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authoraxis <qt-info@nokia.com>2009-04-24 11:34:15 (GMT)
committeraxis <qt-info@nokia.com>2009-04-24 11:34:15 (GMT)
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Long live Qt for S60!
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "demoitemanimation.h"
+#include "demoitem.h"
+#include "colors.h"
+
+DemoItemAnimation::DemoItemAnimation(DemoItem *item, INOROUT inOrOut)
+{
+ this->opacityAt0 = 1.0;
+ this->opacityAt1 = 1.0;
+ this->startDelay = 0;
+ this->inOrOut = inOrOut;
+ this->hideOnFinished = false;
+ this->forcePlay = false;
+ this->timeline = new QTimeLine(5000);
+ this->timeline->setFrameRange(0, 2000);
+ this->timeline->setUpdateInterval(int(1000.0/Colors::fps));
+ this->moveOnPlay = false;
+ setTimeLine(this->timeline);
+ setItem(item);
+}
+
+DemoItemAnimation::~DemoItemAnimation()
+{
+ // Do not delete demoitem. It is not
+ // owned by an animation
+ delete this->timeline;
+}
+
+void DemoItemAnimation::prepare()
+{
+ this->demoItem()->prepare();
+}
+
+void DemoItemAnimation::setStartPos(const QPointF &pos){
+ this->startPos = pos;
+}
+
+void DemoItemAnimation::setDuration(int duration)
+{
+ duration = int(duration * Colors::animSpeed);
+ this->timeline->setDuration(duration);
+ this->moveOnPlay = true;
+}
+
+void DemoItemAnimation::setCurrentTime(int ms)
+{
+ this->timeline->setCurrentTime(ms);
+}
+
+bool DemoItemAnimation::notOwnerOfItem()
+{
+ return this != demoItem()->currentAnimation;
+}
+
+void DemoItemAnimation::play(bool fromStart, bool force)
+{
+ this->fromStart = fromStart;
+ this->forcePlay = force;
+
+ QPointF currPos = this->demoItem()->pos();
+
+ // If the item that this animation controls in currently under the
+ // control of another animation, stop that animation first
+ if (this->demoItem()->currentAnimation)
+ this->demoItem()->currentAnimation->timeline->stop();
+ this->demoItem()->currentAnimation = this;
+ this->timeline->stop();
+
+ if (Colors::noAnimations && !this->forcePlay){
+ this->timeline->setCurrentTime(1);
+ this->demoItem()->setPos(this->posAt(1));
+ }
+ else{
+ if (this->demoItem()->isVisible())
+ // If the item is already visible, start the animation from
+ // the items current position rather than from start.
+ this->setPosAt(0.0, currPos);
+ else
+ this->setPosAt(0.0, this->startPos);
+
+ if (this->fromStart){
+ this->timeline->setCurrentTime(0);
+ this->demoItem()->setPos(this->posAt(0));
+ }
+ }
+
+ if (this->inOrOut == ANIM_IN)
+ this->demoItem()->setRecursiveVisible(true);
+
+ if (this->startDelay){
+ QTimer::singleShot(this->startDelay, this, SLOT(playWithoutDelay()));
+ return;
+ }
+ else
+ this->playWithoutDelay();
+}
+
+void DemoItemAnimation::playWithoutDelay()
+{
+ if (this->moveOnPlay && !(Colors::noAnimations && !this->forcePlay))
+ this->timeline->start();
+ this->demoItem()->animationStarted(this->inOrOut);
+}
+
+void DemoItemAnimation::stop(bool reset)
+{
+ this->timeline->stop();
+ if (reset)
+ this->demoItem()->setPos(this->posAt(0));
+ if (this->hideOnFinished && !this->moveOnPlay)
+ this->demoItem()->setRecursiveVisible(false);
+ this->demoItem()->animationStopped(this->inOrOut);
+}
+
+void DemoItemAnimation::setRepeat(int nr)
+{
+ this->timeline->setLoopCount(nr);
+}
+
+void DemoItemAnimation::playReverse()
+{
+}
+
+bool DemoItemAnimation::running()
+{
+ return (this->timeLine()->state() == QTimeLine::Running);
+}
+
+bool DemoItemAnimation::runningOrItemLocked()
+{
+ return (this->running() || this->demoItem()->locked);
+}
+
+void DemoItemAnimation::lockItem(bool state)
+{
+ this->demoItem()->locked = state;
+}
+
+DemoItem *DemoItemAnimation::demoItem()
+{
+ return (DemoItem *) this->item();
+}
+
+void DemoItemAnimation::setOpacityAt0(qreal opacity)
+{
+ this->opacityAt0 = opacity;
+}
+
+void DemoItemAnimation::setOpacityAt1(qreal opacity)
+{
+ this->opacityAt1 = opacity;
+}
+
+void DemoItemAnimation::setOpacity(qreal step)
+{
+ DemoItem *demoItem = (DemoItem *) item();
+ demoItem->opacity = this->opacityAt0 + step * step * step * (this->opacityAt1 - this->opacityAt0);
+}
+
+void DemoItemAnimation::afterAnimationStep(qreal step)
+{
+ if (step == 1.0f){
+ if (this->timeline->loopCount() > 0){
+ // animation finished.
+ if (this->hideOnFinished)
+ this->demoItem()->setRecursiveVisible(false);
+ this->demoItem()->animationStopped(this->inOrOut);
+ }
+ } else if (Colors::noAnimations && !this->forcePlay){
+ // The animation is not at end, but
+ // the animations should not play, so go to end.
+ this->setStep(1.0f); // will make this method being called recursive.
+ }
+}
+
+
+
+
+