public static Surface CreateSurface(Gdk.Drawable d)
{
d.GetSize(out var width, out var height);
var surface = new XlibSurface(GdkUtils.GetXDisplay(d.Display),
GdkUtils.GetXid(d),
GdkUtils.GetXVisual(d.Visual),
width, height);
return(surface);
}
public static Surface CreateSurface(Gdk.Drawable d)
{
int width, height;
d.GetSize(out width, out height);
XlibSurface surface = new XlibSurface(GdkUtils.GetXDisplay(d.Display),
(IntPtr)GdkUtils.GetXid(d),
GdkUtils.GetXVisual(d.Visual),
width, height);
return(surface);
}
public static Cairo.Context CreateDrawable(Gdk.Drawable drawable, bool double_buffered)
{
int x, y, w, h, d;
Cairo.Surface surface;
bool needs_xlate;
((Gdk.Window)drawable).GetGeometry(out x, out y, out w, out h, out d);
PlatformID os = Environment.OSVersion.Platform;
needs_xlate = drawable is Gdk.Window && double_buffered;
if (needs_xlate)
{
((Gdk.Window)drawable).GetInternalPaintInfo(out drawable, out x, out y);
}
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);
if (double_buffered)
{
gdk_win32_hdc_release(drawable.Handle, gcc.Handle, 0);
}
}
else
{
IntPtr display = gdk_x11_drawable_get_xdisplay(drawable.Handle);
IntPtr visual = gdk_drawable_get_visual(drawable.Handle);
IntPtr xvisual = gdk_x11_visual_get_xvisual(visual);
IntPtr xdrawable = gdk_x11_drawable_get_xid(drawable.Handle);
surface = new XlibSurface(display, xdrawable, xvisual, w, h);
}
Cairo.Context ctx = new Cairo.Context(surface);
if (needs_xlate)
{
ctx.Translate(-(double)x, -(double)y);
}
return(ctx);
}
public static void SetSourceDrawable(Context ctx, Gdk.Drawable d, double x, double y)
{
try {
gdk_cairo_set_source_pixmap(ctx.Handle, d.Handle, x, y);
} catch (EntryPointNotFoundException) {
int width, height;
d.GetSize(out width, out height);
XlibSurface surface = new XlibSurface(GdkUtils.GetXDisplay(d.Display),
(IntPtr)GdkUtils.GetXid(d),
GdkUtils.GetXVisual(d.Visual),
width, height);
SurfacePattern p = new SurfacePattern(surface);
Matrix m = new Matrix();
m.Translate(-x, -y);
p.Matrix = m;
ctx.Source = p;
}
}
