1 /***************************************************************************
2 transition.cpp - description
4 begin : Tue Jan 24 2006
5 copyright : (C) 2006 by Jean-Baptiste Mardelle
7 ***************************************************************************/
9 /***************************************************************************
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
16 ***************************************************************************/
18 #include "transition.h"
20 #include "kdenlivesettings.h"
21 #include "customtrackscene.h"
22 #include "mainwindow.h"
29 #include <QDomElement>
31 #include <QStyleOptionGraphicsItem>
32 #if QT_VERSION >= 0x040600
33 #include <QPropertyAnimation>
36 Transition::Transition(const ItemInfo &info, int transitiontrack, double fps, QDomElement params, bool automaticTransition) :
37 AbstractClipItem(info, QRectF(), fps),
38 m_forceTransitionTrack(false),
39 m_automaticTransition(automaticTransition),
41 m_transitionTrack(transitiontrack)
44 m_info.cropDuration = info.endPos - info.startPos;
45 setPos(info.startPos.frames(fps), (int)(info.track * KdenliveSettings::trackheight() + itemOffset() + 1));
47 #if QT_VERSION >= 0x040600
48 if (!(KGlobalSettings::graphicEffectsLevel() & KGlobalSettings::SimpleAnimationEffects)) {
50 setRect(0, 0, m_info.cropDuration.frames(fps) - 0.02, (qreal) itemHeight());
53 QPropertyAnimation *startAnimation = new QPropertyAnimation(this, "rect");
54 startAnimation->setDuration(200);
55 const QRectF r(0, 0, m_info.cropDuration.frames(fps) - 0.02, (qreal) itemHeight() / 2);
56 const QRectF r2(0, 0, m_info.cropDuration.frames(fps) - 0.02, (qreal)itemHeight());
57 startAnimation->setStartValue(r);
58 startAnimation->setEndValue(r2);
59 startAnimation->setEasingCurve(QEasingCurve::OutQuad);
60 startAnimation->start(QAbstractAnimation::DeleteWhenStopped);
63 setRect(0, 0, m_info.cropDuration.frames(fps) - 0.02, (qreal) itemHeight());
66 m_info.cropStart = GenTime();
67 m_maxDuration = GenTime(600);
69 if (m_automaticTransition) setBrush(QColor(200, 200, 50, 180));
70 else setBrush(QColor(200, 100, 50, 180));
72 //m_referenceClip = clipa;
73 if (params.isNull()) {
74 m_parameters = MainWindow::transitions.getEffectByTag("luma", "dissolve").cloneNode().toElement();
76 m_parameters = params;
78 if (m_automaticTransition) m_parameters.setAttribute("automatic", 1);
79 else if (m_parameters.attribute("automatic") == "1") m_automaticTransition = true;
80 if (m_parameters.attribute("force_track") == "1") m_forceTransitionTrack = true;
81 m_name = i18n(m_parameters.firstChildElement("name").text().toUtf8().data());
84 //m_referenceClip->addTransition(this);
87 Transition::~Transition()
90 if (scene()) scene()->removeItem(this);
93 Transition *Transition::clone()
95 QDomElement xml = toXML().cloneNode().toElement();
96 Transition *tr = new Transition(info(), transitionEndTrack(), m_fps, xml);
100 QString Transition::transitionTag() const
102 return m_parameters.attribute("tag");
105 QStringList Transition::transitionInfo() const
108 info << m_name << m_parameters.attribute("tag") << m_parameters.attribute("id");
112 bool Transition::isAutomatic() const
114 return m_automaticTransition;
117 void Transition::setAutomatic(bool automatic)
119 m_automaticTransition = automatic;
121 m_parameters.setAttribute("automatic", 1);
122 setBrush(QColor(200, 200, 50, 180));
124 m_parameters.removeAttribute("automatic");
125 setBrush(QColor(200, 100, 50, 180));
130 void Transition::setTransitionParameters(const QDomElement params)
132 m_parameters = params;
133 if (m_parameters.attribute("force_track") == "1") setForcedTrack(true, m_parameters.attribute("transition_btrack").toInt());
134 else if (m_parameters.attribute("force_track") == "0") setForcedTrack(false, m_parameters.attribute("transition_btrack").toInt());
