MUON/mapping/AliMpVPainter.cxx

   1 // $Id$
   2 // Category: graphics
   3 //
   4 // Class AliMpVPainter
   5 // --------------
   6 // Class for drawing objects into canvas
   7 // Included in AliRoot: 2003/05/02
   8 // Authors: David Guez, IPN Orsay
   9
  10 #include <TROOT.h>
  11 #include <TList.h>
  12 #include <TVirtualX.h>
  13 #include <TPad.h>
  14 #include <TError.h>
  15
  16 #include "AliMpVPainter.h"
  17 #include "AliMpGraphContext.h"
  18 #include "AliMpSector.h"
  19 #include "AliMpRow.h"
  20 #include "AliMpZone.h"
  21 #include "AliMpSubZone.h"
  22 #include "AliMpVRowSegment.h"
  23 #include "AliMpMotifPosition.h"
  24 #include "AliMpSectorPainter.h"
  25 #include "AliMpRowPainter.h"
  26 #include "AliMpZonePainter.h"
  27 #include "AliMpSubZonePainter.h"
  28 #include "AliMpRowSegmentPainter.h"
  29 #include "AliMpMotifPainter.h"
  30
  31 ClassImp(AliMpVPainter)
  32
  33 //_______________________________________________________________________
  34 AliMpVPainter::AliMpVPainter()
  35   : TObject(),
  36     fColor(2)
  37 {
  38   // Default constructor
  39   AliMpGraphContext *gr = AliMpGraphContext::Instance();
  40   fPadPosition  =  gr->GetPadPosition();
  41   fPadDimensions =  gr->GetPadDimensions();
  42   fColor=gr->GetColor();
  43   fTrashList = new TList;
  44 }
  45
  46 //_____________________________________________________________________________
  47 AliMpVPainter::AliMpVPainter(const AliMpVPainter& right)
  48   : TObject(right)
  49 {
  50   // copy constructor (not implemented)
  51
  52   Fatal("AliMpVPainter", "Copy constructor not provided.");
  53 }
  54
  55 //_______________________________________________________________________
  56 AliMpVPainter::~AliMpVPainter()
  57 {
  58   // Default destructor
  59   if (fTrashList){
  60     fTrashList->Delete();
  61     delete fTrashList;
  62   }
  63 }
  64
  65 //_____________________________________________________________________________
  66 AliMpVPainter& AliMpVPainter::operator=(const AliMpVPainter& right)
  67 {
  68   // assignement operator (not implemented)
  69
  70   // check assignement to self
  71   if (this == &right) return *this;
  72
  73   Fatal("operator =", "Assignement operator not provided.");
  74
  75   return *this;
  76 }
  77
  78 //_______________________________________________________________________
  79 Bool_t AliMpVPainter::IsInside(const TVector2 &point,const TVector2& pos,const TVector2& dim)
  80 {
  81   // does the point <point> inside the area (pos,dim)
  82   return ( (TMath::Abs(point.X()-pos.X())<dim.X() ) && (TMath::Abs(point.Y()-pos.Y())<dim.Y() ) );
  83 }
  84
  85 //_______________________________________________________________________
  86 Int_t AliMpVPainter::DistancetoPrimitive(Int_t x, Int_t y)
  87 {
  88   // dist to the center if (x,y) is inside the box defined by (fPadPosition,fPadDimensions)
  89   // 9999 otherwise
  90    TVector2 point = TVector2(gPad->AbsPixeltoX(x), gPad->AbsPixeltoY(y));
  91    if ( IsInside(point,fPadPosition,fPadDimensions))
  92      return (Int_t)(point-fPadPosition).Mod();
  93    else
  94      return 9999;
  95 }
  96
  97 //_______________________________________________________________________
  98 void AliMpVPainter::DumpObject() const
  99 {
 100   // Dump the painted object
 101 }
 102
 103 //_______________________________________________________________________
 104 TObject* AliMpVPainter::Clone(const char* newname) const
 105 {
 106   // create a clone of this object
 107   AliMpVPainter *newobj = (AliMpVPainter *)TObject::Clone(newname);
 108   if (!newobj) return 0;
 109   AliMpGraphContext *gr = AliMpGraphContext::Instance();
 110   newobj->fPadPosition  =  gr->GetPadPosition();
 111   newobj->fPadDimensions =  gr->GetPadDimensions();
 112   return newobj;
 113 }
 114
 115 //_______________________________________________________________________
 116 TObject* AliMpVPainter::DrawClone(Option_t* option) const
 117 {
 118   // draw the clone object
