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#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <math.h>
#include "gd.h"
#define DEGTORAD(x) ( (x) * (2.0 * 3.14159265) / 360.0 )
void
doerr (FILE * err, const char *msg)
{
if (err)
{
fprintf (err, "%s\n", msg);
fflush (err);
}
}
void
dowheel (gdImagePtr im, int color, char *fontfile,
int fontsize, double angle, int x, int y, char *string)
{
int brect[8];
FILE *err;
double curang;
char *cp;
err = fopen ("err.out", "a");
doerr (err, "------------- New fontwheel --------------");
doerr (err, fontfile);
doerr (err, string);
doerr (err, "------------------------------------------");
for (curang = 0.0; curang < 360.0; curang += angle)
{
/* The case of newlines is taken care of in the gdImageStringTTF call */
#if defined(OLDER_GD)
cp =
gdImageStringTTF (im, brect, color, fontfile, fontsize,
DEGTORAD (curang), x, y, string);
#else
cp =
gdImageStringFT (im, brect, color, fontfile, fontsize,
DEGTORAD (curang), x, y, string);
#endif
if (cp)
doerr (err, cp);
}
fclose (err);
}
void
dolines (gdImagePtr im, int color, double incr, int x, int y, int offset,
int length)
{
double curang;
double angle;
double x0, x1, y0, y1;
for (curang = 0.0; curang < 360.0; curang += incr)
{
angle = curang * (2.0 * 3.14159265) / 360.0;
x0 = cos (angle) * offset + x;
x1 = cos (angle) * (offset + length) + x;
y0 = sin (angle) * offset + y;
y1 = sin (angle) * (offset + length) + y;
gdImageLine (im, x0, y0, x1, y1, color);
}
}
void
dotest (char *font, int size, double incr,
int w, int h, char *string, const char *filename)
{
gdImagePtr im;
FILE *out;
int bg;
int fc;
int lc;
int xc = w / 2;
int yc = h / 2;
im = gdImageCreate (w, h);
bg = gdImageColorAllocate (im, 0, 0, 0);
gdImageFilledRectangle (im, 1, 1, w - 1, h - 1, bg);
fc = gdImageColorAllocate (im, 255, 192, 192);
lc = gdImageColorAllocate (im, 192, 255, 255);
out = fopen (filename, "wb");
dowheel (im, fc, font, size, incr, xc, yc, string);
dolines (im, lc, incr, xc, yc, 20, 120);
#if defined(HAVE_LIBPNG)
gdImagePng (im, out);
#elif defined(HAVE_LIBJPEG)
gdImageJpeg (im, out, -1);
#endif
fclose (out);
}
int
main (int argc, char **argv)
{
#if defined(HAVE_LIBPNG)
dotest ("times", 16, 20.0, 400, 400, ".....Hello, there!",
"fontwheeltest1.png");
dotest ("times", 16, 30.0, 400, 400, ".....Hello, there!",
"fontwheeltest2.png");
dotest ("arial", 16, 45.0, 400, 400, ".....Hello, there!",
"fontwheeltest3.png");
dotest ("arial", 16, 90.0, 400, 400, ".....Hello, there!",
"fontwheeltest4.png");
#elif defined(HAVE_LIBJPEG)
dotest ("times", 16, 20.0, 400, 400, ".....Hello, there!",
"fontwheeltest1.jpeg");
dotest ("times", 16, 30.0, 400, 400, ".....Hello, there!",
"fontwheeltest2.jpeg");
dotest ("arial", 16, 45.0, 400, 400, ".....Hello, there!",
"fontwheeltest3.jpeg");
dotest ("arial", 16, 90.0, 400, 400, ".....Hello, there!",
"fontwheeltest4.jpeg");
#else
fprintf (stderr, "no PNG or JPEG support\n");
#endif
return 0;
}
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