fix infinitive call bug

Author: sulincix

src/tools.h

@@ -46,6 +46,7 @@ extern QSlider *scrollVSlider;
 
 extern QWidget *mainWidget;
 
+extern void updateRatioButtons();
 extern void updateGoBackButtons();
 extern void backgroundStyleEvent();
 extern void penStyleEvent();

src/tools/background.cpp

@@ -95,7 +95,7 @@ void setupBackground(){
         if (!filename.isEmpty()) {
             board->overlays[drawing->getPageNum()] = QImage(filename);
             board->ratios[drawing->getPageNum()] = 100;
-            updateGoBackButtons();
+            updateRatioButtons();
         }
         floatingWidget->show();
         setHideMainWindow(false);
@@ -108,13 +108,13 @@ void setupBackground(){
 
     overlayScaleUp = create_button(":images/zoom-in.svg", [=](){
         board->ratios[drawing->getPageNum()] += 10;
-        updateGoBackButtons();
+        updateRatioButtons();
         board->update();
     });
 
     overlayScaleDown = create_button(":images/zoom-out.svg", [=](){
         board->ratios[drawing->getPageNum()] -= 10;
-        updateGoBackButtons();
+        updateRatioButtons();
         board->update();
     });
 

src/tools/update.cpp

@@ -102,16 +102,18 @@ void penSizeEvent(){
     thicknessLabel->setText(QString(_("Size:"))+QString(" ")+QString::number(value));
 }
 
+void updateRatioButtons(){
+    overlayScaleDown->setEnabled(board->ratios[drawing->getPageNum()] >= 30);
+    overlayScaleUp->setEnabled(board->ratios[drawing->getPageNum()] <= 200);
+}
+
 void updateGoBackButtons(){
     backButton->setEnabled(drawing->isBackAvailable());
     nextButton->setEnabled(drawing->isNextAvailable());
     previousPage->setEnabled(drawing->getPageNum() > 0);
     pageLabel->setText(QString::number(drawing->getPageNum()));
-    overlayScaleDown->setEnabled(board->ratios[drawing->getPageNum()] >= 30);
-    overlayScaleUp->setEnabled(board->ratios[drawing->getPageNum()] <= 200);
 }
 
-
 void backgroundStyleEvent(){
     transparentButton->setStyleSheet(QString("background-color: none;"));
     blackButton->setStyleSheet(QString("background-color: none;"));