115 lines
3.8 KiB
C#
115 lines
3.8 KiB
C#
//
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//
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// GDK-X11 interface
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//
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//
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// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Reflection;
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using System.Runtime.InteropServices;
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using Gtk;
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using Cairo;
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namespace Gdk
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{
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public class Context
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{
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// Note: we don't need or want a .dll.config since we p/invoke
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// the proper lib based on the os check below
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// win32 only imports
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[DllImport("libgdk-win32-2.0-0.dll")]
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internal static extern IntPtr gdk_win32_hdc_get(IntPtr drawable, IntPtr gc, int usage);
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[DllImport("libgdk-win32-2.0-0.dll")]
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internal static extern void gdk_win32_hdc_release(IntPtr drawable,IntPtr gc,int usage);
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// x11 only imports
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[DllImport("libgdk-x11-2.0.so")]
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internal static extern IntPtr gdk_x11_drawable_get_xdisplay (IntPtr raw);
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[DllImport("libgdk-x11-2.0.so")]
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internal static extern IntPtr gdk_x11_drawable_get_xid (IntPtr raw);
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[DllImport("libgdk-x11-2.0.so")]
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internal static extern IntPtr gdk_drawable_get_visual (IntPtr raw);
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[DllImport("libgdk-x11-2.0.so")]
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internal static extern IntPtr gdk_x11_visual_get_xvisual (IntPtr raw);
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[DllImport("libgdk-x11-2.0.so")]
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internal static extern IntPtr gdk_cairo_create (IntPtr raw);
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public static Cairo.Context CreateDrawable (Gdk.Drawable drawable)
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{
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IntPtr x_drawable = IntPtr.Zero;
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int x_off = 0, y_off = 0;
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int x, y, w, h, d;
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((Gdk.Window)drawable).GetGeometry(out x, out y, out w, out h, out d);
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bool is_gdk_window = drawable is Gdk.Window;
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if (is_gdk_window)
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((Gdk.Window) drawable).GetInternalPaintInfo(out drawable,
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out x_off, out y_off);
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Cairo.Surface surface;
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PlatformID os = Environment.OSVersion.Platform;
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if (os == PlatformID.Win32Windows || os == PlatformID.Win32NT ||
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os == PlatformID.Win32S || os == PlatformID.WinCE) {
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Gdk.GC gcc = new Gdk.GC (drawable);
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IntPtr windc = gdk_win32_hdc_get (drawable.Handle, gcc.Handle, 0);
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surface = new Win32Surface (windc);
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gdk_win32_hdc_release (drawable.Handle, gcc.Handle, 0);
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} else {
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x_drawable = drawable.Handle;
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IntPtr visual = gdk_drawable_get_visual(x_drawable);
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IntPtr Xdisplay = gdk_x11_drawable_get_xdisplay(x_drawable);
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IntPtr Xvisual = gdk_x11_visual_get_xvisual(visual);
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IntPtr Xdrawable = gdk_x11_drawable_get_xid (x_drawable);
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surface = new Cairo.XlibSurface (Xdisplay,
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Xdrawable,
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Xvisual,
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w, h);
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}
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Cairo.Context g = new Cairo.Context (surface);
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// this can be safely removed now, just keep it for a bit more
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//Cairo.Context g = new Cairo.Context (
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// gdk_cairo_create (x_drawable ));
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if (is_gdk_window)
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g.Translate (-(double)x_off,-(double)y_off);
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return g;
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}
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}
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}
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