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 ***************************************************************************/
21 #include <QGraphicsScene>
22 #include <QGraphicsView>
24 #include <QStyleOptionGraphicsItem>
30 #include "transition.h"
32 #include "kdenlivesettings.h"
35 Transition::Transition(const QRectF& rect , ClipItem * clipa, const QString & type, const GenTime &startTime, const GenTime &endTime, double fps, bool inverted) : AbstractClipItem(rect) {
36 m_invertTransition = inverted;
38 m_transitionTrack = clipa->track();
40 m_transitionName = type;
42 m_cropDuration = endTime - startTime;
43 m_startPos = startTime;
44 m_maxDuration = GenTime(1000000);
45 // Default duration = 2.5 seconds
46 GenTime defaultTransitionDuration = GenTime(2.5);
48 m_referenceClip = clipa;
50 if (startTime < m_referenceClip->startPos()) m_transitionStart = GenTime(0.0);
51 else if (startTime > m_referenceClip->endPos()) m_transitionStart = m_referenceClip->duration() - defaultTransitionDuration;
52 else m_transitionStart = startTime - m_referenceClip->startPos();
54 if (m_transitionStart + m_cropDuration > m_referenceClip->duration())
55 m_transitionDuration = m_referenceClip->duration() - m_transitionStart;
56 else m_transitionDuration = m_cropDuration;
58 setFlags(QGraphicsItem::ItemClipsToShape | QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
60 m_referenceClip->addTransition(this);
63 // create a transition from XML
64 Transition::Transition(const QRectF& rect , ClipItem * clip, QDomElement transitionElement, double fps, GenTime offset) : AbstractClipItem(rect) {
65 if (offset == GenTime()) offset = clip->startPos();
66 m_referenceClip = clip;
69 m_transitionStart = GenTime(transitionElement.attribute("start", QString::null).toInt(), m_referenceClip->fps());
70 m_transitionDuration = GenTime(transitionElement.attribute("end", QString::null).toInt(), m_referenceClip->fps()) - m_transitionStart;
71 m_transitionTrack = transitionElement.attribute("transition_track", "0").toInt();
72 m_transitionStart = m_transitionStart - offset;
74 m_invertTransition = transitionElement.attribute("inverted", "0").toInt();
75 m_transitionName = transitionElement.attribute("type" , "luma");
77 // load transition parameters
78 typedef QMap<QString, QString> ParamMap;
80 for (QDomNode n = transitionElement.firstChild(); !n.isNull(); n = n.nextSibling()) {
81 QDomElement paramElement = n.toElement();
82 params[paramElement.tagName()] = paramElement.attribute("value", QString::null);
84 if (m_invertTransition) params["reverse"] = "1";
85 if (!params.isEmpty()) setTransitionParameters(params);
87 // Check if transition is valid (not outside of clip)
88 if (m_transitionStart > clip->duration())
89 m_transitionDuration = GenTime();
93 Transition::~Transition() {
96 QString Transition::transitionName() const {
97 return m_transitionName;
100 void Transition::setTransitionParameters(const QMap < QString, QString > parameters) {
101 m_transitionParameters = parameters;
104 const QMap < QString, QString > Transition::transitionParameters() const {
105 return m_transitionParameters;
108 bool Transition::invertTransition() const {
110 if (m_referenceClip->startPos() < m_secondClip->startPos()) return true;
113 return m_invertTransition;
116 QPixmap Transition::transitionPixmap() const {
118 if (m_transitionName == "luma") {
119 if (invertTransition()) icon = KIcon("kdenlive_trans_up");
120 else icon = KIcon("kdenlive_trans_down");
121 } else if (m_transitionName == "composite") {
122 icon = KIcon("kdenlive_trans_wiper");
123 } else if (m_transitionName == "lumafile") {
124 icon = KIcon("kdenlive_trans_luma");
125 } else icon = KIcon("kdenlive_trans_pip");
126 return icon.pixmap(QSize(15, 15));
129 int Transition::transitionTrack() const {
130 return m_transitionTrack;
133 void Transition::setTransitionTrack(int track) {
134 m_transitionTrack = track;
137 void Transition::setTransitionDirection(bool inv) {
138 m_invertTransition = inv;
141 int Transition::transitionStartTrack() const {
142 return m_referenceClip->track();
145 int Transition::transitionEndTrack() const {
146 if (!m_singleClip) return m_secondClip->track();
147 return m_referenceClip->track() + 1;
148 //TODO: calculate next video track
151 GenTime Transition::transitionDuration() const {
152 return transitionEndTime() - transitionStartTime();
155 GenTime Transition::transitionStartTime() const {
157 GenTime startb = m_secondClip->startPos();
158 GenTime starta = m_referenceClip->startPos();
159 if (startb > m_referenceClip->endPos()) return m_referenceClip->endPos() - GenTime(0.12);
163 } else return m_referenceClip->startPos() + m_transitionStart;
167 GenTime Transition::transitionEndTime() const {
169 GenTime endb = m_secondClip->endPos();
170 GenTime enda = m_referenceClip->endPos();
171 if (m_secondClip->startPos() > enda) return enda;
172 if (endb < m_referenceClip->startPos()) return m_referenceClip->startPos() + GenTime(0.12);
