implemented a footage viewer

Essentially a minor derivation of a viewer type that can automatically view
footage from the project (i.e. not in a sequence).

app/widget/projectexplorer/projectexplorer.cpp

@@ -25,6 +25,7 @@
 #include <QVBoxLayout>
 
 #include "common/define.h"
+#include "core.h"
 #include "dialog/footageproperties/footageproperties.h"
 
 ProjectExplorer::ProjectExplorer(QWidget *parent) :
@@ -38,8 +39,8 @@ ProjectExplorer::ProjectExplorer(QWidget *parent) :
 
   // Set up navigation bar
   nav_bar_ = new ProjectExplorerNavigation(this);
-  connect(nav_bar_, SIGNAL(SizeChanged(int)), this, SLOT(SizeChangedSlot(int)));
-  connect(nav_bar_, SIGNAL(DirectoryUpClicked()), this, SLOT(DirUpSlot()));
+  connect(nav_bar_, &ProjectExplorerNavigation::SizeChanged, this, &ProjectExplorer::SizeChangedSlot);
+  connect(nav_bar_, &ProjectExplorerNavigation::DirectoryUpClicked, this, &ProjectExplorer::DirUpSlot);
   layout->addWidget(nav_bar_);
 
   // Set up stacked widget
@@ -111,8 +112,9 @@ void ProjectExplorer::AddView(QAbstractItemView *view)
 {
   view->setModel(&model_);
   view->setEditTriggers(QAbstractItemView::NoEditTriggers);
-  connect(view, SIGNAL(DoubleClickedView(const QModelIndex&)), this, SLOT(DoubleClickViewSlot(const QModelIndex&)));
-  connect(view, SIGNAL(clicked(const QModelIndex&)), this, SLOT(ItemClickedSlot(const QModelIndex&)));
+  connect(view, &QAbstractItemView::clicked, this, &ProjectExplorer::ItemClickedSlot);
+  connect(view, &QAbstractItemView::doubleClicked, this, &ProjectExplorer::ItemDoubleClickedSlot);
+  connect(view, SIGNAL(DoubleClickedEmptyArea()), this, SLOT(ViewEmptyAreaDoubleClickedSlot()));
   stacked_widget_->addWidget(view);
 }
 
@@ -162,30 +164,34 @@ void ProjectExplorer::ItemClickedSlot(const QModelIndex &index)
   }
 }
 
-void ProjectExplorer::DoubleClickViewSlot(const QModelIndex &index)
+void ProjectExplorer::ViewEmptyAreaDoubleClickedSlot()
 {
-  if (index.isValid()) {
+  // Ensure no attempts to rename are made
+  clicked_index_ = QModelIndex();
+  rename_timer_.stop();
 
-    // Retrieve source item from index
-    Item* i = static_cast<Item*>(index.internalPointer());
+  emit DoubleClickedItem(nullptr);
+}
 
-    // If the item is a folder, browse to it
-    if (i->CanHaveChildren()
-        && (view_type() == ProjectToolbar::ListView || view_type() == ProjectToolbar::IconView)) {
+void ProjectExplorer::ItemDoubleClickedSlot(const QModelIndex &index)
+{
+  // Ensure no attempts to rename are made
+  clicked_index_ = QModelIndex();
+  rename_timer_.stop();
 
-      BrowseToFolder(index);
+  // Retrieve source item from index
+  Item* i = static_cast<Item*>(index.internalPointer());
 
-    }
+  // If the item is a folder, browse to it
+  if (i->CanHaveChildren()
+      && (view_type() == ProjectToolbar::ListView || view_type() == ProjectToolbar::IconView)) {
 
-    // Emit a signal
-    emit DoubleClickedItem(i);
-
-  } else {
-
-    // Emit nullptr since no item was actually clicked on
-    emit DoubleClickedItem(nullptr);
+    BrowseToFolder(index);
 
   }
+
+  // Emit a signal
+  emit DoubleClickedItem(i);
 }
 
 void ProjectExplorer::SizeChangedSlot(int s)
@@ -218,9 +224,6 @@ void ProjectExplorer::RenameTimerSlot()
   rename_timer_.stop();
 }
 
