MUON/AliMUONPainterColorSlider.cxx

   1 /**************************************************************************
   2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3 *                                                                        *
   4 * Author: The ALICE Off-line Project.                                    *
   5 * Contributors are mentioned in the code where appropriate.              *
   6 *                                                                        *
   7 * Permission to use, copy, modify and distribute this software and its   *
   8 * documentation strictly for non-commercial purposes is hereby granted   *
   9 * without fee, provided that the above copyright notice appears in all   *
  10 * copies and that both the copyright notice and this permission notice   *
  11 * appear in the supporting documentation. The authors make no claims     *
  12 * about the suitability of this software for any purpose. It is          *
  13 * provided "as is" without express or implied warranty.                  *
  14 **************************************************************************/
  15
  16 // $Id$
  17
  18 #include "AliMUONPainterColorSlider.h"
  19 #include "AliMUONPainterHelper.h"
  20 #include "AliLog.h"
  21 #include <TGNumberEntry.h>
  22 #include <TGButton.h>
  23 #include <TMath.h>
  24
  25 ///\class AliMUONPainterColorSlider
  26 ///
  27 /// A painter color palette
  28 ///
  29 ///\author Laurent Aphecetche, Subatech
  30
  31 ///\cond CLASSIMP
  32 ClassImp(AliMUONPainterColorSlider)
  33 ///\endcond
  34
  35 //_____________________________________________________________________________
  36 AliMUONPainterColorSlider::AliMUONPainterColorSlider(const TGWindow* p,
  37                                                      UInt_t w, UInt_t h)
  38 : TGCompositeFrame(p,w,h,kVerticalFrame),
  39   fEntryMin(0x0),
  40   fEntryMax(0x0),
  41   fMin(FLT_MAX),
  42   fMax(-FLT_MAX),
  43   fAutoButton(new TGTextButton(this,"Auto")),
  44   fLockButton(new TGTextButton(this,"Lock"))
  45 {
  46     /// ctor
  47     Int_t ndivisions(20);
  48
  49     Int_t hsize = (h-100)/(ndivisions+2);
  50   Int_t topBorder(5);
  51
  52   Double_t min(0.0);
  53   Double_t max(1.0);
  54
  55   Double_t step = (max-min)/ndivisions;
  56
  57   for ( Int_t i = -1; i <= ndivisions+1; ++i )
  58   {
  59     Double_t value = max - (min + step*i);
  60
  61     Int_t color = AliMUONPainterHelper::Instance()->ColorFromValue(value,
  62                                                                    min,max);
  63     Pixel_t pixel = gVirtualX->GetPixel(color);
  64     TGVerticalFrame* frame = new TGVerticalFrame(this,w,hsize,kFixedSize,pixel);
  65
  66     AddFrame(frame,new TGLayoutHints(kLHintsExpandX,0,0,topBorder,0));
  67
  68     topBorder = 0;
  69   }
  70
  71   fEntryMax = new TGNumberEntry(this);
  72
  73   AddFrame(fEntryMax,new TGLayoutHints(kLHintsExpandX,0,0,topBorder,0));
  74
  75   fEntryMin = new TGNumberEntry(this);
  76
  77   AddFrame(fEntryMin,new TGLayoutHints(kLHintsExpandX,0,0,topBorder,0));
  78
  79 //  fEntryMin->SetFormat(TGNumberFormat::kNESRealOne);
  80 //  fEntryMax->SetFormat(TGNumberFormat::kNESRealOne);
  81
  82   AddFrame(fAutoButton,new TGLayoutHints(kLHintsExpandX,0,0,topBorder,0));
  83
  84   fAutoButton->Connect("Clicked()","AliMUONPainterColorSlider",this,"DataRangeAutoRequested()");
  85
  86   AddFrame(fLockButton,new TGLayoutHints(kLHintsExpandX,0,0,topBorder,0));
  87
  88   fLockButton->Connect("Clicked()","AliMUONPainterColorSlider",this,"LockButtonWasClicked()");
  89
  90   fEntryMax->Connect("ValueSet(Long_t)","AliMUONPainterColorSlider",this,"DataRangeWasChanged(Double_t*)");
  91   fEntryMin->Connect("ValueSet(Long_t)","AliMUONPainterColorSlider",this,"DataRangeWasChanged(Double_t*)");
  92 }
  93
  94 //_____________________________________________________________________________
  95 AliMUONPainterColorSlider::~AliMUONPainterColorSlider()
  96 {
  97   /// dtor
  98 }
  99
 100 //_____________________________________________________________________________
 101 void
 102 AliMUONPainterColorSlider::DataRangeAutoRequested()
 103 {
 104   /// Signal that the "Auto" button was clicked
 105   AliDebug(1,"");
 106   Emit("DataRangeAutoRequested()");
 107 }
 108
 109 //_____________________________________________________________________________
 110 void
 111 AliMUONPainterColorSlider::DataRangeWasChanged(Double_t*)
 112 {
 113   /// Data range was changed
 114
 115   Double_t values[] = { fEntryMin->GetNumber(), fEntryMax->GetNumber() };
 116
 117   Long_t param[] = { (Long_t)values };
 118
 119   AliDebug(1,Form("double min %e max %e",values[0],values[1]));
 120
 121   Emit("DataRangeWasChanged(Double_t*)",param);
 122 }
 123
 124 //_____________________________________________________________________________
 125 Bool_t
 126 AliMUONPainterColorSlider::IsLocked() const
 127 {
 128   /// Whether our range is locked or not
 129
 130   return (fLockButton->GetString() == "Unlock"); // if we can unlock it means we are locked...
 131 }
 132
 133 //_____________________________________________________________________________
 134 void
 135 AliMUONPainterColorSlider::LockButtonWasClicked()
 136 {
 137   /// Lock (toggle button) was clicked
 138
 139   if ( IsLocked() )
 140   {
 141     // unlock it
 142     fLockButton->SetText("Lock");
 143     fEntryMin->SetState(kTRUE);
 144     fEntryMax->SetState(kTRUE);
 145     fAutoButton->SetEnabled(kTRUE);
 146   }
 147   else
 148   {
 149     // lock it
 150     fLockButton->SetText("Unlock");
 151     fEntryMin->SetState(kFALSE);
 152     fEntryMax->SetState(kFALSE);
 153     fAutoButton->SetEnabled(kFALSE);
 154   }
 155 }
 156
 157 //_____________________________________________________________________________
 158 void
 159 AliMUONPainterColorSlider::SetRange(Double_t min, Double_t max, Bool_t emit)
 160 {
 161   /// Set the data range
 162
 163   AliDebug(1,Form("min %e max %e emit %d",min,max,emit));
 164
 165   if ( !IsLocked() )
 166   {
 167     fMin = min;
 168     fMax = max;
 169
 170     fEntryMin->SetNumber(fMin);
 171     fEntryMax->SetNumber(fMax);
 172   }
 173
 174   if ( emit )
 175   {
 176     DataRangeWasChanged(0x0);
 177   }
 178 }
 179