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>
34 Transition::Transition(const ItemInfo &info, int transitiontrack, double fps, QDomElement params, bool automaticTransition) :
35 AbstractClipItem(info, QRectF(), fps),
36 m_forceTransitionTrack(false),
37 m_automaticTransition(automaticTransition),
39 m_transitionTrack(transitiontrack)
42 m_info.cropDuration = info.endPos - info.startPos;
43 setPos(info.startPos.frames(fps), (int)(info.track * KdenliveSettings::trackheight() + itemOffset() + 1));
45 #if QT_VERSION >= 0x040600
46 QPropertyAnimation *startAnimation = new QPropertyAnimation(this, "rect", this);
47 startAnimation->setDuration(200);
48 QRectF r(0, 0, m_info.cropDuration.frames(fps) - 0.02, (qreal) itemHeight() / 2);
49 QRectF r2(0, 0, m_info.cropDuration.frames(fps) - 0.02, (qreal)itemHeight());
50 startAnimation->setStartValue(r);
51 startAnimation->setEndValue(r2);
52 startAnimation->setEasingCurve(QEasingCurve::OutQuad);
53 startAnimation->start(QAbstractAnimation::DeleteWhenStopped);
55 setRect(0, 0, m_info.cropDuration.frames(fps) - 0.02, (qreal) itemHeight());
58 m_info.cropStart = GenTime();
59 m_maxDuration = GenTime(600);
61 if (m_automaticTransition) setBrush(QColor(200, 200, 50, 180));
62 else setBrush(QColor(200, 100, 50, 180));
64 //m_referenceClip = clipa;
65 if (params.isNull()) {
66 m_parameters = MainWindow::transitions.getEffectByTag("luma", "dissolve").cloneNode().toElement();
68 m_parameters = params;
70 if (m_automaticTransition) m_parameters.setAttribute("automatic", 1);
71 else if (m_parameters.attribute("automatic") == "1") m_automaticTransition = true;
72 if (m_parameters.attribute("force_track") == "1") m_forceTransitionTrack = true;
73 m_name = i18n(m_parameters.firstChildElement("name").text().toUtf8().data());
76 //m_referenceClip->addTransition(this);
79 Transition::~Transition()
82 if (scene()) scene()->removeItem(this);
85 Transition *Transition::clone()
87 QDomElement xml = toXML().cloneNode().toElement();
88 Transition *tr = new Transition(info(), transitionEndTrack(), m_fps, xml);
92 QString Transition::transitionTag() const
94 return m_parameters.attribute("tag");
97 QStringList Transition::transitionInfo() const
100 info << m_name << m_parameters.attribute("tag") << m_parameters.attribute("id");
104 bool Transition::isAutomatic() const
106 return m_automaticTransition;
109 void Transition::setAutomatic(bool automatic)
111 m_automaticTransition = automatic;
113 m_parameters.setAttribute("automatic", 1);
114 setBrush(QColor(200, 200, 50, 180));
116 m_parameters.removeAttribute("automatic");
117 setBrush(QColor(200, 100, 50, 180));
122 void Transition::setTransitionParameters(const QDomElement params)
124 m_parameters = params;
125 if (m_parameters.attribute("force_track") == "1") setForcedTrack(true, m_parameters.attribute("transition_btrack").toInt());
126 else if (m_parameters.attribute("force_track") == "0") setForcedTrack(false, m_parameters.attribute("transition_btrack").toInt());
127 m_name = i18n(m_parameters.firstChildElement("name").text().toUtf8().data());
132 bool Transition::invertedTransition() const
134 return false; //m_parameters.attribute("reverse").toInt();
137 void Transition::setTransitionDirection(bool /*inv*/)
139 //m_parameters.setAttribute("reverse", inv);
142 int Transition::transitionEndTrack() const
144 return m_transitionTrack;
147 void Transition::updateTransitionEndTrack(int newtrack)
149 if (!m_forceTransitionTrack) m_transitionTrack = newtrack;
152 void Transition::setForcedTrack(bool force, int track)
154 m_forceTransitionTrack = force;
155 m_transitionTrack = track;
158 bool Transition::forcedTrack() const
160 return m_forceTransitionTrack;
163 void Transition::paint(QPainter *painter,
164 const QStyleOptionGraphicsItem *option,
167 const QRectF exposed = option->exposedRect;
168 painter->setClipRect(exposed);
169 const QRectF br = rect();
171 const QRectF mapped = painter->worldTransform().mapRect(br);
173 painter->fillRect(exposed, brush());
175 QPointF p1(br.x(), br.y() + br.height() / 2 - 7);
176 painter->setWorldMatrixEnabled(false);
177 const QString text = m_name + (m_forceTransitionTrack ? "|>" : QString());
180 if (isSelected() || (parentItem() && parentItem()->isSelected())) {
181 framePen.setColor(Qt::red);
182 framePen.setWidthF(2.0);
185 framePen.setColor(brush().color().darker());
188 const QRectF txtBounding = painter->boundingRect(mapped, Qt::AlignHCenter | Qt::AlignVCenter, ' ' + text + ' ');
189 painter->setBrush(framePen.color());
190 painter->setPen(Qt::NoPen);
191 painter->drawRoundedRect(txtBounding, 3, 3);
192 painter->setBrush(QBrush(Qt::NoBrush));
194 painter->setPen(Qt::white);
195 painter->drawText(txtBounding, Qt::AlignCenter, text);
198 painter->setPen(framePen);
199 painter->setClipping(false);
200 painter->drawRect(mapped.adjusted(0, 0, -0.5, -0.5));
203 int Transition::type() const
205 return TRANSITIONWIDGET;
209 QVariant Transition::itemChange(GraphicsItemChange change, const QVariant &value)
211 if (change == QGraphicsItem::ItemSelectedChange) {
212 if (value.toBool()) setZValue(10);
215 if (change == ItemPositionChange && scene()) {
216 // calculate new position.
