80 lines
3.8 KiB
C#
80 lines
3.8 KiB
C#
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namespace System.Workflow.ComponentModel.Design
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{
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using System;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Windows.Forms;
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#region Glyphs
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#region Class SelectionGlyph
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[Obsolete("The System.Workflow.* types are deprecated. Instead, please use the new types from System.Activities.*")]
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public abstract class SelectionGlyph : DesignerGlyph
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{
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public override Rectangle GetBounds(ActivityDesigner designer, bool activated)
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{
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if (designer == null)
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throw new ArgumentNullException("designer");
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Rectangle rectangle = designer.Bounds;
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rectangle.Inflate(WorkflowTheme.CurrentTheme.AmbientTheme.SelectionSize.Width / 2, WorkflowTheme.CurrentTheme.AmbientTheme.SelectionSize.Height / 2);
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return rectangle;
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}
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protected override void OnPaint(Graphics graphics, bool activated, AmbientTheme ambientTheme, ActivityDesigner designer)
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{
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ActivityDesignerPaint.DrawSelection(graphics, GetBounds(designer, activated), IsPrimarySelection, WorkflowTheme.CurrentTheme.AmbientTheme.SelectionSize, GetGrabHandles(designer));
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}
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public override int Priority
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{
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get
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{
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return DesignerGlyph.SelectionPriority;
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}
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}
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public abstract bool IsPrimarySelection { get; }
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public virtual Rectangle[] GetGrabHandles(ActivityDesigner designer)
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{
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Size selectionSize = WorkflowTheme.CurrentTheme.AmbientTheme.SelectionSize;
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Size grabHandleSize = new Size(selectionSize.Width, selectionSize.Height);
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Rectangle selectionRect = GetBounds(designer, false);
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selectionRect.Inflate(selectionSize.Width, selectionSize.Height);
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//we need grab handles only in case this activity is an immediate child of a free-form activity
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//otherwise, no grab handles
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ActivityDesigner parentDesigner = designer.ParentDesigner;
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Rectangle[] grabHandles = null;
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if (parentDesigner != null && parentDesigner is FreeformActivityDesigner)
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{
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grabHandles = new Rectangle[8];
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grabHandles[0] = new Rectangle(selectionRect.Location, grabHandleSize);
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grabHandles[1] = new Rectangle(new Point(selectionRect.Left + (selectionRect.Width - grabHandleSize.Width) / 2, selectionRect.Top), grabHandleSize);
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grabHandles[2] = new Rectangle(selectionRect.Right - grabHandleSize.Width, selectionRect.Top, grabHandleSize.Width, grabHandleSize.Height);
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grabHandles[3] = new Rectangle(new Point(selectionRect.Right - grabHandleSize.Width, selectionRect.Top + (selectionRect.Height - grabHandleSize.Height) / 2), grabHandleSize);
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grabHandles[4] = new Rectangle(selectionRect.Right - grabHandleSize.Width, selectionRect.Bottom - grabHandleSize.Height, grabHandleSize.Width, grabHandleSize.Height);
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grabHandles[5] = new Rectangle(new Point(selectionRect.Left + (selectionRect.Width - grabHandleSize.Width) / 2, selectionRect.Bottom - grabHandleSize.Height), grabHandleSize);
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grabHandles[6] = new Rectangle(selectionRect.Left, selectionRect.Bottom - grabHandleSize.Height, grabHandleSize.Width, grabHandleSize.Height);
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grabHandles[7] = new Rectangle(new Point(selectionRect.Left, selectionRect.Top + (selectionRect.Height - grabHandleSize.Height) / 2), grabHandleSize);
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return grabHandles;
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}
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else
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{
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grabHandles = new Rectangle[1];
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grabHandles[0] = new Rectangle(selectionRect.Location, grabHandleSize);
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}
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return grabHandles;
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}
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}
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#endregion
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#endregion
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}
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