]> git.sesse.net Git - kdenlive/blob - src/trackview.cpp
SOme work on transitions, including a new wipe transition (to be improved)
[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 <QMouseEvent>
22 #include <QStylePainter>
23 #include <QScrollBar>
24
25 #include <KDebug>
26
27 #include "definitions.h"
28 #include "headertrack.h"
29 #include "trackview.h"
30 #include "clipitem.h"
31 #include "transition.h"
32 #include "kdenlivesettings.h"
33 #include "clipmanager.h"
34 #include "customruler.h"
35 #include "kdenlivedoc.h"
36 #include "mainwindow.h"
37 #include "customtrackview.h"
38
39 TrackView::TrackView(KdenliveDoc *doc, QWidget *parent)
40         : QWidget(parent), m_doc(doc), m_scale(1.0), m_projectTracks(0), m_currentZoom(4) {
41
42     view = new Ui::TimeLine_UI();
43     view->setupUi(this);
44
45     m_scene = new QGraphicsScene();
46     m_trackview = new CustomTrackView(doc, m_scene, parent);
47     m_trackview->scale(1, 1);
48     m_trackview->setAlignment(Qt::AlignLeft | Qt::AlignTop);
49     //m_scene->addRect(QRectF(0, 0, 100, 100), QPen(), QBrush(Qt::red));
50
51     m_ruler = new CustomRuler(doc->timecode(), m_trackview);
52     QHBoxLayout *layout = new QHBoxLayout;
53     view->ruler_frame->setLayout(layout);
54     int left_margin;
55     int right_margin;
56     layout->getContentsMargins(&left_margin, 0, &right_margin, 0);
57     layout->setContentsMargins(left_margin, 0, right_margin, 0);
58     layout->addWidget(m_ruler);
59
60     QHBoxLayout *tracksLayout = new QHBoxLayout;
61     tracksLayout->setContentsMargins(0, 0, 0, 0);
62     view->tracks_frame->setLayout(tracksLayout);
63
64     view->headers_area->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
65     view->headers_area->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
66
67     m_headersLayout = new QVBoxLayout;
68     m_headersLayout->setContentsMargins(0, 0, 0, 0);
69     m_headersLayout->setSpacing(0);
70     view->headers_container->setLayout(m_headersLayout);
71
72     connect(view->headers_area->verticalScrollBar(), SIGNAL(valueChanged(int)), m_trackview->verticalScrollBar(), SLOT(setValue(int)));
73
74     tracksLayout->addWidget(m_trackview);
75
76     connect(m_trackview->verticalScrollBar(), SIGNAL(valueChanged(int)), view->headers_area->verticalScrollBar(), SLOT(setValue(int)));
77     connect(m_trackview, SIGNAL(trackHeightChanged()), this, SLOT(slotRebuildTrackHeaders()));
78
79     parseDocument(doc->toXml());
80
81     connect(m_trackview, SIGNAL(cursorMoved(int, int)), m_ruler, SLOT(slotCursorMoved(int, int)));
82     connect(m_trackview->horizontalScrollBar(), SIGNAL(valueChanged(int)), m_ruler, SLOT(slotMoveRuler(int)));
83     connect(m_trackview, SIGNAL(mousePosition(int)), this, SIGNAL(mousePosition(int)));
84     connect(m_trackview, SIGNAL(clipItemSelected(ClipItem*)), this, SLOT(slotClipItemSelected(ClipItem*)));
85     connect(m_trackview, SIGNAL(transitionItemSelected(Transition*)), this, SLOT(slotTransitionItemSelected(Transition*)));
86     slotChangeZoom(m_currentZoom);
87 }
88
89 int TrackView::currentZoom() const {
90     return m_currentZoom;
91 }
92
93 int TrackView::duration() const {
94     return m_trackview->duration();
95 }
96
97 int TrackView::tracksNumber() const {
98     return m_projectTracks;
99 }
100
101 int TrackView::inPoint() const {
102     return m_ruler->inPoint();
103 }
104
105 int TrackView::outPoint() const {
106     return m_ruler->outPoint();
107 }
108
109 void TrackView::slotClipItemSelected(ClipItem*c) {
110     emit clipItemSelected(c);
111 }
112
113 void TrackView::slotTransitionItemSelected(Transition *t) {
114     emit transitionItemSelected(t);
115 }
116
117 void TrackView::setDuration(int dur) {
118     m_trackview->setDuration(dur);
119     m_ruler->setDuration(dur);
120 }
121
122 void TrackView::parseDocument(QDomDocument doc) {
123     int cursorPos = 0;
124     // kDebug() << "//// DOCUMENT: " << doc.toString();
125     QDomNode props = doc.elementsByTagName("properties").item(0);
126     if (!props.isNull()) {
127         cursorPos = props.toElement().attribute("timeline_position").toInt();
128     }
129
130     // parse project tracks
131     QDomNodeList tracks = doc.elementsByTagName("track");
