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());
139 int Transition::transitionEndTrack() const
141 return m_transitionTrack;
144 void Transition::updateTransitionEndTrack(int newtrack)
146 if (!m_forceTransitionTrack) m_transitionTrack = newtrack;
149 void Transition::setForcedTrack(bool force, int track)
151 m_forceTransitionTrack = force;
152 m_transitionTrack = track;
155 bool Transition::forcedTrack() const
157 return m_forceTransitionTrack;
160 void Transition::paint(QPainter *painter,
161 const QStyleOptionGraphicsItem *option,
164 const QRectF exposed = painter->worldTransform().mapRect(option->exposedRect);
165 const QRectF br = rect();
167 framePen.setWidthF(1.2);
168 const QRectF mapped = painter->worldTransform().mapRect(br);
170 QPointF p1(br.x(), br.y() + br.height() / 2 - 7);
171 painter->setWorldMatrixEnabled(false);
176 q.addRoundedRect(mapped, 3, 3);
177 painter->setClipPath(p.intersected(q));
178 painter->fillRect(exposed, brush());
179 const QString text = m_name + (m_forceTransitionTrack ? "|>" : QString());
182 if (isSelected() || (parentItem() && parentItem()->isSelected())) {
183 framePen.setColor(scene()->palette().highlight().color());
184 framePen.setColor(Qt::red);
187 framePen.setColor(brush().color().darker());
190 const QRectF txtBounding = painter->boundingRect(mapped, Qt::AlignHCenter | Qt::AlignVCenter, ' ' + text + ' ');
191 painter->setBrush(framePen.color());
192 painter->setPen(framePen.color());
193 painter->drawRoundedRect(txtBounding, 3, 3);
194 painter->setBrush(QBrush(Qt::NoBrush));
196 painter->setPen(Qt::white);
197 painter->drawText(txtBounding, Qt::AlignCenter, text);
200 painter->setPen(framePen);
201 painter->setClipping(false);
202 painter->setRenderHint(QPainter::Antialiasing, true);
203 painter->drawRoundedRect(mapped.adjusted(0, 0, -0.5, -0.5), 3, 3);
206 int Transition::type() const
208 return TRANSITIONWIDGET;
212 QVariant Transition::itemChange(GraphicsItemChange change, const QVariant &value)
214 if (change == QGraphicsItem::ItemSelectedChange) {
215 if (value.toBool()) setZValue(10);
218 if (change == ItemPositionChange && scene()) {
219 // calculate new position.
220 QPointF newPos = value.toPointF();
221 int xpos = projectScene()->getSnapPointForPos((int) newPos.x(), KdenliveSettings::snaptopoints());
222 xpos = qMax(xpos, 0);
224 int newTrack = newPos.y() / KdenliveSettings::trackheight();
225 newTrack = qMin(newTrack, projectScene()->tracksCount() - 1);
226 newTrack = qMax(newTrack, 0);
227 QStringList lockedTracks = property("locked_tracks").toStringList();
228 if (lockedTracks.contains(QString::number(newTrack))) {
229 // Trying to move to a locked track
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);
338 const ClipItem *Transition::referencedClip() const
340 return m_referenceClip;
343 QDomElement Transition::toXML()
345 m_parameters.setAttribute("type", transitionTag());
346 //m_transitionParameters.setAttribute("inverted", invertTransition());
347 m_parameters.setAttribute("transition_atrack", track());
348 m_parameters.setAttribute("transition_btrack", m_transitionTrack);
349 m_parameters.setAttribute("start", startPos().frames(m_fps));
350 m_parameters.setAttribute("end", endPos().frames(m_fps));
351 m_parameters.setAttribute("force_track", m_forceTransitionTrack);
352 m_parameters.setAttribute("automatic", m_automaticTransition);
355 m_parameters.setAttribute("clipb_starttime", m_secondClip->startPos().frames(m_referenceClip->fps()));
356 m_parameters.setAttribute("clipb_track", transitionEndTrack());
358 return m_parameters.cloneNode().toElement();
361 bool Transition::hasGeometry()
363 QDomNodeList namenode = m_parameters.elementsByTagName("parameter");
364 for (int i = 0; i < namenode.count() ; i++) {
365 QDomElement pa = namenode.item(i).toElement();
366 if (pa.attribute("type") == "geometry") return true;
371 int Transition::defaultZValue() const
376 bool Transition::updateKeyframes()
380 bool modified = false;
381 QDomNodeList namenode = m_parameters.elementsByTagName("parameter");
382 for (int i = 0; i < namenode.count() ; i++) {
383 pa = namenode.item(i).toElement();
384 if (pa.attribute("type") == "geometry") {
385 keyframes = pa.attribute("value");
389 if (keyframes.isEmpty()) return false;
390 int duration = cropDuration().frames(m_fps) - 1;
391 QStringList values = keyframes.split(';');
394 foreach(const QString &pos, values) {
395 if (!pos.contains('=')) {
399 frame = pos.section('=', 0, 0).toInt();
400 if (frame > duration) {
408 // Check if there is a keyframe at transition end
409 QString prev = values.at(i-1);
411 if (prev.contains('=')) {
412 int previousKeyframe = prev.section('=', 0, 0).toInt();
413 if (previousKeyframe == duration) {
414 // Remove the last keyframes
415 while (values.count() > i) {
422 // Add new keyframe at end and remove last keyframes
423 QString last = values.at(i);
424 last = QString::number(duration) + '=' + last.section('=', 1);
426 while (values.count() > (i + 1)) {
431 pa.setAttribute("value", values.join(";"));