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 QPixmap Transition::transitionPixmap() const
123 QString tag = transitionTag();
125 if (invertedTransition()) icon = KIcon("kdenlive_trans_up");
126 else icon = KIcon("kdenlive_trans_down");
127 } else if (tag == "composite") {
128 icon = KIcon("kdenlive_trans_wiper");
129 } else if (tag == "lumafile") {
130 icon = KIcon("kdenlive_trans_luma");
131 } else icon = KIcon("kdenlive_trans_pip");
132 return icon.pixmap(QSize(15, 15));
136 void Transition::setTransitionDirection(bool /*inv*/)
138 //m_parameters.setAttribute("reverse", inv);
141 int Transition::transitionEndTrack() const
143 return m_transitionTrack;
146 void Transition::updateTransitionEndTrack(int newtrack)
148 if (!m_forceTransitionTrack) m_transitionTrack = newtrack;
151 void Transition::setForcedTrack(bool force, int track)
153 m_forceTransitionTrack = force;
154 m_transitionTrack = track;
157 bool Transition::forcedTrack() const
159 return m_forceTransitionTrack;
162 void Transition::paint(QPainter *painter,
163 const QStyleOptionGraphicsItem *option,
166 const double scale = option->matrix.m11();
167 QRectF exposed = option->exposedRect;
168 painter->setClipRect(exposed);
170 QRectF mapped = painter->matrix().mapRect(br);
172 painter->fillRect(exposed, brush());
174 //int top = (int)(br.y() + br.height() / 2 - 7);
175 QPointF p1(br.x(), br.y() + br.height() / 2 - 7);
176 painter->setMatrixEnabled(false);
177 //painter->drawPixmap(painter->matrix().map(p1) + QPointF(5, 0), transitionPixmap());
178 QString text = transitionName();
179 if (m_forceTransitionTrack) text.append("|>");
180 QRectF txtBounding = painter->boundingRect(mapped, Qt::AlignHCenter | Qt::AlignVCenter, ' ' + text + ' ');
181 painter->fillRect(txtBounding, QBrush(QColor(50, 50, 0, 150)));
182 txtBounding.translate(QPointF(1, 1));
183 painter->setPen(QColor(255, 255, 255, 255));
184 painter->drawText(txtBounding, Qt::AlignCenter, text);
186 /* painter->setPen(QColor(0, 0, 0, 180));
187 top += painter->fontInfo().pixelSize();
188 QPointF p2(br.x(), top);
189 painter->drawText(painter->matrix().map(p2) + QPointF(26, 1), transitionName());
190 painter->setPen(QColor(255, 255, 255, 180));
191 QPointF p3(br.x(), top);
192 painter->drawText(painter->matrix().map(p3) + QPointF(25, 0), transitionName());*/
193 painter->setMatrixEnabled(true);
194 QPen pen = painter->pen();
197 pen.setColor(Qt::red);
200 pen.setColor(Qt::black);
205 pen.setCosmetic(true);
206 painter->setPen(pen);
207 painter->setClipping(false);
208 painter->drawRect(br.adjusted(0, 0, -1 / scale, 0));
211 int Transition::type() const
213 return TRANSITIONWIDGET;
217 QVariant Transition::itemChange(GraphicsItemChange change, const QVariant &value)
219 if (change == ItemPositionChange && scene()) {
220 // calculate new position.
221 QPointF newPos = value.toPointF();
222 int xpos = projectScene()->getSnapPointForPos((int) newPos.x(), KdenliveSettings::snaptopoints());
223 xpos = qMax(xpos, 0);
225 int newTrack = newPos.y() / KdenliveSettings::trackheight();
226 newTrack = qMin(newTrack, projectScene()->tracksCount() - 1);
227 newTrack = qMax(newTrack, 0);
228 newPos.setY((int)(newTrack * KdenliveSettings::trackheight() + KdenliveSettings::trackheight() / 3 * 2));
229 // Only one clip is moving
230 QRectF sceneShape = rect();
231 sceneShape.translate(newPos);
232 QList<QGraphicsItem*> items = scene()->items(sceneShape, Qt::IntersectsItemShape);
233 items.removeAll(this);
235 if (!items.isEmpty()) {
236 for (int i = 0; i < items.count(); i++) {
237 if (items.at(i)->type() == type()) {
238 // Collision! Don't move.
