Changeset 10518 for branches/HeuristicLab.Visualization

Timestamp:

02/26/14 10:46:57 (11 years ago)

Author:

bburlacu

Message:

#1265: Removed labeled primitives and added text property to the RectangularPrimitiveBase. If the string is not null or empty it is drawn centered inside the rectangular primitive.

Location:

branches/HeuristicLab.Visualization/HeuristicLab.Visualization/3.3/Primitives

Files:

• LabeledEllipse.cs (deleted)
• LabeledRectangle.cs (deleted)
• RectangularPrimitiveBase.cs (modified) (2 diffs)

branches/HeuristicLab.Visualization/HeuristicLab.Visualization/3.3/Primitives/RectangularPrimitiveBase.cs

@@ -40 +40 @@
       get { return new SizeD(UpperRight.X - LowerLeft.X, UpperRight.Y - LowerLeft.Y); }
     }
+
+    public string Text { get; set; }
+    public Font Font { get; set; }
 
     protected RectangularPrimitiveBase(IChart chart, PointD lowerLeft, PointD upperRight)
@@ -133 +136 @@
       }
     }
+
+    protected virtual void DrawText(Graphics graphics) {  // draw the text in the center of the bounding rectangle4
+      var p = Chart.TransformWorldToPixel(new PointD(LowerLeft.X, LowerLeft.Y));
+      var s = Chart.TransformWorldToPixel(Size);
+      var stringSize = graphics.MeasureString(Text, Font);
+      var fontSize = Font.Size * s.Width / stringSize.Width;
+      if (fontSize > 12) fontSize = 12; // limit maximum font size so that nodes look nicer
+      Font = new Font(Font.FontFamily, fontSize, GraphicsUnit.Pixel);
+      stringSize = graphics.MeasureString(Text, Font);
+      graphics.DrawString(Text, Font, new SolidBrush(Pen.Color), p.X + (s.Width - stringSize.Width) / 2f, p.Y - (s.Height + stringSize.Height) / 2f);
+    }
+
+    public override void Draw(Graphics graphics) {
+      if (!string.IsNullOrEmpty(Text))
+        DrawText(graphics);
+      base.Draw(graphics);
+    }
   }
 }