[Mono-bugs] [Bug 81374][Wis] New - Drawing primitives get clipped when using large coordinates

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Changed by adam at chodorowski.com.

http://bugzilla.ximian.com/show_bug.cgi?id=81374

--- shadow/81374	2007-04-13 20:05:31.000000000 -0400
+++ shadow/81374.tmp.11471	2007-04-13 20:05:31.000000000 -0400
@@ -0,0 +1,74 @@
+Bug#: 81374
+Product: Mono: Class Libraries
+Version: 1.2
+OS: other
+OS Details: Gentoo
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Wishlist
+Component: Windows.Forms
+AssignedTo: toshok at ximian.com                            
+ReportedBy: adam at chodorowski.com               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: Drawing primitives get clipped when using large coordinates
+
+Description of problem:
+Drawing primitives (ellipses, rectangles, etc) are clipped when using 
+coordinates larger than 2^14 (16384) even though a global translation 
+transform has been set that should cause them to be drawn fully visible.
+
+Code (will also attach a copy):
+using System;
+using System.Windows.Forms;
+using System.Drawing;
+
+class TestForm : Form
+{
+    protected override void OnPaint(PaintEventArgs ea)
+    {
+        base.OnPaint(ea);
+        Graphics g    = ea.Graphics;
+
+        Point center  = new Point(1 << 14, 1 << 14);
+        int   length  = 100;
+        Point topleft = new Point(center.X - length / 2, center.Y - length 
+/ 2);
+
+        g.TranslateTransform(Width / 2 - center.X, Height / 2 - center.Y);
+        g.DrawRectangle(new Pen(Color.Green), topleft.X, topleft.Y, 
+length, length);
+        g.DrawEllipse(new Pen(Color.Blue), topleft.X, topleft.Y, length, 
+length);
+    }
+
+    protected override void OnResize(EventArgs ea)
+    {
+        base.OnResize(ea);
+        Invalidate();
+    }
+
+    public static void Main(string[] args)
+    {
+        Application.Run(new TestForm());
+    }
+}
+
+
+Actual Results:
+With Mono, the shapes are clipped where the lines extend beyond 2^14 in X 
+or Y. With Microsoft.NET, the shapes are drawn correctly. (Will attach 
+screenshots to this bug report.)
+
+Expected Results:
+Mono Windows.Forms should draw the sahpes correctly.
+
+How often does this happen? 
+Always.
+
+Additional Information:
+Mono 1.2.3.1
+libgdiplus 1.2.3