135 m_name = i18n(m_parameters.firstChildElement("name").text().toUtf8().data());
140 bool Transition::invertedTransition() const
142 return false; //m_parameters.attribute("reverse").toInt();
145 void Transition::setTransitionDirection(bool /*inv*/)
147 //m_parameters.setAttribute("reverse", inv);
150 int Transition::transitionEndTrack() const
152 return m_transitionTrack;
155 void Transition::updateTransitionEndTrack(int newtrack)
157 if (!m_forceTransitionTrack) m_transitionTrack = newtrack;
160 void Transition::setForcedTrack(bool force, int track)
162 m_forceTransitionTrack = force;
163 m_transitionTrack = track;
166 bool Transition::forcedTrack() const
168 return m_forceTransitionTrack;
171 void Transition::paint(QPainter *painter,
172 const QStyleOptionGraphicsItem *option,
175 const QRectF exposed = option->exposedRect;
176 painter->setClipRect(exposed);
177 const QRectF br = rect();
179 const QRectF mapped = painter->worldTransform().mapRect(br);
181 painter->fillRect(exposed, brush());
183 QPointF p1(br.x(), br.y() + br.height() / 2 - 7);
184 painter->setWorldMatrixEnabled(false);
185 const QString text = m_name + (m_forceTransitionTrack ? "|>" : QString());
188 if (isSelected() || (parentItem() && parentItem()->isSelected())) {
189 framePen.setColor(Qt::red);
190 framePen.setWidthF(2.0);
193 framePen.setColor(brush().color().darker());
196 const QRectF txtBounding = painter->boundingRect(mapped, Qt::AlignHCenter | Qt::AlignVCenter, ' ' + text + ' ');
197 painter->setBrush(framePen.color());
198 painter->setPen(Qt::NoPen);
199 painter->drawRoundedRect(txtBounding, 3, 3);
200 painter->setBrush(QBrush(Qt::NoBrush));
202 painter->setPen(Qt::white);
203 painter->drawText(txtBounding, Qt::AlignCenter, text);
206 painter->setPen(framePen);
207 painter->setClipping(false);
208 painter->drawRect(mapped.adjusted(0, 0, -0.5, -0.5));
211 int Transition::type() const
213 return TRANSITIONWIDGET;
217 QVariant Transition::itemChange(GraphicsItemChange change, const QVariant &value)
219 if (change == QGraphicsItem::ItemSelectedChange) {
220 if (value.toBool()) setZValue(10);
223 if (change == ItemPositionChange && scene()) {
224 // calculate new position.
225 QPointF newPos = value.toPointF();
226 int xpos = projectScene()->getSnapPointForPos((int) newPos.x(), KdenliveSettings::snaptopoints());
227 xpos = qMax(xpos, 0);
229 int newTrack = newPos.y() / KdenliveSettings::trackheight();
230 newTrack = qMin(newTrack, projectScene()->tracksCount() - 1);
231 newTrack = qMax(newTrack, 0);
232 newPos.setY((int)(newTrack * KdenliveSettings::trackheight() + itemOffset() + 1));
233 // Only one clip is moving
234 QRectF sceneShape = rect();
235 sceneShape.translate(newPos);
236 QList<QGraphicsItem*> items;
237 // TODO: manage transitions in OVERWRITE MODE
238 //if (projectScene()->editMode() == NORMALEDIT)
239 items = scene()->items(sceneShape, Qt::IntersectsItemShape);
240 items.removeAll(this);
242 bool forwardMove = newPos.x() > pos().x();
244 if (!items.isEmpty()) {
245 for (int i = 0; i < items.count(); i++) {
246 if (!items.at(i)->isEnabled()) continue;
247 if (items.at(i)->type() == type()) {
249 QPointF otherPos = items.at(i)->pos();
250 if ((int) otherPos.y() != (int) pos().y()) {
254 offset = qMax(offset, (int)(newPos.x() - (static_cast < AbstractClipItem* >(items.at(i))->startPos() - cropDuration()).frames(m_fps)));
256 offset = qMax(offset, (int)((static_cast < AbstractClipItem* >(items.at(i))->endPos().frames(m_fps)) - newPos.x()));
261 sceneShape.translate(QPointF(-offset, 0));
262 newPos.setX(newPos.x() - offset);
264 sceneShape.translate(QPointF(offset, 0));
265 newPos.setX(newPos.x() + offset);
267 QList<QGraphicsItem*> subitems = scene()->items(sceneShape, Qt::IntersectsItemShape);
268 subitems.removeAll(this);
269 for (int j = 0; j < subitems.count(); j++) {
270 if (!subitems.at(j)->isEnabled()) continue;
271 if (subitems.at(j)->type() == type()) {
