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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.1, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <private/qt_mac_p.h>
#include "qcoreapplication.h"
#include <qlibrary.h>
QT_BEGIN_NAMESPACE
QRegion::QRegionData QRegion::shared_empty = { Q_BASIC_ATOMIC_INITIALIZER(1), 0 };
#if defined(Q_WS_MAC32) && !defined(QT_MAC_USE_COCOA)
#define RGN_CACHE_SIZE 200
#ifdef RGN_CACHE_SIZE
static bool rgncache_init = false;
static int rgncache_used;
static RgnHandle rgncache[RGN_CACHE_SIZE];
static void qt_mac_cleanup_rgncache()
{
rgncache_init = false;
for(int i = 0; i < RGN_CACHE_SIZE; ++i) {
if(rgncache[i]) {
--rgncache_used;
DisposeRgn(rgncache[i]);
rgncache[i] = 0;
}
}
}
#endif
Q_GUI_EXPORT RgnHandle qt_mac_get_rgn()
{
#ifdef RGN_CACHE_SIZE
if(!rgncache_init) {
rgncache_used = 0;
rgncache_init = true;
for(int i = 0; i < RGN_CACHE_SIZE; ++i)
rgncache[i] = 0;
qAddPostRoutine(qt_mac_cleanup_rgncache);
} else if(rgncache_used) {
for(int i = 0; i < RGN_CACHE_SIZE; ++i) {
if(rgncache[i]) {
RgnHandle ret = rgncache[i];
SetEmptyRgn(ret);
rgncache[i] = 0;
--rgncache_used;
return ret;
}
}
}
#endif
return NewRgn();
}
Q_GUI_EXPORT void qt_mac_dispose_rgn(RgnHandle r)
{
#ifdef RGN_CACHE_SIZE
if(rgncache_init && rgncache_used < RGN_CACHE_SIZE) {
for(int i = 0; i < RGN_CACHE_SIZE; ++i) {
if(!rgncache[i]) {
++rgncache_used;
rgncache[i] = r;
return;
}
}
}
#endif
DisposeRgn(r);
}
static OSStatus qt_mac_get_rgn_rect(UInt16 msg, RgnHandle, const Rect *rect, void *reg)
{
if(msg == kQDRegionToRectsMsgParse) {
QRect rct(rect->left, rect->top, (rect->right - rect->left), (rect->bottom - rect->top));
if(!rct.isEmpty())
*((QRegion *)reg) += rct;
}
return noErr;
}
Q_GUI_EXPORT QRegion qt_mac_convert_mac_region(RgnHandle rgn)
{
return QRegion::fromQDRgn(rgn);
}
QRegion QRegion::fromQDRgn(RgnHandle rgn)
{
QRegion ret;
ret.detach();
OSStatus oss = QDRegionToRects(rgn, kQDParseRegionFromTopLeft, qt_mac_get_rgn_rect, (void *)&ret);
if(oss != noErr)
return QRegion();
return ret;
}
/*!
\internal
Create's a RegionHandle, it's the caller's responsibility to release.
*/
RgnHandle QRegion::toQDRgn() const
{
RgnHandle rgnHandle = qt_mac_get_rgn();
if(d->qt_rgn && d->qt_rgn->numRects) {
RgnHandle tmp_rgn = qt_mac_get_rgn();
int n = d->qt_rgn->numRects;
const QRect *qt_r = (n == 1) ? &d->qt_rgn->extents : d->qt_rgn->rects.constData();
while (n--) {
SetRectRgn(tmp_rgn,
qMax(SHRT_MIN, qt_r->x()),
qMax(SHRT_MIN, qt_r->y()),
qMin(SHRT_MAX, qt_r->right() + 1),
qMin(SHRT_MAX, qt_r->bottom() + 1));
UnionRgn(rgnHandle, tmp_rgn, rgnHandle);
++qt_r;
}
qt_mac_dispose_rgn(tmp_rgn);
}
return rgnHandle;
}
/*!
\internal
Create's a RegionHandle, it's the caller's responsibility to release.
Returns 0 if the QRegion overflows.
