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#ifndef MUPDF_HTML_H
#define MUPDF_HTML_H
#include "mupdf/fitz.h"
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;
typedef struct fz_css_rule_s fz_css_rule;
typedef struct fz_css_match_s fz_css_match;
typedef struct fz_css_style_s fz_css_style;
typedef struct fz_css_selector_s fz_css_selector;
typedef struct fz_css_condition_s fz_css_condition;
typedef struct fz_css_property_s fz_css_property;
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_set_s
{
fz_font *fonts[16];
fz_font *fallback;
};
enum
{
CSS_KEYWORD = 256,
CSS_HASH,
CSS_STRING,
CSS_NUMBER,
CSS_LENGTH,
CSS_PERCENT,
CSS_URI,
};
struct fz_css_rule_s
{
fz_css_selector *selector;
fz_css_property *declaration;
fz_css_property *garbage; /* for freeing inline style attributes at the end */
fz_css_rule *next;
};
struct fz_css_selector_s
{
char *name;
int combine;
fz_css_condition *cond;
fz_css_selector *left;
fz_css_selector *right;
fz_css_selector *next;
};
struct fz_css_condition_s
{
int type;
char *key;
char *val;
fz_css_condition *next;
};
struct fz_css_property_s
{
char *name;
fz_css_value *value;
short spec;
short important;
fz_css_property *next;
};
struct fz_css_value_s
{
int type;
char *data;
fz_css_value *args; /* function arguments */
fz_css_value *next;
};
struct fz_css_match_s
{
fz_css_match *up;
int count;
struct {
const char *name; /* not owned */
fz_css_value *value; /* not owned */
int spec;
} prop[64];
};
enum { DIS_NONE, DIS_BLOCK, DIS_INLINE, DIS_LIST_ITEM, DIS_INLINE_BLOCK };
enum { POS_STATIC, POS_RELATIVE, POS_ABSOLUTE, POS_FIXED };
enum { TA_LEFT, TA_RIGHT, TA_CENTER, TA_JUSTIFY };
enum { VA_BASELINE, VA_SUB, VA_SUPER, VA_TOP, VA_BOTTOM };
enum { BS_NONE, BS_SOLID };
enum {
WS_COLLAPSE = 1,
WS_ALLOW_BREAK_SPACE = 2,
WS_FORCE_BREAK_NEWLINE = 4,
WS_NORMAL = WS_COLLAPSE | WS_ALLOW_BREAK_SPACE,
WS_PRE = WS_FORCE_BREAK_NEWLINE,
WS_NOWRAP = WS_COLLAPSE,
WS_PRE_WRAP = WS_ALLOW_BREAK_SPACE | WS_FORCE_BREAK_NEWLINE,
WS_PRE_LINE = WS_COLLAPSE | WS_ALLOW_BREAK_SPACE | WS_FORCE_BREAK_NEWLINE
};
enum {
LST_NONE,
LST_DISC, LST_CIRCLE, LST_SQUARE,
LST_DECIMAL, LST_DECIMAL_ZERO,
LST_LC_ROMAN, LST_UC_ROMAN,
LST_LC_GREEK, LST_UC_GREEK,
LST_LC_LATIN, LST_UC_LATIN,
LST_LC_ALPHA, LST_UC_ALPHA,
LST_ARMENIAN, LST_GEORGIAN,
};
enum { N_NUMBER='p', N_SCALE='m', N_PERCENT='%', N_AUTO='a' };
struct fz_css_number_s
{
float value;
int unit;
};
struct fz_css_color_s
{
unsigned char r, g, b, a;
};
struct fz_css_style_s
{
fz_css_number font_size;
fz_css_number width, height;
fz_css_number margin[4];
fz_css_number padding[4];
fz_css_number border_width[4];
fz_css_number text_indent;
char white_space;
char text_align;
char vertical_align;
char list_style_type;
char border_style[4];
fz_css_number line_height;
fz_css_color background_color;
fz_css_color border_color[4];
fz_css_color color;
fz_font *font, *fallback;
};
enum
{
BOX_BLOCK, /* block-level: contains block, break, and flow boxes */
BOX_BREAK, /* block-level: empty <br> tag boxes */
BOX_FLOW, /* block-level: contains only inline boxes */
BOX_INLINE, /* inline-level: contains only inline boxes */
};
struct fz_html_s
{
int type;
float x, y, w, h; /* content */
float padding[4];
float margin[4];
float border[4];
float em;
fz_html *up, *down, *last, *next;
fz_html_flow *flow_head, **flow_tail;
fz_css_style style;
int list_item;
int is_first_flow; /* for text-indent */
};
enum
{
FLOW_WORD,
FLOW_GLUE,
FLOW_BREAK,
FLOW_IMAGE,
};
struct fz_html_flow_s
{
int type;
float x, y, w, h, em;
fz_css_style *style;
char *text;
int expand;
fz_image *image;
fz_html_flow *next;
};
fz_css_rule *fz_parse_css(fz_context *ctx, fz_css_rule *chain, const char *source, const char *file);
fz_css_property *fz_parse_css_properties(fz_context *ctx, const char *source);
void fz_drop_css(fz_context *ctx, fz_css_rule *rule);
void fz_match_css(fz_context *ctx, fz_css_match *match, fz_css_rule *rule, fz_xml *node);
void fz_match_css_at_page(fz_context *ctx, fz_css_match *match, fz_css_rule *css);
int fz_get_css_match_display(fz_css_match *node);
void fz_default_css_style(fz_context *ctx, fz_css_style *style);
void fz_apply_css_style(fz_context *ctx, fz_html_font_set *set, fz_css_style *style, fz_css_match *match);
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_drop_html_font_set(fz_context *ctx, fz_html_font_set *htx);
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);
void fz_drop_html(fz_context *ctx, fz_html *box);
#endif
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