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[kdenlive] / src / trackview.cpp
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+/***************************************************************************
+ *   Copyright (C) 2007 by Jean-Baptiste Mardelle (jb@kdenlive.org)        *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
+ ***************************************************************************/
 
-#include <QMouseEvent>
-#include <QStylePainter>
 
-#include <KDebug>
+#include <QScrollBar>
 
+#include <KDebug>
+#include <KMessageBox>
 
+#include "definitions.h"
+#include "headertrack.h"
 #include "trackview.h"
+#include "clipitem.h"
+#include "transition.h"
+#include "kdenlivesettings.h"
+#include "clipmanager.h"
+#include "customruler.h"
+#include "kdenlivedoc.h"
+#include "mainwindow.h"
+#include "customtrackview.h"
+#include "initeffects.h"
 
 TrackView::TrackView(KdenliveDoc *doc, QWidget *parent)
-    : QWidget(parent), m_doc(doc)
-{
-  view = new Ui::TimeLine_UI();
-  view->setupUi(this);
-  m_ruler = new CustomRuler(doc->timecode());
-  QVBoxLayout *layout = new QVBoxLayout;
-  layout->addWidget(m_ruler);
-  view->ruler_frame->setLayout(layout);
+        : QWidget(parent), m_doc(doc), m_scale(1.0), m_projectTracks(0) {
+
+    view = new Ui::TimeLine_UI();
+    view->setupUi(this);
+
+    m_scene = new CustomTrackScene(doc);
+    m_trackview = new CustomTrackView(doc, m_scene, parent);
+    m_trackview->scale(1, 1);
+    m_trackview->setAlignment(Qt::AlignLeft | Qt::AlignTop);
+    //m_scene->addRect(QRectF(0, 0, 100, 100), QPen(), QBrush(Qt::red));
+
+    m_ruler = new CustomRuler(doc->timecode(), m_trackview);
+    connect(m_ruler, SIGNAL(zoneMoved(int, int)), this, SIGNAL(zoneMoved(int, int)));
+    QHBoxLayout *layout = new QHBoxLayout;
+    view->ruler_frame->setLayout(layout);
+    int left_margin;
+    int right_margin;
+    layout->getContentsMargins(&left_margin, 0, &right_margin, 0);
+    layout->setContentsMargins(left_margin, 0, right_margin, 0);
+    layout->addWidget(m_ruler);
+
+    QHBoxLayout *tracksLayout = new QHBoxLayout;
+    tracksLayout->setContentsMargins(0, 0, 0, 0);
+    view->tracks_frame->setLayout(tracksLayout);
+
+    view->headers_area->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+    view->headers_area->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+
+    m_headersLayout = new QVBoxLayout;
+    m_headersLayout->setContentsMargins(0, 0, 0, 0);
+    m_headersLayout->setSpacing(0);
+    view->headers_container->setLayout(m_headersLayout);
+
+    connect(view->headers_area->verticalScrollBar(), SIGNAL(valueChanged(int)), m_trackview->verticalScrollBar(), SLOT(setValue(int)));
+
+    tracksLayout->addWidget(m_trackview);
+
+    connect(m_trackview->verticalScrollBar(), SIGNAL(valueChanged(int)), view->headers_area->verticalScrollBar(), SLOT(setValue(int)));
+    connect(m_trackview, SIGNAL(trackHeightChanged()), this, SLOT(slotRebuildTrackHeaders()));
+
+    parseDocument(m_doc->toXml());
+
+    connect(m_trackview, SIGNAL(cursorMoved(int, int)), m_ruler, SLOT(slotCursorMoved(int, int)));
+    connect(m_trackview->horizontalScrollBar(), SIGNAL(valueChanged(int)), m_ruler, SLOT(slotMoveRuler(int)));
+    connect(m_trackview, SIGNAL(mousePosition(int)), this, SIGNAL(mousePosition(int)));
+    connect(m_trackview, SIGNAL(transitionItemSelected(Transition*, bool)), this, SLOT(slotTransitionItemSelected(Transition*, bool)));
+    slotChangeZoom(m_doc->zoom());
+    slotSetZone(m_doc->zone());
+}
+
+
+int TrackView::duration() const {
+    return m_trackview->duration();
+}
+
+int TrackView::tracksNumber() const {
+    return m_projectTracks - 1;
+}
+
+int TrackView::inPoint() const {
+    return m_ruler->inPoint();
+}
 
-  connect(view->horizontalSlider, SIGNAL(valueChanged ( int )), this, SLOT(slotChangeZoom( int )));
+int TrackView::outPoint() const {
+    return m_ruler->outPoint();
 }
 
-void TrackView::slotChangeZoom(int factor)
-{
-  m_ruler->setPixelPerMark(factor);
+void TrackView::slotSetZone(QPoint p) {
+    m_ruler->setZone(p);
 }
 
-KdenliveDoc *TrackView::document()
-{
-  return m_doc;
+void TrackView::slotTransitionItemSelected(Transition *t, bool update) {
+    emit transitionItemSelected(t, update);
 }
 
+void TrackView::setDuration(int dur) {
+    m_trackview->setDuration(dur);
+    m_ruler->setDuration(dur);
+}
+
+void TrackView::parseDocument(QDomDocument doc) {
+    int cursorPos = 0;
+    m_documentErrors = QString();
+    // kDebug() << "//// DOCUMENT: " << doc.toString();
+    /*QDomNode props = doc.elementsByTagName("properties").item(0);
+    if (!props.isNull()) {
+        cursorPos = props.toElement().attribute("timeline_position").toInt();
+    }*/
+
+    // parse project tracks
