CuteLogger
Fast and simple logging solution for Qt based applications
multitrackmodel.h
1/*
2 * Copyright (c) 2013-2024 Meltytech, LLC
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 3 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, see <http://www.gnu.org/licenses/>.
16 */
17
18#ifndef MULTITRACKMODEL_H
19#define MULTITRACKMODEL_H
20
21#include <QAbstractItemModel>
22#include <QList>
23#include <QString>
24#include <MltTractor.h>
25#include <MltPlaylist.h>
26#include <memory>
27
28typedef enum {
29 PlaylistTrackType = 0,
30 BlackTrackType,
31 SilentTrackType,
32 AudioTrackType,
33 VideoTrackType
34} TrackType;
35
36typedef struct {
37 TrackType type;
38 int number;
39 int mlt_index;
40} Track;
41
42typedef QList<Track> TrackList;
43
44class MultitrackModel : public QAbstractItemModel
45{
46 Q_OBJECT
47 Q_PROPERTY(int trackHeight READ trackHeight WRITE setTrackHeight NOTIFY trackHeightChanged)
48 Q_PROPERTY(double scaleFactor READ scaleFactor WRITE setScaleFactor NOTIFY scaleFactorChanged)
49 Q_PROPERTY(bool filtered READ isFiltered NOTIFY filteredChanged)
50
51public:
53 enum {
54 NameRole = Qt::UserRole + 1,
55 CommentRole,
56 ResourceRole,
57 ServiceRole,
58 IsBlankRole,
59 StartRole,
60 DurationRole,
61 InPointRole,
62 OutPointRole,
63 FramerateRole,
64 IsMuteRole,
65 IsHiddenRole,
66 IsAudioRole,
67 AudioLevelsRole,
68 IsCompositeRole,
69 IsLockedRole,
70 FadeInRole,
71 FadeOutRole,
72 IsTransitionRole,
73 FileHashRole,
74 SpeedRole,
75 IsFilteredRole,
76 IsTopVideoRole,
77 IsBottomVideoRole,
78 IsTopAudioRole,
79 IsBottomAudioRole,
80 AudioIndexRole,
81 GroupRole,
82 };
83
84 explicit MultitrackModel(QObject *parent = 0);
85 ~MultitrackModel();
86
87 Mlt::Tractor *tractor() const
88 {
89 return m_tractor;
90 }
91 const TrackList &trackList() const
92 {
93 return m_trackList;
94 }
95
96 int rowCount(const QModelIndex &parent = QModelIndex()) const;
97 int columnCount(const QModelIndex &parent) const;
98 QVariant data(const QModelIndex &index, int role) const;
99 QModelIndex index(int row, int column = 0,
100 const QModelIndex &parent = QModelIndex()) const;
101 QModelIndex makeIndex(int trackIndex, int clipIndex) const;
102 QModelIndex parent(const QModelIndex &index) const;
103 QHash<int, QByteArray> roleNames() const;
104 Q_INVOKABLE void audioLevelsReady(const QPersistentModelIndex &index);
105 bool createIfNeeded();
106 void addBackgroundTrack();
107 int addAudioTrack();
108 int addVideoTrack();
109 void removeTrack(int trackIndex);
110 void load();
111 void close();
112 int clipIndex(int trackIndex, int position);
113 bool trimClipInValid(int trackIndex, int clipIndex, int delta, bool ripple);
114 bool trimClipOutValid(int trackIndex, int clipIndex, int delta, bool ripple);
115 int trackHeight() const;
116 void setTrackHeight(int height);
117 double scaleFactor() const;
118 void setScaleFactor(double scale);
119 bool isTransition(Mlt::Playlist &playlist, int clipIndex) const;
120 void insertTrack(int trackIndex, TrackType type = VideoTrackType);
121 void moveTrack(int fromTrackIndex, int toTrackIndex);
122 void insertOrAdjustBlankAt(QList<int> tracks, int position, int length);
123 bool mergeClipWithNext(int trackIndex, int clipIndex, bool dryrun);
124 std::unique_ptr<Mlt::ClipInfo> findClipByUuid(const QUuid &uuid, int &trackIndex, int &clipIndex);
125 std::unique_ptr<Mlt::ClipInfo> getClipInfo(int trackIndex, int clipIndex);
126 QString getTrackName(int trackIndex);
127 int bottomVideoTrackIndex() const;
128 int mltIndexForTrack(int trackIndex) const;
129
130signals:
131 void created();
132 void aboutToClose();
133 void closed();
134 void modified();
135 void seeked(int position, bool seekPlayer = true);
136 void trackHeightChanged();
137 void scaleFactorChanged();
138 void showStatusMessage(QString);
139 void durationChanged();
140 void filteredChanged();
141 void reloadRequested();
142 void appended(int trackIndex, int clipIndex);
143 void inserted(int trackIndex, int clipIndex);
144 void overWritten(int trackIndex, int clipIndex);
145 void removing(Mlt::Service *service);
146 void noMoreEmptyTracks(bool isAudio);
147
148public slots:
149 void refreshTrackList();
150 void setTrackName(int row, const QString &value);
151 void setTrackMute(int row, bool mute);
152 void setTrackHidden(int row, bool hidden);
153 void setTrackComposite(int row, bool composite);
