TGDoubleSlider


class description - source file - inheritance tree

class TGDoubleSlider : public TGFrame, public TGWidget

    private:
public:
virtual void ~TGDoubleSlider() static TClass* Class() virtual Float_t GetMaxPosition() const virtual Float_t GetMinPosition() const virtual void GetPosition(Float_t& min, Float_t& max) const virtual void GetPosition(Float_t* min, Float_t* max) const virtual Bool_t HandleButton(Event_t* event) virtual Bool_t HandleMotion(Event_t* event) virtual TClass* IsA() const virtual void MapSubwindows() virtual void PositionChanged() virtual void Pressed() virtual void Released() virtual void SetPosition(Float_t min, Float_t max) virtual void SetRange(Float_t min, Float_t max) virtual void SetScale(Int_t scale) virtual void ShowMembers(TMemberInspector& insp, char* parent) virtual void Streamer(TBuffer& b) void StreamerNVirtual(TBuffer& b)

Data Members

    private:
protected:
Float_t fPos logical position between fVmin and fVmax Float_t fSmin logical position of min value of Slider Float_t fSmax logical position of max value of Slider Int_t fRelPos slider position in pixel coordinates Float_t fVmin logical lower limit of slider Float_t fVmax logical upper limit of slider Int_t fScale tick mark scale Int_t fScaleType tick mark scale type (no, downright, both) Bool_t fDragging true if in dragging mode Int_t fPressPoint mouse position at button press event Float_t fPressSmin logical min position at button press event Float_t fPressSmax logical max position at button press event Int_t fMove 1: move min value Bool_t fReversedScale reverse which end is min and max Bool_t fMarkEnds lines marking where stretch zones begin public:


See also

TGDoubleHSlider, TGDoubleVSlider

Class Description

                                                                      
 TGDoubleSlider, TGDoubleVSlider and TGDoubleHSlider                  
                                                                      
 DoubleSlider widgets allow easy selection of a min and a max value   
 out of a range.                                                      
 DoubleSliders can be either horizontal or vertical oriented and      
 there is a choice of three different types of tick marks.            
                                                                      
 To change the min value press the mouse near to the left / bottom    
 edge of the slider.                                                  
 To change the max value press the mouse near to the right / top      
 edge of the slider.                                                  
 To change both values simultaneously press the mouse near to the     
 center of the slider.                                                
                                                                      
 TGDoubleSlider is an abstract base class. Use the concrete           
 TGDoubleVSlider and TGDoubleHSlider.                                 
                                                                      
 Dragging the slider will generate the event:                         
 kC_VSLIDER, kSL_POS, slider id, 0  (for vertical slider)             
 kC_HSLIDER, kSL_POS, slider id, 0  (for horizontal slider)           
                                                                      
 Pressing the mouse will generate the event:                          
 kC_VSLIDER, kSL_PRESS, slider id, 0  (for vertical slider)           
 kC_HSLIDER, kSL_PRESS, slider id, 0  (for horizontal slider)         
                                                                      
 Releasing the mouse will generate the event:                         
 kC_VSLIDER, kSL_RELEASE, slider id, 0  (for vertical slider)         
 kC_HSLIDER, kSL_RELEASE, slider id, 0  (for horizontal slider)       
                                                                      
 Use the functions GetMinPosition(), GetMaxPosition() and             
 GetPosition() to retrieve the position of the slider.                
                                                                      




Inline Functions


             Bool_t HandleButton(Event_t* event)
             Bool_t HandleMotion(Event_t* event)
               void SetScale(Int_t scale)
               void SetRange(Float_t min, Float_t max)
               void SetPosition(Float_t min, Float_t max)
            Float_t GetMinPosition() const
            Float_t GetMaxPosition() const
               void GetPosition(Float_t& min, Float_t& max) const
               void GetPosition(Float_t* min, Float_t* max) const
               void MapSubwindows()
               void PositionChanged()
               void Pressed()
               void Released()
            TClass* Class()
            TClass* IsA() const
               void ShowMembers(TMemberInspector& insp, char* parent)
               void Streamer(TBuffer& b)
               void StreamerNVirtual(TBuffer& b)
               void ~TGDoubleSlider()


Author: Reiner Rohlfs 30/09/98
Last update: root/gui:$Name: $:$Id: TGDoubleSlider.cxx,v 1.5 2001/06/07 11:14:19 rdm Exp $
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *


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