dockpanestripvs2003.cs

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

		/// <include file='CodeDoc/DockPaneStripVS2003.xml' path='//CodeDoc/Class[@name="DockPaneStripVS2003"]/Property[@name="DocumentIconHeight"]/*'/>
		protected virtual int DocumentIconHeight
		{
			get	{	return _DocumentIconHeight;	}
		}

		/// <include file='CodeDoc/DockPaneStripVS2003.xml' path='//CodeDoc/Class[@name="DockPaneStripVS2003"]/Property[@name="OutlineInnerPen"]/*'/>
		protected virtual Pen OutlineInnerPen
		{
			get	{	return SystemPens.ControlText;	}
		}

		/// <include file='CodeDoc/DockPaneStripVS2003.xml' path='//CodeDoc/Class[@name="DockPaneStripVS2003"]/Property[@name="OutlineOuterPen"]/*'/>
		protected virtual Pen OutlineOuterPen
		{
			get	{	return SystemPens.ActiveCaptionText;	}
		}

		/// <include file='CodeDoc/DockPaneStripVS2003.xml' path='//CodeDoc/Class[@name="DockPaneStripVS2003"]/Property[@name="ActiveBackBrush"]/*'/>
		protected virtual Brush ActiveBackBrush
		{
			get	{	return SystemBrushes.Control;	}
		}

		/// <include file='CodeDoc/DockPaneStripVS2003.xml' path='//CodeDoc/Class[@name="DockPaneStripVS2003"]/Property[@name="ActiveTextBrush"]/*'/>
		protected virtual Brush ActiveTextBrush
		{
			get	{	return SystemBrushes.ControlText;	}
		}

		/// <include file='CodeDoc/DockPaneStripVS2003.xml' path='//CodeDoc/Class[@name="DockPaneStripVS2003"]/Property[@name="TabSeperatorPen"]/*'/>
		protected virtual Pen TabSeperatorPen
		{
			get	{	return SystemPens.GrayText;	}
		}

		/// <include file='CodeDoc/DockPaneStripVS2003.xml' path='//CodeDoc/Class[@name="DockPaneStripVS2003"]/Property[@name="InactiveTextBrush"]/*'/>
		protected virtual Brush InactiveTextBrush
		{
			get	{	return SystemBrushes.FromSystemColor(SystemColors.ControlDarkDark);	}
		}
		#endregion

		/// <include file='CodeDoc/DockPaneStripVS2003.xml' path='//CodeDoc/Class[@name="DockPaneStripVS2003"]/Construct[@name="(DockPane)"]/*'/>
		protected internal DockPaneStripVS2003(DockPane pane) : base(pane)
		{
			SetStyle(ControlStyles.ResizeRedraw, true);
			SetStyle(ControlStyles.UserPaint, true);
			SetStyle(ControlStyles.AllPaintingInWmPaint, true);

			SuspendLayout();

			Font = SystemInformation.MenuFont;
			BackColor = Color.WhiteSmoke;
			
			m_components = new Container();
			m_toolTip = new ToolTip(Components);

			m_buttonClose = new InertButton(ImageCloseEnabled, ImageCloseDisabled);
			m_buttonScrollLeft = new InertButton(ImageScrollLeftEnabled, ImageScrollLeftDisabled);
			m_buttonScrollRight = new InertButton(ImageScrollRightEnabled, ImageScrollRightDisabled);

			m_buttonClose.ToolTipText = ToolTipClose;
			m_buttonClose.Anchor = AnchorStyles.Top | AnchorStyles.Right;
			m_buttonClose.Click += new EventHandler(Close_Click);

			m_buttonScrollLeft.Enabled = false;
			m_buttonScrollLeft.RepeatClick = true;
			m_buttonScrollLeft.ToolTipText = ToolTipScrollLeft;
			m_buttonScrollLeft.Anchor = AnchorStyles.Top | AnchorStyles.Right;
			m_buttonScrollLeft.Click += new EventHandler(ScrollLeft_Click);

			m_buttonScrollRight.Enabled = false;
			m_buttonScrollRight.RepeatClick = true;
			m_buttonScrollRight.ToolTipText = ToolTipScrollRight;
			m_buttonScrollRight.Anchor = AnchorStyles.Top | AnchorStyles.Right;
			m_buttonScrollRight.Click += new EventHandler(ScrollRight_Click);

			Controls.AddRange(new Control[] {	m_buttonClose,
												m_buttonScrollLeft,
												m_buttonScrollRight	});

			ResumeLayout();
		}

		/// <exclude/>
		protected override void Dispose(bool disposing)
		{
			if (disposing)
			{
				Components.Dispose();
			}
			base.Dispose (disposing);
		}