217 QPointF newPos = value.toPointF();
218 int xpos = projectScene()->getSnapPointForPos((int) newPos.x(), KdenliveSettings::snaptopoints());
219 xpos = qMax(xpos, 0);
221 int newTrack = newPos.y() / KdenliveSettings::trackheight();
222 newTrack = qMin(newTrack, projectScene()->tracksCount() - 1);
223 newTrack = qMax(newTrack, 0);
224 newPos.setY((int)(newTrack * KdenliveSettings::trackheight() + itemOffset() + 1));
225 // Only one clip is moving
226 QRectF sceneShape = rect();
227 sceneShape.translate(newPos);
228 QList<QGraphicsItem*> items;
229 // TODO: manage transitions in OVERWRITE MODE
230 //if (projectScene()->editMode() == NORMALEDIT)
231 items = scene()->items(sceneShape, Qt::IntersectsItemShape);
232 items.removeAll(this);
234 bool forwardMove = newPos.x() > pos().x();
236 if (!items.isEmpty()) {
237 for (int i = 0; i < items.count(); i++) {
238 if (!items.at(i)->isEnabled()) continue;
239 if (items.at(i)->type() == type()) {
241 QPointF otherPos = items.at(i)->pos();
242 if ((int) otherPos.y() != (int) pos().y()) {
246 offset = qMax(offset, (int)(newPos.x() - (static_cast < AbstractClipItem* >(items.at(i))->startPos() - cropDuration()).frames(m_fps)));
248 offset = qMax(offset, (int)((static_cast < AbstractClipItem* >(items.at(i))->endPos().frames(m_fps)) - newPos.x()));
253 sceneShape.translate(QPointF(-offset, 0));
254 newPos.setX(newPos.x() - offset);
256 sceneShape.translate(QPointF(offset, 0));
257 newPos.setX(newPos.x() + offset);
259 QList<QGraphicsItem*> subitems = scene()->items(sceneShape, Qt::IntersectsItemShape);
260 subitems.removeAll(this);
261 for (int j = 0; j < subitems.count(); j++) {
262 if (!subitems.at(j)->isEnabled()) continue;
263 if (subitems.at(j)->type() == type()) {
264 // move was not successful, revert to previous pos
265 m_info.startPos = GenTime((int) pos().x(), m_fps);
271 m_info.track = newTrack;
272 m_info.startPos = GenTime((int) newPos.x(), m_fps);
279 m_info.track = newTrack;
280 m_info.startPos = GenTime((int) newPos.x(), m_fps);
281 //kDebug()<<"// ITEM NEW POS: "<<newPos.x()<<", mapped: "<<mapToScene(newPos.x(), 0).x();
284 return QGraphicsItem::itemChange(change, value);
288 OPERATIONTYPE Transition::operationMode(QPointF pos)
290 if (isItemLocked()) return NONE;
292 const double scale = projectScene()->scale().x();
293 double maximumOffset = 6 / scale;
295 QRectF rect = sceneBoundingRect();
296 if (qAbs((int)(pos.x() - rect.x())) < maximumOffset) return RESIZESTART;
297 else if (qAbs((int)(pos.x() - (rect.right()))) < maximumOffset) return RESIZEEND;
301 int Transition::itemHeight()
303 return (int) (KdenliveSettings::trackheight() / 3 * 2 - 1);
306 int Transition::itemOffset()
308 return (int) (KdenliveSettings::trackheight() / 3 * 2);
311 bool Transition::hasClip(const ClipItem * clip) const
313 if (clip == m_secondClip) return true;
317 bool Transition::belongsToClip(const ClipItem * clip) const
319 if (clip == m_referenceClip) return true;
324 Transition *Transition::clone() {
325 return new Transition::Transition(rect(), m_referenceClip, toXML() , m_fps);
329 Transition *Transition::reparent(ClipItem * clip) {
330 return new Transition::Transition(rect(), clip, toXML(), m_fps, m_referenceClip->startPos());
333 bool Transition::isValid() const
335 return true; //(m_transitionDuration != GenTime());
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(";"));