add the concept of element animation. right now it only provides support for modifying a pixmap; positioning needs to be added, but this at least shows that it works(tm)
the idea is that you register an element animation and get back an id. you can associate a pixmap with that id and off you go. the item gets update() calls whenever the anim changes and you can fetch your precious little pixmap back with a call to animationResult. svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=677782
This commit is contained in:
Aaron J. Seigo
parent
f16c087846
commit
30f07bb62c
211
phase.cpp
211
phase.cpp
@ -35,7 +35,18 @@ struct AnimationState
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{
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QGraphicsItem* item;
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Phase::Animation animation;
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qreal frames;
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int frames;
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};
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struct ElementAnimationState
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{
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QGraphicsItem* item;
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QTimeLine* timeline;
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Phase::ElementAnimation animation;
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int frames;
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int currentFrame;
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int id;
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QPixmap pixmap;
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};
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class Phase::Private
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@ -43,7 +54,8 @@ class Phase::Private
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public:
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Private()
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: animator(0)
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: animator(0),
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animId(0)
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{
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}
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@ -54,12 +66,15 @@ class Phase::Private
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}
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Animator* animator;
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int animId;
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//TODO: eventually perhaps we should allow multiple animations simulataneously
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// which would imply changing this to a QMap<QGraphicsItem*, QList<QTimeLine*> >
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// and really making the code fun ;)
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QMap<QGraphicsItem*, QTimeLine*> theAnimated;
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QMap<QTimeLine*, AnimationState> animations;
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QMap<Phase::AnimId, ElementAnimationState> theAnimatedElements;
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QMap<QTimeLine*, Phase::AnimId> elementAnimations;
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};
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class PhaseSingleton
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@ -102,9 +117,9 @@ void Phase::appletDestroyed(QObject* o)
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return;
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}
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delete it.value();
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d->animations.erase(d->animations.find(it.value()));
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d->theAnimated.erase(it);
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delete it.value();
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}
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void Phase::animate(QGraphicsItem* item, Animation animation)
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@ -116,22 +131,9 @@ void Phase::animate(QGraphicsItem* item, Animation animation)
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d->animations.erase(d->animations.find(it.value()));
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}
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int frames = 0;
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//TODO: allow the animator to define this?
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QTimeLine::CurveShape curveShape = QTimeLine::EaseInOutCurve;
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switch (animation) {
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case Appear:
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frames = d->animator->appearFrames();
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break;
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case Disappear:
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frames = d->animator->disappearFrames();
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break;
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case Activate:
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frames = d->animator->activateFrames();
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break;
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case FrameAppear:
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frames = d->animator->activateFrames();
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break;
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}
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int frames = d->animator->frameCount(animation);
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if (frames < 1) {
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return;
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@ -140,8 +142,10 @@ void Phase::animate(QGraphicsItem* item, Animation animation)
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AnimationState state;
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state.item = item;
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state.animation = animation;
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//TODO: variance in times based on the value of animation
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state.frames = frames / 3;
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//TODO: variance in times based on the value of animation
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QTimeLine* timeLine = new QTimeLine(333, this);
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timeLine->setFrameRange(0, state.frames);
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timeLine->setCurveShape(curveShape);
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@ -159,7 +163,7 @@ void Phase::advanceFrame(int frame)
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QTimeLine* timeLine = dynamic_cast<QTimeLine*>(sender());
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if (!timeLine) {
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kDebug() << "Phase::advanceFrame found no timeLine!" << endl;
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//kDebug() << "Phase::advanceFrame found no timeLine!" << endl;
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return;
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}
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@ -171,24 +175,26 @@ void Phase::advanceFrame(int frame, QTimeLine* timeLine)
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QMap<QTimeLine*, AnimationState>::iterator it = d->animations.find(timeLine);
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if (it == d->animations.end()) {
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kDebug() << "Phase::advanceFrame found no entry in animations!" << endl;
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//kDebug() << "Phase::advanceFrame found no entry in animations!" << endl;
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return;
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}
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AnimationState state = it.value();
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qreal progress = state.frames;
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progress = frame / progress;
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switch (state.animation) {
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case Appear:
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d->animator->appear(frame / state.frames, state.item);
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d->animator->appear(progress, state.item);
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break;
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case Disappear:
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d->animator->disappear(frame, state.item);
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d->animator->disappear(progress, state.item);
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break;
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case Activate:
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d->animator->activate(frame, state.item);
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d->animator->activate(progress, state.item);
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break;
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case FrameAppear:
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d->animator->frameAppear(frame, state.item, QRegion()); //FIXME: what -is- the frame region?
