added a stepsize of 1 in DoubleSpinBox for angle parameters

GUI/View/Common/DoubleFormatter.cpp

@@ -8,3 +8,11 @@ void DoubleFormatter::setPrecision(int digits){
 QString DoubleFormatter::textFromValue(double val) const {
     return QString::number(val,'f',m_precision);
 }
+
+void DoubleFormatter::setStepSize(double stepSize){
+    m_stepSize = stepSize;
+}
+
+double DoubleFormatter::getStepSize(){
+    return m_stepSize;
+}

GUI/View/Common/DoubleFormatter.h

@@ -7,7 +7,10 @@ public:
     DoubleFormatter() : m_precision(2){};
     QString textFromValue(double val) const;
     void setPrecision(int digits);
+    void setStepSize(double stepSize);
+    double getStepSize();
 private:
     int m_precision;
+    double m_stepSize;
 };
 #endif // NUMBERFORMATER_H

GUI/View/Common/DoubleSpinBox.cpp

@@ -109,6 +109,7 @@ void DoubleSpinBox::updateValue()
 }
 void DoubleSpinBox::setFormatter(DoubleFormatter formatter){
     m_formatter = formatter;
+    setSingleStep(m_formatter.getStepSize());
 }
 
 QString DoubleSpinBox::textFromValue(double val) const {

GUI/View/SampleDesigner/LayerEditorUtils.cpp

@@ -89,6 +89,7 @@ void LayerEditorUtils::addMultiPropertyToGrid(QGridLayout* m_gridLayout, int fir
         if(valueDescriptor.label == "Angle"){
             DoubleFormatter f;
             f.setPrecision(1);
+            f.setStepSize(1.0);
             editor->setFormatter(f);
         }
         QObject::connect(editor, &DoubleSpinBox::baseValueChanged,