+    QDomNodeList tracks = doc.elementsByTagName("track");
+    QDomNodeList playlists = doc.elementsByTagName("playlist");
+    int duration = 300;
+    m_projectTracks = tracks.count();
+    int trackduration = 0;
+    QDomElement e;
+    QDomElement p;
+
+    int pos = m_projectTracks - 1;
+
+
+    for (int i = 0; i < m_projectTracks; i++) {
+        e = tracks.item(i).toElement();
+        QString playlist_name = e.attribute("producer");
+        if (playlist_name != "black_track" && playlist_name != "playlistmain") {
+            // find playlist related to this track
+            p = QDomElement();
+            for (int j = 0; j < m_projectTracks; j++) {
+                p = playlists.item(j).toElement();
+                if (p.attribute("id") == playlist_name) break;
+            }
+            if (e.attribute("hide") == "video") {
+                m_doc->switchTrackVideo(i - 1, true);
+            } else if (e.attribute("hide") == "audio") {
+                m_doc->switchTrackAudio(i - 1, true);
+            } else if (e.attribute("hide") == "both") {
+                m_doc->switchTrackVideo(i - 1, true);
+                m_doc->switchTrackAudio(i - 1, true);
+            }
+            trackduration = slotAddProjectTrack(pos, p);
+            pos--;
+            //kDebug() << " PRO DUR: " << trackduration << ", TRACK DUR: " << duration;
+            if (trackduration > duration) duration = trackduration;
+        } else {
+            // background black track
+            for (int j = 0; j < m_projectTracks; j++) {
+                p = playlists.item(j).toElement();
+                if (p.attribute("id") == playlist_name) break;
+            }
+            int black_clips = p.childNodes().count();
+            for (int i = 0; i < black_clips; i++)
+                m_doc->loadingProgressed();
+            qApp->processEvents();
+            pos--;
+        }
+    }
+
+    // parse transitions
+    QDomNodeList transitions = doc.elementsByTagName("transition");
+    int projectTransitions = transitions.count();
+    //kDebug() << "//////////// TIMELINE FOUND: " << projectTransitions << " transitions";
+    for (int i = 0; i < projectTransitions; i++) {
+        e = transitions.item(i).toElement();
+        QDomNodeList transitionparams = e.childNodes();
+        bool transitionAdd = true;
+        int a_track = 0;
+        int b_track = 0;
+        bool isAutomatic = false;
+        bool forceTrack = false;
+        QString mlt_geometry;
+        QString mlt_service;
+        for (int k = 0; k < transitionparams.count(); k++) {
+            p = transitionparams.item(k).toElement();
+            if (!p.isNull()) {
+                QString paramName = p.attribute("name");
+                // do not add audio mixing transitions
+                if (paramName == "internal_added" && p.text() == "237") {
+                    transitionAdd = false;
+                    //kDebug() << "//  TRANSITRION " << i << " IS NOT VALID (INTERN ADDED)";
+                    //break;
+                } else if (paramName == "a_track") a_track = p.text().toInt();
+                else if (paramName == "b_track") b_track = p.text().toInt();
+                else if (paramName == "mlt_service") mlt_service = p.text();
+                else if (paramName == "geometry") mlt_geometry = p.text();
+                else if (paramName == "automatic" && p.text() == "1") isAutomatic = true;
+                else if (paramName == "force_track" && p.text() == "1") forceTrack = true;
+            }
+        }
+        if (transitionAdd || mlt_service != "mix") {
+            // Transition should be added to the scene
+            ItemInfo transitionInfo;
+            QString transitionId;
+            if (mlt_service == "composite") {
+                // When adding composite transition, check if it is a wipe transition
+                if (mlt_geometry == "0%,0%:100%x100%") transitionId = "alphatransparency";
+                else if (mlt_geometry.count(';') == 1) {
+                    mlt_geometry.remove(QChar('%'), Qt::CaseInsensitive);
+                    mlt_geometry.replace(QChar('x'), QChar(','), Qt::CaseInsensitive);
+                    QString start = mlt_geometry.section(';', 0, 0);
+                    start = start.section(':', 0, 1);
+                    start.replace(QChar(':'), QChar(','), Qt::CaseInsensitive);
+                    QString end = mlt_geometry.section('=', 1, 1);
+                    end = end.section(':', 0, 1);
+                    end.replace(QChar(':'), QChar(','), Qt::CaseInsensitive);
+                    start.append(',' + end);
+                    QStringList numbers = start.split(',', QString::SkipEmptyParts);
+                    bool isWipeTransition = true;