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d->animator->frameAppear(progress, state.item, QRegion()); //FIXME: what -is- the frame region?
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break;
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}
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}
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@ -231,7 +237,7 @@ void Phase::animationComplete()
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}
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d->animations.erase(it);
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delete tl;
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tl->deleteLater();
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}
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void Phase::render(QGraphicsItem* item, QImage& image, RenderOp op)
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@ -244,6 +250,161 @@ void Phase::render(QGraphicsItem* item, QImage& image, RenderOp op)
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}
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}
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Phase::AnimId Phase::startElementAnimation(QGraphicsItem *item, ElementAnimation animation)
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{
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//kDebug() << "startElementAnimation(AnimId " << animation << ")" << endl;
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//TODO: allow the animator to define this?
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QTimeLine::CurveShape curveShape = QTimeLine::EaseInOutCurve;
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ElementAnimationState state;
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state.item = item;
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state.animation = animation;
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//TODO: variance in times based on the value of animation
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state.frames = d->animator->elementFrameCount(animation) / 3;
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state.currentFrame = 0;
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state.id = ++d->animId;
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if (state.frames < 1) {
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state.frames = 1;
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state.currentFrame = 1;
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state.timeline = 0;
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} else {
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//TODO: variance in times based on the value of animation
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state.timeline = new QTimeLine(200, this);
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state.timeline->setFrameRange(0, state.frames);
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state.timeline->setCurveShape(curveShape);
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connect(state.timeline, SIGNAL(frameChanged(int)), this, SLOT(advanceElementFrame(int)));
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connect(state.timeline, SIGNAL(finished()), this, SLOT(elementAnimationComplete()));
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state.timeline->start();
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}
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d->elementAnimations[state.timeline] = state.id;
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d->theAnimatedElements[state.id] = state;
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//TODO: this is a bit wasteful; perhaps we should pass in state itself?
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advanceElementFrame(0, state.id);
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//kDebug() << "startElementAnimation(AnimId " << animation << ") returning " << state.id << endl;
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return state.id;
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}
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void Phase::stopElementAnimation(AnimId id)
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{
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//kDebug() << "stopElementAnimation(AnimId " << id << ")" << endl;
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QMap<AnimId, ElementAnimationState>::iterator it = d->theAnimatedElements.find(id);
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if (it == d->theAnimatedElements.end()) {
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return;
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}
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if (it.value().timeline) {
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d->elementAnimations.erase(d->elementAnimations.find(it.value().timeline));
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//delete it.value().timeline;
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it.value().timeline = 0;
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}
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d->theAnimatedElements.erase(it);
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//kDebug() << "stopElementAnimation(AnimId " << id << ") done" << endl;
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}
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void Phase::setAnimationPixmap(AnimId id, const QPixmap &pixmap)
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{
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QMap<AnimId, ElementAnimationState>::iterator it = d->theAnimatedElements.find(id);
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if (it == d->theAnimatedElements.end()) {
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kDebug() << "Phase::setAnimationPixmap(" << id << ") found no entry for it!" << endl;
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return;
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}
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it.value().pixmap = pixmap;
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}
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QPixmap Phase::animationResult(AnimId id)
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{
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QMap<AnimId, ElementAnimationState>::const_iterator it = d->theAnimatedElements.find(id);
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if (it == d->theAnimatedElements.constEnd()) {
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kDebug() << "Phase::animationResult(" << id << ") found no entry for it!" << endl;
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return QPixmap();
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}
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qreal progress = it.value().frames;
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//kDebug() << "Phase::animationResult(" << id << " at " << progress << endl;
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progress = it.value().currentFrame / progress;
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//kDebug() << "Phase::animationResult(" << id << " at " << progress << endl;
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switch (it.value().animation) {
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case ElementAppear:
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return d->animator->elementAppear(progress, it.value().pixmap);
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break;
