| 1 | using System;
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| 2 | using System.Collections;
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| 3 | using System.Collections.Generic;
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| 4 | using System.Collections.ObjectModel;
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| 5 |
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| 6 | namespace WeifenLuo.WinFormsUI.Docking
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| 7 | {
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| 8 | public class DockContentCollection : ReadOnlyCollection<IDockContent>
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| 9 | {
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| 10 | private static List<IDockContent> _emptyList = new List<IDockContent>(0);
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| 11 |
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| 12 | internal DockContentCollection()
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| 13 | : base(new List<IDockContent>())
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| 14 | {
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| 15 | }
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| 16 |
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| 17 | internal DockContentCollection(DockPane pane)
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| 18 | : base(_emptyList)
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| 19 | {
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| 20 | m_dockPane = pane;
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| 21 | }
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| 22 |
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| 23 | private DockPane m_dockPane = null;
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| 24 | private DockPane DockPane
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| 25 | {
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| 26 | get { return m_dockPane; }
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| 27 | }
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| 28 |
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| 29 | public new IDockContent this[int index]
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| 30 | {
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| 31 | get
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| 32 | {
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| 33 | if (DockPane == null)
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| 34 | return Items[index] as IDockContent;
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| 35 | else
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| 36 | return GetVisibleContent(index);
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| 37 | }
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| 38 | }
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| 39 |
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| 40 | internal int Add(IDockContent content)
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| 41 | {
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| 42 | #if DEBUG
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| 43 | if (DockPane != null)
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| 44 | throw new InvalidOperationException();
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| 45 | #endif
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| 46 |
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| 47 | if (Contains(content))
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| 48 | return IndexOf(content);
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| 49 |
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| 50 | Items.Add(content);
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| 51 | return Count - 1;
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| 52 | }
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| 53 |
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| 54 | internal void AddAt(IDockContent content, int index)
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| 55 | {
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| 56 | #if DEBUG
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| 57 | if (DockPane != null)
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| 58 | throw new InvalidOperationException();
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| 59 | #endif
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| 60 |
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| 61 | if (index < 0 || index > Items.Count - 1)
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| 62 | return;
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| 63 |
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| 64 | if (Contains(content))
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| 65 | return;
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| 66 |
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| 67 | Items.Insert(index, content);
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| 68 | }
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| 69 |
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| 70 | public new bool Contains(IDockContent content)
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| 71 | {
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| 72 | if (DockPane == null)
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| 73 | return Items.Contains(content);
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| 74 | else
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| 75 | return (GetIndexOfVisibleContents(content) != -1);
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| 76 | }
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| 77 |
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| 78 | public new int Count
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| 79 | {
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| 80 | get
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| 81 | {
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| 82 | if (DockPane == null)
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| 83 | return base.Count;
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| 84 | else
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| 85 | return CountOfVisibleContents;
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| 86 | }
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| 87 | }
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| 88 |
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| 89 | public new int IndexOf(IDockContent content)
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| 90 | {
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| 91 | if (DockPane == null)
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| 92 | {
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| 93 | if (!Contains(content))
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| 94 | return -1;
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| 95 | else
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| 96 | return Items.IndexOf(content);
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| 97 | }
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| 98 | else
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| 99 | return GetIndexOfVisibleContents(content);
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| 100 | }
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| 101 |
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| 102 | internal void Remove(IDockContent content)
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| 103 | {
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| 104 | if (DockPane != null)
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| 105 | throw new InvalidOperationException();
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| 106 |
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| 107 | if (!Contains(content))
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| 108 | return;
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| 109 |
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| 110 | Items.Remove(content);
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| 111 | }
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| 112 |
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| 113 | private int CountOfVisibleContents
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| 114 | {
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| 115 | get
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| 116 | {
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| 117 | #if DEBUG
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| 118 | if (DockPane == null)
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| 119 | throw new InvalidOperationException();
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| 120 | #endif
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| 121 |
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| 122 | int count = 0;
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| 123 | foreach (IDockContent content in DockPane.Contents)
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| 124 | {
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| 125 | if (content.DockHandler.DockState == DockPane.DockState)
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| 126 | count++;
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| 127 | }
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| 128 | return count;
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| 129 | }
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| 130 | }
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| 131 |
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| 132 | private IDockContent GetVisibleContent(int index)
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| 133 | {
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| 134 | #if DEBUG
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| 135 | if (DockPane == null)
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| 136 | throw new InvalidOperationException();
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| 137 | #endif
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| 138 |
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| 139 | int currentIndex = -1;
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| 140 | foreach (IDockContent content in DockPane.Contents)
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| 141 | {
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| 142 | if (content.DockHandler.DockState == DockPane.DockState)
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| 143 | currentIndex++;
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| 144 |
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| 145 | if (currentIndex == index)
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| 146 | return content;
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| 147 | }
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| 148 | throw (new ArgumentOutOfRangeException());
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| 149 | }
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| 150 |
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| 151 | private int GetIndexOfVisibleContents(IDockContent content)
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| 152 | {
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| 153 | #if DEBUG
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| 154 | if (DockPane == null)
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| 155 | throw new InvalidOperationException();
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| 156 | #endif
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| 157 |
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| 158 | if (content == null)
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| 159 | return -1;
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| 160 |
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| 161 | int index = -1;
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| 162 | foreach (IDockContent c in DockPane.Contents)
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| 163 | {
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| 164 | if (c.DockHandler.DockState == DockPane.DockState)
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| 165 | {
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| 166 | index++;
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| 167 |
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| 168 | if (c == content)
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| 169 | return index;
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| 170 | }
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| 171 | }
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| 172 | return -1;
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| 173 | }
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| 174 | }
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| 175 | }
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