/mcs/class/Managed.Windows.Forms/System.Windows.Forms/Control.cs
C# | 6728 lines | 5302 code | 1158 blank | 268 comment | 1215 complexity | 78e5bdf745b8d860b07ccbff92d06a4c MD5 | raw file
Possible License(s): Unlicense, Apache-2.0, LGPL-2.0, MPL-2.0-no-copyleft-exception, CC-BY-SA-3.0, GPL-2.0
- // Permission is hereby granted, free of charge, to any person obtaining
- // a copy of this software and associated documentation files (the
- // "Software"), to deal in the Software without restriction, including
- // without limitation the rights to use, copy, modify, merge, publish,
- // distribute, sublicense, and/or sell copies of the Software, and to
- // permit persons to whom the Software is furnished to do so, subject to
- // the following conditions:
- //
- // The above copyright notice and this permission notice shall be
- // included in all copies or substantial portions of the Software.
- //
- // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- //
- // Copyright (c) 2004-2006 Novell, Inc.
- //
- // Authors:
- // Peter Bartok pbartok@novell.com
- //
- // Partially based on work by:
- // Aleksey Ryabchuk ryabchuk@yahoo.com
- // Alexandre Pigolkine pigolkine@gmx.de
- // Dennis Hayes dennish@raytek.com
- // Jaak Simm jaaksimm@firm.ee
- // John Sohn jsohn@columbus.rr.com
- //
- #undef DebugRecreate
- #undef DebugFocus
- #undef DebugMessages
- using System;
- using System.ComponentModel;
- using System.ComponentModel.Design;
- using System.ComponentModel.Design.Serialization;
- using System.Collections;
- using System.Diagnostics;
- using System.Drawing;
- using System.Drawing.Drawing2D;
- using System.Reflection;
- using System.Runtime.InteropServices;
- using System.Security;
- using System.Threading;
- namespace System.Windows.Forms
- {
- [ComVisible(true)]
- [ClassInterface (ClassInterfaceType.AutoDispatch)]
- [Designer("System.Windows.Forms.Design.ControlDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
- [DefaultProperty("Text")]
- [DefaultEvent("Click")]
- [DesignerSerializer("System.Windows.Forms.Design.ControlCodeDomSerializer, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.Serialization.CodeDomSerializer, " + Consts.AssemblySystem_Design)]
- [ToolboxItemFilter("System.Windows.Forms")]
- public class Control : Component, ISynchronizeInvoke, IWin32Window
- , IBindableComponent, IDropTarget, IBounds
- {
- #region Local Variables
- // Basic
- internal Rectangle bounds; // bounding rectangle for control (client area + decorations)
- Rectangle explicit_bounds; // explicitly set bounds
- internal object creator_thread; // thread that created the control
- internal ControlNativeWindow window; // object for native window handle
- private IWindowTarget window_target;
- string name; // for object naming
- // State
- bool is_created; // true if OnCreateControl has been sent
- internal bool has_focus; // true if control has focus
- internal bool is_visible; // true if control is visible
- internal bool is_entered; // is the mouse inside the control?
- internal bool is_enabled; // true if control is enabled (usable/not grayed out)
- bool is_accessible; // true if the control is visible to accessibility applications
- bool is_captured; // tracks if the control has captured the mouse
- internal bool is_toplevel; // tracks if the control is a toplevel window
- bool is_recreating; // tracks if the handle for the control is being recreated
- bool causes_validation; // tracks if validation is executed on changes
- bool is_focusing; // tracks if Focus has been called on the control and has not yet finished
- int tab_index; // position in tab order of siblings
- bool tab_stop; // is the control a tab stop?
- bool is_disposed; // has the window already been disposed?
- bool is_disposing; // is the window getting disposed?
- Size client_size; // size of the client area (window excluding decorations)
- Rectangle client_rect; // rectangle with the client area (window excluding decorations)
- ControlStyles control_style; // rather win32-specific, style bits for control
- ImeMode ime_mode;
- object control_tag; // object that contains data about our control
- internal int mouse_clicks; // Counter for mouse clicks
- Cursor cursor; // Cursor for the window
- internal bool allow_drop; // true if the control accepts droping objects on it
- Region clip_region; // User-specified clip region for the window
- // Visuals
- internal Color foreground_color; // foreground color for control
- internal Color background_color; // background color for control
- Image background_image; // background image for control
- internal Font font; // font for control
- string text; // window/title text for control
- internal BorderStyle border_style; // Border style of control
- bool show_keyboard_cues; // Current keyboard cues
- internal bool show_focus_cues; // Current focus cues
- internal bool force_double_buffer; // Always doublebuffer regardless of ControlStyle
- // Layout
- internal enum LayoutType {
- Anchor,
- Dock
- }
- Layout.LayoutEngine layout_engine;
- internal int layout_suspended;
- bool layout_pending; // true if our parent needs to re-layout us
- internal AnchorStyles anchor_style; // anchoring requirements for our control
- internal DockStyle dock_style; // docking requirements for our control
- LayoutType layout_type;
- private bool recalculate_distances = true; // Delay anchor calculations
- // Please leave the next 2 as internal until DefaultLayout (2.0) is rewritten
- internal int dist_right; // distance to the right border of the parent
- internal int dist_bottom; // distance to the bottom border of the parent
- // to be categorized...
- ControlCollection child_controls; // our children
- Control parent; // our parent control
- BindingContext binding_context;
- RightToLeft right_to_left; // drawing direction for control
- ContextMenu context_menu; // Context menu associated with the control
- internal bool use_compatible_text_rendering;
- private bool use_wait_cursor;
- //accessibility
- string accessible_name;
- string accessible_description;
- string accessible_default_action;
- AccessibleRole accessible_role = AccessibleRole.Default;
- AccessibleObject accessibility_object; // object that contains accessibility information about our control
- // double buffering
- DoubleBuffer backbuffer;
- ControlBindingsCollection data_bindings;
- static bool verify_thread_handle;
- Padding padding;
- ImageLayout backgroundimage_layout;
- Size maximum_size;
- Size minimum_size;
- Padding margin;
- private ContextMenuStrip context_menu_strip;
- private bool nested_layout = false;
- Point auto_scroll_offset;
- private AutoSizeMode auto_size_mode;
- private bool suppressing_key_press;
- #endregion // Local Variables
- #region Private Classes
- // This helper class allows us to dispatch messages to Control.WndProc
- internal class ControlNativeWindow : NativeWindow {
- private Control owner;
- public ControlNativeWindow(Control control) : base() {
- this.owner=control;
- }
- public Control Owner {
- get {
- return owner;
- }
- }
- protected override void OnHandleChange()
- {
- this.owner.WindowTarget.OnHandleChange(this.owner.Handle);
- }
- static internal Control ControlFromHandle(IntPtr hWnd) {
- ControlNativeWindow window;
- window = (ControlNativeWindow)NativeWindow.FromHandle (hWnd);
- if (window != null) {
- return window.owner;
- }
- return null;
- }
- static internal Control ControlFromChildHandle (IntPtr handle) {
- ControlNativeWindow window;
- Hwnd hwnd = Hwnd.ObjectFromHandle (handle);
- while (hwnd != null) {
- window = (ControlNativeWindow)NativeWindow.FromHandle (handle);
- if (window != null) {
- return window.owner;
- }
- hwnd = hwnd.Parent;
- }
- return null;
- }
- protected override void WndProc(ref Message m) {
- owner.WindowTarget.OnMessage(ref m);
- }
- }
- private class ControlWindowTarget : IWindowTarget
- {
- private Control control;
- public ControlWindowTarget(Control control)
- {
- this.control = control;
- }
- public void OnHandleChange(IntPtr newHandle)
- {
- }
- public void OnMessage(ref Message m)
- {
- control.WndProc(ref m);
- }
- }
- #endregion
-
- #region Public Classes
- [ComVisible(true)]
- public class ControlAccessibleObject : AccessibleObject {
- IntPtr handle;
- #region ControlAccessibleObject Constructors
- public ControlAccessibleObject(Control ownerControl)
- : base (ownerControl)
- {
- if (ownerControl == null)
- throw new ArgumentNullException ("owner");
- handle = ownerControl.Handle;
- }
- #endregion // ControlAccessibleObject Constructors
- #region ControlAccessibleObject Public Instance Properties
- public override string DefaultAction {
- get {
- return base.DefaultAction;
- }
- }
- public override string Description {
- get {
- return base.Description;
- }
- }
- public IntPtr Handle {
- get {
- return handle;
- }
- set {
- // We don't want to let them set it
- }
- }
- public override string Help {
- get {
- return base.Help;
- }
- }
- public override string KeyboardShortcut {
- get {
- return base.KeyboardShortcut;
- }
- }
- public override string Name {
- get {
- return base.Name;
- }
- set {
- base.Name = value;
- }
- }
- public Control Owner {
- get {
- return base.owner;
- }
- }
- public override AccessibleObject Parent {
- get {
- return base.Parent;
- }
- }
- public override AccessibleRole Role {
- get {
- return base.Role;
- }
- }
- #endregion // ControlAccessibleObject Public Instance Properties
- #region ControlAccessibleObject Public Instance Methods
- public override int GetHelpTopic (out string fileName)
- {
- return base.GetHelpTopic (out fileName);
- }
- [MonoTODO ("Stub, does nothing")]
- public void NotifyClients (AccessibleEvents accEvent)
- {
- }
- [MonoTODO ("Stub, does nothing")]
- public void NotifyClients (AccessibleEvents accEvent, int childID)
- {
- }
- [MonoTODO ("Stub, does nothing")]
- public void NotifyClients (AccessibleEvents accEvent, int objectID, int childID)
- {
- }
- public override string ToString() {
- return "ControlAccessibleObject: Owner = " + owner.ToString() + ", Text: " + owner.text;
- }
- #endregion // ControlAccessibleObject Public Instance Methods
- }
- private class DoubleBuffer : IDisposable
- {
- public Region InvalidRegion;
- private Stack real_graphics;
- private object back_buffer;
- private Control parent;
- private bool pending_disposal;
-
- public DoubleBuffer (Control parent) {
- this.parent = parent;
- real_graphics = new Stack ();
- int width = parent.Width;
- int height = parent.Height;
- if (width < 1) width = 1;
- if (height < 1) height = 1;
- XplatUI.CreateOffscreenDrawable (parent.Handle, width, height, out back_buffer);
- Invalidate ();
- }
-
- public void Blit (PaintEventArgs pe) {
- Graphics buffered_graphics;
- buffered_graphics = XplatUI.GetOffscreenGraphics (back_buffer);
- XplatUI.BlitFromOffscreen (parent.Handle, pe.Graphics, back_buffer, buffered_graphics, pe.ClipRectangle);
- buffered_graphics.Dispose ();
- }
-
- public void Start (PaintEventArgs pe) {
- // We need to get the graphics for every paint.
- real_graphics.Push(pe.SetGraphics (XplatUI.GetOffscreenGraphics (back_buffer)));
- }
- public void End (PaintEventArgs pe) {
- Graphics buffered_graphics;
- buffered_graphics = pe.SetGraphics ((Graphics) real_graphics.Pop ());
- if (pending_disposal)
- Dispose ();
- else {
- XplatUI.BlitFromOffscreen (parent.Handle, pe.Graphics, back_buffer, buffered_graphics, pe.ClipRectangle);
- InvalidRegion.Exclude (pe.ClipRectangle);
- }
- buffered_graphics.Dispose ();
- }
-
- public void Invalidate ()
- {
- if (InvalidRegion != null)
- InvalidRegion.Dispose ();
- InvalidRegion = new Region (parent.ClientRectangle);
- }
-
- public void Dispose () {
- if (real_graphics.Count > 0) {
- pending_disposal = true;
- return;
- }
-
- XplatUI.DestroyOffscreenDrawable (back_buffer);
- if (InvalidRegion != null)
- InvalidRegion.Dispose ();
- InvalidRegion = null;
- back_buffer = null;
- GC.SuppressFinalize (this);
- }
- #region IDisposable Members
- void IDisposable.Dispose () {
- Dispose ();
- }
- #endregion
-
- ~DoubleBuffer () {
- Dispose ();
- }
- }
- [ListBindable (false)]
- [ComVisible (false)]
- public class ControlCollection : Layout.ArrangedElementCollection, IList, ICollection, ICloneable, IEnumerable {
- #region ControlCollection Local Variables
- ArrayList impl_list;
- Control [] all_controls;
- Control owner;
- #endregion // ControlCollection Local Variables
- #region ControlCollection Public Constructor
- public ControlCollection (Control owner)
- {
- this.owner = owner;
- }
- #endregion
- #region ControlCollection Public Instance Properties
- public Control Owner {
- get { return this.owner; }
- }
-
- public virtual Control this[string key] {
- get {
- int index = IndexOfKey (key);
-
- if (index >= 0)
- return this[index];
-
- return null;
- }
- }
-
- new public virtual Control this[int index] {
- get {
- if (index < 0 || index >= list.Count) {
- throw new ArgumentOutOfRangeException("index", index, "ControlCollection does not have that many controls");
- }
- return (Control)list[index];
- }
-
-
- }
- #endregion // ControlCollection Public Instance Properties
-
- #region ControlCollection Instance Methods
- public virtual void Add (Control value)
- {
- if (value == null)
- return;
- Form form_value = value as Form;
- Form form_owner = owner as Form;
- bool owner_permits_toplevels = (owner is MdiClient) || (form_owner != null && form_owner.IsMdiContainer);
- bool child_is_toplevel = value.GetTopLevel();
- bool child_is_mdichild = form_value != null && form_value.IsMdiChild;
- if (child_is_toplevel && !(owner_permits_toplevels && child_is_mdichild))
- throw new ArgumentException("Cannot add a top level control to a control.", "value");
-
- if (child_is_mdichild && form_value.MdiParent != null && form_value.MdiParent != owner && form_value.MdiParent != owner.Parent) {
- throw new ArgumentException ("Form cannot be added to the Controls collection that has a valid MDI parent.", "value");
- }
-
- value.recalculate_distances = true;
-
- if (Contains (value)) {
- owner.PerformLayout();
- return;
- }
- if (value.tab_index == -1) {
- int end;
- int index;
- int use;
- use = 0;
- end = owner.child_controls.Count;
- for (int i = 0; i < end; i++) {
- index = owner.child_controls[i].tab_index;
- if (index >= use) {
- use = index + 1;
- }
- }
- value.tab_index = use;
- }
- if (value.parent != null) {
- value.parent.Controls.Remove(value);
- }
- all_controls = null;
- list.Add (value);
- value.ChangeParent(owner);
- value.InitLayout();
- if (owner.Visible)
- owner.UpdateChildrenZOrder();
- owner.PerformLayout(value, "Parent");
- owner.OnControlAdded(new ControlEventArgs(value));
- }
-
- internal void AddToList (Control c)
- {
- all_controls = null;
- list.Add (c);
- }
- internal virtual void AddImplicit (Control control)
- {
- if (impl_list == null)
- impl_list = new ArrayList ();
- if (AllContains (control)) {
- owner.PerformLayout ();
- return;
- }
- if (control.parent != null) {
- control.parent.Controls.Remove(control);
- }
- all_controls = null;
- impl_list.Add (control);
- control.ChangeParent (owner);
- control.InitLayout ();
- if (owner.Visible)
- owner.UpdateChildrenZOrder ();
-
- // If we are adding a new control that isn't
- // visible, don't trigger a layout
- if (control.VisibleInternal)
- owner.PerformLayout (control, "Parent");
- }
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
- public virtual void AddRange (Control[] controls)
- {
- if (controls == null)
- throw new ArgumentNullException ("controls");
- owner.SuspendLayout ();
- try {
- for (int i = 0; i < controls.Length; i++)
- Add (controls[i]);
- } finally {
- owner.ResumeLayout ();
- }
- }
- internal virtual void AddRangeImplicit (Control [] controls)
- {
- if (controls == null)
- throw new ArgumentNullException ("controls");
- owner.SuspendLayout ();
- try {
- for (int i = 0; i < controls.Length; i++)
- AddImplicit (controls [i]);
- } finally {
- owner.ResumeLayout (false);
- }
- }
- new
- public virtual void Clear ()
- {
- all_controls = null;
- // MS sends remove events in reverse order
- while (list.Count > 0) {
- Remove((Control)list[list.Count - 1]);
- }
- }
- internal virtual void ClearImplicit ()
- {
- if (impl_list == null)
- return;
- all_controls = null;
- impl_list.Clear ();
- }
- public bool Contains (Control control)
- {
- return list.Contains (control);
- }
- internal bool ImplicitContains (Control value) {
- if (impl_list == null)
- return false;
- return impl_list.Contains (value);
- }
- internal bool AllContains (Control value) {
- return Contains (value) || ImplicitContains (value);
- }
- public virtual bool ContainsKey (string key)
- {
- return IndexOfKey (key) >= 0;
- }
- // LAMESPEC: MSDN says AE, MS implementation throws ANE
- public Control[] Find (string key, bool searchAllChildren)
- {
- if (string.IsNullOrEmpty (key))
- throw new ArgumentNullException ("key");
-
- ArrayList al = new ArrayList ();
-
- foreach (Control c in list) {
- if (c.Name.Equals (key, StringComparison.CurrentCultureIgnoreCase))
- al.Add (c);
-
- if (searchAllChildren)
- al.AddRange (c.Controls.Find (key, true));
- }
-
- return (Control[])al.ToArray (typeof (Control));
- }
- public int GetChildIndex(Control child) {
- return GetChildIndex(child, false);
- }
- public virtual int GetChildIndex(Control child, bool throwException) {
- int index;
- index=list.IndexOf(child);
- if (index==-1 && throwException) {
- throw new ArgumentException("Not a child control", "child");
- }
- return index;
- }
- public override IEnumerator
- GetEnumerator () {
- return new ControlCollectionEnumerator (list);
- }
- internal IEnumerator GetAllEnumerator () {
- Control [] res = GetAllControls ();
- return res.GetEnumerator ();
- }
- internal ArrayList ImplicitControls {
- get { return impl_list; }
- }
-
- internal Control [] GetAllControls () {
- if (all_controls != null)
- return all_controls;
- if (impl_list == null) {
- all_controls = (Control []) list.ToArray (typeof (Control));
- return all_controls;
- }
-
- all_controls = new Control [list.Count + impl_list.Count];
- impl_list.CopyTo (all_controls);
- list.CopyTo (all_controls, impl_list.Count);
- return all_controls;
- }
- public int IndexOf (Control control)
- {
- return list.IndexOf (control);
- }
- public virtual int IndexOfKey (string key)
- {
- if (string.IsNullOrEmpty (key))
- return -1;
-
- for (int i = 0; i < list.Count; i++)
- if (((Control)list[i]).Name.Equals (key, StringComparison.CurrentCultureIgnoreCase))
- return i;
-
- return -1;
- }
- public virtual void Remove (Control value)
- {
- if (value == null)
- return;
- all_controls = null;
- list.Remove(value);
- owner.PerformLayout(value, "Parent");
- owner.OnControlRemoved(new ControlEventArgs(value));
- ContainerControl container = owner.InternalGetContainerControl ();
- if (container != null) {
- // Inform any container controls about the loss of a child control
- // so that they can update their active control
- container.ChildControlRemoved (value);
- }
- value.ChangeParent(null);
- owner.UpdateChildrenZOrder();
- }
- internal virtual void RemoveImplicit (Control control)
- {
- if (impl_list != null) {
- all_controls = null;
- impl_list.Remove (control);
- owner.PerformLayout (control, "Parent");
- owner.OnControlRemoved (new ControlEventArgs (control));
- }
- control.ChangeParent (null);
- owner.UpdateChildrenZOrder ();
- }
- public void RemoveAt (int index)
- {
- if (index < 0 || index >= list.Count)
- throw new ArgumentOutOfRangeException("index", index, "ControlCollection does not have that many controls");
- Remove ((Control) list [index]);
- }
- public virtual void RemoveByKey (string key)
- {
- int index = IndexOfKey (key);
-
- if (index >= 0)
- RemoveAt (index);
- }
- public virtual void SetChildIndex(Control child, int newIndex)
- {
- if (child == null)
- throw new ArgumentNullException ("child");
- int old_index;
- old_index=list.IndexOf(child);
- if (old_index==-1) {
- throw new ArgumentException("Not a child control", "child");
- }
- if (old_index==newIndex) {
- return;
- }
- all_controls = null;
- list.RemoveAt(old_index);
- if (newIndex>list.Count) {
- list.Add(child);
- } else {
- list.Insert(newIndex, child);
- }
- child.UpdateZOrder();
- owner.PerformLayout();
- }
- #endregion // ControlCollection Private Instance Methods
- #region ControlCollection Interface Properties
- #endregion // ControlCollection Interface Properties
- #region ControlCollection Interface Methods
- int IList.Add (object control)
- {
- if (!(control is Control))
- throw new ArgumentException ("Object of type Control required", "control");
- if (control == null)
- throw new ArgumentException ("control", "Cannot add null controls");
- this.Add ((Control)control);
- return this.IndexOf ((Control)control);
- }
- void IList.Remove (object control)
- {
- if (!(control is Control))
- throw new ArgumentException ("Object of type Control required", "control");
- this.Remove ((Control)control);
- }
- Object ICloneable.Clone ()
- {
- ControlCollection clone = new ControlCollection (this.owner);
- clone.list = (ArrayList)list.Clone (); // FIXME: Do we need this?
