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#include <math.h>
#include "driverlib.h"
# define STOP -1
static int text_move(double,double);
static int text_draw(double,double);
static int remember(double,double);
static short int *CharIndex[128] ;
static int am_inside = 0 ;
static int dont_draw = 0 ;
static int t, b, l, r ;
double basex, basey ;
double curx, cury ;
int drawchar (double text_size_x,double text_size_y,
register double sinrot,register double cosrot, unsigned char character)
{
unsigned char *X ;
unsigned char *Y ;
int n_vects ;
int i ;
register int ax, ay ;
double x, y ;
int (*Do)();
int ix, iy ;
x = basex ; y = basey ;
get_char_vects(character, &n_vects, &X, &Y) ;
Do = text_move ;
for(i=1;i<n_vects;i++)
{
if (X[i] == ' ')
{
Do = text_move ;
continue ;
}
ix = 10 + X[i] - 'R' ;
iy = 10 - Y[i] + 'R' ;
ax = (int)(text_size_x * (double)ix) ;
ay = (int)(text_size_y * (double)iy) ;
if(dont_draw)
{
remember(x + (ax * cosrot - ay * sinrot),
y - (ax * sinrot + ay * cosrot)) ;
}
else
{
(*Do)(x + (ax * cosrot - ay * sinrot),
y - (ax * sinrot + ay * cosrot)) ;
Do = text_draw ;
}
}
/* This seems to do variable spacing
ix = 10 + X[i] - 'R' ;
*/
ix = 20 ;
iy = 0 ;
ax = (int)(text_size_x * (double)ix) ;
ay = (int)(text_size_y * (double)iy) ;
if (! dont_draw)
text_move(basex + (ax * cosrot - ay * sinrot),
basey - (ax * sinrot + ay * cosrot)) ;
else
remember(basex + (ax * cosrot - ay * sinrot),
basey - (ax * sinrot + ay * cosrot)) ;
return 0;
}
static int remember(double x,double y)
{
if ((int)x > r) r = (int)x ;
if ((int)x < l) l = (int)x ;
if ((int)y > b) b = (int)y ;
if ((int)y < t) t = (int)y ;
curx = x ; cury = y ;
return 0;
}
static int text_draw (double x,double y)
{
double X1, Y1 ;
double X2, Y2 ;
int mod ;
X1 = x ;
Y1 = y ;
X2 = curx ;
Y2 = cury ;
mod = window_clip(&X1, &Y1, &X2, &Y2) ;
if (am_inside)
{
Cont_abs((int)X1, (int)Y1) ;
if (mod)
am_inside = 0 ;
}
else
{
if (!mod)
{
Move_abs((int)X2, (int)Y2) ;
Cont_abs((int)X1, (int)Y1) ;
am_inside = 1 ;
}
}
curx = x ; cury = y ;
return 0;
}
static int text_move (double x,double y)
{
double X1, Y1 ;
double X2, Y2 ;
int mod ;
X1 = x ;
Y1 = y ;
X2 = curx ;
Y2 = cury ;
mod = window_clip(&X1, &Y1, &X2, &Y2) ;
if(am_inside)
Move_abs((int)X1, (int)Y1) ;
if(mod)
am_inside = 0 ;
curx = x ; cury = y ;
return 0;
}
int soft_text_ext(int x,int y,
double text_size_x,double text_size_y,double text_rotation,
char *string)
{
t = 999999 ;
b = 0 ;
l = 999999 ;
r = 0 ;
dont_draw = 1 ;
soft_text(x, y, text_size_x, text_size_y, text_rotation, string) ;
dont_draw = 0 ;
return 0;
}
int get_text_ext (int *top,int *bot,int *left,int *rite)
{
*top = t ;
*bot = b ;
*left = l ;
*rite = r ;
return 0;
}
# define RpD ((2 * 3.14159265358979323846) / 360.) /* radians/degree */
# define D2R(d) (double)(d * RpD) /* degrees->radians */
int soft_text(int x,int y,
double text_size_x,double text_size_y,double text_rotation,
char *string)
{
double sinrot = sin (D2R (text_rotation)) ;
double cosrot = cos (D2R (text_rotation)) ;
am_inside = 0 ;
curx = basex = (double)x ;
cury = basey = (double)y ;
while(*string != 00)
{
drawchar (text_size_x, text_size_y, sinrot, cosrot, *string++) ;
basex = curx ; basey = cury ;
}
return 0;
}
int onechar(int x,int y,
double text_size_x,double text_size_y,double text_rotation,
register unsigned char achar)
{
double sinrot = sin (D2R (text_rotation)) ;
double cosrot = cos (D2R (text_rotation)) ;
am_inside = 0 ;
curx = basex = (double)x ;
cury = basey = (double)y ;
drawchar (text_size_x,text_size_y,sinrot, cosrot, achar) ;
return 0;
}
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