1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
//
// 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;
}
}
}
|
