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// SysDrawing.cs
//Authors: ${Author}
//
// Copyright (c) 2008 [copyright holders]
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
//
using System;
using Gtk;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Drawing;
namespace Mono.CSharp.Gui
{
public class BitmapWidget : DrawingArea {
System.Drawing.Bitmap b;
public BitmapWidget (System.Drawing.Bitmap b)
{
this.b = b;
GraphicsUnit unit = GraphicsUnit.Pixel;
//
// Quick hack to make stuff not too large
//
RectangleF bounds = b.GetBounds (ref unit);
bounds.Height = System.Math.Min (bounds.Height, 600);
bounds.Width = System.Math.Min (bounds.Width, 400);
SetSizeRequest ((int) bounds.Width, (int) bounds.Height);
}
protected override bool OnExposeEvent (Gdk.EventExpose args)
{
Gdk.Rectangle area = args.Area;
using (System.Drawing.Graphics g = GraphicsHelper.FromDrawable (args.Window)){
System.Drawing.Rectangle bounds = new System.Drawing.Rectangle (area.X, area.Y, area.Width, area.Height);
g.DrawImage (b, bounds, bounds, System.Drawing.GraphicsUnit.Pixel);
}
return true;
}
}
public class GraphicsHelper {
[DllImport("libgdk-win32-2.0-0.dll")]
internal static extern IntPtr gdk_x11_drawable_get_xdisplay (IntPtr raw);
[DllImport("libgdk-win32-2.0-0.dll")]
internal static extern IntPtr gdk_x11_drawable_get_xid (IntPtr raw);
public static System.Drawing.Graphics FromDrawable (Gdk.Drawable drawable)
{
IntPtr x_drawable;
int x_off = 0, y_off = 0;
if (drawable is Gdk.Window){
((Gdk.Window) drawable).GetInternalPaintInfo(out drawable, out x_off, out y_off);
}
x_drawable = drawable.Handle;
IntPtr display = gdk_x11_drawable_get_xdisplay (x_drawable);
Type graphics = typeof (System.Drawing.Graphics);
MethodInfo mi = graphics.GetMethod ("FromXDrawable", BindingFlags.Static | BindingFlags.NonPublic);
if (mi == null)
throw new NotImplementedException ("In this implementation I can not get a graphics from a drawable");
object [] args = new object [2] { (IntPtr) gdk_x11_drawable_get_xid (drawable.Handle), (IntPtr) display };
object r = mi.Invoke (null, args);
System.Drawing.Graphics g = (System.Drawing.Graphics) r;
g.TranslateTransform (-x_off, -y_off);
return g;
}
}
}
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