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 QSTYLEANIMATION_P_H 41 #define QSTYLEANIMATION_P_H 42 43 #include <QtWidgets/private/qtwidgetsglobal_p.h> 44 #include "qabstractanimation.h" 45 #include "qdatetime.h" 46 #include "qimage.h" 47 48 QT_REQUIRE_CONFIG(animation); 49 50 QT_BEGIN_NAMESPACE 51 52 // 53 // W A R N I N G 54 // ------------- 55 // 56 // This file is not part of the Qt API. It exists for the convenience of 57 // qcommonstyle.cpp. This header file may change from version to version 58 // without notice, or even be removed. 59 // 60 // We mean it. 61 // 62 63 class Q_WIDGETS_EXPORT QStyleAnimation : public QAbstractAnimation 64 { 65 Q_OBJECT 66 67 public: 68 QStyleAnimation(QObject *target); 69 virtual ~QStyleAnimation(); 70 71 QObject *target() const; 72 73 int duration() const override; 74 void setDuration(int duration); 75 76 int delay() const; 77 void setDelay(int delay); 78 79 QTime startTime() const; 80 void setStartTime(const QTime &time); 81 82 enum FrameRate { 83 DefaultFps, 84 SixtyFps, 85 ThirtyFps, 86 TwentyFps, 87 FifteenFps 88 }; 89 90 FrameRate frameRate() const; 91 void setFrameRate(FrameRate fps); 92 93 void updateTarget(); 94 95 public Q_SLOTS: 96 void start(); 97 98 protected: 99 virtual bool isUpdateNeeded() const; 100 virtual void updateCurrentTime(int time) override; 101 102 private: 103 int _delay; 104 int _duration; 105 QTime _startTime; 106 FrameRate _fps; 107 int _skip; 108 }; 109 110 class Q_WIDGETS_EXPORT QProgressStyleAnimation : public QStyleAnimation 111 { 112 Q_OBJECT 113 114 public: 115 QProgressStyleAnimation(int speed, QObject *target); 116 117 int animationStep() const; 118 int progressStep(int width) const; 119 120 int speed() const; 121 void setSpeed(int speed); 122 123 protected: 124 bool isUpdateNeeded() const override; 125 126 private: 127 int _speed; 128 mutable int _step; 129 }; 130 131 class Q_WIDGETS_EXPORT QNumberStyleAnimation : public QStyleAnimation 132 { 133 Q_OBJECT 134 135 public: 136 QNumberStyleAnimation(QObject *target); 137 138 qreal startValue() const; 139 void setStartValue(qreal value); 140 141 qreal endValue() const; 142 void setEndValue(qreal value); 143 144 qreal currentValue() const; 145 146 protected: 147 bool isUpdateNeeded() const override; 148 149 private: 150 qreal _start; 151 qreal _end; 152 mutable qreal _prev; 153 }; 154 155 class Q_WIDGETS_EXPORT QBlendStyleAnimation : public QStyleAnimation 156 { 157 Q_OBJECT 158 159 public: 160 enum Type { Transition, Pulse }; 161 162 QBlendStyleAnimation(Type type, QObject *target); 163 164 QImage startImage() const; 165 void setStartImage(const QImage& image); 166 167 QImage endImage() const; 168 void setEndImage(const QImage& image); 169 170 QImage currentImage() const; 171 172 protected: 173 virtual void updateCurrentTime(int time) override; 174 175 private: 176 Type _type; 177 QImage _start; 178 QImage _end; 179 QImage _current; 180 }; 181 182 class Q_WIDGETS_EXPORT QScrollbarStyleAnimation : public QNumberStyleAnimation 183 { 184 Q_OBJECT 185 186 public: 187 enum Mode { Activating, Deactivating }; 188 189 QScrollbarStyleAnimation(Mode mode, QObject *target); 190 191 Mode mode() const; 192 193 bool wasActive() const; 194 void setActive(bool active); 195 196 private slots: 197 void updateCurrentTime(int time) override; 198 199 private: 200 Mode _mode; 201 bool _active; 202 }; 203 204 QT_END_NAMESPACE 205 206 #endif // QSTYLEANIMATION_P_H 207