#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
-
static double
-get_max_width (cairo_t *cr, const char *characters)
+get_max_width (cairo_t *cr, const char *characters, int num_characters)
{
int i;
double max_width = 0.;
char string[2];
string[1] = '\0';
- for (i = 0; i < ARRAY_SIZE(characters); i++) {
+ for (i = 0; i < num_characters; i++) {
cairo_text_extents_t extents;
string[0] = characters[i];
cairo_text_extents (cr, string, &extents);
}
static double
-get_max_height (cairo_t *cr, const char *characters)
+get_max_height (cairo_t *cr, const char *characters, int num_characters)
{
int i;
double max_height = 0.;
char string[2];
string[1] = '\0';
- for (i = 0; i < ARRAY_SIZE(characters); i++) {
+ for (i = 0; i < num_characters; i++) {
cairo_text_extents_t extents;
string[0] = characters[i];
cairo_text_extents (cr, string, &extents);
-// if ((extents.height - extents.y_bearing) > max_height)
-// max_height = extents.height - extents.y_bearing;
if ((extents.height) > max_height)
max_height = extents.height;
}
{
/* First some defaults */
args->family = "Vera";
- args->size = 20;
+ args->size = 40;
args->color.red = 0.0;
- args->color.green = 0.0;
+ args->color.green = 0.3;
args->color.blue = 0.0;
/* XXX: Next, we should override the defaults based on
static void
get_characters_max_width_height (FT_Face ft_face, double size,
- const char *characters,
+ const char *characters, int num_characters,
double *max_width, double *max_height)
{
cairo_surface_t *surface;
cr = cairo_create (surface);
-/*
- cairo_select_font_face (cr, fontname,
- CAIRO_FONT_SLANT_NORMAL,
- CAIRO_FONT_WEIGHT_NORMAL);
-*/
cr_face = cairo_ft_font_face_create_for_ft_face (ft_face, 0);
cairo_set_font_face (cr, cr_face);
cairo_set_line_width (cr, 1.0);
- *max_width = get_max_width(cr, characters);
- *max_height = get_max_height(cr, characters);
+ *max_width = get_max_width(cr, characters, num_characters);
+ *max_height = get_max_height(cr, characters, num_characters);
cairo_font_face_destroy (cr_face);
cairo_surface_destroy(surface);
}
+static void
+draw_character_table (cairo_t *cr,
+ FT_Face ft_face, double size,
+ const char *characters, int num_characters,
+ double character_width, double character_height)
+{
+ cairo_font_face_t *cr_face;
+ int i;
+
+ 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, size);
+
+ cairo_text_extents_t extents;
+ double x = 0.0;
+ double y = 0.0;
+
+ char string[2];
+ string[1] = '\0';
+
+ cairo_set_line_width (cr, 2.0);
+ for (i = 0; i < num_characters; i++)
+ {
+ cairo_rectangle (cr, x, y, character_width, character_height);
+ cairo_stroke_preserve (cr);
+ cairo_save (cr);
+ cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */
+ cairo_fill (cr);
+ cairo_restore (cr);
+
+ string[0] = characters[i];
+
+ cairo_text_extents (cr, string, &extents);
+
+ cairo_move_to (cr, x - extents.x_bearing, y - extents.y_bearing);
+ cairo_show_text (cr, string);
+
+ if ((i+1) % 10 == 0)
+ {
+ x = 0.;
+ y += character_height;
+ } else {
+ x += character_width;
+ }
+ }
+
+ cairo_scale (cr, 1, -1);
+ cairo_push_group (cr);
+}
+
int
main (void)
{
- char outputJson = FALSE;
-
char characters[] = {
'!', '"', '#', '$', '%', '&','\'', '(',
')', '*', '+', ',', '-', '.', '/', '0',
'y', 'z', '{', '|', '}', '~'
};
- int i;
args_t args;
FT_Face ft_face;
- FT_UInt left_index, right_index;
- FT_Bool use_kerning;
- FT_Vector kerning;
double max_width, max_height;
cairo_surface_t *surface;
cairo_t *cr;
- cairo_font_face_t *cr_face;
parse_args (&args);
-#if USE_CGIC
- if (outputJson)
- {
- cgiHeaderContentType("application/json");
- } else {
- cgiHeaderContentType("image/png");
- }
-#endif
-
ft_face = load_ft_face_for_family (args.family);
- use_kerning = FT_HAS_KERNING( ft_face );
-
get_characters_max_width_height (ft_face, args.size,
- characters,
+ characters, ARRAY_SIZE (characters),
&max_width, &max_height);
/* Draw */
