library: libGui
#include "TGNumberEntry.h"

TGNumberEntryField


class description - source file - inheritance tree (.pdf)

class TGNumberEntryField : public TGTextEntry, public TGNumberFormat

Inheritance Chart:
TObject
<-
TGObject
<-
TGWindow
TQObject
<-
TGFrame
TGWidget
<-
TGTextEntry
TGNumberFormat
<-
TGNumberEntryField

    public:
TGNumberEntryField(const TGWindow* p, Int_t id, Double_t val, GContext_t norm, FontStruct_t font = GetDefaultFontStruct(), UInt_t option = kSunkenFrame|kDoubleBorder, Pixel_t back = GetWhitePixel()) TGNumberEntryField(const TGWindow* parent = 0, Int_t id = -1, Double_t val = 0, TGNumberFormat::EStyle style = kNESReal, TGNumberFormat::EAttribute attr = kNEAAnyNumber, TGNumberFormat::ELimit limits = kNELNoLimits, Double_t min = 0, Double_t max = 1) TGNumberEntryField(const TGNumberEntryField&) ~TGNumberEntryField() static TClass* Class() virtual Int_t GetCharWidth(const char* text = "0") const virtual void GetDate(Int_t& year, Int_t& month, Int_t& day) const virtual ULong_t GetHexNumber() const virtual Long_t GetIntNumber() const virtual TGNumberFormat::EAttribute GetNumAttr() const virtual Double_t GetNumber() const virtual TGNumberFormat::ELimit GetNumLimits() const virtual Double_t GetNumMax() const virtual Double_t GetNumMin() const virtual TGNumberFormat::EStyle GetNumStyle() const virtual void GetTime(Int_t& hour, Int_t& min, Int_t& sec) const virtual Bool_t HandleFocusChange(Event_t* event) virtual Bool_t HandleKey(Event_t* event) virtual void IncreaseNumber(TGNumberFormat::EStepSize step = kNSSSmall, Int_t sign = 1, Bool_t logstep = kFALSE) virtual TClass* IsA() const virtual Bool_t IsLogStep() const virtual void Layout() virtual void ReturnPressed() virtual void SetDate(Int_t year, Int_t month, Int_t day) virtual void SetFormat(TGNumberFormat::EStyle style, TGNumberFormat::EAttribute attr = kNEAAnyNumber) virtual void SetHexNumber(ULong_t val) virtual void SetIntNumber(Long_t val) virtual void SetLimits(TGNumberFormat::ELimit limits = kNELNoLimits, Double_t min = 0, Double_t max = 1) virtual void SetLogStep(Bool_t on = kTRUE) virtual void SetNumber(Double_t val) virtual void SetState(Bool_t state) virtual void SetText(const char* text) virtual void SetTime(Int_t hour, Int_t min, Int_t sec) virtual void ShowMembers(TMemberInspector& insp, char* parent) virtual void Streamer(TBuffer& b) void StreamerNVirtual(TBuffer& b) virtual void TextChanged(const char* text = "0")

Data Members


    protected:
Bool_t fNeedsVerification Needs verification of input TGNumberFormat::EStyle fNumStyle Number style TGNumberFormat::EAttribute fNumAttr Number attribute TGNumberFormat::ELimit fNumLimits Limit attributes Double_t fNumMin Lower limit Double_t fNumMax Upper limit Bool_t fStepLog Logarithmic steps for increase?

Class Description

                                                                      
 TGNumberEntry, TGNumberEntryField and TGNumberFormat                 
                                                                      
 TGNumberEntry is a number entry input widget with up/down buttons.   
 TGNumberEntryField is a number entry input widget.                   
 TGNumberFormat contains enum types to specify the numeric format.    
                                                                      
 The number entry widget is based on TGTextEntry but allows only      
 numerical input. The widget support numerous formats including       
 integers, hex numbers, real numbers, fixed fraction reals and        
 time/date formats. The widget also allows to restrict input values   
 to non-negative or positive numbers and to specify explicit limits.  
                                                                      
 The following styles are supported:                                  
 kNESInteger:        integer number                                   
 kNESRealOne:        real number with one digit (no exponent)         
 kNESRealTwo:        real number with two digits (no exponent)        
 kNESRealThree:      real number with three digits (no exponent)      
 kNESRealFour:       real number with four digits (no exponent)       
 kNESReal:           arbitrary real number                            
 kNESDegree:         angle in degree:minutes:seconds format           
 kNESMinSec:         time in minutes:seconds format                   
 kNESHourMin:        time in hour:minutes format                      
 kNESHourMinSec:     time in hour:minutes:seconds format              
 kNESDayMYear:       date in day/month/year format                    
 kNESMDayYear:       date in month/day/year format                    
 kNESHex:            hex number                                       
                                                                      