132     QDomNodeList playlists = doc.elementsByTagName("playlist");
133     int duration = 300;
134     m_projectTracks = tracks.count();
135     int trackduration = 0;
136     QDomElement e;
137     QDomElement p;
138     bool videotrack;
139
140     int pos = m_projectTracks - 1;
141
142     for (int i = 0; i < m_projectTracks; i++) {
143         e = tracks.item(i).toElement();
144         QString playlist_name = e.attribute("producer");
145         if (playlist_name != "black_track" && playlist_name != "playlistmain") {
146             // find playlist related to this track
147             p = QDomElement();
148             for (int j = 0; j < m_projectTracks; j++) {
149                 p = playlists.item(j).toElement();
150                 if (p.attribute("id") == playlist_name) break;
151             }
152             videotrack = (e.attribute("hide") != "video");
153             trackduration = slotAddProjectTrack(pos, p, videotrack);
154             pos--;
155             //kDebug() << " PRO DUR: " << trackduration << ", TRACK DUR: " << duration;
156             if (trackduration > duration) duration = trackduration;
157         } else {
158             // background black track
159             for (int j = 0; j < m_projectTracks; j++) {
160                 p = playlists.item(j).toElement();
161                 if (p.attribute("id") == playlist_name) break;
162             }
163             int black_clips = p.childNodes().count();
164             for (int i = 0; i < black_clips; i++)
165                 m_doc->loadingProgressed();
166             qApp->processEvents();
167             pos--;
168         }
169     }
170
171     // parse transitions
172     QDomNodeList transitions = doc.elementsByTagName("transition");
173     int projectTransitions = transitions.count();
174     //kDebug() << "//////////// TIMELINE FOUND: " << projectTransitions << " transitions";
175     for (int i = 0; i < projectTransitions; i++) {
176         e = transitions.item(i).toElement();
177         QDomNodeList transitionparams = e.childNodes();
178         bool transitionAdd = true;
179         int a_track = 0;
180         int b_track = 0;
181         QString mlt_service;
182         for (int k = 0; k < transitionparams.count(); k++) {
183             p = transitionparams.item(k).toElement();
184             if (!p.isNull()) {
185                 QString paramName = p.attribute("name");
186                 // do not add audio mixing transitions
187                 if (paramName == "internal_added" && p.text() == "237") {
188                     transitionAdd = false;
189                     //kDebug() << "//  TRANSITRION " << i << " IS NOT VALID (INTERN ADDED)";
190                     break;
191                 } else if (paramName == "a_track") a_track = p.text().toInt();
192                 else if (paramName == "b_track") b_track = m_projectTracks - 1 - p.text().toInt();
193                 else if (paramName == "mlt_service") mlt_service = p.text();
194             }
195         }
196         if (transitionAdd) {
197             // Transition should be added to the scene
198             ItemInfo transitionInfo;
199             QDomElement base = MainWindow::transitions.getEffectByTag(mlt_service);
200
201             for (int k = 0; k < transitionparams.count(); k++) {
202                 p = transitionparams.item(k).toElement();
203                 if (!p.isNull()) {
204                     QString paramName = p.attribute("name");
205                     QString paramValue = p.text();
206
207                     QDomNodeList params = base.elementsByTagName("parameter");
208                     if (paramName != "a_track" && paramName != "b_track") for (int i = 0; i < params.count(); i++) {
209                             QDomElement e = params.item(i).toElement();
210                             if (!e.isNull() && e.attribute("tag") == paramName) {
211                                 if (e.attribute("type") == "double") {
212                                     QString factor = e.attribute("factor");
213                                     if (!factor.isEmpty()) {
214                                         double val = paramValue.toDouble() * factor.toDouble();
215                                         paramValue = QString::number(val);
