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 setRect(0, 0, (info.endPos - info.startPos).frames(fps) - 0.02, (qreal)(KdenliveSettings::trackheight() / 3 * 2 - 1));
43 setPos(info.startPos.frames(fps), (qreal)(info.track * KdenliveSettings::trackheight() + KdenliveSettings::trackheight() / 3 * 2));
45 m_cropStart = GenTime();
46 m_maxDuration = GenTime(600);
48 if (m_automaticTransition) setBrush(QColor(200, 200, 50, 100));
49 else setBrush(QColor(200, 100, 50, 100));
51 //m_referenceClip = clipa;
52 if (params.isNull()) {
53 m_parameters = MainWindow::transitions.getEffectByTag("luma", "dissolve").cloneNode().toElement();
55 m_parameters = params;
57 if (m_automaticTransition) m_parameters.setAttribute("automatic", 1);
58 else if (m_parameters.attribute("automatic") == "1") m_automaticTransition = true;
59 if (m_parameters.attribute("force_track") == "1") m_forceTransitionTrack = true;
60 m_name = m_parameters.elementsByTagName("name").item(0).toElement().text();
63 //m_referenceClip->addTransition(this);
66 Transition::~Transition()
70 Transition *Transition::clone()
72 QDomElement xml = toXML().cloneNode().toElement();
73 Transition *tr = new Transition(info(), transitionEndTrack(), m_fps, xml);
77 QString Transition::transitionName() const
82 QString Transition::transitionTag() const
84 return m_parameters.attribute("tag");
87 bool Transition::isAutomatic() const
89 return m_automaticTransition;
92 void Transition::setAutomatic(bool automatic)
94 m_automaticTransition = automatic;
96 m_parameters.setAttribute("automatic", 1);
97 setBrush(QColor(200, 200, 50, 150));
99 m_parameters.removeAttribute("automatic");
100 setBrush(QColor(200, 50, 50, 150));
105 void Transition::setTransitionParameters(const QDomElement params)
107 m_parameters = params;
108 if (m_parameters.attribute("force_track") == "1") setForcedTrack(true, m_parameters.attribute("transition_btrack").toInt());
109 else if (m_parameters.attribute("force_track") == "0") setForcedTrack(false, m_parameters.attribute("transition_btrack").toInt());
110 m_name = m_parameters.elementsByTagName("name").item(0).toElement().text();
115 bool Transition::invertedTransition() const
117 return false; //m_parameters.attribute("reverse").toInt();
120 void Transition::setTransitionDirection(bool /*inv*/)
122 //m_parameters.setAttribute("reverse", inv);
125 int Transition::transitionEndTrack() const
127 return m_transitionTrack;
130 void Transition::updateTransitionEndTrack(int newtrack)
132 if (!m_forceTransitionTrack) m_transitionTrack = newtrack;
135 void Transition::setForcedTrack(bool force, int track)
137 m_forceTransitionTrack = force;
138 m_transitionTrack = track;
141 bool Transition::forcedTrack() const
143 return m_forceTransitionTrack;
146 void Transition::paint(QPainter *painter,
147 const QStyleOptionGraphicsItem *option,
150 const QRectF exposed = option->exposedRect;
151 painter->setClipRect(exposed);
152 const QRectF br = rect();
153 const QRectF mapped = painter->matrix().mapRect(br);
155 painter->fillRect(exposed, brush());
157 //int top = (int)(br.y() + br.height() / 2 - 7);
158 QPointF p1(br.x(), br.y() + br.height() / 2 - 7);
159 painter->setMatrixEnabled(false);
160 //painter->drawPixmap(painter->matrix().map(p1) + QPointF(5, 0), transitionPixmap());
161 const QString text = m_name + (m_forceTransitionTrack ? "|>" : QString());
164 QColor frameColor(brush().color().darker());
165 if (isSelected() || (parentItem() && parentItem()->isSelected())) {
166 frameColor = QColor(Qt::red);
168 frameColor.setAlpha(160);
170 const QRectF txtBounding = painter->boundingRect(mapped, Qt::AlignHCenter | Qt::AlignVCenter, ' ' + text + ' ');
171 //painter->fillRect(txtBounding2, frameColor);
172 painter->setBrush(frameColor);
173 painter->setPen(Qt::NoPen);
174 painter->drawRoundedRect(txtBounding, 3, 3);
175 painter->setBrush(QBrush(Qt::NoBrush));
177 painter->setPen(Qt::white);
178 painter->drawText(txtBounding, Qt::AlignCenter, text);
181 QPen pen = painter->pen();
182 pen.setColor(frameColor);
183 painter->setPen(pen);
184 painter->setClipping(false);
185 painter->drawRect(painter->matrix().mapRect(rect()));
188 int Transition::type() const
190 return TRANSITIONWIDGET;
194 QVariant Transition::itemChange(GraphicsItemChange change, const QVariant &value)
196 if (change == ItemPositionChange && scene()) {
197 // calculate new position.
