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DockContentCollection.cs
资源名称：WeifenLuo.WinFormsUI.Docking.rar　[点击查看]
上传用户：szlfmled
上传日期：2020-11-22
资源大小：978k
文件大小：4k
源码类别：

C#编程

开发平台：

C#

DockContentCollection.cs：源码内容
  1. using System;
  2. using System.Collections;
  3. using System.Collections.Generic;
  4. using System.Collections.ObjectModel;
  6. namespace WeifenLuo.WinFormsUI.Docking
  7. {
  8.     public class DockContentCollection : ReadOnlyCollection<IDockContent>
  9.     {
  10.         private static List<IDockContent> _emptyList = new List<IDockContent>(0);
  12.         internal DockContentCollection()
  13.             : base(new List<IDockContent>())
  14.         {
  15.         }
  17.         internal DockContentCollection(DockPane pane)
  18.             : base(_emptyList)
  19.         {
  20.             m_dockPane = pane;
  21.         }
  23.         private DockPane m_dockPane = null;
  24.         private DockPane DockPane
  25.         {
  26.             get { return m_dockPane; }
  27.         }
  29.         public new IDockContent this[int index]
  30.         {
  31.             get
  32.             {
  33.                 if (DockPane == null)
  34.                     return Items[index] as IDockContent;
  35.                 else
  36.                     return GetVisibleContent(index);
  37.             }
  38.         }
  40.         internal int Add(IDockContent content)
  41.         {
  42. #if DEBUG
  43. if (DockPane != null)
  44. throw new InvalidOperationException();
  45. #endif
  47.             if (Contains(content))
  48.                 return IndexOf(content);
  50.             Items.Add(content);
  51.             return Count - 1;
  52.         }
  54.         internal void AddAt(IDockContent content, int index)
  55.         {
  56. #if DEBUG
  57. if (DockPane != null)
  58. throw new InvalidOperationException();
  59. #endif
  61.             if (index < 0 || index > Items.Count - 1)
  62.                 return;
  64.             if (Contains(content))
  65.                 return;
  67.             Items.Insert(index, content);
  68.         }
  70.         public new bool Contains(IDockContent content)
  71.         {
  72.             if (DockPane == null)
  73.                 return Items.Contains(content);
  74.             else
  75.                 return (GetIndexOfVisibleContents(content) != -1);
  76.         }
  78.         public new int Count
  79.         {
  80.             get
  81.             {
  82.                 if (DockPane == null)
  83.                     return base.Count;
  84.                 else
  85.                     return CountOfVisibleContents;
  86.             }
  87.         }
  89.         public new int IndexOf(IDockContent content)
  90.         {
  91.             if (DockPane == null)
  92.             {
  93.                 if (!Contains(content))
  94.                     return -1;
  95.                 else
  96.                     return Items.IndexOf(content);
  97.             }
  98.             else
  99.                 return GetIndexOfVisibleContents(content);
  100.         }
  102.         internal void Remove(IDockContent content)
  103.         {
  104.             if (DockPane != null)
  105.                 throw new InvalidOperationException();
  107.             if (!Contains(content))
  108.                 return;
  110.             Items.Remove(content);
  111.         }
  113.         private int CountOfVisibleContents
  114.         {
  115.             get
  116.             {
  117. #if DEBUG
  118. if (DockPane == null)
  119. throw new InvalidOperationException();
  120. #endif
  122.                 int count = 0;
  123.                 foreach (IDockContent content in DockPane.Contents)
  124.                 {
  125.                     if (content.DockHandler.DockState == DockPane.DockState)
  126.                         count++;
  127.                 }
  128.                 return count;
  129.             }
  130.         }
  132.         private IDockContent GetVisibleContent(int index)
  133.         {
  134. #if DEBUG
  135. if (DockPane == null)
  136. throw new InvalidOperationException();
  137. #endif
  139.             int currentIndex = -1;
  140.             foreach (IDockContent content in DockPane.Contents)
  141.             {
  142.                 if (content.DockHandler.DockState == DockPane.DockState)
  143.                     currentIndex++;
  145.                 if (currentIndex == index)
  146.                     return content;
  147.             }
  148.             throw (new ArgumentOutOfRangeException());
  149.         }
  151.         private int GetIndexOfVisibleContents(IDockContent content)
  152.         {
  153. #if DEBUG
  154. if (DockPane == null)
  155. throw new InvalidOperationException();
  156. #endif
  158.             if (content == null)
  159.                 return -1;
  161.             int index = -1;
  162.             foreach (IDockContent c in DockPane.Contents)
  163.             {
  164.                 if (c.DockHandler.DockState == DockPane.DockState)
  165.                 {
  166.                     index++;
  168.                     if (c == content)
  169.                         return index;
  170.                 }
  171.             }
  172.             return -1;
  173.         }
  174.     }
  175. }