216                                     }
217                                 }
218                                 e.setAttribute("value", paramValue);
219                                 break;
220                             }
221                         }
222                 }
223             }
224
225             /*QDomDocument doc;
226             doc.appendChild(doc.importNode(base, true));
227             kDebug() << "///////  TRANSITION XML: "<< doc.toString();*/
228
229             transitionInfo.startPos = GenTime(e.attribute("in").toInt(), m_doc->fps());
230             transitionInfo.endPos = GenTime(e.attribute("out").toInt(), m_doc->fps());
231             transitionInfo.track = b_track;
232             //kDebug() << "///////////////   +++++++++++  ADDING TRANSITION ON TRACK: " << b_track << ", TOTAL TRKA: " << m_projectTracks;
233             Transition *tr = new Transition(transitionInfo, a_track, m_scale, m_doc->fps(), base);
234             m_scene->addItem(tr);
235         }
236     }
237
238
239     m_trackview->setDuration(duration);
240     kDebug() << "///////////  TOTAL PROJECT DURATION: " << duration;
241     slotRebuildTrackHeaders();
242     //m_trackview->setCursorPos(cursorPos);
243     //m_scrollBox->setGeometry(0, 0, 300 * zoomFactor(), m_scrollArea->height());
244 }
245
246 void TrackView::slotDeleteClip(int clipId) {
247     m_trackview->deleteClip(clipId);
248 }
249
250 void TrackView::setCursorPos(int pos) {
251     m_trackview->setCursorPos(pos);
252 }
253
254 void TrackView::moveCursorPos(int pos) {
255     m_trackview->setCursorPos(pos, false);
256 }
257
258 void TrackView::slotChangeZoom(int factor) {
259
260     m_ruler->setPixelPerMark(factor);
261     m_scale = (double) FRAME_SIZE / m_ruler->comboScale[factor]; // m_ruler->comboScale[m_currentZoom] /
262     m_currentZoom = factor;
263     m_trackview->setScale(m_scale);
264 }
265
266 int TrackView::fitZoom() const {
267     int zoom = (int)((duration() + 20 / m_scale) * FRAME_SIZE / m_trackview->width());
268     int i;
269     for (i = 0; i < 13; i++)
270         if (m_ruler->comboScale[i] > zoom) break;
271     return i;
272 }
273
274 const double TrackView::zoomFactor() const {
275     return m_scale;
276 }
277
278 const int TrackView::mapLocalToValue(int x) const {
279     return (int)(x * zoomFactor());
280 }
281
282 KdenliveDoc *TrackView::document() {
283     return m_doc;
284 }
285
286 void TrackView::refresh() {
287     m_trackview->viewport()->update();
288 }
289
290 void TrackView::slotRebuildTrackHeaders() {
291     QList <TrackInfo> list = m_trackview->tracksList();
292     QList<HeaderTrack *> widgets = this->findChildren<HeaderTrack *>();
293     for (int i = 0; i < widgets.count(); i++)
294         delete widgets.at(i);
295     int max = list.count();
296     for (int i = 0; i < max; i++) {
297         HeaderTrack *header = new HeaderTrack(i, list.at(max - i - 1), this);
298         connect(header, SIGNAL(switchTrackVideo(int)), m_trackview, SLOT(slotSwitchTrackVideo(int)));
299         connect(header, SIGNAL(switchTrackAudio(int)), m_trackview, SLOT(slotSwitchTrackAudio(int)));
300         m_headersLayout->addWidget(header);
301     }
302     view->headers_container->adjustSize();
303 }
304
305 int TrackView::slotAddProjectTrack(int ix, QDomElement xml, bool videotrack) {
306     TrackInfo info;
307
308     if (videotrack) {
309         info.type = VIDEOTRACK;
310         info.isMute = false;
311         info.isBlind = false;
312     } else {
313         info.type = AUDIOTRACK;
314         info.isMute = false;
315         info.isBlind = false;
316     }
317
318     m_trackview->addTrack(info);
319
320     int trackTop = KdenliveSettings::trackheight() * ix;
321     // parse track
322     int position = 0;
323     for (QDomNode n = xml.firstChild(); !n.isNull(); n = n.nextSibling()) {
324         QDomElement elem = n.toElement();
325         if (elem.tagName() == "blank") {
326             position += elem.attribute("length").toInt();
327         } else if (elem.tagName() == "entry") {
328             m_doc->loadingProgressed();
329             qApp->processEvents();
330             // Found a clip
331             int in = elem.attribute("in").toInt();
