Basic implementation of the timeline graphics model

src/gui/AbstractGraphicsMediaItem.h

+/*****************************************************************************
+ * AbstractGraphicsMediaItem.h: Base class for media representation
+ *****************************************************************************
+ * Copyright (C) 2008-2009 the VLMC team
+ *
+ * Authors: Ludovic Fauvet <etix@l0cal.com>
+ *
+ * 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.
+ *****************************************************************************/
+
+#ifndef ABSTRACTGRAPHICSMEDIAITEM_H
+#define ABSTRACTGRAPHICSMEDIAITEM_H
+
+#include <QGraphicsItem>
+#include <QUuid>
+
+class AbstractGraphicsMediaItem : public QObject, public QGraphicsItem
+{
+    Q_OBJECT
+public:
+    virtual ~AbstractGraphicsMediaItem() { }
+
+    /// The item length can be expanded or shrinked by the user.
+    virtual bool expandable() const = 0;
+
+    /// The item can be moved by the user.
+    virtual bool moveable() const = 0;
+
+    /// Should return the unique uid of the contained media.
+    virtual const QUuid& uuid() const = 0;
+};
+
+#endif // ABSTRACTGRAPHICSMEDIAITEM_H

src/gui/GraphicsMovieItem.cpp

+/*****************************************************************************
+ * GraphicsMovieItem.cpp: Represent a movie graphically in the timeline
+ *****************************************************************************
+ * Copyright (C) 2008-2009 the VLMC team
+ *
+ * Authors: Ludovic Fauvet <etix@l0cal.com>
+ *
+ * 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 "GraphicsMovieItem.h"
+
+GraphicsMovieItem::GraphicsMovieItem( Clip* clip ) : m_clip( clip )
+{
+
+}
+
+GraphicsMovieItem::~GraphicsMovieItem()
+{
+}
+
+int GraphicsMovieItem::tracksHeight()
+{
+    //TODO Get this value from the TracksView
+}

src/gui/GraphicsMovieItem.h

+/*****************************************************************************
+ * GraphicsMovieItem.h: Represent a movie graphically in the timeline
+ *****************************************************************************
+ * Copyright (C) 2008-2009 the VLMC team
+ *
+ * Authors: Ludovic Fauvet <etix@l0cal.com>
+ *
+ * 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.
+ *****************************************************************************/
+
+#ifndef GRAPHICSMOVIEITEM_H
+#define GRAPHICSMOVIEITEM_H
+
+#include "AbstractGraphicsMediaItem.h"
+#include "Clip.h"
+
+class GraphicsMovieItem : public AbstractGraphicsMediaItem
+{
+    Q_OBJECT
+public:
+    GraphicsMovieItem( Clip* clip );
+    virtual ~GraphicsMovieItem();
+
+    virtual bool expandable() const { return false; }
+    virtual bool moveable() const { return true; }
+    virtual const QUuid& uuid() const { return m_clip->getUuid(); }
+
+protected:
+    int tracksHeight();
+
+private:
+    Clip* m_clip;
+};
+
+#endif // GRAPHICSMOVIEITEM_H

src/gui/TracksView.h

@@ -38,7 +38,8 @@ public:
     TracksView( QGraphicsScene* scene, QWidget* parent = 0 );
     void setDuration( int duration );
     int duration() { return m_projectDuration; }
-    void setCursorPos(int pos);
+    int tracksHeight() { return m_tracksHeight; }
+    void setCursorPos( int pos );
 
 protected:
     virtual void resizeEvent( QResizeEvent* event );

vlmc.pro

@@ -32,7 +32,8 @@ SOURCES += src/main.cpp \
     src/gui/Slider.cpp \
     src/MetaDataManager.cpp \
     src/LibVLCpp/VLCMediaList.cpp \
-    src/Library.cpp
+    src/Library.cpp \
+    src/gui/GraphicsMovieItem.cpp
 HEADERS += src/gui/MainWindow.h \
     src/gui/DockWidgetManager.h \
     src/gui/LibraryWidget.h \
@@ -57,7 +58,9 @@ HEADERS += src/gui/MainWindow.h \
     src/MetaDataManager.h \
     src/LibVLCpp/VLCMediaList.h \
     src/Singleton.hpp \
-    src/Library.h
+    src/Library.h \
+    src/gui/AbstractGraphicsMediaItem.h \
+    src/gui/GraphicsMovieItem.h
 FORMS += src/gui/ui/MainWindow.ui \
     src/gui/ui/PreviewWidget.ui \
     src/gui/ui/Preferences.ui \