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author | axis <qt-info@nokia.com> | 2009-04-24 11:34:15 (GMT) |
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committer | axis <qt-info@nokia.com> | 2009-04-24 11:34:15 (GMT) |
commit | 8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76 (patch) | |
tree | a17e1a767a89542ab59907462206d7dcf2e504b2 /demos/qtdemo/demoitemanimation.cpp | |
download | Qt-8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76.zip Qt-8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76.tar.gz Qt-8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76.tar.bz2 |
Long live Qt for S60!
Diffstat (limited to 'demos/qtdemo/demoitemanimation.cpp')
-rw-r--r-- | demos/qtdemo/demoitemanimation.cpp | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/demos/qtdemo/demoitemanimation.cpp b/demos/qtdemo/demoitemanimation.cpp new file mode 100644 index 0000000..92b2d24 --- /dev/null +++ b/demos/qtdemo/demoitemanimation.cpp @@ -0,0 +1,219 @@ +/**************************************************************************** +** +** 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. + } +} + + + + + |