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
- (max_width + 8) * 10,
- (max_height + 8) * 10);
+ max_width * 10,
+ max_height * 10);
cr = cairo_create (surface);
-/*
- cairo_select_font_face (cr, fontname,
- CAIRO_FONT_SLANT_NORMAL,
- CAIRO_FONT_WEIGHT_NORMAL);
-*/
- 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, args.size);
-
- cairo_text_extents_t extents;
- double x = 0.0;
- double y = 0.0;
-
- if (outputJson)
- printf("{");
-
- cairo_translate (cr, 0, -(max_height / 2.50));
-
-// cairo_translate (cr, 0, -5.0);
-
- char string[2];
- string[1] = '\0';
- for (i = 0; i < ARRAY_SIZE(characters); i++)
- {
- if (i % 10 == 0)
- {
- x = 0.;
- y += max_height + 8;
- }
- string[0] = characters[i];
-
- cairo_text_extents (cr, string, &extents);
-
- if (outputJson)
- {
- if (i > 0)
- printf (",\n");
- printf ("u%i:{", characters[i]);
- printf ("x:%.1f,y:%.1f,w:%.1f,h:%.1f",
- x,
- y - (max_height * 1.15),
- extents.width + extents.x_bearing,
- extents.height);
- int j;
- for ( j = 0; j < ARRAY_SIZE(characters); j++ )
- {
- right_index = FT_Get_Char_Index( ft_face, characters[i] );
- left_index = FT_Get_Char_Index( ft_face, characters[j] );
-
- FT_Get_Kerning( ft_face, left_index, right_index,
- FT_KERNING_UNSCALED, &kerning );
-
- if ( kerning.x )
- printf(",k%d:%ld", characters[j], kerning.x);
- }
-
- printf ("}");
- }
-
- x -= extents.x_bearing;
-
- cairo_move_to (cr, x, y);
- cairo_set_source_rgb (cr, 0., 0., 0.); // black
- cairo_set_source_rgb (cr,
- args.color.red,
- args.color.green,
- args.color.blue);
- cairo_text_path (cr, string);
- cairo_fill (cr);
-
- x += extents.x_bearing;
- x += max_width + 8;
- }
-
-/*
- int thick_width = 4;
- int thin_width = 0;
-
- for (c = 'A'; c <= 'I'; c++)
- {
- string[0] = c;
- int spacing = ((c - 'A') * letterspacing) + 1;
-
-
- cairo_save(cr);
+ cairo_set_source_rgb (cr,
+ args.color.red,
+ args.color.green,
+ args.color.blue);
- cairo_move_to (cr, spacing, 0);
- cairo_text_path (cr, string);
-// cairo_set_source_rgb (cr, 0.1, 0.2, 0.2); // gray
-cairo_set_source_rgb (cr, 0.8, 0.8, 0.85); // silver
-cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
-
-cairo_push_group (cr);
-cairo_set_line_width (cr, thick_width);
-cairo_stroke_preserve (cr);
-cairo_set_line_width (cr, thin_width);
-cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
-cairo_stroke_preserve (cr);
-cairo_fill (cr);
-cairo_pop_group_to_source (cr);
-
-cairo_paint (cr);
-
-cairo_restore(cr);
-
-cairo_move_to (cr, spacing, 0);
-cairo_text_path (cr, string);
-cairo_set_source_rgb (cr, 0.4, 0.45, 0.7); // blue
-
-cairo_fill (cr);
-}
-*/
-
- cairo_scale (cr, 1, -1);
- cairo_push_group (cr);
-/*
-
-cairo_pattern_t *gradient;
-
-for (i = 0; i < 9; i++)
-{
-char c[2];
-strncpy(c, STRING + i, 1);
-c[1] = '\0';
-int spacing = (i * letterspacing) + 1;
-cairo_move_to (cr, spacing, -3);
-cairo_show_text (cr, c);
-
-}
-cairo_pop_group_to_source (cr);
-
-gradient = cairo_pattern_create_linear (0, 0, 0, -fontsize);
-cairo_pattern_add_color_stop_rgba (gradient, 0.0, 1, 1, 1, 0.5);
-cairo_pattern_add_color_stop_rgba (gradient, 0.7, 1, 1, 1, 0.0);
-
-cairo_mask (cr, gradient);
-
-cairo_pattern_destroy (gradient);
-*/
-
-#if USE_CGIC
- if (outputJson)
- {
- printf("}");
- } else {
- cairo_surface_write_to_png_stream (surface, stdio_write, cgiOut);
- }
-#endif
+ draw_character_table (cr, ft_face, args.size,
+ characters, ARRAY_SIZE (characters),
+ max_width, max_height);
cairo_surface_write_to_png (surface, "spritext-output.png");
printf ("Result written to spritext-output.png\n");
return 0;
}
-
-#if USE_CGIC
-static cairo_status_t
-stdio_write (void *closure, const unsigned char *data, unsigned int length)
-{
- FILE *file = closure;
- if (fwrite (data, 1, length, file) == length)
- return CAIRO_STATUS_SUCCESS;
- else
- return CAIRO_STATUS_WRITE_ERROR;
-}
-#endif
projects / spritext / blobdiff