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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the QtCore module of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #ifndef QANIMATION_H |
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43 #define QANIMATION_H |
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44 |
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45 #include <QtCore/qeasingcurve.h> |
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46 #include <QtCore/qabstractanimation.h> |
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47 #include <QtCore/qvector.h> |
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48 #include <QtCore/qvariant.h> |
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49 #include <QtCore/qpair.h> |
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50 |
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51 QT_BEGIN_HEADER |
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52 |
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53 QT_BEGIN_NAMESPACE |
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54 |
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55 QT_MODULE(Core) |
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56 |
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57 #ifndef QT_NO_ANIMATION |
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58 |
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59 class QVariantAnimationPrivate; |
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60 class Q_CORE_EXPORT QVariantAnimation : public QAbstractAnimation |
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61 { |
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62 Q_OBJECT |
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63 Q_PROPERTY(QVariant startValue READ startValue WRITE setStartValue) |
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64 Q_PROPERTY(QVariant endValue READ endValue WRITE setEndValue) |
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65 Q_PROPERTY(QVariant currentValue READ currentValue NOTIFY valueChanged) |
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66 Q_PROPERTY(int duration READ duration WRITE setDuration) |
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67 Q_PROPERTY(QEasingCurve easingCurve READ easingCurve WRITE setEasingCurve) |
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68 |
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69 public: |
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70 typedef QPair<qreal, QVariant> KeyValue; |
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71 typedef QVector<KeyValue> KeyValues; |
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72 |
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73 QVariantAnimation(QObject *parent = 0); |
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74 ~QVariantAnimation(); |
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75 |
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76 QVariant startValue() const; |
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77 void setStartValue(const QVariant &value); |
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78 |
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79 QVariant endValue() const; |
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80 void setEndValue(const QVariant &value); |
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81 |
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82 QVariant keyValueAt(qreal step) const; |
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83 void setKeyValueAt(qreal step, const QVariant &value); |
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84 |
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85 KeyValues keyValues() const; |
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86 void setKeyValues(const KeyValues &values); |
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87 |
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88 QVariant currentValue() const; |
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89 |
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90 int duration() const; |
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91 void setDuration(int msecs); |
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92 |
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93 QEasingCurve easingCurve() const; |
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94 void setEasingCurve(const QEasingCurve &easing); |
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95 |
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96 typedef QVariant (*Interpolator)(const void *from, const void *to, qreal progress); |
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97 |
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98 Q_SIGNALS: |
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99 void valueChanged(const QVariant &value); |
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100 |
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101 protected: |
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102 QVariantAnimation(QVariantAnimationPrivate &dd, QObject *parent = 0); |
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103 bool event(QEvent *event); |
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104 |
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105 void updateCurrentTime(int); |
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106 void updateState(QAbstractAnimation::State oldState, QAbstractAnimation::State newState); |
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107 |
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108 virtual void updateCurrentValue(const QVariant &value) = 0; |
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109 virtual QVariant interpolated(const QVariant &from, const QVariant &to, qreal progress) const; |
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110 |
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111 private: |
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112 template <typename T> friend void qRegisterAnimationInterpolator(QVariant (*func)(const T &, const T &, qreal)); |
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113 static void registerInterpolator(Interpolator func, int interpolationType); |
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114 |
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115 Q_DISABLE_COPY(QVariantAnimation) |
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116 Q_DECLARE_PRIVATE(QVariantAnimation) |
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117 }; |
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118 |
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119 template <typename T> |
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120 void qRegisterAnimationInterpolator(QVariant (*func)(const T &from, const T &to, qreal progress)) { |
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121 QVariantAnimation::registerInterpolator(reinterpret_cast<QVariantAnimation::Interpolator>(func), qMetaTypeId<T>()); |
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122 } |
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123 |
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124 #endif //QT_NO_ANIMATION |
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125 |
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126 QT_END_NAMESPACE |
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127 |
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128 QT_END_HEADER |
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129 |
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130 #endif //QANIMATION_H |