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//
//
// GDK-X11 interface
//
//
// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
//
// 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 System.Reflection;
using System.Runtime.InteropServices;
using Gtk;
using Cairo;
namespace Gdk
{
public class Context
{
// Note: we don't need or want a .dll.config since we p/invoke
// the proper lib based on the os check below
// win32 only imports
[DllImport("libgdk-win32-2.0-0.dll")]
internal static extern IntPtr gdk_win32_hdc_get(IntPtr drawable, IntPtr gc, int usage);
[DllImport("libgdk-win32-2.0-0.dll")]
internal static extern void gdk_win32_hdc_release(IntPtr drawable,IntPtr gc,int usage);
// x11 only imports
[DllImport("libgdk-x11-2.0.so")]
internal static extern IntPtr gdk_x11_drawable_get_xdisplay (IntPtr raw);
[DllImport("libgdk-x11-2.0.so")]
internal static extern IntPtr gdk_x11_drawable_get_xid (IntPtr raw);
[DllImport("libgdk-x11-2.0.so")]
internal static extern IntPtr gdk_drawable_get_visual (IntPtr raw);
[DllImport("libgdk-x11-2.0.so")]
internal static extern IntPtr gdk_x11_visual_get_xvisual (IntPtr raw);
[DllImport("libgdk-x11-2.0.so")]
internal static extern IntPtr gdk_cairo_create (IntPtr raw);
public static Cairo.Context CreateDrawable (Gdk.Drawable drawable)
{
IntPtr x_drawable = IntPtr.Zero;
int x_off = 0, y_off = 0;
int x, y, w, h, d;
((Gdk.Window)drawable).GetGeometry(out x, out y, out w, out h, out d);
bool is_gdk_window = drawable is Gdk.Window;
if (is_gdk_window)
((Gdk.Window) drawable).GetInternalPaintInfo(out drawable,
out x_off, out y_off);
Cairo.Surface surface;
PlatformID os = Environment.OSVersion.Platform;
if (os == PlatformID.Win32Windows || os == PlatformID.Win32NT ||
os == PlatformID.Win32S || os == PlatformID.WinCE) {
Gdk.GC gcc = new Gdk.GC (drawable);
IntPtr windc = gdk_win32_hdc_get (drawable.Handle, gcc.Handle, 0);
surface = new Win32Surface (windc);
gdk_win32_hdc_release (drawable.Handle, gcc.Handle, 0);
} else {
x_drawable = drawable.Handle;
IntPtr visual = gdk_drawable_get_visual(x_drawable);
IntPtr Xdisplay = gdk_x11_drawable_get_xdisplay(x_drawable);
IntPtr Xvisual = gdk_x11_visual_get_xvisual(visual);
IntPtr Xdrawable = gdk_x11_drawable_get_xid (x_drawable);
surface = new Cairo.XlibSurface (Xdisplay,
Xdrawable,
Xvisual,
w, h);
}
Cairo.Context g = new Cairo.Context (surface);
// this can be safely removed now, just keep it for a bit more
//Cairo.Context g = new Cairo.Context (
// gdk_cairo_create (x_drawable ));
if (is_gdk_window)
g.Translate (-(double)x_off,-(double)y_off);
return g;
}
}
}
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