dockpane.cs

Fireball.CodeEditor is an source code editor control derived from the best compona SyntaxBox Control

		/// <include file='CodeDoc\DockPane.xml' path='//CodeDoc/Class[@name="DockPane"]/Event[@name="IsActiveDocumentPaneChanged"]/*'/>
		public event EventHandler IsActiveDocumentPaneChanged
		{
			add	{	Events.AddHandler(IsActiveDocumentPaneChangedEvent, value);	}
			remove	{	Events.RemoveHandler(IsActiveDocumentPaneChangedEvent, value);	}
		}
		/// <include file='CodeDoc\DockPane.xml' path='//CodeDoc/Class[@name="DockPane"]/Method[@name="OnIsActiveDocumentPaneChanged(EventArgs)"]/*'/>
		protected virtual void OnIsActiveDocumentPaneChanged(EventArgs e)
		{
			EventHandler handler = (EventHandler)Events[IsActiveDocumentPaneChangedEvent];
			if (handler != null)
				handler(this, e);
		}

		/// <include file='CodeDoc\DockPane.xml' path='//CodeDoc/Class[@name="DockPane"]/Property[@name="DockWindow"]/*'/>
		public DockWindow DockWindow
		{
			get	{	return (m_nestedDockingStatus.DockList == null) ? null : m_nestedDockingStatus.DockList.Container as DockWindow;	}
			set
			{
				DockWindow oldValue = DockWindow;
				if (oldValue == value)
					return;

				AddToDockList(value);
			}
		}

		/// <include file='CodeDoc\DockPane.xml' path='//CodeDoc/Class[@name="DockPane"]/Property[@name="FloatWindow"]/*'/>
		public FloatWindow FloatWindow
		{
			get	{	return (m_nestedDockingStatus.DockList == null) ? null : m_nestedDockingStatus.DockList.Container as FloatWindow;	}
			set
			{
				FloatWindow oldValue = FloatWindow;
				if (oldValue == value)
					return;

				AddToDockList(value);
			}
		}

		private NestedDockingStatus m_nestedDockingStatus;
		/// <include file='CodeDoc\DockPane.xml' path='//CodeDoc/Class[@name="DockPane"]/Property[@name="NestedDockingStatus"]/*'/>
		public NestedDockingStatus NestedDockingStatus
		{
			get	{	return m_nestedDockingStatus;	}
		}
	
		private bool m_isFloat;
		/// <include file='CodeDoc\DockPane.xml' path='//CodeDoc/Class[@name="DockPane"]/Property[@name="IsFloat"]/*'/>
		public bool IsFloat
		{
			get	{	return m_isFloat;	}
		}

		/// <include file='CodeDoc\DockPane.xml' path='//CodeDoc/Class[@name="DockPane"]/Property[@name="DockListContainer"]/*'/>
		public IDockListContainer DockListContainer
		{
			get
			{
				if (NestedDockingStatus.DockList == null)
					return null;
				else
					return NestedDockingStatus.DockList.Container;
			}
		}

		private DockState m_dockState = DockState.Unknown;
		/// <include file='CodeDoc\DockPane.xml' path='//CodeDoc/Class[@name="DockPane"]/Property[@name="DockState"]/*'/>
		public DockState DockState
		{
			get	{	return m_dockState;	}
			set
			{
				SetDockState(value);
			}
		}

		/// <include file='CodeDoc\DockPane.xml' path='//CodeDoc/Class[@name="DockPane"]/Method[@name="SetDockState(DockState)"]/*'/>
		public DockPane SetDockState(DockState value)
		{
			if (value == DockState.Unknown || value == DockState.Hidden)
				throw new InvalidOperationException(ResourceHelper.GetString("DockPane.SetDockState.InvalidState"));

			if ((value == DockState.Float) == this.IsFloat)
			{
				InternalSetDockState(value);
				return this;
			}

			if (DisplayingContents.Count == 0)
				return null;

			IDockableWindow firstContent = null;
			for (int i=0; i<DisplayingContents.Count; i++)
			{
				IDockableWindow content = DisplayingContents[i];
				if (content.DockHandler.IsDockStateValid(value))
				{
					firstContent = content;
					break;
				}
			}
			if (firstContent == null)
				return null;

			firstContent.DockHandler.DockState = value;
			DockPane pane = firstContent.DockHandler.Pane;
			DockPanel.SuspendLayout(true);
			for (int i=0; i<DisplayingContents.Count; i++)
			{
				IDockableWindow content = DisplayingContents[i];
				if (content.DockHandler.IsDockStateValid(value))
					content.DockHandler.Pane = pane;
			}
			DockPanel.ResumeLayout(true, true);
			return pane;
		}

		private void InternalSetDockState(DockState value)
		{
			if (m_dockState == value)
				return;

			DockState oldDockState = m_dockState;
			IDockListContainer oldContainer = DockListContainer;

			m_dockState = value;

			SuspendRefreshStateChange();
			if (!IsFloat)
				DockWindow = DockPanel.DockWindows[DockState];
			else if (FloatWindow == null)
				FloatWindow = DockPanel.FloatWindowFactory.CreateFloatWindow(DockPanel, this);

