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
|
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QGRAPHICSEFFECT_P_H
#define QGRAPHICSEFFECT_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of qapplication_*.cpp, qwidget*.cpp and qfiledialog.cpp. This header
// file may change from version to version without notice, or even be removed.
//
// We mean it.
//
#include "qgraphicseffect.h"
#include <QPixmapCache>
#include <private/qobject_p.h>
#include <private/qpixmapfilter_p.h>
#ifndef QT_NO_GRAPHICSEFFECT
QT_BEGIN_NAMESPACE
class QGraphicsEffectSourcePrivate;
class Q_GUI_EXPORT QGraphicsEffectSource : public QObject
{
Q_OBJECT
public:
~QGraphicsEffectSource();
const QGraphicsItem *graphicsItem() const;
const QWidget *widget() const;
const QStyleOption *styleOption() const;
bool isPixmap() const;
void draw(QPainter *painter);
void update();
QRectF boundingRect(Qt::CoordinateSystem coordinateSystem = Qt::LogicalCoordinates) const;
QRect deviceRect() const;
QPixmap pixmap(Qt::CoordinateSystem system = Qt::LogicalCoordinates,
QPoint *offset = 0,
QGraphicsEffect::PixmapPadMode mode = QGraphicsEffect::PadToEffectiveBoundingRect) const;
protected:
QGraphicsEffectSource(QGraphicsEffectSourcePrivate &dd, QObject *parent = 0);
private:
Q_DECLARE_PRIVATE(QGraphicsEffectSource)
Q_DISABLE_COPY(QGraphicsEffectSource)
friend class QGraphicsEffect;
friend class QGraphicsEffectPrivate;
friend class QGraphicsScenePrivate;
friend class QGraphicsItem;
friend class QGraphicsItemPrivate;
friend class QWidget;
friend class QWidgetPrivate;
};
class QGraphicsEffectSourcePrivate : public QObjectPrivate
{
Q_DECLARE_PUBLIC(QGraphicsEffectSource)
public:
QGraphicsEffectSourcePrivate()
: QObjectPrivate()
, m_cachedSystem(Qt::DeviceCoordinates)
, m_cachedMode(QGraphicsEffect::PadToTransparentBorder)
{}
enum InvalidateReason
{
TransformChanged,
EffectRectChanged,
SourceChanged
};
virtual ~QGraphicsEffectSourcePrivate();
virtual void detach() = 0;
virtual QRectF boundingRect(Qt::CoordinateSystem system) const = 0;
virtual QRect deviceRect() const = 0;
virtual const QGraphicsItem *graphicsItem() const = 0;
virtual const QWidget *widget() const = 0;
virtual const QStyleOption *styleOption() const = 0;
virtual void draw(QPainter *p) = 0;
virtual void update() = 0;
virtual bool isPixmap() const = 0;
virtual QPixmap pixmap(Qt::CoordinateSystem system, QPoint *offset = 0,
QGraphicsEffect::PixmapPadMode mode = QGraphicsEffect::PadToTransparentBorder) const = 0;
virtual void effectBoundingRectChanged() = 0;
void setCachedOffset(const QPoint &offset);
void invalidateCache(InvalidateReason reason = SourceChanged) const;
Qt::CoordinateSystem currentCachedSystem() const { return m_cachedSystem; }
QGraphicsEffect::PixmapPadMode currentCachedMode() const { return m_cachedMode; }
friend class QGraphicsScenePrivate;
friend class QGraphicsItem;
friend class QGraphicsItemPrivate;
private:
mutable Qt::CoordinateSystem m_cachedSystem;
mutable QGraphicsEffect::PixmapPadMode m_cachedMode;
mutable QPoint m_cachedOffset;
mutable QPixmapCache::Key m_cacheKey;
};
class Q_GUI_EXPORT QGraphicsEffectPrivate : public QObjectPrivate
{
Q_DECLARE_PUBLIC(QGraphicsEffect)
public:
QGraphicsEffectPrivate() : source(0), isEnabled(1) {}
inline void setGraphicsEffectSource(QGraphicsEffectSource *newSource)
{
QGraphicsEffect::ChangeFlags flags;
if (source) {
flags |= QGraphicsEffect::SourceDetached;
source->d_func()->invalidateCache();
source->d_func()->detach();
delete source;
}
source = newSource;
if (newSource)
flags |= QGraphicsEffect::SourceAttached;
q_func()->sourceChanged(flags);
}
QGraphicsEffectSource *source;
QRectF boundingRect;
quint32 isEnabled : 1;
quint32 padding : 31; // feel free to use
};
class QGraphicsColorizeEffectPrivate : public QGraphicsEffectPrivate
{
Q_DECLARE_PUBLIC(QGraphicsColorizeEffect)
public:
QGraphicsColorizeEffectPrivate()
: opaque(true)
{
filter = new QPixmapColorizeFilter;
}
~QGraphicsColorizeEffectPrivate() { delete filter; }
QPixmapColorizeFilter *filter;
quint32 opaque : 1;
quint32 padding : 31;
};
class QGraphicsBlurEffectPrivate : public QGraphicsEffectPrivate
{
Q_DECLARE_PUBLIC(QGraphicsBlurEffect)
public:
QGraphicsBlurEffectPrivate() : filter(new QPixmapBlurFilter) {}
~QGraphicsBlurEffectPrivate() { delete filter; }
QPixmapBlurFilter *filter;
};
class QGraphicsDropShadowEffectPrivate : public QGraphicsEffectPrivate
{
Q_DECLARE_PUBLIC(QGraphicsDropShadowEffect)
public:
QGraphicsDropShadowEffectPrivate() : filter(new QPixmapDropShadowFilter) {}
~QGraphicsDropShadowEffectPrivate() { delete filter; }
QPixmapDropShadowFilter *filter;
};
class QGraphicsOpacityEffectPrivate : public QGraphicsEffectPrivate
{
Q_DECLARE_PUBLIC(QGraphicsOpacityEffect)
public:
QGraphicsOpacityEffectPrivate()
: opacity(qreal(0.7)), isFullyTransparent(0), isFullyOpaque(0), hasOpacityMask(0) {}
~QGraphicsOpacityEffectPrivate() {}
qreal opacity;
QBrush opacityMask;
uint isFullyTransparent : 1;
uint isFullyOpaque : 1;
uint hasOpacityMask : 1;
};
QT_END_NAMESPACE
#endif //QT_NO_GRAPHICSEFFECT
#endif // QGRAPHICSEFFECT_P_H
|
