static fz_css_value *
value_from_property(fz_css_match *match, const char *name)
{
fz_css_value *value;
value = value_from_raw_property(match, name);
if (match->up)
{
if (value && !strcmp(value->data, "inherit"))
return value_from_property(match->up, name);
if (!value && keyword_in_list(name, inherit_list, nelem(inherit_list)))
return value_from_property(match->up, name);
}
return value;
}
static fz_css_value *
value_from_property(fz_css_match *match, const char *name)
{
fz_css_value *value;
value = value_from_raw_property(match, name);
if (match->up)
{
if (value && !strcmp(value->data, "inherit"))
if (strcmp(name, "font-size") != 0) /* never inherit 'font-size' textually */
return value_from_property(match->up, name);
if (!value && keyword_in_list(name, inherit_list, nelem(inherit_list)))
return value_from_property(match->up, name);
}
return value;
}
static const char *
string_from_property(fz_css_match *match, const char *name, const char *initial)
{
fz_css_value *value;
value = value_from_property(match, name);
if (!value)
return initial;
return value->data;
}
static int
border_style_from_property(fz_css_match *match, const char *property)
{
fz_css_value *value = value_from_property(match, property);
if (value)
{
if (!strcmp(value->data, "none")) return BS_NONE;
else if (!strcmp(value->data, "hidden")) return BS_NONE;
else if (!strcmp(value->data, "solid")) return BS_SOLID;
}
return BS_NONE;
}
static int
visibility_from_property(fz_css_match *match)
{
fz_css_value *value = value_from_property(match, "visibility");
if (value)
{
if (!strcmp(value->data, "visible")) return V_VISIBLE;
else if (!strcmp(value->data, "hidden")) return V_HIDDEN;
else if (!strcmp(value->data, "collapse")) return V_COLLAPSE;
}
return V_VISIBLE;
}
static int
page_break_from_property(fz_css_match *match, char *prop)
{
fz_css_value *value = value_from_property(match, prop);
if (value)
{
if (!strcmp(value->data, "auto")) return PB_AUTO;
else if (!strcmp(value->data, "always")) return PB_ALWAYS;
else if (!strcmp(value->data, "avoid")) return PB_AVOID;
else if (!strcmp(value->data, "left")) return PB_LEFT;
else if (!strcmp(value->data, "right")) return PB_RIGHT;
}
return PB_AUTO;
}
static int
white_space_from_property(fz_css_match *match)
{
fz_css_value *value = value_from_property(match, "white-space");
if (value)
{
if (!strcmp(value->data, "normal")) return WS_NORMAL;
else if (!strcmp(value->data, "pre")) return WS_PRE;
else if (!strcmp(value->data, "nowrap")) return WS_NOWRAP;
else if (!strcmp(value->data, "pre-wrap")) return WS_PRE_WRAP;
else if (!strcmp(value->data, "pre-line")) return WS_PRE_LINE;
}
return WS_NORMAL;
}
static fz_css_number
border_width_from_property(fz_css_match *match, const char *property)
{
fz_css_value *value = value_from_property(match, property);
if (value)
{
if (!strcmp(value->data, "thin"))
return make_number(1, N_LENGTH);
if (!strcmp(value->data, "medium"))
return make_number(2, N_LENGTH);
if (!strcmp(value->data, "thick"))
return make_number(4, N_LENGTH);
return number_from_value(value, 0, N_LENGTH);
}
return make_number(2, N_LENGTH); /* initial: 'medium' */
}
int
fz_get_css_match_display(fz_css_match *match)
{
fz_css_value *value = value_from_property(match, "display");
if (value)
{
if (!strcmp(value->data, "none"))
return DIS_NONE;
if (!strcmp(value->data, "inline"))
return DIS_INLINE;
if (!strcmp(value->data, "block"))
return DIS_BLOCK;
if (!strcmp(value->data, "list-item"))
return DIS_LIST_ITEM;
}
return DIS_INLINE;
}
static fz_css_number
