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[kdenlive] / src / trackview.cpp
1 /***************************************************************************
2  *   Copyright (C) 2007 by Jean-Baptiste Mardelle (jb@kdenlive.org)        *
3  *                                                                         *
4  *   This program is free software; you can redistribute it and/or modify  *
5  *   it under the terms of the GNU General Public License as published by  *
6  *   the Free Software Foundation; either version 2 of the License, or     *
7  *   (at your option) any later version.                                   *
8  *                                                                         *
9  *   This program is distributed in the hope that it will be useful,       *
10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
12  *   GNU General Public License for more details.                          *
13  *                                                                         *
14  *   You should have received a copy of the GNU General Public License     *
15  *   along with this program; if not, write to the                         *
16  *   Free Software Foundation, Inc.,                                       *
17  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
18  ***************************************************************************/
19
20
21 #include "trackview.h"
22 #include "definitions.h"
23 #include "headertrack.h"
24 #include "clipitem.h"
25 #include "transition.h"
26 #include "kdenlivesettings.h"
27 #include "clipmanager.h"
28 #include "customruler.h"
29 #include "kdenlivedoc.h"
30 #include "mainwindow.h"
31 #include "customtrackview.h"
32 #include "initeffects.h"
33
34 #include <KDebug>
35 #include <KMessageBox>
36
37 #include <QScrollBar>
38
39 TrackView::TrackView(KdenliveDoc *doc, QWidget *parent) :
40         QWidget(parent),
41         m_scale(1.0),
42         m_projectTracks(0),
43         m_doc(doc)
44 {
45
46     view.setupUi(this);
47
48     m_scene = new CustomTrackScene(doc);
49     m_trackview = new CustomTrackView(doc, m_scene, parent);
50     m_trackview->scale(1, 1);
51     m_trackview->setAlignment(Qt::AlignLeft | Qt::AlignTop);
52     //m_scene->addRect(QRectF(0, 0, 100, 100), QPen(), QBrush(Qt::red));
53
54     m_ruler = new CustomRuler(doc->timecode(), m_trackview);
55     connect(m_ruler, SIGNAL(zoneMoved(int, int)), this, SIGNAL(zoneMoved(int, int)));
56     QHBoxLayout *layout = new QHBoxLayout;
57     view.ruler_frame->setLayout(layout);
58     int left_margin;
59     int right_margin;
60     layout->getContentsMargins(&left_margin, 0, &right_margin, 0);
61     layout->setContentsMargins(left_margin, 0, right_margin, 0);
62     layout->addWidget(m_ruler);
63
64     QHBoxLayout *tracksLayout = new QHBoxLayout;
65     tracksLayout->setContentsMargins(0, 0, 0, 0);
66     view.tracks_frame->setLayout(tracksLayout);
67
68     view.headers_area->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
69     view.headers_area->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
70
71     m_headersLayout = new QVBoxLayout;
72     m_headersLayout->setContentsMargins(0, 0, 0, 0);
73     m_headersLayout->setSpacing(0);
74     view.headers_container->setLayout(m_headersLayout);
75
76     connect(view.headers_area->verticalScrollBar(), SIGNAL(valueChanged(int)), m_trackview->verticalScrollBar(), SLOT(setValue(int)));
77
78     tracksLayout->addWidget(m_trackview);
79
80     connect(m_trackview->verticalScrollBar(), SIGNAL(valueChanged(int)), view.headers_area->verticalScrollBar(), SLOT(setValue(int)));
81     connect(m_trackview, SIGNAL(trackHeightChanged()), this, SLOT(slotRebuildTrackHeaders()));
82
83     parseDocument(m_doc->toXml());
84     m_doc->setSceneList();
85     connect(m_trackview, SIGNAL(cursorMoved(int, int)), m_ruler, SLOT(slotCursorMoved(int, int)));
86     connect(m_trackview->horizontalScrollBar(), SIGNAL(valueChanged(int)), m_ruler, SLOT(slotMoveRuler(int)));