332             int id = elem.attribute("producer").toInt();
333             DocClipBase *clip = m_doc->clipManager()->getClipById(id);
334             if (clip != NULL) {
335                 int out = elem.attribute("out").toInt();
336
337                 ItemInfo clipinfo;
338                 clipinfo.startPos = GenTime(position, m_doc->fps());
339                 clipinfo.endPos = clipinfo.startPos + GenTime(out - in, m_doc->fps());
340                 clipinfo.track = ix;
341                 //kDebug() << "// INSERTING CLIP: " << in << "x" << out << ", track: " << ix << ", ID: " << id << ", SCALE: " << m_scale << ", FPS: " << m_doc->fps();
342                 ClipItem *item = new ClipItem(clip, clipinfo, GenTime(in, m_doc->fps()), m_scale, m_doc->fps());
343                 m_scene->addItem(item);
344                 position += (out - in);
345
346                 // parse clip effects
347                 for (QDomNode n2 = elem.firstChild(); !n2.isNull(); n2 = n2.nextSibling()) {
348                     QDomElement effect = n2.toElement();
349                     if (effect.tagName() == "filter") {
350                         // add effect to clip
351                         QString effecttag;
352                         QString effectindex;
353                         // Get effect tag & index
354                         for (QDomNode n3 = effect.firstChild(); !n3.isNull(); n3 = n3.nextSibling()) {
355                             // parse effect parameters
356                             QDomElement effectparam = n3.toElement();
357                             if (effectparam.attribute("name") == "tag") {
358                                 effecttag = effectparam.text();
359                             }
360                             if (effectparam.attribute("name") == "kdenlive_ix") {
361                                 effectindex = effectparam.text();
362                             }
363                         }
364
365                         // get effect standard tags
366                         QDomElement clipeffect = MainWindow::videoEffects.getEffectByTag(effecttag);
367                         clipeffect.setAttribute("kdenlive_ix", effectindex);
368                         QDomNodeList clipeffectparams = clipeffect.childNodes();
369
370                         // adjust effect parameters
371                         for (QDomNode n3 = effect.firstChild(); !n3.isNull(); n3 = n3.nextSibling()) {
372                             // parse effect parameters
373                             QDomElement effectparam = n3.toElement();
374                             QString paramname = effectparam.attribute("name");
375                             QString paramvalue = effectparam.text();
376
377                             // try to find this parameter in the effect xml
378                             QDomElement e;
379                             for (int k = 0; k < clipeffectparams.count(); k++) {
380                                 e = clipeffectparams.item(k).toElement();
381                                 if (!e.isNull() && e.tagName() == "parameter" && e.attribute("name") == paramname) {
382                                     e.setAttribute("value", paramvalue);
383                                     break;
384                                 }
385                             }
386                         }
387                         item->addEffect(clipeffect, false);
388                     }
389                 }
390
391             } else kWarning() << "CANNOT INSERT CLIP " << id;
392             //m_clipList.append(clip);
393         }
394     }
395     //m_trackDuration = position;
396
397
398     //documentTracks.insert(ix, track);
399     kDebug() << "*************  ADD DOC TRACK " << ix << ", DURATION: " << position;
400     return position;
401     //track->show();
402 }
403
404 QGraphicsScene *TrackView::projectScene() {
405     return m_scene;
406 }
407
408 CustomTrackView *TrackView::projectView() {
409     return m_trackview;
410 }
411
412 void TrackView::setEditMode(const QString & editMode) {
413     m_editMode = editMode;
414 }
415
416 const QString & TrackView::editMode() const {
417     return m_editMode;
418 }
419
420 #include "trackview.moc"