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 setRect(0, 0, m_info.cropDuration.frames(fps) - 0.02, (qreal)(KdenliveSettings::trackheight() / 3 * 2 - 1));
44 setPos(info.startPos.frames(fps), (qreal)(info.track * KdenliveSettings::trackheight() + KdenliveSettings::trackheight() / 3 * 2));
46 m_info.cropStart = GenTime();
47 m_maxDuration = GenTime(600);
49 if (m_automaticTransition) setBrush(QColor(200, 200, 50, 100));
50 else setBrush(QColor(200, 100, 50, 100));
52 //m_referenceClip = clipa;
53 if (params.isNull()) {
54 m_parameters = MainWindow::transitions.getEffectByTag("luma", "dissolve").cloneNode().toElement();
56 m_parameters = params;
58 if (m_automaticTransition) m_parameters.setAttribute("automatic", 1);
59 else if (m_parameters.attribute("automatic") == "1") m_automaticTransition = true;
60 if (m_parameters.attribute("force_track") == "1") m_forceTransitionTrack = true;
61 m_name = m_parameters.elementsByTagName("name").item(0).toElement().text();
64 //m_referenceClip->addTransition(this);
67 Transition::~Transition()
71 Transition *Transition::clone()
73 QDomElement xml = toXML().cloneNode().toElement();
74 Transition *tr = new Transition(info(), transitionEndTrack(), m_fps, xml);
78 QString Transition::transitionName() const
83 QString Transition::transitionTag() const
85 return m_parameters.attribute("tag");
88 bool Transition::isAutomatic() const
90 return m_automaticTransition;
93 void Transition::setAutomatic(bool automatic)
95 m_automaticTransition = automatic;
97 m_parameters.setAttribute("automatic", 1);
98 setBrush(QColor(200, 200, 50, 150));
100 m_parameters.removeAttribute("automatic");
101 setBrush(QColor(200, 50, 50, 150));
106 void Transition::setTransitionParameters(const QDomElement params)
108 m_parameters = params;
109 if (m_parameters.attribute("force_track") == "1") setForcedTrack(true, m_parameters.attribute("transition_btrack").toInt());
110 else if (m_parameters.attribute("force_track") == "0") setForcedTrack(false, m_parameters.attribute("transition_btrack").toInt());
111 m_name = m_parameters.elementsByTagName("name").item(0).toElement().text();
116 bool Transition::invertedTransition() const
118 return false; //m_parameters.attribute("reverse").toInt();
121 void Transition::setTransitionDirection(bool /*inv*/)
123 //m_parameters.setAttribute("reverse", inv);
126 int Transition::transitionEndTrack() const
128 return m_transitionTrack;
131 void Transition::updateTransitionEndTrack(int newtrack)
133 if (!m_forceTransitionTrack) m_transitionTrack = newtrack;
136 void Transition::setForcedTrack(bool force, int track)
138 m_forceTransitionTrack = force;
139 m_transitionTrack = track;
142 bool Transition::forcedTrack() const
144 return m_forceTransitionTrack;
147 void Transition::paint(QPainter *painter,
148 const QStyleOptionGraphicsItem *option,
151 const QRectF exposed = option->exposedRect;
152 painter->setClipRect(exposed);
153 const QRectF br = rect();
154 const QRectF mapped = painter->matrix().mapRect(br);
156 painter->fillRect(exposed, brush());
158 //int top = (int)(br.y() + br.height() / 2 - 7);
159 QPointF p1(br.x(), br.y() + br.height() / 2 - 7);
160 painter->setMatrixEnabled(false);
161 //painter->drawPixmap(painter->matrix().map(p1) + QPointF(5, 0), transitionPixmap());
162 const QString text = m_name + (m_forceTransitionTrack ? "|>" : QString());
165 QColor frameColor(brush().color().darker());
166 if (isSelected() || (parentItem() && parentItem()->isSelected())) {
167 frameColor = QColor(Qt::red);
169 frameColor.setAlpha(160);
171 const QRectF txtBounding = painter->boundingRect(mapped, Qt::AlignHCenter | Qt::AlignVCenter, ' ' + text + ' ');
172 //painter->fillRect(txtBounding2, frameColor);
173 painter->setBrush(frameColor);
174 painter->setPen(Qt::NoPen);
175 painter->drawRoundedRect(txtBounding, 3, 3);
176 painter->setBrush(QBrush(Qt::NoBrush));
178 painter->setPen(Qt::white);
179 painter->drawText(txtBounding, Qt::AlignCenter, text);
182 QPen pen = painter->pen();
183 pen.setColor(frameColor);
184 painter->setPen(pen);
185 painter->setClipping(false);
186 painter->drawRect(painter->matrix().mapRect(rect()));
189 int Transition::type() const
191 return TRANSITIONWIDGET;
195 QVariant Transition::itemChange(GraphicsItemChange change, const QVariant &value)
197 if (change == ItemPositionChange && scene()) {
198 // calculate new position.