87     connect(m_trackview, SIGNAL(mousePosition(int)), this, SIGNAL(mousePosition(int)));
88     connect(m_trackview, SIGNAL(transitionItemSelected(Transition*, bool)), this, SLOT(slotTransitionItemSelected(Transition*, bool)));
89     connect(m_trackview, SIGNAL(doTrackLock(int, bool)), this, SLOT(slotChangeTrackLock(int, bool)));
90
91     slotChangeZoom(m_doc->zoom());
92     slotSetZone(m_doc->zone());
93 }
94
95
96 int TrackView::duration() const
97 {
98     return m_trackview->duration();
99 }
100
101 int TrackView::tracksNumber() const
102 {
103     return m_projectTracks - 1;
104 }
105
106 int TrackView::inPoint() const
107 {
108     return m_ruler->inPoint();
109 }
110
111 int TrackView::outPoint() const
112 {
113     return m_ruler->outPoint();
114 }
115
116 void TrackView::slotSetZone(QPoint p)
117 {
118     m_ruler->setZone(p);
119 }
120
121 void TrackView::slotTransitionItemSelected(Transition *t, bool update)
122 {
123     emit transitionItemSelected(t, update);
124 }
125
126 void TrackView::setDuration(int dur)
127 {
128     m_trackview->setDuration(dur);
129     m_ruler->setDuration(dur);
130 }
131
132 void TrackView::parseDocument(QDomDocument doc)
133 {
134     //int cursorPos = 0;
135     m_documentErrors.clear();
136
137     //kDebug() << "//// DOCUMENT: " << doc.toString();
138     /*QDomNode props = doc.elementsByTagName("properties").item(0);
139     if (!props.isNull()) {
140         cursorPos = props.toElement().attribute("timeline_position").toInt();
141     }*/
142
143     // parse project tracks
144     QDomElement tractor = doc.elementsByTagName("tractor").item(0).toElement();
145     QDomNodeList tracks = doc.elementsByTagName("track");
146     QDomNodeList playlists = doc.elementsByTagName("playlist");
147     int duration = 300;
148     m_projectTracks = tracks.count();
149     int trackduration = 0;
150     QDomElement e;
151     QDomElement p;
152
153     int pos = m_projectTracks - 1;
154     m_invalidProducers.clear();
155     QDomNodeList producers = doc.elementsByTagName("producer");
156     for (int i = 0; i < producers.count(); i++) {
157         // Check for invalid producers
158         QDomNode n = producers.item(i);
159         e = n.toElement();
160
161         /*
162         // Check for invalid markup
163         QDomNodeList params = e.elementsByTagName("property");
164         for (int j = 0; j < params.count(); j++) {
165             QDomElement p = params.item(j).toElement();
166             if (p.attribute("name") == "markup") {
167          QString val = p.text().toUtf8().data();
168          kDebug()<<"//FOUND MARKUP, VAL: "<<val;
169          //e.setAttribute("value", value);
170          n.removeChild(params.item(j));
171          break;
172             }
173         }
174         */
175
176         if (e.hasAttribute("in") == false && e.hasAttribute("out") == false) continue;
177         int in = e.attribute("in").toInt();
178         int out = e.attribute("out").toInt();
179         if (in > out || in == out) {
180             // invalid producer, remove it
181             QString id = e.attribute("id");
182             m_invalidProducers.append(id);
183             m_documentErrors.append(i18n("Invalid clip producer %1\n", id));
184             doc.documentElement().removeChild(producers.at(i));
185             i--;
186         }
187     }
188
189     for (int i = 0; i < m_projectTracks; i++) {
190         e = tracks.item(i).toElement();
191         QString playlist_name = e.attribute("producer");
192         if (playlist_name != "black_track" && playlist_name != "playlistmain") {
193             // find playlist related to this track
194             p = QDomElement();
195             for (int j = 0; j < m_projectTracks; j++) {
196                 p = playlists.item(j).toElement();
197                 if (p.attribute("id") == playlist_name) break;
198             }
199             if (p.attribute("id") != playlist_name) { // then it didn't work.
