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 ***************************************************************************/
19 #include <QDomElement>
21 #include <QGraphicsScene>
22 #include <QGraphicsView>
24 #include <QStyleOptionGraphicsItem>
30 #include "transition.h"
32 #include "kdenlivesettings.h"
33 #include "customtrackscene.h"
34 #include "mainwindow.h"
36 Transition::Transition(const ItemInfo info, int transitiontrack, double fps, QDomElement params, bool automaticTransition) : AbstractClipItem(info, QRectF(), fps), m_gradient(QLinearGradient(0, 0, 0, 0)), m_automaticTransition(automaticTransition), m_forceTransitionTrack(false) {
38 setRect(0, 0, (info.endPos - info.startPos).frames(fps) - 0.02, (qreal)(KdenliveSettings::trackheight() / 3 * 2 - 1));
39 setPos(info.startPos.frames(fps), (qreal)(info.track * KdenliveSettings::trackheight() + KdenliveSettings::trackheight() / 3 * 2));
42 m_transitionTrack = transitiontrack;
44 m_cropStart = GenTime();
45 m_maxDuration = GenTime(10000, fps);
47 m_gradient.setColorAt(0, QColor(200, 200, 0, 150));
48 m_gradient.setColorAt(1, QColor(200, 200, 200, 120));
50 //m_referenceClip = clipa;
51 if (params.isNull()) {
52 m_parameters = MainWindow::transitions.getEffectByName("Luma").cloneNode().toElement();
54 m_parameters = params;
56 if (m_automaticTransition) m_parameters.setAttribute("automatic", 1);
57 else if (m_parameters.attribute("automatic") == "1") m_automaticTransition = true;
58 if (m_parameters.attribute("force_track") == "1") m_forceTransitionTrack = true;
59 m_name = m_parameters.elementsByTagName("name").item(0).toElement().text();
61 setFlags(QGraphicsItem::ItemClipsToShape | QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
63 //m_referenceClip->addTransition(this);
66 Transition::~Transition() {
69 Transition *Transition::clone() {
70 QDomElement xml = toXML().cloneNode().toElement();
71 Transition *tr = new Transition(info(), transitionEndTrack(), m_fps, xml);
75 QString Transition::transitionName() const {
79 QString Transition::transitionTag() const {
80 return m_parameters.attribute("tag");
83 bool Transition::isAutomatic() const {
84 return m_automaticTransition;
87 void Transition::setAutomatic(bool automatic) {
88 m_automaticTransition = automatic;
89 if (automatic) m_parameters.setAttribute("automatic", 1);
90 else m_parameters.removeAttribute("automatic");
94 void Transition::setTransitionParameters(const QDomElement params) {
95 m_parameters = params;
96 if (m_parameters.attribute("force_track") == "1") setForcedTrack(true, m_parameters.attribute("transition_btrack").toInt());
97 else if (m_parameters.attribute("force_track") == "0") setForcedTrack(false, m_parameters.attribute("transition_btrack").toInt());
98 m_name = m_parameters.elementsByTagName("name").item(0).toElement().text();
103 bool Transition::invertedTransition() const {
104 return false; //m_parameters.attribute("reverse").toInt();
107 QPixmap Transition::transitionPixmap() const {
109 QString tag = transitionTag();
111 if (invertedTransition()) icon = KIcon("kdenlive_trans_up");
112 else icon = KIcon("kdenlive_trans_down");
113 } else if (tag == "composite") {
114 icon = KIcon("kdenlive_trans_wiper");
115 } else if (tag == "lumafile") {
116 icon = KIcon("kdenlive_trans_luma");
117 } else icon = KIcon("kdenlive_trans_pip");
118 return icon.pixmap(QSize(15, 15));
122 void Transition::setTransitionDirection(bool inv) {
123 //m_parameters.setAttribute("reverse", inv);
126 int Transition::transitionEndTrack() const {
127 return m_transitionTrack;
130 void Transition::updateTransitionEndTrack(int newtrack) {
131 if (!m_forceTransitionTrack) m_transitionTrack = newtrack;
134 void Transition::setForcedTrack(bool force, int track) {
135 m_forceTransitionTrack = force;
136 m_transitionTrack = track;
139 bool Transition::forcedTrack() const {
140 return m_forceTransitionTrack;
143 void Transition::paint(QPainter *painter,
144 const QStyleOptionGraphicsItem *option,
146 const double scale = option->matrix.m11();
147 QRectF exposed = option->exposedRect;
148 painter->setClipRect(exposed);
150 QRectF mapped = painter->matrix().mapRect(br);
151 m_gradient.setStart(0, br.y());
152 m_gradient.setFinalStop(0, br.bottom());
153 painter->fillRect(br, m_gradient);
155 int top = (int)(br.y() + br.height() / 2 - 7);
156 QPointF p1(br.x(), br.y() + br.height() / 2 - 7);
157 painter->setMatrixEnabled(false);
158 //painter->drawPixmap(painter->matrix().map(p1) + QPointF(5, 0), transitionPixmap());
159 QString text = transitionName();
160 if (m_forceTransitionTrack) text.append("|>");
161 if (m_automaticTransition) text.prepend('+');
162 QRectF txtBounding = painter->boundingRect(mapped, Qt::AlignHCenter | Qt::AlignVCenter, " " + text + " ");
163 painter->fillRect(txtBounding, QBrush(QColor(50, 50, 0, 150)));
164 txtBounding.translate(QPointF(1, 1));
165 painter->setPen(QColor(255, 255, 255, 255));
166 painter->drawText(txtBounding, Qt::AlignCenter, text);
168 /* painter->setPen(QColor(0, 0, 0, 180));
169 top += painter->fontInfo().pixelSize();
170 QPointF p2(br.x(), top);
171 painter->drawText(painter->matrix().map(p2) + QPointF(26, 1), transitionName());
172 painter->setPen(QColor(255, 255, 255, 180));
173 QPointF p3(br.x(), top);
174 painter->drawText(painter->matrix().map(p3) + QPointF(25, 0), transitionName());*/
175 painter->setMatrixEnabled(true);
176 QPen pen = painter->pen();
178 pen.setColor(Qt::red);
181 pen.setColor(Qt::black);
184 // expand clip rect to allow correct painting of clip border
185 exposed.setRight(exposed.right() + 1 / scale + 0.5);
186 exposed.setBottom(exposed.bottom() + 1);
187 painter->setClipRect(exposed);
188 painter->setPen(pen);
189 painter->drawRect(br);
192 int Transition::type() const {
193 return TRANSITIONWIDGET;
197 QVariant Transition::itemChange(GraphicsItemChange change, const QVariant &value) {
198 if (change == ItemPositionChange && scene()) {
199 // calculate new position.
