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TNNode.cxx

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00001 #include "bfemDisplay/TNNode.h"
00002 
00003 #include "TObject.h"
00004 #include "TBuffer.h"
00005 #include "TNamed.h"
00006 #include "TROOT.h"
00007 #include "TClass.h"
00008 #include "TVirtualPad.h"
00009 #include "TView.h"
00010 #include "TGeometry.h"
00011 #include "TRotMatrix.h"
00012 #include "TShape.h"
00013 #include "TNode.h"
00014 #include "TBrowser.h"
00015 #include "X3DBuffer.h"
00016 
00017 #include "TPadView3D.h"
00018 
00019 
00020 ClassImp(TNNode)
00021 
00022   Int_t TNNode::DistancetoPrimitive(Int_t px, Int_t py)

00023 {
00024   //*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
00025   // Ho modificato questa funzione in modo tale che, quando il mouse e`
00026   // ad una distanza inferiore a maxdist, l'oggetto selezionato e'
00027   // fRefObject ...
00028 
00029    const Int_t big = 9999;
00030    const Int_t inaxis = 7;
00031    const Int_t maxdist = 3;
00032 
00033    Int_t puxmin = gPad->XtoAbsPixel(gPad->GetUxmin());
00034    Int_t puymin = gPad->YtoAbsPixel(gPad->GetUymin());
00035    Int_t puxmax = gPad->XtoAbsPixel(gPad->GetUxmax());
00036    Int_t puymax = gPad->YtoAbsPixel(gPad->GetUymax());
00037 
00038 //*-*- return if point is not in the user area
00039    if (px < puxmin - inaxis) return big;
00040    if (py > puymin + inaxis) return big;
00041    if (px > puxmax + inaxis) return big;
00042    if (py < puymax - inaxis) return big;
00043 
00044    TView *view =gPad->GetView();
00045    if (!view) return big;
00046 
00047 //*-*- Update translation vector and rotation matrix for new level
00048    if (fMatrix && gGeometry) {
00049       gGeometry->UpdateTempMatrix(fX,fY,fZ,fMatrix->GetMatrix(),fMatrix->IsReflection());
00050    }
00051 //*-*- Paint Referenced shape
00052    Int_t dist = big;
00053    if (fVisibility && fShape->GetVisibility()) {
00054       gNode = this;
00055       dist = fShape->DistancetoPrimitive(px,py);
00056       if (dist < maxdist) {
00057         gPad->SetCursor(kHand);
00058         if(fRefObject) { gPad->SetSelected(fRefObject); return 0; }
00059       }
00060    }
00061    if ( TestBit(kSonsInvisible) ) return dist;
00062    if (!gGeometry) return dist;
00063    
00064 //*-*- Loop on all sons
00065    Int_t nsons = 0;
00066    if (fNodes) nsons = fNodes->GetSize();
00067    Int_t dnode = dist;
00068    if (nsons) {
00069 
00070       gGeometry->PushLevel();
00071       TNode *node;
00072       TObject *obj;
00073       TIter  next(fNodes);
00074       while ((obj = next())) {
00075          node = (TNode*)obj;
00076          dnode = node->DistancetoPrimitive(px,py);
00077          if (dnode <= 0) break;
00078          if (dnode < dist) dist = dnode;
00079       }
00080       gGeometry->PopLevel();
00081    }
00082 
00083    if (gGeometry->GeomLevel()==0 && dnode > maxdist) {
00084       gPad->SetSelected(view);
00085       return 0;
00086    } else
00087       return dnode;
00088 }
00089 
00090 
00091 

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