200                 kDebug() << "NO PLAYLIST FOUND FOR TRACK " + pos;
201             }
202             if (e.attribute("hide") == "video") {
203                 m_doc->switchTrackVideo(i - 1, true);
204             } else if (e.attribute("hide") == "audio") {
205                 m_doc->switchTrackAudio(i - 1, true);
206             } else if (e.attribute("hide") == "both") {
207                 m_doc->switchTrackVideo(i - 1, true);
208                 m_doc->switchTrackAudio(i - 1, true);
209             }
210
211             trackduration = slotAddProjectTrack(pos, p, m_doc->isTrackLocked(i - 1));
212             pos--;
213             //kDebug() << " PRO DUR: " << trackduration << ", TRACK DUR: " << duration;
214             if (trackduration > duration) duration = trackduration;
215         } else {
216             // background black track
217             for (int j = 0; j < m_projectTracks; j++) {
218                 p = playlists.item(j).toElement();
219                 if (p.attribute("id") == playlist_name) break;
220             }
221             int black_clips = p.childNodes().count();
222             for (int i = 0; i < black_clips; i++)
223                 m_doc->loadingProgressed();
224             qApp->processEvents();
225             pos--;
226         }
227     }
228
229     // parse transitions
230     QDomNodeList transitions = doc.elementsByTagName("transition");
231
232     //kDebug() << "//////////// TIMELINE FOUND: " << projectTransitions << " transitions";
233     for (int i = 0; i < transitions.count(); i++) {
234         e = transitions.item(i).toElement();
235         QDomNodeList transitionparams = e.childNodes();
236         bool transitionAdd = true;
237         int a_track = 0;
238         int b_track = 0;
239         bool isAutomatic = false;
240         bool forceTrack = false;
241         QString mlt_geometry;
242         QString mlt_service;
243         for (int k = 0; k < transitionparams.count(); k++) {
244             p = transitionparams.item(k).toElement();
245             if (!p.isNull()) {
246                 QString paramName = p.attribute("name");
247                 // do not add audio mixing transitions
248                 if (paramName == "internal_added" && p.text() == "237") {
249                     transitionAdd = false;
250                     //kDebug() << "//  TRANSITRION " << i << " IS NOT VALID (INTERN ADDED)";
251                     //break;
252                 } else if (paramName == "a_track") a_track = p.text().toInt();
253                 else if (paramName == "b_track") b_track = p.text().toInt();
254                 else if (paramName == "mlt_service") mlt_service = p.text();
255                 else if (paramName == "geometry") mlt_geometry = p.text();
256                 else if (paramName == "automatic" && p.text() == "1") isAutomatic = true;
257                 else if (paramName == "force_track" && p.text() == "1") forceTrack = true;
258             }
259         }
260         if (transitionAdd || mlt_service != "mix") {
261             // Transition should be added to the scene
262             ItemInfo transitionInfo;
263             QString transitionId;
264             if (mlt_service == "composite") {
265                 // When adding composite transition, check if it is a wipe transition
266                 if (mlt_geometry.count(';') == 1) {
267                     mlt_geometry.remove(QChar('%'), Qt::CaseInsensitive);
268                     mlt_geometry.replace(QChar('x'), QChar(','), Qt::CaseInsensitive);
269                     QString start = mlt_geometry.section(';', 0, 0);
270                     start = start.section(':', 0, 1);
271                     start.replace(QChar(':'), QChar(','), Qt::CaseInsensitive);
272                     QString end = mlt_geometry.section('=', 1, 1);
273                     end = end.section(':', 0, 1);
274                     end.replace(QChar(':'), QChar(','), Qt::CaseInsensitive);
275                     start.append(',' + end);
276                     QStringList numbers = start.split(',', QString::SkipEmptyParts);