198 QPointF newPos = value.toPointF();
199 int xpos = projectScene()->getSnapPointForPos((int) newPos.x(), KdenliveSettings::snaptopoints());
200 xpos = qMax(xpos, 0);
202 int newTrack = newPos.y() / KdenliveSettings::trackheight();
203 newTrack = qMin(newTrack, projectScene()->tracksCount() - 1);
204 newTrack = qMax(newTrack, 0);
205 newPos.setY((int)(newTrack * KdenliveSettings::trackheight() + KdenliveSettings::trackheight() / 3 * 2));
206 // Only one clip is moving
207 QRectF sceneShape = rect();
208 sceneShape.translate(newPos);
209 QList<QGraphicsItem*> items = scene()->items(sceneShape, Qt::IntersectsItemShape);
210 items.removeAll(this);
212 if (!items.isEmpty()) {
213 for (int i = 0; i < items.count(); i++) {
214 if (items.at(i)->type() == type()) {
215 // Collision! Don't move.
216 //kDebug()<<"/// COLLISION WITH ITEM: "<<items.at(i)->boundingRect()<<", POS: "<<items.at(i)->pos()<<", ME: "<<newPos;
217 QPointF otherPos = items.at(i)->pos();
218 if ((int) otherPos.y() != (int) pos().y()) return pos();
219 //kDebug()<<"//// CURRENT Y: "<<pos().y()<<", COLLIDING Y: "<<otherPos.y();
220 if (pos().x() < otherPos.x()) {
221 int npos = (static_cast < AbstractClipItem* >(items.at(i))->startPos() - m_cropDuration).frames(m_fps);
224 // get pos just after colliding clip
225 int npos = static_cast < AbstractClipItem* >(items.at(i))->endPos().frames(m_fps);
229 //kDebug()<<"// ITEM NEW POS: "<<newPos.x()<<", mapped: "<<mapToScene(newPos.x(), 0).x();
230 m_startPos = GenTime((int) newPos.x(), m_fps);
236 m_startPos = GenTime((int) newPos.x(), m_fps);
237 //kDebug()<<"// ITEM NEW POS: "<<newPos.x()<<", mapped: "<<mapToScene(newPos.x(), 0).x();
240 return QGraphicsItem::itemChange(change, value);
244 OPERATIONTYPE Transition::operationMode(QPointF pos)
246 if (isItemLocked()) return NONE;
248 const double scale = projectScene()->scale().x();
249 double maximumOffset = 6 / scale;
251 QRectF rect = sceneBoundingRect();
252 if (qAbs((int)(pos.x() - rect.x())) < maximumOffset) return RESIZESTART;
253 else if (qAbs((int)(pos.x() - (rect.right()))) < maximumOffset) return RESIZEEND;
257 bool Transition::hasClip(const ClipItem * clip) const
259 if (clip == m_secondClip) return true;
263 bool Transition::belongsToClip(const ClipItem * clip) const
265 if (clip == m_referenceClip) return true;
270 Transition *Transition::clone() {
271 return new Transition::Transition(rect(), m_referenceClip, toXML() , m_fps);
275 Transition *Transition::reparent(ClipItem * clip) {
276 return new Transition::Transition(rect(), clip, toXML(), m_fps, m_referenceClip->startPos());
279 bool Transition::isValid() const
281 return true; //(m_transitionDuration != GenTime());
284 const ClipItem *Transition::referencedClip() const
286 return m_referenceClip;
289 QDomElement Transition::toXML()
291 m_parameters.setAttribute("type", transitionTag());
292 //m_transitionParameters.setAttribute("inverted", invertTransition());
293 m_parameters.setAttribute("transition_atrack", track());
294 m_parameters.setAttribute("transition_btrack", m_transitionTrack);
295 m_parameters.setAttribute("start", startPos().frames(m_fps));
296 m_parameters.setAttribute("end", endPos().frames(m_fps));
297 m_parameters.setAttribute("force_track", m_forceTransitionTrack);
300 m_parameters.setAttribute("clipb_starttime", m_secondClip->startPos().frames(m_referenceClip->fps()));
301 m_parameters.setAttribute("clipb_track", transitionEndTrack());
303 return m_parameters.cloneNode().toElement();
306 bool Transition::hasGeometry()
308 QDomNodeList namenode = m_parameters.elementsByTagName("parameter");
309 for (int i = 0; i < namenode.count() ; i++) {
310 QDomElement pa = namenode.item(i).toElement();
311 if (pa.attribute("type") == "geometry") return true;