			ResumeRefreshStateChange(oldContainer, oldDockState);
		}

		private int m_countRefreshStateChange = 0;
		private void SuspendRefreshStateChange()
		{
			m_countRefreshStateChange ++;
			DockPanel.SuspendLayout(true);
		}

		private void ResumeRefreshStateChange()
		{
			m_countRefreshStateChange --;
			#if DEBUG
			if (m_countRefreshStateChange < 0)
				throw new InvalidOperationException();
			#endif
			if (m_countRefreshStateChange < 0)
				m_countRefreshStateChange = 0;
			DockPanel.ResumeLayout(true, true);
		}

		private bool IsRefreshStateChangeSuspended
		{
			get	{	return m_countRefreshStateChange != 0;	}
		}

		private void ResumeRefreshStateChange(IDockListContainer oldContainer, DockState oldDockState)
		{
			ResumeRefreshStateChange();
			RefreshStateChange(oldContainer, oldDockState);
		}

		private void RefreshStateChange(IDockListContainer oldContainer, DockState oldDockState)
		{
			lock (this)
			{
				if (IsRefreshStateChangeSuspended)
					return;

				SuspendRefreshStateChange();
			}

			SetParent();

			if (ActiveContent != null)
				ActiveContent.DockHandler.SetDockState(ActiveContent.DockHandler.IsHidden, DockState, ActiveContent.DockHandler.Pane);
			foreach (IDockableWindow content in Contents)
			{
				if (content.DockHandler.Pane == this)
					content.DockHandler.SetDockState(content.DockHandler.IsHidden, DockState, content.DockHandler.Pane);
			}

			if (oldContainer != null)
			{
				if (oldContainer.DockState == oldDockState && !oldContainer.IsDisposed)
					((Control)oldContainer).PerformLayout();
			}
			if (DockHelper.IsDockStateAutoHide(oldDockState))
				DockPanel.AutoHideWindow.RefreshActiveContent();

			if (DockListContainer.DockState == DockState)
				((Control)DockListContainer).PerformLayout();
			if (DockHelper.IsDockStateAutoHide(DockState))
				DockPanel.AutoHideWindow.RefreshActiveContent();

			if (DockHelper.IsDockStateAutoHide(oldDockState) ||
				DockHelper.IsDockStateAutoHide(DockState))
			{
				DockPanel.RefreshAutoHideStrip();
				DockPanel.PerformLayout();
			}

			DockPanel.RefreshActiveWindow();
			if (oldDockState != DockState)
				OnDockStateChanged(EventArgs.Empty);

			ResumeRefreshStateChange();
		}

		/// <include file='CodeDoc\DockPane.xml' path='//CodeDoc/Class[@name="DockPane"]/Method[@name="AddToDockList"]/*'/>
		/// <include file='CodeDoc\DockPane.xml' path='//CodeDoc/Class[@name="DockPane"]/Method[@name="AddToDockList(IDockListContainer)"]/*'/>
		public DockPane AddToDockList(IDockListContainer container)
		{
			if (container == null)
				throw new InvalidOperationException(ResourceHelper.GetString("DockPane.AddToDockList.NullContainer"));

			DockAlignment alignment;
			if (container.DockState == DockState.DockLeft || container.DockState == DockState.DockRight)
				alignment = DockAlignment.Bottom;
			else
				alignment = DockAlignment.Right;

			return AddToDockList(container, container.DockList.GetDefaultPrevPane(this), alignment, 0.5);
		}

		/// <include file='CodeDoc\DockPane.xml' path='//CodeDoc/Class[@name="DockPane"]/Method[@name="AddToDockList(IDockListContainer, DockPane, DockAlignment, double)"]/*'/>
		public DockPane AddToDockList(IDockListContainer container, DockPane prevPane, DockAlignment alignment, double proportion)
		{
			if (container == null)
				throw new InvalidOperationException(ResourceHelper.GetString("DockPane.AddToDockList.NullContainer"));

			if (container.IsFloat == this.IsFloat)
			{
				InternalAddToDockList(container, prevPane, alignment, proportion);
				return this;
			}

			IDockableWindow firstContent = GetFirstContent(container.DockState);
			if (firstContent == null)
				return null;

			DockPane pane;
			DockPanel.DummyContent.DockPanel = DockPanel;
			if (container.IsFloat)
				pane = DockPanel.DockPaneFactory.CreateDockPane(DockPanel.DummyContent, (FloatWindow)container, true);
			else
				pane = DockPanel.DockPaneFactory.CreateDockPane(DockPanel.DummyContent, container.DockState, true);

			pane.AddToDockList(container, prevPane, alignment, proportion);
			SetVisibleContentsToPane(pane);
			DockPanel.DummyContent.DockPanel = null;

			return pane;
		}

		private void SetVisibleContentsToPane(DockPane pane)
		{
			SetVisibleContentsToPane(pane, ActiveContent);
		}

