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
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui 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 <qglobal.h> // for Q_WS_WIN define (non-PCH)
#include <QtGui/qpaintdevice.h>
#include <private/qwidget_p.h>
#include "qwindowsurface_s60_p.h"
#include "qt_s60_p.h"
#include "private/qdrawhelper_p.h"
QT_BEGIN_NAMESPACE
struct QS60WindowSurfacePrivate
{
QImage device;
CFbsBitmap *bitmap;
uchar* bytes;
// Since only one CFbsBitmap is allowed to be locked at a time, this is static.
static QS60WindowSurface* lockedSurface;
};
QS60WindowSurface* QS60WindowSurfacePrivate::lockedSurface = NULL;
QS60WindowSurface::QS60WindowSurface(QWidget* widget)
: QWindowSurface(widget), d_ptr(new QS60WindowSurfacePrivate)
{
d_ptr->bytes = 0;
d_ptr->bitmap = 0;
TDisplayMode mode = S60->screenDevice()->DisplayMode();
bool isOpaque = qt_widget_private(widget)->isOpaque;
if (mode == EColor16MA && isOpaque)
mode = EColor16MU; // Faster since 16MU -> 16MA is typically accelerated
else if (mode == EColor16MU && !isOpaque)
mode = EColor16MA; // Try for transparency anyway
// We create empty CFbsBitmap here -> it will be resized in setGeometry
d_ptr->bitmap = q_check_ptr(new CFbsBitmap); // CBase derived object needs check on new
qt_symbian_throwIfError( d_ptr->bitmap->Create(TSize(0, 0), mode ) );
updatePaintDeviceOnBitmap();
setStaticContentsSupport(true);
}
QS60WindowSurface::~QS60WindowSurface()
{
if (QS60WindowSurfacePrivate::lockedSurface == this)
unlockBitmapHeap();
delete d_ptr->bitmap;
delete d_ptr;
}
void QS60WindowSurface::beginPaint(const QRegion &rgn)
{
if(!d_ptr->bitmap)
return;
if (QS60WindowSurfacePrivate::lockedSurface)
unlockBitmapHeap();
QS60WindowSurfacePrivate::lockedSurface = this;
lockBitmapHeap();
if (!qt_widget_private(window())->isOpaque) {
QRgb *data = reinterpret_cast<QRgb *>(d_ptr->device.bits());
const int row_stride = d_ptr->device.bytesPerLine() / 4;
const QVector<QRect> rects = rgn.rects();
for (QVector<QRect>::const_iterator it = rects.begin(); it != rects.end(); ++it) {
const int x_start = it->x();
const int width = it->width();
const int y_start = it->y();
const int height = it->height();
QRgb *row = data + row_stride * y_start;
for (int y = 0; y < height; ++y) {
qt_memfill(row + x_start, 0U, width);
row += row_stride;
}
}
}
}
void QS60WindowSurface::flush(QWidget *widget, const QRegion ®ion, const QPoint &)
{
const QVector<QRect> subRects = region.rects();
for (int i = 0; i < subRects.count(); ++i) {
TRect tr = qt_QRect2TRect(subRects[i]);
widget->winId()->DrawNow(tr);
}
}
bool QS60WindowSurface::scroll(const QRegion &area, int dx, int dy)
{
QRect rect = area.boundingRect();
if (dx == 0 && dy == 0)
return false;
if (d_ptr->device.isNull())
return false;
CFbsBitmapDevice *bitmapDevice = 0;
QT_TRAP_THROWING(bitmapDevice = CFbsBitmapDevice::NewL(d_ptr->bitmap));
CBitmapContext *bitmapContext;
TInt err = bitmapDevice->CreateBitmapContext(bitmapContext);
if (err != KErrNone) {
CBase::Delete(bitmapDevice);
return false;
}
bitmapContext->CopyRect(TPoint(dx, dy), qt_QRect2TRect(rect));
CBase::Delete(bitmapContext);
CBase::Delete(bitmapDevice);
return true;
}
void QS60WindowSurface::endPaint(const QRegion & /* rgn */)
{
if(!d_ptr->bitmap)
return;
Q_ASSERT(QS60WindowSurfacePrivate::lockedSurface);
unlockBitmapHeap();
QS60WindowSurfacePrivate::lockedSurface = NULL;
}
QPaintDevice* QS60WindowSurface::paintDevice()
{
return &d_ptr->device;
}
void QS60WindowSurface::setGeometry(const QRect& rect)
{
if (rect == geometry())
return;
QWindowSurface::setGeometry(rect);
TRect nativeRect(qt_QRect2TRect(rect));
qt_symbian_throwIfError(d_ptr->bitmap->Resize(nativeRect.Size()));
if (!rect.isNull())
updatePaintDeviceOnBitmap();
}
void QS60WindowSurface::lockBitmapHeap()
{
if (!QS60WindowSurfacePrivate::lockedSurface)
return;
// Get some local variables to make later code lines more clear to read
CFbsBitmap*& bitmap = QS60WindowSurfacePrivate::lockedSurface->d_ptr->bitmap;
QImage& device = QS60WindowSurfacePrivate::lockedSurface->d_ptr->device;
uchar*& bytes = QS60WindowSurfacePrivate::lockedSurface->d_ptr->bytes;
bitmap->LockHeap();
uchar *newBytes = (uchar*)bitmap->DataAddress();
if (newBytes != bytes) {
bytes = newBytes;
// Get some values for QImage creation
TDisplayMode mode = bitmap->DisplayMode();
if (mode == EColor16MA
&& qt_widget_private(QS60WindowSurfacePrivate::lockedSurface->window())->isOpaque)
mode = EColor16MU;
QImage::Format format = qt_TDisplayMode2Format( mode );
TSize bitmapSize = bitmap->SizeInPixels();
int bytesPerLine = CFbsBitmap::ScanLineLength( bitmapSize.iWidth, mode);
device = QImage( bytes, bitmapSize.iWidth, bitmapSize.iHeight, bytesPerLine, format );
}
}
void QS60WindowSurface::unlockBitmapHeap()
{
if (!QS60WindowSurfacePrivate::lockedSurface)
return;
QS60WindowSurfacePrivate::lockedSurface->d_ptr->bitmap->UnlockHeap();
}
void QS60WindowSurface::updatePaintDeviceOnBitmap()
{
// This forces the actual device to be updated based on CFbsBitmap
beginPaint(QRegion());
endPaint(QRegion());
}
CFbsBitmap *QS60WindowSurface::symbianBitmap() const
{
return d_ptr->bitmap;
}
QT_END_NAMESPACE
|