- return clone;
- }
- #endregion // ControlCollection Interface Methods
-
- internal class ControlCollectionEnumerator : IEnumerator
- {
- private ArrayList list;
- int position = -1;
-
- public ControlCollectionEnumerator (ArrayList collection)
- {
- list = collection;
- }
-
- #region IEnumerator Members
- public object Current {
- get {
- try {
- return list[position];
- } catch (IndexOutOfRangeException) {
- throw new InvalidOperationException ();
- }
- }
- }
- public bool MoveNext ()
- {
- position++;
- return (position < list.Count);
- }
- public void Reset ()
- {
- position = -1;
- }
- #endregion
- }
- }
- #endregion // ControlCollection Class
-
- #region Public Constructors
- public Control ()
- {
- if (WindowsFormsSynchronizationContext.AutoInstall)
- if (!(SynchronizationContext.Current is WindowsFormsSynchronizationContext))
- SynchronizationContext.SetSynchronizationContext (new WindowsFormsSynchronizationContext ());
- layout_type = LayoutType.Anchor;
- anchor_style = AnchorStyles.Top | AnchorStyles.Left;
- is_created = false;
- is_visible = true;
- is_captured = false;
- is_disposed = false;
- is_enabled = true;
- is_entered = false;
- layout_pending = false;
- is_toplevel = false;
- causes_validation = true;
- has_focus = false;
- layout_suspended = 0;
- mouse_clicks = 1;
- tab_index = -1;
- cursor = null;
- right_to_left = RightToLeft.Inherit;
- border_style = BorderStyle.None;
- background_color = Color.Empty;
- dist_right = 0;
- dist_bottom = 0;
- tab_stop = true;
- ime_mode = ImeMode.Inherit;
- use_compatible_text_rendering = true;
- show_keyboard_cues = false;
- show_focus_cues = SystemInformation.MenuAccessKeysUnderlined;
- use_wait_cursor = false;
- backgroundimage_layout = ImageLayout.Tile;
- use_compatible_text_rendering = Application.use_compatible_text_rendering;
- padding = this.DefaultPadding;
- maximum_size = new Size();
- minimum_size = new Size();
- margin = this.DefaultMargin;
- auto_size_mode = AutoSizeMode.GrowOnly;
- control_style = ControlStyles.UserPaint | ControlStyles.AllPaintingInWmPaint |
- ControlStyles.Selectable | ControlStyles.StandardClick |
- ControlStyles.StandardDoubleClick;
- control_style |= ControlStyles.UseTextForAccessibility;
- parent = null;
- background_image = null;
- text = string.Empty;
- name = string.Empty;
- window_target = new ControlWindowTarget(this);
- window = new ControlNativeWindow(this);
- child_controls = CreateControlsInstance();
-
- bounds.Size = DefaultSize;
- client_size = ClientSizeFromSize (bounds.Size);
- client_rect = new Rectangle (Point.Empty, client_size);
- explicit_bounds = bounds;
- }
- public Control (Control parent, string text) : this()
- {
- Text=text;
- Parent=parent;
- }
- public Control (Control parent, string text, int left, int top, int width, int height) : this()
- {
- Parent=parent;
- SetBounds(left, top, width, height, BoundsSpecified.All);
- Text=text;
- }
- public Control (string text) : this()
- {
- Text=text;
- }
- public Control (string text, int left, int top, int width, int height) : this()
- {
- SetBounds(left, top, width, height, BoundsSpecified.All);
- Text=text;
- }
- private delegate void RemoveDelegate(object c);
- protected override void Dispose (bool disposing)
- {
- if (!is_disposed && disposing) {
- is_disposing = true;
- Capture = false;
- DisposeBackBuffer ();
- if (this.InvokeRequired) {
- if (Application.MessageLoop && IsHandleCreated) {
- this.BeginInvokeInternal(new MethodInvoker(DestroyHandle), null);
- }
- } else {
- DestroyHandle();
- }
- if (parent != null)
- parent.Controls.Remove(this);
- Control [] children = child_controls.GetAllControls ();
- for (int i=0; i<children.Length; i++) {
- children[i].parent = null; // Need to set to null or our child will try and remove from ourselves and crash
- children[i].Dispose();
- }
- }
- is_disposed = true;
- base.Dispose(disposing);
- }
- #endregion // Public Constructors
- #region Internal Properties
- internal Rectangle PaddingClientRectangle
- {
- get {
- return new Rectangle (
- ClientRectangle.Left + padding.Left,
- ClientRectangle.Top + padding.Top,
- ClientRectangle.Width - padding.Horizontal,
- ClientRectangle.Height - padding.Vertical);
- }
- }
- private MenuTracker active_tracker;
-
- internal MenuTracker ActiveTracker {
- get { return active_tracker; }
- set {
- if (value == active_tracker)
- return;
- Capture = value != null;
- active_tracker = value;
- }
- }
- // Control is currently selected, like Focused, except maintains state
- // when Form loses focus
- internal bool InternalSelected {
- get {
- IContainerControl container;
-
- container = GetContainerControl();
-
- if (container != null && container.ActiveControl == this)
- return true;
-
- return false;
- }
- }
- // Looks for focus in child controls
- // and also in the implicit ones
- internal bool InternalContainsFocus {
- get {
- IntPtr focused_window;
- focused_window = XplatUI.GetFocus();
- if (IsHandleCreated) {
- if (focused_window == Handle)
- return true;
- foreach (Control child_control in child_controls.GetAllControls ())
- if (child_control.InternalContainsFocus)
- return true;
- }
- return false;
- }
- }
-
- // Mouse is currently within the control's bounds
- internal bool Entered {
- get { return this.is_entered; }
- }
- internal bool VisibleInternal {
- get { return is_visible; }
- }
- internal LayoutType ControlLayoutType {
- get { return layout_type; }
- }
- internal BorderStyle InternalBorderStyle {
- get {
- return border_style;
- }
- set {
- if (!Enum.IsDefined (typeof (BorderStyle), value))
- throw new InvalidEnumArgumentException (string.Format("Enum argument value '{0}' is not valid for BorderStyle", value));
- if (border_style != value) {
- border_style = value;
- if (IsHandleCreated) {
- XplatUI.SetBorderStyle (window.Handle, (FormBorderStyle)border_style);
- RecreateHandle ();
- Refresh ();
- } else
- client_size = ClientSizeFromSize (bounds.Size);
- }
- }
- }
-
- internal Size InternalClientSize { set { this.client_size = value; } }
- internal virtual bool ActivateOnShow { get { return true; } }
- internal Rectangle ExplicitBounds { get { return this.explicit_bounds; } set { this.explicit_bounds = value; } }
- internal bool ValidationFailed {
- get {
- ContainerControl c = InternalGetContainerControl ();
- if (c != null)
- return c.validation_failed;
- return false;
- }
- set {
- ContainerControl c = InternalGetContainerControl ();
- if (c != null)
- c.validation_failed = value;
- }
- }
- #endregion // Internal Properties
- #region Private & Internal Methods
-
- void IDropTarget.OnDragDrop (DragEventArgs drgEvent)
- {
- OnDragDrop (drgEvent);
- }
-
- void IDropTarget.OnDragEnter (DragEventArgs drgEvent)
- {
- OnDragEnter (drgEvent);
- }
-
- void IDropTarget.OnDragLeave (EventArgs e)
- {
- OnDragLeave (e);
- }
- void IDropTarget.OnDragOver (DragEventArgs drgEvent)
- {
- OnDragOver (drgEvent);
- }
- internal IAsyncResult BeginInvokeInternal (Delegate method, object [] args) {
- return BeginInvokeInternal (method, args, FindControlToInvokeOn ());
- }
- internal IAsyncResult BeginInvokeInternal (Delegate method, object [] args, Control control) {
- AsyncMethodResult result;
- AsyncMethodData data;
- result = new AsyncMethodResult ();
- data = new AsyncMethodData ();
- data.Handle = control.GetInvokableHandle ();
- data.Method = method;
- data.Args = args;
- data.Result = result;
- if (!ExecutionContext.IsFlowSuppressed ()) {
- data.Context = ExecutionContext.Capture ();
- }
- XplatUI.SendAsyncMethod (data);
- return result;
- }
- // The CheckForIllegalCrossThreadCalls in the #if 2.0 of
- // Control.Handle throws an exception when we are trying
- // to get the Handle to properly invoke on. This avoids that.
- private IntPtr GetInvokableHandle ()
- {
- if (!IsHandleCreated)
- CreateHandle ();
- return window.Handle;
- }
- internal void PointToClient (ref int x, ref int y) {
- XplatUI.ScreenToClient (Handle, ref x, ref y);
- }
- internal void PointToScreen (ref int x, ref int y) {
- XplatUI.ClientToScreen (Handle, ref x, ref y);
- }
- internal bool IsRecreating {
- get {
- return is_recreating;
- }
- }
- internal Graphics DeviceContext {
- get { return Hwnd.GraphicsContext; }
- }
- // An internal way to have a fixed height
- // Basically for DataTimePicker 2.0
- internal virtual int OverrideHeight (int height)
- {
- return height;
- }
-
- private void ProcessActiveTracker (ref Message m)
- {
- bool is_up = ((Msg) m.Msg == Msg.WM_LBUTTONUP) ||
- ((Msg) m.Msg == Msg.WM_RBUTTONUP);
-
- MouseButtons mb = FromParamToMouseButtons ((int) m.WParam.ToInt32 ());
-
- // We add in the button that was released (not sent in WParam)
- if (is_up) {
- switch ((Msg)m.Msg) {
- case Msg.WM_LBUTTONUP:
- mb |= MouseButtons.Left;
- break;
- case Msg.WM_RBUTTONUP:
- mb |= MouseButtons.Right;
- break;
- }
- }
-
- MouseEventArgs args = new MouseEventArgs (
- mb,
- mouse_clicks,
- Control.MousePosition.X,
- Control.MousePosition.Y,
- 0);
- if (is_up) {
- active_tracker.OnMouseUp (args);
- mouse_clicks = 1;
- } else {
- if (!active_tracker.OnMouseDown (args)) {
- Control control = GetRealChildAtPoint (Cursor.Position);
- if (control != null) {
- Point pt = control.PointToClient (Cursor.Position);
- XplatUI.SendMessage (control.Handle,
- (Msg)m.Msg,
- m.WParam,
- MakeParam (pt.X, pt.Y));
- }
- }
- }
- }
- private Control FindControlToInvokeOn ()
- {
- Control p = this;
- do {
- if (p.IsHandleCreated)
- break;
- p = p.parent;
- } while (p != null);
- if (p == null || !p.IsHandleCreated)
- throw new InvalidOperationException ("Cannot call Invoke or BeginInvoke on a control until the window handle is created");
-
- return p;
- }
- private void InvalidateBackBuffer () {
- if (backbuffer != null)
- backbuffer.Invalidate ();
- }
- private DoubleBuffer GetBackBuffer () {
- if (backbuffer == null)
- backbuffer = new DoubleBuffer (this);
- return backbuffer;
- }
- private void DisposeBackBuffer () {
- if (backbuffer != null) {
- backbuffer.Dispose ();
- backbuffer = null;
- }
- }
- internal static void SetChildColor(Control parent) {
- Control child;
- for (int i=0; i < parent.child_controls.Count; i++) {
- child=parent.child_controls[i];
- if (child.child_controls.Count>0) {
- SetChildColor(child);
- }
- }
- }
- internal bool Select(Control control) {
- IContainerControl container;
- if (control == null) {
- return false;
- }
- container = GetContainerControl();
- if (container != null && (Control)container != control) {
- container.ActiveControl = control;
- if (container.ActiveControl == control && !control.has_focus && control.IsHandleCreated)
- XplatUI.SetFocus(control.window.Handle);
- }
- else if (control.IsHandleCreated) {
- XplatUI.SetFocus(control.window.Handle);
- }
- return true;
- }
- internal virtual void DoDefaultAction() {
- // Only here to be overriden by our actual controls; this is needed by the accessibility class
- }
- internal static IntPtr MakeParam (int low, int high){
- return new IntPtr (high << 16 | low & 0xffff);
- }
- internal static int LowOrder (int param) {
- return ((int)(short)(param & 0xffff));
- }
- internal static int HighOrder (long param) {
- return ((int)(short)(param >> 16));
- }
- // This method exists so controls overriding OnPaintBackground can have default background painting done
- internal virtual void PaintControlBackground (PaintEventArgs pevent) {
- bool tbstyle_flat = ((CreateParams.Style & (int) ToolBarStyles.TBSTYLE_FLAT) != 0);
- // If we have transparent background
- if (((BackColor.A != 0xff) && GetStyle(ControlStyles.SupportsTransparentBackColor)) || tbstyle_flat) {
- if (parent != null) {
- PaintEventArgs parent_pe;
- GraphicsState state;
- parent_pe = new PaintEventArgs(pevent.Graphics, new Rectangle(pevent.ClipRectangle.X + Left, pevent.ClipRectangle.Y + Top, pevent.ClipRectangle.Width, pevent.ClipRectangle.Height));
- state = parent_pe.Graphics.Save();
- parent_pe.Graphics.TranslateTransform(-Left, -Top);
- parent.OnPaintBackground(parent_pe);
- parent_pe.Graphics.Restore(state);
- state = parent_pe.Graphics.Save();
- parent_pe.Graphics.TranslateTransform(-Left, -Top);
- parent.OnPaint(parent_pe);
- parent_pe.Graphics.Restore(state);
- parent_pe.SetGraphics(null);
- }
- }
- if ((clip_region != null) && (XplatUI.UserClipWontExposeParent)) {
- if (parent != null) {
- PaintEventArgs parent_pe;
- Region region;
- GraphicsState state;
- Hwnd hwnd;
- hwnd = Hwnd.ObjectFromHandle(Handle);
- if (hwnd != null) {
- parent_pe = new PaintEventArgs(pevent.Graphics, new Rectangle(pevent.ClipRectangle.X + Left, pevent.ClipRectangle.Y + Top, pevent.ClipRectangle.Width, pevent.ClipRectangle.Height));
- region = new Region ();
- region.MakeEmpty();
- region.Union(ClientRectangle);
- foreach (Rectangle r in hwnd.ClipRectangles) {
- region.Union (r);
- }
- state = parent_pe.Graphics.Save();
- parent_pe.Graphics.Clip = region;
- parent_pe.Graphics.TranslateTransform(-Left, -Top);
- parent.OnPaintBackground(parent_pe);
- parent_pe.Graphics.Restore(state);
- state = parent_pe.Graphics.Save();
- parent_pe.Graphics.Clip = region;
- parent_pe.Graphics.TranslateTransform(-Left, -Top);
- parent.OnPaint(parent_pe);
- parent_pe.Graphics.Restore(state);
- parent_pe.SetGraphics(null);
- region.Intersect(clip_region);
- pevent.Graphics.Clip = region;
- }
- }
- }
- if (background_image == null) {
- if (!tbstyle_flat) {
- Rectangle paintRect = pevent.ClipRectangle;
- Brush pen = ThemeEngine.Current.ResPool.GetSolidBrush(BackColor);
- pevent.Graphics.FillRectangle(pen, paintRect);
- }
- return;
- }
- DrawBackgroundImage (pevent.Graphics);
- }
- void DrawBackgroundImage (Graphics g) {
- Rectangle drawing_rectangle = new Rectangle ();
- g.FillRectangle (ThemeEngine.Current.ResPool.GetSolidBrush (BackColor), ClientRectangle);
-
- switch (backgroundimage_layout)
- {
- case ImageLayout.Tile:
- using (TextureBrush b = new TextureBrush (background_image, WrapMode.Tile)) {
- g.FillRectangle (b, ClientRectangle);
- }
- return;
- case ImageLayout.Center:
- drawing_rectangle.Location = new Point (ClientSize.Width / 2 - background_image.Width / 2, ClientSize.Height / 2 - background_image.Height / 2);
- drawing_rectangle.Size = background_image.Size;
- break;
- case ImageLayout.None:
- drawing_rectangle.Location = Point.Empty;
- drawing_rectangle.Size = background_image.Size;
- break;
- case ImageLayout.Stretch:
- drawing_rectangle = ClientRectangle;
- break;
- case ImageLayout.Zoom:
- drawing_rectangle = ClientRectangle;
- if ((float)background_image.Width / (float)background_image.Height < (float)drawing_rectangle.Width / (float) drawing_rectangle.Height) {
- drawing_rectangle.Width = (int) (background_image.Width * ((float)drawing_rectangle.Height / (float)background_image.Height));
- drawing_rectangle.X = (ClientRectangle.Width - drawing_rectangle.Width) / 2;
- } else {
- drawing_rectangle.Height = (int) (background_image.Height * ((float)drawing_rectangle.Width / (float)background_image.Width));
- drawing_rectangle.Y = (ClientRectangle.Height - drawing_rectangle.Height) / 2;
- }
- break;
- default:
- return;
- }
- g.DrawImage (background_image, drawing_rectangle);
- }
- internal virtual void DndEnter (DragEventArgs e) {
- try {
- OnDragEnter (e);
- } catch { }
- }
- internal virtual void DndOver (DragEventArgs e) {
- try {
- OnDragOver (e);
- } catch { }
- }
- internal virtual void DndDrop (DragEventArgs e) {
- try {
- OnDragDrop (e);
- } catch (Exception exc) {
- Console.Error.WriteLine ("MWF: Exception while dropping:");
- Console.Error.WriteLine (exc);
- }
- }
- internal virtual void DndLeave (EventArgs e) {
- try {
- OnDragLeave (e);
- } catch { }
- }
- internal virtual void DndFeedback(GiveFeedbackEventArgs e) {
- try {
- OnGiveFeedback(e);
- } catch { }
- }
- internal virtual void DndContinueDrag(QueryContinueDragEventArgs e) {
- try {
- OnQueryContinueDrag(e);
- } catch { }
- }
-
- internal static MouseButtons FromParamToMouseButtons (long param) {
- MouseButtons buttons = MouseButtons.None;
-
- if ((param & (long) MsgButtons.MK_LBUTTON) != 0)
- buttons |= MouseButtons.Left;
- if ((param & (long)MsgButtons.MK_MBUTTON) != 0)
- buttons |= MouseButtons.Middle;
- if ((param & (long)MsgButtons.MK_RBUTTON) != 0)
- buttons |= MouseButtons.Right;
-
- return buttons;
- }
- internal virtual void FireEnter () {
- OnEnter (EventArgs.Empty);
- }
- internal virtual void FireLeave () {
- OnLeave (EventArgs.Empty);
- }
- internal virtual void FireValidating (CancelEventArgs ce) {
- OnValidating (ce);
- }
- internal virtual void FireValidated () {
- OnValidated (EventArgs.Empty);
- }
- internal virtual bool ProcessControlMnemonic(char charCode) {
- return ProcessMnemonic(charCode);
- }
- private static Control FindFlatForward(Control container, Control start) {
- Control found;
- int index;
- int end;
- bool hit;
- found = null;
- end = container.child_controls.Count;
- hit = false;
- if (start != null) {
- index = start.tab_index;
- } else {
- index = -1;
- }
- for (int i = 0; i < end; i++) {
- if (start == container.child_controls[i]) {
- hit = true;
- continue;
- }
- if (found == null || found.tab_index > container.child_controls[i].tab_index) {
- if (container.child_controls[i].tab_index > index || (hit && container.child_controls[i].tab_index == index)) {
- found = container.child_controls[i];
- }
- }
- }
- return found;
- }
- private static Control FindControlForward(Control container, Control start) {
- Control found;
- found = null;
- if (start == null) {
- return FindFlatForward(container, start);
- }
- if (start.child_controls != null && start.child_controls.Count > 0 &&
- (start == container || !((start is IContainerControl) && start.GetStyle(ControlStyles.ContainerControl)))) {
- return FindControlForward(start, null);
- }
- else {
- while (start != container) {
- found = FindFlatForward(start.parent, start);
- if (found != null) {
- return found;
- }
- start = start.parent;
- }
- }
- return null;
- }
- private static Control FindFlatBackward(Control container, Control start) {
- Control found;
- int index;
- int end;
- bool hit;
- found = null;
- end = container.child_controls.Count;
- hit = false;
- if (start != null) {
- index = start.tab_index;
- } else {
- index = int.MaxValue;
- }
- for (int i = end - 1; i >= 0; i--) {
- if (start == container.child_controls[i]) {
- hit = true;
- continue;
- }
- if (found == null || found.tab_index < container.child_controls[i].tab_index) {
- if (container.child_controls[i].tab_index < index || (hit && container.child_controls[i].tab_index == index))
- found = container.child_controls[i];
- }
- }
- return found;
- }
- private static Control FindControlBackward(Control container, Control start) {
- Control found = null;
- if (start == null) {
- found = FindFlatBackward(container, start);
- }
- else if (start != container) {
- if (start.parent != null) {
- found = FindFlatBackward(start.parent, start);
- if (found == null) {
- if (start.parent != container)
- return start.parent;
- return null;
- }
- }
- }
-
- if (found == null || start.parent == null)
- found = start;
- while (found != null && (found == container || (!((found is IContainerControl) && found.GetStyle(ControlStyles.ContainerControl))) &&
- found.child_controls != null && found.child_controls.Count > 0)) {
- // while (ctl.child_controls != null && ctl.child_controls.Count > 0 &&
- // (ctl == this || (!((ctl is IContainerControl) && ctl.GetStyle(ControlStyles.ContainerControl))))) {
- found = FindFlatBackward(found, null);
- }
- return found;
- /*
- Control found;
- found = null;
- if (start != null) {
- found = FindFlatBackward(start.parent, start);
- if (found == null) {
- if (start.parent != container) {
- return start.parent;
- }
- }
- }
- if (found == null) {
- found = FindFlatBackward(container, start);
- }
- if (container != start) {
- while ((found != null) && (!found.Contains(start)) && found.child_controls != null && found.child_controls.Count > 0 && !(found is IContainerControl)) {// || found.GetStyle(ControlStyles.ContainerControl))) {
- found = FindControlBackward(found, null);
- if (found != null) {
- return found;
- }
- }
- }
- return found;
- */
- }
- internal virtual void HandleClick(int clicks, MouseEventArgs me) {
- bool standardclick = GetStyle (ControlStyles.StandardClick);
- bool standardclickclick = GetStyle (ControlStyles.StandardDoubleClick);
- if ((clicks > 1) && standardclick && standardclickclick) {
- OnDoubleClick (me);
- OnMouseDoubleClick (me);
- } else if (clicks == 1 && standardclick && !ValidationFailed) {
- OnClick (me);
- OnMouseClick (me);
- }
- }
-
- internal void CaptureWithConfine (Control ConfineWindow) {
- if (this.IsHandleCreated && !is_captured) {
- is_captured = true;
- XplatUI.GrabWindow (this.window.Handle, ConfineWindow.Handle);
- }
- }
- private void CheckDataBindings () {
- if (data_bindings == null)
- return;
- foreach (Binding binding in data_bindings) {
- binding.Check ();
- }
- }
- private void ChangeParent(Control new_parent) {
- bool pre_enabled;
- bool pre_visible;
- Font pre_font;
- Color pre_fore_color;
- Color pre_back_color;
- RightToLeft pre_rtl;
- // These properties are inherited from our parent
- // Get them pre parent-change and then send events
- // if they are changed after we have our new parent
- pre_enabled = Enabled;
- pre_visible = Visible;
- pre_font = Font;
- pre_fore_color = ForeColor;
- pre_back_color = BackColor;
- pre_rtl = RightToLeft;
- // MS doesn't seem to send a CursorChangedEvent
- parent = new_parent;
- Form frm = this as Form;
- if (frm != null) {
- frm.ChangingParent (new_parent);
- } else if (IsHandleCreated) {
- IntPtr parent_handle = IntPtr.Zero;
- if (new_parent != null && new_parent.IsHandleCreated)
- parent_handle = new_parent.Handle;
- XplatUI.SetParent (Handle, parent_handle);
- }
-
- OnParentChanged(EventArgs.Empty);
- if (pre_enabled != Enabled) {
- OnEnabledChanged(EventArgs.Empty);
- }
- if (pre_visible != Visible) {
- OnVisibleChanged(EventArgs.Empty);
- }
- if (pre_font != Font) {
- OnFontChanged(EventArgs.Empty);
- }
- if (pre_fore_color != ForeColor) {
- OnForeColorChanged(EventArgs.Empty);
- }
- if (pre_back_color != BackColor) {
- OnBackColorChanged(EventArgs.Empty);
- }
- if (pre_rtl != RightToLeft) {
- // MS sneaks a OnCreateControl and OnHandleCreated in here, I guess
- // because when RTL changes they have to recreate the win32 control
- // We don't really need that (until someone runs into compatibility issues)
- OnRightToLeftChanged(EventArgs.Empty);
- }
- if ((new_parent != null) && new_parent.Created && is_visible && !Created) {
- CreateControl();
- }
- if ((binding_context == null) && Created) {
- OnBindingContextChanged(EventArgs.Empty);
- }
- }
- // Sometimes we need to do this calculation without it being virtual (constructor)
- internal Size InternalSizeFromClientSize (Size clientSize)
- {
- Rectangle ClientRect;
- Rectangle WindowRect;
- CreateParams cp;
- ClientRect = new Rectangle (0, 0, clientSize.Width, clientSize.Height);
- cp = this.CreateParams;
- if (XplatUI.CalculateWindowRect (ref ClientRect, cp, null, out WindowRect))
- return new Size (WindowRect.Width, WindowRect.Height);
- return Size.Empty;
- }
-
- internal Size ClientSizeFromSize (Size size)
- {
- // Calling this gives us the difference in Size and ClientSize.
