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Update the CairoSample.

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* sample/CairoSample.cs: bring the code closer to current practice
and update the OnDrawn override to use AllocatedWidth and Height.
Sample now runs cleanly, though with a couple of cairo-sharp bitches
when finalizers run on contexts.
This commit is contained in:
Mike Kestner 2011-02-12 16:31:50 -06:00
parent 001956432c
commit d757f1b63a
1 changed files with 7 additions and 17 deletions
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24
sample/CairoSample.cs
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@ -2,22 +2,17 @@ using System;
using Gtk;
using Cairo;
class Knockout : DrawingArea
class CairoSample : DrawingArea
{
static void Main ()
{
Application.Init ();
new Knockout ();
Application.Run ();
}
Knockout ()
{
Window win = new Window ("Cairo with Gtk#");
Window win = new Window ("Cairo with Gtk# 3");
win.SetDefaultSize (400, 400);
win.DeleteEvent += new DeleteEventHandler (OnQuit);
win.Add (this);
win.DeleteEvent += delegate { Application.Quit (); };
win.Add (new CairoSample ());
win.ShowAll ();
Application.Run ();
}
void OvalPath (Context cr, double xc, double yc, double xr, double yr)
@ -80,7 +75,7 @@ class Knockout : DrawingArea
cr.Fill ();
cr.Color = new Color (0.0, 0.0, 1.0, alpha);
OvalPath (cr, xc + radius / 3.0 * Math.Cos (Math.PI * (0.5 + 4 / 0.3)), yc - radius / 3.0 * Math.Sin (Math.PI * (0.5 + 4 / 0.3)), subradius, subradius);
OvalPath (cr, xc + radius / 3.0 * Math.Cos (Math.PI * (0.5 + 4 / 0.3)), yc - radius / 3.0 * Math.Sin (Math.PI * (0.5 + 4 / 0.3)), subradius, subradius);
cr.Fill ();
}
@ -135,13 +130,8 @@ class Knockout : DrawingArea
protected override bool OnDrawn (Cairo.Context ctx)
{
Draw (ctx, Window.Width, Window.Height);
Draw (ctx, AllocatedWidth, AllocatedHeight);
return true;
}
void OnQuit (object sender, DeleteEventArgs e)
{
Application.Quit ();
}
}