#include <libgen.h>
#include <cairo.h>
#include <cairo-ft.h>
-#include <cgic.h>
#ifndef CAIRO_HAS_PNG_FUNCTIONS
#error This program requires cairo with PNG support
#define TRUE (1==1)
#define FALSE (!TRUE)
+#if USE_CGIC
static cairo_status_t
stdio_write (void *closure, const unsigned char *data, unsigned int length);
+#endif
double
get_max_width (cairo_t *cr, char *characters);
double
get_max_height (cairo_t *cr, char *characters);
+typedef struct {
+ char *family;
+ double size;
+ struct {
+ double red;
+ double green;
+ double blue;
+ } color;
+} args_t;
+
+static void
+parse_args (args_t *args)
+{
+ /* First some defaults */
+ args->family = "Vera";
+ args->size = 20;
+ args->color.red = 0.0;
+ args->color.green = 0.0;
+ args->color.blue = 0.0;
+
+ /* XXX: Next, we should override the defaults based on
+ * command-line arguments. */
+
+ /* XXX: Finally, we'll want to allow CGI-based arguments as
+ * well. */
+#if USE_CGIG
+ /* QueryString */
+ int fontsize;
+ char format[5];
+ char fillcolor[20];
+ char fontname[20];
+ cgiFormStringNoNewlines("fontname", fontname, 20);
+ cgiFormInteger("fontsize", &fontsize, 50);
+ cgiFormStringNoNewlines("format", format, 5);
+ cgiFormStringNoNewlines("fillcolor", fillcolor, 20);
+
+ int fillcolor_red;
+ int fillcolor_green;
+ int fillcolor_blue;
+ sscanf (fillcolor, " rgb : %d , %d , %d ", &fillcolor_red, &fillcolor_green, &fillcolor_blue);
+ if ( format[0] == 'j' && format[1] == 's' && format[2] == 'o' && format[3] == 'n' )
+ outputJson = TRUE;
+#endif
+}
+
+static FT_Face
+load_ft_face_for_family (const char *family)
+{
+ /* XXX: Instead of a hard-coded filename here, we should really be
+ * taking family and using fontconfig to map that to a
+ * filename. */
+ const char font_filename[] = "./Vera.ttf";
+
+ int error;
+ FT_Face ft_face;
+ FT_Library library;
+
+ error = FT_Init_FreeType( &library );
+ if ( error ) {
+ fprintf (stderr, "Fatal error initializing freetype.\n");
+ exit (1);
+ }
+
+ error = FT_New_Face( library, font_filename,
+ 0,
+ &ft_face );
+ if ( error == FT_Err_Unknown_File_Format ) {
+ fprintf (stderr, "Unsupported font format: %s\n", font_filename);
+ exit (1);
+ } else if ( error ) {
+ fprintf (stderr, "Failed to open file: %s\n", font_filename);
+ exit (1);
+ }
+
+ return ft_face;
+}
+
int
-cgiMain ()
+main (void)
{
char outputJson = FALSE;
};
int i;
+ args_t args;
+ FT_Face ft_face;
+ FT_UInt left_index, right_index;
+ FT_Bool use_kerning;
+ FT_Vector kerning;
- /* QueryString */
- char fontname[20];
- int fontsize;
- char format[5];
- char fillcolor[20];
- cgiFormStringNoNewlines("fontname", fontname, 20);
- cgiFormInteger("fontsize", &fontsize, 50);
- cgiFormStringNoNewlines("format", format, 5);
- cgiFormStringNoNewlines("fillcolor", fillcolor, 20);
-
- int fillcolor_red;
- int fillcolor_green;
- int fillcolor_blue;
- sscanf (fillcolor, " rgb : %d , %d , %d ", &fillcolor_red, &fillcolor_green, &fillcolor_blue);
-
- if ( format[0] == 'j' && format[1] == 's' && format[2] == 'o' && format[3] == 'n' )
- outputJson = TRUE;
+ parse_args (&args);
+#if USE_CGIC
if (outputJson)
{
cgiHeaderContentType("application/json");
} else {
cgiHeaderContentType("image/png");
}
+#endif
- int error;
- FT_Library library;
- FT_Face ft_face;
- FT_Bool use_kerning;
- FT_UInt left_index, right_index;
- FT_Vector kerning;
-
- error = FT_Init_FreeType( &library );
- if ( error )
- printf("error");
-
- error = FT_New_Face( library,"/srv/rdworth.org/cgi-bin/Verdana.ttf",
- 0,
- &ft_face );
- if ( error == FT_Err_Unknown_File_Format )
- printf("File opened. Font format unsupported.");
- else if ( error )
- printf("Could not be open or read or broken.");
+ ft_face = load_ft_face_for_family (args.family);
use_kerning = FT_HAS_KERNING( ft_face );
cr_face = cairo_ft_font_face_create_for_ft_face (ft_face, 0);
cairo_set_font_face (cr, cr_face);
- cairo_set_font_size (cr, fontsize);
+ cairo_set_font_size (cr, args.size);
cairo_set_line_width (cr, 1.0);
cr_face = cairo_ft_font_face_create_for_ft_face (ft_face, 0);
cairo_set_font_face (cr, cr_face);
- cairo_set_font_size (cr, fontsize);
+ cairo_set_font_size (cr, args.size);
cairo_text_extents_t extents;
double x = 0.0;
FT_KERNING_UNSCALED, &kerning );
if ( kerning.x )
- printf(",k%d:%d", characters[j], kerning.x);
+ printf(",k%d:%ld", characters[j], kerning.x);
}
printf ("}");
cairo_move_to (cr, x, y);
cairo_set_source_rgb (cr, 0., 0., 0.); // black
- if ( 0 <= fillcolor_red && fillcolor_red <= 255.0
- && 0 <= fillcolor_green && fillcolor_green <= 255.0
- && 0 <= fillcolor_blue && fillcolor_blue <= 255.0 )
- cairo_set_source_rgb (cr, fillcolor_red / 255.0, fillcolor_green / 255.0, fillcolor_blue / 255.0);
+ cairo_set_source_rgb (cr,
+ args.color.red,
+ args.color.green,
+ args.color.blue);
cairo_text_path (cr, string);
cairo_fill (cr);
cairo_pattern_destroy (gradient);
*/
+
+#if USE_CGIC
if (outputJson)
{
printf("}");
} else {
cairo_surface_write_to_png_stream (surface, stdio_write, cgiOut);
}
+#endif
+
+ cairo_surface_write_to_png (surface, "spritext-output.png");
+ printf ("Result written to spritext-output.png\n");
cairo_destroy (cr);
return 0;
}
+#if USE_CGIC
static cairo_status_t
stdio_write (void *closure, const unsigned char *data, unsigned int length)
{
else
return CAIRO_STATUS_WRITE_ERROR;
}
+#endif
double
get_max_width(cairo_t *cr, char *characters)
projects / spritext / blobdiff