- // We just have to apply that difference to our given size.
- Size client_size = this.InternalSizeFromClientSize (size);
-
- if (client_size == Size.Empty)
- return Size.Empty;
-
- return new Size (size.Width - (client_size.Width - size.Width), size.Height - (client_size.Height - size.Height));
- }
-
- internal CreateParams GetCreateParams ()
- {
- return CreateParams;
- }
- internal virtual Size GetPreferredSizeCore (Size proposedSize)
- {
- return this.explicit_bounds.Size;
- }
- private void UpdateDistances() {
- if (parent != null) {
- if (bounds.Width >= 0)
- dist_right = parent.ClientSize.Width - bounds.X - bounds.Width;
- if (bounds.Height >= 0)
- dist_bottom = parent.ClientSize.Height - bounds.Y - bounds.Height;
- recalculate_distances = false;
- }
- }
-
- private Cursor GetAvailableCursor ()
- {
- if (Cursor != null && Enabled) {
- return Cursor;
- }
- if (Parent != null) {
- return Parent.GetAvailableCursor ();
- }
- return Cursors.Default;
- }
-
- private void UpdateCursor ()
- {
- if (!IsHandleCreated)
- return;
-
- if (!Enabled) {
- XplatUI.SetCursor (window.Handle, GetAvailableCursor ().handle);
- return;
- }
- Point pt = PointToClient (Cursor.Position);
- if (!bounds.Contains (pt) && !Capture)
- return;
- if (cursor != null || use_wait_cursor) {
- XplatUI.SetCursor (window.Handle, Cursor.handle);
- } else {
- XplatUI.SetCursor (window.Handle, GetAvailableCursor ().handle);
- }
- }
-
- private bool UseDoubleBuffering {
- get {
- if (!ThemeEngine.Current.DoubleBufferingSupported)
- return false;
- // Since many of .Net's controls are unmanaged, they are doublebuffered
- // even though their bits may not be set in managed land. This allows
- // us to doublebuffer as well without affecting public style bits.
- if (force_double_buffer)
- return true;
-
- if (DoubleBuffered)
- return true;
- return (control_style & ControlStyles.DoubleBuffer) != 0;
- }
- }
- internal void OnSizeInitializedOrChanged ()
- {
- Form form = this as Form;
- if (form != null && form.WindowManager != null)
- ThemeEngine.Current.ManagedWindowOnSizeInitializedOrChanged (form);
- }
- #endregion // Private & Internal Methods
- #region Public Static Properties
- public static Color DefaultBackColor {
- get {
- return ThemeEngine.Current.DefaultControlBackColor;
- }
- }
- public static Font DefaultFont {
- get {
- return ThemeEngine.Current.DefaultFont;
- }
- }
- public static Color DefaultForeColor {
- get {
- return ThemeEngine.Current.DefaultControlForeColor;
- }
- }
- public static Keys ModifierKeys {
- get {
- return XplatUI.State.ModifierKeys;
- }
- }
- public static MouseButtons MouseButtons {
- get {
- return XplatUI.State.MouseButtons;
- }
- }
- public static Point MousePosition {
- get {
- return Cursor.Position;
- }
- }
-
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
- [Browsable (false)]
- [MonoTODO ("Stub, value is not used")]
- public static bool CheckForIllegalCrossThreadCalls
- {
- get {
- return verify_thread_handle;
- }
- set {
- verify_thread_handle = value;
- }
- }
- #endregion // Public Static Properties
- #region Public Instance Properties
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public AccessibleObject AccessibilityObject {
- get {
- if (accessibility_object==null) {
- accessibility_object=CreateAccessibilityInstance();
- }
- return accessibility_object;
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public string AccessibleDefaultActionDescription {
- get {
- return accessible_default_action;
- }
- set {
- accessible_default_action = value;
- }
- }
- [Localizable(true)]
- [DefaultValue(null)]
- [MWFCategory("Accessibility")]
- public string AccessibleDescription {
- get {
- return accessible_description;
- }
- set {
- accessible_description = value;
- }
- }
- [Localizable(true)]
- [DefaultValue(null)]
- [MWFCategory("Accessibility")]
- public string AccessibleName {
- get {
- return accessible_name;
- }
- set {
- accessible_name = value;
- }
- }
- [DefaultValue(AccessibleRole.Default)]
- [MWFDescription("Role of the control"), MWFCategory("Accessibility")]
- public AccessibleRole AccessibleRole {
- get {
- return accessible_role;
- }
- set {
- accessible_role = value;
- }
- }
- [DefaultValue(false)]
- [MWFCategory("Behavior")]
- public virtual bool AllowDrop {
- get {
- return allow_drop;
- }
- set {
- if (allow_drop == value)
- return;
- allow_drop = value;
- if (IsHandleCreated) {
- UpdateStyles();
- XplatUI.SetAllowDrop (Handle, value);
- }
- }
- }
- [Localizable(true)]
- [RefreshProperties(RefreshProperties.Repaint)]
- [DefaultValue(AnchorStyles.Top | AnchorStyles.Left)]
- [MWFCategory("Layout")]
- public virtual AnchorStyles Anchor {
- get {
- return anchor_style;
- }
- set {
- layout_type = LayoutType.Anchor;
- if (anchor_style == value)
- return;
-
- anchor_style=value;
- dock_style = DockStyle.None;
-
- UpdateDistances ();
- if (parent != null)
- parent.PerformLayout(this, "Anchor");
- }
- }
- [Browsable (false)]
- [DefaultValue (typeof (Point), "0, 0")]
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- public virtual Point AutoScrollOffset {
- get {
- return auto_scroll_offset;
- }
- set {
- this.auto_scroll_offset = value;
- }
- }
-
- // XXX: Implement me!
- bool auto_size;
-
- [RefreshProperties (RefreshProperties.All)]
- [Localizable (true)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
- [Browsable (false)]
- [EditorBrowsable (EditorBrowsableState.Never)]
- [DefaultValue (false)]
- public virtual bool AutoSize {
- get { return auto_size; }
- set {
- if (this.auto_size != value) {
- auto_size = value;
-
- // If we're turning this off, reset our size
- if (!value) {
- Size = explicit_bounds.Size;
- } else {
- if (Parent != null)
- Parent.PerformLayout (this, "AutoSize");
- }
- OnAutoSizeChanged (EventArgs.Empty);
- }
- }
- }
-
- [AmbientValue ("{Width=0, Height=0}")]
- [MWFCategory("Layout")]
- public virtual Size MaximumSize {
- get {
- return maximum_size;
- }
- set {
- if (maximum_size != value) {
- maximum_size = value;
- Size = PreferredSize;
- }
- }
- }
- internal bool ShouldSerializeMaximumSize ()
- {
- return this.MaximumSize != DefaultMaximumSize;
- }
- [MWFCategory("Layout")]
- public virtual Size MinimumSize {
- get {
- return minimum_size;
- }
- set {
- if (minimum_size != value) {
- minimum_size = value;
- Size = PreferredSize;
- }
- }
- }
- internal bool ShouldSerializeMinimumSize ()
- {
- return this.MinimumSize != DefaultMinimumSize;
- }
- [DispId(-501)]
- [MWFCategory("Appearance")]
- public virtual Color BackColor {
- get {
- if (background_color.IsEmpty) {
- if (parent!=null) {
- Color pcolor = parent.BackColor;
- if (pcolor.A == 0xff || GetStyle(ControlStyles.SupportsTransparentBackColor))
- return pcolor;
- }
- return DefaultBackColor;
- }
- return background_color;
- }
- set {
- if (!value.IsEmpty && (value.A != 0xff) && !GetStyle(ControlStyles.SupportsTransparentBackColor)) {
- throw new ArgumentException("Transparent background colors are not supported on this control");
- }
- if (background_color != value) {
- background_color=value;
- SetChildColor(this);
- OnBackColorChanged(EventArgs.Empty);
- Invalidate();
- }
- }
- }
- internal bool ShouldSerializeBackColor ()
- {
- return this.BackColor != DefaultBackColor;
- }
- [Localizable(true)]
- [DefaultValue(null)]
- [MWFCategory("Appearance")]
- public virtual Image BackgroundImage {
- get {
- return background_image;
- }
- set {
- if (background_image!=value) {
- background_image=value;
- OnBackgroundImageChanged(EventArgs.Empty);
- Invalidate ();
- }
- }
- }
- [DefaultValue (ImageLayout.Tile)]
- [Localizable (true)]
- [MWFCategory("Appearance")]
- public virtual ImageLayout BackgroundImageLayout {
- get {
- return backgroundimage_layout;
- }
- set {
- if (Array.IndexOf (Enum.GetValues (typeof (ImageLayout)), value) == -1)
- throw new InvalidEnumArgumentException ("value", (int) value, typeof(ImageLayout));
- if (value != backgroundimage_layout) {
- backgroundimage_layout = value;
- Invalidate ();
- OnBackgroundImageLayoutChanged (EventArgs.Empty);
- }
-
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public virtual BindingContext BindingContext {
- get {
- if (binding_context != null)
- return binding_context;
- if (Parent == null)
- return null;
- binding_context = Parent.BindingContext;
- return binding_context;
- }
- set {
- if (binding_context != value) {
- binding_context = value;
- OnBindingContextChanged(EventArgs.Empty);
- }
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public int Bottom {
- get {
- return this.bounds.Bottom;
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public Rectangle Bounds {
- get {
- return this.bounds;
- }
- set {
- SetBounds(value.Left, value.Top, value.Width, value.Height, BoundsSpecified.All);
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public bool CanFocus {
- get {
- if (IsHandleCreated && Visible && Enabled) {
- return true;
- }
- return false;
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public bool CanSelect {
- get {
- Control parent;
- if (!GetStyle(ControlStyles.Selectable)) {
- return false;
- }
- parent = this;
- while (parent != null) {
- if (!parent.is_visible || !parent.is_enabled) {
- return false;
- }
- parent = parent.parent;
- }
- return true;
- }
- }
- internal virtual bool InternalCapture {
- get {
- return Capture;
- }
- set {
- Capture = value;
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public bool Capture {
- get {
- return this.is_captured;
- }
- set {
- // Call OnMouseCaptureChanged when we get WM_CAPTURECHANGED.
- if (value != is_captured) {
- if (value) {
- is_captured = true;
- XplatUI.GrabWindow(Handle, IntPtr.Zero);
- } else {
- if (IsHandleCreated)
- XplatUI.UngrabWindow(Handle);
- is_captured = false;
- }
- }
- }
- }
- [DefaultValue(true)]
- [MWFCategory("Focus")]
- public bool CausesValidation {
- get {
- return this.causes_validation;
- }
- set {
- if (this.causes_validation != value) {
- causes_validation = value;
- OnCausesValidationChanged(EventArgs.Empty);
- }
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public Rectangle ClientRectangle {
- get {
- client_rect.Width = client_size.Width;
- client_rect.Height = client_size.Height;
- return client_rect;
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public Size ClientSize {
- get {
- #if notneeded
- if ((this is Form) && (((Form)this).form_parent_window != null)) {
- return ((Form)this).form_parent_window.ClientSize;
- }
- #endif
- return client_size;
- }
- set {
- this.SetClientSizeCore(value.Width, value.Height);
- this.OnClientSizeChanged (EventArgs.Empty);
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- [DescriptionAttribute("ControlCompanyNameDescr")]
- public String CompanyName {
- get {
- return "Mono Project, Novell, Inc.";
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public bool ContainsFocus {
- get {
- IntPtr focused_window;
- focused_window = XplatUI.GetFocus();
- if (IsHandleCreated) {
- if (focused_window == Handle) {
- return true;
- }
- for (int i=0; i < child_controls.Count; i++) {
- if (child_controls[i].ContainsFocus) {
- return true;
- }
- }
- }
- return false;
- }
- }
- [Browsable (false)]
- [DefaultValue(null)]
- [MWFCategory("Behavior")]
- public virtual ContextMenu ContextMenu {
- get {
- return ContextMenuInternal;
- }
- set {
- ContextMenuInternal = value;
- }
- }
- internal virtual ContextMenu ContextMenuInternal {
- get {
- return context_menu;
- }
- set {
- if (context_menu != value) {
- context_menu = value;
- OnContextMenuChanged (EventArgs.Empty);
- }
- }
- }
- [DefaultValue (null)]
- [MWFCategory("Behavior")]
- public virtual ContextMenuStrip ContextMenuStrip {
- get { return this.context_menu_strip; }
- set {
- if (this.context_menu_strip != value) {
- this.context_menu_strip = value;
- if (value != null)
- value.container = this;
- OnContextMenuStripChanged (EventArgs.Empty);
- }
- }
- }
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
- public ControlCollection Controls {
- get {
- return this.child_controls;
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public bool Created {
- get {
- return (!is_disposed && is_created);
- }
- }
-
- [AmbientValue(null)]
- [MWFCategory("Appearance")]
- public virtual Cursor Cursor {
- get {
- if (use_wait_cursor)
- return Cursors.WaitCursor;
- if (cursor != null) {
- return cursor;
- }
- if (parent != null) {
- return parent.Cursor;
- }
- return Cursors.Default;
- }
- set {
- if (cursor == value) {
- return;
- }
- cursor = value;
- UpdateCursor ();
- OnCursorChanged (EventArgs.Empty);
- }
- }
- internal bool ShouldSerializeCursor ()
- {
- return this.Cursor != Cursors.Default;
- }
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
- [ParenthesizePropertyName(true)]
- [RefreshProperties(RefreshProperties.All)]
- [MWFCategory("Data")]
- public ControlBindingsCollection DataBindings {
- get {
- if (data_bindings == null)
- data_bindings = new ControlBindingsCollection (this);
- return data_bindings;
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public virtual Rectangle DisplayRectangle {
- get {
- // for the control class the DisplayRectangle == ClientRectangle
- return ClientRectangle;
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public bool Disposing {
- get {
- return is_disposed;
- }
- }
- [Localizable(true)]
- [RefreshProperties(RefreshProperties.Repaint)]
- [DefaultValue(DockStyle.None)]
- [MWFCategory("Layout")]
- public virtual DockStyle Dock {
- get {
- return dock_style;
- }
- set {
- // If the user sets this to None, we need to still use Anchor layout
- if (value != DockStyle.None)
- layout_type = LayoutType.Dock;
- if (dock_style == value) {
- return;
- }
- if (!Enum.IsDefined (typeof (DockStyle), value)) {
- throw new InvalidEnumArgumentException ("value", (int) value,
- typeof (DockStyle));
- }
- dock_style = value;
- anchor_style = AnchorStyles.Top | AnchorStyles.Left;
- if (dock_style == DockStyle.None) {
- bounds = explicit_bounds;
- layout_type = LayoutType.Anchor;
- }
- if (parent != null)
- parent.PerformLayout(this, "Dock");
- else if (Controls.Count > 0)
- PerformLayout ();
- OnDockChanged(EventArgs.Empty);
- }
- }
- protected virtual bool DoubleBuffered {
- get {
- return (control_style & ControlStyles.OptimizedDoubleBuffer) != 0;
- }
- set {
- if (value == DoubleBuffered)
- return;
- if (value) {
- SetStyle (ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint, true);
- } else {
- SetStyle (ControlStyles.OptimizedDoubleBuffer, false);
- }
-
- }
- }
-
- public void DrawToBitmap (Bitmap bitmap, Rectangle targetBounds)
- {
- Graphics g = Graphics.FromImage (bitmap);
-
- // Only draw within the target bouds, and up to the size of the control
- g.IntersectClip (targetBounds);
- g.IntersectClip (Bounds);
-
- // Logic copied from WmPaint
- PaintEventArgs pea = new PaintEventArgs (g, targetBounds);
-
- if (!GetStyle (ControlStyles.Opaque))
- OnPaintBackground (pea);
- OnPaintBackgroundInternal (pea);
- OnPaintInternal (pea);
- if (!pea.Handled)
- OnPaint (pea);
-
- g.Dispose ();
- }
-
- [DispId(-514)]
- [Localizable(true)]
- [MWFCategory("Behavior")]
- public bool Enabled {
- get {
- if (!is_enabled) {
- return false;
- }
- if (parent != null) {
- return parent.Enabled;
- }
- return true;
- }
- set {
- if (this.is_enabled == value)
- return;
- bool old_value = is_enabled;
- is_enabled = value;
- if (!value)
- UpdateCursor ();
- if (old_value != value && !value && this.has_focus)
- SelectNextControl(this, true, true, true, true);
- OnEnabledChanged (EventArgs.Empty);
- }
- }
- internal bool ShouldSerializeEnabled ()
- {
- return this.Enabled != true;
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public virtual bool Focused {
- get {
- return this.has_focus;
- }
- }
- [DispId(-512)]
- [AmbientValue(null)]
- [Localizable(true)]
- [MWFCategory("Appearance")]
- public virtual Font Font {
- [return: MarshalAs (UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof (Font))]
- get {
- if (font != null)
- return font;
- if (parent != null) {
- Font f = parent.Font;
-
- if (f != null)
- return f;
- }
- return DefaultFont;
- }
- [param:MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef=typeof(Font))]
- set {
- if (font != null && font == value) {
- return;
- }
- font = value;
- Invalidate();
- OnFontChanged (EventArgs.Empty);
- PerformLayout ();
- }
- }
- internal bool ShouldSerializeFont ()
- {
- return !this.Font.Equals (DefaultFont);
- }
- [DispId(-513)]
- [MWFCategory("Appearance")]
- public virtual Color ForeColor {
- get {
- if (foreground_color.IsEmpty) {
- if (parent!=null) {
- return parent.ForeColor;
- }
- return DefaultForeColor;
- }
- return foreground_color;
- }
- set {
- if (foreground_color != value) {
- foreground_color=value;
- Invalidate();
- OnForeColorChanged(EventArgs.Empty);
- }
- }
- }
- internal bool ShouldSerializeForeColor ()
- {
- return this.ForeColor != DefaultForeColor;
- }
- [DispId(-515)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public IntPtr Handle { // IWin32Window
- get {
- if (verify_thread_handle) {
- if (this.InvokeRequired) {
- throw new InvalidOperationException("Cross-thread access of handle detected. Handle access only valid on thread that created the control");
- }
- }
- if (!IsHandleCreated) {
- CreateHandle();
- }
- return window.Handle;
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public bool HasChildren {
- get {
- if (this.child_controls.Count>0) {
- return true;
- }
- return false;
- }
- }
- [EditorBrowsable(EditorBrowsableState.Always)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public int Height {
- get { return this.bounds.Height; }
- set { SetBounds(bounds.X, bounds.Y, bounds.Width, value, BoundsSpecified.Height); }
- }
-
- [AmbientValue(ImeMode.Inherit)]
- [Localizable(true)]
- [MWFCategory("Behavior")]
- public ImeMode ImeMode {
- get {
- if (ime_mode == ImeMode.Inherit) {
- if (parent != null)
- return parent.ImeMode;
- else
- return ImeMode.NoControl; // default value
- }
- return ime_mode;
- }
- set {
- if (ime_mode != value) {
- ime_mode = value;
- OnImeModeChanged(EventArgs.Empty);
- }
- }
- }
- internal bool ShouldSerializeImeMode ()
- {
- return this.ImeMode != ImeMode.NoControl;
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public bool InvokeRequired { // ISynchronizeInvoke
- get {
- if (creator_thread != null && creator_thread!=Thread.CurrentThread) {
- return true;
- }
- return false;
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public bool IsAccessible {
- get {
- return is_accessible;
- }
- set {
- is_accessible = value;
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public bool IsDisposed {
- get {
- return this.is_disposed;
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public bool IsHandleCreated {
- get {
- if (window == null || window.Handle == IntPtr.Zero)
- return false;
- Hwnd hwnd = Hwnd.ObjectFromHandle (window.Handle);
- if (hwnd != null && hwnd.zombie)
- return false;
- return true;
- }
- }
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [MonoNotSupported ("RTL is not supported")]
- public bool IsMirrored {
- get { return false; }
- }
- [Browsable (false)]
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- public virtual Layout.LayoutEngine LayoutEngine {
- get {
- if (layout_engine == null)
- layout_engine = new Layout.DefaultLayout ();
- return layout_engine;
- }
- }
- [EditorBrowsable(EditorBrowsableState.Always)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public int Left {
- get {
- return this.bounds.Left;
- }
- set {
- SetBounds(value, bounds.Y, bounds.Width, bounds.Height, BoundsSpecified.X);
- }
- }
- [Localizable(true)]
- [MWFCategory("Layout")]
- public Point Location {
- get {
- return this.bounds.Location;
- }
- set {
- SetBounds(value.X, value.Y, bounds.Width, bounds.Height, BoundsSpecified.Location);
- }
- }
- internal bool ShouldSerializeLocation ()
- {
- return this.Location != new Point (0, 0);
- }
- [Localizable (true)]
- [MWFCategory("Layout")]
- public Padding Margin {
- get { return this.margin; }
- set {
- if (this.margin != value) {
- this.margin = value;
- if (Parent != null)
- Parent.PerformLayout (this, "Margin");
- OnMarginChanged (EventArgs.Empty);
- }
- }
- }
- internal bool ShouldSerializeMargin ()
- {
- return this.Margin != DefaultMargin;
- }
- [Browsable(false)]
- public string Name {
- get {
- return name;
- }
- set {
- name = value;
- }
- }
- [Localizable(true)]
- [MWFCategory("Layout")]
- public Padding Padding {
- get {
- return padding;
- }
- set {
- if (padding != value) {
- padding = value;
- OnPaddingChanged (EventArgs.Empty);
-
- // Changing padding generally requires a new size
- if (this.AutoSize && this.Parent != null)
- parent.PerformLayout (this, "Padding");
- else
- PerformLayout (this, "Padding");
- }
- }
- }
- internal bool ShouldSerializePadding ()
- {
- return this.Padding != DefaultPadding;
- }
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public Control Parent {
- get {
- return this.parent;
- }
- set {
- if (value == this) {
- throw new ArgumentException("A circular control reference has been made. A control cannot be owned or parented to itself.");
- }
- if (parent!=value) {
- if (value==null) {
- parent.Controls.Remove(this);
- parent = null;
- return;
- }
- value.Controls.Add(this);
- }
- }
- }
- [Browsable (false)]
- public Size PreferredSize {
- get { return this.GetPreferredSize (Size.Empty); }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public string ProductName {
- get {
- Type t = typeof (AssemblyProductAttribute);
- Assembly assembly = GetType().Module.Assembly;
- object [] attrs = assembly.GetCustomAttributes (t, false);
- AssemblyProductAttribute a = null;
- // On MS we get a NullRefException if product attribute is not
- // set.