154 void setTrackLock(int row, bool lock);
155 int trimClipIn(int trackIndex, int clipIndex, int delta, bool ripple, bool rippleAllTracks);
156 void notifyClipIn(int trackIndex, int clipIndex);
157 int trimClipOut(int trackIndex, int clipIndex, int delta, bool ripple, bool rippleAllTracks);
158 void notifyClipOut(int trackIndex, int clipIndex);
159 bool moveClip(int fromTrack, int toTrack, int clipIndex, int position, bool ripple,
160 bool rippleAllTracks);
161 int overwriteClip(int trackIndex, Mlt::Producer &clip, int position, bool seek = true);
162 QString overwrite(int trackIndex, Mlt::Producer &clip, int position, bool seek = true,
163 bool notify = true);
164 int insertClip(int trackIndex, Mlt::Producer &clip, int position, bool rippleAllTracks,
165 bool seek = true, bool notify = true);
166 int appendClip(int trackIndex, Mlt::Producer &clip, bool seek = true, bool notify = true);
167 void removeClip(int trackIndex, int clipIndex, bool rippleAllTracks);
168 void liftClip(int trackIndex, int clipIndex);
169 void splitClip(int trackIndex, int clipIndex, int position);
170 void joinClips(int trackIndex, int clipIndex);
171 void fadeIn(int trackIndex, int clipIndex, int duration);
172 void fadeOut(int trackIndex, int clipIndex, int duration);
173 bool addTransitionValid(int fromTrack, int toTrack, int clipIndex, int position, bool ripple);
174 int addTransition(int trackIndex, int clipIndex, int position, bool ripple, bool rippleAllTracks);
175 void removeTransition(int trackIndex, int clipIndex);
176 void removeTransitionByTrimIn(int trackIndex, int clipIndex, int delta);
177 void removeTransitionByTrimOut(int trackIndex, int clipIndex, int delta);
178 bool trimTransitionInValid(int trackIndex, int clipIndex, int delta);
179 void trimTransitionIn(int trackIndex, int clipIndex, int delta);
180 bool trimTransitionOutValid(int trackIndex, int clipIndex, int delta);
181 void trimTransitionOut(int trackIndex, int clipIndex, int delta);
182 bool addTransitionByTrimInValid(int trackIndex, int clipIndex, int delta);
183 int addTransitionByTrimIn(int trackIndex, int clipIndex, int delta);
184 bool addTransitionByTrimOutValid(int trackIndex, int clipIndex, int delta);
185 void addTransitionByTrimOut(int trackIndex, int clipIndex, int delta);
186 bool removeTransitionByTrimInValid(int trackIndex, int clipIndex, int delta);
187 bool removeTransitionByTrimOutValid(int trackIndex, int clipIndex, int delta);
188 void filterAddedOrRemoved(Mlt::Producer *producer);
189 void onFilterChanged(Mlt::Service *service);
190 void reload(bool asynchronous = false);
191 void replace(int trackIndex, int clipIndex, Mlt::Producer &clip, bool copyFilters = true);
192
193private:
194 Mlt::Tractor *m_tractor;
195 TrackList m_trackList;
196 bool m_isMakingTransition;
197
198 void moveClipToEnd(Mlt::Playlist &playlist, int trackIndex, int clipIndex, int position,
199 bool ripple, bool rippleAllTracks);
200 void moveClipInBlank(Mlt::Playlist &playlist, int trackIndex, int clipIndex, int position,
201 bool ripple, bool rippleAllTracks, int duration = 0);
202 void consolidateBlanks(Mlt::Playlist &playlist, int trackIndex);
203 void consolidateBlanksAllTracks();
204 void getAudioLevels();
205 void addBlackTrackIfNeeded();
206 void convertOldDoc();
207 Mlt::Transition *getTransition(const QString &name, int trackIndex) const;
208 Mlt::Filter *getFilter(const QString &name, int trackIndex) const;
209 Mlt::Filter *getFilter(const QString &name, Mlt::Service *service) const;
210 void removeBlankPlaceholder(Mlt::Playlist &playlist, int trackIndex);
211 void retainPlaylist();
212 void loadPlaylist();
213 void removeRegion(int trackIndex, int position, int length);
214 void clearMixReferences(int trackIndex, int clipIndex);
215 bool isFiltered(Mlt::Producer *producer = 0) const;
216 int getDuration();
217 void adjustServiceFilterDurations(Mlt::Service &service, int duration);
218 bool warnIfInvalid(Mlt::Service &service);
219 Mlt::Transition *getVideoBlendTransition(int trackIndex) const;
220 void refreshVideoBlendTransitions();
221 int bottomVideoTrackMltIndex() const;
222 bool hasEmptyTrack(TrackType trackType) const;
223
224 friend class UndoHelper;
225
226private slots:
227 void adjustBackgroundDuration();
228 void adjustTrackFilters();
229};
230
231#endif // MULTITRACKMODEL_H