 119   TVirtualPad *pad = gROOT->GetSelectedPad();
 120   TVirtualPad *padsav = gPad;
 121
 122   TObject *newobj = Clone();
 123
 124   if (!newobj) return 0;
 125
 126   if (pad) pad->cd();
 127   newobj->Draw(option);
 128   if (padsav) padsav->cd();
 129   return newobj;
 130 }
 131
 132 //_______________________________________________________________________
 133 AliMpVPainter *AliMpVPainter::CreatePainter(TObject *object)
 134 {
 135   // create a new painter, which correspond to the
 136   // class of object
 137   AliMpVPainter *painter=0;
 138   if (object->InheritsFrom(AliMpSector::Class()))
 139     painter = new AliMpSectorPainter((AliMpSector *)object);
 140   else if (object->InheritsFrom(AliMpZone::Class()))
 141     painter = new AliMpZonePainter((AliMpZone *)object);
 142   else if (object->InheritsFrom(AliMpSubZone::Class()))
 143     painter = new AliMpSubZonePainter((AliMpSubZone *)object);
 144   else if (object->InheritsFrom(AliMpRow::Class()))
 145     painter = new AliMpRowPainter((AliMpRow *)object);
 146   else if (object->InheritsFrom(AliMpVRowSegment::Class()))
 147     painter = new AliMpRowSegmentPainter((AliMpVRowSegment *)object);
 148   else if (object->InheritsFrom(AliMpMotifPosition::Class()))
 149     painter = new AliMpMotifPainter((AliMpMotifPosition *)object);
 150
 151   return painter;
 152 }
 153
 154 //_______________________________________________________________________
 155 void AliMpVPainter::AddPainter(AliMpVPainter *painter)
 156 {
 157   // add a painter to the list of painters (private)
 158   fTrashList->Add(painter);
 159 }
 160
 161
 162 //_______________________________________________________________________
 163 AliMpVPainter *AliMpVPainter::DrawObject(TObject *object,Option_t *option)
 164 {
 165   // Draw the object
 166   // return the AliMpVPainter object created for the drawing
 167   AliMpVPainter *painter=CreatePainter(object);
 168
 169   if (painter){
 170     painter->Draw(option);
 171     AddPainter(painter);
 172   }
 173   return painter;
 174 }
 175
 176 //_______________________________________________________________________
 177 void AliMpVPainter::InitGraphContext()
 178 {
 179   // Set the pad and real area of the graphic context to
 180   // the one stored in this painter
 181
 182   AliMpGraphContext *gr = AliMpGraphContext::Instance();
 183   gr->SetPadPosition(fPadPosition);
 184   gr->SetPadDimensions(fPadDimensions);
 185   gr->SetRealPosition(GetPosition());
 186   gr->SetRealDimensions(GetDimensions());
 187   gVirtualX->SetFillColor(fColor);
 188   gVirtualX->SetTextColor(1);
 189   gVirtualX->SetLineColor(1);
 190 }
 191
 192 //_______________________________________________________________________
 193 void AliMpVPainter::PaintWholeBox(Bool_t fill)
 194 {
 195   // Paint the box around the total pad area given in this painter
 196   // fill it or bnot following the parameter value
 197
 198   Double_t x1,y1,x2,y2;
 199   x1 = fPadPosition.X()-fPadDimensions.X();
 200   y1 = fPadPosition.Y()-fPadDimensions.Y();
 201   x2 = fPadPosition.X()+fPadDimensions.X();
 202   y2 = fPadPosition.Y()+fPadDimensions.Y();
 203
 204   Style_t sty = gVirtualX->GetFillStyle();
 205   gVirtualX->SetFillStyle(fill?1:0);
 206   gPad->PaintBox(x1,y1,x2,y2);
 207   gVirtualX->SetFillStyle(0);
 208   gPad->PaintBox(x1,y1,x2,y2);
 209   gVirtualX->SetFillStyle(sty);
 210 }
 211
 212 //_______________________________________________________________________
 213 TVector2 AliMpVPainter::RealToPad(const TVector2& realPos)
 214 {
 215 // transform a real position into its equivalent position in a canvas
 216
 217   AliMpGraphContext *gr = AliMpGraphContext::Instance();
 218   gr->Push();
 219   gr->SetPadPosition(fPadPosition);
 220   gr->SetPadDimensions(fPadDimensions);
 221   gr->SetRealPosition(GetPosition());
 222   gr->SetRealDimensions(GetDimensions());
 223
 224
 225   TVector2 ans = gr->RealToPad(realPos);
 226   gr->Pop();
 227   return ans;
 228 }