- if (attrs != null && attrs.Length > 0)
- a = (AssemblyProductAttribute) attrs [0];
- if (a == null) {
- return GetType ().Namespace;
- }
- return a.Product;
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public string ProductVersion {
- get {
- Type t = typeof (AssemblyVersionAttribute);
- Assembly assembly = GetType().Module.Assembly;
- object [] attrs = assembly.GetCustomAttributes (t, false);
- if (attrs == null || attrs.Length < 1)
- return "1.0.0.0";
- return ((AssemblyVersionAttribute)attrs [0]).Version;
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public bool RecreatingHandle {
- get {
- return is_recreating;
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public Region Region {
- get {
- return clip_region;
- }
- set {
- if (clip_region != value) {
- if (IsHandleCreated)
- XplatUI.SetClipRegion(Handle, value);
- clip_region = value;
-
- OnRegionChanged (EventArgs.Empty);
- }
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public int Right {
- get {
- return this.bounds.Right;
- }
- }
- [AmbientValue(RightToLeft.Inherit)]
- [Localizable(true)]
- [MWFCategory("Appearance")]
- public virtual RightToLeft RightToLeft {
- get {
- if (right_to_left == RightToLeft.Inherit) {
- if (parent != null)
- return parent.RightToLeft;
- else
- return RightToLeft.No; // default value
- }
- return right_to_left;
- }
- set {
- if (value != right_to_left) {
- right_to_left = value;
- OnRightToLeftChanged(EventArgs.Empty);
- PerformLayout ();
- }
- }
- }
- internal bool ShouldSerializeRightToLeft ()
- {
- return this.RightToLeft != RightToLeft.No;
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- public override ISite Site {
- get {
- return base.Site;
- }
- set {
- base.Site = value;
- if (value != null) {
- AmbientProperties ap = (AmbientProperties) value.GetService (typeof (AmbientProperties));
- if (ap != null) {
- BackColor = ap.BackColor;
- ForeColor = ap.ForeColor;
- Cursor = ap.Cursor;
- Font = ap.Font;
- }
- }
- }
- }
- internal bool ShouldSerializeSite ()
- {
- return false;
- }
- [Localizable(true)]
- [MWFCategory("Layout")]
- public Size Size {
- get {
- return new Size(Width, Height);
- }
- set {
- SetBounds(bounds.X, bounds.Y, value.Width, value.Height, BoundsSpecified.Size);
- }
- }
- internal virtual bool ShouldSerializeSize ()
- {
- return this.Size != DefaultSize;
- }
- [Localizable(true)]
- [MergableProperty(false)]
- [MWFCategory("Behavior")]
- public int TabIndex {
- get {
- if (tab_index != -1) {
- return tab_index;
- }
- return 0;
- }
- set {
- if (tab_index != value) {
- tab_index = value;
- OnTabIndexChanged(EventArgs.Empty);
- }
- }
- }
- [DispId(-516)]
- [DefaultValue(true)]
- [MWFCategory("Behavior")]
- public bool TabStop {
- get {
- return tab_stop;
- }
- set {
- if (tab_stop != value) {
- tab_stop = value;
- OnTabStopChanged(EventArgs.Empty);
- }
- }
- }
- [Localizable(false)]
- [Bindable(true)]
- [TypeConverter(typeof(StringConverter))]
- [DefaultValue(null)]
- [MWFCategory("Data")]
- public object Tag {
- get {
- return control_tag;
- }
- set {
- control_tag = value;
- }
- }
- [DispId(-517)]
- [Localizable(true)]
- [BindableAttribute(true)]
- [MWFCategory("Appearance")]
- public virtual string Text {
- get {
- // Our implementation ignores ControlStyles.CacheText - we always cache
- return this.text;
- }
- set {
- if (value == null) {
- value = String.Empty;
- }
- if (text!=value) {
- text=value;
- UpdateWindowText ();
- OnTextChanged (EventArgs.Empty);
- // Label has its own AutoSize implementation
- if (AutoSize && Parent != null && (!(this is Label)))
- Parent.PerformLayout (this, "Text");
- }
- }
- }
- internal virtual void UpdateWindowText ()
- {
- if (!IsHandleCreated) {
- return;
- }
- XplatUI.Text (Handle, text);
- }
- [EditorBrowsable(EditorBrowsableState.Always)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public int Top {
- get {
- return this.bounds.Top;
- }
- set {
- SetBounds(bounds.X, value, bounds.Width, bounds.Height, BoundsSpecified.Y);
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public Control TopLevelControl {
- get {
- Control p = this;
- while (p.parent != null) {
- p = p.parent;
- }
- return p is Form ? p : null;
- }
- }
- [EditorBrowsable(EditorBrowsableState.Always)]
- [Browsable(true)]
- [DefaultValue (false)]
- [MWFCategory("Appearance")]
- public bool UseWaitCursor {
- get { return use_wait_cursor; }
- set {
- if (use_wait_cursor != value) {
- use_wait_cursor = value;
- UpdateCursor ();
- OnCursorChanged (EventArgs.Empty);
- }
- }
- }
- [Localizable(true)]
- [MWFCategory("Behavior")]
- public bool Visible {
- get {
- if (!is_visible) {
- return false;
- } else if (parent != null) {
- return parent.Visible;
- }
- return true;
- }
- set {
- if (this.is_visible != value) {
- SetVisibleCore(value);
- if (parent != null)
- parent.PerformLayout (this, "Visible");
- }
- }
- }
- internal bool ShouldSerializeVisible ()
- {
- return this.Visible != true;
- }
- [EditorBrowsable(EditorBrowsableState.Always)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public int Width {
- get {
- return this.bounds.Width;
- }
- set {
- SetBounds(bounds.X, bounds.Y, value, bounds.Height, BoundsSpecified.Width);
- }
- }
- [EditorBrowsable(EditorBrowsableState.Never)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- public IWindowTarget WindowTarget {
- get { return window_target; }
- set { window_target = value; }
- }
- #endregion // Public Instance Properties
- #region Protected Instance Properties
- protected virtual bool CanEnableIme {
- get { return false; }
- }
-
- // Is only false in some ActiveX contexts
- protected override bool CanRaiseEvents {
- get { return true; }
- }
- protected virtual CreateParams CreateParams {
- get {
- CreateParams create_params = new CreateParams();
- try {
- create_params.Caption = Text;
- }
- catch {
- create_params.Caption = text;
- }
- try {
- create_params.X = Left;
- }
- catch {
- create_params.X = this.bounds.X;
- }
- try {
- create_params.Y = Top;
- }
- catch {
- create_params.Y = this.bounds.Y;
- }
- try {
- create_params.Width = Width;
- }
- catch {
- create_params.Width = this.bounds.Width;
- }
- try {
- create_params.Height = Height;
- }
- catch {
- create_params.Height = this.bounds.Height;
- }
- create_params.ClassName = XplatUI.GetDefaultClassName (GetType ());
- create_params.ClassStyle = (int)(XplatUIWin32.ClassStyle.CS_OWNDC | XplatUIWin32.ClassStyle.CS_DBLCLKS);
- create_params.ExStyle = 0;
- create_params.Param = 0;
- if (allow_drop) {
- create_params.ExStyle |= (int)WindowExStyles.WS_EX_ACCEPTFILES;
- }
- if ((parent!=null) && (parent.IsHandleCreated)) {
- create_params.Parent = parent.Handle;
- }
- create_params.Style = (int)WindowStyles.WS_CHILD | (int)WindowStyles.WS_CLIPCHILDREN | (int)WindowStyles.WS_CLIPSIBLINGS;
- if (is_visible) {
- create_params.Style |= (int)WindowStyles.WS_VISIBLE;
- }
- if (!is_enabled) {
- create_params.Style |= (int)WindowStyles.WS_DISABLED;
- }
- switch (border_style) {
- case BorderStyle.FixedSingle:
- create_params.Style |= (int) WindowStyles.WS_BORDER;
- break;
- case BorderStyle.Fixed3D:
- create_params.ExStyle |= (int) WindowExStyles.WS_EX_CLIENTEDGE;
- break;
- }
-
- create_params.control = this;
- return create_params;
- }
- }
- protected virtual Cursor DefaultCursor { get { return Cursors.Default; } }
- protected virtual ImeMode DefaultImeMode {
- get {
- return ImeMode.Inherit;
- }
- }
- protected virtual Padding DefaultMargin {
- get { return new Padding (3); }
- }
-
- protected virtual Size DefaultMaximumSize { get { return new Size (); } }
- protected virtual Size DefaultMinimumSize { get { return new Size (); } }
- protected virtual Padding DefaultPadding { get { return new Padding (); } }
- protected virtual Size DefaultSize {
- get {
- return new Size(0, 0);
- }
- }
- protected int FontHeight {
- get {
- return Font.Height;
- }
- set {
- ;; // Nothing to do
- }
- }
- [Obsolete ()]
- protected bool RenderRightToLeft {
- get {
- return (this.right_to_left == RightToLeft.Yes);
- }
- }
- protected bool ResizeRedraw {
- get {
- return GetStyle(ControlStyles.ResizeRedraw);
- }
- set {
- SetStyle(ControlStyles.ResizeRedraw, value);
- }
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- protected virtual bool ScaleChildren {
- get { return ScaleChildrenInternal; }
- }
- internal virtual bool ScaleChildrenInternal {
- get { return true; }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- protected internal virtual bool ShowFocusCues {
- get {
- if (this is Form)
- return show_focus_cues;
-
- if (this.parent == null)
- return false;
-
- Form f = this.FindForm ();
-
- if (f != null)
- return f.show_focus_cues;
-
- return false;
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
- internal virtual protected bool ShowKeyboardCues {
- get {
- return ShowKeyboardCuesInternal;
- }
- }
- internal bool ShowKeyboardCuesInternal {
- get {
- if (SystemInformation.MenuAccessKeysUnderlined || DesignMode)
- return true;
- return show_keyboard_cues;
- }
- }
- #endregion // Protected Instance Properties
- #region Public Static Methods
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- public static Control FromChildHandle(IntPtr handle) {
- return Control.ControlNativeWindow.ControlFromChildHandle (handle);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- public static Control FromHandle(IntPtr handle) {
- return Control.ControlNativeWindow.ControlFromHandle(handle);
- }
- [MonoTODO ("Only implemented for Win32, others always return false")]
- public static bool IsKeyLocked (Keys keyVal)
- {
- switch (keyVal) {
- case Keys.CapsLock:
- case Keys.NumLock:
- case Keys.Scroll:
- return XplatUI.IsKeyLocked ((VirtualKeys)keyVal);
- default:
- throw new NotSupportedException ("keyVal must be CapsLock, NumLock, or ScrollLock");
- }
- }
- public static bool IsMnemonic(char charCode, string text) {
- int amp;
- amp = text.IndexOf('&');
- if (amp != -1) {
- if (amp + 1 < text.Length) {
- if (text[amp + 1] != '&') {
- if (Char.ToUpper(charCode) == Char.ToUpper(text.ToCharArray(amp + 1, 1)[0])) {
- return true;
- }
- }
- }
- }
- return false;
- }
- #endregion
- #region Protected Static Methods
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected static bool ReflectMessage(IntPtr hWnd, ref Message m) {
- Control c;
- c = Control.FromHandle(hWnd);
- if (c != null) {
- c.WndProc(ref m);
- return true;
- }
- return false;
- }
- #endregion
- #region Public Instance Methods
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- public IAsyncResult BeginInvoke(Delegate method) {
- object [] prms = null;
- if (method is EventHandler)
- prms = new object [] { this, EventArgs.Empty };
- return BeginInvokeInternal(method, prms);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- public IAsyncResult BeginInvoke (Delegate method, params object[] args)
- {
- return BeginInvokeInternal (method, args);
- }
- public void BringToFront() {
- if (parent != null) {
- parent.child_controls.SetChildIndex(this, 0);
- }
- else if (IsHandleCreated) {
- XplatUI.SetZOrder(Handle, IntPtr.Zero, false, false);
- }
- }
- public bool Contains(Control ctl) {
- while (ctl != null) {
- ctl = ctl.parent;
- if (ctl == this) {
- return true;
- }
- }
- return false;
- }
- public void CreateControl () {
- if (is_created) {
- return;
- }
- if (is_disposing) {
- return;
- }
- if (!is_visible) {
- return;
- }
-
- if (parent != null && !parent.Created) {
- return;
- }
- if (!IsHandleCreated) {
- CreateHandle();
- }
- if (!is_created) {
- is_created = true;
- // Create all of our children (implicit ones as well) when we are created.
- // The child should fire it's OnLoad before the parents, however
- // if the child checks Parent.Created in it's OnCreateControl, the
- // parent is already created.
- foreach (Control c in Controls.GetAllControls ())
- if (!c.Created && !c.IsDisposed)
- c.CreateControl ();
-
- OnCreateControl();
- }
- }
- public Graphics CreateGraphics() {
- if (!IsHandleCreated) {
- this.CreateHandle();
- }
- return Graphics.FromHwnd(this.window.Handle);
- }
- public DragDropEffects DoDragDrop(object data, DragDropEffects allowedEffects) {
- DragDropEffects result = DragDropEffects.None;
- if (IsHandleCreated)
- result = XplatUI.StartDrag(Handle, data, allowedEffects);
- OnDragDropEnd (result);
- return result;
- }
- internal virtual void OnDragDropEnd (DragDropEffects effects)
- {
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- public object EndInvoke (IAsyncResult asyncResult) {
- AsyncMethodResult result = (AsyncMethodResult) asyncResult;
- return result.EndInvoke ();
- }
- internal Control FindRootParent ()
- {
- Control c = this;
-
- while (c.Parent != null)
- c = c.Parent;
- return c;
- }
- public Form FindForm() {
- Control c;
- c = this;
- while (c != null) {
- if (c is Form) {
- return (Form)c;
- }
- c = c.Parent;
- }
- return null;
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- public bool Focus() {
- return FocusInternal (false);
- }
- internal virtual bool FocusInternal (bool skip_check) {
- if (skip_check || (CanFocus && IsHandleCreated && !has_focus && !is_focusing)) {
- is_focusing = true;
- Select(this);
- is_focusing = false;
- }
- return has_focus;
- }
- internal Control GetRealChildAtPoint (Point pt) {
- if (!IsHandleCreated)
- CreateHandle ();
- foreach (Control control in child_controls.GetAllControls ()) {
- if (control.Bounds.Contains (PointToClient (pt))) {
- Control child = control.GetRealChildAtPoint (pt);
- if (child == null)
- return control;
- else
- return child;
- }
- }
- return null;
- }
- public Control GetChildAtPoint(Point pt)
- {
- return GetChildAtPoint (pt, GetChildAtPointSkip.None);
- }
- public Control GetChildAtPoint (Point pt, GetChildAtPointSkip skipValue)
- {
- // MS's version causes the handle to be created. The stack trace shows that get_Handle is called here, but
- // we'll just call CreateHandle instead.
- if (!IsHandleCreated)
- CreateHandle ();
- // Microsoft's version of this function doesn't seem to work, so I can't check
- // if we only consider children or also grandchildren, etc.
