124 lines
5.2 KiB
C#
124 lines
5.2 KiB
C#
namespace System.Workflow.Activities
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{
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using System;
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using System.Diagnostics;
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using System.Text;
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using System.Reflection;
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using System.Collections;
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using System.CodeDom;
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using System.ComponentModel;
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using System.ComponentModel.Design;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Workflow.ComponentModel;
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using System.Workflow.ComponentModel.Design;
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using System.Collections.ObjectModel;
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using System.Runtime.Serialization;
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#region Class WhileDesigner
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[ActivityDesignerTheme(typeof(WhileDesignerTheme))]
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internal sealed class WhileDesigner : SequentialActivityDesigner
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{
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#region Properties and Methods
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protected override void Initialize(Activity activity)
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{
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base.Initialize(activity);
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HelpText = DR.GetString(DR.DropActivityHere);
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}
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protected override void OnPaint(ActivityDesignerPaintEventArgs e)
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{
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base.OnPaint(e);
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if (Expanded)
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{
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CompositeDesignerTheme compositeDesignerTheme = e.DesignerTheme as CompositeDesignerTheme;
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Debug.Assert(compositeDesignerTheme != null);
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if (compositeDesignerTheme == null)
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return;
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Rectangle bounds = Bounds;
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Rectangle textRectangle = TextRectangle;
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Rectangle imageRectangle = ImageRectangle;
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Point connectionPoint = Point.Empty;
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if (!imageRectangle.IsEmpty)
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connectionPoint = new Point(imageRectangle.Right + e.AmbientTheme.Margin.Width / 2, imageRectangle.Top + imageRectangle.Height / 2);
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else if (!textRectangle.IsEmpty)
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connectionPoint = new Point(textRectangle.Right + e.AmbientTheme.Margin.Width / 2, textRectangle.Top + textRectangle.Height / 2);
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else
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connectionPoint = new Point(bounds.Left + bounds.Width / 2 + e.AmbientTheme.Margin.Width / 2, bounds.Top + e.AmbientTheme.Margin.Height / 2);
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Point[] points = new Point[4];
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points[0].X = bounds.Left + bounds.Width / 2;
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points[0].Y = bounds.Bottom - compositeDesignerTheme.ConnectorSize.Height / 3;
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points[1].X = bounds.Right - compositeDesignerTheme.ConnectorSize.Width / 3;
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points[1].Y = bounds.Bottom - compositeDesignerTheme.ConnectorSize.Height / 3;
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points[2].X = bounds.Right - compositeDesignerTheme.ConnectorSize.Width / 3;
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points[2].Y = connectionPoint.Y;
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points[3].X = connectionPoint.X;
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points[3].Y = connectionPoint.Y;
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DrawConnectors(e.Graphics, compositeDesignerTheme.ForegroundPen, points, LineAnchor.None, LineAnchor.ArrowAnchor);
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DrawConnectors(e.Graphics, compositeDesignerTheme.ForegroundPen, new Point[] { points[0], new Point(bounds.Left + bounds.Width / 2, bounds.Bottom) }, LineAnchor.None, LineAnchor.None);
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}
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}
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protected override Rectangle[] GetConnectors()
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{
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Rectangle[] connectors = base.GetConnectors();
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CompositeDesignerTheme designerTheme = DesignerTheme as CompositeDesignerTheme;
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Debug.Assert(designerTheme != null);
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if (Expanded && connectors.GetLength(0) > 0)
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connectors[connectors.GetLength(0) - 1].Height = connectors[connectors.GetLength(0) - 1].Height - (((designerTheme != null) ? designerTheme.ConnectorSize.Height : 0) / 3);
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return connectors;
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}
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protected override Size OnLayoutSize(ActivityDesignerLayoutEventArgs e)
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{
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Size containerSize = base.OnLayoutSize(e);
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CompositeDesignerTheme compositeDesignerTheme = e.DesignerTheme as CompositeDesignerTheme;
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if (compositeDesignerTheme != null && Expanded)
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{
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containerSize.Width += 2 * compositeDesignerTheme.ConnectorSize.Width;
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containerSize.Height += compositeDesignerTheme.ConnectorSize.Height;
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}
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return containerSize;
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}
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public override bool CanInsertActivities(HitTestInfo insertLocation, ReadOnlyCollection<Activity> activitiesToInsert)
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{
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//we only allow one activity to be inserted
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if (this == ActiveView.AssociatedDesigner && ContainedDesigners.Count > 0)
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return false;
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return base.CanInsertActivities(insertLocation, activitiesToInsert);
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}
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#endregion
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}
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#endregion
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#region WhileDesignerTheme
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internal sealed class WhileDesignerTheme : CompositeDesignerTheme
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{
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public WhileDesignerTheme(WorkflowTheme theme)
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: base(theme)
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{
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this.ShowDropShadow = false;
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this.ConnectorStartCap = LineAnchor.None;
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this.ConnectorEndCap = LineAnchor.ArrowAnchor;
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this.ForeColor = Color.FromArgb(0xFF, 0x52, 0x8A, 0xF7);
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this.BorderColor = Color.FromArgb(0xFF, 0xE0, 0xE0, 0xE0);
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this.BorderStyle = DashStyle.Dash;
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this.BackColorStart = Color.FromArgb(0x00, 0x00, 0x00, 0x00);
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this.BackColorEnd = Color.FromArgb(0x00, 0x00, 0x00, 0x00);
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}
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}
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#endregion
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}
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