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 ***************************************************************************/
26 #include "transition.h"
28 #include "kdenlivesettings.h"
31 Transition::Transition(const QRectF& rect , ClipItem * clipa, const TRANSITIONTYPE & type, const GenTime &startTime, const GenTime &endTime, double fps, bool inverted) : AbstractClipItem(rect) {
32 m_invertTransition = inverted;
34 m_transitionTrack = 0;
36 m_transitionType = type;
37 m_transitionName = getTransitionName(m_transitionType);
39 GenTime duration = endTime - startTime;
41 // Default duration = 2.5 seconds
42 GenTime defaultTransitionDuration = GenTime(2.5);
44 m_referenceClip = clipa;
45 if (startTime < m_referenceClip->startPos()) m_transitionStart = GenTime(0.0);
46 else if (startTime > m_referenceClip->endPos()) m_transitionStart = m_referenceClip->duration() - defaultTransitionDuration;
47 else m_transitionStart = startTime - m_referenceClip->startPos();
49 if (m_transitionStart + duration > m_referenceClip->duration())
50 m_transitionDuration = m_referenceClip->duration() - m_transitionStart;
51 else m_transitionDuration = duration;
53 setFlags(QGraphicsItem::ItemClipsToShape | QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
56 // create a transition from XML
57 Transition::Transition(const QRectF& rect , ClipItem * clip, QDomElement transitionElement, double fps, GenTime offset) : AbstractClipItem(rect) {
58 if (offset == GenTime()) offset = clip->startPos();
59 m_referenceClip = clip;
62 m_transitionStart = GenTime(transitionElement.attribute("start", QString::null).toInt(), m_referenceClip->fps());
63 m_transitionDuration = GenTime(transitionElement.attribute("end", QString::null).toInt(), m_referenceClip->fps()) - m_transitionStart;
64 m_transitionTrack = transitionElement.attribute("transition_track", "0").toInt();
65 m_transitionStart = m_transitionStart - offset;
67 m_invertTransition = transitionElement.attribute("inverted", "0").toInt();
68 uint transType = transitionElement.attribute("type", "0").toInt();
69 if (transType == LUMA_TRANSITION) m_transitionType = LUMA_TRANSITION;
70 else if (transType == COMPOSITE_TRANSITION) m_transitionType = COMPOSITE_TRANSITION;
71 else if (transType == PIP_TRANSITION) m_transitionType = PIP_TRANSITION;
72 else if (transType == LUMAFILE_TRANSITION) m_transitionType = LUMAFILE_TRANSITION;
73 else if (transType == MIX_TRANSITION) m_transitionType = MIX_TRANSITION;
75 // load transition parameters
76 typedef QMap<QString, QString> ParamMap;
78 for (QDomNode n = transitionElement.firstChild(); !n.isNull(); n = n.nextSibling()) {
79 QDomElement paramElement = n.toElement();
80 params[paramElement.tagName()] = paramElement.attribute("value", QString::null);
82 if (m_invertTransition) params["reverse"] = "1";
83 if (!params.isEmpty()) setTransitionParameters(params);
85 // Check if transition is valid (not outside of clip)
86 if (m_transitionStart > clip->duration())
87 m_transitionDuration = GenTime();
91 Transition::~Transition() {
94 void Transition::setTransitionType(TRANSITIONTYPE newType) {
95 m_transitionType = newType;
96 m_transitionName = getTransitionName(m_transitionType);
99 TRANSITIONTYPE Transition::transitionType() const {
100 return m_transitionType;
103 QString Transition::transitionTag()const {
104 switch (m_transitionType) {
105 case COMPOSITE_TRANSITION:
117 QString Transition::getTransitionName(const TRANSITIONTYPE & type) {
118 if (type == COMPOSITE_TRANSITION) return i18n("Push");
119 else if (type == PIP_TRANSITION) return i18n("Pip");
120 else if (type == LUMAFILE_TRANSITION) return i18n("Wipe");
121 else if (type == MIX_TRANSITION) return i18n("Audio Fade");
122 return i18n("Crossfade");
125 TRANSITIONTYPE Transition::getTransitionForName(const QString & type) {
126 if (type == i18n("Push")) return COMPOSITE_TRANSITION;
127 else if (type == i18n("Pip")) return PIP_TRANSITION;
128 else if (type == i18n("Wipe")) return LUMAFILE_TRANSITION;
129 return LUMA_TRANSITION;
133 QString Transition::transitionName() const {
134 return m_transitionName;
137 void Transition::setTransitionParameters(const QMap < QString, QString > parameters) {
138 m_transitionParameters = parameters;
141 const QMap < QString, QString > Transition::transitionParameters() const {
142 return m_transitionParameters;
145 bool Transition::invertTransition() const {
147 if (m_referenceClip->startPos() < m_secondClip->startPos()) return true;
150 return m_invertTransition;
153 QPixmap Transition::transitionPixmap() const {
155 if (m_transitionType == LUMA_TRANSITION) {
156 if (invertTransition()) icon = KIcon("kdenlive_trans_down");
157 else icon = KIcon("kdenlive_trans_up");
158 } else if (m_transitionType == COMPOSITE_TRANSITION) {
159 icon = KIcon("kdenlive_trans_wiper");
160 } else if (m_transitionType == LUMAFILE_TRANSITION) {
161 icon = KIcon("kdenlive_trans_luma");
162 } else icon = KIcon("kdenlive_trans_pip");
163 return icon.pixmap(QSize(15, 15));
166 int Transition::transitionTrack() const {
167 return m_transitionTrack;
