/Scenes/UserInterfaces/Controls/TODODropdownBox.cs

  1using System.Collections.Generic;
  2using Delta.Engine;
  3using Delta.Scenes.Enums;
  4using Delta.Utilities.Datatypes;
  5using NUnit.Framework;
  6
  7namespace Delta.Scenes.UserInterfaces.Controls
  8{
  9	/// <summary>
 10	/// Dropdownbox
 11	/// </summary>
 12	public class TODODropdownBox : TextBox
 13	{
 14		#region Constants
 15		/// <summary>
 16		/// The name of the class which is saved in the content data to
 17		/// describe and "detect" the data in the loading code again.
 18		/// </summary>
 19		private const string SavingClassName = "UIDropdownBox";
 20
 21		/// <summary>
 22		/// The current version of the implementation of this class.
 23		/// </summary>
 24		private const int WorkingVersion = 1;
 25		#endregion
 26
 27		#region Delegates
 28		/// <summary>
 29		/// The delegate declaration for the "DropdownBox.IndexChanged" event.
 30		/// </summary>
 31		/// <param name="newIndex"></param>
 32		public delegate void SelectedIndexChangedDelegate(int newIndex);
 33		#endregion
 34
 35		#region Items (Public)
 36		/// <summary>
 37		/// Items
 38		/// </summary>
 39		public object[] Items
 40		{
 41			get
 42			{
 43				return items;
 44			}
 45			set
 46			{
 47				items = value;
 48
 49				//for (int i = 0; i < itemsLabel.Count; i++)
 50				//{
 51				//  itemsLabel[i].Dispose();
 52				//}
 53				//itemsLabel.Clear();
 54
 55				//isDropDownListVisible = false;
 56
 57				//if (items == null ||
 58				//    items.Length == 0)
 59				//{
 60				//  SelectedIndex = -1;
 61				//  return;
 62				//} // if
 63
 64				//for (int i = 0; i < Items.Length; i++)
 65				//{
 66				//  Label item = new Label
 67				//  {
 68				//    IsAutoSizing = false,
 69				//    IsTextClipped = true,
 70				//    Text = Items[i].ToString()
 71				//  };
 72
 73				//  item.Clicked += OnItemClicked;
 74
 75				//  itemsLabel.Add(item);
 76				//  Add(item);
 77				//} // for
 78
 79				SelectedIndex = 0;
 80			} // set
 81		}
 82		#endregion
 83
 84		#region SelectedItem (Public)
 85		/// <summary>
 86		/// Selected item
 87		/// </summary>
 88		public object SelectedItem
 89		{
 90			get;
 91			private set;
 92		}
 93		#endregion
 94
 95		#region SelectedIndex (Public)
 96		/// <summary>
 97		/// Selected index
 98		/// </summary>
 99		public int SelectedIndex
100		{
101			get
102			{
103				return selectedIndex;
104			}
105			set
106			{
107				selectedIndex = value;
108
109				if (selectedIndex < 0)
110				{
111					SelectedItem = "'null'";
112				}
113				else
114				{
115					SelectedItem = Items[selectedIndex];
116				}
117
118				// Set the new text
119				Text = SelectedItem.ToString();
120
121				// Call the event
122				if (SelectionChanged != null)
123				{
124					SelectionChanged.Invoke(selectedIndex);
125				}
126			} // set
127		}
128		#endregion
129
130		#region Protected
131
132		#region ExpanderArea (Protected)
133		/// <summary>
134		/// Expander area
135		/// </summary>
136		protected internal Rectangle ExpanderArea
137		{
138			get
139			{
140				// Calc rotation
141				Size size = new Size(Size.Height);
142				Point pos = DrawArea.TopRight - DrawArea.Center;
143				pos += size * 0.5f;
144				pos.Rotate(Rotation);
145				pos -= size * 0.5f;
146				pos += DrawArea.Center;
147
148				return new Rectangle(pos, size);
149			} // get
150		}
151		#endregion
152
153		#endregion
154
155		#region Private
156
157		#region items (Private)
158		/// <summary>
159		/// Items
160		/// </summary>
161		private object[] items;
162		#endregion
163
164		#region selectedIndex (Private)
165		/// <summary>
166		/// Selected index
167		/// </summary>
168		private int selectedIndex;
169		#endregion
170
171		#region itemsLabel (Private)
172		/// <summary>
173		/// Items label
174		/// </summary>
175		private readonly List<Label> itemsLabel;
176		#endregion
177
178		#endregion
179
180		#region Constructors
181		/// <summary>
182		/// Create dropdownbox
183		/// </summary>
184		public TODODropdownBox()
185		{
186			itemsLabel = new List<Label>();
187			IsReadOnly = true;
188			Items = new object[0];
189		}
190		#endregion
191
192		#region SelectionChanged (Event)
193		/// <summary>
194		/// Occurs every time the selected object resp index is changed.
