Add preview for videos

Grab 4 frames from a video and display them in the Viewer. First frame
is @00:01:00, last at length - 1 minute, and the other two are in
between: length / 4 * 2 and 3 (hardcoded).

1 files changed, 24 insertions, 1 deletions

diff --git a/filewidget.cpp b/filewidget.cpp
index f56b4ce..ef918f1 100644
--- a/filewidget.cpp
+++ b/filewidget.cpp
@@ -145,6 +145,8 @@ void FileWidget::createActions(){
     mPropertiesA = new QAction(QIcon(":/diaper.png"), tr("Properties..."), this);
     mPropertiesA->setShortcut(Qt::CTRL + Qt::Key_Return);
     connect(mPropertiesA, SIGNAL(triggered()), this, SLOT(properties()));
+    mPreviewA = new QAction(QIcon(":/snapshot.png"), tr("Preview..."), this);
+    connect(mPreviewA, SIGNAL(triggered()), this, SLOT(preview()));
     mAddAsOriginA = new QAction(QIcon(":/butt_plug.png"), tr("Add as Origin..."), this);
     connect(mAddAsOriginA, SIGNAL(triggered()), this, SLOT(addAsOrigin()));
 
@@ -164,6 +166,7 @@ void FileWidget::createActions(){
     editMenu->addAction(mDeleteA);
     editMenu->addSeparator();
     editMenu->addAction(mPropertiesA);
+    editMenu->addAction(mPreviewA);
     editMenu->addAction(mAddAsOriginA);
     editMenu->addSeparator();
     editMenu->addAction(Globals::instance()->action(Globals::ConfigAction));
@@ -183,11 +186,13 @@ void FileWidget::createActions(){
     mToolBar->addAction(mDeleteA);
     mToolBar->addAction(createSeparator());
     mToolBar->addAction(mPropertiesA);
+    mToolBar->addAction(mPreviewA);
+    mToolBar->addAction(createSeparator());
     mToolBar->addAction(mAddAsOriginA);
     mToolBar->addAction(createSeparator());
     mToolBar->addAction(Globals::instance()->action(Globals::ConfigAction));
 
-    addActions(QList<QAction*>() << mDirBackA << mDirUpA << createSeparator() << mRefreshA << mSelDirA << createSeparator() << mCopyA << mCutA << mPasteA << mDeleteA << createSeparator() << mAddAsOriginA << mPropertiesA);
+    addActions(QList<QAction*>() << mDirBackA << mDirUpA << createSeparator() << mRefreshA << mSelDirA << createSeparator() << mCopyA << mCutA << mPasteA << mDeleteA << createSeparator() << mAddAsOriginA << createSeparator() << mPreviewA << createSeparator() << mPropertiesA);
 }
 
 void FileWidget::fileData(const QString &fullPath, const QString &md5){
@@ -513,6 +518,24 @@ void FileWidget::properties(const QModelIndex &idx){
     }
 }
 
+void FileWidget::preview(){
+    QModelIndex idx = mFileView->selectionModel()->currentIndex();
+    if(!idx.isValid()){
+        return;
+    }
+    QString mime = idx.sibling(idx.row(), MimeColumn).data().toString();
+    QString file = idx.data(FullPathRole).toString();
+    qApp->setOverrideCursor(Qt::WaitCursor);
+    Viewer *v = Globals::instance()->viewer();
+    if(mime.startsWith("video")){
+        v->preview(file);
+    }else if(mime.startsWith("image")){
+        v->setFile(file, false);
+    }
+    qApp->restoreOverrideCursor();
+    v->show();
+}
+
 void FileWidget::cd(const QString &to){
     QString ld = mDir->text();
     QDir cur(mDir->text());