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-/****************************************************************************
-**
-** 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 Declarative module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** GNU Lesser General Public License Usage
-** 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.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU General
-** Public License version 3.0 as published by the Free Software Foundation
-** and appearing in the file LICENSE.GPL included in the packaging of this
-** file. Please review the following information to ensure the GNU General
-** Public License version 3.0 requirements will be met:
-** http://www.gnu.org/copyleft/gpl.html.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms and
-** conditions contained in a signed written agreement between you and Nokia.
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QQUICKSPRITEENGINE_P_H
-#define QQUICKSPRITEENGINE_P_H
-
-#include <QObject>
-#include <QVector>
-#include <QTimer>
-#include <QTime>
-#include <QList>
-#include <QDeclarativeListProperty>
-#include <QImage>
-#include <QPair>
-
-QT_BEGIN_HEADER
-
-QT_BEGIN_NAMESPACE
-
-QT_MODULE(Declarative)
-
-class QQuickSprite;
-class Q_AUTOTEST_EXPORT QQuickStochasticState : public QObject //For internal use
-{
- Q_OBJECT
- Q_PROPERTY(int duration READ duration WRITE setDuration NOTIFY durationChanged)
- Q_PROPERTY(int durationVariation READ durationVariance WRITE setDurationVariance NOTIFY durationVarianceChanged)
- Q_PROPERTY(QVariantMap to READ to WRITE setTo NOTIFY toChanged)
- Q_PROPERTY(QString name READ name WRITE setName NOTIFY nameChanged)
- Q_PROPERTY(qreal speedModifiesDuration READ speedModifer WRITE setSpeedModifier NOTIFY speedModifierChanged)
- Q_PROPERTY(int frames READ frames WRITE setFrames NOTIFY framesChanged)
-
-public:
- QQuickStochasticState(QObject* parent = 0)
- : QObject(parent)
- , m_frames(1)
- , m_duration(1000)
- {
- }
-
- int duration() const
- {
- return m_duration;
- }
-
- QString name() const
- {
- return m_name;
- }
-
- QVariantMap to() const
- {
- return m_to;
- }
-
- qreal speedModifer() const
- {
- return m_speedModifier;
- }
-
- int durationVariance() const
- {
- return m_durationVariance;
- }
-
-
- int variedDuration() const
- {
- return m_duration
- + (m_durationVariance * ((qreal)qrand()/RAND_MAX) * 2)
- - m_durationVariance;
- }
-
- int frames() const
- {
- return m_frames;
- }
-
-signals:
- void durationChanged(int arg);
-
- void nameChanged(QString arg);
-
- void toChanged(QVariantMap arg);
-
- void speedModifierChanged(qreal arg);
-
- void durationVarianceChanged(int arg);
-
- void entered();//### Just playing around - don't expect full state API
- void framesChanged(int arg);
-
-public slots:
- void setDuration(int arg)
- {
- if (m_duration != arg) {
- m_duration = arg;
- emit durationChanged(arg);
- }
- }
-
- void setName(QString arg)
- {
- if (m_name != arg) {
- m_name = arg;
- emit nameChanged(arg);
- }
- }
-
- void setTo(QVariantMap arg)
- {
- if (m_to != arg) {
- m_to = arg;
- emit toChanged(arg);
- }
- }
-
- void setSpeedModifier(qreal arg)
- {
- if (m_speedModifier != arg) {
- m_speedModifier = arg;
- emit speedModifierChanged(arg);
- }
- }
-
- void setDurationVariance(int arg)
- {
- if (m_durationVariance != arg) {
- m_durationVariance = arg;
- emit durationVarianceChanged(arg);
- }
- }
-
- void setFrames(int arg)
- {
- if (m_frames != arg) {
- m_frames = arg;
- emit framesChanged(arg);
- }
- }
-
-private:
- QString m_name;
- int m_frames;
- QVariantMap m_to;
- int m_duration;
- qreal m_speedModifier;
- int m_durationVariance;
-
- friend class QQuickStochasticEngine;
-};
-
-class Q_AUTOTEST_EXPORT QQuickStochasticEngine : public QObject
-{
- Q_OBJECT
- //TODO: Optimize single state case?
