flightgear/src/Cockpit/hud_labl.cxx

#include "hud.hxx"


#ifdef USE_HUD_TextList
#define textString( x , y, text, font,digit )  TextString( text, x , y,digit ) //suma
#else
#define textString( x , y, text, font,digit )  puDrawString ( guiFnt, text, x, y ); //suma
#endif

//======================= Top of instr_label class =========================
instr_label ::
         instr_label( int           x,
                      int           y,
                      UINT          width,
                      UINT          height,
                      FLTFNPTR      data_source,
                      const char   *label_format,
                      const char   *pre_label_string,
                      const char   *post_label_string,
                      float        scale_data,
                      UINT          options,
                      fgLabelJust   justification,
                      int           font_size,
                      int           blinking,
				      bool			latitude,
				      bool			longitude,
					  bool			label_box,//hud
                      bool          working,
					  int			digit):  //suma
                           instr_item( x, y, width, height,
                                       data_source,scale_data,options, working, digit), //suma
                           pformat  ( label_format      ),
                           pre_str  ( pre_label_string  ),
                           post_str ( post_label_string ),
                           justify  ( justification     ),
                           fontSize ( font_size         ),
                           blink    ( blinking          ),
						   lat		( latitude			),
						   lon		( longitude			),
						   lbox		( label_box			) //hud

{
  if( pre_str != NULL) {
    if( post_str != NULL ) {
      sprintf( format_buffer, "%s%s%s", pre_str, pformat, post_str );
      }
    else {
      sprintf( format_buffer, "%s%s",   pre_str, pformat );
      }
    }
  else {
    if( post_str != NULL ) {
      sprintf( format_buffer, "%s%s",   pformat, post_str );
      }
    } // else do nothing if both pre and post strings are nulls. Interesting.

}

// I put this in to make it easy to construct a class member using the current
// C code.


instr_label :: ~instr_label()
{
}

// Copy constructor
instr_label :: instr_label( const instr_label & image) :
                              instr_item((const instr_item &)image),
                              pformat    ( image.pformat    ),
                              pre_str  ( image.pre_str  ),
                              post_str ( image.post_str ),
                              blink    ( image.blink    ),
							  lat	   ( image.lat		),
							  lon	   ( image.lon		),	
							  lbox	   (image.lbox		) //hud

{
  if( pre_str != NULL) {
    if( post_str != NULL ) {
      sprintf( format_buffer, "%s%s%s", pre_str, pformat, post_str );
      }
    else {
      sprintf( format_buffer, "%s%s",   pre_str, pformat );
      }
    }
  else {
    if( post_str != NULL ) {
      sprintf( format_buffer, "%s%s",   pformat, post_str );
      }
    } // else do nothing if both pre and post strings are nulls. Interesting.

}

instr_label & instr_label ::operator = (const instr_label & rhs )
{
  if( !(this == &rhs)) {
    instr_item::operator = (rhs);
    pformat      = rhs.pformat;
    fontSize   = rhs.fontSize;
    blink      = rhs.blink;
    justify    = rhs.justify;
    pre_str    = rhs.pre_str;
    post_str   = rhs.post_str;
    lat		   = rhs.lat;
    lon		   = rhs.lon;
	lbox	   = rhs.lbox; //hud


    strcpy(format_buffer,rhs.format_buffer);	
    }
  return *this;
}

//
// draw                    Draws a label anywhere in the HUD
//
//
void instr_label ::
draw( void )       // Required method in base class
{
//  char format_buffer[80];
  char label_buffer[80];
  int posincr;
  int lenstr;
  RECT  scrn_rect = get_location();

  if( data_available() ) {
	if(lat)
		sprintf( label_buffer, format_buffer, coord_format_lat(get_value()) );
	else
	if(lon)    
		sprintf( label_buffer, format_buffer, coord_format_lon(get_value()) );
	else
	{	
		if(lbox)//hud
			{// Box for label
				float x = scrn_rect.left;
				float y = scrn_rect.top;
				float w = scrn_rect.right;
		        float h = HUD_TextSize;

				glPushMatrix();
				glLoadIdentity();
				glBegin(GL_LINES);
					glVertex2f( x - 2.0,  y - 2.0);
					glVertex2f( x + w + 2.0, y - 2.0);
					glVertex2f( x + w + 2.0, y + h + 2.0);
					glVertex2f( x - 2.0,  y + h + 2.0);
				glEnd();
		        glEnable(GL_LINE_STIPPLE);
				glLineStipple( 1, 0xAAAA );
				glBegin(GL_LINES);
					glVertex2f( x + w + 2.0, y - 2.0);
					glVertex2f( x + w + 2.0, y + h + 2.0);
					glVertex2f( x - 2.0,  y + h + 2.0);
					glVertex2f( x - 2.0,  y - 2.0);
				glEnd();
		        glDisable(GL_LINE_STIPPLE);
				glPopMatrix();
			}//hud
		sprintf( label_buffer, format_buffer, get_value()*data_scaling() );
	}
  }
  else {
//    sprintf( label_buffer, format_buffer );
  }
  
  lenstr = getStringWidth( label_buffer );
						
    
#ifdef DEBUGHUD
  fgPrintf( SG_COCKPIT, SG_DEBUG,  format_buffer );
  fgPrintf( SG_COCKPIT, SG_DEBUG,  "\n" );
  fgPrintf( SG_COCKPIT, SG_DEBUG, label_buffer );
  fgPrintf( SG_COCKPIT, SG_DEBUG, "\n" );
#endif
  lenstr = strlen( label_buffer );

  if( justify == RIGHT_JUST ) {
	  posincr = scrn_rect.right - lenstr;
  }else if( justify == CENTER_JUST ) {
	  posincr = get_span() - (lenstr/2); //  -lenstr*4;
  }  else {
      //  justify == LEFT_JUST
      posincr = 0;  // 0;
  }
  
  if( fontSize == HUD_FONT_SMALL ) {
    textString( scrn_rect.left + posincr, scrn_rect.top,
                label_buffer, GLUT_BITMAP_8_BY_13 ,get_digits()); //suma
    }
  else  {
    if( fontSize == HUD_FONT_LARGE ) {
      textString( scrn_rect.left + posincr, scrn_rect.top,
                  label_buffer, GLUT_BITMAP_9_BY_15 ,get_digits()); //suma
      }
    }
}