- // I'm gonna say 'children only'
- foreach (Control child in Controls) {
- if ((skipValue & GetChildAtPointSkip.Disabled) == GetChildAtPointSkip.Disabled && !child.Enabled)
- continue;
- else if ((skipValue & GetChildAtPointSkip.Invisible) == GetChildAtPointSkip.Invisible && !child.Visible)
- continue;
- else if ((skipValue & GetChildAtPointSkip.Transparent) == GetChildAtPointSkip.Transparent && child.BackColor.A == 0x0)
- continue;
- else if (child.Bounds.Contains (pt))
- return child;
- }
- return null;
- }
- public IContainerControl GetContainerControl() {
- Control current = this;
- while (current!=null) {
- if ((current is IContainerControl) && ((current.control_style & ControlStyles.ContainerControl)!=0)) {
- return (IContainerControl)current;
- }
- current = current.parent;
- }
- return null;
- }
- internal ContainerControl InternalGetContainerControl() {
- Control current = this;
- while (current!=null) {
- if ((current is ContainerControl) && ((current.control_style & ControlStyles.ContainerControl)!=0)) {
- return current as ContainerControl;
- }
- current = current.parent;
- }
- return null;
- }
- public Control GetNextControl(Control ctl, bool forward) {
- if (!this.Contains(ctl)) {
- ctl = this;
- }
- if (forward) {
- ctl = FindControlForward(this, ctl);
- }
- else {
- ctl = FindControlBackward(this, ctl);
- }
- if (ctl != this) {
- return ctl;
- }
- return null;
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- public virtual Size GetPreferredSize (Size proposedSize) {
- Size retsize = GetPreferredSizeCore (proposedSize);
-
- // If we're bigger than the MaximumSize, fix that
- if (this.maximum_size.Width != 0 && retsize.Width > this.maximum_size.Width)
- retsize.Width = this.maximum_size.Width;
- if (this.maximum_size.Height != 0 && retsize.Height > this.maximum_size.Height)
- retsize.Height = this.maximum_size.Height;
-
- // If we're smaller than the MinimumSize, fix that
- if (this.minimum_size.Width != 0 && retsize.Width < this.minimum_size.Width)
- retsize.Width = this.minimum_size.Width;
- if (this.minimum_size.Height != 0 && retsize.Height < this.minimum_size.Height)
- retsize.Height = this.minimum_size.Height;
-
- return retsize;
- }
- public void Hide() {
- this.Visible = false;
- }
- public void Invalidate ()
- {
- Invalidate (ClientRectangle, false);
- }
- public void Invalidate (bool invalidateChildren)
- {
- Invalidate (ClientRectangle, invalidateChildren);
- }
- public void Invalidate (Rectangle rc)
- {
- Invalidate (rc, false);
- }
- public void Invalidate (Rectangle rc, bool invalidateChildren)
- {
- // Win32 invalidates control including when Width and Height is equal 0
- // or is not visible, only Paint event must be care about this.
- if (!IsHandleCreated)
- return;
- if (rc.IsEmpty)
- rc = ClientRectangle;
-
- if (rc.Width > 0 && rc.Height > 0) {
- NotifyInvalidate(rc);
- XplatUI.Invalidate(Handle, rc, false);
- if (invalidateChildren) {
- Control [] controls = child_controls.GetAllControls ();
- for (int i=0; i<controls.Length; i++)
- controls [i].Invalidate ();
- } else {
- // If any of our children are transparent, we
- // have to invalidate them anyways
- foreach (Control c in Controls)
- if (c.BackColor.A != 255)
- c.Invalidate ();
- }
- }
- OnInvalidated(new InvalidateEventArgs(rc));
- }
- public void Invalidate (Region region)
- {
- Invalidate (region, false);
- }
- public void Invalidate (Region region, bool invalidateChildren)
- {
- using (Graphics g = CreateGraphics ()){
- RectangleF bounds = region.GetBounds (g);
- Invalidate (new Rectangle ((int) bounds.X, (int) bounds.Y, (int) bounds.Width, (int) bounds.Height), invalidateChildren);
- }
- }
- public object Invoke (Delegate method) {
- object [] prms = null;
- if (method is EventHandler)
- prms = new object [] { this, EventArgs.Empty };
- return Invoke(method, prms);
- }
- public object Invoke (Delegate method, params object [] args) {
- Control control = FindControlToInvokeOn ();
-
- if (!this.InvokeRequired) {
- return method.DynamicInvoke(args);
- }
- IAsyncResult result = BeginInvokeInternal (method, args, control);
- return EndInvoke(result);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- public void PerformLayout() {
- PerformLayout(null, null);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- public void PerformLayout(Control affectedControl, string affectedProperty) {
- LayoutEventArgs levent = new LayoutEventArgs(affectedControl, affectedProperty);
- foreach (Control c in Controls.GetAllControls ())
- if (c.recalculate_distances)
- c.UpdateDistances ();
- if (layout_suspended > 0) {
- layout_pending = true;
- return;
- }
-
- layout_pending = false;
- // Prevent us from getting messed up
- layout_suspended++;
- // Perform all Dock and Anchor calculations
- try {
- OnLayout(levent);
- }
- // Need to make sure we decremend layout_suspended
- finally {
- layout_suspended--;
- }
- }
- public Point PointToClient (Point p) {
- int x = p.X;
- int y = p.Y;
- XplatUI.ScreenToClient (Handle, ref x, ref y);
- return new Point (x, y);
- }
- public Point PointToScreen(Point p) {
- int x = p.X;
- int y = p.Y;
- XplatUI.ClientToScreen(Handle, ref x, ref y);
- return new Point(x, y);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- public PreProcessControlState PreProcessControlMessage (ref Message msg)
- {
- return PreProcessControlMessageInternal (ref msg);
- }
- internal PreProcessControlState PreProcessControlMessageInternal (ref Message msg)
- {
- switch ((Msg)msg.Msg) {
- case Msg.WM_KEYDOWN:
- case Msg.WM_SYSKEYDOWN:
- PreviewKeyDownEventArgs e = new PreviewKeyDownEventArgs ((Keys)msg.WParam.ToInt32 () | XplatUI.State.ModifierKeys);
- OnPreviewKeyDown (e);
-
- if (e.IsInputKey)
- return PreProcessControlState.MessageNeeded;
-
- if (PreProcessMessage (ref msg))
- return PreProcessControlState.MessageProcessed;
- if (IsInputKey ((Keys)msg.WParam.ToInt32 () | XplatUI.State.ModifierKeys))
- return PreProcessControlState.MessageNeeded;
-
- break;
- case Msg.WM_CHAR:
- case Msg.WM_SYSCHAR:
- if (PreProcessMessage (ref msg))
- return PreProcessControlState.MessageProcessed;
-
- if (IsInputChar ((char)msg.WParam))
- return PreProcessControlState.MessageNeeded;
-
- break;
- default:
- break;
- }
-
- return PreProcessControlState.MessageNotNeeded;
- }
-
- public virtual bool PreProcessMessage (ref Message msg)
- {
- return InternalPreProcessMessage (ref msg);
- }
- internal virtual bool InternalPreProcessMessage (ref Message msg) {
- Keys key_data;
- if ((msg.Msg == (int)Msg.WM_KEYDOWN) || (msg.Msg == (int)Msg.WM_SYSKEYDOWN)) {
- key_data = (Keys)msg.WParam.ToInt32() | XplatUI.State.ModifierKeys;
- if (!ProcessCmdKey(ref msg, key_data)) {
- if (IsInputKey(key_data)) {
- return false;
- }
- return ProcessDialogKey(key_data);
- }
- return true;
- } else if (msg.Msg == (int)Msg.WM_CHAR) {
- if (IsInputChar((char)msg.WParam)) {
- return false;
- }
- return ProcessDialogChar((char)msg.WParam);
- } else if (msg.Msg == (int)Msg.WM_SYSCHAR) {
- if (ProcessDialogChar((char)msg.WParam))
- return true;
- else
- return ToolStripManager.ProcessMenuKey (ref msg);
- }
- return false;
- }
- public Rectangle RectangleToClient(Rectangle r) {
- return new Rectangle(PointToClient(r.Location), r.Size);
- }
- public Rectangle RectangleToScreen(Rectangle r) {
- return new Rectangle(PointToScreen(r.Location), r.Size);
- }
- public virtual void Refresh() {
- if (IsHandleCreated && Visible) {
- Invalidate(true);
- Update ();
- }
- }
- [EditorBrowsable(EditorBrowsableState.Never)]
- public virtual void ResetBackColor() {
- BackColor = Color.Empty;
- }
- [EditorBrowsable(EditorBrowsableState.Never)]
- public void ResetBindings() {
- if (data_bindings != null)
- data_bindings.Clear();
- }
- [EditorBrowsable(EditorBrowsableState.Never)]
- public virtual void ResetCursor() {
- Cursor = null;
- }
- [EditorBrowsable(EditorBrowsableState.Never)]
- public virtual void ResetFont() {
- font = null;
- }
- [EditorBrowsable(EditorBrowsableState.Never)]
- public virtual void ResetForeColor() {
- foreground_color = Color.Empty;
- }
- [EditorBrowsable(EditorBrowsableState.Never)]
- public void ResetImeMode() {
- ime_mode = DefaultImeMode;
- }
- [EditorBrowsable(EditorBrowsableState.Never)]
- public virtual void ResetRightToLeft() {
- right_to_left = RightToLeft.Inherit;
- }
- public virtual void ResetText() {
- Text = String.Empty;
- }
- public void ResumeLayout() {
- ResumeLayout (true);
- }
- public void ResumeLayout(bool performLayout) {
- if (layout_suspended > 0) {
- layout_suspended--;
- }
- if (layout_suspended == 0) {
- if (this is ContainerControl)
- (this as ContainerControl).PerformDelayedAutoScale();
- if (!performLayout)
- foreach (Control c in Controls.GetAllControls ())
- c.UpdateDistances ();
- if (performLayout && layout_pending) {
- PerformLayout();
- }
- }
- }
- [EditorBrowsable (EditorBrowsableState.Never)]
- [Obsolete ()]
- public void Scale(float ratio) {
- ScaleCore(ratio, ratio);
- }
-
- [EditorBrowsable (EditorBrowsableState.Never)]
- [Obsolete ()]
- public void Scale(float dx, float dy) {
- ScaleCore(dx, dy);
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- public void Scale (SizeF factor)
- {
- BoundsSpecified bounds_spec = BoundsSpecified.All;
- SuspendLayout ();
- if (this is ContainerControl) {
- if ((this as ContainerControl).IsAutoScaling)
- bounds_spec = BoundsSpecified.Size;
- else if (IsContainerAutoScaling (this.Parent))
- bounds_spec = BoundsSpecified.Location;
- }
- ScaleControl (factor, bounds_spec);
- // Scale children
- if ((bounds_spec != BoundsSpecified.Location) && ScaleChildren) {
- foreach (Control c in Controls.GetAllControls ()) {
- c.Scale (factor);
- if (c is ContainerControl) {
- ContainerControl cc = c as ContainerControl;
- if ((cc.AutoScaleMode == AutoScaleMode.Inherit) && IsContainerAutoScaling (this))
- cc.PerformAutoScale (true);
- }
- }
- }
- ResumeLayout ();
- }
- internal ContainerControl FindContainer (Control c)
- {
- while ((c != null) && !(c is ContainerControl))
- c = c.Parent;
- return c as ContainerControl;
- }
- private bool IsContainerAutoScaling (Control c)
- {
- ContainerControl cc = FindContainer (c);
- return (cc != null) && cc.IsAutoScaling;
- }
- public void Select() {
- Select(false, false);
- }
- #if DebugFocus
- private void printTree(Control c, string t) {
- foreach(Control i in c.child_controls) {
- Console.WriteLine ("{2}{0}.TabIndex={1}", i, i.tab_index, t);
- printTree (i, t+"\t");
- }
- }
- #endif
- public bool SelectNextControl(Control ctl, bool forward, bool tabStopOnly, bool nested, bool wrap) {
- Control c;
- #if DebugFocus
- Console.WriteLine("{0}", this.FindForm());
- printTree(this, "\t");
- #endif
- if (!this.Contains(ctl) || (!nested && (ctl.parent != this))) {
- ctl = null;
- }
- c = ctl;
- do {
- c = GetNextControl(c, forward);
- if (c == null) {
- if (wrap) {
- wrap = false;
- continue;
- }
- break;
- }
- #if DebugFocus
- Console.WriteLine("{0} {1}", c, c.CanSelect);
- #endif
- if (c.CanSelect && ((c.parent == this) || nested) && (c.tab_stop || !tabStopOnly)) {
- c.Select (true, true);
- return true;
- }
- } while (c != ctl); // If we wrap back to ourselves we stop
- return false;
- }
- public void SendToBack() {
- if (parent != null) {
- parent.child_controls.SetChildIndex(this, parent.child_controls.Count);
- }
- }
- public void SetBounds(int x, int y, int width, int height) {
- SetBounds(x, y, width, height, BoundsSpecified.All);
- }
- public void SetBounds(int x, int y, int width, int height, BoundsSpecified specified) {
- // Fill in the values that were not specified
- if ((specified & BoundsSpecified.X) == 0)
- x = Left;
- if ((specified & BoundsSpecified.Y) == 0)
- y = Top;
- if ((specified & BoundsSpecified.Width) == 0)
- width = Width;
- if ((specified & BoundsSpecified.Height) == 0)
- height = Height;
-
- SetBoundsInternal (x, y, width, height, specified);
- }
- internal void SetBoundsInternal (int x, int y, int width, int height, BoundsSpecified specified)
- {
- // SetBoundsCore is really expensive to call, so we want to avoid it if we can.
- // We can avoid it if:
- // - The requested dimensions are the same as our current dimensions
- // AND
- // - Any BoundsSpecified is the same as our current explicit_size
- if (bounds.X != x || (explicit_bounds.X != x && (specified & BoundsSpecified.X) == BoundsSpecified.X))
- SetBoundsCore (x, y, width, height, specified);
- else if (bounds.Y != y || (explicit_bounds.Y != y && (specified & BoundsSpecified.Y) == BoundsSpecified.Y))
- SetBoundsCore (x, y, width, height, specified);
- else if (bounds.Width != width || (explicit_bounds.Width != width && (specified & BoundsSpecified.Width) == BoundsSpecified.Width))
- SetBoundsCore (x, y, width, height, specified);
- else if (bounds.Height != height || (explicit_bounds.Height != height && (specified & BoundsSpecified.Height) == BoundsSpecified.Height))
- SetBoundsCore (x, y, width, height, specified);
- else
- return;
-
- // If the user explicitly moved or resized us, recalculate our anchor distances
- if (specified != BoundsSpecified.None)
- UpdateDistances ();
-
- if (parent != null)
- parent.PerformLayout(this, "Bounds");
- }
- public void Show () {
- this.Visible = true;
- }
- public void SuspendLayout() {
- layout_suspended++;
- }
- public void Update() {
- if (IsHandleCreated) {
- XplatUI.UpdateWindow(window.Handle);
- }
- }
- #endregion // Public Instance Methods
- #region Protected Instance Methods
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected void AccessibilityNotifyClients(AccessibleEvents accEvent, int childID) {
- // turns out this method causes handle
- // creation in 1.1. at first I thought this
- // would be accomplished just by using
- // get_AccessibilityObject, which would route
- // through CreateAccessibilityInstance, which
- // calls CreateControl. This isn't the case,
- // though (as overriding
- // CreateAccessibilityInstance and adding a
- // CWL shows nothing. So we fudge it and put
- // a CreateHandle here.
- if (accessibility_object != null && accessibility_object is ControlAccessibleObject)
- ((ControlAccessibleObject)accessibility_object).NotifyClients (accEvent, childID);
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- protected void AccessibilityNotifyClients (AccessibleEvents accEvent, int objectID, int childID)
- {
- if (accessibility_object != null && accessibility_object is ControlAccessibleObject)
- ((ControlAccessibleObject)accessibility_object).NotifyClients (accEvent, objectID, childID);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual AccessibleObject CreateAccessibilityInstance() {
- CreateControl ();
- return new Control.ControlAccessibleObject(this);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual ControlCollection CreateControlsInstance() {
- return new ControlCollection(this);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void CreateHandle() {
- if (IsDisposed) {
- throw new ObjectDisposedException(GetType().FullName);
- }
- if (IsHandleCreated && !is_recreating) {
- return;
- }
- CreateParams create_params = CreateParams;
- window.CreateHandle(create_params);
- if (window.Handle != IntPtr.Zero) {
- creator_thread = Thread.CurrentThread;
- XplatUI.EnableWindow(window.Handle, is_enabled);
- if (clip_region != null) {
- XplatUI.SetClipRegion(window.Handle, clip_region);
- }
- // Set our handle with our parent
- if ((parent != null) && (parent.IsHandleCreated)) {
- XplatUI.SetParent(window.Handle, parent.Handle);
- }
- UpdateStyles();
- XplatUI.SetAllowDrop (window.Handle, allow_drop);
- // Find out where the window manager placed us
- if ((CreateParams.Style & (int)WindowStyles.WS_CHILD) != 0) {
- XplatUI.SetBorderStyle(window.Handle, (FormBorderStyle)border_style);
- }
- Rectangle save_bounds = explicit_bounds;
- UpdateBounds ();
- explicit_bounds = save_bounds;
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void DefWndProc(ref Message m) {
- window.DefWndProc(ref m);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void DestroyHandle() {
- if (IsHandleCreated) {
- if (window != null) {
- window.DestroyHandle();
- }
- }
- }
- protected virtual AccessibleObject GetAccessibilityObjectById (int objectId)
- {
- // XXX need to implement this.
- return null;
- }
-
- protected internal AutoSizeMode GetAutoSizeMode ()
- {
- return auto_size_mode;
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- protected virtual Rectangle GetScaledBounds (Rectangle bounds, SizeF factor, BoundsSpecified specified)
- {
- // Top level controls do not scale location
- if (!is_toplevel) {
- if ((specified & BoundsSpecified.X) == BoundsSpecified.X)
- bounds.X = (int)Math.Round (bounds.X * factor.Width);
- if ((specified & BoundsSpecified.Y) == BoundsSpecified.Y)
- bounds.Y = (int)Math.Round (bounds.Y * factor.Height);
- }
- if ((specified & BoundsSpecified.Width) == BoundsSpecified.Width && !GetStyle (ControlStyles.FixedWidth)) {
- int border = (this is ComboBox) ? (ThemeEngine.Current.Border3DSize.Width * 2) :
- (this.bounds.Width - this.client_size.Width);
- bounds.Width = (int)Math.Round ((bounds.Width - border) * factor.Width + border);
- }
- if ((specified & BoundsSpecified.Height) == BoundsSpecified.Height && !GetStyle (ControlStyles.FixedHeight)) {
- int border = (this is ComboBox) ? (ThemeEngine.Current.Border3DSize.Height * 2) :
- (this.bounds.Height - this.client_size.Height);
- bounds.Height = (int)Math.Round ((bounds.Height - border) * factor.Height + border);
- }
- return bounds;
- }
- private Rectangle GetScaledBoundsOld (Rectangle bounds, SizeF factor, BoundsSpecified specified)
- {
- RectangleF new_bounds = new RectangleF(bounds.Location, bounds.Size);
- // Top level controls do not scale location
- if (!is_toplevel) {
- if ((specified & BoundsSpecified.X) == BoundsSpecified.X)
- new_bounds.X *= factor.Width;
- if ((specified & BoundsSpecified.Y) == BoundsSpecified.Y)
- new_bounds.Y *= factor.Height;
- }
- if ((specified & BoundsSpecified.Width) == BoundsSpecified.Width && !GetStyle (ControlStyles.FixedWidth)) {
- int border = (this is Form) ? (this.bounds.Width - this.client_size.Width) : 0;
- new_bounds.Width = ((new_bounds.Width - border) * factor.Width + border);
- }
- if ((specified & BoundsSpecified.Height) == BoundsSpecified.Height && !GetStyle (ControlStyles.FixedHeight)) {
- int border = (this is Form) ? (this.bounds.Height - this.client_size.Height) : 0;
- new_bounds.Height = ((new_bounds.Height - border) * factor.Height + border);
- }
- bounds.X = (int)Math.Round (new_bounds.X);
- bounds.Y = (int)Math.Round (new_bounds.Y);
- bounds.Width = (int)Math.Round (new_bounds.Right) - bounds.X;
- bounds.Height = (int)Math.Round (new_bounds.Bottom) - bounds.Y;
- return bounds;
- }
- protected internal bool GetStyle(ControlStyles flag) {
- return (control_style & flag) != 0;
- }
- protected bool GetTopLevel() {
- return is_toplevel;
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void InitLayout() {
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected void InvokeGotFocus(Control toInvoke, EventArgs e) {
- toInvoke.OnGotFocus(e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected void InvokeLostFocus(Control toInvoke, EventArgs e) {
- toInvoke.OnLostFocus(e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected void InvokeOnClick(Control toInvoke, EventArgs e) {
- toInvoke.OnClick(e);
- }
- protected void InvokePaint(Control c, PaintEventArgs e) {
- c.OnPaint (e);
- }
- protected void InvokePaintBackground(Control c, PaintEventArgs e) {
- c.OnPaintBackground (e);
- }
- protected virtual bool IsInputChar (char charCode) {
- // XXX on MS.NET this method causes the handle to be created..
- if (!IsHandleCreated)
- CreateHandle ();
- return IsInputCharInternal (charCode);
- }
- internal virtual bool IsInputCharInternal (char charCode) {
- return false;
- }
-
- protected virtual bool IsInputKey (Keys keyData) {
- // Doc says this one calls IsInputChar; not sure what to do with that
- return false;
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void NotifyInvalidate(Rectangle invalidatedArea) {
- // override me?