+                    int checkNumber;
+                    for (int i = 0; i < numbers.size(); ++i) {
+                        checkNumber = qAbs(numbers.at(i).toInt());
+                        if (checkNumber != 0 && checkNumber != 100) {
+                            isWipeTransition = false;
+                            break;
+                        }
+                    }
+                    if (isWipeTransition) transitionId = "wipe";
+                }
+            }
+            QDomElement base = MainWindow::transitions.getEffectByTag(mlt_service, transitionId).cloneNode().toElement();
+
+            for (int k = 0; k < transitionparams.count(); k++) {
+                p = transitionparams.item(k).toElement();
+                if (!p.isNull()) {
+                    QString paramName = p.attribute("name");
+                    QString paramValue = p.text();
+
+                    QDomNodeList params = base.elementsByTagName("parameter");
+                    if (paramName != "a_track" && paramName != "b_track") for (int i = 0; i < params.count(); i++) {
+                            QDomElement e = params.item(i).toElement();
+                            if (!e.isNull() && e.attribute("tag") == paramName) {
+                                if (e.attribute("type") == "double") {
+                                    QString factor = e.attribute("factor", "1");
+                                    if (factor != "1") {
+                                        double val = paramValue.toDouble() * factor.toDouble();
+                                        paramValue = QString::number(val);
+                                    }
+                                }
+                                e.setAttribute("value", paramValue);
+                                break;
+                            }
+                        }
+                }
+            }
+
+            /*QDomDocument doc;
+            doc.appendChild(doc.importNode(base, true));
+            kDebug() << "///////  TRANSITION XML: "<< doc.toString();*/
+
+            transitionInfo.startPos = GenTime(e.attribute("in").toInt(), m_doc->fps());
+            transitionInfo.endPos = GenTime(e.attribute("out").toInt() + 1, m_doc->fps());
+            transitionInfo.track = m_projectTracks - 1 - b_track;
+            //kDebug() << "///////////////   +++++++++++  ADDING TRANSITION ON TRACK: " << b_track << ", TOTAL TRKA: " << m_projectTracks;
+            Transition *tr = new Transition(transitionInfo, a_track, m_doc->fps(), base, isAutomatic);
+            if (forceTrack) tr->setForcedTrack(true, a_track);
+            m_scene->addItem(tr);
+        }
+    }
+
+    // Add guides
+    QDomNodeList guides = doc.elementsByTagName("guide");
+    for (int i = 0; i < guides.count(); i++) {
+        e = guides.item(i).toElement();
+        const QString comment = e.attribute("comment");
+        const GenTime pos = GenTime(e.attribute("time").toDouble());
+        m_trackview->addGuide(pos, comment);
+    }
+
+    m_trackview->setDuration(duration);
+    kDebug() << "///////////  TOTAL PROJECT DURATION: " << duration;
+    slotRebuildTrackHeaders();
+    if (!m_documentErrors.isNull()) KMessageBox::sorry(this, m_documentErrors);
+    //m_trackview->setCursorPos(cursorPos);
+    //m_scrollBox->setGeometry(0, 0, 300 * zoomFactor(), m_scrollArea->height());
+}
+
+void TrackView::slotDeleteClip(const QString &clipId) {
+    m_trackview->deleteClip(clipId);
+}
+
+void TrackView::setCursorPos(int pos) {
+    m_trackview->setCursorPos(pos);
+}
+
+void TrackView::moveCursorPos(int pos) {
+    m_trackview->setCursorPos(pos, false);
+}
+
+void TrackView::slotChangeZoom(int factor) {
+    m_doc->setZoom(factor);
+    m_ruler->setPixelPerMark(factor);
+    m_scale = (double) FRAME_SIZE / m_ruler->comboScale[factor]; // m_ruler->comboScale[m_currentZoom] /
+    m_trackview->setScale(m_scale);
+}
+
+int TrackView::fitZoom() const {
+    int zoom = (int)((duration() + 20 / m_scale) * FRAME_SIZE / m_trackview->width());
+    int i;
+    for (i = 0; i < 13; i++)
+        if (m_ruler->comboScale[i] > zoom) break;
+    return i;
+}
+
+const double TrackView::zoomFactor() const {
+    return m_scale;
+}
+
+const int TrackView::mapLocalToValue(int x) const {
+    return (int)(x * zoomFactor());
+}
+
+KdenliveDoc *TrackView::document() {
+    return m_doc;
+}
+
+void TrackView::refresh() {
+    m_trackview->viewport()->update();
+}
+
+void TrackView::slotRebuildTrackHeaders() {
+    QList <TrackInfo> list = m_doc->tracksList();
+    QList<HeaderTrack *> widgets = this->findChildren<HeaderTrack *>();
+    for (int i = 0; i < widgets.count(); i++)
+        delete widgets.at(i);
+    int max = list.count();