- Q_PROPERTY(QString globalGoal READ globalGoal WRITE setGlobalGoal NOTIFY globalGoalChanged)
- Q_PROPERTY(QDeclarativeListProperty<QQuickStochasticState> states READ states)
-public:
- explicit QQuickStochasticEngine(QObject *parent = 0);
- QQuickStochasticEngine(QList<QQuickStochasticState*> states, QObject *parent=0);
- ~QQuickStochasticEngine();
-
- QDeclarativeListProperty<QQuickStochasticState> states()
- {
- return QDeclarativeListProperty<QQuickStochasticState>(this, m_states);
- }
-
- QString globalGoal() const
- {
- return m_globalGoal;
- }
-
- int count() const {return m_things.count();}
- void setCount(int c);
-
- void setGoal(int state, int sprite=0, bool jump=false);
- void start(int index=0, int state=0);
- void stop(int index=0);
- int curState(int index=0) {return m_things[index];}
-
- QQuickStochasticState* state(int idx){return m_states[idx];}
- int stateIndex(QQuickStochasticState* s){return m_states.indexOf(s);}
- int stateIndex(const QString& s) {
- for (int i=0; i<m_states.count(); i++)
- if (m_states[i]->name() == s)
- return i;
- return -1;
- }
-
- int stateCount() {return m_states.count();}
-private:
-signals:
-
- void globalGoalChanged(QString arg);
- void stateChanged(int idx);
-
-public slots:
- void setGlobalGoal(QString arg)
- {
- if (m_globalGoal != arg) {
- m_globalGoal = arg;
- emit globalGoalChanged(arg);
- }
- }
-
- uint updateSprites(uint time);
-
-protected:
- friend class QQuickParticleSystem;
- void restart(int index);
- void addToUpdateList(uint t, int idx);
- int goalSeek(int curState, int idx, int dist=-1);
- QList<QQuickStochasticState*> m_states;
- //### Consider struct or class for the four data variables?
- QVector<int> m_things;//int is the index in m_states of the current state
- QVector<int> m_goals;
- QVector<int> m_duration;
- QVector<int> m_startTimes;
- QList<QPair<uint, QList<int> > > m_stateUpdates;//### This could be done faster - priority queue?
-
- QTime m_advanceTime;
- uint m_timeOffset;
- QString m_globalGoal;
- int m_maxFrames;
- int m_imageStateCount;
-};
-
-class QQuickSpriteEngine : public QQuickStochasticEngine
-{
- Q_OBJECT
- Q_PROPERTY(QDeclarativeListProperty<QQuickSprite> sprites READ sprites)
-public:
- explicit QQuickSpriteEngine(QObject *parent = 0);
- QQuickSpriteEngine(QList<QQuickSprite*> sprites, QObject *parent=0);
- ~QQuickSpriteEngine();
- QDeclarativeListProperty<QQuickSprite> sprites()
- {
- return QDeclarativeListProperty<QQuickSprite>(this, m_sprites);
- }
-
-
- int spriteState(int sprite=0);
- int spriteStart(int sprite=0);
- int spriteFrames(int sprite=0);
- int spriteDuration(int sprite=0);
- int spriteX(int /* sprite */ = 0) { return 0; }//Currently all rows are 0 aligned, if we get more space efficient we might change this
- int spriteY(int sprite=0);
- int spriteWidth(int sprite=0);
- int spriteHeight(int sprite=0);
- int spriteCount();//Like state count, but for the image states
- int maxFrames();
- QImage assembledImage();
-private:
- QList<QQuickSprite*> m_sprites;
-};
-
-//Common use is to have your own list property which is transparently an engine
-inline void spriteAppend(QDeclarativeListProperty<QQuickSprite> *p, QQuickSprite* s)
-{
- reinterpret_cast<QList<QQuickSprite *> *>(p->data)->append(s);
- p->object->metaObject()->invokeMethod(p->object, "createEngine");
-}
-
-inline QQuickSprite* spriteAt(QDeclarativeListProperty<QQuickSprite> *p, int idx)
-{
- return reinterpret_cast<QList<QQuickSprite *> *>(p->data)->at(idx);
-}
-
-inline void spriteClear(QDeclarativeListProperty<QQuickSprite> *p)
-{
- reinterpret_cast<QList<QQuickSprite *> *>(p->data)->clear();
- p->object->metaObject()->invokeMethod(p->object, "createEngine");
-}
-
-inline int spriteCount(QDeclarativeListProperty<QQuickSprite> *p)
-{
- return reinterpret_cast<QList<QQuickSprite *> *>(p->data)->count();
-}
-
-QT_END_NAMESPACE
-
-QT_END_HEADER
-
-#endif // QQUICKSPRITEENGINE_P_H
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