path: root/src/Graphic2d/Graphic2d_FramedText.cxx

// S3824        10/06/98 : GG ;
//              1) Method "Fit" includes optional argument 
//                 "Expand" allowing to avoid adjusting text width
//                 when it is less then size of FIT.
//              2) Method "Trunc" allows trunkating the text to the 
//                 exact size.

#define PRO14304	//GG_160698

#define PERF    //GG_200898
//              The MinMax are now computed at the right time and no more
//              soon an attribute has change 
//              (see the redefined method ComputeMinMax()).

#define BUC60583        //GG_300999 Enable to compute correctly a
//                      Mirror transformation

#include <Graphic2d_FramedText.ixx>
#include <Aspect_WindowDriver.hxx>

#include <Graphic2d_Primitive.pxx>

Graphic2d_FramedText::Graphic2d_FramedText
   (const Handle(Graphic2d_GraphicObject)& aGraphicObject,
    const TCollection_ExtendedString& aText,
    const Standard_Real X, const Standard_Real Y,
    const Quantity_PlaneAngle anAngle,
    const Quantity_Ratio aMargin,
    const Aspect_TypeOfText aType,
    const Quantity_Factor aScale)
    : Graphic2d_Text (aGraphicObject,aText,X,Y,anAngle,aType,aScale),
	myMargin(Standard_ShortReal( aMargin )) {

    SetFrameColorIndex();
    SetFrameWidthIndex();

#ifndef PERF
    ComputeMinMax();
#endif
}

void Graphic2d_FramedText::SetFrameColorIndex (const Standard_Integer anIndex) {

        myFrameColorIndex = anIndex;
}

void Graphic2d_FramedText::SetFrameWidthIndex (const Standard_Integer anIndex) { 
        myFrameWidthIndex = anIndex;
 
}

void Graphic2d_FramedText::Draw (const Handle(Graphic2d_Drawer)& aDrawer) {
Standard_Boolean IsIn = Standard_False;
Standard_ShortReal hscale = (myIsZoomable) ? 
           Standard_ShortReal( myHScale * aDrawer->Scale() )
         : Standard_ShortReal( myHScale );
Standard_ShortReal wscale = (myIsZoomable) ? 
           Standard_ShortReal( myWScale * aDrawer->Scale() )
         : Standard_ShortReal( myWScale );
Standard_ShortReal ox = aDrawer->ConvertMapToFrom(myDeltax);
Standard_ShortReal oy = aDrawer->ConvertMapToFrom(myDeltay);

#ifdef PERF
        if( (myMaxX < myMinX) || (myMaxY < myMinY) ) {
	  if( !ComputeMinMax() ) return;
	}
#else
        if( myResetFlag ) {
	  ComputeMinMax();
        }   
#endif

        if (! myGOPtr->IsTransformed ()) {
          IsIn = aDrawer->IsIn (myMinX+ox,myMaxX+ox,myMinY+oy,myMaxY+oy);
          if (IsIn) {
            aDrawer->SetFramedTextAttrib(myColorIndex,myFrameColorIndex,
					myFrameWidthIndex,myFontIndex,
					mySlant,hscale,wscale,myIsUnderlined);
            Standard_ShortReal dx = myDx,dy = myDy;
            if( myAngle != 0. ) {
              Standard_ShortReal cosa = Standard_ShortReal( Cos(myAngle) );
              Standard_ShortReal sina = Standard_ShortReal( Sin(myAngle) );

              dx = XROTATE(myDx,myDy) ;
              dy = YROTATE(myDx,myDy) ;
            }
            aDrawer->MapFramedTextFromTo(myText,myX+dx,myY+dy,myAngle,myMargin,
                                                myDeltax,myDeltay,myType);
          }
        } else {
	  Standard_ShortReal minx,miny,maxx,maxy;
          gp_GTrsf2d aTrsf = myGOPtr->Transform ();
	  MinMax(minx,maxx,miny,maxy);
          IsIn = aDrawer->IsIn (minx+ox,maxx+ox,miny+oy,maxy+oy);
          if (IsIn) {
            Standard_Real A = Standard_Real (myX);
            Standard_Real B = Standard_Real (myY);
            Standard_Real C = Standard_Real (myAngle);
            Standard_Real cosa = Cos (C);
            Standard_Real sina = Sin (C);
            aTrsf.Transforms (A, B);