277                     bool isWipeTransition = true;
278                     int checkNumber;
279                     for (int i = 0; i < numbers.size(); ++i) {
280                         checkNumber = qAbs(numbers.at(i).toInt());
281                         if (checkNumber != 0 && checkNumber != 100) {
282                             isWipeTransition = false;
283                             break;
284                         }
285                     }
286                     if (isWipeTransition) transitionId = "wipe";
287                 }
288             }
289             QDomElement base = MainWindow::transitions.getEffectByTag(mlt_service, transitionId).cloneNode().toElement();
290
291             for (int k = 0; k < transitionparams.count(); k++) {
292                 p = transitionparams.item(k).toElement();
293                 if (!p.isNull()) {
294                     QString paramName = p.attribute("name");
295                     QString paramValue = p.text();
296
297                     QDomNodeList params = base.elementsByTagName("parameter");
298                     if (paramName != "a_track" && paramName != "b_track") for (int i = 0; i < params.count(); i++) {
299                             QDomElement e = params.item(i).toElement();
300                             if (!e.isNull() && e.attribute("tag") == paramName) {
301                                 if (e.attribute("type") == "double") {
302                                     QString factor = e.attribute("factor", "1");
303                                     if (factor != "1") {
304                                         double val = paramValue.toDouble() * factor.toDouble();
305                                         paramValue = QString::number(val);
306                                     }
307                                 }
308                                 e.setAttribute("value", paramValue);
309                                 break;
310                             }
311                         }
312                 }
313             }
314
315             /*QDomDocument doc;
316             doc.appendChild(doc.importNode(base, true));
317             kDebug() << "///////  TRANSITION XML: "<< doc.toString();*/
318
319             transitionInfo.startPos = GenTime(e.attribute("in").toInt(), m_doc->fps());
320             transitionInfo.endPos = GenTime(e.attribute("out").toInt() + 1, m_doc->fps());
321             transitionInfo.track = m_projectTracks - 1 - b_track;
322             //kDebug() << "///////////////   +++++++++++  ADDING TRANSITION ON TRACK: " << b_track << ", TOTAL TRKA: " << m_projectTracks;
323             if (transitionInfo.startPos >= transitionInfo.endPos) {
324                 // invalid transition, remove it.
325                 m_documentErrors.append(i18n("Removed invalid transition: %1", e.attribute("id")) + '\n');
326                 kDebug() << "///// REMOVED INVALID TRANSITION: " << e.attribute("id");
327                 tractor.removeChild(transitions.item(i));
328                 i--;
329             } else {
330                 Transition *tr = new Transition(transitionInfo, a_track, m_doc->fps(), base, isAutomatic);
331                 if (forceTrack) tr->setForcedTrack(true, a_track);
332                 m_scene->addItem(tr);
333                 if (b_track > 0 && m_doc->isTrackLocked(b_track - 1)) {
334                     tr->setItemLocked(true);
335                 }
336             }
337         }
338     }
339
340     // Add guides
341     QDomNodeList guides = doc.elementsByTagName("guide");
342     for (int i = 0; i < guides.count(); i++) {
343         e = guides.item(i).toElement();
344         const QString comment = e.attribute("comment");
345         const GenTime pos = GenTime(e.attribute("time").toDouble());
346         m_trackview->addGuide(pos, comment);
347     }
348
349     // Rebuild groups
350     QDomNodeList groups = doc.elementsByTagName("group");
351     m_trackview->loadGroups(groups);
352
353     m_trackview->setDuration(duration);
354     kDebug() << "///////////  TOTAL PROJECT DURATION: " << duration;
