epub: Implement @font-face rules.

Note: font->fallback is not reference counted here. The fallback
mechanism is probably going to have to change when we add text shaping.

1 files changed, 17 insertions, 3 deletions

diff --git a/include/mupdf/html.h b/include/mupdf/html.h
index 75d46313..48231281 100644
--- a/include/mupdf/html.h
+++ b/include/mupdf/html.h
@@ -3,6 +3,7 @@
 
 #include "mupdf/fitz.h"
 
+typedef struct fz_html_font_face_s fz_html_font_face;
 typedef struct fz_html_font_set_s fz_html_font_set;
 typedef struct fz_html_s fz_html;
 typedef struct fz_html_flow_s fz_html_flow;
@@ -19,10 +20,21 @@ typedef struct fz_css_value_s fz_css_value;
 typedef struct fz_css_number_s fz_css_number;
 typedef struct fz_css_color_s fz_css_color;
 
+struct fz_html_font_face_s
+{
+	char *family;
+	int is_bold;
+	int is_italic;
+	fz_font *font;
+	char *src;
+	fz_html_font_face *next;
+};
+
 struct fz_html_font_set_s
 {
 	fz_font *fonts[16];
 	fz_font *fallback;
+	fz_html_font_face *custom;
 };
 
 enum
@@ -239,11 +251,13 @@ float fz_from_css_number(fz_css_number, float em, float width);
 float fz_from_css_number_scale(fz_css_number number, float scale, float em, float width);
 
 fz_html_font_set *fz_new_html_font_set(fz_context *ctx);
-fz_font *fz_load_html_font(fz_context *ctx, fz_html_font_set *set,
-	const char *family, const char *variant, const char *style, const char *weight);
-fz_font *fz_load_html_fallback_font(fz_context *ctx, fz_html_font_set *set);
+void fz_add_html_font_face(fz_context *ctx, fz_html_font_set *set,
+	const char *family, int is_bold, int is_italic, const char *src, fz_font *font);
+fz_font *fz_load_html_font(fz_context *ctx, fz_html_font_set *set, const char *family, int is_bold, int is_italic);
 void fz_drop_html_font_set(fz_context *ctx, fz_html_font_set *htx);
 
+void fz_add_css_font_faces(fz_context *ctx, fz_html_font_set *set, fz_archive *zip, const char *base_uri, fz_css_rule *css);
+
 fz_html *fz_parse_html(fz_context *ctx, fz_html_font_set *htx, fz_archive *zip, const char *base_uri, fz_buffer *buf, const char *user_css);
 void fz_layout_html(fz_context *ctx, fz_html *box, float w, float h, float em);
 void fz_draw_html(fz_context *ctx, fz_html *box, float page_top, float page_bot, fz_device *dev, const fz_matrix *ctm);