more project management updates

app/widget/projectexplorer/CMakeLists.txt

@@ -18,5 +18,7 @@ set(OLIVE_SOURCES
   ${OLIVE_SOURCES}
   widget/projectexplorer/projectexplorer.h
   widget/projectexplorer/projectexplorer.cpp
+  widget/projectexplorer/projectexplorertreeview.h
+  widget/projectexplorer/projectexplorertreeview.cpp
   PARENT_SCOPE
 )

app/widget/projectexplorer/projectexplorer.cpp

@@ -20,13 +20,16 @@
 
 #include "projectexplorer.h"
 
+#include <QDebug>
+
 ProjectExplorer::ProjectExplorer(QWidget *parent) :
   QStackedWidget(parent),
   view_type_(olive::TreeView),
   model_(this)
 {
-  tree_view_ = new QTreeView(this);
+  tree_view_ = new ProjectExplorerTreeView(this);
   tree_view_->setModel(&model_);
+  connect(tree_view_, SIGNAL(DoubleClickedView(const QModelIndex&)), this, SLOT(DoubleClickViewSlot(const QModelIndex&)));
   addWidget(tree_view_);
 }
 
@@ -40,6 +43,24 @@ void ProjectExplorer::set_view_type(olive::ProjectViewType type)
   view_type_ = type;
 }
 
+void ProjectExplorer::DoubleClickViewSlot(const QModelIndex &index)
+{
+  if (index.isValid()) {
+
+    // Retrieve source item from index
+    Item* i = static_cast<Item*>(index.internalPointer());
+
+    // Emit a signal
+    emit DoubleClickedItem(i);
+
+  } else {
+
+    // Emit nullptr since no item was actually clicked on
+    emit DoubleClickedItem(nullptr);
+
+  }
+}
+
 Project *ProjectExplorer::project()
 {
   return model_.project();

app/widget/projectexplorer/projectexplorer.h

@@ -27,6 +27,7 @@
 #include "project/project.h"
 #include "project/projectviewmodel.h"
 #include "project/projectviewtype.h"
+#include "widget/projectexplorer/projectexplorertreeview.h"
 
 /**
  * @brief The ProjectExplorer class
@@ -52,12 +53,25 @@ public:
 public slots:
   void set_view_type(olive::ProjectViewType type);
 
+signals:
+  /**
+   * @brief Emitted when an Item is double clicked
+   *
+   * @param item
+   *
+   * The Item that was double clicked, or nullptr if empty area was double clicked
+   */
+  void DoubleClickedItem(Item* item);
+
 private:
-  QTreeView* tree_view_;
+  ProjectExplorerTreeView* tree_view_;
 
   olive::ProjectViewType view_type_;
 
   ProjectViewModel model_;
+
+private slots:
+  void DoubleClickViewSlot(const QModelIndex& index);
 };
 
 #endif // PROJECTEXPLORER_H

app/widget/projectexplorer/projectexplorertreeview.cpp

@@ -0,0 +1,20 @@
+#include "projectexplorertreeview.h"
+
+#include <QMouseEvent>
+
+ProjectExplorerTreeView::ProjectExplorerTreeView(QWidget *parent) :
+  QTreeView(parent)
+{
+}
+
+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);
+}

app/widget/projectexplorer/projectexplorertreeview.h

@@ -0,0 +1,25 @@
+#ifndef PROJECTEXPLORERTREEVIEW_H
+#define PROJECTEXPLORERTREEVIEW_H
+
+#include <QTreeView>
+
+/**
+ * @brief The ProjectExplorerTreeView class
+ *
+ * A fairly simple subclass of QTreeView that provides a double clicked signal whether the index is valid or not
+ * (QAbstractItemView has a doubleClicked() signal but it's only emitted with a valid index).
+ */
+class ProjectExplorerTreeView : public QTreeView
+{
+  Q_OBJECT
+public:
+  ProjectExplorerTreeView(QWidget* parent);
+
+protected:
+  virtual void mouseDoubleClickEvent(QMouseEvent *event) override;
+
+signals:
+  void DoubleClickedView(const QModelIndex& index);
+};
+
+#endif // PROJECTEXPLORERTREEVIEW_H