272 // move was not successful, revert to previous pos
273 m_info.startPos = GenTime((int) pos().x(), m_fps);
279 m_info.track = newTrack;
280 m_info.startPos = GenTime((int) newPos.x(), m_fps);
287 m_info.track = newTrack;
288 m_info.startPos = GenTime((int) newPos.x(), m_fps);
289 //kDebug()<<"// ITEM NEW POS: "<<newPos.x()<<", mapped: "<<mapToScene(newPos.x(), 0).x();
292 return QGraphicsItem::itemChange(change, value);
296 OPERATIONTYPE Transition::operationMode(QPointF pos)
298 if (isItemLocked()) return NONE;
300 const double scale = projectScene()->scale().x();
301 double maximumOffset = 6 / scale;
303 QRectF rect = sceneBoundingRect();
304 if (qAbs((int)(pos.x() - rect.x())) < maximumOffset) return RESIZESTART;
305 else if (qAbs((int)(pos.x() - (rect.right()))) < maximumOffset) return RESIZEEND;
310 int Transition::itemHeight()
312 return (int) (KdenliveSettings::trackheight() / 3 * 2 - 1);
316 int Transition::itemOffset()
318 return (int) (KdenliveSettings::trackheight() / 3 * 2);
321 bool Transition::hasClip(const ClipItem * clip) const
323 if (clip == m_secondClip) return true;
327 bool Transition::belongsToClip(const ClipItem * clip) const
329 if (clip == m_referenceClip) return true;
334 Transition *Transition::clone() {
335 return new Transition::Transition(rect(), m_referenceClip, toXML() , m_fps);
339 Transition *Transition::reparent(ClipItem * clip) {
340 return new Transition::Transition(rect(), clip, toXML(), m_fps, m_referenceClip->startPos());
343 bool Transition::isValid() const
345 return true; //(m_transitionDuration != GenTime());
348 const ClipItem *Transition::referencedClip() const
350 return m_referenceClip;
353 QDomElement Transition::toXML()
355 m_parameters.setAttribute("type", transitionTag());
356 //m_transitionParameters.setAttribute("inverted", invertTransition());
357 m_parameters.setAttribute("transition_atrack", track());
358 m_parameters.setAttribute("transition_btrack", m_transitionTrack);
359 m_parameters.setAttribute("start", startPos().frames(m_fps));
360 m_parameters.setAttribute("end", endPos().frames(m_fps));
361 m_parameters.setAttribute("force_track", m_forceTransitionTrack);
362 m_parameters.setAttribute("automatic", m_automaticTransition);
365 m_parameters.setAttribute("clipb_starttime", m_secondClip->startPos().frames(m_referenceClip->fps()));
366 m_parameters.setAttribute("clipb_track", transitionEndTrack());
368 return m_parameters.cloneNode().toElement();
371 bool Transition::hasGeometry()
373 QDomNodeList namenode = m_parameters.elementsByTagName("parameter");
374 for (int i = 0; i < namenode.count() ; i++) {
375 QDomElement pa = namenode.item(i).toElement();
376 if (pa.attribute("type") == "geometry") return true;
381 int Transition::defaultZValue() const
386 bool Transition::updateKeyframes()
390 bool modified = false;
391 QDomNodeList namenode = m_parameters.elementsByTagName("parameter");
392 for (int i = 0; i < namenode.count() ; i++) {
393 pa = namenode.item(i).toElement();
394 if (pa.attribute("type") == "geometry") {
395 keyframes = pa.attribute("value");
399 if (keyframes.isEmpty()) return false;
400 int duration = cropDuration().frames(m_fps) - 1;
401 QStringList values = keyframes.split(";");
404 foreach(const QString &pos, values) {
405 if (!pos.contains('=')) {
409 frame = pos.section('=', 0, 0).toInt();
410 if (frame > duration) {
418 // Check if there is a keyframe at transition end
419 QString prev = values.at(i-1);
421 if (prev.contains('=')) {
422 int previousKeyframe = prev.section('=', 0, 0).toInt();
423 if (previousKeyframe == duration) {
424 // Remove the last keyframes
425 while (values.count() > i) {
432 // Add new keyframe at end and remove last keyframes
433 QString last = values.at(i);
434 last = QString::number(duration) + '=' + last.section('=', 1);
436 while (values.count() > (i + 1)) {
441 pa.setAttribute("value", values.join(";"));