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1/////////////////////////////////////////////////////////////////////////////
2// Name: src/mac/carbon/utils.mm
3// Purpose: various cocoa mixin utility functions
4// Author: Stefan Csomor
5// Modified by:
6// Created: 1998-01-01
7// RCS-ID: $Id: utilscocoa.mm 48805 2007-09-19 14:52:25Z SC $
8// Copyright: (c) Stefan Csomor
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12#include "wx/wxprec.h"
13
14#include <Cocoa/Cocoa.h>
15
16#ifdef __WXMAC__
17#include "wx/mac/private.h"
18#endif
19
20#ifdef __WXMAC__
21
22bool wxMacInitCocoa()
23{
24 bool cocoaLoaded = NSApplicationLoad();
25 wxASSERT_MSG(cocoaLoaded,wxT("Couldn't load Cocoa in Carbon Environment")) ;
26 return cocoaLoaded;
27}
28
29wxMacAutoreleasePool::wxMacAutoreleasePool()
30{
31 m_pool = [[NSAutoreleasePool alloc] init];
32}
33
34wxMacAutoreleasePool::~wxMacAutoreleasePool()
35{
36 [(NSAutoreleasePool*)m_pool release];
37}
38
39#endif
40
41#ifdef __WXCOCOCA__
42
43CGContextRef wxMacGetContextFromCurrentNSContext()
44{
45 CGContextRef context = (CGContextRef)[[NSGraphicsContext currentContext]
46 graphicsPort];
47 return context;
48}
49
50#endif
51
52// ----------------------------------------------------------------------------
53// NSObject Utils
54// ----------------------------------------------------------------------------
55
56void wxMacCocoaRelease( void* obj )
57{
58 [(NSObject*)obj release];
59}
60
61void wxMacCocoaAutorelease( void* obj )
62{
63 [(NSObject*)obj autorelease];
64}
65
66void wxMacCocoaRetain( void* obj )
67{
68 [(NSObject*)obj retain];
69}
70
71// ----------------------------------------------------------------------------
72// NSImage Utils
73// ----------------------------------------------------------------------------
74
75// From "Cocoa Drawing Guide:Working with Images"
76WX_NSImage CreateNSImageFromCGImage( CGImageRef image )
77{
78 NSRect imageRect = NSMakeRect(0.0, 0.0, 0.0, 0.0);
79
80 // Get the image dimensions.
81 imageRect.size.height = CGImageGetHeight(image);
82 imageRect.size.width = CGImageGetWidth(image);
83
84 // Create a new image to receive the Quartz image data.
85 NSImage *newImage = [[NSImage alloc] initWithSize:imageRect.size];
86 [newImage lockFocus];
87
88 // Get the Quartz context and draw.
89 CGContextRef imageContext = (CGContextRef) [[NSGraphicsContext currentContext] graphicsPort];
90 CGContextDrawImage( imageContext, *(CGRect*)&imageRect, image );
91 [newImage unlockFocus];
92
93 return( newImage );
94}
95
96// ----------------------------------------------------------------------------
97// NSCursor Utils
98// ----------------------------------------------------------------------------
99
100#if wxMAC_USE_COCOA
101
102// copied from cursor.mm
103
104static NSCursor* wxGetStockCursor( short sIndex )
105{
106 ClassicCursor* pCursor = &gMacCursors[sIndex];
107
108 //Classic mac cursors are 1bps 16x16 black and white with a
109 //identical mask that is 1 for on and 0 for off
110 NSImage *theImage = [[NSImage alloc] initWithSize:NSMakeSize(16.0,16.0)];
111
112 //NSCursor takes an NSImage takes a number of Representations - here
113 //we need only one for the raw data
114 NSBitmapImageRep *theRep =
115 [[NSBitmapImageRep alloc]
116 initWithBitmapDataPlanes:nil // Allocate the buffer for us :)
117 pixelsWide:16
118 pixelsHigh:16
119 bitsPerSample:1
120 samplesPerPixel:2
121 hasAlpha:YES // Well, more like a mask...
122 isPlanar:NO
123 colorSpaceName:NSCalibratedWhiteColorSpace // Normal B/W - 0 black 1 white
124 bytesPerRow:0 // I don't care - figure it out for me :)
125 bitsPerPixel:2]; // bitsPerSample * samplesPerPixel
126
127 //unsigned int is better to put data in then a void*
128 //note that working with bitfields would be a lot better here -
129 //but since it breaks some compilers...