+    for (int i = 0; i < max; i++) {
+        HeaderTrack *header = new HeaderTrack(i, list.at(max - i - 1), this);
+        connect(header, SIGNAL(switchTrackVideo(int)), m_trackview, SLOT(slotSwitchTrackVideo(int)));
+        connect(header, SIGNAL(switchTrackAudio(int)), m_trackview, SLOT(slotSwitchTrackAudio(int)));
+
+        connect(header, SIGNAL(deleteTrack(int)), this, SIGNAL(deleteTrack(int)));
+        connect(header, SIGNAL(insertTrack(int)), this, SIGNAL(insertTrack(int)));
+        connect(header, SIGNAL(changeTrack(int)), this, SIGNAL(changeTrack(int)));
+        m_headersLayout->addWidget(header);
+    }
+    view->headers_container->adjustSize();
+}
+
+
+int TrackView::slotAddProjectTrack(int ix, QDomElement xml) {
+    int trackTop = KdenliveSettings::trackheight() * ix;
+    // parse track
+    int position = 0;
+    for (QDomNode n = xml.firstChild(); !n.isNull(); n = n.nextSibling()) {
+        QDomElement elem = n.toElement();
+        if (elem.tagName() == "blank") {
+            position += elem.attribute("length").toInt();
+        } else if (elem.tagName() == "entry") {
+            m_doc->loadingProgressed();
+            qApp->processEvents();
+            // Found a clip
+            int in = elem.attribute("in").toInt();
+            QString idString = elem.attribute("producer");
+            QString id = idString;
+            bool hasSpeedAttribute = false;
+            double speed;
+            if (idString.startsWith("slowmotion")) {
+                hasSpeedAttribute = true;
+                id = idString.section(":", 1, 1);
+                speed = idString.section(":", 2, 2).toDouble();
+            } else id = id.section('_', 0, 0);
+            DocClipBase *clip = m_doc->clipManager()->getClipById(id);
+            if (clip != NULL) {
+                int out = elem.attribute("out").toInt();
+
+                ItemInfo clipinfo;
+                clipinfo.startPos = GenTime(position, m_doc->fps());
+                clipinfo.endPos = clipinfo.startPos + GenTime(out - in + 1, m_doc->fps());
+                clipinfo.cropStart = GenTime(in, m_doc->fps());
+                clipinfo.track = ix;
+                //kDebug() << "// INSERTING CLIP: " << in << "x" << out << ", track: " << ix << ", ID: " << id << ", SCALE: " << m_scale << ", FPS: " << m_doc->fps();
+                ClipItem *item = new ClipItem(clip, clipinfo, m_doc->fps(), false);
+                if (hasSpeedAttribute) item->setSpeed(speed);
+                m_scene->addItem(item);
+                clip->addReference();
+                position += (out - in + 1);
+
+                // parse clip effects
+                QDomNodeList effects = elem.childNodes();
+                for (int ix = 0; ix < effects.count(); ix++) {
+                    QDomElement effect = effects.at(ix).toElement();
+                    if (effect.tagName() == "filter") {
+                        // add effect to clip
+                        QString effecttag;
+                        QString effectid;
+                        QString effectindex;
+                        QString ladspaEffectFile;
+                        // Get effect tag & index
+                        for (QDomNode n3 = effect.firstChild(); !n3.isNull(); n3 = n3.nextSibling()) {
+                            // parse effect parameters
+                            QDomElement effectparam = n3.toElement();
+                            if (effectparam.attribute("name") == "tag") {
+                                effecttag = effectparam.text();
+                            } else if (effectparam.attribute("name") == "kdenlive_id") {
+                                effectid = effectparam.text();
+                            } else if (effectparam.attribute("name") == "kdenlive_ix") {
+                                effectindex = effectparam.text();
+                            } else if (effectparam.attribute("name") == "src") {
+                                ladspaEffectFile = effectparam.text();
+                                if (!QFile::exists(ladspaEffectFile)) {
+                                    // If the ladspa effect file is missing, recreate it
+                                    kDebug() << "// MISSING LADSPA FILE: " << ladspaEffectFile;
+                                    ladspaEffectFile = m_doc->getLadspaFile();
+                                    effectparam.firstChild().setNodeValue(ladspaEffectFile);
+                                    kDebug() << "// ... REPLACED WITH: " << ladspaEffectFile;
+                                }
+                            }
+                        }
+                        //kDebug() << "+ + CLIP EFF FND: " << effecttag << ", " << effectid << ", " << effectindex;
