1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the QtWidgets module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** GNU Lesser General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU Lesser
19** General Public License version 3 as published by the Free Software
20** Foundation and appearing in the file LICENSE.LGPL3 included in the
21** packaging of this file. Please review the following information to
22** ensure the GNU Lesser General Public License version 3 requirements
23** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
24**
25** GNU General Public License Usage
26** Alternatively, this file may be used under the terms of the GNU
27** General Public License version 2.0 or (at your option) the GNU General
28** Public license version 3 or any later version approved by the KDE Free
29** Qt Foundation. The licenses are as published by the Free Software
30** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
31** included in the packaging of this file. Please review the following
32** information to ensure the GNU General Public License requirements will
33** be met: https://www.gnu.org/licenses/gpl-2.0.html and
34** https://www.gnu.org/licenses/gpl-3.0.html.
35**
36** $QT_END_LICENSE$
37**
38****************************************************************************/
39
40#ifndef QCOMMONSTYLE_P_H
41#define QCOMMONSTYLE_P_H
42
43#include <QtWidgets/private/qtwidgetsglobal_p.h>
44#include "qcommonstyle.h"
45#include "qstyle_p.h"
46#if QT_CONFIG(animation)
47#include "qstyleanimation_p.h"
48#endif
49#include "qstyleoption.h"
50
51QT_BEGIN_NAMESPACE
52
53//
54// W A R N I N G
55// -------------
56//
57// This file is not part of the Qt API. It exists for the convenience
58// of qapplication_*.cpp, qwidget*.cpp and qfiledialog.cpp. This header
59// file may change from version to version without notice, or even be removed.
60//
61// We mean it.
62//
63
64class QStringList;
65class QTextOption;
66
67// Private class
68class Q_WIDGETS_EXPORT QCommonStylePrivate : public QStylePrivate
69{
70 Q_DECLARE_PUBLIC(QCommonStyle)
71public:
72 inline QCommonStylePrivate() :
73#if QT_CONFIG(itemviews)
74 cachedOption(nullptr),
75#endif
76 animationFps(30)
77 { }
78
79 ~QCommonStylePrivate()
80 {
81#if QT_CONFIG(animation)
82 qDeleteAll(c: animations);
83#endif
84#if QT_CONFIG(itemviews)
85 delete cachedOption;
86#endif
87 }
88
89 QString calculateElidedText(const QString &text, const QTextOption &textOption,
90 const QFont &font, const QRect &textRect, const Qt::Alignment valign,
91 Qt::TextElideMode textElideMode, int flags,
92 bool lastVisibleLineShouldBeElided, QPointF *paintStartPosition) const;
93#if QT_CONFIG(itemviews)
94 void viewItemDrawText(QPainter *p, const QStyleOptionViewItem *option, const QRect &rect) const;
95 void viewItemLayout(const QStyleOptionViewItem *opt, QRect *checkRect,
96 QRect *pixmapRect, QRect *textRect, bool sizehint) const;
97 QSize viewItemSize(const QStyleOptionViewItem *option, int role) const;
98
99 mutable QRect decorationRect, displayRect, checkRect;
100 mutable QStyleOptionViewItem *cachedOption;
101 bool isViewItemCached(const QStyleOptionViewItem &option) const {
102 return cachedOption && (option.widget == cachedOption->widget
103 && option.index == cachedOption->index
104 && option.state == cachedOption->state
105 && option.rect == cachedOption->rect
106 && option.text == cachedOption->text
107 && option.direction == cachedOption->direction
108 && option.displayAlignment == cachedOption->displayAlignment
109 && option.decorationAlignment == cachedOption->decorationAlignment
110 && option.decorationPosition == cachedOption->decorationPosition
111 && option.decorationSize == cachedOption->decorationSize
112 && option.features == cachedOption->features
113 && option.icon.isNull() == cachedOption->icon.isNull()
114 && option.font == cachedOption->font
115 && option.viewItemPosition == cachedOption->viewItemPosition
116 && option.showDecorationSelected == cachedOption->showDecorationSelected);
117 }
118#endif
119#if QT_CONFIG(toolbutton)
120 QString toolButtonElideText(const QStyleOptionToolButton *toolbutton,
121 const QRect &textRect, int flags) const;
122#endif
123
124 mutable QIcon tabBarcloseButtonIcon;
125#if QT_CONFIG(tabbar)
126 virtual void tabLayout(const QStyleOptionTab *opt, const QWidget *widget, QRect *textRect, QRect *pixmapRect) const;
127#endif
128
129 int animationFps;
130#if QT_CONFIG(animation)
131 void _q_removeAnimation();
132
133 QList<const QObject*> animationTargets() const;
134 QStyleAnimation* animation(const QObject *target) const;
135 void startAnimation(QStyleAnimation *animation) const;
136 void stopAnimation(const QObject *target) const;
137
138private:
139 mutable QHash<const QObject*, QStyleAnimation*> animations;
140#endif // animation
141};
142
143QT_END_NAMESPACE
144
145#endif //QCOMMONSTYLE_P_H
146

source code of qtbase/src/widgets/styles/qcommonstyle_p.h