- }
- protected virtual bool ProcessCmdKey(ref Message msg, Keys keyData) {
- if ((context_menu != null) && context_menu.ProcessCmdKey(ref msg, keyData)) {
- return true;
- }
- if (parent != null) {
- return parent.ProcessCmdKey(ref msg, keyData);
- }
- return false;
- }
- protected virtual bool ProcessDialogChar(char charCode) {
- if (parent != null) {
- return parent.ProcessDialogChar (charCode);
- }
- return false;
- }
- protected virtual bool ProcessDialogKey (Keys keyData) {
- if (parent != null) {
- return parent.ProcessDialogKey (keyData);
- }
- return false;
- }
- protected virtual bool ProcessKeyEventArgs (ref Message m)
- {
- KeyEventArgs key_event;
- switch (m.Msg) {
- case (int)Msg.WM_SYSKEYDOWN:
- case (int)Msg.WM_KEYDOWN: {
- key_event = new KeyEventArgs (((Keys) m.WParam.ToInt32 ()) | XplatUI.State.ModifierKeys);
- OnKeyDown (key_event);
- suppressing_key_press = key_event.SuppressKeyPress;
- return key_event.Handled;
- }
- case (int)Msg.WM_SYSKEYUP:
- case (int)Msg.WM_KEYUP: {
- key_event = new KeyEventArgs (((Keys) m.WParam.ToInt32 ()) | XplatUI.State.ModifierKeys);
- OnKeyUp (key_event);
- return key_event.Handled;
- }
- case (int)Msg.WM_SYSCHAR:
- case (int)Msg.WM_CHAR: {
- if (suppressing_key_press)
- return true;
- KeyPressEventArgs key_press_event;
- key_press_event = new KeyPressEventArgs ((char) m.WParam);
- OnKeyPress(key_press_event);
- m.WParam = (IntPtr) key_press_event.KeyChar;
- return key_press_event.Handled;
- }
- default: {
- break;
- }
- }
- return false;
- }
- protected internal virtual bool ProcessKeyMessage (ref Message m)
- {
- if (parent != null) {
- if (parent.ProcessKeyPreview (ref m))
- return true;
- }
- return ProcessKeyEventArgs (ref m);
- }
- protected virtual bool ProcessKeyPreview (ref Message m) {
- if (parent != null)
- return parent.ProcessKeyPreview(ref m);
- return false;
- }
- protected virtual bool ProcessMnemonic(char charCode) {
- // override me
- return false;
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected void RaiseDragEvent(object key, DragEventArgs e) {
- // MS Internal
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected void RaiseKeyEvent(object key, KeyEventArgs e) {
- // MS Internal
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected void RaiseMouseEvent(object key, MouseEventArgs e) {
- // MS Internal
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected void RaisePaintEvent(object key, PaintEventArgs e) {
- // MS Internal
- }
- private void SetIsRecreating () {
- is_recreating=true;
- foreach (Control c in Controls.GetAllControls()) {
- c.SetIsRecreating ();
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected void RecreateHandle() {
- if (!IsHandleCreated)
- return;
- #if DebugRecreate
- Console.WriteLine("Recreating control {0}", XplatUI.Window(window.Handle));
- #endif
- SetIsRecreating ();
- if (IsHandleCreated) {
- #if DebugRecreate
- Console.WriteLine(" + handle is created, destroying it.");
- #endif
- DestroyHandle();
- // WM_DESTROY will CreateHandle for us
- } else {
- #if DebugRecreate
- Console.WriteLine(" + handle is not created, creating it.");
- #endif
- if (!is_created) {
- CreateControl();
- } else {
- CreateHandle();
- }
- is_recreating = false;
- #if DebugRecreate
- Console.WriteLine (" + new handle = {0:X}", Handle.ToInt32());
- #endif
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected void ResetMouseEventArgs() {
- // MS Internal
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected ContentAlignment RtlTranslateAlignment(ContentAlignment align) {
- if (right_to_left == RightToLeft.No) {
- return align;
- }
- switch (align) {
- case ContentAlignment.TopLeft: {
- return ContentAlignment.TopRight;
- }
- case ContentAlignment.TopRight: {
- return ContentAlignment.TopLeft;
- }
- case ContentAlignment.MiddleLeft: {
- return ContentAlignment.MiddleRight;
- }
- case ContentAlignment.MiddleRight: {
- return ContentAlignment.MiddleLeft;
- }
- case ContentAlignment.BottomLeft: {
- return ContentAlignment.BottomRight;
- }
- case ContentAlignment.BottomRight: {
- return ContentAlignment.BottomLeft;
- }
- default: {
- // if it's center it doesn't change
- return align;
- }
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected HorizontalAlignment RtlTranslateAlignment(HorizontalAlignment align) {
- if ((right_to_left == RightToLeft.No) || (align == HorizontalAlignment.Center)) {
- return align;
- }
- if (align == HorizontalAlignment.Left) {
- return HorizontalAlignment.Right;
- }
- // align must be HorizontalAlignment.Right
- return HorizontalAlignment.Left;
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected LeftRightAlignment RtlTranslateAlignment(LeftRightAlignment align) {
- if (right_to_left == RightToLeft.No) {
- return align;
- }
- if (align == LeftRightAlignment.Left) {
- return LeftRightAlignment.Right;
- }
- // align must be LeftRightAlignment.Right;
- return LeftRightAlignment.Left;
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected ContentAlignment RtlTranslateContent(ContentAlignment align) {
- return RtlTranslateAlignment(align);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected HorizontalAlignment RtlTranslateHorizontal(HorizontalAlignment align) {
- return RtlTranslateAlignment(align);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected LeftRightAlignment RtlTranslateLeftRight(LeftRightAlignment align) {
- return RtlTranslateAlignment(align);
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- protected virtual void ScaleControl (SizeF factor, BoundsSpecified specified)
- {
- Rectangle new_bounds = GetScaledBounds (bounds, factor, specified);
- SetBounds (new_bounds.X, new_bounds.Y, new_bounds.Width, new_bounds.Height, specified);
- }
- [EditorBrowsable (EditorBrowsableState.Never)]
- protected virtual void ScaleCore (float dx, float dy)
- {
- Rectangle new_bounds = GetScaledBoundsOld (bounds, new SizeF (dx, dy), BoundsSpecified.All);
- SuspendLayout ();
- SetBounds (new_bounds.X, new_bounds.Y, new_bounds.Width, new_bounds.Height, BoundsSpecified.All);
- if (ScaleChildrenInternal)
- foreach (Control c in Controls.GetAllControls ())
- c.Scale (dx, dy);
- ResumeLayout ();
- }
- protected virtual void Select(bool directed, bool forward) {
- IContainerControl container;
-
- container = GetContainerControl();
- if (container != null && (Control)container != this)
- container.ActiveControl = this;
- }
- protected void SetAutoSizeMode (AutoSizeMode mode)
- {
- if (auto_size_mode != mode) {
- auto_size_mode = mode;
- PerformLayout (this, "AutoSizeMode");
- }
- }
-
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void SetBoundsCore(int x, int y, int width, int height, BoundsSpecified specified) {
- SetBoundsCoreInternal (x, y, width, height, specified);
- }
-
- internal virtual void SetBoundsCoreInternal(int x, int y, int width, int height, BoundsSpecified specified) {
- // Nasty hack for 2.0 DateTimePicker
- height = OverrideHeight (height);
-
- Rectangle old_explicit = explicit_bounds;
- Rectangle new_bounds = new Rectangle (x, y, width, height);
- // SetBoundsCore updates the Win32 control itself. UpdateBounds updates the controls variables and fires events, I'm guessing - pdb
- if (IsHandleCreated) {
- XplatUI.SetWindowPos(Handle, x, y, width, height);
- // Win32 automatically changes negative width/height to 0.
- // The control has already been sent a WM_WINDOWPOSCHANGED message and it has the correct
- // data, but it'll be overwritten when we call UpdateBounds unless we get the updated
- // size.
- int cw, ch, ix, iy;
- XplatUI.GetWindowPos(Handle, this is Form, out ix, out iy, out width, out height, out cw, out ch);
- }
- // BoundsSpecified tells us which variables were programatic (user-set).
- // We need to store those in the explicit bounds
- if ((specified & BoundsSpecified.X) == BoundsSpecified.X)
- explicit_bounds.X = new_bounds.X;
- else
- explicit_bounds.X = old_explicit.X;
- if ((specified & BoundsSpecified.Y) == BoundsSpecified.Y)
- explicit_bounds.Y = new_bounds.Y;
- else
- explicit_bounds.Y = old_explicit.Y;
- if ((specified & BoundsSpecified.Width) == BoundsSpecified.Width)
- explicit_bounds.Width = new_bounds.Width;
- else
- explicit_bounds.Width = old_explicit.Width;
- if ((specified & BoundsSpecified.Height) == BoundsSpecified.Height)
- explicit_bounds.Height = new_bounds.Height;
- else
- explicit_bounds.Height = old_explicit.Height;
- // We need to store the explicit bounds because UpdateBounds is always going
- // to change it, and we have to fix it. However, UpdateBounds also calls
- // OnLocationChanged, OnSizeChanged, and OnClientSizeChanged. The user can
- // override those or use those events to change the size explicitly, and we
- // can't undo those changes. So if the bounds after calling UpdateBounds are
- // the same as the ones we sent it, we need to fix the explicit bounds. If
- // it's not the same as we sent UpdateBounds, then someone else changed it, and
- // we better not mess it up. Fun stuff.
- Rectangle stored_explicit_bounds = explicit_bounds;
-
- UpdateBounds(x, y, width, height);
- if (explicit_bounds.X == x)
- explicit_bounds.X = stored_explicit_bounds.X;
- if (explicit_bounds.Y == y)
- explicit_bounds.Y = stored_explicit_bounds.Y;
- if (explicit_bounds.Width == width)
- explicit_bounds.Width = stored_explicit_bounds.Width;
- if (explicit_bounds.Height == height)
- explicit_bounds.Height = stored_explicit_bounds.Height;
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void SetClientSizeCore(int x, int y) {
- Size NewSize = InternalSizeFromClientSize (new Size (x, y));
-
- if (NewSize != Size.Empty)
- SetBounds (bounds.X, bounds.Y, NewSize.Width, NewSize.Height, BoundsSpecified.Size);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected internal void SetStyle(ControlStyles flag, bool value) {
- if (value) {
- control_style |= flag;
- } else {
- control_style &= ~flag;
- }
- }
- protected void SetTopLevel(bool value) {
- if ((GetTopLevel() != value) && (parent != null)) {
- throw new ArgumentException ("Cannot change toplevel style of a parented control.");
- }
- if (this is Form) {
- if (IsHandleCreated && value != Visible) {
- Visible = value;
- }
- } else {
- // XXX MS.NET causes handle to be created here
- if (!IsHandleCreated)
- CreateHandle ();
- }
- is_toplevel = value;
- }
- protected virtual void SetVisibleCore(bool value) {
- if (value != is_visible) {
- is_visible = value;
-
- if (is_visible && ((window.Handle == IntPtr.Zero) || !is_created)) {
- CreateControl();
- if (!(this is Form))
- UpdateZOrder ();
- }
- if (IsHandleCreated) {
- XplatUI.SetVisible (Handle, is_visible, true);
- if (!is_visible) {
- if (parent != null && parent.IsHandleCreated) {
- parent.Invalidate (bounds);
- parent.Update ();
- } else {
- Refresh ();
- }
- } else if (is_visible && this is Form) {
- // If we are Min or Max, we won't get a WM_SHOWWINDOW from SetWindowState,
- // so we need to manually create our children, and set them visible
- // (This normally happens in WmShowWindow.)
- if ((this as Form).WindowState != FormWindowState.Normal)
- OnVisibleChanged (EventArgs.Empty);
- else
- // Explicitly move Toplevel windows to where we want them;
- // apparently moving unmapped toplevel windows doesn't work
- XplatUI.SetWindowPos(window.Handle, bounds.X, bounds.Y, bounds.Width, bounds.Height);
- } else {
- // If we are becoming visible, z-order may have changed while
- // we were invisible, so update our z-order position
- if (parent != null)
- parent.UpdateZOrderOfChild (this);
- }
-
- if (!(this is Form))
- OnVisibleChanged (EventArgs.Empty);
- }
- else {
- OnVisibleChanged(EventArgs.Empty);
- }
- }
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- protected virtual Size SizeFromClientSize (Size clientSize) {
- return InternalSizeFromClientSize (clientSize);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected void UpdateBounds() {
- if (!IsHandleCreated)
- return;
- int x;
- int y;
- int width;
- int height;
- int client_width;
- int client_height;
- XplatUI.GetWindowPos(this.Handle, this is Form, out x, out y, out width, out height, out client_width, out client_height);
- UpdateBounds(x, y, width, height, client_width, client_height);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected void UpdateBounds(int x, int y, int width, int height) {
- CreateParams cp;
- Rectangle rect;
- // Calculate client rectangle
- rect = new Rectangle(0, 0, 0, 0);
- cp = CreateParams;
- XplatUI.CalculateWindowRect(ref rect, cp, cp.menu, out rect);
- UpdateBounds(x, y, width, height, width - (rect.Right - rect.Left), height - (rect.Bottom - rect.Top));
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected void UpdateBounds(int x, int y, int width, int height, int clientWidth, int clientHeight) {
- // UpdateBounds only seems to set our sizes and fire events but not update the GUI window to match
- bool moved = false;
- bool resized = false;
- // Needed to generate required notifications
- if ((this.bounds.X!=x) || (this.bounds.Y!=y)) {
- moved=true;
- }
- if ((this.Bounds.Width!=width) || (this.Bounds.Height!=height)) {
- resized=true;
- }
- bounds.X=x;
- bounds.Y=y;
- bounds.Width=width;
- bounds.Height=height;
- // Assume explicit bounds set. SetBoundsCore will restore old bounds
- // if needed.
- explicit_bounds = bounds;
- client_size.Width=clientWidth;
- client_size.Height=clientHeight;
- if (moved) {
- OnLocationChanged(EventArgs.Empty);
- if (!background_color.IsEmpty && background_color.A < byte.MaxValue)
- Invalidate ();
- }
- if (resized) {
- OnSizeInitializedOrChanged ();
- OnSizeChanged(EventArgs.Empty);
- OnClientSizeChanged (EventArgs.Empty);
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected void UpdateStyles() {
- if (!IsHandleCreated) {
- return;
- }
- XplatUI.SetWindowStyle(window.Handle, CreateParams);
- OnStyleChanged(EventArgs.Empty);
- }
- private void UpdateZOrderOfChild(Control child) {
- if (IsHandleCreated && child.IsHandleCreated && (child.parent == this) && Hwnd.ObjectFromHandle(child.Handle).Mapped) {
- // Need to take into account all controls
- Control [] all_controls = child_controls.GetAllControls ();
- int index = Array.IndexOf (all_controls, child);
-
- for (; index > 0; index--) {
- if (!all_controls [index - 1].IsHandleCreated || !all_controls [index - 1].VisibleInternal || !Hwnd.ObjectFromHandle(all_controls [index - 1].Handle).Mapped)
- continue;
- break;
- }
-
- if (index > 0) {
- XplatUI.SetZOrder(child.Handle, all_controls [index - 1].Handle, false, false);
- } else {
- IntPtr after = AfterTopMostControl ();
- if (after != IntPtr.Zero && after != child.Handle)
- XplatUI.SetZOrder (child.Handle, after, false, false);
- else
- XplatUI.SetZOrder (child.Handle, IntPtr.Zero, true, false);
- }
- }
- }
-
- // Override this if there is a control that shall always remain on
- // top of other controls (such as scrollbars). If there are several
- // of these controls, the bottom-most should be returned.
- internal virtual IntPtr AfterTopMostControl () {
- return IntPtr.Zero;
- }
- // internal because we need to call it from ScrollableControl.OnVisibleChanged
- internal void UpdateChildrenZOrder() {
- Control [] controls;
- if (!IsHandleCreated) {
- return;
- }
- // XXX This code is severely broken. It leaks
- // the "zero_sized" abstraction out of the X11
- // backend and into Control.cs. It'll work on
- // windows simply by virtue of windows never
- // setting that field to true.
- //
- // basically what we need to guard against is
- // calling XplatUI.SetZOrder on an hwnd that
- // corresponds to an unmapped X window.
- //
- // Also, explicitly send implicit controls to the back.
- if (child_controls.ImplicitControls == null) {
- controls = new Control [child_controls.Count];
- child_controls.CopyTo (controls, 0);
- } else {
- controls = new Control [child_controls.Count + child_controls.ImplicitControls.Count];
- child_controls.CopyTo (controls, 0);
- child_controls.ImplicitControls.CopyTo (controls, child_controls.Count);
- }
- ArrayList children_to_order = new ArrayList ();
- for (int i = 0; i < controls.Length; i ++) {
- if (!controls[i].IsHandleCreated || !controls[i].VisibleInternal)
- continue;
- Hwnd hwnd = Hwnd.ObjectFromHandle (controls[i].Handle);
- if (hwnd == null || hwnd.zero_sized)
- continue;
- children_to_order.Add (controls[i]);
- }
- for (int i = 1; i < children_to_order.Count; i ++) {
- Control upper = (Control)children_to_order[i-1];
- Control lower = (Control)children_to_order[i];
- XplatUI.SetZOrder(lower.Handle, upper.Handle, false, false);
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected void UpdateZOrder() {
- if (parent != null) {
- parent.UpdateZOrderOfChild(this);
- }
- }
- protected virtual void WndProc(ref Message m) {
- #if DebugMessages
- Console.WriteLine("Control {0} received message {1}", window.Handle == IntPtr.Zero ? this.Text : XplatUI.Window(window.Handle), m.ToString ());
- #endif
- if ((this.control_style & ControlStyles.EnableNotifyMessage) != 0) {
- OnNotifyMessage(m);
- }
- switch((Msg)m.Msg) {
- case Msg.WM_DESTROY: {
- WmDestroy(ref m);
- return;
- }
- case Msg.WM_WINDOWPOSCHANGED: {
- WmWindowPosChanged(ref m);
- return;
- }
- // Nice description of what should happen when handling WM_PAINT
- // can be found here: http://pluralsight.com/wiki/default.aspx/Craig/FlickerFreeControlDrawing.html
- // and here http://msdn.microsoft.com/msdnmag/issues/06/03/WindowsFormsPerformance/
- case Msg.WM_PAINT: {
- WmPaint (ref m);
- return;
- }
-
- // The DefWndProc will never have to handle this, we always paint the background in managed code
- // In theory this code would look at ControlStyles.AllPaintingInWmPaint and and call OnPaintBackground
- // here but it just makes things more complicated...
- case Msg.WM_ERASEBKGND: {
- WmEraseBackground (ref m);
- return;
- }
- case Msg.WM_LBUTTONUP: {
- WmLButtonUp (ref m);
- return;
- }
-
- case Msg.WM_LBUTTONDOWN: {
- WmLButtonDown (ref m);
- return;
- }
- case Msg.WM_LBUTTONDBLCLK: {
- WmLButtonDblClick (ref m);
- return;
- }
- case Msg.WM_MBUTTONUP: {
- WmMButtonUp (ref m);
- return;
- }
-
- case Msg.WM_MBUTTONDOWN: {
- WmMButtonDown (ref m);
- return;
- }
- case Msg.WM_MBUTTONDBLCLK: {
- WmMButtonDblClick (ref m);
- return;
- }
- case Msg.WM_RBUTTONUP: {
- WmRButtonUp (ref m);
- return;
- }
-
- case Msg.WM_RBUTTONDOWN: {
- WmRButtonDown (ref m);
- return;
- }
- case Msg.WM_RBUTTONDBLCLK: {
- WmRButtonDblClick (ref m);
- return;
- }
- case Msg.WM_CONTEXTMENU: {
- WmContextMenu (ref m);
- return;
- }
- case Msg.WM_MOUSEWHEEL: {
- WmMouseWheel (ref m);
- return;
- }
- case Msg.WM_MOUSEMOVE: {
- WmMouseMove (ref m);
- return;
- }
- case Msg.WM_SHOWWINDOW: {
- WmShowWindow (ref m);
- return;
- }
- case Msg.WM_CREATE: {
- WmCreate (ref m);
- return;
- }
- case Msg.WM_MOUSE_ENTER: {
- WmMouseEnter (ref m);
- return;
- }
- case Msg.WM_MOUSELEAVE: {
- WmMouseLeave (ref m);
- return;
- }
- case Msg.WM_MOUSEHOVER: {
- WmMouseHover (ref m);
- return;
- }
- case Msg.WM_SYSKEYUP: {
- WmSysKeyUp (ref m);
- return;
- }
- case Msg.WM_SYSKEYDOWN:
- case Msg.WM_KEYDOWN:
- case Msg.WM_KEYUP:
- case Msg.WM_SYSCHAR:
- case Msg.WM_CHAR: {
- WmKeys (ref m);
- return;
- }
- case Msg.WM_HELP: {
- WmHelp (ref m);
- return;
- }
- case Msg.WM_KILLFOCUS: {
- WmKillFocus (ref m);
- return;
- }
- case Msg.WM_SETFOCUS: {
- WmSetFocus (ref m);
- return;
- }
-
- case Msg.WM_SYSCOLORCHANGE: {
- WmSysColorChange (ref m);
- return;
- }
- case Msg.WM_SETCURSOR: {
- WmSetCursor (ref m);
- return;
- }
- case Msg.WM_CAPTURECHANGED: {
- WmCaptureChanged (ref m);
- return;
- }
- case Msg.WM_CHANGEUISTATE: {
- WmChangeUIState (ref m);
- return;
- }
-
- case Msg.WM_UPDATEUISTATE: {
- WmUpdateUIState (ref m);
- return;
- }
- default:
- DefWndProc(ref m);
- return;
- }
- }
- #endregion // Public Instance Methods
- #region WM methods
-
- private void WmDestroy (ref Message m) {
- OnHandleDestroyed(EventArgs.Empty);
- #if DebugRecreate
- IntPtr handle = window.Handle;
- #endif
- window.InvalidateHandle();
- is_created = false;
- if (is_recreating) {
- #if DebugRecreate
- Console.WriteLine ("Creating handle for {0:X}", handle.ToInt32());
- #endif
- CreateHandle();
- #if DebugRecreate
- Console.WriteLine (" + new handle = {0:X}", Handle.ToInt32());
- #endif
- is_recreating = false;
- }
- if (is_disposing) {
- is_disposing = false;
- is_visible = false;
- }
- }
- private void WmWindowPosChanged (ref Message m) {
- if (Visible) {
- Rectangle save_bounds = explicit_bounds;
- UpdateBounds();
- explicit_bounds = save_bounds;
- if (GetStyle(ControlStyles.ResizeRedraw)) {
- Invalidate();
- }
- }
- }
- // Nice description of what should happen when handling WM_PAINT
- // can be found here: http://pluralsight.com/wiki/default.aspx/Craig/FlickerFreeControlDrawing.html
- // and here http://msdn.microsoft.com/msdnmag/issues/06/03/WindowsFormsPerformance/
- private void WmPaint (ref Message m) {
- IntPtr handle = Handle;
- PaintEventArgs paint_event = XplatUI.PaintEventStart (ref m, handle, true);
- if (paint_event == null)
- return;
- DoubleBuffer current_buffer = null;
- if (UseDoubleBuffering) {
- current_buffer = GetBackBuffer ();
- // This optimization doesn't work when the area is invalidated
- // during a paint operation because finishing the paint operation
- // clears the invalidated region and then this thing keeps the new
- // invalidate from working. To re-enable this, we would need a
- // mechanism to allow for nested invalidates (see bug #328681)
- //if (!current_buffer.InvalidRegion.IsVisible (paint_event.ClipRectangle)) {
- // // Just blit the previous image
- // current_buffer.Blit (paint_event);
- // XplatUI.PaintEventEnd (ref m, handle, true);
- // return;
- //}
- current_buffer.Start (paint_event);
- }
- // If using OptimizedDoubleBuffer, ensure the clip region gets set
- if (GetStyle (ControlStyles.OptimizedDoubleBuffer))
- paint_event.Graphics.SetClip (Rectangle.Intersect (paint_event.ClipRectangle, this.ClientRectangle));
- if (!GetStyle(ControlStyles.Opaque)) {
- OnPaintBackground (paint_event);
- }
- // Button-derived controls choose to ignore their Opaque style, give them a chance to draw their background anyways
- OnPaintBackgroundInternal (paint_event);
- OnPaintInternal(paint_event);
- if (!paint_event.Handled) {
- OnPaint (paint_event);
- }
- if (current_buffer != null) {
- current_buffer.End (paint_event);
- }
- XplatUI.PaintEventEnd (ref m, handle, true);
- }
- private void WmEraseBackground (ref Message m) {
- // The DefWndProc will never have to handle this, we always paint the background in managed code
- // In theory this code would look at ControlStyles.AllPaintingInWmPaint and and call OnPaintBackground
- // here but it just makes things more complicated...
