Modernized code and fixed compiler warnings in Guisan widgets

external/libguisan/include/guisan/widgets/checkbox.hpp

@@ -176,7 +176,7 @@ namespace gcn
         /**
          * True if the check box is selected, false otherwise.
          */
-        bool mSelected;
+        bool mSelected{};
 
         /**
          * Holds the caption of the check box.

external/libguisan/include/guisan/widgets/dropdown.hpp

@@ -268,7 +268,7 @@ namespace gcn
          * checking if the list of the drop down was clicked or if the upper part
          * of the drop down was clicked on a mouse click
          */
-        int mFoldedUpHeight;
+        int mFoldedUpHeight{};
         
         /**
          * The scroll area used.

external/libguisan/include/guisan/widgets/listbox.hpp

@@ -222,7 +222,7 @@ namespace gcn
         /**
          * The list model to use.
          */
-        ListModel *mListModel;
+        ListModel *mListModel{};
 
         /**
          * The selected item as an index in the list model.

external/libguisan/include/guisan/widgets/progressbar.hpp

@@ -202,9 +202,9 @@ namespace gcn
          */
         unsigned int mAlignment;
         
-        unsigned int mStart; //! minimum value of the progressbar
-        unsigned int mEnd;   //! maximum value of the progressbar
-        unsigned int mValue; //! current value of the progressbar
+        unsigned int mStart{}; //! minimum value of the progressbar
+        unsigned int mEnd{};   //! maximum value of the progressbar
+        unsigned int mValue{}; //! current value of the progressbar
     };
 }
 

external/libguisan/include/guisan/widgets/radiobutton.hpp

@@ -193,7 +193,7 @@ namespace gcn
         /**
          * True if the radio button is selected, false otherwise.
          */
-        bool mSelected;
+        bool mSelected{};
 
         /**
          * Holds the caption of the radio button.

external/libguisan/include/guisan/widgets/scrollarea.hpp

@@ -468,8 +468,8 @@ namespace gcn
         int mScrollbarWidth;
         unsigned int mHPolicy;
         unsigned int mVPolicy;
-        bool mVBarVisible;
-        bool mHBarVisible;
+        bool mVBarVisible{};
+        bool mHBarVisible{};
         bool mUpButtonPressed;
         bool mDownButtonPressed;
         bool mLeftButtonPressed;
@@ -480,8 +480,8 @@ namespace gcn
         int mRightButtonScrollAmount;
         bool mIsVerticalMarkerDragged;
         bool mIsHorizontalMarkerDragged;
-        int mHorizontalMarkerDragOffset;
-        int mVerticalMarkerDragOffset;
+        int mHorizontalMarkerDragOffset{};
+        int mVerticalMarkerDragOffset{};
     };
 }
 

external/libguisan/include/guisan/widgets/slider.hpp

@@ -255,12 +255,12 @@ namespace gcn
         virtual int getMarkerPosition() const;
 
         bool mMouseDrag;
-        double mValue;
-        double mStepLength;
-        int mMarkerLength;
+        double mValue{};
+        double mStepLength{};
+        int mMarkerLength{};
         double mScaleStart;
         double mScaleEnd;
-        unsigned int mOrientation;
+        unsigned int mOrientation{};
     };
 }
 

external/libguisan/include/guisan/widgets/tab.hpp

@@ -137,7 +137,7 @@ namespace gcn
         
     protected:
         Label* mLabel;
-        TabbedArea* mTabbedArea;
+        TabbedArea* mTabbedArea{};
         std::string mCaption;
         bool mHasMouse;
     };

external/libguisan/include/guisan/widgets/window.hpp

@@ -203,13 +203,13 @@ namespace gcn
 
     protected:
         std::string mCaption;
-        unsigned int mAlignment;
-        unsigned int mPadding;
-        unsigned int mTitleBarHeight;
-        bool mMovable;
-        bool mOpaque;
-        int mDragOffsetX;
-        int mDragOffsetY;
+        unsigned int mAlignment{};
+        unsigned int mPadding{};
+        unsigned int mTitleBarHeight{};
+        bool mMovable{};
+        bool mOpaque{};
+        int mDragOffsetX{};
+        int mDragOffsetY{};
         bool mIsMoving;
     };
 }