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117 lines
3.0 KiB
C#
117 lines
3.0 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Drawing;
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namespace Mesnac.Docking
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{
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public sealed class NestedPaneCollection : ReadOnlyCollection<DockPane>
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{
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private INestedPanesContainer m_container;
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private VisibleNestedPaneCollection m_visibleNestedPanes;
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internal NestedPaneCollection(INestedPanesContainer container)
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: base(new List<DockPane>())
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{
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m_container = container;
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m_visibleNestedPanes = new VisibleNestedPaneCollection(this);
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}
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public INestedPanesContainer Container
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{
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get { return m_container; }
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}
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public VisibleNestedPaneCollection VisibleNestedPanes
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{
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get { return m_visibleNestedPanes; }
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}
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public DockState DockState
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{
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get { return Container.DockState; }
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}
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public bool IsFloat
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{
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get { return DockState == DockState.Float; }
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}
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internal void Add(DockPane pane)
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{
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if (pane == null)
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return;
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NestedPaneCollection oldNestedPanes = (pane.NestedPanesContainer == null) ? null : pane.NestedPanesContainer.NestedPanes;
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if (oldNestedPanes != null)
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oldNestedPanes.InternalRemove(pane);
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Items.Add(pane);
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if (oldNestedPanes != null)
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oldNestedPanes.CheckFloatWindowDispose();
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}
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private void CheckFloatWindowDispose()
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{
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if (Count == 0 && Container.DockState == DockState.Float)
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{
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FloatWindow floatWindow = (FloatWindow)Container;
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if (!floatWindow.Disposing && !floatWindow.IsDisposed)
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NativeMethods.PostMessage(((FloatWindow)Container).Handle, FloatWindow.WM_CHECKDISPOSE, 0, 0);
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}
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}
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internal void Remove(DockPane pane)
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{
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InternalRemove(pane);
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CheckFloatWindowDispose();
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}
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private void InternalRemove(DockPane pane)
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{
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if (!Contains(pane))
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return;
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NestedDockingStatus statusPane = pane.NestedDockingStatus;
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DockPane lastNestedPane = null;
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for (int i=Count - 1; i> IndexOf(pane); i--)
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{
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if (this[i].NestedDockingStatus.PreviousPane == pane)
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{
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lastNestedPane = this[i];
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break;
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}
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}
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if (lastNestedPane != null)
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{
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int indexLastNestedPane = IndexOf(lastNestedPane);
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Items.Remove(lastNestedPane);
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Items[IndexOf(pane)] = lastNestedPane;
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NestedDockingStatus lastNestedDock = lastNestedPane.NestedDockingStatus;
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lastNestedDock.SetStatus(this, statusPane.PreviousPane, statusPane.Alignment, statusPane.Proportion);
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for (int i=indexLastNestedPane - 1; i>IndexOf(lastNestedPane); i--)
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{
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NestedDockingStatus status = this[i].NestedDockingStatus;
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if (status.PreviousPane == pane)
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status.SetStatus(this, lastNestedPane, status.Alignment, status.Proportion);
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}
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}
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else
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Items.Remove(pane);
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statusPane.SetStatus(null, null, DockAlignment.Left, 0.5);
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statusPane.SetDisplayingStatus(false, null, DockAlignment.Left, 0.5);
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statusPane.SetDisplayingBounds(Rectangle.Empty, Rectangle.Empty, Rectangle.Empty);
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}
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public DockPane GetDefaultPreviousPane(DockPane pane)
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{
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for (int i=Count-1; i>=0; i--)
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if (this[i] != pane)
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return this[i];
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return null;
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}
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}
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}
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