355     slotRebuildTrackHeaders();
356     if (!m_documentErrors.isNull()) KMessageBox::sorry(this, m_documentErrors);
357     //m_trackview->setCursorPos(cursorPos);
358     //m_scrollBox->setGeometry(0, 0, 300 * zoomFactor(), m_scrollArea->height());
359 }
360
361 void TrackView::slotDeleteClip(const QString &clipId)
362 {
363     m_trackview->deleteClip(clipId);
364 }
365
366 void TrackView::setCursorPos(int pos)
367 {
368     m_trackview->setCursorPos(pos);
369 }
370
371 void TrackView::moveCursorPos(int pos)
372 {
373     m_trackview->setCursorPos(pos, false);
374 }
375
376 void TrackView::slotChangeZoom(int factor)
377 {
378     m_doc->setZoom(factor);
379     m_ruler->setPixelPerMark(factor);
380     m_scale = (double) FRAME_SIZE / m_ruler->comboScale[factor]; // m_ruler->comboScale[m_currentZoom] /
381     m_trackview->setScale(m_scale);
382 }
383
384 int TrackView::fitZoom() const
385 {
386     int zoom = (int)((duration() + 20 / m_scale) * FRAME_SIZE / m_trackview->width());
387     int i;
388     for (i = 0; i < 13; i++)
389         if (m_ruler->comboScale[i] > zoom) break;
390     return i;
391 }
392
393 KdenliveDoc *TrackView::document()
394 {
395     return m_doc;
396 }
397
398 void TrackView::refresh()
399 {
400     m_trackview->viewport()->update();
401 }
402
403 void TrackView::slotRebuildTrackHeaders()
404 {
405     QList <TrackInfo> list = m_doc->tracksList();
406     QList<HeaderTrack *> widgets = findChildren<HeaderTrack *>();
407     for (int i = 0; i < widgets.count(); i++)
408         delete widgets.at(i);
409     int max = list.count();
410     for (int i = 0; i < max; i++) {
411         HeaderTrack *header = new HeaderTrack(i, list.at(max - i - 1), this);
412         connect(header, SIGNAL(switchTrackVideo(int)), m_trackview, SLOT(slotSwitchTrackVideo(int)));
413         connect(header, SIGNAL(switchTrackAudio(int)), m_trackview, SLOT(slotSwitchTrackAudio(int)));
414         connect(header, SIGNAL(switchTrackLock(int)), m_trackview, SLOT(slotSwitchTrackLock(int)));
415
416         connect(header, SIGNAL(deleteTrack(int)), this, SIGNAL(deleteTrack(int)));
417         connect(header, SIGNAL(insertTrack(int)), this, SIGNAL(insertTrack(int)));
418         connect(header, SIGNAL(changeTrack(int)), this, SIGNAL(changeTrack(int)));
419         m_headersLayout->addWidget(header);
420     }
421     view.headers_container->adjustSize();
422 }
423
424
425 int TrackView::slotAddProjectTrack(int ix, QDomElement xml, bool locked)
426 {
427     // parse track
428     int position = 0;
429     QDomNodeList children = xml.childNodes();
430     for (int nodeindex = 0; nodeindex < children.count(); nodeindex++) {
431         QDomNode n = children.item(nodeindex);
432         QDomElement elem = n.toElement();
433         if (elem.tagName() == "blank") {
434             position += elem.attribute("length").toInt();
435         } else if (elem.tagName() == "entry") {
436             m_doc->loadingProgressed();
437             qApp->processEvents();
438             // Found a clip
439             int in = elem.attribute("in").toInt();
440             int out = elem.attribute("out").toInt();
441             if (in > out || in == out || m_invalidProducers.contains(elem.attribute("producer"))) {
442                 m_documentErrors.append(i18n("Invalid clip removed from track %1 at %2\n", ix, position));
443                 xml.removeChild(children.at(nodeindex));
444                 nodeindex--;
445                 continue;
446             }
447             QString idString = elem.attribute("producer");
448             QString id = idString;
449             double speed = 1.0;
450             if (idString.startsWith("slowmotion")) {
451                 id = idString.section(':', 1, 1);
452                 speed = idString.section(':', 2, 2).toDouble();
453             } else id = id.section('_', 0, 0);
454             DocClipBase *clip = m_doc->clipManager()->getClipById(id);
455             if (clip == NULL) {
456                 // The clip in playlist was not listed in the kdenlive producers,
457                 // something went wrong, repair required.