            Standard_ShortReal a = Standard_ShortReal (A);
            Standard_ShortReal b = Standard_ShortReal (B);
#ifdef BUC60583
            aTrsf.Transforms (cosa, sina);
            A = B = 0.;
            aTrsf.Transforms (A, B);
            cosa -= A; sina -= B;
            if( aTrsf.IsNegative() ) hscale = - hscale;
#else
	    // To calculate new aperture angles 
	    // the calculation is done on the trigonometric circle
	    // and taken into account in case of translation.
	    aTrsf.SetValue (1, 3, 0.0);
	    aTrsf.SetValue (2, 3, 0.0);
            aTrsf.Transforms (cosa, sina);
#endif
            Standard_ShortReal angle = Standard_ShortReal (atan2(sina,cosa));
            if( myIsZoomable ) {
              hscale *= Standard_ShortReal(Sqrt(cosa*cosa + sina*sina));
              wscale *= Standard_ShortReal (Sqrt(cosa*cosa + sina*sina));
            }

            aDrawer->SetFramedTextAttrib(myColorIndex,myFrameColorIndex,
					myFrameWidthIndex,myFontIndex,
					mySlant,hscale,wscale,myIsUnderlined);
            Standard_ShortReal dx = myDx,dy = myDy;
            if( angle != 0. ) {
              dx = Standard_ShortReal( XROTATE(myDx,myDy) );
              dy = Standard_ShortReal( YROTATE(myDx,myDy) );
            }
            a += dx; b += dy;
            aDrawer->MapFramedTextFromTo(myText,a,b,angle,myMargin,
                                                myDeltax,myDeltay,myType);
          }
        }
}


Standard_Boolean Graphic2d_FramedText::Pick (const Standard_ShortReal X,
				       const Standard_ShortReal Y,
				       const Standard_ShortReal aPrecision,
				       const Handle(Graphic2d_Drawer)& aDrawer) 
{
Standard_Boolean theStatus = Standard_False;
Standard_ShortReal width,height,xoffset,yoffset,mwidth,mheight;
Standard_ShortReal hscale = (myIsZoomable) ? 
         Standard_ShortReal( myHScale * aDrawer->Scale() )
       : Standard_ShortReal( myHScale );
Standard_ShortReal wscale = (myIsZoomable) ? 
         Standard_ShortReal( myWScale * aDrawer->Scale() )
       : Standard_ShortReal( myWScale );

Standard_ShortReal TX = X, TY = Y;
Standard_ShortReal ox = aDrawer->ConvertMapToFrom(myDeltax);
Standard_ShortReal oy = aDrawer->ConvertMapToFrom(myDeltay);

  if (IsInMinMax (X-ox, Y-oy, aPrecision)) {
    if (myGOPtr->IsTransformed ()) {
        gp_GTrsf2d aTrsf = (myGOPtr->Transform ()).Inverted ();
        Standard_Real RX = Standard_Real (X), RY = Standard_Real (Y);
        aTrsf.Transforms (RX, RY); 
        TX = Standard_ShortReal (RX); TY = Standard_ShortReal (RY);
    }
    aDrawer->SetTextAttrib(myColorIndex,myFontIndex,
					mySlant,hscale,wscale,myIsUnderlined);
    if( !aDrawer->GetTextSize(myText,width,height,xoffset,yoffset) ) {
      mwidth = mheight = width = height = xoffset = yoffset = 0.;
    } else {
      mwidth = mheight = height*myMargin;   
    }
    Standard_ShortReal cosa = Standard_ShortReal( Cos(-myAngle) );
    Standard_ShortReal sina = Standard_ShortReal( Sin(-myAngle) );
    Standard_ShortReal dx = TX-(myX+ox+myDx);
    Standard_ShortReal dy = TY-(myY+oy+myDy);
    Standard_ShortReal x = XROTATE(dx,dy);
    Standard_ShortReal y = YROTATE(dx,dy);
 
    theStatus =  (x >=  -mwidth + xoffset - aPrecision)
            &&   (x <= width + mwidth  + xoffset + aPrecision)
            &&   (y >= - mheight - yoffset - aPrecision)
            &&   (y <= height + mheight - yoffset + aPrecision);
  }
   
  return theStatus;
}

Standard_Boolean Graphic2d_FramedText::TextSize ( Quantity_Length &aWidth, 
                                            Quantity_Length &aHeight,
                                            Quantity_Length &anXoffset,
                                            Quantity_Length &anYoffset) const {
Handle(Graphic2d_Drawer) aDrawer = Drawer();
 