- m.Result = (IntPtr)1;
- }
- private void WmLButtonUp (ref Message m)
- {
- // Menu handle.
- if (XplatUI.IsEnabled (Handle) && active_tracker != null) {
- ProcessActiveTracker (ref m);
- return;
- }
- MouseEventArgs me;
- me = new MouseEventArgs (FromParamToMouseButtons ((int) m.WParam.ToInt32()) | MouseButtons.Left,
- mouse_clicks,
- LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()),
- 0);
- HandleClick(mouse_clicks, me);
- OnMouseUp (me);
- if (InternalCapture) {
- InternalCapture = false;
- }
- if (mouse_clicks > 1) {
- mouse_clicks = 1;
- }
- }
- private void WmLButtonDown (ref Message m)
- {
- // Menu handle.
- if (XplatUI.IsEnabled (Handle) && active_tracker != null) {
- ProcessActiveTracker (ref m);
- return;
- }
-
- ValidationFailed = false;
- if (CanSelect) {
- Select (true, true);
- }
- if (!ValidationFailed) {
- InternalCapture = true;
- OnMouseDown (new MouseEventArgs (FromParamToMouseButtons ((int) m.WParam.ToInt32()),
- mouse_clicks, LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()),
- 0));
- }
- }
- private void WmLButtonDblClick (ref Message m) {
- InternalCapture = true;
- mouse_clicks++;
- OnMouseDown (new MouseEventArgs (FromParamToMouseButtons ((int) m.WParam.ToInt32()),
- mouse_clicks, LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()),
- 0));
- }
- private void WmMButtonUp (ref Message m) {
- MouseEventArgs me;
- me = new MouseEventArgs (FromParamToMouseButtons ((int) m.WParam.ToInt32()) | MouseButtons.Middle,
- mouse_clicks,
- LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()),
- 0);
- HandleClick(mouse_clicks, me);
- OnMouseUp (me);
- if (InternalCapture) {
- InternalCapture = false;
- }
- if (mouse_clicks > 1) {
- mouse_clicks = 1;
- }
- }
- private void WmMButtonDown (ref Message m) {
- InternalCapture = true;
- OnMouseDown (new MouseEventArgs (FromParamToMouseButtons ((int) m.WParam.ToInt32()),
- mouse_clicks, LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()),
- 0));
- }
- private void WmMButtonDblClick (ref Message m) {
- InternalCapture = true;
- mouse_clicks++;
- OnMouseDown (new MouseEventArgs (FromParamToMouseButtons ((int) m.WParam.ToInt32()),
- mouse_clicks, LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()),
- 0));
- }
- private void WmRButtonUp (ref Message m)
- {
- // Menu handle.
- if (XplatUI.IsEnabled (Handle) && active_tracker != null) {
- ProcessActiveTracker (ref m);
- return;
- }
- MouseEventArgs me;
- Point pt;
- pt = new Point(LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()));
- pt = PointToScreen(pt);
- me = new MouseEventArgs (FromParamToMouseButtons ((int) m.WParam.ToInt32()) | MouseButtons.Right,
- mouse_clicks,
- LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()),
- 0);
- HandleClick(mouse_clicks, me);
- XplatUI.SendMessage(m.HWnd, Msg.WM_CONTEXTMENU, m.HWnd, (IntPtr)(pt.X + (pt.Y << 16)));
- OnMouseUp (me);
- if (InternalCapture) {
- InternalCapture = false;
- }
- if (mouse_clicks > 1) {
- mouse_clicks = 1;
- }
- }
- private void WmRButtonDown (ref Message m)
- {
- // Menu handle.
- if (XplatUI.IsEnabled (Handle) && active_tracker != null) {
- ProcessActiveTracker (ref m);
- return;
- }
- InternalCapture = true;
- OnMouseDown (new MouseEventArgs (FromParamToMouseButtons ((int) m.WParam.ToInt32()),
- mouse_clicks, LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()),
- 0));
- }
- private void WmRButtonDblClick (ref Message m) {
- InternalCapture = true;
- mouse_clicks++;
- OnMouseDown (new MouseEventArgs (FromParamToMouseButtons ((int) m.WParam.ToInt32()),
- mouse_clicks, LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()),
- 0));
- }
- private void WmContextMenu (ref Message m) {
- if (context_menu != null) {
- Point pt;
- pt = new Point(LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()));
- if (pt.X == -1 || pt.Y == -1) {
- pt.X = (this.Width / 2) + this.Left;
- pt.Y = (this.Height / 2) + this.Top;
- pt = this.PointToScreen (pt);
- }
-
- context_menu.Show (this, PointToClient (pt));
- return;
- }
- // If there isn't a regular context menu, show the Strip version
- if (context_menu == null && context_menu_strip != null) {
- Point pt;
- pt = new Point (LowOrder ((int)m.LParam.ToInt32 ()), HighOrder ((int)m.LParam.ToInt32 ()));
-
- if (pt.X == -1 || pt.Y == -1) {
- pt.X = (this.Width / 2) + this.Left;
- pt.Y = (this.Height /2) + this.Top;
- pt = this.PointToScreen (pt);
- }
-
- context_menu_strip.SetSourceControl (this);
- context_menu_strip.Show (this, PointToClient (pt));
- return;
- }
- DefWndProc(ref m);
- }
- private void WmCreate (ref Message m) {
- OnHandleCreated(EventArgs.Empty);
- }
- private void WmMouseWheel (ref Message m) {
- DefWndProc(ref m);
- OnMouseWheel (new MouseEventArgs (FromParamToMouseButtons ((long) m.WParam),
- mouse_clicks, LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()),
- HighOrder((long)m.WParam)));
- }
- private void WmMouseMove (ref Message m) {
- if (XplatUI.IsEnabled (Handle) && active_tracker != null) {
- MouseEventArgs args = new MouseEventArgs (
- FromParamToMouseButtons ((int)m.WParam.ToInt32 ()),
- mouse_clicks,
- Control.MousePosition.X,
- Control.MousePosition.Y,
- 0);
- active_tracker.OnMotion (args);
- return;
- }
-
- OnMouseMove (new MouseEventArgs (FromParamToMouseButtons ((int) m.WParam.ToInt32()),
- mouse_clicks,
- LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()),
- 0));
- }
- private void WmMouseEnter (ref Message m) {
- if (is_entered) {
- return;
- }
- is_entered = true;
- OnMouseEnter(EventArgs.Empty);
- }
- private void WmMouseLeave (ref Message m) {
- is_entered=false;
- OnMouseLeave(EventArgs.Empty);
- }
- private void WmMouseHover (ref Message m) {
- OnMouseHover(EventArgs.Empty);
- }
- private void WmShowWindow (ref Message m) {
- if (IsDisposed)
- return;
- Form frm = this as Form;
- if (m.WParam.ToInt32() != 0) {
- if (m.LParam.ToInt32 () == 0) {
- CreateControl ();
-
- // Make sure all our children are properly parented to us
- Control [] controls = child_controls.GetAllControls ();
- // bool parented = false;
- for (int i=0; i<controls.Length; i++) {
- if (controls [i].is_visible && controls[i].IsHandleCreated)
- if (XplatUI.GetParent (controls[i].Handle) != window.Handle) {
- XplatUI.SetParent(controls[i].Handle, window.Handle);
- // parented = true;
- }
- }
-
- //if (parented)
- UpdateChildrenZOrder ();
- }
- } else {
- if (parent != null && Focused) {
- Control container;
- // Need to start at parent, GetContainerControl might return ourselves if we're a container
- container = (Control)parent.GetContainerControl();
- if (container != null && (frm == null || !frm.IsMdiChild)) {
- container.SelectNextControl(this, true, true, true, true);
- }
- }
- }
- if (frm != null)
- frm.waiting_showwindow = false;
- // If the form is Max/Min, it got its OnVisibleChanged in SetVisibleCore
- if (frm != null) {
- if (!IsRecreating && (frm.IsMdiChild || frm.WindowState == FormWindowState.Normal)) /* XXX make sure this works for mdi forms */
- OnVisibleChanged(EventArgs.Empty);
- } else if (is_toplevel)
- OnVisibleChanged(EventArgs.Empty);
- }
- private void WmSysKeyUp (ref Message m) {
- if (ProcessKeyMessage(ref m)) {
- m.Result = IntPtr.Zero;
- return;
- }
- if ((m.WParam.ToInt32() & (int)Keys.KeyCode) == (int)Keys.Menu) {
- Form form;
- form = FindForm();
- if (form != null && form.ActiveMenu != null) {
- form.ActiveMenu.ProcessCmdKey(ref m, (Keys)m.WParam.ToInt32());
- }
- else
- if (ToolStripManager.ProcessMenuKey (ref m))
- return;
- }
- DefWndProc (ref m);
- }
- private void WmKeys (ref Message m)
- {
- if (ProcessKeyMessage(ref m)) {
- m.Result = IntPtr.Zero;
- return;
- }
- DefWndProc (ref m);
- }
- private void WmHelp (ref Message m) {
- Point mouse_pos;
- if (m.LParam != IntPtr.Zero) {
- HELPINFO hi;
- hi = new HELPINFO();
- hi = (HELPINFO) Marshal.PtrToStructure (m.LParam, typeof (HELPINFO));
- mouse_pos = new Point(hi.MousePos.x, hi.MousePos.y);
- } else {
- mouse_pos = Control.MousePosition;
- }
- OnHelpRequested(new HelpEventArgs(mouse_pos));
- m.Result = (IntPtr)1;
- }
- private void WmKillFocus (ref Message m) {
- this.has_focus = false;
- OnLostFocus (EventArgs.Empty);
- }
- private void WmSetFocus (ref Message m) {
- if (!has_focus) {
- this.has_focus = true;
- OnGotFocus (EventArgs.Empty);
- }
- }
-
- private void WmSysColorChange (ref Message m) {
- ThemeEngine.Current.ResetDefaults();
- OnSystemColorsChanged(EventArgs.Empty);
- }
- private void WmSetCursor (ref Message m) {
- if ((cursor == null && use_wait_cursor == false) || ((HitTest)(m.LParam.ToInt32() & 0xffff) != HitTest.HTCLIENT)) {
- DefWndProc(ref m);
- return;
- }
- XplatUI.SetCursor(window.Handle, Cursor.handle);
- m.Result = (IntPtr)1;
- }
- private void WmCaptureChanged (ref Message m) {
- is_captured = false;
- OnMouseCaptureChanged (EventArgs.Empty);
- m.Result = (IntPtr) 0;
- }
- private void WmChangeUIState (ref Message m) {
- foreach (Control control in Controls) {
- XplatUI.SendMessage (control.Handle, Msg.WM_UPDATEUISTATE, m.WParam, m.LParam);
- }
- }
- private void WmUpdateUIState (ref Message m) {
- int action = LowOrder (m.WParam.ToInt32 ());
- int element = HighOrder (m.WParam.ToInt32 ());
- if (action == (int) MsgUIState.UIS_INITIALIZE)
- return;
- UICues cues = UICues.None;
- if ((element & (int) MsgUIState.UISF_HIDEACCEL) != 0) {
- if ((action == (int) MsgUIState.UIS_CLEAR) != show_keyboard_cues) {
- cues |= UICues.ChangeKeyboard;
- show_keyboard_cues = (action == (int) MsgUIState.UIS_CLEAR);
- }
- }
- if ((element & (int) MsgUIState.UISF_HIDEFOCUS) != 0) {
- if ((action == (int) MsgUIState.UIS_CLEAR) != show_focus_cues) {
- cues |= UICues.ChangeFocus;
- show_focus_cues = (action == (int) MsgUIState.UIS_CLEAR);
- }
- }
- if ((cues & UICues.Changed) != UICues.None) {
- OnChangeUICues (new UICuesEventArgs (cues));
- Invalidate ();
- }
- }
- #endregion
- #region OnXXX methods
- protected virtual void OnAutoSizeChanged (EventArgs e)
- {
- EventHandler eh = (EventHandler)(Events[AutoSizeChangedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- protected virtual void OnBackColorChanged(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [BackColorChangedEvent]);
- if (eh != null)
- eh (this, e);
- for (int i=0; i<child_controls.Count; i++) child_controls[i].OnParentBackColorChanged(e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnBackgroundImageChanged(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [BackgroundImageChangedEvent]);
- if (eh != null)
- eh (this, e);
- for (int i=0; i<child_controls.Count; i++) child_controls[i].OnParentBackgroundImageChanged(e);
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- protected virtual void OnBackgroundImageLayoutChanged (EventArgs e)
- {
- EventHandler eh = (EventHandler)(Events[BackgroundImageLayoutChangedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnBindingContextChanged(EventArgs e) {
- CheckDataBindings ();
- EventHandler eh = (EventHandler)(Events [BindingContextChangedEvent]);
- if (eh != null)
- eh (this, e);
- for (int i=0; i<child_controls.Count; i++) child_controls[i].OnParentBindingContextChanged(e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnCausesValidationChanged(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [CausesValidationChangedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnChangeUICues(UICuesEventArgs e) {
- UICuesEventHandler eh = (UICuesEventHandler)(Events [ChangeUICuesEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnClick(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [ClickEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- protected virtual void OnClientSizeChanged (EventArgs e)
- {
- EventHandler eh = (EventHandler)(Events[ClientSizeChangedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnContextMenuChanged(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [ContextMenuChangedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- protected virtual void OnContextMenuStripChanged (EventArgs e) {
- EventHandler eh = (EventHandler)(Events [ContextMenuStripChangedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnControlAdded(ControlEventArgs e) {
- ControlEventHandler eh = (ControlEventHandler)(Events [ControlAddedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnControlRemoved(ControlEventArgs e) {
- ControlEventHandler eh = (ControlEventHandler)(Events [ControlRemovedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnCreateControl() {
- // Override me!
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnCursorChanged(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [CursorChangedEvent]);
- if (eh != null)
- eh (this, e);
-
- for (int i = 0; i < child_controls.Count; i++) child_controls[i].OnParentCursorChanged (e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnDockChanged(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [DockChangedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnDoubleClick(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [DoubleClickEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnDragDrop(DragEventArgs drgevent) {
- DragEventHandler eh = (DragEventHandler)(Events [DragDropEvent]);
- if (eh != null)
- eh (this, drgevent);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnDragEnter(DragEventArgs drgevent) {
- DragEventHandler eh = (DragEventHandler)(Events [DragEnterEvent]);
- if (eh != null)
- eh (this, drgevent);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnDragLeave(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [DragLeaveEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnDragOver(DragEventArgs drgevent) {
- DragEventHandler eh = (DragEventHandler)(Events [DragOverEvent]);
- if (eh != null)
- eh (this, drgevent);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnEnabledChanged(EventArgs e) {
- if (IsHandleCreated) {
- if (this is Form) {
- if (((Form)this).context == null) {
- XplatUI.EnableWindow(window.Handle, Enabled);
- }
- } else {
- XplatUI.EnableWindow(window.Handle, Enabled);
- }
- Refresh();
- }
- EventHandler eh = (EventHandler)(Events [EnabledChangedEvent]);
- if (eh != null)
- eh (this, e);
- foreach (Control c in Controls.GetAllControls ())
- c.OnParentEnabledChanged (e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnEnter(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [EnterEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnFontChanged(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [FontChangedEvent]);
- if (eh != null)
- eh (this, e);
- for (int i=0; i<child_controls.Count; i++) child_controls[i].OnParentFontChanged(e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnForeColorChanged(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [ForeColorChangedEvent]);
- if (eh != null)
- eh (this, e);
- for (int i=0; i<child_controls.Count; i++) child_controls[i].OnParentForeColorChanged(e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnGiveFeedback(GiveFeedbackEventArgs gfbevent) {
- GiveFeedbackEventHandler eh = (GiveFeedbackEventHandler)(Events [GiveFeedbackEvent]);
- if (eh != null)
- eh (this, gfbevent);
- }
-
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnGotFocus(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [GotFocusEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnHandleCreated(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [HandleCreatedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnHandleDestroyed(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [HandleDestroyedEvent]);
- if (eh != null)
- eh (this, e);
- }
- internal void RaiseHelpRequested (HelpEventArgs hevent) {
- OnHelpRequested (hevent);
- }
-
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnHelpRequested(HelpEventArgs hevent) {
- HelpEventHandler eh = (HelpEventHandler)(Events [HelpRequestedEvent]);
- if (eh != null)
- eh (this, hevent);
- }
- protected virtual void OnImeModeChanged(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [ImeModeChangedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnInvalidated(InvalidateEventArgs e) {
- if (UseDoubleBuffering) {
- // should this block be here? seems like it
- // would be more at home in
- // NotifyInvalidated..
- if (e.InvalidRect == ClientRectangle) {
- InvalidateBackBuffer ();
- } else if (backbuffer != null){
- // we need this Inflate call here so
- // that the border of the rectangle is
- // considered Visible (the
- // invalid_region.IsVisible call) in
- // the WM_PAINT handling below.
- Rectangle r = Rectangle.Inflate(e.InvalidRect, 1,1);
- backbuffer.InvalidRegion.Union (r);
- }
- }
- InvalidateEventHandler eh = (InvalidateEventHandler)(Events [InvalidatedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnKeyDown(KeyEventArgs e) {
- KeyEventHandler eh = (KeyEventHandler)(Events [KeyDownEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnKeyPress(KeyPressEventArgs e) {
- KeyPressEventHandler eh = (KeyPressEventHandler)(Events [KeyPressEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnKeyUp(KeyEventArgs e) {
- KeyEventHandler eh = (KeyEventHandler)(Events [KeyUpEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnLayout(LayoutEventArgs levent) {
- LayoutEventHandler eh = (LayoutEventHandler)(Events [LayoutEvent]);
- if (eh != null)
- eh (this, levent);
- Size s = Size;
-
- // If our layout changed our PreferredSize, our parent
- // needs to re-lay us out. However, it's not always possible to
- // be our preferred size, so only try once so we don't loop forever.
