redraw_legend.c

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#include "prototypes.h"
void redraw_legend(Drawable pixm)
 
{
 
extern int maxkscale;
extern int data_type;
extern char *ls[];
extern int legend_flag;
extern Font font[10];
extern XFontStruct *info_font[10];
extern int qlegend_save;
extern Display *display;
extern GC gc;
extern float delim[16];
extern unsigned long qmap[16];
extern unsigned long xmap[16];
extern int kscale;
extern Widget drawing_area;
extern int rs;
extern int legendysize,legendxsize;
extern Pixmap logo[4];
char buf[50];
int k,text_width;
Dimension width,height;
Arg args[10];
int legendystart;
int savekscale;
int i;
 
if(data_type==-1) {
 
                 /*nothing selected yet*/
 
                 legend_flag=-1;
                 return;
 
                  }
        
 
legendystart=legendysize+10;
 
XtSetArg(args[0],XtNwidth,&width);
XtSetArg(args[1],XtNheight,&height);
XtGetValues(drawing_area,args,2);
 
XSetForeground(display,gc,0);
XSetBackground(display,gc,0);
 
XSetFunction(display,gc,GXcopy);
XFillRectangle(display,pixm,gc,width-legendxsize+1,0,width,height);
 
XSetFont(display,gc,font[3]);
strcpy(buf,ls[legend_flag]);
XSetForeground(display,gc,qmap[15]);
text_width=XTextWidth(info_font[3],buf,strlen(buf));
XDrawString(display,pixm,gc,width-5-text_width,legendystart+5,buf,strlen(buf));
XSetFont(display,gc,font[1]);
 
for(k=0;k<16;k++) {
 
                  XSetForeground(display,gc,xmap[k]);
                  XFillRectangle(display,pixm,gc,width-rs-5,legendystart+(k+1)*rs,rs,rs);
                  if(qlegend_save==k) {
                      
                        XSetForeground(display,gc,qmap[15]);
                        XDrawRectangle(display,pixm,gc,width-rs-5,legendystart+(k+1)*rs,rs-1,rs-1);
 
              }
 
                  if(data_type != 13 && data_type != 14
                     && data_type != 15 && data_type != 16) {
 
                  if(k==15)
                    sprintf(buf,"> %4.1f",delim[14]);
           
                  else if(k==0 )
                    sprintf(buf,"< %4.1f",delim[k]);
                   
           
                  else
                    sprintf(buf,"%4.1f to %4.1f",delim[k-1],
                                                 delim[k]);
 
                  }
                  
                  else {
                  
                  if(k==15)
                    sprintf(buf,"> %4.1f",delim[15]);
           
                  
                  else
                    sprintf(buf,"%4.1f to %4.1f",delim[k],
                                                 delim[k+1]);
                                    
                       }
 
                  XSetForeground(display,gc,qmap[15]);
                  text_width=XTextWidth(info_font[1],buf,strlen(buf));
                  XDrawString(display,pixm,gc,width-rs-10-text_width,legendystart+(k+1)*rs+rs/2+3,buf,strlen(buf));
 
        }
 
XSetForeground(display,gc,qmap[15]);
 
XSetFillStyle(display,gc,FillStippled);
XSetStipple(display,gc,logo[0]);
XFillRectangle(display,pixm,gc,width-rs-5,legendystart+17*rs,rs,rs);
strcpy(buf,"filter down");                  
text_width=XTextWidth(info_font[1],buf,strlen(buf));
XSetFillStyle(display,gc,FillSolid);
XDrawString(display,pixm,gc,width-rs-10-text_width,legendystart+17*rs+rs/2+3,buf,strlen(buf));
 
XSetStipple(display,gc,logo[2]);
XSetFillStyle(display,gc,FillStippled);
XFillRectangle(display,pixm,gc,width-rs-5,legendystart+18*rs,rs,rs);
strcpy(buf,"filter up");                  
text_width=XTextWidth(info_font[1],buf,strlen(buf));
XSetFillStyle(display,gc,FillSolid);
XDrawString(display,pixm,gc,width-rs-10-text_width,legendystart+18*rs+rs/2+3,buf,strlen(buf));
 
XSetStipple(display,gc,logo[0]);
XSetFillStyle(display,gc,FillStippled);
XFillRectangle(display,pixm,gc,width-rs-5,legendystart+19*rs,rs,rs);
strcpy(buf,"filter off");                  
text_width=XTextWidth(info_font[1],buf,strlen(buf));
XSetFillStyle(display,gc,FillSolid);
XDrawString(display,pixm,gc,width-rs-10-text_width,legendystart+19*rs+rs/2+3,buf,strlen(buf));
 
savekscale=kscale;
 
for(i=0;i<maxkscale;i++) {
 
    get_legend(data_type,i,delim);
    if((i/2)*2==i)                  
    XSetStipple(display,gc,logo[2]);
 
    else 
    XSetStipple(display,gc,logo[0]);
 
    XSetFillStyle(display,gc,FillStippled);
    XFillRectangle(display,pixm,gc,width-rs-5,legendystart+(20+i)*rs,rs,rs);
 
    sprintf(buf,"%4.1f - %4.1f",delim[0],delim[14]);
 
    text_width=XTextWidth(info_font[1],buf,strlen(buf));
    XSetFillStyle(display,gc,FillSolid);
    XDrawString(display,pixm,gc,width-rs-10-text_width,legendystart+(20+i)*rs+rs/2+3,buf,strlen(buf));
                
  }
 
get_legend(data_type,savekscale,delim);
 
XSetStipple(display,gc,logo[0]);
XSetFillStyle(display,gc,FillStippled);
XFillRectangle(display,pixm,gc,width-rs-5,
               legendystart+(20+maxkscale)*rs,rs,rs);
strcpy(buf,"close");                  
text_width=XTextWidth(info_font[1],buf,strlen(buf));
XSetFillStyle(display,gc,FillSolid);
XDrawString(display,pixm,gc,width-rs-10-text_width,
            legendystart+(20+maxkscale)*rs+rs/2+3,buf,strlen(buf));
 
 
}