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Fixes to freetype extension for use in Python

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This commit is contained in:
K. Lange 2018-09-25 15:34:35 +09:00
parent aaa8b4f81e
commit 1af8a04b14
1 changed files with 42 additions and 4 deletions
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46
ext/ext_freetype_fonts.c
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@ -34,6 +34,7 @@ static FT_Library library;
static FT_Face faces[FONTS_TOTAL]; /* perhaps make this an array ? */
static FT_GlyphSlot slot;
static int selected_face = 0;
static int _font_size = 12;
static int fallbacks[] = {FONT_JAPANESE, FONT_SYMBOLA, -1};
#define SGFX(CTX,x,y,WIDTH) *((uint32_t *)&CTX[((WIDTH) * (y) + (x)) * 4])
@ -85,11 +86,8 @@ void freetype_set_font_face(int font) {
selected_face = font;
}
static int _old_size = -1;
void freetype_set_font_size(int size) {
if (size == _old_size) return;
_old_size = size;
_font_size = size;
for (int i = 0; i < FONTS_TOTAL; ++i) {
FT_Set_Pixel_Sizes(faces[i], size, size);
}
@ -289,3 +287,43 @@ __attribute__((constructor)) static void init_lib(void) {
_load_fonts();
selected_face = FONT_SANS_SERIF;
}
char * freetype_font_name(int i) {
return ((FT_FaceRec *)faces[i])->family_name;
}
FT_Face freetype_get_active_font_face(void) {
return faces[selected_face];
}
void freetype_draw_string_shadow(gfx_context_t * ctx, int x, int y, uint32_t fg, char * string, uint32_t shadow_color, int darkness, int offset_x, int offset_y, double radius) {
#define OFFSET_X 5
#define OFFSET_Y 5
#define WIDTH_PAD 15
#define HEIGHT_PAD 15
gfx_context_t * out_c;
sprite_t * out_s;
size_t width = freetype_draw_string_width(string) + WIDTH_PAD;
size_t height = _font_size + HEIGHT_PAD;
out_s = create_sprite(width, height, ALPHA_EMBEDDED);
out_c = init_graphics_sprite(out_s);
draw_fill(out_c, rgba(0,0,0,0));
freetype_draw_string(out_c, OFFSET_X + offset_x, OFFSET_Y + offset_y + _font_size, shadow_color, string);
/* Two should work okay? */
blur_context_box(out_c, radius);
blur_context_box(out_c, radius);
freetype_draw_string(out_c, OFFSET_X, OFFSET_Y + _font_size, fg, string);
for (int i = 0; i < darkness; ++i) {
draw_sprite(ctx, out_s, x - OFFSET_X, y - OFFSET_Y - _font_size);
}
sprite_free(out_s);
free(out_c);
}