core: add debugging "magic" function

Just a UI way of turning on debug functionality

app/core.cpp

@@ -88,7 +88,8 @@ Core::Core(const CoreParams& params) :
   snapping_(true),
   core_params_(params),
   pixel_sampling_users_(0),
-  shown_cache_full_warning_(false)
+  shown_cache_full_warning_(false),
+  magic_(false)
 {
   // Store reference to this object, making the assumption that Core will only ever be made in
   // main(). This will obviously break if not.

app/core.h

@@ -319,6 +319,8 @@ public:
 
   void OpenExportDialogForViewer(ViewerOutput *viewer, bool start_still_image);
 
+  bool IsMagicEnabled() const { return magic_; }
+
 public slots:
   /**
    * @brief Starts an open file dialog to load a project from file
@@ -449,6 +451,11 @@ public slots:
 
   void WarnCacheFull();
 
+  void SetMagic(bool e)
+  {
+    magic_ = e;
+  }
+
 signals:
   /**
    * @brief Signal emitted when a project is opened
@@ -626,6 +633,11 @@ private:
    */
   QVector<QUuid> autorecovered_projects_;
 
+  /**
+   * @brief Do something debug related
+   */
+  bool magic_;
+
   /**
    * @brief How many widgets currently need pixel sampling access
    */

app/window/mainwindow/mainmenu.cpp

@@ -282,6 +282,11 @@ MainMenu::MainMenu(MainWindow *parent) :
 
   tools_preferences_item_ = tools_menu_->AddItem("prefs", Core::instance(), &Core::DialogPreferencesShow, tr("Ctrl+,"));
 
+#ifndef NDEBUG
+  tools_magic_item_ = tools_menu_->AddItem("magic", Core::instance(), &Core::SetMagic);
+  tools_magic_item_->setCheckable(true);
+#endif
+
   //
   // HELP MENU
   //
@@ -787,6 +792,9 @@ void MainMenu::Retranslate()
   tools_record_item_->setText(tr("Record Tool"));
   tools_snapping_item_->setText(tr("Enable Snapping"));
   tools_preferences_item_->setText(tr("Preferences"));
+#ifndef NDEBUG
+  tools_magic_item_->setText("Magic");
+#endif
 
   // Help menu
   help_menu_->setTitle(tr("&Help"));

app/window/mainwindow/mainmenu.h

@@ -287,6 +287,10 @@ private:
   QAction* tools_snapping_item_;
   QAction* tools_preferences_item_;
 
+#ifndef NDEBUG
+  QAction* tools_magic_item_;
+#endif
+
   Menu* help_menu_;
   QAction* help_action_search_item_;
   QAction* help_feedback_item_;