    if( !aDrawer.IsNull() && aDrawer->IsWindowDriver() ) {
        Standard_ShortReal hscale = (myIsZoomable) ? 
            Standard_ShortReal( myHScale * aDrawer->Scale() )
          : Standard_ShortReal( myHScale );
        Standard_ShortReal wscale = (myIsZoomable) ? 
            Standard_ShortReal( myWScale * aDrawer->Scale() )
          : Standard_ShortReal( myWScale );
        Standard_ShortReal width,height,xoffset,yoffset;
        aDrawer->SetTextAttrib(myColorIndex,myFontIndex,
                                        mySlant,hscale,wscale,myIsUnderlined);
                                         
        aDrawer->GetTextSize(myText,width,height,xoffset,yoffset);
        aWidth = width + 2.*height*myMargin;
        aHeight = height + 2.*height*myMargin;
	anXoffset = xoffset - height*myMargin;
        anYoffset = yoffset + height*myMargin;
        return Standard_True;
    } else {
        aWidth = aHeight = anXoffset = anYoffset = 0.;
        return Standard_False;
    }
 
}

Standard_Integer Graphic2d_FramedText::FrameColorIndex() const {

        return myFrameColorIndex;
}

Standard_Integer Graphic2d_FramedText::FrameWidthIndex() const {

        return myFrameWidthIndex;
}

Quantity_Ratio Graphic2d_FramedText::Margin() const {

        return Quantity_Ratio(myMargin);
}

Standard_Boolean Graphic2d_FramedText::Fit(const Quantity_Length aWidth,const Quantity_Length aHeight,const Standard_Boolean Adjust,const Standard_Boolean Expand) {
Quantity_Length twidth,theight,xoffset,yoffset;
Standard_ShortReal wscale,hscale;
Standard_Boolean status;

    myAdjustFlag = Adjust;
    if(( status = TextSize(twidth,theight,xoffset,yoffset) ) == Standard_True ) {
      wscale = Standard_ShortReal( aWidth/twidth );
      if( wscale > 0. ) {
        if( Expand || (twidth > aWidth) ) myWScale *= wscale;
      }
      hscale = Standard_ShortReal( aHeight/theight );
      if( hscale > 0. ) myHScale *= hscale;
#ifdef PERF
      myMinX = myMinY = ShortRealLast ();
      myMaxX = myMaxY = ShortRealFirst ();
#else
      myResetFlag = Standard_True;
      ComputeMinMax();
#endif
    }

    return status;
}

Standard_Boolean Graphic2d_FramedText::Trunc(const Quantity_Length aWidth) {
Quantity_Length twidth,theight,txoffset,tyoffset;
//Standard_ShortReal wscale,hscale;
Standard_Boolean status;

    if(( status = TextSize(twidth,theight,txoffset,tyoffset) ) == Standard_True ) {
      Standard_Integer l = myText.Length();
      while( (l > 1) && (twidth > aWidth) ) {
        --l;
        myText.Split(l);
        TextSize(twidth,theight,txoffset,tyoffset);
      }
#ifdef PERF
      myMinX = myMinY = ShortRealLast ();
      myMaxX = myMaxY = ShortRealFirst ();
#else
      myResetFlag = Standard_True;
      this->ComputeMinMax();
#endif
    }

    return status;
}

Standard_Boolean Graphic2d_FramedText::ComputeMinMax() {
Handle(Graphic2d_Drawer) aDrawer = Drawer();
Standard_Boolean status = Standard_False;

    if( !aDrawer.IsNull() && aDrawer->IsWindowDriver() ) {
	  Standard_ShortReal hscale = 
		(myIsZoomable) ? 
        Standard_ShortReal( myHScale * aDrawer->Scale() )
      : Standard_ShortReal( myHScale );
	  Standard_ShortReal wscale = 
		(myIsZoomable) ? 
        Standard_ShortReal( myWScale * aDrawer->Scale() )
      : Standard_ShortReal( myWScale );
      Standard_ShortReal width,height,xoffset,yoffset;
          aDrawer->SetTextAttrib(myColorIndex,myFontIndex,
					mySlant,hscale,wscale,myIsUnderlined);
          if(( status = aDrawer->GetTextSize(myText,width,height,xoffset,yoffset) ) == Standard_True ) {
            Standard_ShortReal dxm,dym;
#ifndef PERF
	    myResetFlag = Standard_False; 
#endif
            dxm = dym = height*myMargin ;