458                 kWarning() << "CANNOT INSERT CLIP " << id;
459
460                 clip = getMissingProducer(id);
461                 if (!clip) {
462                     // We cannot find the producer, something is really wrong, add
463                     // placeholder color clip
464                     QDomDocument doc;
465                     QDomElement producerXml = doc.createElement("producer");
466                     doc.appendChild(producerXml);
467                     producerXml.setAttribute("colour", "0xff0000ff");
468                     producerXml.setAttribute("mlt_service", "colour");
469                     producerXml.setAttribute("length", "15000");
470                     producerXml.setAttribute("name", "INVALID");
471                     producerXml.setAttribute("type", COLOR);
472                     producerXml.setAttribute("id", id);
473                     clip = new DocClipBase(m_doc->clipManager(), doc.documentElement(), id);
474                     xml.insertBefore(producerXml, QDomNode());
475                     m_doc->clipManager()->addClip(clip);
476
477                     m_documentErrors.append(i18n("Broken clip producer %1", id) + '\n');
478                 } else {
479                     // Found correct producer
480                     m_documentErrors.append(i18n("Replaced wrong clip producer %1 with %2", id, clip->getId()) + '\n');
481                     elem.setAttribute("producer", clip->getId());
482                 }
483                 m_doc->setModified(true);
484             }
485
486             if (clip != NULL) {
487                 ItemInfo clipinfo;
488                 clipinfo.startPos = GenTime(position, m_doc->fps());
489                 clipinfo.endPos = clipinfo.startPos + GenTime(out - in + 1, m_doc->fps());
490                 clipinfo.cropStart = GenTime(in, m_doc->fps());
491                 clipinfo.track = ix;
492                 //kDebug() << "// INSERTING CLIP: " << in << "x" << out << ", track: " << ix << ", ID: " << id << ", SCALE: " << m_scale << ", FPS: " << m_doc->fps();
493                 ClipItem *item = new ClipItem(clip, clipinfo, m_doc->fps(), speed, false);
494                 if (idString.endsWith("_video")) item->setVideoOnly(true);
495                 else if (idString.endsWith("_audio")) item->setAudioOnly(true);
496                 m_scene->addItem(item);
497                 if (locked) item->setItemLocked(true);
498                 clip->addReference();
499                 position += (out - in + 1);
500
501                 // parse clip effects
502                 QDomNodeList effects = elem.childNodes();
503                 for (int ix = 0; ix < effects.count(); ix++) {
504                     QDomElement effect = effects.at(ix).toElement();
505                     if (effect.tagName() == "filter") {
506                         // add effect to clip
507                         QString effecttag;
508                         QString effectid;
509                         QString effectindex;
510                         QString ladspaEffectFile;
511                         // Get effect tag & index
512                         for (QDomNode n3 = effect.firstChild(); !n3.isNull(); n3 = n3.nextSibling()) {
513                             // parse effect parameters
514                             QDomElement effectparam = n3.toElement();
515                             if (effectparam.attribute("name") == "tag") {
516                                 effecttag = effectparam.text();
517                             } else if (effectparam.attribute("name") == "kdenlive_id") {
518                                 effectid = effectparam.text();
519                             } else if (effectparam.attribute("name") == "kdenlive_ix") {
520                                 effectindex = effectparam.text();
521                             } else if (effectparam.attribute("name") == "src") {
522                                 ladspaEffectFile = effectparam.text();
523                                 if (!QFile::exists(ladspaEffectFile)) {
524                                     // If the ladspa effect file is missing, recreate it
525                                     kDebug() << "// MISSING LADSPA FILE: " << ladspaEffectFile;
526                                     ladspaEffectFile = m_doc->getLadspaFile();
527                                     effectparam.firstChild().setNodeValue(ladspaEffectFile);
528                                     kDebug() << "// ... REPLACED WITH: " << ladspaEffectFile;
529                                 }
530                             }
531                         }
532                         //kDebug() << "+ + CLIP EFF FND: " << effecttag << ", " << effectid << ", " << effectindex;
533                         // get effect standard tags
534                         QDomElement clipeffect = MainWindow::customEffects.getEffectByTag(QString(), effectid);
535                         if (clipeffect.isNull()) clipeffect = MainWindow::videoEffects.getEffectByTag(effecttag, effectid);
536                         if (clipeffect.isNull()) clipeffect = MainWindow::audioEffects.getEffectByTag(effecttag, effectid);
537                         if (clipeffect.isNull()) {
538                             kDebug() << "///  WARNING, EFFECT: " << effecttag << ": " << effectid << " not found, removing it from project";