- if (Parent != null && AutoSize && !nested_layout && PreferredSize != s) {
- nested_layout = true;
- Parent.PerformLayout ();
- nested_layout = false;
- }
-
- LayoutEngine.Layout (this, levent);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnLeave(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [LeaveEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnLocationChanged(EventArgs e) {
- OnMove(e);
- EventHandler eh = (EventHandler)(Events [LocationChangedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnLostFocus(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [LostFocusEvent]);
- if (eh != null)
- eh (this, e);
- }
- protected virtual void OnMarginChanged (EventArgs e)
- {
- EventHandler eh = (EventHandler)(Events[MarginChangedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- protected virtual void OnMouseCaptureChanged (EventArgs e)
- {
- EventHandler eh = (EventHandler)(Events [MouseCaptureChangedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- protected virtual void OnMouseClick (MouseEventArgs e)
- {
- MouseEventHandler eh = (MouseEventHandler)(Events [MouseClickEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- protected virtual void OnMouseDoubleClick (MouseEventArgs e)
- {
- MouseEventHandler eh = (MouseEventHandler)(Events [MouseDoubleClickEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnMouseDown(MouseEventArgs e) {
- MouseEventHandler eh = (MouseEventHandler)(Events [MouseDownEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnMouseEnter(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [MouseEnterEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnMouseHover(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [MouseHoverEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnMouseLeave(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [MouseLeaveEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnMouseMove(MouseEventArgs e) {
- MouseEventHandler eh = (MouseEventHandler)(Events [MouseMoveEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnMouseUp(MouseEventArgs e) {
- MouseEventHandler eh = (MouseEventHandler)(Events [MouseUpEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnMouseWheel(MouseEventArgs e) {
- MouseEventHandler eh = (MouseEventHandler)(Events [MouseWheelEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnMove(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [MoveEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnNotifyMessage(Message m) {
- // Override me!
- }
- protected virtual void OnPaddingChanged (EventArgs e) {
- EventHandler eh = (EventHandler) (Events [PaddingChangedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnPaint(PaintEventArgs e) {
- PaintEventHandler eh = (PaintEventHandler)(Events [PaintEvent]);
- if (eh != null)
- eh (this, e);
- }
- internal virtual void OnPaintBackgroundInternal(PaintEventArgs e) {
- // Override me
- }
- internal virtual void OnPaintInternal(PaintEventArgs e) {
- // Override me
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnPaintBackground(PaintEventArgs pevent) {
- PaintControlBackground (pevent);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnParentBackColorChanged(EventArgs e) {
- if (background_color.IsEmpty && background_image==null) {
- Invalidate();
- OnBackColorChanged(e);
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnParentBackgroundImageChanged(EventArgs e) {
- Invalidate();
- OnBackgroundImageChanged(e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnParentBindingContextChanged(EventArgs e) {
- if (binding_context==null && Parent != null) {
- binding_context=Parent.binding_context;
- OnBindingContextChanged(e);
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnParentChanged(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [ParentChangedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- protected virtual void OnParentCursorChanged (EventArgs e)
- {
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- protected virtual void OnParentEnabledChanged(EventArgs e) {
- if (is_enabled) {
- OnEnabledChanged(e);
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnParentFontChanged(EventArgs e) {
- if (font==null) {
- Invalidate();
- OnFontChanged(e);
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnParentForeColorChanged(EventArgs e) {
- if (foreground_color.IsEmpty) {
- Invalidate();
- OnForeColorChanged(e);
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnParentRightToLeftChanged(EventArgs e) {
- if (right_to_left==RightToLeft.Inherit) {
- Invalidate();
- OnRightToLeftChanged(e);
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnParentVisibleChanged(EventArgs e) {
- if (is_visible) {
- OnVisibleChanged(e);
- }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnQueryContinueDrag (QueryContinueDragEventArgs qcdevent)
- {
- QueryContinueDragEventHandler eh = (QueryContinueDragEventHandler)(Events [QueryContinueDragEvent]);
- if (eh != null)
- eh (this, qcdevent);
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- protected virtual void OnPreviewKeyDown (PreviewKeyDownEventArgs e)
- {
- PreviewKeyDownEventHandler eh = (PreviewKeyDownEventHandler)(Events[PreviewKeyDownEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- protected virtual void OnPrint (PaintEventArgs e)
- {
- PaintEventHandler eh = (PaintEventHandler)(Events[PaintEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- protected virtual void OnRegionChanged (EventArgs e)
- {
- EventHandler eh = (EventHandler)(Events[RegionChangedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnResize(EventArgs e) {
- OnResizeInternal (e);
- }
-
- internal virtual void OnResizeInternal (EventArgs e) {
- PerformLayout(this, "Bounds");
- EventHandler eh = (EventHandler)(Events [ResizeEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnRightToLeftChanged(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [RightToLeftChangedEvent]);
- if (eh != null)
- eh (this, e);
- for (int i=0; i<child_controls.Count; i++) child_controls[i].OnParentRightToLeftChanged(e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnSizeChanged(EventArgs e) {
- DisposeBackBuffer ();
- OnResize(e);
- EventHandler eh = (EventHandler)(Events [SizeChangedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnStyleChanged(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [StyleChangedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnSystemColorsChanged(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [SystemColorsChangedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnTabIndexChanged(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [TabIndexChangedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnTabStopChanged(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [TabStopChangedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnTextChanged(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [TextChangedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnValidated(EventArgs e) {
- EventHandler eh = (EventHandler)(Events [ValidatedEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnValidating(System.ComponentModel.CancelEventArgs e) {
- CancelEventHandler eh = (CancelEventHandler)(Events [ValidatingEvent]);
- if (eh != null)
- eh (this, e);
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- protected virtual void OnVisibleChanged(EventArgs e) {
- if (Visible)
- CreateControl ();
-
- EventHandler eh = (EventHandler)(Events [VisibleChangedEvent]);
- if (eh != null)
- eh (this, e);
- // We need to tell our kids (including implicit ones)
- foreach (Control c in Controls.GetAllControls ())
- if (c.Visible)
- c.OnParentVisibleChanged (e);
- }
- #endregion // OnXXX methods
- #region Events
- static object AutoSizeChangedEvent = new object ();
- static object BackColorChangedEvent = new object ();
- static object BackgroundImageChangedEvent = new object ();
- static object BackgroundImageLayoutChangedEvent = new object ();
- static object BindingContextChangedEvent = new object ();
- static object CausesValidationChangedEvent = new object ();
- static object ChangeUICuesEvent = new object ();
- static object ClickEvent = new object ();
- static object ClientSizeChangedEvent = new object ();
- static object ContextMenuChangedEvent = new object ();
- static object ContextMenuStripChangedEvent = new object ();
- static object ControlAddedEvent = new object ();
- static object ControlRemovedEvent = new object ();
- static object CursorChangedEvent = new object ();
- static object DockChangedEvent = new object ();
- static object DoubleClickEvent = new object ();
- static object DragDropEvent = new object ();
- static object DragEnterEvent = new object ();
- static object DragLeaveEvent = new object ();
- static object DragOverEvent = new object ();
- static object EnabledChangedEvent = new object ();
- static object EnterEvent = new object ();
- static object FontChangedEvent = new object ();
- static object ForeColorChangedEvent = new object ();
- static object GiveFeedbackEvent = new object ();
- static object GotFocusEvent = new object ();
- static object HandleCreatedEvent = new object ();
- static object HandleDestroyedEvent = new object ();
- static object HelpRequestedEvent = new object ();
- static object ImeModeChangedEvent = new object ();
- static object InvalidatedEvent = new object ();
- static object KeyDownEvent = new object ();
- static object KeyPressEvent = new object ();
- static object KeyUpEvent = new object ();
- static object LayoutEvent = new object ();
- static object LeaveEvent = new object ();
- static object LocationChangedEvent = new object ();
- static object LostFocusEvent = new object ();
- static object MarginChangedEvent = new object ();
- static object MouseCaptureChangedEvent = new object ();
- static object MouseClickEvent = new object ();
- static object MouseDoubleClickEvent = new object ();
- static object MouseDownEvent = new object ();
- static object MouseEnterEvent = new object ();
- static object MouseHoverEvent = new object ();
- static object MouseLeaveEvent = new object ();
- static object MouseMoveEvent = new object ();
- static object MouseUpEvent = new object ();
- static object MouseWheelEvent = new object ();
- static object MoveEvent = new object ();
- static object PaddingChangedEvent = new object ();
- static object PaintEvent = new object ();
- static object ParentChangedEvent = new object ();
- static object PreviewKeyDownEvent = new object ();
- static object QueryAccessibilityHelpEvent = new object ();
- static object QueryContinueDragEvent = new object ();
- static object RegionChangedEvent = new object ();
- static object ResizeEvent = new object ();
- static object RightToLeftChangedEvent = new object ();
- static object SizeChangedEvent = new object ();
- static object StyleChangedEvent = new object ();
- static object SystemColorsChangedEvent = new object ();
- static object TabIndexChangedEvent = new object ();
- static object TabStopChangedEvent = new object ();
- static object TextChangedEvent = new object ();
- static object ValidatedEvent = new object ();
- static object ValidatingEvent = new object ();
- static object VisibleChangedEvent = new object ();
- [Browsable (false)]
- [EditorBrowsable (EditorBrowsableState.Never)]
- public event EventHandler AutoSizeChanged {
- add { Events.AddHandler (AutoSizeChangedEvent, value);}
- remove {Events.RemoveHandler (AutoSizeChangedEvent, value);}
- }
- public event EventHandler BackColorChanged {
- add { Events.AddHandler (BackColorChangedEvent, value); }
- remove { Events.RemoveHandler (BackColorChangedEvent, value); }
- }
- public event EventHandler BackgroundImageChanged {
- add { Events.AddHandler (BackgroundImageChangedEvent, value); }
- remove { Events.RemoveHandler (BackgroundImageChangedEvent, value); }
- }
- public event EventHandler BackgroundImageLayoutChanged {
- add {Events.AddHandler (BackgroundImageLayoutChangedEvent, value);}
- remove {Events.RemoveHandler (BackgroundImageLayoutChangedEvent, value);}
- }
- public event EventHandler BindingContextChanged {
- add { Events.AddHandler (BindingContextChangedEvent, value); }
- remove { Events.RemoveHandler (BindingContextChangedEvent, value); }
- }
- public event EventHandler CausesValidationChanged {
- add { Events.AddHandler (CausesValidationChangedEvent, value); }
- remove { Events.RemoveHandler (CausesValidationChangedEvent, value); }
- }
- public event UICuesEventHandler ChangeUICues {
- add { Events.AddHandler (ChangeUICuesEvent, value); }
- remove { Events.RemoveHandler (ChangeUICuesEvent, value); }
- }
- public event EventHandler Click {
- add { Events.AddHandler (ClickEvent, value); }
- remove { Events.RemoveHandler (ClickEvent, value); }
- }
-
- public event EventHandler ClientSizeChanged {
- add {Events.AddHandler (ClientSizeChangedEvent, value);}
- remove {Events.RemoveHandler (ClientSizeChangedEvent, value);}
- }
- [Browsable (false)]
- public event EventHandler ContextMenuChanged {
- add { Events.AddHandler (ContextMenuChangedEvent, value); }
- remove { Events.RemoveHandler (ContextMenuChangedEvent, value); }
- }
- public event EventHandler ContextMenuStripChanged {
- add { Events.AddHandler (ContextMenuStripChangedEvent, value); }
- remove { Events.RemoveHandler (ContextMenuStripChangedEvent, value);}
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(true)]
- public event ControlEventHandler ControlAdded {
- add { Events.AddHandler (ControlAddedEvent, value); }
- remove { Events.RemoveHandler (ControlAddedEvent, value); }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(true)]
- public event ControlEventHandler ControlRemoved {
- add { Events.AddHandler (ControlRemovedEvent, value); }
- remove { Events.RemoveHandler (ControlRemovedEvent, value); }
- }
- [MWFDescription("Fired when the cursor for the control has been changed"), MWFCategory("PropertyChanged")]
- public event EventHandler CursorChanged {
- add { Events.AddHandler (CursorChangedEvent, value); }
- remove { Events.RemoveHandler (CursorChangedEvent, value); }
- }
- public event EventHandler DockChanged {
- add { Events.AddHandler (DockChangedEvent, value); }
- remove { Events.RemoveHandler (DockChangedEvent, value); }
- }
- public event EventHandler DoubleClick {
- add { Events.AddHandler (DoubleClickEvent, value); }
- remove { Events.RemoveHandler (DoubleClickEvent, value); }
- }
- public event DragEventHandler DragDrop {
- add { Events.AddHandler (DragDropEvent, value); }
- remove { Events.RemoveHandler (DragDropEvent, value); }
- }
- public event DragEventHandler DragEnter {
- add { Events.AddHandler (DragEnterEvent, value); }
- remove { Events.RemoveHandler (DragEnterEvent, value); }
- }
- public event EventHandler DragLeave {
- add { Events.AddHandler (DragLeaveEvent, value); }
- remove { Events.RemoveHandler (DragLeaveEvent, value); }
- }
- public event DragEventHandler DragOver {
- add { Events.AddHandler (DragOverEvent, value); }
- remove { Events.RemoveHandler (DragOverEvent, value); }
- }
- public event EventHandler EnabledChanged {
- add { Events.AddHandler (EnabledChangedEvent, value); }
- remove { Events.RemoveHandler (EnabledChangedEvent, value); }
- }
- public event EventHandler Enter {
- add { Events.AddHandler (EnterEvent, value); }
- remove { Events.RemoveHandler (EnterEvent, value); }
- }
- public event EventHandler FontChanged {
- add { Events.AddHandler (FontChangedEvent, value); }
- remove { Events.RemoveHandler (FontChangedEvent, value); }
- }
- public event EventHandler ForeColorChanged {
- add { Events.AddHandler (ForeColorChangedEvent, value); }
- remove { Events.RemoveHandler (ForeColorChangedEvent, value); }
- }
- public event GiveFeedbackEventHandler GiveFeedback {
- add { Events.AddHandler (GiveFeedbackEvent, value); }
- remove { Events.RemoveHandler (GiveFeedbackEvent, value); }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- public event EventHandler GotFocus {
- add { Events.AddHandler (GotFocusEvent, value); }
- remove { Events.RemoveHandler (GotFocusEvent, value); }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- public event EventHandler HandleCreated {
- add { Events.AddHandler (HandleCreatedEvent, value); }
- remove { Events.RemoveHandler (HandleCreatedEvent, value); }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- public event EventHandler HandleDestroyed {
- add { Events.AddHandler (HandleDestroyedEvent, value); }
- remove { Events.RemoveHandler (HandleDestroyedEvent, value); }
- }
- public event HelpEventHandler HelpRequested {
- add { Events.AddHandler (HelpRequestedEvent, value); }
- remove { Events.RemoveHandler (HelpRequestedEvent, value); }
- }
- public event EventHandler ImeModeChanged {
- add { Events.AddHandler (ImeModeChangedEvent, value); }
- remove { Events.RemoveHandler (ImeModeChangedEvent, value); }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- public event InvalidateEventHandler Invalidated {
- add { Events.AddHandler (InvalidatedEvent, value); }
- remove { Events.RemoveHandler (InvalidatedEvent, value); }
- }
- public event KeyEventHandler KeyDown {
- add { Events.AddHandler (KeyDownEvent, value); }
- remove { Events.RemoveHandler (KeyDownEvent, value); }
- }
- public event KeyPressEventHandler KeyPress {
- add { Events.AddHandler (KeyPressEvent, value); }
- remove { Events.RemoveHandler (KeyPressEvent, value); }
- }
- public event KeyEventHandler KeyUp {
- add { Events.AddHandler (KeyUpEvent, value); }
- remove { Events.RemoveHandler (KeyUpEvent, value); }
- }
- public event LayoutEventHandler Layout {
- add { Events.AddHandler (LayoutEvent, value); }
- remove { Events.RemoveHandler (LayoutEvent, value); }
- }
- public event EventHandler Leave {
- add { Events.AddHandler (LeaveEvent, value); }
- remove { Events.RemoveHandler (LeaveEvent, value); }
- }
- public event EventHandler LocationChanged {
- add { Events.AddHandler (LocationChangedEvent, value); }
- remove { Events.RemoveHandler (LocationChangedEvent, value); }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- public event EventHandler LostFocus {
- add { Events.AddHandler (LostFocusEvent, value); }
- remove { Events.RemoveHandler (LostFocusEvent, value); }
- }
- public event EventHandler MarginChanged {
- add { Events.AddHandler (MarginChangedEvent, value); }
- remove {Events.RemoveHandler (MarginChangedEvent, value); }
- }
- public event EventHandler MouseCaptureChanged {
- add { Events.AddHandler (MouseCaptureChangedEvent, value); }
- remove { Events.RemoveHandler (MouseCaptureChangedEvent, value); }
- }
- public event MouseEventHandler MouseClick
- {
- add { Events.AddHandler (MouseClickEvent, value); }
- remove { Events.RemoveHandler (MouseClickEvent, value); }
- }
- public event MouseEventHandler MouseDoubleClick
- {
- add { Events.AddHandler (MouseDoubleClickEvent, value); }
- remove { Events.RemoveHandler (MouseDoubleClickEvent, value); }
- }
- public event MouseEventHandler MouseDown {
- add { Events.AddHandler (MouseDownEvent, value); }
- remove { Events.RemoveHandler (MouseDownEvent, value); }
- }
- public event EventHandler MouseEnter {
- add { Events.AddHandler (MouseEnterEvent, value); }
- remove { Events.RemoveHandler (MouseEnterEvent, value); }
- }
- public event EventHandler MouseHover {
- add { Events.AddHandler (MouseHoverEvent, value); }
- remove { Events.RemoveHandler (MouseHoverEvent, value); }
- }
- public event EventHandler MouseLeave {
- add { Events.AddHandler (MouseLeaveEvent, value); }
- remove { Events.RemoveHandler (MouseLeaveEvent, value); }
- }
- public event MouseEventHandler MouseMove {
- add { Events.AddHandler (MouseMoveEvent, value); }
- remove { Events.RemoveHandler (MouseMoveEvent, value); }
- }
- public event MouseEventHandler MouseUp {
- add { Events.AddHandler (MouseUpEvent, value); }
- remove { Events.RemoveHandler (MouseUpEvent, value); }
- }
- [EditorBrowsable(EditorBrowsableState.Advanced)]
- [Browsable(false)]
- public event MouseEventHandler MouseWheel {
- add { Events.AddHandler (MouseWheelEvent, value); }
- remove { Events.RemoveHandler (MouseWheelEvent, value); }
- }
- public event EventHandler Move {
- add { Events.AddHandler (MoveEvent, value); }
- remove { Events.RemoveHandler (MoveEvent, value); }
- }
- public event EventHandler PaddingChanged
- {
- add { Events.AddHandler (PaddingChangedEvent, value); }
- remove { Events.RemoveHandler (PaddingChangedEvent, value); }
- }
- public event PaintEventHandler Paint {
- add { Events.AddHandler (PaintEvent, value); }
- remove { Events.RemoveHandler (PaintEvent, value); }
- }
- public event EventHandler ParentChanged {
- add { Events.AddHandler (ParentChangedEvent, value); }
- remove { Events.RemoveHandler (ParentChangedEvent, value); }
- }
- public event PreviewKeyDownEventHandler PreviewKeyDown {
- add { Events.AddHandler (PreviewKeyDownEvent, value); }
- remove { Events.RemoveHandler (PreviewKeyDownEvent, value); }
- }
- public event QueryAccessibilityHelpEventHandler QueryAccessibilityHelp {
- add { Events.AddHandler (QueryAccessibilityHelpEvent, value); }
- remove { Events.RemoveHandler (QueryAccessibilityHelpEvent, value); }
- }
- public event QueryContinueDragEventHandler QueryContinueDrag {
- add { Events.AddHandler (QueryContinueDragEvent, value); }
- remove { Events.RemoveHandler (QueryContinueDragEvent, value); }
- }
- public event EventHandler RegionChanged {
- add { Events.AddHandler (RegionChangedEvent, value); }
- remove { Events.RemoveHandler (RegionChangedEvent, value); }
- }
- [EditorBrowsable (EditorBrowsableState.Advanced)]
- public event EventHandler Resize {
- add { Events.AddHandler (ResizeEvent, value); }
- remove { Events.RemoveHandler (ResizeEvent, value); }
- }
- public event EventHandler RightToLeftChanged {
- add { Events.AddHandler (RightToLeftChangedEvent, value); }
- remove { Events.RemoveHandler (RightToLeftChangedEvent, value); }
- }
- public event EventHandler SizeChanged {
- add { Events.AddHandler (SizeChangedEvent, value); }
- remove { Events.RemoveHandler (SizeChangedEvent, value); }
- }
- public event EventHandler StyleChanged {
- add { Events.AddHandler (StyleChangedEvent, value); }
- remove { Events.RemoveHandler (StyleChangedEvent, value); }
- }
- public event EventHandler SystemColorsChanged {
- add { Events.AddHandler (SystemColorsChangedEvent, value); }
- remove { Events.RemoveHandler (SystemColorsChangedEvent, value); }
- }
- public event EventHandler TabIndexChanged {
- add { Events.AddHandler (TabIndexChangedEvent, value); }
- remove { Events.RemoveHandler (TabIndexChangedEvent, value); }
- }
- public event EventHandler TabStopChanged {
- add { Events.AddHandler (TabStopChangedEvent, value); }
- remove { Events.RemoveHandler (TabStopChangedEvent, value); }
- }
- public event EventHandler TextChanged {
- add { Events.AddHandler (TextChangedEvent, value); }
- remove { Events.RemoveHandler (TextChangedEvent, value); }
- }
- public event EventHandler Validated {
- add { Events.AddHandler (ValidatedEvent, value); }
- remove { Events.RemoveHandler (ValidatedEvent, value); }
- }
- public event CancelEventHandler Validating {
- add { Events.AddHandler (ValidatingEvent, value); }
- remove { Events.RemoveHandler (ValidatingEvent, value); }
- }
- public event EventHandler VisibleChanged {
- add { Events.AddHandler (VisibleChangedEvent, value); }
- remove { Events.RemoveHandler (VisibleChangedEvent, value); }
- }
- #endregion // Events
- }
- }