TGScrollBar

class TGScrollBar : public TGFrame, public TGWidget

    public:

         virtual void ~TGScrollBar()
       static TClass* Class()
         virtual void DrawBorder()
      static Pixmap_t GetBckgndPixmap()
        virtual Int_t GetPageSize() const
        virtual Int_t GetPosition() const
        virtual Int_t GetRange() const
         static Int_t GetScrollBarWidth()
                 void GrabPointer(Bool_t grab)
       virtual Bool_t HandleButton(Event_t* event)
       virtual Bool_t HandleMotion(Event_t* event)
       virtual Bool_t HandleTimer(TTimer* t)
      virtual TClass* IsA() const
         virtual void Layout()
         virtual void MapSubwindows()
         virtual void SetPosition(Int_t pos)
         virtual void SetRange(Int_t range, Int_t page_size)
         virtual void ShowMembers(TMemberInspector& insp, char* parent)
         virtual void Streamer(TBuffer& b)
                 void StreamerNVirtual(TBuffer& b)

Data Members

    protected:

                    Int_t fX0               
                    Int_t fY0               current slider position in pixels
                    Int_t fXp               
                    Int_t fYp               previous slider position in pixels
                   Bool_t fDragging         in dragging mode?
                   Bool_t fGrabPointer      grab pointer when dragging
                    Int_t fRange            logical upper range of scrollbar
                    Int_t fPsize            logical page size of scrollbar
                    Int_t fPos              logical current position
                    Int_t fSliderSize       logical slider size
                    Int_t fSliderRange      logical slider range
      TGScrollBarElement* fHead             head button of scrollbar
      TGScrollBarElement* fTail             tail button of scrollbar
      TGScrollBarElement* fSlider           slider
         const TGPicture* fHeadPic          picture in head (up or left arrow)
         const TGPicture* fTailPic          picture in tail (down or right arrow)
                  TTimer* fRepeat           repeat rate timer (when mouse stays pressed)
                 Window_t fSubw             sub window in which mouse is pressed
          static Pixmap_t fgBckgndPixmap    
             static Int_t fgScrollBarWidth  

See also

TGHScrollBar, TGVScrollBar

Class Description

                                                                      
 TGScrollBar and TGScrollBarElement                                   
                                                                      
 The classes in this file implement scrollbars. Scrollbars can be     
 either placed horizontal or vertical. A scrollbar contains three     
 TGScrollBarElements: The "head", "tail" and "slider". The head and   
 tail are fixed at either end and have the typical arrows in them.    
                                                                      
 The TGHScrollBar will generate the following event messages:         
 kC_HSCROLL, kSB_SLIDERPOS, position, 0                               
 kC_HSCROLL, kSB_SLIDERTRACK, position, 0                             
                                                                      
 The TGVScrollBar will generate the following event messages:         
 kC_VSCROLL, kSB_SLIDERPOS, position, 0                               
 kC_VSCROLL, kSB_SLIDERTRACK, position, 0                             
                                                                      

 Delete a scrollbar (either horizontal or vertical).

 Handle repeat timer for horizontal or vertical scrollbar. Every time
 timer times out we move slider.

 Static method returning scrollbar background pixmap.

 Static method returning the scrollbar width.

Inline Functions

               void GrabPointer(Bool_t grab)
               void DrawBorder()
             Bool_t HandleButton(Event_t* event)
             Bool_t HandleMotion(Event_t* event)
               void Layout()
               void SetRange(Int_t range, Int_t page_size)
               void SetPosition(Int_t pos)
              Int_t GetPosition() const
              Int_t GetPageSize() const
              Int_t GetRange() const
               void MapSubwindows()
            TClass* Class()
            TClass* IsA() const
               void ShowMembers(TMemberInspector& insp, char* parent)
               void Streamer(TBuffer& b)
               void StreamerNVirtual(TBuffer& b)