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), (qreal)(info.track * KdenliveSettings::trackheight() + KdenliveSettings::trackheight() / 3 * 2));
45 #if QT_VERSION >= 0x040600
46 m_startAnimation = new QPropertyAnimation(this, "rect");
47 m_startAnimation->setDuration(200);
48 QRectF r(0, 0, m_info.cropDuration.frames(fps) - 0.02, 1);
49 QRectF r2(0, 0, m_info.cropDuration.frames(fps) - 0.02, (qreal)(KdenliveSettings::trackheight() / 3 * 2 - 1));
50 m_startAnimation->setStartValue(r);
51 m_startAnimation->setEndValue(r2);
52 m_startAnimation->setEasingCurve(QEasingCurve::OutQuad);
53 m_startAnimation->start();
55 setRect(0, 0, m_info.cropDuration.frames(fps) - 0.02, (qreal)(KdenliveSettings::trackheight() / 3 * 2 - 1));
58 m_info.cropStart = GenTime();
59 m_maxDuration = GenTime(600);
61 if (m_automaticTransition) setBrush(QColor(200, 200, 50, 100));
62 else setBrush(QColor(200, 100, 50, 100));
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.elementsByTagName("name").item(0).toElement().text().toUtf8().data());
76 //m_referenceClip->addTransition(this);
79 Transition::~Transition()
82 #if QT_VERSION >= 0x040600
83 delete m_startAnimation;
85 if (scene()) scene()->removeItem(this);
88 Transition *Transition::clone()
90 QDomElement xml = toXML().cloneNode().toElement();
91 Transition *tr = new Transition(info(), transitionEndTrack(), m_fps, xml);
95 QString Transition::transitionTag() const
97 return m_parameters.attribute("tag");
100 QStringList Transition::transitionInfo() const
103 info << m_name << m_parameters.attribute("tag") << m_parameters.attribute("id");
107 bool Transition::isAutomatic() const
109 return m_automaticTransition;
112 void Transition::setAutomatic(bool automatic)
114 m_automaticTransition = automatic;
116 m_parameters.setAttribute("automatic", 1);
117 setBrush(QColor(200, 200, 50, 150));
119 m_parameters.removeAttribute("automatic");
120 setBrush(QColor(200, 50, 50, 150));
125 void Transition::setTransitionParameters(const QDomElement params)
127 m_parameters = params;
128 if (m_parameters.attribute("force_track") == "1") setForcedTrack(true, m_parameters.attribute("transition_btrack").toInt());
129 else if (m_parameters.attribute("force_track") == "0") setForcedTrack(false, m_parameters.attribute("transition_btrack").toInt());
130 m_name = i18n(m_parameters.elementsByTagName("name").item(0).toElement().text().toUtf8().data());
135 bool Transition::invertedTransition() const
137 return false; //m_parameters.attribute("reverse").toInt();
140 void Transition::setTransitionDirection(bool /*inv*/)
142 //m_parameters.setAttribute("reverse", inv);
145 int Transition::transitionEndTrack() const
147 return m_transitionTrack;
150 void Transition::updateTransitionEndTrack(int newtrack)
152 if (!m_forceTransitionTrack) m_transitionTrack = newtrack;
155 void Transition::setForcedTrack(bool force, int track)
157 m_forceTransitionTrack = force;
158 m_transitionTrack = track;
161 bool Transition::forcedTrack() const
163 return m_forceTransitionTrack;
166 void Transition::paint(QPainter *painter,
167 const QStyleOptionGraphicsItem *option,
170 const QRectF exposed = option->exposedRect;
171 painter->setClipRect(exposed);
172 const QRectF br = rect();
173 const QRectF mapped = painter->matrix().mapRect(br);
175 painter->fillRect(exposed, brush());
177 //int top = (int)(br.y() + br.height() / 2 - 7);
178 QPointF p1(br.x(), br.y() + br.height() / 2 - 7);
179 painter->setMatrixEnabled(false);
180 //painter->drawPixmap(painter->matrix().map(p1) + QPointF(5, 0), transitionPixmap());
181 const QString text = m_name + (m_forceTransitionTrack ? "|>" : QString());
184 QColor frameColor(brush().color().darker());
185 if (isSelected() || (parentItem() && parentItem()->isSelected())) {
186 frameColor = QColor(Qt::red);
188 frameColor.setAlpha(160);
190 const QRectF txtBounding = painter->boundingRect(mapped, Qt::AlignHCenter | Qt::AlignVCenter, ' ' + text + ' ');
191 //painter->fillRect(txtBounding2, frameColor);
192 painter->setBrush(frameColor);
193 painter->setPen(Qt::NoPen);
194 painter->drawRoundedRect(txtBounding, 3, 3);
195 painter->setBrush(QBrush(Qt::NoBrush));
197 painter->setPen(Qt::white);
198 painter->drawText(txtBounding, Qt::AlignCenter, text);
201 QPen pen = painter->pen();
202 pen.setColor(frameColor);
203 painter->setPen(pen);
204 painter->setClipping(false);
205 painter->drawRect(painter->matrix().mapRect(rect()));
208 int Transition::type() const
210 return TRANSITIONWIDGET;
214 QVariant Transition::itemChange(GraphicsItemChange change, const QVariant &value)
216 if (change == QGraphicsItem::ItemSelectedChange) {
217 if (value.toBool()) setZValue(10);
220 if (change == ItemPositionChange && scene()) {
221 // calculate new position.
