libgd/src/fontsizetest.c

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "gd.h"

void
dosizes (gdImagePtr im, int color, char *fontfile,
         int x, int y, const char *string)
{
	int brect[8];
	double curang = 0.0;
	char *cp;
	int cursize;
	char buf[60];

	for (cursize = 1; cursize <= 20; cursize++) {
		sprintf (buf, "%d: %s", cursize, string);

		/* The case of newlines is taken care of in the gdImageStringTTF call */
		cp =
		    gdImageStringFT (im, brect, color, fontfile, cursize, curang, x, y,
		                     buf);
		if (cp)
			fprintf(stderr, "%s\n", cp);
		y += cursize + 4;

		/* render the same fontsize with antialiasing turned off */
		cp =
		    gdImageStringFT (im, brect, 0 - color, fontfile, cursize, curang, x,
		                     y, buf);
		if (cp)
			fprintf(stderr, "%s\n", cp);
		y += cursize + 4;
	}
}

void
dotest (char *font, int w, int h, char *string, const char *filename)
{
	gdImagePtr im;
	FILE *out;
	int bg;
	int fc;

	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);

	out = fopen (filename, "wb");

	dosizes (im, fc, font, 20, 20, string);

#if defined(HAVE_LIBPNG)
	gdImagePng (im, out);
#elif defined(HAVE_LIBJPEG)
	gdImageJpeg (im, out, -1);
#endif
	fclose (out);
}

int
main(void)
{

#if defined(HAVE_LIBPNG)
	dotest ("times", 400, 600, ".....Hello, there!", "fontsizetest1.png");
	dotest ("cour", 400, 600, ".....Hello, there!", "fontsizetest2.png");
	dotest ("arial", 400, 600, ".....Hello, there!", "fontsizetest3.png");
	dotest ("luximr", 400, 600, ".....Hello, there!", "fontsizetest4.png");
#elif defined(HAVE_LIBJPEG)
	dotest ("times", 400, 600, ".....Hello, there!", "fontsizetest1.jpeg");
	dotest ("cour", 400, 600, ".....Hello, there!", "fontsizetest2.jpeg");
	dotest ("arial", 400, 600, ".....Hello, there!", "fontsizetest3.jpeg");
	dotest ("luximr", 400, 600, ".....Hello, there!", "fontsizetest4.jpeg");
#else
	fprintf(stderr, "no PNG or JPEG support\n");
#endif

	return 0;
}