            switch( myAlignment ) {
              case Graphic2d_TOA_LEFT:
                myDx = myDy = 0.;
                break;
              case Graphic2d_TOA_RIGHT:
                myDx = -width; myDy = 0.;
                break;
              case Graphic2d_TOA_CENTER:
                myDx = Standard_ShortReal( -width/2. ); myDy = 0.;
                break;
              case Graphic2d_TOA_TOPLEFT:
                myDx = 0.; myDy = yoffset-height;
                break;
              case Graphic2d_TOA_TOPRIGHT:
                myDx = -width; myDy = yoffset-height;
                break;
              case Graphic2d_TOA_TOPCENTER:
                myDx = Standard_ShortReal( -width/2.); myDy = yoffset-height;
                break;
              case Graphic2d_TOA_MEDIUMLEFT:
                myDx = 0.; myDy = Standard_ShortReal( (yoffset-height)/2. );
                break;
              case Graphic2d_TOA_MEDIUMRIGHT:
                myDx = -width; myDy = Standard_ShortReal( (yoffset-height)/2. );
                break;
              case Graphic2d_TOA_MEDIUMCENTER:
                myDx = Standard_ShortReal( -width/2.); 
                myDy = Standard_ShortReal( (yoffset-height)/2. );
                break;
              case Graphic2d_TOA_BOTTOMLEFT:
                myDx = 0.; myDy = yoffset;
                break;
              case Graphic2d_TOA_BOTTOMRIGHT:
                myDx = -width; myDy = yoffset;
                break;
              case Graphic2d_TOA_BOTTOMCENTER:
                myDx = Standard_ShortReal( -width/2. ); myDy = yoffset;
                break;
            }
            if( myAdjustFlag ) {
              myDx += dxm - xoffset; myDy += dym + yoffset;
            }
            Standard_ShortReal xmin = myDx - dxm + xoffset;
            Standard_ShortReal ymin = myDy - dym - yoffset;
            Standard_ShortReal xmax = xmin + width + 2*dxm;
            Standard_ShortReal ymax = ymin + height + 2*dym;

            myMinX = myMinY = ShortRealLast();
            myMaxX = myMaxY = ShortRealFirst();
            if( myAngle != 0. ) {
              Standard_ShortReal cosa = Standard_ShortReal( Cos(myAngle) );
              Standard_ShortReal sina = Standard_ShortReal( Sin(myAngle) );
              Standard_ShortReal dx,dy;
 
              dx = XROTATE(xmin,ymin) ;
              dy = YROTATE(xmin,ymin) ;
              myMinX = Min(myMinX,myX+dx) ;
              myMinY = Min(myMinY,myY+dy) ;
              myMaxX = Max(myMaxX,myX+dx) ;
              myMaxY = Max(myMaxY,myY+dy) ;

              dx = XROTATE(xmin,ymax) ;
              dy = YROTATE(xmin,ymax) ;
              myMinX = Min(myMinX,myX+dx) ;
              myMinY = Min(myMinY,myY+dy) ;
              myMaxX = Max(myMaxX,myX+dx) ;
              myMaxY = Max(myMaxY,myY+dy) ;

              dx = XROTATE(xmax,ymax) ;
              dy = YROTATE(xmax,ymax) ;
              myMinX = Min(myMinX,myX+dx) ;
              myMinY = Min(myMinY,myY+dy) ;
              myMaxX = Max(myMaxX,myX+dx) ;
              myMaxY = Max(myMaxY,myY+dy) ;
 
              dx = XROTATE(xmax,ymin) ;
              dy = YROTATE(xmax,ymin) ;
              myMinX = Min(myMinX,myX+dx) ;
              myMinY = Min(myMinY,myY+dy) ;
              myMaxX = Max(myMaxX,myX+dx) ;
              myMaxY = Max(myMaxY,myY+dy) ;
            } else {
#ifdef PRO14304
              myMinX = Min(myMinX,myX+xmin) ;
              myMinY = Min(myMinY,myY+ymin) ;
              myMaxX = Max(myMaxX,myX+xmax) ;
              myMaxY = Max(myMaxY,myY+ymax) ;
#else
              myMinX = Min(myMinX,xmin) ;
              myMinY = Min(myMinY,ymin) ;
              myMaxX = Max(myMaxX,xmax) ;
              myMaxY = Max(myMaxY,ymax) ;
#endif
            }
          }
    }
#ifdef PERF
      else {
          cout << "*Graphic2d_FramedText::ComputeMinMax() returns wrong values*" << endl;
   }
#endif

    return status;
}

void Graphic2d_FramedText::Save(Aspect_FStream& aFStream) const
{
}