		private void SetVisibleContentsToPane(DockPane pane, IDockableWindow activeContent)
		{
			for (int i=0; i<DisplayingContents.Count; i++)
			{
				IDockableWindow content = DisplayingContents[i];
				if (content.DockHandler.IsDockStateValid(pane.DockState))
				{
					content.DockHandler.Pane = pane;
					i--;
				}
			}

			if (activeContent != null && pane.DisplayingContents.Contains(activeContent))
				pane.ActiveContent = activeContent;
		}

		private void InternalAddToDockList(IDockListContainer container, DockPane prevPane, DockAlignment alignment, double proportion)
		{
			if ((container.DockState == DockState.Float) != IsFloat)
				throw new InvalidOperationException(ResourceHelper.GetString("DockPane.AddToDockList.InvalidContainer"));

			int count = container.DockList.Count;
			if (container.DockList.Contains(this))
				count --;
			if (prevPane == null && count > 0)
				throw new InvalidOperationException(ResourceHelper.GetString("DockPane.AddToDockList.NullPrevPane"));

			if (prevPane != null && !container.DockList.Contains(prevPane))
				throw new InvalidOperationException(ResourceHelper.GetString("DockPane.AddToDockList.NoPrevPane"));

			if (prevPane == this)
				throw new InvalidOperationException(ResourceHelper.GetString("DockPane.AddToDockList.SelfPrevPane"));

			IDockListContainer oldContainer = DockListContainer;
			DockState oldDockState = DockState;
			container.DockList.Add(this);
			NestedDockingStatus.SetStatus(container.DockList, prevPane, alignment, proportion);

			if (DockHelper.IsDockWindowState(DockState))
				m_dockState = container.DockState;

			RefreshStateChange(oldContainer, oldDockState);
		}

		/// <include file='CodeDoc\DockPane.xml' path='//CodeDoc/Class[@name="DockPane"]/Method[@name="SetNestedDockingProportion(double)"]/*'/>
		public void SetNestedDockingProportion(double proportion)
		{
			NestedDockingStatus.SetStatus(NestedDockingStatus.DockList, NestedDockingStatus.PrevPane, NestedDockingStatus.Alignment, proportion);
			if (DockListContainer != null)
				((Control)DockListContainer).PerformLayout();
		}

		/// <include file='CodeDoc\DockPane.xml' path='//CodeDoc/Class[@name="DockPane"]/Method[@name="Float()"]/*'/>
		public DockPane Float()
		{
			IDockableWindow activeContent = ActiveContent;

			DockPane floatPane = GetFloatPaneFromContents();
			if (floatPane == null)
			{
				IDockableWindow firstContent = GetFirstContent(DockState.Float);
				if (firstContent == null)
					return null;
				floatPane = DockPanel.DockPaneFactory.CreateDockPane(firstContent,DockState.Float, true);
			}
			SetVisibleContentsToPane(floatPane, activeContent);
			floatPane.Activate();

			return floatPane;
		}

		private DockPane GetFloatPaneFromContents()
		{
			DockPane floatPane = null;
			for (int i=0; i<DisplayingContents.Count; i++)
			{
				IDockableWindow content = DisplayingContents[i];
				if (!content.DockHandler.IsDockStateValid(DockState.Float))
					continue;

				if (floatPane != null && content.DockHandler.FloatPane != floatPane)
					return null;
				else
					floatPane = content.DockHandler.FloatPane;
			}

			return floatPane;
		}

		private IDockableWindow GetFirstContent(DockState dockState)
		{
			for (int i=0; i<DisplayingContents.Count; i++)
			{
				IDockableWindow content = DisplayingContents[i];
				if (content.DockHandler.IsDockStateValid(dockState))
					return content;
			}
			return null;
		}

		/// <include file='CodeDoc\DockPane.xml' path='//CodeDoc/Class[@name="DockPane"]/Method[@name="RestoreToPanel()"]/*'/>
		public void RestoreToPanel()
		{
			IDockableWindow activeContent = DockPanel.ActiveContent;

			for (int i=DisplayingContents.Count-1; i>=0; i--)
			{
				IDockableWindow content = DisplayingContents[i];
				try	{	content.DockHandler.IsFloat = false;	}	catch	{	}
			}

			if (activeContent != null)
				activeContent.DockHandler.Activate();
		}

		private AutoHidePane m_autoHidePane;
		internal AutoHidePane AutoHidePane
		{
			get	{	return m_autoHidePane;	}
		}

		/// <exclude />
		protected override void WndProc(ref Message m)
		{
			if (m.Msg == (int)Win32.Msgs.WM_MOUSEACTIVATE)
				Activate();
			else if (m.Msg == (int)Win32.Msgs.WM_WINDOWPOSCHANGING)
			{
				int offset = (int)Marshal.OffsetOf(typeof(Win32.WINDOWPOS), "flags");
				int flags = Marshal.ReadInt32(m.LParam, offset);
				Marshal.WriteInt32(m.LParam, offset, flags | (int)Win32.FlagsSetWindowPos.SWP_NOCOPYBITS);
			}

			base.WndProc (ref m);
		}
	}
}