- Add a verbose flag and put debugging output being it ("-v" || " --verbose")

- In verbose mode draw a thumbnail of the source image in the bottom left of the window
- Add support for long options in the command line parsing
- Add a "stretch" argument that will stretch the aspect axis to fit the window when set. For example, in landscape mode the drawn picture will be as wide as the window, cropping the top and bottom

src/mainwindow.h

@@ -25,13 +25,18 @@ public:
     void setBackgroundOpacity(unsigned int opacity);
     void warn(std::string text);
     void setOverlay(Overlay* overlay);
-
+    void setAspect(char aspect);
+    void setDebugMode(bool debugMode) {_debugMode = debugMode;}
+    void setFitAspectAxisToWindow(bool fitAspectAxisToWindow) { _fitAspectAxisToWindow = fitAspectAxisToWindow; }
 private:
     Ui::MainWindow *ui;
 
     std::string currentImage;
     unsigned int blurRadius = 20;
     unsigned int backgroundOpacity = 150;
+    char _aspect = 'a';
+    bool _debugMode = false;
+    bool _fitAspectAxisToWindow = false;
 
     Overlay* overlay;