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case ElementDisappear:
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return d->animator->elementDisappear(progress, it.value().pixmap);
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break;
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}
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return it.value().pixmap;
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}
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void Phase::advanceElementFrame(int frame)
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{
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QTimeLine* timeline = dynamic_cast<QTimeLine*>(sender());
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if (!timeline) {
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kDebug() << "Phase::advanceElementFrame found no timeLine!" << endl;
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return;
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}
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QMap<QTimeLine*, Phase::AnimId>::const_iterator it = d->elementAnimations.find(timeline);
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if (it == d->elementAnimations.constEnd()) {
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kDebug() << "Phase::advanceElementFrame found no entry in animations!" << endl;
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return;
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}
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advanceElementFrame(frame, it.value());
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}
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void Phase::advanceElementFrame(int frame, AnimId id)
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{
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QMap<Phase::AnimId, ElementAnimationState>::iterator it2 = d->theAnimatedElements.find(id);
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if (it2 == d->theAnimatedElements.end()) {
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kDebug() << "Phase::advanceElementFrame found no entry in animations!" << endl;
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return;
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}
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it2.value().currentFrame = frame;
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it2.value().item->update();
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}
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void Phase::elementAnimationComplete()
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{
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QTimeLine* tl = dynamic_cast<QTimeLine*>(sender());
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if (!tl) {
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return;
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}
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QMap<QTimeLine*, Phase::AnimId>::iterator it = d->elementAnimations.find(tl);
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if (it == d->elementAnimations.end()) {
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return;
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}
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//kDebug() << "elementAnimationComplete() " << it.value() << endl;
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QMap<Phase::AnimId, ElementAnimationState>::iterator it2 = d->theAnimatedElements.find(it.value());
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if (it2 != d->theAnimatedElements.end()) {
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it2.value().timeline = 0;
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it2.value().currentFrame = it2.value().frames;
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it2.value().item->update();
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}
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d->elementAnimations.erase(it);
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tl->deleteLater();
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}
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void Phase::init()
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{
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KConfig c("plasmarc");
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20
phase.h
20
phase.h
@ -46,11 +46,19 @@ public:
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FrameAppear /*<< Make a frame appear around an object */
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};
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enum ElementAnimation
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{
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ElementAppear = 0,
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ElementDisappear
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};
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enum RenderOp
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{
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RenderBackground = 0 /*<< Render the background of an item */
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};
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typedef int AnimId;
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/**
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* Singleton accessor
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**/
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@ -59,6 +67,11 @@ public:
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explicit Phase(QObject * parent = 0);
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~Phase();
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AnimId startElementAnimation(QGraphicsItem *obj, ElementAnimation);
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void stopElementAnimation(AnimId id);
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void setAnimationPixmap(AnimId id, const QPixmap &pixmap);
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QPixmap animationResult(AnimId id);
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Q_SIGNALS:
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void animationComplete(QGraphicsItem *item, Animation anim);
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@ -70,6 +83,8 @@ protected Q_SLOTS:
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void appletDestroyed(QObject*);
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void advanceFrame(int frame, QTimeLine* timeLine);
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void advanceElementFrame(int frame);
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void advanceElementFrame(int frame, AnimId id);
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/**
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* NEVER call this method directly, as it relies on sender()
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@ -81,6 +96,11 @@ protected Q_SLOTS:
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*/
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void animationComplete();
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/**
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* NEVER call this method directly, as it relies on sender()
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*/
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void elementAnimationComplete();
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private:
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void init();
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