222 QPointF newPos = value.toPointF();
223 int xpos = projectScene()->getSnapPointForPos((int) newPos.x(), KdenliveSettings::snaptopoints());
224 xpos = qMax(xpos, 0);
226 int newTrack = newPos.y() / KdenliveSettings::trackheight();
227 newTrack = qMin(newTrack, projectScene()->tracksCount() - 1);
228 newTrack = qMax(newTrack, 0);
229 newPos.setY((int)(newTrack * KdenliveSettings::trackheight() + KdenliveSettings::trackheight() / 3 * 2));
230 // Only one clip is moving
231 QRectF sceneShape = rect();
232 sceneShape.translate(newPos);
233 QList<QGraphicsItem*> items;
234 if (projectScene()->editMode() == NORMALEDIT)
235 items = scene()->items(sceneShape, Qt::IntersectsItemShape);
236 items.removeAll(this);
238 if (!items.isEmpty()) {
239 for (int i = 0; i < items.count(); i++) {
240 if (!items.at(i)->isEnabled()) continue;
241 if (items.at(i)->type() == type()) {
242 // Collision! Don't move.
243 //kDebug()<<"/// COLLISION WITH ITEM: "<<items.at(i)->boundingRect()<<", POS: "<<items.at(i)->pos()<<", ME: "<<newPos;
244 QPointF otherPos = items.at(i)->pos();
245 if ((int) otherPos.y() != (int) pos().y()) return pos();
246 //kDebug()<<"//// CURRENT Y: "<<pos().y()<<", COLLIDING Y: "<<otherPos.y();
247 if (pos().x() < otherPos.x()) {
248 int npos = (static_cast < AbstractClipItem* >(items.at(i))->startPos() - m_info.cropDuration).frames(m_fps);
251 // get pos just after colliding clip
252 int npos = static_cast < AbstractClipItem* >(items.at(i))->endPos().frames(m_fps);
255 m_info.track = newTrack;
256 //kDebug()<<"// ITEM NEW POS: "<<newPos.x()<<", mapped: "<<mapToScene(newPos.x(), 0).x();
257 m_info.startPos = GenTime((int) newPos.x(), m_fps);
262 m_info.track = newTrack;
263 m_info.startPos = GenTime((int) newPos.x(), m_fps);
264 //kDebug()<<"// ITEM NEW POS: "<<newPos.x()<<", mapped: "<<mapToScene(newPos.x(), 0).x();
267 return QGraphicsItem::itemChange(change, value);
271 OPERATIONTYPE Transition::operationMode(QPointF pos)
273 if (isItemLocked()) return NONE;
275 const double scale = projectScene()->scale().x();
276 double maximumOffset = 6 / scale;
278 QRectF rect = sceneBoundingRect();
279 if (qAbs((int)(pos.x() - rect.x())) < maximumOffset) return RESIZESTART;
280 else if (qAbs((int)(pos.x() - (rect.right()))) < maximumOffset) return RESIZEEND;
284 bool Transition::hasClip(const ClipItem * clip) const
286 if (clip == m_secondClip) return true;
290 bool Transition::belongsToClip(const ClipItem * clip) const
292 if (clip == m_referenceClip) return true;
297 Transition *Transition::clone() {
298 return new Transition::Transition(rect(), m_referenceClip, toXML() , m_fps);
302 Transition *Transition::reparent(ClipItem * clip) {
303 return new Transition::Transition(rect(), clip, toXML(), m_fps, m_referenceClip->startPos());
306 bool Transition::isValid() const
308 return true; //(m_transitionDuration != GenTime());
311 const ClipItem *Transition::referencedClip() const
313 return m_referenceClip;
316 QDomElement Transition::toXML()
318 m_parameters.setAttribute("type", transitionTag());
319 //m_transitionParameters.setAttribute("inverted", invertTransition());
320 m_parameters.setAttribute("transition_atrack", track());
321 m_parameters.setAttribute("transition_btrack", m_transitionTrack);
322 m_parameters.setAttribute("start", startPos().frames(m_fps));
323 m_parameters.setAttribute("end", endPos().frames(m_fps));
324 m_parameters.setAttribute("force_track", m_forceTransitionTrack);
327 m_parameters.setAttribute("clipb_starttime", m_secondClip->startPos().frames(m_referenceClip->fps()));
328 m_parameters.setAttribute("clipb_track", transitionEndTrack());
330 return m_parameters.cloneNode().toElement();
333 bool Transition::hasGeometry()
335 QDomNodeList namenode = m_parameters.elementsByTagName("parameter");
336 for (int i = 0; i < namenode.count() ; i++) {
337 QDomElement pa = namenode.item(i).toElement();
338 if (pa.attribute("type") == "geometry") return true;
343 int Transition::defaultZValue() const