173 else if (endb > enda) return enda;
176 if (m_transitionStart + m_transitionDuration > m_referenceClip->duration())
177 return m_referenceClip->endPos();
178 return m_referenceClip->startPos() + m_transitionStart + m_transitionDuration;
181 void Transition::paint(QPainter *painter,
182 const QStyleOptionGraphicsItem *option,
184 QRect rectInView = visibleRect();//this is the rect that is visible by the user
186 if (rectInView.isNull())
188 QPainterPath clippath;
189 clippath.addRect(rectInView);
191 QPainterPath roundRectPathUpper = upperRectPart(br), roundRectPathLower = lowerRectPart(br);
193 QPainterPath resultClipPath = roundRectPathUpper.united(roundRectPathLower);
195 painter->setClipPath(resultClipPath.intersected(clippath), Qt::IntersectClip);
196 //painter->fillPath(roundRectPath, brush()); //, QBrush(QColor(Qt::red)));
197 painter->fillRect(br.intersected(rectInView), QBrush(QColor(200, 200, 0, 160)/*,Qt::Dense4Pattern*/));
198 painter->setClipRect(option->exposedRect);
199 painter->drawPixmap(br.x() + 10, br.y() + 10, transitionPixmap());
200 painter->drawPath(resultClipPath.intersected(clippath));
202 QPen pen = painter->pen();
204 pen.setColor(Qt::red);
207 pen.setColor(Qt::black);
210 painter->setPen(pen);
211 painter->setClipRect(option->exposedRect);
212 painter->drawPath(resultClipPath.intersected(clippath));
215 int Transition::type() const {
216 return TRANSITIONWIDGET;
218 OPERATIONTYPE Transition::operationMode(QPointF pos, double scale) {
219 if (abs((int)(pos.x() - rect().x())) < 6) return RESIZESTART;
220 else if (abs((int)(pos.x() - (rect().x() + rect().width()))) < 6) return RESIZEEND;
223 void Transition::resizeTransitionStart(GenTime time) {
224 if (!m_singleClip) return; //cannot resize automatic transitions
225 if (time < m_referenceClip->startPos()) time = m_referenceClip->startPos();
226 // Transitions shouldn't be shorter than 3 frames, about 0.12 seconds
227 if (transitionEndTime().ms() - time.ms() < 120.0) time = transitionEndTime() - GenTime(0.12);
228 m_transitionDuration = m_transitionDuration - (time - m_referenceClip->startPos() - m_transitionStart);
229 m_transitionStart = time - m_referenceClip->startPos();
232 void Transition::resizeTransitionEnd(GenTime time) {
233 if (!m_singleClip) return; //cannot resize automatic transitions
234 if (time > m_referenceClip->endPos()) time = m_referenceClip->endPos();
235 // Transitions shouldn't be shorter than 3 frames, about 0.12 seconds
236 if (time.ms() - transitionStartTime().ms() < 120.0) time = transitionStartTime() + GenTime(0.12);
237 m_transitionDuration = time - (m_referenceClip->startPos() + m_transitionStart);
240 void Transition::moveTransition(GenTime time) {
241 if (!m_singleClip) return; //cannot move automatic transitions
242 if (m_transitionStart + time < GenTime(0.0)) m_transitionStart = GenTime(0.0);
243 else if (m_transitionStart + time > m_referenceClip->duration() - m_transitionDuration)
244 m_transitionStart = m_referenceClip->duration() - m_transitionDuration;
245 else m_transitionStart = m_transitionStart + time;
246 if (m_transitionStart < GenTime(0.0)) m_transitionStart = GenTime(0.0);
249 bool Transition::hasClip(const ClipItem * clip) const {
250 if (clip == m_secondClip) return true;
254 bool Transition::belongsToClip(const ClipItem * clip) const {
255 if (clip == m_referenceClip) return true;
259 Transition *Transition::clone() {
260 return new Transition::Transition(rect(), m_referenceClip, this->toXML() , m_fps);
261 /*if (m_singleClip || m_secondClip == 0)
262 return new Transition::Transition(m_referenceClip);
264 //return new Transition::Transition(m_referenceClip, m_secondClip);
265 return new Transition::Transition(m_referenceClip, this->toXML());
269 Transition *Transition::reparent(ClipItem * clip) {
270 return new Transition::Transition(rect(), clip, this->toXML(), m_fps, m_referenceClip->startPos());
273 bool Transition::isValid() const {
274 return (m_transitionDuration != GenTime());
277 const ClipItem *Transition::referencedClip() const {
278 return m_referenceClip;
281 QDomElement Transition::toXML() {
283 QDomElement effect = doc.createElement("ktransition");
284 effect.setAttribute("type", m_transitionName);
285 effect.setAttribute("inverted", invertTransition());
286 effect.setAttribute("transition_track", m_transitionTrack);
287 effect.setAttribute("start", transitionStartTime().frames(m_referenceClip->fps()));
288 effect.setAttribute("end", transitionEndTime().frames(m_referenceClip->fps()));
291 effect.setAttribute("clipb_starttime", m_secondClip->startPos().frames(m_referenceClip->fps()));
292 effect.setAttribute("clipb_track", transitionEndTrack());
296 QMap<QString, QString>::Iterator it;
297 for (it = m_transitionParameters.begin(); it != m_transitionParameters.end(); ++it) {
298 QDomElement param = doc.createElement(it.key());
299 param.setAttribute("value", it.value());
300 effect.appendChild(param);