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()
70 if (scene()) scene()->removeItem(this);
73 Transition *Transition::clone()
75 QDomElement xml = toXML().cloneNode().toElement();
76 Transition *tr = new Transition(info(), transitionEndTrack(), m_fps, xml);
80 QString Transition::transitionName() const
85 QString Transition::transitionTag() const
87 return m_parameters.attribute("tag");
90 bool Transition::isAutomatic() const
92 return m_automaticTransition;
95 void Transition::setAutomatic(bool automatic)
97 m_automaticTransition = automatic;
99 m_parameters.setAttribute("automatic", 1);
100 setBrush(QColor(200, 200, 50, 150));
102 m_parameters.removeAttribute("automatic");
103 setBrush(QColor(200, 50, 50, 150));
108 void Transition::setTransitionParameters(const QDomElement params)
110 m_parameters = params;
111 if (m_parameters.attribute("force_track") == "1") setForcedTrack(true, m_parameters.attribute("transition_btrack").toInt());
112 else if (m_parameters.attribute("force_track") == "0") setForcedTrack(false, m_parameters.attribute("transition_btrack").toInt());
113 m_name = m_parameters.elementsByTagName("name").item(0).toElement().text();
118 bool Transition::invertedTransition() const
120 return false; //m_parameters.attribute("reverse").toInt();
123 void Transition::setTransitionDirection(bool /*inv*/)
125 //m_parameters.setAttribute("reverse", inv);
128 int Transition::transitionEndTrack() const
130 return m_transitionTrack;
133 void Transition::updateTransitionEndTrack(int newtrack)
135 if (!m_forceTransitionTrack) m_transitionTrack = newtrack;
138 void Transition::setForcedTrack(bool force, int track)
140 m_forceTransitionTrack = force;
141 m_transitionTrack = track;
144 bool Transition::forcedTrack() const
146 return m_forceTransitionTrack;
149 void Transition::paint(QPainter *painter,
150 const QStyleOptionGraphicsItem *option,
153 const QRectF exposed = option->exposedRect;
154 painter->setClipRect(exposed);
155 const QRectF br = rect();
156 const QRectF mapped = painter->matrix().mapRect(br);
158 painter->fillRect(exposed, brush());
160 //int top = (int)(br.y() + br.height() / 2 - 7);
161 QPointF p1(br.x(), br.y() + br.height() / 2 - 7);
162 painter->setMatrixEnabled(false);
163 //painter->drawPixmap(painter->matrix().map(p1) + QPointF(5, 0), transitionPixmap());
164 const QString text = m_name + (m_forceTransitionTrack ? "|>" : QString());
167 QColor frameColor(brush().color().darker());
168 if (isSelected() || (parentItem() && parentItem()->isSelected())) {
169 frameColor = QColor(Qt::red);
171 frameColor.setAlpha(160);
173 const QRectF txtBounding = painter->boundingRect(mapped, Qt::AlignHCenter | Qt::AlignVCenter, ' ' + text + ' ');
174 //painter->fillRect(txtBounding2, frameColor);
175 painter->setBrush(frameColor);
176 painter->setPen(Qt::NoPen);
177 painter->drawRoundedRect(txtBounding, 3, 3);
178 painter->setBrush(QBrush(Qt::NoBrush));
180 painter->setPen(Qt::white);
181 painter->drawText(txtBounding, Qt::AlignCenter, text);
184 QPen pen = painter->pen();
185 pen.setColor(frameColor);
186 painter->setPen(pen);
187 painter->setClipping(false);
188 painter->drawRect(painter->matrix().mapRect(rect()));
191 int Transition::type() const
193 return TRANSITIONWIDGET;
197 QVariant Transition::itemChange(GraphicsItemChange change, const QVariant &value)
199 if (change == ItemPositionChange && scene()) {
200 // calculate new position.