200 QPointF newPos = value.toPointF();
201 int xpos = projectScene()->getSnapPointForPos((int) newPos.x(), KdenliveSettings::snaptopoints());
202 xpos = qMax(xpos, 0);
204 int newTrack = newPos.y() / KdenliveSettings::trackheight();
205 newTrack = qMin(newTrack, projectScene()->tracksCount() - 1);
206 newTrack = qMax(newTrack, 0);
207 newPos.setY((int)(newTrack * KdenliveSettings::trackheight() + KdenliveSettings::trackheight() / 3 * 2));
208 // Only one clip is moving
209 QRectF sceneShape = rect();
210 sceneShape.translate(newPos);
211 QList<QGraphicsItem*> items = scene()->items(sceneShape, Qt::IntersectsItemShape);
212 items.removeAll(this);
214 if (!items.isEmpty()) {
215 for (int i = 0; i < items.count(); i++) {
216 if (items.at(i)->type() == type()) {
217 // Collision! Don't move.
218 //kDebug()<<"/// COLLISION WITH ITEM: "<<items.at(i)->boundingRect()<<", POS: "<<items.at(i)->pos()<<", ME: "<<newPos;
219 QPointF otherPos = items.at(i)->pos();
220 if ((int) otherPos.y() != (int) pos().y()) return pos();
221 //kDebug()<<"//// CURRENT Y: "<<pos().y()<<", COLLIDING Y: "<<otherPos.y();
222 if (pos().x() < otherPos.x()) {
223 int npos = (static_cast < AbstractClipItem* >(items.at(i))->startPos() - m_cropDuration).frames(m_fps);
226 // get pos just after colliding clip
227 int npos = static_cast < AbstractClipItem* >(items.at(i))->endPos().frames(m_fps);
231 //kDebug()<<"// ITEM NEW POS: "<<newPos.x()<<", mapped: "<<mapToScene(newPos.x(), 0).x();
232 m_startPos = GenTime((int) newPos.x(), m_fps);
238 m_startPos = GenTime((int) newPos.x(), m_fps);
239 //kDebug()<<"// ITEM NEW POS: "<<newPos.x()<<", mapped: "<<mapToScene(newPos.x(), 0).x();
242 return QGraphicsItem::itemChange(change, value);
246 OPERATIONTYPE Transition::operationMode(QPointF pos) {
247 const double scale = projectScene()->scale();
248 double maximumOffset = 6 / scale;
250 QRectF rect = sceneBoundingRect();
251 if (qAbs((int)(pos.x() - rect.x())) < maximumOffset) return RESIZESTART;
252 else if (qAbs((int)(pos.x() - (rect.right()))) < maximumOffset) return RESIZEEND;
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;
267 Transition *Transition::clone() {
268 return new Transition::Transition(rect(), m_referenceClip, this->toXML() , m_fps);
272 Transition *Transition::reparent(ClipItem * clip) {
273 return new Transition::Transition(rect(), clip, this->toXML(), m_fps, m_referenceClip->startPos());
276 bool Transition::isValid() const {
277 return true; //(m_transitionDuration != GenTime());
280 const ClipItem *Transition::referencedClip() const {
281 return m_referenceClip;
284 QDomElement Transition::toXML() {
285 m_parameters.setAttribute("type", transitionTag());
286 //m_transitionParameters.setAttribute("inverted", invertTransition());
287 m_parameters.setAttribute("transition_atrack", track());
288 m_parameters.setAttribute("transition_btrack", m_transitionTrack);
289 m_parameters.setAttribute("start", startPos().frames(m_fps));
290 m_parameters.setAttribute("end", endPos().frames(m_fps));
291 m_parameters.setAttribute("force_track", m_forceTransitionTrack);
294 m_parameters.setAttribute("clipb_starttime", m_secondClip->startPos().frames(m_referenceClip->fps()));
295 m_parameters.setAttribute("clipb_track", transitionEndTrack());