130 wxUint32 *data = (wxUint32 *)[theRep bitmapData];
131
132 //traverse through the bitmap data
133 for (int i = 0; i < 16; ++i)
134 {
135 //bit alpha bit alpha ... :D
136
137 //Notice the = instead of |= -
138 //this is to avoid doing a memset earlier
139 data[i] = 0;
140
141 //do the rest of those bits and alphas :)
142 for (int shift = 0; shift < 32; ++shift)
143 {
144 const int bit = 1 << (shift >> 1);
145 data[i] |= ( !!( (pCursor->mask[i] & bit) ) ) << shift;
146 data[i] |= ( !( (pCursor->bits[i] & bit) ) ) << ++shift;
147 }
148 }
149
150 //add the representation (data) to the image
151 [theImage addRepresentation:theRep];
152
153 //create the new cursor
154 NSCursor* theCursor = [[NSCursor alloc] initWithImage:theImage
155 hotSpot:NSMakePoint(pCursor->hotspot[1], pCursor->hotspot[0])
156 ];
157
158 //do the usual cleanups
159 [theRep release];
160 [theImage release];
161
162 //return the new cursor
163 return theCursor;
164}
165
166WX_NSCursor wxMacCocoaCreateStockCursor( int cursor_type )
167{
168 WX_NSCursor cursor = nil;
169 switch (cursor_type)
170 {
171 case wxCURSOR_COPY_ARROW:
172 cursor = [[NSCursor arrowCursor] retain];
173 break;
174
175 case wxCURSOR_WATCH:
176 case wxCURSOR_WAIT:
177 // should be displayed by the system when things are running
178 cursor = [[NSCursor arrowCursor] retain];
179 break;
180
181 case wxCURSOR_IBEAM:
182 cursor = [[NSCursor IBeamCursor] retain];
183 break;
184
185 case wxCURSOR_CROSS:
186 cursor = [[NSCursor crosshairCursor] retain];
187 break;
188
189 case wxCURSOR_SIZENWSE:
190 cursor = wxGetStockCursor(kwxCursorSizeNWSE);
191 break;
192
193 case wxCURSOR_SIZENESW:
194 cursor = wxGetStockCursor(kwxCursorSizeNESW);
195 break;
196
197 case wxCURSOR_SIZEWE:
198 cursor = [[NSCursor resizeLeftRightCursor] retain];
199 break;
200
201 case wxCURSOR_SIZENS:
202 cursor = [[NSCursor resizeUpDownCursor] retain];
203 break;
204
205 case wxCURSOR_SIZING:
206 cursor = wxGetStockCursor(kwxCursorSize);
207 break;
208
209 case wxCURSOR_HAND:
210 cursor = [[NSCursor pointingHandCursor] retain];
211 break;
212
213 case wxCURSOR_BULLSEYE:
214 cursor = wxGetStockCursor(kwxCursorBullseye);
215 break;
216
217 case wxCURSOR_PENCIL:
218 cursor = wxGetStockCursor(kwxCursorPencil);
219 break;
220
221 case wxCURSOR_MAGNIFIER:
222 cursor = wxGetStockCursor(kwxCursorMagnifier);
223 break;
224
225 case wxCURSOR_NO_ENTRY:
226 cursor = wxGetStockCursor(kwxCursorNoEntry);
227 break;
228
229 case wxCURSOR_PAINT_BRUSH:
230 cursor = wxGetStockCursor(kwxCursorPaintBrush);
231 break;
232
233 case wxCURSOR_POINT_LEFT:
234 cursor = wxGetStockCursor(kwxCursorPointLeft);
235 break;
236
237 case wxCURSOR_POINT_RIGHT:
238 cursor = wxGetStockCursor(kwxCursorPointRight);
239 break;
240
241 case wxCURSOR_QUESTION_ARROW:
242 cursor = wxGetStockCursor(kwxCursorQuestionArrow);
243 break;
244
245 case wxCURSOR_BLANK:
246 cursor = wxGetStockCursor(kwxCursorBlank);
247 break;
248
249 case wxCURSOR_RIGHT_ARROW:
250 cursor = wxGetStockCursor(kwxCursorRightArrow);
251 break;
252
253 case wxCURSOR_SPRAYCAN:
254 cursor = wxGetStockCursor(kwxCursorRoller);
255 break;
256
257 case wxCURSOR_CHAR:
258 case wxCURSOR_ARROW:
259 case wxCURSOR_LEFT_BUTTON:
260 case wxCURSOR_RIGHT_BUTTON:
261 case wxCURSOR_MIDDLE_BUTTON:
262 default:
263 cursor = [[NSCursor arrowCursor] retain];
264 break;
265 }
266 return cursor;
267}
268
269// C-based style wrapper routines around NSCursor
270WX_NSCursor wxMacCocoaCreateCursorFromCGImage( CGImageRef cgImageRef, float hotSpotX, float hotSpotY )
271{
272 static BOOL firstTime = YES;
273
274 if ( firstTime )
275 {
276 // Must first call [[[NSWindow alloc] init] release] to get the NSWindow machinery set up so that NSCursor can use a window to cache the cursor image
277 [[[NSWindow alloc] init] release];
278 firstTime = NO;
279 }
280
281 NSImage *nsImage = CreateNSImageFromCGImage( cgImageRef );
282 NSCursor *cursor = [[NSCursor alloc] initWithImage:nsImage hotSpot:NSMakePoint( hotSpotX, hotSpotY )];
283
284 [nsImage release];
285
286 return cursor;
287}
288
289void wxMacCocoaSetCursor( WX_NSCursor cursor )
290{
291 [cursor set];
292}
293
294void wxMacCocoaHideCursor()
295{
296 [NSCursor hide];
297}
298
299void wxMacCocoaShowCursor()
300{
301 [NSCursor unhide];
302}
303
304#endif