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 QtCore 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 QSEQUENTIALANIMATIONGROUP_P_H 41 #define QSEQUENTIALANIMATIONGROUP_P_H 42 43 // 44 // W A R N I N G 45 // ------------- 46 // 47 // This file is not part of the Qt API. It exists purely as an 48 // implementation detail. This header file may change from version to 49 // version without notice, or even be removed. 50 // 51 // We mean it. 52 // 53 54 #include "qsequentialanimationgroup.h" 55 #include "private/qanimationgroup_p.h" 56 57 QT_REQUIRE_CONFIG(animation); 58 59 QT_BEGIN_NAMESPACE 60 61 class QSequentialAnimationGroupPrivate : public QAnimationGroupPrivate 62 { Q_DECLARE_PUBLIC(QSequentialAnimationGroup)63 Q_DECLARE_PUBLIC(QSequentialAnimationGroup) 64 public: 65 QSequentialAnimationGroupPrivate() 66 : currentAnimation(nullptr), currentAnimationIndex(-1), lastLoop(0) 67 { } 68 69 70 struct AnimationIndex 71 { AnimationIndexAnimationIndex72 AnimationIndex() : index(0), timeOffset(0) {} 73 // index points to the animation at timeOffset, skipping 0 duration animations. 74 // Note that the index semantic is slightly different depending on the direction. 75 int index; // the index of the animation in timeOffset 76 int timeOffset; // time offset when the animation at index starts. 77 }; 78 79 int animationActualTotalDuration(int index) const; 80 AnimationIndex indexForCurrentTime() const; 81 82 void setCurrentAnimation(int index, bool intermediate = false); 83 void activateCurrentAnimation(bool intermediate = false); 84 85 void animationInsertedAt(int index) override; 86 void animationRemoved(int index, QAbstractAnimation *anim) override; 87 88 bool atEnd() const; 89 90 QAbstractAnimation *currentAnimation; 91 int currentAnimationIndex; 92 93 // this is the actual duration of uncontrolled animations 94 // it helps seeking and even going forward 95 QVector<int> actualDuration; 96 97 void restart(); 98 int lastLoop; 99 100 // handle time changes 101 void rewindForwards(const AnimationIndex &newAnimationIndex); 102 void advanceForwards(const AnimationIndex &newAnimationIndex); 103 104 // private slot 105 void _q_uncontrolledAnimationFinished(); 106 }; 107 108 QT_END_NAMESPACE 109 110 #endif //QSEQUENTIALANIMATIONGROUP_P_H 111