Add support of leaves

sources/mainwindow.h

@@ -4,7 +4,7 @@
 #define KEY_TEMPLATE "template"
 #define KEY_YEARS "years"
 #define SAVE_FILENAME "data.json"
-#define SAVE_FILE_VERSION 3
+#define SAVE_FILE_VERSION 4
 #define KEY_SAVE_FILE_VERSION "version"
 
 #include <QMouseEvent>
@@ -25,7 +25,6 @@
 #include "models/week.h"
 #include "models/year.h"
 #include "welcome.h"
-#include "tools.h"
 #include "aboutbox.h"
 #include "weekoption.h"
 
@@ -52,13 +51,10 @@ private:
     void panic_dialog(QString text);
 
     // UI Update
-    void updateStartLabel();
-    void updateBreakLabel();
-    void updateEndLabel();
+    void updateLabels();
     void highlightDayOfWeek();
-    void updateValidIcon();
-    void updateWarningIcon();
     void updateWeekTime();
+    void updateDayLabels(QLabel *start, QLabel *end, QLabel *breaks, QFrame *validate, QFrame *warning, QFrame *not_working, Day *d);
 
     QString get_save_file_path();
     Identifier get_identifier(QString objectName);