Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / WinForms / System / WinForms / Design / Behavior / ToolStripPanelSelectionGlyph.cs / 1 / ToolStripPanelSelectionGlyph.cs
namespace System.Windows.Forms.Design.Behavior { using System; using System.Collections; using System.ComponentModel; using System.ComponentModel.Design; using System.Design; using System.Diagnostics; using System.Drawing; using System.Drawing.Drawing2D; using System.Windows.Forms.Design; using System.Windows.Forms; ////// /// internal sealed class ToolStripPanelSelectionGlyph : ControlBodyGlyph { private ToolStripPanel relatedPanel; private Rectangle glyphBounds; private IServiceProvider provider; private ToolStripPanelSelectionBehavior relatedBehavior; private Image image = null; private Control baseParent = null; private BehaviorService behaviorService; private bool isExpanded = false; private const int imageWidth = 50; private const int imageHeight = 6; ////// /// internal ToolStripPanelSelectionGlyph(Rectangle bounds, Cursor cursor, IComponent relatedComponent, IServiceProvider provider, ToolStripPanelSelectionBehavior behavior) : base(bounds, cursor, relatedComponent, behavior) { relatedBehavior = behavior; this.provider = provider; this.relatedPanel = relatedComponent as ToolStripPanel; this.behaviorService = (BehaviorService)provider.GetService(typeof(BehaviorService)); if (behaviorService == null) { Debug.Fail("Could not get the BehaviorService"); return; } IDesignerHost host = (IDesignerHost)provider.GetService(typeof(IDesignerHost)); if (host == null) { Debug.Fail("Could not get the DesignerHost"); return; } UpdateGlyph(); } public bool IsExpanded { get { return isExpanded; } set { if (value != isExpanded) { isExpanded = value; UpdateGlyph(); } } } public void UpdateGlyph() { if (behaviorService != null) { Rectangle translatedBounds = behaviorService.ControlRectInAdornerWindow(relatedPanel); //Reset the glyph. this.glyphBounds = Rectangle.Empty; // Refresh the parent ToolStripContainer parent = relatedPanel.Parent as ToolStripContainer; if (parent != null) { this.baseParent = parent.Parent; // get the control to which ToolStripContainer is added... } if (!isExpanded) { CollapseGlyph(translatedBounds); } else { ExpandGlyph(translatedBounds); } } } private void CollapseGlyph(Rectangle bounds) { DockStyle dock = relatedPanel.Dock; int x = 0; int y = 0; switch(dock) { case DockStyle.Top : this.image = new Bitmap(typeof(ToolStripPanelSelectionGlyph), "topopen.bmp"); x = (bounds.Width - imageWidth) /2; if (x > 0) { this.glyphBounds = new Rectangle(bounds.X + x, bounds.Y + bounds.Height, imageWidth, imageHeight); } break; case DockStyle.Bottom : this.image = new Bitmap(typeof(ToolStripPanelSelectionGlyph), "bottomopen.bmp"); x = (bounds.Width - imageWidth) /2; if (x > 0) { this.glyphBounds = new Rectangle(bounds.X + x, bounds.Y - imageHeight, imageWidth, imageHeight); } break; case DockStyle.Left : this.image = new Bitmap(typeof(ToolStripPanelSelectionGlyph), "leftopen.bmp"); y = (bounds.Height - imageWidth) /2; if (y > 0) { this.glyphBounds = new Rectangle(bounds.X + bounds.Width, bounds.Y + y, imageHeight, imageWidth); } break; case DockStyle.Right : this.image = new Bitmap(typeof(ToolStripPanelSelectionGlyph), "rightopen.bmp"); y = (bounds.Height - imageWidth) /2; if (y > 0) { this.glyphBounds = new Rectangle(bounds.X - imageHeight , bounds.Y + y, imageHeight, imageWidth); } break; default: throw new Exception(SR.GetString(SR.ToolStripPanelGlyphUnsupportedDock)); } } private void ExpandGlyph(Rectangle bounds) { DockStyle dock = relatedPanel.Dock; int x = 0; int y = 0; switch(dock) { case DockStyle.Top : this.image = new Bitmap(typeof(ToolStripPanelSelectionGlyph), "topclose.bmp"); x = (bounds.Width - imageWidth) /2; if (x > 0) { this.glyphBounds = new Rectangle(bounds.X + x, bounds.Y + bounds.Height, imageWidth, imageHeight); } break; case DockStyle.Bottom : this.image = new Bitmap(typeof(ToolStripPanelSelectionGlyph), "bottomclose.bmp"); x = (bounds.Width - imageWidth) /2; if (x > 0) { this.glyphBounds = new Rectangle(bounds.X + x, bounds.Y -imageHeight, imageWidth, imageHeight); } break; case DockStyle.Left : this.image = new Bitmap(typeof(ToolStripPanelSelectionGlyph), "leftclose.bmp"); y = (bounds.Height - imageWidth) /2; if (y > 0) { this.glyphBounds = new Rectangle(bounds.X + bounds.Width, bounds.Y + y, imageHeight, imageWidth); } break; case DockStyle.Right : this.image = new Bitmap(typeof(ToolStripPanelSelectionGlyph), "rightclose.bmp"); y = (bounds.Height - imageWidth) /2; if (y > 0) { this.glyphBounds = new Rectangle(bounds.X - imageHeight, bounds.Y + y, imageHeight, imageWidth); } break; default: throw new Exception(SR.GetString(SR.ToolStripPanelGlyphUnsupportedDock)); } } ////// /// The bounds of this Glyph. /// public override Rectangle Bounds { get { return glyphBounds; } } ////// /// Simple hit test rule: if the point is contained within the bounds /// - then it is a positive hit test. /// public override Cursor GetHitTest(Point p) { if (behaviorService != null && baseParent != null) { Rectangle baseParentBounds = behaviorService.ControlRectInAdornerWindow(baseParent); if (glyphBounds != Rectangle.Empty && baseParentBounds.Contains(glyphBounds) && glyphBounds.Contains(p)) { return Cursors.Hand; } } return null; } ////// /// Very simple paint logic. /// public override void Paint(PaintEventArgs pe) { if (behaviorService != null && baseParent != null) { Rectangle baseParentBounds = behaviorService.ControlRectInAdornerWindow(baseParent); if (relatedPanel.Visible && image != null && glyphBounds != Rectangle.Empty && baseParentBounds.Contains(glyphBounds)) { pe.Graphics.DrawImage(image, glyphBounds.Left, glyphBounds.Top); } } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. 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