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) : AbstractClipItem(info, QRectF(), fps), m_automaticTransition(automaticTransition), m_forceTransitionTrack(false)
37 setRect(0, 0, (info.endPos - info.startPos).frames(fps) - 0.02, (qreal)(KdenliveSettings::trackheight() / 3 * 2 - 1));
38 setPos(info.startPos.frames(fps), (qreal)(info.track * KdenliveSettings::trackheight() + KdenliveSettings::trackheight() / 3 * 2));
41 m_transitionTrack = transitiontrack;
43 m_cropStart = GenTime();
44 m_maxDuration = GenTime(10000, fps);
46 if (m_automaticTransition) setBrush(QColor(200, 200, 50, 100));
47 else setBrush(QColor(200, 100, 50, 100));
49 //m_referenceClip = clipa;
50 if (params.isNull()) {
51 m_parameters = MainWindow::transitions.getEffectByName("Luma").cloneNode().toElement();
53 m_parameters = params;
55 if (m_automaticTransition) m_parameters.setAttribute("automatic", 1);
56 else if (m_parameters.attribute("automatic") == "1") m_automaticTransition = true;
57 if (m_parameters.attribute("force_track") == "1") m_forceTransitionTrack = true;
58 m_name = m_parameters.elementsByTagName("name").item(0).toElement().text();
60 setFlags(QGraphicsItem::ItemClipsToShape | QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
62 //m_referenceClip->addTransition(this);
65 Transition::~Transition()
69 Transition *Transition::clone()
71 QDomElement xml = toXML().cloneNode().toElement();
72 Transition *tr = new Transition(info(), transitionEndTrack(), m_fps, xml);
76 QString Transition::transitionName() const
81 QString Transition::transitionTag() const
83 return m_parameters.attribute("tag");
86 bool Transition::isAutomatic() const
88 return m_automaticTransition;
91 void Transition::setAutomatic(bool automatic)
93 m_automaticTransition = automatic;
95 m_parameters.setAttribute("automatic", 1);
96 setBrush(QColor(200, 200, 50, 150));
98 m_parameters.removeAttribute("automatic");
99 setBrush(QColor(200, 50, 50, 150));
104 void Transition::setTransitionParameters(const QDomElement params)
106 m_parameters = params;
107 if (m_parameters.attribute("force_track") == "1") setForcedTrack(true, m_parameters.attribute("transition_btrack").toInt());
108 else if (m_parameters.attribute("force_track") == "0") setForcedTrack(false, m_parameters.attribute("transition_btrack").toInt());
109 m_name = m_parameters.elementsByTagName("name").item(0).toElement().text();
114 bool Transition::invertedTransition() const
116 return false; //m_parameters.attribute("reverse").toInt();
119 QPixmap Transition::transitionPixmap() const
122 QString tag = transitionTag();
124 if (invertedTransition()) icon = KIcon("kdenlive_trans_up");
125 else icon = KIcon("kdenlive_trans_down");
126 } else if (tag == "composite") {
127 icon = KIcon("kdenlive_trans_wiper");
128 } else if (tag == "lumafile") {
129 icon = KIcon("kdenlive_trans_luma");
130 } else icon = KIcon("kdenlive_trans_pip");
131 return icon.pixmap(QSize(15, 15));
135 void Transition::setTransitionDirection(bool /*inv*/)
137 //m_parameters.setAttribute("reverse", inv);
140 int Transition::transitionEndTrack() const
142 return m_transitionTrack;
145 void Transition::updateTransitionEndTrack(int newtrack)
147 if (!m_forceTransitionTrack) m_transitionTrack = newtrack;
150 void Transition::setForcedTrack(bool force, int track)
152 m_forceTransitionTrack = force;
153 m_transitionTrack = track;
156 bool Transition::forcedTrack() const
158 return m_forceTransitionTrack;
161 void Transition::paint(QPainter *painter,
162 const QStyleOptionGraphicsItem *option,
165 const double scale = option->matrix.m11();
166 QRectF exposed = option->exposedRect;
167 painter->setClipRect(exposed);
169 QRectF mapped = painter->matrix().mapRect(br);
171 painter->fillRect(exposed, brush());
173 //int top = (int)(br.y() + br.height() / 2 - 7);
174 QPointF p1(br.x(), br.y() + br.height() / 2 - 7);
175 painter->setMatrixEnabled(false);
176 //painter->drawPixmap(painter->matrix().map(p1) + QPointF(5, 0), transitionPixmap());
177 QString text = transitionName();
178 if (m_forceTransitionTrack) text.append("|>");
179 QRectF txtBounding = painter->boundingRect(mapped, Qt::AlignHCenter | Qt::AlignVCenter, ' ' + text + ' ');
180 painter->fillRect(txtBounding, QBrush(QColor(50, 50, 0, 150)));
181 txtBounding.translate(QPointF(1, 1));
182 painter->setPen(QColor(255, 255, 255, 255));
183 painter->drawText(txtBounding, Qt::AlignCenter, text);
185 /* painter->setPen(QColor(0, 0, 0, 180));
186 top += painter->fontInfo().pixelSize();
187 QPointF p2(br.x(), top);
188 painter->drawText(painter->matrix().map(p2) + QPointF(26, 1), transitionName());
189 painter->setPen(QColor(255, 255, 255, 180));
190 QPointF p3(br.x(), top);
191 painter->drawText(painter->matrix().map(p3) + QPointF(25, 0), transitionName());*/
192 painter->setMatrixEnabled(true);
193 QPen pen = painter->pen();
195 pen.setColor(Qt::red);
198 pen.setColor(Qt::black);
201 // expand clip rect to allow correct painting of clip border
202 exposed.setRight(exposed.right() + 1 / scale + 0.5);
203 exposed.setBottom(exposed.bottom() + 1);
204 painter->setClipRect(exposed);
205 painter->setPen(pen);
206 painter->drawRect(br);
209 int Transition::type() const
211 return TRANSITIONWIDGET;
215 QVariant Transition::itemChange(GraphicsItemChange change, const QVariant &value)
217 if (change == ItemPositionChange && scene()) {
218 // calculate new position.
