Implement TransitionsListView

Makefile.am

@@ -173,6 +173,7 @@ vlmc_SOURCES += \
 	src/Gui/effectsengine/EffectsListView.cpp \
 	src/Gui/effectsengine/EffectStack.cpp \
 	src/Gui/effectsengine/EffectWidget.cpp \
+	src/Gui/transition/TransitionsListView.cpp \
 	src/Gui/export/RendererSettings.cpp \
 	src/Gui/export/ShareOnInternet.cpp \
 	src/Gui/import/TagWidget.cpp \
@@ -319,6 +320,7 @@ nodist_vlmc_SOURCES += \
 	src/Gui/media/ClipMetadataDisplayer.moc.cpp \
 	src/Gui/effectsengine/EffectWidget.moc.cpp \
 	src/Gui/effectsengine/EffectInstanceWidget.moc.cpp \
+	src/Gui/transition/TransitionsListView.moc.cpp \
 	src/Gui/preview/LCDTimecode.moc.cpp \
 	src/Gui/effectsengine/EffectStack.moc.cpp \
 	src/Gui/wizard/firstlaunch/WorkspaceLocation.moc.cpp \
@@ -402,6 +404,7 @@ vlmc_QML = \
 	src/Gui/library/ui/ClipItem.qml \
 	src/Gui/effectsengine/Effect.qml \
 	src/Gui/effectsengine/EffectsListView.qml \
+	src/Gui/transition/TransitionsListView.qml \
 	$(NULL)
 
 EXTRA_DIST += $(vlmc_QML)

src/Gui/MainWindow.cpp

@@ -56,6 +56,7 @@
 
 /* Widgets */
 #include "effectsengine/EffectsListView.h"
+#include "transition/TransitionsListView.h"
 #include "library/MediaLibraryView.h"
 #include "library/ClipLibraryView.h"
 #include "preview/PreviewWidget.h"
@@ -178,6 +179,7 @@ MainWindow::retranslateUi()
 {
     m_dockedUndoView->setWindowTitle( tr( "History" ) );
     m_dockedEffectsList->setWindowTitle( tr( "Effects List" ) );
+    m_dockedTransitionsList->setWindowTitle( tr( "Transitions List" ) );
     m_dockedMediaLibrary->setWindowTitle( tr( "Media Library" ) );
     m_dockedClipLibrary->setWindowTitle( tr( "Clip Library" ) );
     m_dockedClipPreview->setWindowTitle( tr( "Clip Preview" ) );
@@ -482,6 +484,7 @@ MainWindow::initializeDockWidgets()
 
     setupLibrary();
     setupEffectsList();
+    setupTransitionsList();
     setupClipPreview();
     setupProjectPreview();
     setupUndoRedoWidget();
@@ -508,6 +511,13 @@ MainWindow::setupEffectsList()
     m_dockedEffectsList = dockWidget( m_effectsList->container(), Qt::TopDockWidgetArea );
 }
 
+void
+MainWindow::setupTransitionsList()
+{
+    m_transitionsList = new TransitionsListView( this );
+    m_dockedTransitionsList = dockWidget( m_transitionsList->container(), Qt::TopDockWidgetArea );
+}
+
 void
 MainWindow::setupLibrary()
 {

src/Gui/MainWindow.h

@@ -37,6 +37,7 @@ class QProgressBar;
 #include "ui/MainWindow.h"
 
 class   EffectsListView;
+class   TransitionsListView;
 class   ClipLibraryView;
 class   MediaLibraryView;
 class   PreviewWidget;
@@ -88,6 +89,7 @@ private:
     void        setupClipPreview();
     void        setupProjectPreview();
     void        setupEffectsList();
+    void        setupTransitionsList();
     void        setupUndoRedoWidget();
     void        retranslateUi();
 #ifdef WITH_CRASHBUTTON
@@ -132,9 +134,11 @@ private:
     MediaLibraryView*       m_mediaLibrary;
     ClipLibraryView*        m_clipLibrary;
     EffectsListView*        m_effectsList;
+    TransitionsListView*    m_transitionsList;
     QUndoView*              m_undoView;
     QDockWidget*            m_dockedUndoView;
     QDockWidget*            m_dockedEffectsList;
+    QDockWidget*            m_dockedTransitionsList;
     QDockWidget*            m_dockedClipLibrary;
     QDockWidget*            m_dockedMediaLibrary;
     QDockWidget*            m_dockedClipPreview;