239 //kDebug()<<"/// COLLISION WITH ITEM: "<<items.at(i)->boundingRect()<<", POS: "<<items.at(i)->pos()<<", ME: "<<newPos;
240 QPointF otherPos = items.at(i)->pos();
241 if ((int) otherPos.y() != (int) pos().y()) return pos();
242 //kDebug()<<"//// CURRENT Y: "<<pos().y()<<", COLLIDING Y: "<<otherPos.y();
243 if (pos().x() < otherPos.x()) {
244 int npos = (static_cast < AbstractClipItem* >(items.at(i))->startPos() - m_cropDuration).frames(m_fps);
247 // get pos just after colliding clip
248 int npos = static_cast < AbstractClipItem* >(items.at(i))->endPos().frames(m_fps);
252 //kDebug()<<"// ITEM NEW POS: "<<newPos.x()<<", mapped: "<<mapToScene(newPos.x(), 0).x();
253 m_startPos = GenTime((int) newPos.x(), m_fps);
259 m_startPos = GenTime((int) newPos.x(), m_fps);
260 //kDebug()<<"// ITEM NEW POS: "<<newPos.x()<<", mapped: "<<mapToScene(newPos.x(), 0).x();
263 return QGraphicsItem::itemChange(change, value);
267 OPERATIONTYPE Transition::operationMode(QPointF pos)
269 if (isItemLocked()) return NONE;
271 const double scale = projectScene()->scale().x();
272 double maximumOffset = 6 / scale;
274 QRectF rect = sceneBoundingRect();
275 if (qAbs((int)(pos.x() - rect.x())) < maximumOffset) return RESIZESTART;
276 else if (qAbs((int)(pos.x() - (rect.right()))) < maximumOffset) return RESIZEEND;
280 bool Transition::hasClip(const ClipItem * clip) const
282 if (clip == m_secondClip) return true;
286 bool Transition::belongsToClip(const ClipItem * clip) const
288 if (clip == m_referenceClip) return true;
293 Transition *Transition::clone() {
294 return new Transition::Transition(rect(), m_referenceClip, toXML() , m_fps);
298 Transition *Transition::reparent(ClipItem * clip) {
299 return new Transition::Transition(rect(), clip, toXML(), m_fps, m_referenceClip->startPos());
302 bool Transition::isValid() const
304 return true; //(m_transitionDuration != GenTime());
307 const ClipItem *Transition::referencedClip() const
309 return m_referenceClip;
312 QDomElement Transition::toXML()
314 m_parameters.setAttribute("type", transitionTag());
315 //m_transitionParameters.setAttribute("inverted", invertTransition());
316 m_parameters.setAttribute("transition_atrack", track());
317 m_parameters.setAttribute("transition_btrack", m_transitionTrack);
318 m_parameters.setAttribute("start", startPos().frames(m_fps));
319 m_parameters.setAttribute("end", endPos().frames(m_fps));
320 m_parameters.setAttribute("force_track", m_forceTransitionTrack);
323 m_parameters.setAttribute("clipb_starttime", m_secondClip->startPos().frames(m_referenceClip->fps()));
324 m_parameters.setAttribute("clipb_track", transitionEndTrack());
329 bool Transition::hasGeometry()
331 QDomNodeList namenode = m_parameters.elementsByTagName("parameter");
332 for (int i = 0; i < namenode.count() ; i++) {
333 QDomElement pa = namenode.item(i).toElement();
334 if (pa.attribute("type") == "geometry") return true;