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::setTransitionParameters(const QDomElement params) {
88 m_parameters = params;
89 if (m_parameters.attribute("force_track") == "1") setForcedTrack(true, m_parameters.attribute("transition_btrack").toInt());
90 else if (m_parameters.attribute("force_track") == "0") setForcedTrack(false, m_parameters.attribute("transition_btrack").toInt());
91 m_name = m_parameters.elementsByTagName("name").item(0).toElement().text();
96 bool Transition::invertedTransition() const {
97 return false; //m_parameters.attribute("reverse").toInt();
100 QPixmap Transition::transitionPixmap() const {
102 QString tag = transitionTag();
104 if (invertedTransition()) icon = KIcon("kdenlive_trans_up");
105 else icon = KIcon("kdenlive_trans_down");
106 } else if (tag == "composite") {
107 icon = KIcon("kdenlive_trans_wiper");
108 } else if (tag == "lumafile") {
109 icon = KIcon("kdenlive_trans_luma");
110 } else icon = KIcon("kdenlive_trans_pip");
111 return icon.pixmap(QSize(15, 15));
115 void Transition::setTransitionDirection(bool inv) {
116 //m_parameters.setAttribute("reverse", inv);
119 int Transition::transitionEndTrack() const {
120 return m_transitionTrack;
123 void Transition::updateTransitionEndTrack(int newtrack) {
124 if (!m_forceTransitionTrack) m_transitionTrack = newtrack;
127 void Transition::setForcedTrack(bool force, int track) {
128 m_forceTransitionTrack = force;
129 m_transitionTrack = track;
132 bool Transition::forcedTrack() const {
133 return m_forceTransitionTrack;
136 void Transition::paint(QPainter *painter,
137 const QStyleOptionGraphicsItem *option,
139 const double scale = option->matrix.m11();
140 QRectF exposed = option->exposedRect;
141 painter->setClipRect(exposed);
143 QRectF mapped = painter->matrix().mapRect(br);
144 m_gradient.setStart(0, br.y());
145 m_gradient.setFinalStop(0, br.bottom());
146 painter->fillRect(br, m_gradient);
148 int top = (int)(br.y() + br.height() / 2 - 7);
149 QPointF p1(br.x(), br.y() + br.height() / 2 - 7);
150 painter->setMatrixEnabled(false);
151 //painter->drawPixmap(painter->matrix().map(p1) + QPointF(5, 0), transitionPixmap());
152 QString text = transitionName();
153 if (forcedTrack()) text.append("|>");
154 QRectF txtBounding = painter->boundingRect(mapped, Qt::AlignHCenter | Qt::AlignVCenter, " " + text + " ");
155 painter->fillRect(txtBounding, QBrush(QColor(50, 50, 0, 150)));
156 txtBounding.translate(QPointF(1, 1));
157 painter->setPen(QColor(255, 255, 255, 255));
158 painter->drawText(txtBounding, Qt::AlignCenter, text);
160 /* painter->setPen(QColor(0, 0, 0, 180));
161 top += painter->fontInfo().pixelSize();
162 QPointF p2(br.x(), top);
163 painter->drawText(painter->matrix().map(p2) + QPointF(26, 1), transitionName());
164 painter->setPen(QColor(255, 255, 255, 180));
165 QPointF p3(br.x(), top);
166 painter->drawText(painter->matrix().map(p3) + QPointF(25, 0), transitionName());*/
167 painter->setMatrixEnabled(true);
168 QPen pen = painter->pen();
170 pen.setColor(Qt::red);
173 pen.setColor(Qt::black);
176 // expand clip rect to allow correct painting of clip border
177 exposed.setRight(exposed.right() + 1 / scale + 0.5);
178 exposed.setBottom(exposed.bottom() + 1);
179 painter->setClipRect(exposed);
180 painter->setPen(pen);
181 painter->drawRect(br);
184 int Transition::type() const {
185 return TRANSITIONWIDGET;
189 QVariant Transition::itemChange(GraphicsItemChange change, const QVariant &value) {
190 if (change == ItemPositionChange && scene()) {
191 // calculate new position.