170 void Transition::setTransitionTrack(int track) {
171 m_transitionTrack = track;
174 void Transition::setTransitionDirection(bool inv) {
175 m_invertTransition = inv;
178 int Transition::transitionStartTrack() const {
179 return m_referenceClip->track();
182 int Transition::transitionEndTrack() const {
183 if (!m_singleClip) return m_secondClip->track();
184 return m_referenceClip->track() + 1;
185 //TODO: calculate next video track
188 GenTime Transition::transitionDuration() const {
189 return transitionEndTime() - transitionStartTime();
192 GenTime Transition::transitionStartTime() const {
194 GenTime startb = m_secondClip->startPos();
195 GenTime starta = m_referenceClip->startPos();
196 if (startb > m_referenceClip->endPos()) return m_referenceClip->endPos() - GenTime(0.12);
200 } else return m_referenceClip->startPos() + m_transitionStart;
204 GenTime Transition::transitionEndTime() const {
206 GenTime endb = m_secondClip->endPos();
207 GenTime enda = m_referenceClip->endPos();
208 if (m_secondClip->startPos() > enda) return enda;
209 if (endb < m_referenceClip->startPos()) return m_referenceClip->startPos() + GenTime(0.12);
210 else if (endb > enda) return enda;
213 if (m_transitionStart + m_transitionDuration > m_referenceClip->duration())
214 return m_referenceClip->endPos();
215 return m_referenceClip->startPos() + m_transitionStart + m_transitionDuration;
218 void Transition::paint(QPainter *painter,
219 const QStyleOptionGraphicsItem *option,
221 painter->fillRect(rect(), QBrush(Qt::green));
224 int Transition::type() const {
227 OPERATIONTYPE Transition::operationMode(QPointF pos, double scale) {
230 void Transition::resizeTransitionStart(GenTime time) {
231 if (!m_singleClip) return; //cannot resize automatic transitions
232 if (time < m_referenceClip->startPos()) time = m_referenceClip->startPos();
233 // Transitions shouldn't be shorter than 3 frames, about 0.12 seconds
234 if (transitionEndTime().ms() - time.ms() < 120.0) time = transitionEndTime() - GenTime(0.12);
235 m_transitionDuration = m_transitionDuration - (time - m_referenceClip->startPos() - m_transitionStart);
236 m_transitionStart = time - m_referenceClip->startPos();
239 void Transition::resizeTransitionEnd(GenTime time) {
240 if (!m_singleClip) return; //cannot resize automatic transitions
241 if (time > m_referenceClip->endPos()) time = m_referenceClip->endPos();
242 // Transitions shouldn't be shorter than 3 frames, about 0.12 seconds
243 if (time.ms() - transitionStartTime().ms() < 120.0) time = transitionStartTime() + GenTime(0.12);
244 m_transitionDuration = time - (m_referenceClip->startPos() + m_transitionStart);
247 void Transition::moveTransition(GenTime time) {
248 if (!m_singleClip) return; //cannot move automatic transitions
249 if (m_transitionStart + time < GenTime(0.0)) m_transitionStart = GenTime(0.0);
250 else if (m_transitionStart + time > m_referenceClip->duration() - m_transitionDuration)
251 m_transitionStart = m_referenceClip->duration() - m_transitionDuration;
252 else m_transitionStart = m_transitionStart + time;
253 if (m_transitionStart < GenTime(0.0)) m_transitionStart = GenTime(0.0);
256 bool Transition::hasClip(const ClipItem * clip) const {
257 if (clip == m_secondClip) return true;
261 bool Transition::belongsToClip(const ClipItem * clip) const {
262 if (clip == m_referenceClip) return true;
266 Transition *Transition::clone() {
267 return new Transition::Transition(rect(), m_referenceClip, this->toXML() , m_fps);
268 /*if (m_singleClip || m_secondClip == 0)
269 return new Transition::Transition(m_referenceClip);
271 //return new Transition::Transition(m_referenceClip, m_secondClip);
272 return new Transition::Transition(m_referenceClip, this->toXML());
276 Transition *Transition::reparent(ClipItem * clip) {
277 return new Transition::Transition(rect(), clip, this->toXML(), m_fps, m_referenceClip->startPos());
280 bool Transition::isValid() const {
281 return (m_transitionDuration != GenTime());
284 const ClipItem *Transition::referencedClip() const {
285 return m_referenceClip;
288 QDomElement Transition::toXML() {
290 QDomElement effect = doc.createElement("ktransition");
291 effect.setAttribute("type", transitionType());
292 effect.setAttribute("inverted", invertTransition());
293 effect.setAttribute("transition_track", m_transitionTrack);
294 effect.setAttribute("start", transitionStartTime().frames(m_referenceClip->fps()));
295 effect.setAttribute("end", transitionEndTime().frames(m_referenceClip->fps()));
298 effect.setAttribute("clipb_starttime", m_secondClip->startPos().frames(m_referenceClip->fps()));
299 effect.setAttribute("clipb_track", transitionEndTrack());
303 QMap<QString, QString>::Iterator it;
304 for (it = m_transitionParameters.begin(); it != m_transitionParameters.end(); ++it) {
305 QDomElement param = doc.createElement(it.key());
306 param.setAttribute("value", it.value());
307 effect.appendChild(param);
313 GenTime Transition::startPos() const {
317 GenTime Transition::endPos() const {
321 int Transition::track() const {
325 GenTime Transition::duration() const {