+                        // get effect standard tags
+                        QDomElement clipeffect = MainWindow::customEffects.getEffectByTag(QString(), effectid);
+                        if (clipeffect.isNull()) clipeffect = MainWindow::videoEffects.getEffectByTag(effecttag, effectid);
+                        if (clipeffect.isNull()) clipeffect = MainWindow::audioEffects.getEffectByTag(effecttag, effectid);
+                        if (clipeffect.isNull()) {
+                            kDebug() << "///  WARNING, EFFECT: " << effecttag << ": " << effectid << " not found, removing it from project";
+                            m_documentErrors.append(i18n("Effect %1:%2 not found in MLT, it was removed from this project\n", effecttag, effectid));
+                            elem.removeChild(effects.at(ix));
+                            ix--;
+                        } else {
+                            QDomElement currenteffect = clipeffect.cloneNode().toElement();
+                            currenteffect.setAttribute("kdenlive_ix", effectindex);
+                            QDomNodeList clipeffectparams = currenteffect.childNodes();
+
+                            if (MainWindow::videoEffects.hasKeyFrames(currenteffect)) {
+                                //kDebug() << " * * * * * * * * * * ** CLIP EFF WITH KFR FND  * * * * * * * * * * *";
+                                // effect is key-framable, read all effects to retrieve keyframes
+                                double factor;
+                                QString starttag;
+                                QString endtag;
+                                QDomNodeList params = currenteffect.elementsByTagName("parameter");
+                                for (int i = 0; i < params.count(); i++) {
+                                    QDomElement e = params.item(i).toElement();
+                                    if (e.attribute("type") == "keyframe") {
+                                        starttag = e.attribute("starttag", "start");
+                                        endtag = e.attribute("endtag", "end");
+                                        factor = e.attribute("factor", "1").toDouble();
+                                        break;
+                                    }
+                                }
+                                QString keyframes;
+                                int effectin = effect.attribute("in").toInt();
+                                int effectout = effect.attribute("out").toInt();
+                                double startvalue;
+                                double endvalue;
+                                for (QDomNode n3 = effect.firstChild(); !n3.isNull(); n3 = n3.nextSibling()) {
+                                    // parse effect parameters
+                                    QDomElement effectparam = n3.toElement();
+                                    if (effectparam.attribute("name") == starttag)
+                                        startvalue = effectparam.text().toDouble() * factor;
+                                    if (effectparam.attribute("name") == endtag)
+                                        endvalue = effectparam.text().toDouble() * factor;
+                                }
+                                // add first keyframe
+                                keyframes.append(QString::number(effectin) + ":" + QString::number(startvalue) + ";" + QString::number(effectout) + ":" + QString::number(endvalue) + ";");
+                                QDomNode lastParsedEffect;
+                                ix++;
+                                QDomNode n2 = effects.at(ix);
+                                bool continueParsing = true;
+                                for (; !n2.isNull() && continueParsing; n2 = n2.nextSibling()) {
+                                    // parse all effects
+                                    QDomElement kfreffect = n2.toElement();
+                                    int effectout = kfreffect.attribute("out").toInt();
+
+                                    for (QDomNode n4 = kfreffect.firstChild(); !n4.isNull(); n4 = n4.nextSibling()) {
+                                        // parse effect parameters
+                                        QDomElement subeffectparam = n4.toElement();
+                                        if (subeffectparam.attribute("name") == "kdenlive_ix" && subeffectparam.text() != effectindex) {
+                                            //We are not in the same effect, stop parsing
+                                            lastParsedEffect = n2.previousSibling();
+                                            ix--;