539                             m_documentErrors.append(i18n("Effect %1:%2 not found in MLT, it was removed from this project\n", effecttag, effectid));
540                             elem.removeChild(effects.at(ix));
541                             ix--;
542                         } else {
543                             QDomElement currenteffect = clipeffect.cloneNode().toElement();
544                             currenteffect.setAttribute("kdenlive_ix", effectindex);
545                             QDomNodeList clipeffectparams = currenteffect.childNodes();
546
547                             if (MainWindow::videoEffects.hasKeyFrames(currenteffect)) {
548                                 //kDebug() << " * * * * * * * * * * ** CLIP EFF WITH KFR FND  * * * * * * * * * * *";
549                                 // effect is key-framable, read all effects to retrieve keyframes
550                                 double factor = 0;
551                                 QString starttag;
552                                 QString endtag;
553                                 QDomNodeList params = currenteffect.elementsByTagName("parameter");
554                                 for (int i = 0; i < params.count(); i++) {
555                                     QDomElement e = params.item(i).toElement();
556                                     if (e.attribute("type") == "keyframe") {
557                                         starttag = e.attribute("starttag", "start");
558                                         endtag = e.attribute("endtag", "end");
559                                         factor = e.attribute("factor", "1").toDouble();
560                                         break;
561                                     }
562                                 }
563                                 QString keyframes;
564                                 int effectin = effect.attribute("in").toInt();
565                                 int effectout = effect.attribute("out").toInt();
566                                 double startvalue = 0;
567                                 double endvalue = 0;
568                                 for (QDomNode n3 = effect.firstChild(); !n3.isNull(); n3 = n3.nextSibling()) {
569                                     // parse effect parameters
570                                     QDomElement effectparam = n3.toElement();
571                                     if (effectparam.attribute("name") == starttag)
572                                         startvalue = effectparam.text().toDouble() * factor;
573                                     if (effectparam.attribute("name") == endtag)
574                                         endvalue = effectparam.text().toDouble() * factor;
575                                 }
576                                 // add first keyframe
577                                 keyframes.append(QString::number(effectin) + ':' + QString::number(startvalue) + ';' + QString::number(effectout) + ':' + QString::number(endvalue) + ';');
578                                 QDomNode lastParsedEffect;
579                                 ix++;
580                                 QDomNode n2 = effects.at(ix);
581                                 bool continueParsing = true;
582                                 for (; !n2.isNull() && continueParsing; n2 = n2.nextSibling()) {
583                                     // parse all effects
584                                     QDomElement kfreffect = n2.toElement();
585                                     int effectout = kfreffect.attribute("out").toInt();
586
587                                     for (QDomNode n4 = kfreffect.firstChild(); !n4.isNull(); n4 = n4.nextSibling()) {
588                                         // parse effect parameters
589                                         QDomElement subeffectparam = n4.toElement();
590                                         if (subeffectparam.attribute("name") == "kdenlive_ix" && subeffectparam.text() != effectindex) {
591                                             //We are not in the same effect, stop parsing
592                                             lastParsedEffect = n2.previousSibling();
593                                             ix--;
594                                             continueParsing = false;
595                                             break;
596                                         } else if (subeffectparam.attribute("name") == endtag) {
597                                             endvalue = subeffectparam.text().toDouble() * factor;
598                                             break;
599                                         }
600                                     }
601                                     if (continueParsing) {
602                                         keyframes.append(QString::number(effectout) + ':' + QString::number(endvalue) + ';');
603                                         ix++;
604                                     }
605                                 }
606
607                                 params = currenteffect.elementsByTagName("parameter");
608                                 for (int i = 0; i < params.count(); i++) {
609                                     QDomElement e = params.item(i).toElement();
610                                     if (e.attribute("type") == "keyframe") e.setAttribute("keyframes", keyframes);
