/source/library/Interlace.DevExpress/Binding/Views/EnabledView.cs
C# | 127 lines | 79 code | 20 blank | 28 comment | 9 complexity | f1467fbca783449b789377bfbe0d0302 MD5 | raw file
- #region Using Directives and Copyright Notice
-
- // Copyright (c) 2007-2010, Computer Consultancy Pty Ltd
- // All rights reserved.
- //
- // Redistribution and use in source and binary forms, with or without
- // modification, are permitted provided that the following conditions are met:
- // * Redistributions of source code must retain the above copyright
- // notice, this list of conditions and the following disclaimer.
- // * Redistributions in binary form must reproduce the above copyright
- // notice, this list of conditions and the following disclaimer in the
- // documentation and/or other materials provided with the distribution.
- // * Neither the name of the Computer Consultancy Pty Ltd nor the
- // names of its contributors may be used to endorse or promote products
- // derived from this software without specific prior written permission.
- //
- // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- // ARE DISCLAIMED. IN NO EVENT SHALL COMPUTER CONSULTANCY PTY LTD BE LIABLE
- // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- // LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- // OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- // DAMAGE.
-
- using System;
- using System.Collections.Generic;
- using System.Reflection;
- using System.Text;
- using System.Windows.Forms;
-
- using DevExpress.XtraBars;
-
- #endregion
-
- namespace Interlace.Binding.Views
- {
- public class EnabledView : BinderViewBase
- {
- delegate void EnabledSetDelegate(bool enabled);
-
- EnabledSetDelegate _setDelegate;
- bool _unboundValue = false;
-
- public EnabledView(params Control[] boundControls)
- {
- ViewToModelDisabled = true;
-
- // Take a private copy:
- Control[] boundControlsCopy = new Control[boundControls.Length];
- Array.Copy(boundControls, boundControlsCopy, boundControlsCopy.Length);
-
- _setDelegate = delegate(bool enabled)
- {
- foreach (Control control in boundControlsCopy)
- {
- control.Enabled = enabled;
- }
- };
- }
-
- public EnabledView(params BarItem[] boundBarItems)
- {
- ViewToModelDisabled = true;
-
- // Take a private copy:
- BarItem[] boundBarItemsCopy = new BarItem[boundBarItems.Length];
- Array.Copy(boundBarItems, boundBarItemsCopy, boundBarItemsCopy.Length);
-
- _setDelegate = delegate(bool enabled)
- {
- foreach (BarItem barItem in boundBarItemsCopy)
- {
- if (barItem.Enabled != enabled) barItem.Enabled = enabled;
- }
- };
- }
-
- public static EnabledView FromReflection<T>(params T[] objects)
- {
- // Take a private copy:
- T[] objectsCopy = new T[objects.Length];
- Array.Copy(objects, objectsCopy, objects.Length);
-
- Type objectType = typeof(T);
- PropertyInfo property = objectType.GetProperty("Enabled");
-
- return new EnabledView(delegate(bool enabled)
- {
- foreach (T item in objectsCopy)
- {
- property.SetValue(item, enabled, null);
- }
- });
- }
-
- EnabledView(EnabledSetDelegate setDelegate)
- {
- ViewToModelDisabled = true;
-
- _setDelegate = setDelegate;
- }
-
- protected override void OnModelChanged(object value)
- {
- bool valueToSet;
-
- if (value == BinderNotBound.Value || value == BinderMissingProperty.Value)
- {
- valueToSet = _unboundValue;
- }
- else if (value is bool)
- {
- valueToSet = (bool)value;
- }
- else
- {
- valueToSet = value != null;
- }
-
- _setDelegate(valueToSet);
- }
- }
- }