src/Gui/transition/TransitionsListView.cpp

+#include "TransitionsListView.h"
+
+#include "Backend/IBackend.h"
+#include "Backend/IInfo.h"
+#include "Backend/ITransition.h"
+
+#include <QWidget>
+#include <QJsonObject>
+#include <QQuickView>
+#include <QQmlContext>
+#include <QDrag>
+#include <QMimeData>
+
+TransitionsListView::TransitionsListView( QWidget* parent )
+    : QObject( parent )
+{
+    setObjectName( QStringLiteral( "TransitionsListView" ) );
+    auto view = new QQuickView;
+    m_container = QWidget::createWindowContainer( view, parent );
+    m_container->setMinimumSize( 100, 1 );
+    m_container->setObjectName( objectName() );
+    view->rootContext()->setContextProperty( QStringLiteral( "view" ), this );
+    view->setSource( QUrl( QStringLiteral( "qrc:/QML/TransitionsListView.qml" ) ) );
+    view->setResizeMode( QQuickView::SizeRootObjectToView );
+}
+
+TransitionsListView::~TransitionsListView()
+{
+
+}
+
+QWidget*
+TransitionsListView::container()
+{
+    return m_container;
+}
+
+QJsonArray
+TransitionsListView::transitions()
+{
+    QJsonArray array;
+    for ( auto p : Backend::instance()->availableTransitions() )
+    {
+        auto info = p.second;
+        QJsonObject jInfo;
+        jInfo[QStringLiteral( "identifier" )] = QString::fromStdString( info->identifier() );
+        jInfo[QStringLiteral( "name" )] = QString::fromStdString( info->name() );
+        jInfo[QStringLiteral( "description" )] = QString::fromStdString( info->description() );
+        jInfo[QStringLiteral( "author" )] = QString::fromStdString( info->author() );
+        array.append( jInfo );
+    }
+    return array;
+}
+
+void
+TransitionsListView::startDrag( const QString& transitionId )
+{
+    QDrag* drag = new QDrag( this );
+    QMimeData* mimeData = new QMimeData;
+
+    mimeData->setData( QStringLiteral( "vlmc/transition_id" ), transitionId.toUtf8() );
+
+    drag->setMimeData( mimeData );
+    drag->exec();
+}

src/Gui/transition/TransitionsListView.h

+#ifndef TRANSITIONSLISTVIEW_H
+#define TRANSITIONSLISTVIEW_H
+
+#include <QObject>
+#include <QJsonArray>
+
+class TransitionsListView : public QObject
+{
+    Q_OBJECT
+    Q_DISABLE_COPY( TransitionsListView )
+
+    public:
+        explicit TransitionsListView( QWidget* parent = 0);
+        virtual ~TransitionsListView();
+
+        QWidget*            container();
+
+        Q_INVOKABLE
+        QJsonArray          transitions();
+
+    public slots:
+        void    startDrag( const QString& transitionId );
+
+    private:
+        QWidget*            m_container;
+};
+
+#endif // TRANSITIONSLISTVIEW_H

src/Gui/transition/TransitionsListView.qml

+import QtQuick 2.0
+import QtQuick.Controls 1.4
+
+Rectangle {
+    anchors.fill: parent
+    color: "#999999"
+
+    ListModel {
+        id: transitionsList
+    }
+
+    Component.onCompleted: {
+        var transitionsInfo = view.transitions();
+        for ( var i = 0; i < transitionsInfo.length; ++i ) {
+            transitionsList.append( transitionsInfo[i] );
+        }
+    }
+
+    ScrollView {
+        id: sView
+        height: parent.height
+        width: parent.width
+
+        ListView {
+            width: sView.viewport.width
+            model: transitionsList
+            delegate: Effect {
+                width: sView.viewport.width
+                identifier: model.identifier
+                name: model.name
+                description: model.description
+            }
+        }
+    }
+}