192 QPointF newPos = value.toPointF();
193 int xpos = projectScene()->getSnapPointForPos((int) newPos.x(), KdenliveSettings::snaptopoints());
194 xpos = qMax(xpos, 0);
196 int newTrack = newPos.y() / KdenliveSettings::trackheight();
197 newTrack = qMin(newTrack, projectScene()->tracksCount() - 1);
198 newTrack = qMax(newTrack, 0);
199 newPos.setY((int)(newTrack * KdenliveSettings::trackheight() + KdenliveSettings::trackheight() / 3 * 2));
200 // Only one clip is moving
201 QRectF sceneShape = rect();
202 sceneShape.translate(newPos);
203 QList<QGraphicsItem*> items = scene()->items(sceneShape, Qt::IntersectsItemShape);
204 items.removeAll(this);
206 if (!items.isEmpty()) {
207 for (int i = 0; i < items.count(); i++) {
208 if (items.at(i)->type() == type()) {
209 // Collision! Don't move.
210 //kDebug()<<"/// COLLISION WITH ITEM: "<<items.at(i)->boundingRect()<<", POS: "<<items.at(i)->pos()<<", ME: "<<newPos;
211 QPointF otherPos = items.at(i)->pos();
212 if ((int) otherPos.y() != (int) pos().y()) return pos();
213 //kDebug()<<"//// CURRENT Y: "<<pos().y()<<", COLLIDING Y: "<<otherPos.y();
214 if (pos().x() < otherPos.x()) {
215 int npos = (static_cast < AbstractClipItem* >(items.at(i))->startPos() - m_cropDuration).frames(m_fps);
218 // get pos just after colliding clip
219 int npos = static_cast < AbstractClipItem* >(items.at(i))->endPos().frames(m_fps);
223 //kDebug()<<"// ITEM NEW POS: "<<newPos.x()<<", mapped: "<<mapToScene(newPos.x(), 0).x();
224 m_startPos = GenTime((int) newPos.x(), m_fps);
230 m_startPos = GenTime((int) newPos.x(), m_fps);
231 //kDebug()<<"// ITEM NEW POS: "<<newPos.x()<<", mapped: "<<mapToScene(newPos.x(), 0).x();
234 return QGraphicsItem::itemChange(change, value);
238 OPERATIONTYPE Transition::operationMode(QPointF pos) {
239 const double scale = projectScene()->scale();
240 double maximumOffset = 6 / scale;
242 QRectF rect = sceneBoundingRect();
243 if (qAbs((int)(pos.x() - rect.x())) < maximumOffset) return RESIZESTART;
244 else if (qAbs((int)(pos.x() - (rect.right()))) < maximumOffset) return RESIZEEND;
248 bool Transition::hasClip(const ClipItem * clip) const {
249 if (clip == m_secondClip) return true;
253 bool Transition::belongsToClip(const ClipItem * clip) const {
254 if (clip == m_referenceClip) return true;
259 Transition *Transition::clone() {
260 return new Transition::Transition(rect(), m_referenceClip, this->toXML() , m_fps);
264 Transition *Transition::reparent(ClipItem * clip) {
265 return new Transition::Transition(rect(), clip, this->toXML(), m_fps, m_referenceClip->startPos());
268 bool Transition::isValid() const {
269 return true; //(m_transitionDuration != GenTime());
272 const ClipItem *Transition::referencedClip() const {
273 return m_referenceClip;
276 QDomElement Transition::toXML() {
277 m_parameters.setAttribute("type", transitionTag());
278 //m_transitionParameters.setAttribute("inverted", invertTransition());
279 m_parameters.setAttribute("transition_atrack", track());
280 m_parameters.setAttribute("transition_btrack", m_transitionTrack);
281 m_parameters.setAttribute("start", startPos().frames(m_fps));
282 m_parameters.setAttribute("end", endPos().frames(m_fps));
283 m_parameters.setAttribute("force_track", m_forceTransitionTrack);
286 m_parameters.setAttribute("clipb_starttime", m_secondClip->startPos().frames(m_referenceClip->fps()));
287 m_parameters.setAttribute("clipb_track", transitionEndTrack());