*/
RgnHandle QRegion::toQDRgnForUpdate_sys() const
{
RgnHandle rgnHandle = qt_mac_get_rgn();
if(d->qt_rgn && d->qt_rgn->numRects) {
RgnHandle tmp_rgn = qt_mac_get_rgn();
int n = d->qt_rgn->numRects;
const QRect *qt_r = (n == 1) ? &d->qt_rgn->extents : d->qt_rgn->rects.constData();
while (n--) {
// detect overflow. Tested for use with HIViewSetNeedsDisplayInRegion
// in QWidgetPrivate::update_sys().
enum { HIViewSetNeedsDisplayInRegionOverflow = 10000 }; // empirically determined conservative value
if (qt_r->right() > HIViewSetNeedsDisplayInRegionOverflow || qt_r->bottom() > HIViewSetNeedsDisplayInRegionOverflow) {
qt_mac_dispose_rgn(tmp_rgn);
qt_mac_dispose_rgn(rgnHandle);
return 0;
}
SetRectRgn(tmp_rgn,
qMax(SHRT_MIN, qt_r->x()),
qMax(SHRT_MIN, qt_r->y()),
qMin(SHRT_MAX, qt_r->right() + 1),
qMin(SHRT_MAX, qt_r->bottom() + 1));
UnionRgn(rgnHandle, tmp_rgn, rgnHandle);
++qt_r;
}
qt_mac_dispose_rgn(tmp_rgn);
}
return rgnHandle;
}
#endif
#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)
OSStatus QRegion::shape2QRegionHelper(int inMessage, HIShapeRef,
const CGRect *inRect, void *inRefcon)
{
QRegion *region = static_cast<QRegion *>(inRefcon);
if (!region)
return paramErr;
switch (inMessage) {
case kHIShapeEnumerateRect:
*region += QRect(inRect->origin.x, inRect->origin.y,
inRect->size.width, inRect->size.height);
break;
case kHIShapeEnumerateInit:
// Assume the region is already setup correctly
case kHIShapeEnumerateTerminate:
default:
break;
}
return noErr;
}
#endif
/*!
\internal
Create's a mutable shape, it's the caller's responsibility to release.
WARNING: this function clamps the coordinates to SHRT_MIN/MAX on 10.4 and below.
*/
HIMutableShapeRef QRegion::toHIMutableShape() const
{
HIMutableShapeRef shape = HIShapeCreateMutable();
#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)
if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_5) {
if (d->qt_rgn && d->qt_rgn->numRects) {
int n = d->qt_rgn->numRects;
const QRect *qt_r = (n == 1) ? &d->qt_rgn->extents : d->qt_rgn->rects.constData();
while (n--) {
CGRect cgRect = CGRectMake(qt_r->x(), qt_r->y(), qt_r->width(), qt_r->height());
HIShapeUnionWithRect(shape, &cgRect);
++qt_r;
}
}
} else
#endif
{
#ifndef QT_MAC_USE_COCOA
QCFType<HIShapeRef> qdShape = HIShapeCreateWithQDRgn(QMacSmartQuickDrawRegion(toQDRgn()));
HIShapeUnion(qdShape, shape, shape);
#endif
}
return shape;
}
#if !defined(Q_WS_MAC64) && !defined(QT_MAC_USE_COCOA)
typedef OSStatus (*PtrHIShapeGetAsQDRgn)(HIShapeRef, RgnHandle);
static PtrHIShapeGetAsQDRgn ptrHIShapeGetAsQDRgn = 0;
#endif
QRegion QRegion::fromHIShapeRef(HIShapeRef shape)
{
QRegion returnRegion;
returnRegion.detach();
// Begin gratuitous #if-defery
#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)
# ifndef Q_WS_MAC64
if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_5) {
# endif
HIShapeEnumerate(shape, kHIShapeParseFromTopLeft, shape2QRegionHelper, &returnRegion);
# ifndef Q_WS_MAC64
} else
# endif
#endif
{
#if !defined(Q_WS_MAC64) && !defined(QT_MAC_USE_COCOA)
if (ptrHIShapeGetAsQDRgn == 0) {
QLibrary library(QLatin1String("/System/Library/Frameworks/Carbon.framework/Carbon"));
library.setLoadHints(QLibrary::ExportExternalSymbolsHint);
ptrHIShapeGetAsQDRgn = reinterpret_cast<PtrHIShapeGetAsQDRgn>(library.resolve("HIShapeGetAsQDRgn"));
}
RgnHandle rgn = qt_mac_get_rgn();
ptrHIShapeGetAsQDRgn(shape, rgn);
returnRegion = QRegion::fromQDRgn(rgn);
qt_mac_dispose_rgn(rgn);
#endif
}
return returnRegion;
}
QT_END_NAMESPACE
|