201 QPointF newPos = value.toPointF();
202 int xpos = projectScene()->getSnapPointForPos((int) newPos.x(), KdenliveSettings::snaptopoints());
203 xpos = qMax(xpos, 0);
205 int newTrack = newPos.y() / KdenliveSettings::trackheight();
206 newTrack = qMin(newTrack, projectScene()->tracksCount() - 1);
207 newTrack = qMax(newTrack, 0);
208 newPos.setY((int)(newTrack * KdenliveSettings::trackheight() + KdenliveSettings::trackheight() / 3 * 2));
209 // Only one clip is moving
210 QRectF sceneShape = rect();
211 sceneShape.translate(newPos);
212 QList<QGraphicsItem*> items;
213 if (projectScene()->editMode() == NORMALEDIT)
214 items = scene()->items(sceneShape, Qt::IntersectsItemShape);
215 items.removeAll(this);
217 if (!items.isEmpty()) {
218 for (int i = 0; i < items.count(); i++) {
219 if (items.at(i)->type() == type()) {
220 // Collision! Don't move.
221 //kDebug()<<"/// COLLISION WITH ITEM: "<<items.at(i)->boundingRect()<<", POS: "<<items.at(i)->pos()<<", ME: "<<newPos;
222 QPointF otherPos = items.at(i)->pos();
223 if ((int) otherPos.y() != (int) pos().y()) return pos();
224 //kDebug()<<"//// CURRENT Y: "<<pos().y()<<", COLLIDING Y: "<<otherPos.y();
225 if (pos().x() < otherPos.x()) {
226 int npos = (static_cast < AbstractClipItem* >(items.at(i))->startPos() - m_info.cropDuration).frames(m_fps);
229 // get pos just after colliding clip
230 int npos = static_cast < AbstractClipItem* >(items.at(i))->endPos().frames(m_fps);
233 m_info.track = newTrack;
234 //kDebug()<<"// ITEM NEW POS: "<<newPos.x()<<", mapped: "<<mapToScene(newPos.x(), 0).x();
235 m_info.startPos = GenTime((int) newPos.x(), m_fps);
240 m_info.track = newTrack;
241 m_info.startPos = GenTime((int) newPos.x(), m_fps);
242 //kDebug()<<"// ITEM NEW POS: "<<newPos.x()<<", mapped: "<<mapToScene(newPos.x(), 0).x();
245 return QGraphicsItem::itemChange(change, value);
249 OPERATIONTYPE Transition::operationMode(QPointF pos)
251 if (isItemLocked()) return NONE;
253 const double scale = projectScene()->scale().x();
254 double maximumOffset = 6 / scale;
256 QRectF rect = sceneBoundingRect();
257 if (qAbs((int)(pos.x() - rect.x())) < maximumOffset) return RESIZESTART;
258 else if (qAbs((int)(pos.x() - (rect.right()))) < maximumOffset) return RESIZEEND;
262 bool Transition::hasClip(const ClipItem * clip) const
264 if (clip == m_secondClip) return true;
268 bool Transition::belongsToClip(const ClipItem * clip) const
270 if (clip == m_referenceClip) return true;
275 Transition *Transition::clone() {
276 return new Transition::Transition(rect(), m_referenceClip, toXML() , m_fps);
280 Transition *Transition::reparent(ClipItem * clip) {
281 return new Transition::Transition(rect(), clip, toXML(), m_fps, m_referenceClip->startPos());
284 bool Transition::isValid() const
286 return true; //(m_transitionDuration != GenTime());
289 const ClipItem *Transition::referencedClip() const
291 return m_referenceClip;
294 QDomElement Transition::toXML()
296 m_parameters.setAttribute("type", transitionTag());
297 //m_transitionParameters.setAttribute("inverted", invertTransition());
298 m_parameters.setAttribute("transition_atrack", track());
299 m_parameters.setAttribute("transition_btrack", m_transitionTrack);
300 m_parameters.setAttribute("start", startPos().frames(m_fps));
301 m_parameters.setAttribute("end", endPos().frames(m_fps));
302 m_parameters.setAttribute("force_track", m_forceTransitionTrack);
305 m_parameters.setAttribute("clipb_starttime", m_secondClip->startPos().frames(m_referenceClip->fps()));
306 m_parameters.setAttribute("clipb_track", transitionEndTrack());
308 return m_parameters.cloneNode().toElement();
311 bool Transition::hasGeometry()
313 QDomNodeList namenode = m_parameters.elementsByTagName("parameter");
314 for (int i = 0; i < namenode.count() ; i++) {
315 QDomElement pa = namenode.item(i).toElement();
316 if (pa.attribute("type") == "geometry") return true;
321 int Transition::defaultZValue() const