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//
// System.Drawing.carbonFunctions.cs
//
// Authors:
// Geoff Norton (gnorton@customerdna.com>
//
// 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.Runtime.InteropServices;
using System.Security;
namespace System.Drawing {
[SuppressUnmanagedCodeSecurity]
internal class Carbon {
internal static CarbonContext GetCGContextForNSView (IntPtr hwnd) {
IntPtr cgContext = IntPtr.Zero;
cgContext = objc_msgSend (objc_msgSend (objc_getClass ("NSGraphicsContext"), sel_registerName ("currentContext")), sel_registerName ("graphicsPort"));
HIRect rect = new HIRect ();
objc_msgSend_stret (ref rect, hwnd, sel_registerName ("bounds"));
return new CarbonContext (cgContext, (int)rect.size.width, (int)rect.size.height);
}
internal static CarbonContext GetCGContextForView (IntPtr hwnd) {
IntPtr cgContext = IntPtr.Zero;
// Grab the window we're in
IntPtr window = Carbon.GetControlOwner (hwnd);
// Get the port of the window
IntPtr port = Carbon.GetWindowPort (window);
// Create a CGContext ref
Carbon.CreateCGContextForPort (port, ref cgContext);
// Get the bounds of the window
QRect wBounds = new QRect ();
Carbon.GetWindowBounds (window, 32, ref wBounds);
// Get the bounds of the view
HIRect vBounds = new HIRect ();
Carbon.HIViewGetBounds (hwnd, ref vBounds);
// Convert the view local bounds to window coordinates
Carbon.HIViewConvertRect (ref vBounds, hwnd, IntPtr.Zero);
Carbon.CGContextTranslateCTM (cgContext, vBounds.origin.x, (wBounds.bottom-wBounds.top)-(vBounds.origin.y+vBounds.size.height));
/* FIXME: Do we need this or is it inherintly clipped */
HIRect rcClip = new HIRect ();
rcClip.origin.x = 0;
rcClip.origin.y = 0;
rcClip.size.width = vBounds.size.width;
rcClip.size.height = vBounds.size.height;
Carbon.CGContextClipToRect (cgContext, rcClip);
return new CarbonContext (cgContext, (int)vBounds.size.width, (int)vBounds.size.height);
}
#region Cocoa Methods
[DllImport("libobjc.dylib")]
public static extern IntPtr objc_getClass(string className);
[DllImport("libobjc.dylib")]
public static extern IntPtr objc_msgSend(IntPtr basePtr, IntPtr selector, string argument);
[DllImport("libobjc.dylib")]
public static extern IntPtr objc_msgSend(IntPtr basePtr, IntPtr selector);
[DllImport("libobjc.dylib")]
public static extern void objc_msgSend_stret(ref HIRect arect, IntPtr basePtr, IntPtr selector);
[DllImport("libobjc.dylib")]
public static extern IntPtr sel_registerName(string selectorName);
#endregion
[DllImport("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
internal static extern int HIViewGetBounds (IntPtr vHnd, ref HIRect r);
[DllImport("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
internal static extern int HIViewConvertRect (ref HIRect r, IntPtr a, IntPtr b);
[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
internal static extern IntPtr GetControlOwner (IntPtr aView);
[DllImport("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
internal static extern int GetWindowBounds (IntPtr wHnd, uint reg, ref QRect rect);
[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
internal static extern IntPtr GetWindowPort (IntPtr hWnd);
[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
internal static extern int CGContextClipToRect (IntPtr cgContext, HIRect clip);
[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
internal static extern void CreateCGContextForPort (IntPtr port, ref IntPtr cgc);
[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
internal static extern void CGContextTranslateCTM (IntPtr cgc, double tx, double ty);
[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
internal static extern void CGContextScaleCTM (IntPtr cgc, double x, double y);
[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
internal static extern void CGContextFlush (IntPtr cgc);
[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
internal static extern void CGContextSynchronize (IntPtr cgc);
}
internal struct CGSize {
public float width;
public float height;
}
internal struct CGPoint {
public float x;
public float y;
}
internal struct HIRect {
public CGPoint origin;
public CGSize size;
}
internal struct QRect
{
public short top;
public short left;
public short bottom;
public short right;
}
internal struct CarbonContext
{
public IntPtr ctx;
public int width;
public int height;
public CarbonContext (IntPtr ctx, int width, int height)
{
this.ctx = ctx;
this.width = width;
this.height = height;
}
}
}
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