+                                            continueParsing = false;
+                                            break;
+                                        } else if (subeffectparam.attribute("name") == endtag) {
+                                            endvalue = subeffectparam.text().toDouble() * factor;
+                                            break;
+                                        }
+                                    }
+                                    if (continueParsing) {
+                                        keyframes.append(QString::number(effectout) + ":" + QString::number(endvalue) + ";");
+                                        ix++;
+                                    }
+                                }
+
+                                params = currenteffect.elementsByTagName("parameter");
+                                for (int i = 0; i < params.count(); i++) {
+                                    QDomElement e = params.item(i).toElement();
+                                    if (e.attribute("type") == "keyframe") e.setAttribute("keyframes", keyframes);
+                                }
+                                if (!continueParsing) {
+                                    n2 = lastParsedEffect;
+                                }
+                            } else {
+                                // Check if effect has in/out points
+                                if (effect.hasAttribute("in")) {
+                                    EffectsList::setParameter(currenteffect, "in",  effect.attribute("in"));
+                                }
+                                if (effect.hasAttribute("out")) {
+                                    EffectsList::setParameter(currenteffect, "out",  effect.attribute("out"));
+                                }
+                            }
+
+                            // adjust effect parameters
+                            for (QDomNode n3 = effect.firstChild(); !n3.isNull(); n3 = n3.nextSibling()) {
+                                // parse effect parameters
+                                QDomElement effectparam = n3.toElement();
+                                QString paramname = effectparam.attribute("name");
+                                QString paramvalue = effectparam.text();
+
+
+                                // try to find this parameter in the effect xml
+                                QDomElement e;
+                                for (int k = 0; k < clipeffectparams.count(); k++) {
+                                    e = clipeffectparams.item(k).toElement();
+                                    if (!e.isNull() && e.tagName() == "parameter" && e.attribute("name") == paramname) {
+                                        double factor = e.attribute("factor", "1").toDouble();
+                                        if (factor != 1) {
+                                            e.setAttribute("value", paramvalue.toDouble() * factor);
+                                        } else e.setAttribute("value", paramvalue);
+                                        break;
+                                    }
+                                }
+                            }
+                            if (effecttag == "ladspa") {
+                                //QString ladspaEffectFile = EffectsList::parameter(effect, "src", "property");
+
+                                if (!QFile::exists(ladspaEffectFile)) {
+                                    // If the ladspa effect file is missing, recreate it
+                                    initEffects::ladspaEffectFile(ladspaEffectFile, currenteffect.attribute("ladspaid").toInt(), m_trackview->getLadspaParams(currenteffect));
+                                }
+                                currenteffect.setAttribute("src", ladspaEffectFile);
+                            }
+                            item->addEffect(currenteffect, false);
+                            item->effectsCounter();
+                        }
+                    }
+                }
+            } else kWarning() << "CANNOT INSERT CLIP " << id;
+            //m_clipList.append(clip);
+        }
+    }
+    //m_trackDuration = position;
+
+
+    //documentTracks.insert(ix, track);
+    kDebug() << "*************  ADD DOC TRACK " << ix << ", DURATION: " << position;
+    return position;
+    //track->show();
+}
+
+QGraphicsScene *TrackView::projectScene() {
+    return m_scene;
+}
+
+CustomTrackView *TrackView::projectView() {
+    return m_trackview;
+}
+
+void TrackView::setEditMode(const QString & editMode) {
+    m_editMode = editMode;
+}
+
+const QString & TrackView::editMode() const {
+    return m_editMode;
+}
+
+
+
 #include "trackview.moc"