611                                 }
612                                 if (!continueParsing) {
613                                     n2 = lastParsedEffect;
614                                 }
615                             } else {
616                                 // Check if effect has in/out points
617                                 if (effect.hasAttribute("in")) {
618                                     EffectsList::setParameter(currenteffect, "in",  effect.attribute("in"));
619                                 }
620                                 if (effect.hasAttribute("out")) {
621                                     EffectsList::setParameter(currenteffect, "out",  effect.attribute("out"));
622                                 }
623                             }
624
625                             // adjust effect parameters
626                             for (QDomNode n3 = effect.firstChild(); !n3.isNull(); n3 = n3.nextSibling()) {
627                                 // parse effect parameters
628                                 QDomElement effectparam = n3.toElement();
629                                 QString paramname = effectparam.attribute("name");
630                                 QString paramvalue = effectparam.text();
631
632
633                                 // try to find this parameter in the effect xml
634                                 QDomElement e;
635                                 for (int k = 0; k < clipeffectparams.count(); k++) {
636                                     e = clipeffectparams.item(k).toElement();
637                                     if (!e.isNull() && e.tagName() == "parameter" && e.attribute("name") == paramname) {
638                                         double factor = e.attribute("factor", "1").toDouble();
639                                         if (factor != 1) {
640                                             e.setAttribute("value", paramvalue.toDouble() * factor);
641                                         } else e.setAttribute("value", paramvalue);
642                                         break;
643                                     }
644                                 }
645                             }
646                             if (effecttag == "ladspa") {
647                                 //QString ladspaEffectFile = EffectsList::parameter(effect, "src", "property");
648
649                                 if (!QFile::exists(ladspaEffectFile)) {
650                                     // If the ladspa effect file is missing, recreate it
651                                     initEffects::ladspaEffectFile(ladspaEffectFile, currenteffect.attribute("ladspaid").toInt(), m_trackview->getLadspaParams(currenteffect));
652                                 }
653                                 currenteffect.setAttribute("src", ladspaEffectFile);
654                             }
655                             item->addEffect(currenteffect, false);
656                             item->effectsCounter();
657                         }
658                     }
659                 }
660             }
661             //m_clipList.append(clip);
662         }
663     }
664     //m_trackDuration = position;
665
666
667     //documentTracks.insert(ix, track);
668     kDebug() << "*************  ADD DOC TRACK " << ix << ", DURATION: " << position;
669     return position;
670     //track->show();
671 }
672
673 DocClipBase *TrackView::getMissingProducer(const QString id) const
674 {
675     QDomElement missingXml;
676     QDomDocument doc = m_doc->toXml();
677     QString docRoot = doc.documentElement().attribute("root");
678     if (!docRoot.endsWith('/')) docRoot.append('/');
679     QDomNodeList prods = doc.elementsByTagName("producer");
680     int maxprod = prods.count();
681     for (int i = 0; i < maxprod; i++) {
682         QDomNode m = prods.at(i);
683         QString prodId = m.toElement().attribute("id");
684         if (prodId == id) {
685             missingXml =  m.toElement();
686             break;
687         }
688     }
689     if (missingXml == QDomElement()) return NULL;
690
691     QDomNodeList params = missingXml.childNodes();
692     QString resource;
693     for (int j = 0; j < params.count(); j++) {
694         QDomElement e = params.item(j).toElement();
695         if (e.attribute("name") == "resource") {
696             resource = e.firstChild().nodeValue();
697             break;
698         }
699     }
700     // prepend westley document root if no path in clip resource and not a color clip
701     if (!resource.contains('/') && !resource.startsWith("0x")) resource.prepend(docRoot);
702     DocClipBase *missingClip = NULL;
703     if (!resource.isEmpty())
704         missingClip = m_doc->clipManager()->getClipByResource(resource);
705     return missingClip;
706 }
707
708 QGraphicsScene *TrackView::projectScene()
709 {
710     return m_scene;
711 }
712
713 CustomTrackView *TrackView::projectView()
714 {
715     return m_trackview;
716 }
717
718 void TrackView::setEditMode(const QString & editMode)
719 {
720     m_editMode = editMode;
721 }
722
723 const QString & TrackView::editMode() const
724 {
725     return m_editMode;
726 }
727
728 void TrackView::slotChangeTrackLock(int ix, bool lock)
729 {
730     QList<HeaderTrack *> widgets = findChildren<HeaderTrack *>();
731     widgets.at(ix)->setLock(lock);
732 }
733
734
735 #include "trackview.moc"