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   AddFrame(fAutoButton,new TGLayoutHints(kLHintsExpandX,0,0,topBorder,0));
  80
  81   fAutoButton->Connect("Clicked()","AliMUONPainterColorSlider",this,"DataRangeAutoRequested()");
  82
  83   AddFrame(fLockButton,new TGLayoutHints(kLHintsExpandX,0,0,topBorder,0));
  84
  85   fLockButton->Connect("Clicked()","AliMUONPainterColorSlider",this,"LockButtonWasClicked()");
  86
  87   fEntryMax->Connect("ValueSet(Long_t)","AliMUONPainterColorSlider",this,"DataRangeWasChanged(Double_t*)");
  88   fEntryMin->Connect("ValueSet(Long_t)","AliMUONPainterColorSlider",this,"DataRangeWasChanged(Double_t*)");
  89 }
  90
  91 //_____________________________________________________________________________
  92 AliMUONPainterColorSlider::~AliMUONPainterColorSlider()
  93 {
  94   /// dtor
  95 }
  96
  97 //_____________________________________________________________________________
  98 void
  99 AliMUONPainterColorSlider::DataRangeAutoRequested()
 100 {
 101   /// Signal that the "Auto" button was clicked
 102   AliDebug(1,"");
 103   Emit("DataRangeAutoRequested()");
 104 }
 105
 106 //_____________________________________________________________________________
 107 void
 108 AliMUONPainterColorSlider::DataRangeWasChanged(Double_t*)
 109 {
 110   /// Data range was changed
 111
 112   Double_t values[] = { fEntryMin->GetNumber(), fEntryMax->GetNumber() };
 113
 114   Long_t param[] = { (Long_t)values };
 115
 116   AliDebug(1,Form("double min %e max %e",values[0],values[1]));
 117
 118   Emit("DataRangeWasChanged(Double_t*)",param);
 119 }
 120
 121 //_____________________________________________________________________________
 122 Bool_t
 123 AliMUONPainterColorSlider::IsLocked() const
 124 {
 125   /// Whether our range is locked or not
 126
 127   return (fLockButton->GetString() == "Unlock"); // if we can unlock it means we are locked...
 128 }
 129
 130 //_____________________________________________________________________________
 131 void
 132 AliMUONPainterColorSlider::LockButtonWasClicked()
 133 {
 134   /// Lock (toggle button) was clicked
 135
 136   if ( IsLocked() )
 137   {
 138     // unlock it
 139     fLockButton->SetText("Lock");
 140     fEntryMin->SetState(kTRUE);
 141     fEntryMax->SetState(kTRUE);
 142     fAutoButton->SetEnabled(kTRUE);
 143   }
 144   else
 145   {
 146     // lock it
 147     fLockButton->SetText("Unlock");
 148     fEntryMin->SetState(kFALSE);
 149     fEntryMax->SetState(kFALSE);
 150     fAutoButton->SetEnabled(kFALSE);
 151   }
 152 }
 153
 154 //_____________________________________________________________________________
 155 void
 156 AliMUONPainterColorSlider::SetRange(Double_t min, Double_t max, Bool_t emit)
 157 {
 158   /// Set the data range
 159
 160   AliDebug(1,Form("min %e max %e emit %d",min,max,emit));
 161
 162   if ( !IsLocked() )
 163   {
 164     fMin = min;
 165     fMax = max;
 166
 167     fEntryMin->SetNumber(fMin);
 168     fEntryMax->SetNumber(fMax);
 169   }
 170
 171   if ( emit )
 172   {
 173     DataRangeWasChanged(0x0);
 174   }
 175 }
 176