195		/// </summary>
196		public event SelectedIndexChangedDelegate SelectionChanged;
197		#endregion
198
199		#region Methods (Private)
200
201		#region ShowDropDownList
202		/// <summary>
203		/// Draw drop down list
204		/// </summary>
205		private void ShowDropDownList()
206		{
207			if (Items == null)
208			{
209				return;
210			}
211
212			float rotation = Rotation;
213			Rotation = 0;
214
215			// Add the items as labels in this ui control
216			//for (int i = 0; i < Items.Length; i++)
217			//{
218			//	Label item = new Label();
219			//	AddChild(item);
220			//	item.IsAutoSizing = false;
221			//	item.IsTextClipped = true;
222			//	item.Text = Items[i].ToString();
223			//	item.Size = new Size(Size.Width, TextFont.LineHeight);
224
225			//	Point pos = new Point(0, Size.Height + item.Size.Height * i) -
226			//		DrawingArea.Center;
227			//	pos += item.Size * 0.5f;
228			//	pos.Rotate(Rotation);
229			//	pos -= item.Size * 0.5f;
230			//	pos += DrawingArea.Center;
231
232			//	item.LocalPosition = pos;
233
234			//	item.Clicked += new ControlEvent(OnItemClicked);
235
236			//	itemsLabel.Add(item);
237			//} // for
238
239			for (int i = 0; i < itemsLabel.Count; i++)
240			{
241				itemsLabel[i].Size = new Size(Size.Width, TextFont.LineHeight);
242
243				Point pos = new Point(0, Size.Height + itemsLabel[i].Size.Height * i) -
244				            DrawArea.Center;
245				pos += itemsLabel[i].Size * 0.5f;
246				pos.Rotate(Rotation);
247				pos -= itemsLabel[i].Size * 0.5f;
248				pos += DrawArea.Center;
249
250				itemsLabel[i].LocalPosition = pos;
251
252				//AddChild(itemsLabel[i]);
253				//itemsLabel[i].IsEnabled = true;
254				//itemsLabel[i].IsVisible = true;
255
256				itemsLabel[i].State = ElementState.Enabled;
257			} // for
258
259			Rotation = rotation;
260			// ToEval:
261			//isDropDownListVisible = true;
262		}
263		#endregion
264
265		// ShowDropDownList()
266
267		#region HideDropDownList
268		/// <summary>
269		/// Hide drop down list
270		/// </summary>
271		private void HideDropDownList()
272		{
273			if (itemsLabel == null)
274			{
275				return;
276			}
277
278			// Destroy all item labels
279			for (int i = 0; i < itemsLabel.Count; i++)
280			{
281				//itemsLabel[i].Destroy();
282				//itemsLabel[i].IsEnabled = false;
283				//itemsLabel[i].IsVisible = false;
284				itemsLabel[i].State = ElementState.Invisible;
285			} // for
286			//itemsLabel.Clear();
287
288			// ToEval:
289			//isDropDownListVisible = false;
290		}
291		#endregion
292
293		#endregion
294
295		/// <summary>
296		/// Tests for DropdownBox controls
297		/// </summary>
298		[Category("Visual")]
299		internal class DropdownBoxTests
300		{
301			#region DisplayDropdownbox (Static)
302			/// <summary>
303			/// Dropdownbox label
304			/// </summary>
305			[Test]
306			public static void DisplayDropdownbox()
307			{
308				// Init the Dropdownbox
309				TODODropdownBox testDropdownBox = new TODODropdownBox
310				{
311					Items = new[]
312					{
313						"Hallo",
314						"Delta",
315						"blaaaaaaaaaaaaaaaa!!!"
316					},
317					LocalArea = new Rectangle(0.25f, 0.25f, 0.4f, 0.075f),
318				};
319
320				Screen testScene = new Screen();
321				testScene.Add(testDropdownBox);
322				// Open now the scene to "activate" for the test
323				testScene.Open();
324
325				// Just start the game screen that has been setup so far.
326				Application.Start();
327			}
328			#endregion
329
330			#region DisplayNonAutoSizeDropdownbox (Static)
331			/// <summary>
332			/// Display non auto size dropdownbox
333			/// </summary>
334			[Test]
335			public static void DisplayNonAutoSizeDropdownbox()
336			{
337				// Init the Dropdownbox
338				TODODropdownBox testDropdownBox = new TODODropdownBox
339				{
340					Items = new[]
341					{
342						"Hallo",
343						"Delta",
344						"blaaaaaaaaaaaaaaaa!!!"
345					},
346					LocalArea = new Rectangle(0.25f, 0.25f, 0.2f, 0.05f),
347				};
348
349				Screen testScene = new Screen();
350				testScene.Add(testDropdownBox);
351				// Open now the scene to "activate" for the test
352				testScene.Open();
353
354				Application.Start();
355			}
356			#endregion
357
358			#region DisplayRotatedDropdownbox (Static)
359			/// <summary>
360			/// Display rotated dropdownbox
361			/// </summary>
362			[Test]
363			public static void DisplayRotatedDropdownbox()
364			{
365				// Init the Dropdownbox
366				TODODropdownBox testDropdownBox = new TODODropdownBox
367				{
368					Items = new[]
369					{
370						"Hallo",
371						"Delta",
372						"blaaaaaaaaaaaaaaaa!!!"
373					},
374					LocalArea = new Rectangle(0.25f, 0.25f, 0.4f, 0.075f),
375					Rotation = 45,
376				};
377
378				Screen testScene = new Screen();
379				testScene.Add(testDropdownBox);
380				// Open now the scene to "activate" for the test
381				testScene.Open();
382
383				Application.Start();
384			}
385			#endregion
386		}
387	}
388}
389