199 QPointF newPos = value.toPointF();
200 int xpos = projectScene()->getSnapPointForPos((int) newPos.x(), KdenliveSettings::snaptopoints());
201 xpos = qMax(xpos, 0);
203 int newTrack = newPos.y() / KdenliveSettings::trackheight();
204 newTrack = qMin(newTrack, projectScene()->tracksCount() - 1);
205 newTrack = qMax(newTrack, 0);
206 newPos.setY((int)(newTrack * KdenliveSettings::trackheight() + KdenliveSettings::trackheight() / 3 * 2));
207 // Only one clip is moving
208 QRectF sceneShape = rect();
209 sceneShape.translate(newPos);
210 QList<QGraphicsItem*> items = scene()->items(sceneShape, Qt::IntersectsItemShape);
211 items.removeAll(this);
213 if (!items.isEmpty()) {
214 for (int i = 0; i < items.count(); i++) {
215 if (items.at(i)->type() == type()) {
216 // Collision! Don't move.
217 //kDebug()<<"/// COLLISION WITH ITEM: "<<items.at(i)->boundingRect()<<", POS: "<<items.at(i)->pos()<<", ME: "<<newPos;
218 QPointF otherPos = items.at(i)->pos();
219 if ((int) otherPos.y() != (int) pos().y()) return pos();
220 //kDebug()<<"//// CURRENT Y: "<<pos().y()<<", COLLIDING Y: "<<otherPos.y();
221 if (pos().x() < otherPos.x()) {
222 int npos = (static_cast < AbstractClipItem* >(items.at(i))->startPos() - m_info.cropDuration).frames(m_fps);
225 // get pos just after colliding clip
226 int npos = static_cast < AbstractClipItem* >(items.at(i))->endPos().frames(m_fps);
229 m_info.track = newTrack;
230 //kDebug()<<"// ITEM NEW POS: "<<newPos.x()<<", mapped: "<<mapToScene(newPos.x(), 0).x();
231 m_info.startPos = GenTime((int) newPos.x(), m_fps);
236 m_info.track = newTrack;
237 m_info.startPos = GenTime((int) newPos.x(), m_fps);
238 //kDebug()<<"// ITEM NEW POS: "<<newPos.x()<<", mapped: "<<mapToScene(newPos.x(), 0).x();
241 return QGraphicsItem::itemChange(change, value);
245 OPERATIONTYPE Transition::operationMode(QPointF pos)
247 if (isItemLocked()) return NONE;
249 const double scale = projectScene()->scale().x();
250 double maximumOffset = 6 / scale;
252 QRectF rect = sceneBoundingRect();
253 if (qAbs((int)(pos.x() - rect.x())) < maximumOffset) return RESIZESTART;
254 else if (qAbs((int)(pos.x() - (rect.right()))) < maximumOffset) return RESIZEEND;
258 bool Transition::hasClip(const ClipItem * clip) const
260 if (clip == m_secondClip) return true;
264 bool Transition::belongsToClip(const ClipItem * clip) const
266 if (clip == m_referenceClip) return true;
271 Transition *Transition::clone() {
272 return new Transition::Transition(rect(), m_referenceClip, toXML() , m_fps);
276 Transition *Transition::reparent(ClipItem * clip) {
277 return new Transition::Transition(rect(), clip, toXML(), m_fps, m_referenceClip->startPos());
280 bool Transition::isValid() const
282 return true; //(m_transitionDuration != GenTime());
285 const ClipItem *Transition::referencedClip() const
287 return m_referenceClip;
290 QDomElement Transition::toXML()
292 m_parameters.setAttribute("type", transitionTag());
293 //m_transitionParameters.setAttribute("inverted", invertTransition());
294 m_parameters.setAttribute("transition_atrack", track());
295 m_parameters.setAttribute("transition_btrack", m_transitionTrack);
296 m_parameters.setAttribute("start", startPos().frames(m_fps));
297 m_parameters.setAttribute("end", endPos().frames(m_fps));
298 m_parameters.setAttribute("force_track", m_forceTransitionTrack);
301 m_parameters.setAttribute("clipb_starttime", m_secondClip->startPos().frames(m_referenceClip->fps()));
302 m_parameters.setAttribute("clipb_track", transitionEndTrack());
304 return m_parameters.cloneNode().toElement();
307 bool Transition::hasGeometry()
309 QDomNodeList namenode = m_parameters.elementsByTagName("parameter");
310 for (int i = 0; i < namenode.count() ; i++) {
311 QDomElement pa = namenode.item(i).toElement();
312 if (pa.attribute("type") == "geometry") return true;