219 QPointF newPos = value.toPointF();
220 int xpos = projectScene()->getSnapPointForPos((int) newPos.x(), KdenliveSettings::snaptopoints());
221 xpos = qMax(xpos, 0);
223 int newTrack = newPos.y() / KdenliveSettings::trackheight();
224 newTrack = qMin(newTrack, projectScene()->tracksCount() - 1);
225 newTrack = qMax(newTrack, 0);
226 newPos.setY((int)(newTrack * KdenliveSettings::trackheight() + KdenliveSettings::trackheight() / 3 * 2));
227 // Only one clip is moving
228 QRectF sceneShape = rect();
229 sceneShape.translate(newPos);
230 QList<QGraphicsItem*> items = scene()->items(sceneShape, Qt::IntersectsItemShape);
231 items.removeAll(this);
233 if (!items.isEmpty()) {
234 for (int i = 0; i < items.count(); i++) {
235 if (items.at(i)->type() == type()) {
236 // Collision! Don't move.
237 //kDebug()<<"/// COLLISION WITH ITEM: "<<items.at(i)->boundingRect()<<", POS: "<<items.at(i)->pos()<<", ME: "<<newPos;
238 QPointF otherPos = items.at(i)->pos();
239 if ((int) otherPos.y() != (int) pos().y()) return pos();
240 //kDebug()<<"//// CURRENT Y: "<<pos().y()<<", COLLIDING Y: "<<otherPos.y();
241 if (pos().x() < otherPos.x()) {
242 int npos = (static_cast < AbstractClipItem* >(items.at(i))->startPos() - m_cropDuration).frames(m_fps);
245 // get pos just after colliding clip
246 int npos = static_cast < AbstractClipItem* >(items.at(i))->endPos().frames(m_fps);
250 //kDebug()<<"// ITEM NEW POS: "<<newPos.x()<<", mapped: "<<mapToScene(newPos.x(), 0).x();
251 m_startPos = GenTime((int) newPos.x(), m_fps);
257 m_startPos = GenTime((int) newPos.x(), m_fps);
258 //kDebug()<<"// ITEM NEW POS: "<<newPos.x()<<", mapped: "<<mapToScene(newPos.x(), 0).x();
261 return QGraphicsItem::itemChange(change, value);
265 OPERATIONTYPE Transition::operationMode(QPointF pos)
267 if (isItemLocked()) return NONE;
269 const double scale = projectScene()->scale();
270 double maximumOffset = 6 / scale;
272 QRectF rect = sceneBoundingRect();
273 if (qAbs((int)(pos.x() - rect.x())) < maximumOffset) return RESIZESTART;
274 else if (qAbs((int)(pos.x() - (rect.right()))) < maximumOffset) return RESIZEEND;
278 bool Transition::hasClip(const ClipItem * clip) const
280 if (clip == m_secondClip) return true;
284 bool Transition::belongsToClip(const ClipItem * clip) const
286 if (clip == m_referenceClip) return true;
291 Transition *Transition::clone() {
292 return new Transition::Transition(rect(), m_referenceClip, toXML() , m_fps);
296 Transition *Transition::reparent(ClipItem * clip) {
297 return new Transition::Transition(rect(), clip, toXML(), m_fps, m_referenceClip->startPos());
300 bool Transition::isValid() const
302 return true; //(m_transitionDuration != GenTime());
305 const ClipItem *Transition::referencedClip() const
307 return m_referenceClip;
310 QDomElement Transition::toXML()
312 m_parameters.setAttribute("type", transitionTag());
313 //m_transitionParameters.setAttribute("inverted", invertTransition());
314 m_parameters.setAttribute("transition_atrack", track());
315 m_parameters.setAttribute("transition_btrack", m_transitionTrack);
316 m_parameters.setAttribute("start", startPos().frames(m_fps));
317 m_parameters.setAttribute("end", endPos().frames(m_fps));
318 m_parameters.setAttribute("force_track", m_forceTransitionTrack);
321 m_parameters.setAttribute("clipb_starttime", m_secondClip->startPos().frames(m_referenceClip->fps()));
322 m_parameters.setAttribute("clipb_track", transitionEndTrack());
328 bool Transition::hasGeometry()
330 QDomNodeList namenode = m_parameters.elementsByTagName("parameter");
331 for (int i = 0;i < namenode.count() ;i++) {
332 QDomElement pa = namenode.item(i).toElement();
333 if (pa.attribute("type") == "geometry") return true;