		/// <exclude />
		protected internal override int MeasureHeight()
		{
			if (Appearance == DockPane.AppearanceStyle.ToolWindow)
				return MeasureHeight_ToolWindow();
			else
				return MeasureHeight_Document();
		}

		private int MeasureHeight_ToolWindow()
		{
			if (DockPane.IsAutoHide || Tabs.Count <= 1)
				return 0;

			int height = Math.Max(Font.Height, ToolWindowImageHeight)
				+ ToolWindowImageGapTop + ToolWindowImageGapBottom;

			return height;
		}

		private int MeasureHeight_Document()
		{
			int height = Math.Max(Font.Height + DocumentTabGapTop + DocumentTextExtraHeight,
				ImageCloseEnabled.Height + DocumentButtonGapTop + DocumentButtonGapBottom);

			return height;
		}

		/// <exclude />
		protected override void OnPaint(PaintEventArgs e)
		{
			base.OnPaint (e);
			CalculateTabs();
			DrawTabStrip(e.Graphics);
		}

		/// <exclude />
		protected override void OnRefreshChanges()
		{
			CalculateTabs();
			SetInertButtons();
			Invalidate();
		}

		/// <exclude />
		protected internal override GraphicsPath GetOutlinePath(int index)
		{
			Point[] pts = new Point[8];

			if (Appearance == DockPane.AppearanceStyle.Document)
			{
				Rectangle rectTab = GetTabRectangle(index);
				rectTab.Intersect(TabsRectangle);
				int y = DockPane.PointToClient(PointToScreen(new Point(0, rectTab.Bottom))).Y;
				Rectangle rectPaneClient = DockPane.ClientRectangle;
				pts[0] = DockPane.PointToScreen(new Point(rectPaneClient.Left, y));
				pts[1] = PointToScreen(new Point(rectTab.Left, rectTab.Bottom));
				pts[2] = PointToScreen(new Point(rectTab.Left, rectTab.Top));
				pts[3] = PointToScreen(new Point(rectTab.Right, rectTab.Top));
				pts[4] = PointToScreen(new Point(rectTab.Right, rectTab.Bottom));
				pts[5] = DockPane.PointToScreen(new Point(rectPaneClient.Right, y));
				pts[6] = DockPane.PointToScreen(new Point(rectPaneClient.Right, rectPaneClient.Bottom));
				pts[7] = DockPane.PointToScreen(new Point(rectPaneClient.Left, rectPaneClient.Bottom));
			}
			else
			{
				Rectangle rectTab = GetTabRectangle(index);
				rectTab.Intersect(TabsRectangle);
				int y = DockPane.PointToClient(PointToScreen(new Point(0, rectTab.Top))).Y;
				Rectangle rectPaneClient = DockPane.ClientRectangle;
				pts[0] = DockPane.PointToScreen(new Point(rectPaneClient.Left, rectPaneClient.Top));
				pts[1] = DockPane.PointToScreen(new Point(rectPaneClient.Right, rectPaneClient.Top));
				pts[2] = DockPane.PointToScreen(new Point(rectPaneClient.Right, y));
				pts[3] = PointToScreen(new Point(rectTab.Right, rectTab.Top));
				pts[4] = PointToScreen(new Point(rectTab.Right, rectTab.Bottom));
				pts[5] = PointToScreen(new Point(rectTab.Left, rectTab.Bottom));
				pts[6] = PointToScreen(new Point(rectTab.Left, rectTab.Top));
				pts[7] = DockPane.PointToScreen(new Point(rectPaneClient.Left, y));
			}

			GraphicsPath path = new GraphicsPath();
			path.AddLines(pts);
			return path;
		}

		private void CalculateTabs()
		{
			if (Appearance == DockPane.AppearanceStyle.ToolWindow)
				CalculateTabs_ToolWindow();
			else
				CalculateTabs_Document();
		}

		private void CalculateTabs_ToolWindow()
		{
			if (Tabs.Count <= 1 || DockPane.IsAutoHide)
				return;

			Rectangle rectTabStrip = ClientRectangle;

			// Calculate tab widths
			int countTabs = Tabs.Count;
			foreach (DockPaneTabVS2003 tab in Tabs)
			{
				tab.MaxWidth = GetTabOriginalWidth(Tabs.IndexOf(tab));
				tab.Flag = false;
			}

			// Set tab whose max width less than average width
			bool anyWidthWithinAverage = true;
			int totalWidth = rectTabStrip.Width - ToolWindowStripGapLeft - ToolWindowStripGapRight;
			int totalAllocatedWidth = 0;
			int averageWidth = totalWidth / countTabs;
			int remainedTabs = countTabs;
			for (anyWidthWithinAverage=true; anyWidthWithinAverage && remainedTabs>0;)
			{
				anyWidthWithinAverage = false;
				foreach (DockPaneTabVS2003 tab in Tabs)
				{
					if (tab.Flag)
						continue;

					if (tab.MaxWidth <= averageWidth)
					{
						tab.Flag = true;
						tab.TabWidth = tab.MaxWidth;
						totalAllocatedWidth += tab.TabWidth;
						anyWidthWithinAverage = true;
						remainedTabs--;
					}
				}
				if (remainedTabs != 0)
					averageWidth = (totalWidth - totalAllocatedWidth) / remainedTabs;
			}