-// FIXME: This is down here because of the code in ShowContextMenu() which may be unnecessary allowing this to be removed
-#include "core.h"
-
 void ProjectExplorer::ShowContextMenu()
 {
   QMenu menu;
@@ -231,17 +234,17 @@ void ProjectExplorer::ShowContextMenu()
   if (selected_items.isEmpty()) {
     // FIXME: These are both duplicates of items from MainMenu, is there any way to re-use the code?
     QAction* import_action = menu.addAction(tr("&Import..."));
-    connect(import_action, SIGNAL(triggered(bool)), Core::instance(), SLOT(DialogImportShow()));
+    connect(import_action, &QAction::triggered, Core::instance(), &Core::DialogImportShow);
 
     menu.addSeparator();
 
     QAction* project_properties = menu.addAction(tr("&Project Properties..."));
-    connect(project_properties, SIGNAL(triggered(bool)), Core::instance(), SLOT(DialogProjectPropertiesShow()));
+    connect(project_properties, &QAction::triggered, Core::instance(), &Core::DialogProjectPropertiesShow);
   } else {
     QAction* properties_action = menu.addAction(tr("P&roperties"));
 
     if (selected_items.first()->type() == Item::kFootage) {
-      connect(properties_action, SIGNAL(triggered(bool)), this, SLOT(ShowFootagePropertiesDialog()));
+      connect(properties_action, &QAction::triggered, this, &ProjectExplorer::ShowFootagePropertiesDialog);
     }
   }
 

app/widget/projectexplorer/projectexplorer.h

@@ -135,7 +135,9 @@ private:
 private slots:
   void ItemClickedSlot(const QModelIndex& index);
 
-  void DoubleClickViewSlot(const QModelIndex& index);
+  void ViewEmptyAreaDoubleClickedSlot();
+
+  void ItemDoubleClickedSlot(const QModelIndex& index);
 
   void SizeChangedSlot(int s);
 

app/widget/projectexplorer/projectexplorerlistviewbase.cpp

@@ -43,9 +43,8 @@ void ProjectExplorerListViewBase::mouseDoubleClickEvent(QMouseEvent *event)
   // Perform default double click functions
   QListView::mouseDoubleClickEvent(event);
 
-  // Get the index at whatever position was double clicked
-  QModelIndex index = indexAt(event->pos());
-
-  // Emit the signal with this index
-  emit DoubleClickedView(index);
+  // QAbstractItemView already has a doubleClicked() signal, but we emit another here for double clicking empty space
+  if (!indexAt(event->pos()).isValid()) {
+    emit DoubleClickedEmptyArea();
+  }
 }

app/widget/projectexplorer/projectexplorerlistviewbase.h

@@ -33,7 +33,7 @@ class ProjectExplorerListViewBase : public QListView
 public:
   ProjectExplorerListViewBase(QWidget* parent);
 
-protected: 
+protected:
   /**
    * @brief Double click event override
    *
@@ -48,9 +48,9 @@ signals:
   /**
    * @brief Unconditional double click signal
    *
-   * Emits a signal when the view is double clicked, regardless of whether the double clicked index was valid.
+   * Emits a signal when the view is double clicked but not on any particular item
    */
-  void DoubleClickedView(const QModelIndex& index);
+  void DoubleClickedEmptyArea();
 };
 
 #endif // PROJECTEXPLORERLISTVIEWBASE_H

app/widget/projectexplorer/projectexplorertreeview.cpp

@@ -46,9 +46,8 @@ void ProjectExplorerTreeView::mouseDoubleClickEvent(QMouseEvent *event)
   // Perform default double click functions
   QTreeView::mouseDoubleClickEvent(event);
 
-  // Get the index at whatever position was double clicked
-  QModelIndex index = indexAt(event->pos());
-
-  // Emit the signal with this index
-  emit DoubleClickedView(index);
+  // QAbstractItemView already has a doubleClicked() signal, but we emit another here for double clicking empty space
+  if (!indexAt(event->pos()).isValid()) {
+    emit DoubleClickedEmptyArea();
+  }
 }

app/widget/projectexplorer/projectexplorertreeview.h

@@ -50,9 +50,9 @@ signals:
   /**
    * @brief Unconditional double click signal
    *
-   * Emits a signal when the view is double clicked, regardless of whether the double clicked index was valid.
+   * Emits a signal when the view is double clicked but not on any particular item
    */
-  void DoubleClickedView(const QModelIndex& index);
+  void DoubleClickedEmptyArea();
 };
 
 #endif // PROJECTEXPLORERTREEVIEW_H