 The following attributes can be specified:                           
 kNEAAnyNumber:      any number is allowed                            
 kNEANonNegative:    only non-negative numbers are allowed            
 kNEAPositive:       only positive numbers are allowed                
                                                                      
 Explicit limits can be specified individually:                       
 kNELNoLimits:       no limits                                        
 kNELLimitMin:       lower limit only                                 
 kNELLimitMax        upper limit only                                 
 kNELLimitMinMax     both lower and upper limits                      
                                                                      
 TGNumberEntryField is a plain vanilla entry field, whereas           
 TGNumberEntry adds two small buttons to increase and decrease the    
 numerical value in the field. The number entry widgets also support  
 using the up and down cursor keys to change the numerical values.    
 The step size can be selected with control and shift keys:           
 --                  small step (1 unit/factor of 3)                  
 shift               medium step (10 units/factor of 10)              
 control             large step (100 units/factor of 30)              
 shift-control       huge step (1000 units/factor of 100)             
                                                                      
 The steps are either linear or logarithmic. The default behaviour    
 is set when the entry field is created, but it can be changed by     
 pressing the alt key at the same time.                               
                                                                      
 Changing the number in the widget will generate the event:           
 kC_TEXTENTRY, kTE_TEXTCHANGED, widget id, 0.                         
 Hitting the enter key will generate:                                 
 kC_TEXTENTRY, kTE_ENTER, widget id, 0.                               
 Hitting the tab key will generate:                                   
 kC_TEXTENTRY, kTE_TAB, widget id, 0.                                 
                                                                      
/* */


TGNumberEntryField(const TGWindow * p, Int_t id, Double_t val, GContext_t norm, FontStruct_t font, UInt_t option, ULong_t back) : TGTextEntry(p, new TGTextBuffer(), id, norm, font, option, back), fNeedsVerification(kFALSE), fNumStyle(kNESReal), fNumAttr(kNEAAnyNumber), fNumLimits(kNELNoLimits)
 Constructs a number entry field

TGNumberEntryField(const TGWindow * parent, Int_t id, Double_t val, EStyle style, EAttribute attr, ELimit limits, Double_t min, Double_t max) : TGTextEntry(parent, "", id), fNeedsVerification(kFALSE), fNumStyle(style), fNumAttr(attr), fNumLimits(limits), fNumMin(min), fNumMax(max)
 Constructs a number entry field

void SetNumber(Double_t val)
 Set the numeric value (floating point representation)

void SetIntNumber(Long_t val)
 Set the numeric value (integer representation)

void SetTime(Int_t hour, Int_t min, Int_t sec)
 Set the numeric value (time format)

void SetDate(Int_t year, Int_t month, Int_t day)
 Set the numeric value (date format)

void SetHexNumber(ULong_t val)
 Set the numeric value (hex format)

void SetText(const char *text)
 Set the value (text format)

Double_t GetNumber() const
 Get the numeric value (floating point representation)

Long_t GetIntNumber() const
 Get the numeric value (integer representation)

void GetTime(Int_t & hour, Int_t & min, Int_t & sec) const
 Get the numeric value (time format)

void GetDate(Int_t & year, Int_t & month, Int_t & day) const
 Get the numeric value (date format)

ULong_t GetHexNumber() const
 Get the numeric value (hex format)

Int_t GetCharWidth(const char *text) const
 Get the text width in pixels

void IncreaseNumber(EStepSize step, Int_t stepsign, Bool_t logstep)
 Increase the number value

void SetFormat(EStyle style, EAttribute attr)
 Set the numerical format

void SetLimits(ELimit limits, Double_t min, Double_t max)
 Set the numerical limits.

void SetState(Bool_t state)
 Set the active state

Bool_t HandleKey(Event_t * event)
 Handle keys

Bool_t HandleFocusChange(Event_t * event)
 Handle focus change

void TextChanged(const char *text)
 Text has changed message

void ReturnPressed()
 Return was pressed

void Layout()
 Layout



Inline Functions


                              void ~TGNumberEntryField()
                              void SetLogStep(Bool_t on = kTRUE)
            TGNumberFormat::EStyle GetNumStyle() const
        TGNumberFormat::EAttribute GetNumAttr() const
            TGNumberFormat::ELimit GetNumLimits() const
                          Double_t GetNumMin() const
                          Double_t GetNumMax() const
                            Bool_t IsLogStep() const
                           TClass* Class()
                           TClass* IsA() const
                              void ShowMembers(TMemberInspector& insp, char* parent)
                              void Streamer(TBuffer& b)
                              void StreamerNVirtual(TBuffer& b)
                TGNumberEntryField TGNumberEntryField(const TGNumberEntryField&)


Author: Daniel Sigg 03/09/2001
Last update: root/gui:$Name: $:$Id: TGNumberEntry.cxx,v 1.14 2005/09/05 14:52:00 brun Exp $
Copyright (C) 1995-2001, Rene Brun and Fons Rademakers. *


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