			// If any tab width not set yet, set it to the average width
			if (remainedTabs > 0)
			{
				int roundUpWidth = (totalWidth - totalAllocatedWidth) - (averageWidth * remainedTabs);
				foreach (DockPaneTabVS2003 tab in Tabs)
				{
					if (tab.Flag)
						continue;

					tab.Flag = true;
					if (roundUpWidth > 0)
					{
						tab.TabWidth = averageWidth + 1;
						roundUpWidth --;
					}
					else
						tab.TabWidth = averageWidth;
				}
			}

			// Set the X position of the tabs
			int x = rectTabStrip.X + ToolWindowStripGapLeft;
			foreach (DockPaneTabVS2003 tab in Tabs)
			{
				tab.TabX = x;
				x += tab.TabWidth;
			}
		}

		private void CalculateTabs_Document()
		{
			Rectangle rectTabStrip = TabsRectangle;

			int totalWidth = 0;
			foreach (DockPaneTabVS2003 tab in Tabs)
			{
				tab.TabWidth = Math.Min(GetTabOriginalWidth(Tabs.IndexOf(tab)), DocumentTabMaxWidth);
				totalWidth += tab.TabWidth;
			}

			if (totalWidth + OffsetX < rectTabStrip.Width && OffsetX < 0)
				OffsetX = Math.Min(0, rectTabStrip.Width - totalWidth);

			int x = rectTabStrip.X + OffsetX;
			foreach (DockPaneTabVS2003 tab in Tabs)
			{
				tab.TabX = x;
				x += tab.TabWidth;
			}
		}

		/// <exclude />
		protected internal override void EnsureTabVisible(IDockableWindow content)
		{
			if (Appearance != DockPane.AppearanceStyle.Document || !Tabs.Contains(content))
				return;

			Rectangle rectTabStrip = TabsRectangle;
			Rectangle rectTab = GetTabRectangle(Tabs.IndexOf(content));

			if (rectTab.Right > rectTabStrip.Right)
			{
				OffsetX -= rectTab.Right - rectTabStrip.Right;
				rectTab.X -= rectTab.Right - rectTabStrip.Right;
			}

			if (rectTab.Left < rectTabStrip.Left)
				OffsetX += rectTabStrip.Left - rectTab.Left;

			OnRefreshChanges();
		}

		private int GetTabOriginalWidth(int index)
		{
			if (Appearance == DockPane.AppearanceStyle.ToolWindow)
				return GetTabOriginalWidth_ToolWindow(index);
			else
				return GetTabOriginalWidth_Document(index);
		}

		private int GetTabOriginalWidth_ToolWindow(int index)
		{
			IDockableWindow content = Tabs[index].Content;
			using (Graphics g = CreateGraphics())
			{
				SizeF sizeString = g.MeasureString(content.DockHandler.TabText, Font);
				return ToolWindowImageWidth + (int)sizeString.Width + 1 + ToolWindowImageGapLeft
					+ ToolWindowImageGapRight + ToolWindowTextGapRight;
			}
		}

		private int GetTabOriginalWidth_Document(int index)
		{
			IDockableWindow content = Tabs[index].Content;

			using (Graphics g = CreateGraphics())
			{
				SizeF sizeText;
				if (content == DockPane.ActiveContent && DockPane.IsActiveDocumentPane)
				{
					using (Font boldFont = new Font(this.Font, FontStyle.Bold))
					{
						sizeText = g.MeasureString(content.DockHandler.TabText, boldFont, DocumentTabMaxWidth, DocumentTextStringFormat);
					}
				}
				else
					sizeText = g.MeasureString(content.DockHandler.TabText, Font, DocumentTabMaxWidth, DocumentTextStringFormat);

				if (DockPane.DockPanel.ShowDocumentIcon)
					return (int)sizeText.Width + 1 + DocumentTextExtraWidth + DocumentIconWidth + DocumentIconGapLeft;
				else
					return (int)sizeText.Width + 1 + DocumentTextExtraWidth;
			}
		}

		private void DrawTabStrip(Graphics g)
		{
			OnBeginDrawTabStrip();

			if (Appearance == DockPane.AppearanceStyle.Document)
				DrawTabStrip_Document(g);
			else
				DrawTabStrip_ToolWindow(g);

			OnEndDrawTabStrip();
		}

		private void DrawTabStrip_Document(Graphics g)
		{
			int count = Tabs.Count;
			if (count == 0)
				return;