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
|
/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtWidgets module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSTYLE_P_H
#define QSTYLE_P_H
#include "private/qobject_p.h"
#include <QtGui/qguiapplication.h>
#include <QtWidgets/qstyle.h>
QT_BEGIN_NAMESPACE
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of qstyle_*.cpp. This header file may change from version to version
// without notice, or even be removed.
//
// We mean it.
//
// Private class
class QStyle;
class QStylePrivate: public QObjectPrivate
{
Q_DECLARE_PUBLIC(QStyle)
public:
inline QStylePrivate()
: layoutSpacingIndex(-1), proxyStyle(0) {}
mutable int layoutSpacingIndex;
QStyle *proxyStyle;
};
inline QImage styleCacheImage(const QSize &size)
{
const qreal pixelRatio = qApp->devicePixelRatio();
QImage cacheImage = QImage(size * pixelRatio, QImage::Format_ARGB32_Premultiplied);
cacheImage.setDevicePixelRatio(pixelRatio);
return cacheImage;
}
inline QPixmap styleCachePixmap(const QSize &size)
{
const qreal pixelRatio = qApp->devicePixelRatio();
QPixmap cachePixmap = QPixmap(size * pixelRatio);
cachePixmap.setDevicePixelRatio(pixelRatio);
return cachePixmap;
}
#define BEGIN_STYLE_PIXMAPCACHE(a) \
QRect rect = option->rect; \
QPixmap internalPixmapCache; \
QImage imageCache; \
QPainter *p = painter; \
QString unique = QStyleHelper::uniqueName((a), option, option->rect.size()); \
int txType = painter->deviceTransform().type() | painter->worldTransform().type(); \
bool doPixmapCache = (!option->rect.isEmpty()) \
&& ((txType <= QTransform::TxTranslate) || (painter->deviceTransform().type() == QTransform::TxScale)); \
if (doPixmapCache && QPixmapCache::find(unique, internalPixmapCache)) { \
painter->drawPixmap(option->rect.topLeft(), internalPixmapCache); \
} else { \
if (doPixmapCache) { \
rect.setRect(0, 0, option->rect.width(), option->rect.height()); \
imageCache = styleCacheImage(option->rect.size()); \
imageCache.fill(0); \
p = new QPainter(&imageCache); \
}
#define END_STYLE_PIXMAPCACHE \
if (doPixmapCache) { \
p->end(); \
delete p; \
internalPixmapCache = QPixmap::fromImage(imageCache); \
painter->drawPixmap(option->rect.topLeft(), internalPixmapCache); \
QPixmapCache::insert(unique, internalPixmapCache); \
} \
}
QT_END_NAMESPACE
#endif //QSTYLE_P_H
|