number_from_property(fz_css_match *match, const char *property, float initial, int initial_unit)
{
return number_from_value(value_from_property(match, property), initial, initial_unit);
}
void
fz_apply_css_style(fz_context *ctx, fz_html_font_set *set, fz_css_style *style, fz_css_match *match)
{
fz_css_value *value;
fz_css_color black = { 0, 0, 0, 255 };
fz_css_color transparent = { 0, 0, 0, 0 };
fz_default_css_style(ctx, style);
style->visibility = visibility_from_property(match);
style->white_space = white_space_from_property(match);
style->page_break_before = page_break_from_property(match, "page-break-before");
style->page_break_after = page_break_from_property(match, "page-break-after");
value = value_from_property(match, "text-align");
if (value)
{
if (!strcmp(value->data, "left")) style->text_align = TA_LEFT;
else if (!strcmp(value->data, "right")) style->text_align = TA_RIGHT;
else if (!strcmp(value->data, "center")) style->text_align = TA_CENTER;
else if (!strcmp(value->data, "justify")) style->text_align = TA_JUSTIFY;
}
value = value_from_property(match, "vertical-align");
if (value)
{
if (!strcmp(value->data, "baseline")) style->vertical_align = VA_BASELINE;
else if (!strcmp(value->data, "sub")) style->vertical_align = VA_SUB;
else if (!strcmp(value->data, "super")) style->vertical_align = VA_SUPER;
else if (!strcmp(value->data, "top")) style->vertical_align = VA_TOP;
else if (!strcmp(value->data, "bottom")) style->vertical_align = VA_BOTTOM;
else if (!strcmp(value->data, "text-top")) style->vertical_align = VA_TEXT_TOP;
else if (!strcmp(value->data, "text-bottom")) style->vertical_align = VA_TEXT_BOTTOM;
}
value = value_from_property(match, "font-size");
if (value)
{
if (!strcmp(value->data, "xx-large")) style->font_size = make_number(1.73f, N_SCALE);
else if (!strcmp(value->data, "x-large")) style->font_size = make_number(1.44f, N_SCALE);
else if (!strcmp(value->data, "large")) style->font_size = make_number(1.2f, N_SCALE);
else if (!strcmp(value->data, "medium")) style->font_size = make_number(1.0f, N_SCALE);
else if (!strcmp(value->data, "small")) style->font_size = make_number(0.83f, N_SCALE);
else if (!strcmp(value->data, "x-small")) style->font_size = make_number(0.69f, N_SCALE);
else if (!strcmp(value->data, "xx-small")) style->font_size = make_number(0.69f, N_SCALE);
else if (!strcmp(value->data, "larger")) style->font_size = make_number(1.2f, N_SCALE);
else if (!strcmp(value->data, "smaller")) style->font_size = make_number(1/1.2f, N_SCALE);
else style->font_size = number_from_value(value, 12, N_LENGTH);
}
else
{
style->font_size = make_number(1, N_SCALE);
}
value = value_from_property(match, "list-style-type");
if (value)
{
if (!strcmp(value->data, "none")) style->list_style_type = LST_NONE;
else if (!strcmp(value->data, "disc")) style->list_style_type = LST_DISC;
else if (!strcmp(value->data, "circle")) style->list_style_type = LST_CIRCLE;
else if (!strcmp(value->data, "square")) style->list_style_type = LST_SQUARE;
else if (!strcmp(value->data, "decimal")) style->list_style_type = LST_DECIMAL;
else if (!strcmp(value->data, "decimal-leading-zero")) style->list_style_type = LST_DECIMAL_ZERO;
else if (!strcmp(value->data, "lower-roman")) style->list_style_type = LST_LC_ROMAN;
else if (!strcmp(value->data, "upper-roman")) style->list_style_type = LST_UC_ROMAN;
else if (!strcmp(value->data, "lower-greek")) style->list_style_type = LST_LC_GREEK;
else if (!strcmp(value->data, "upper-greek")) style->list_style_type = LST_UC_GREEK;
else if (!strcmp(value->data, "lower-latin")) style->list_style_type = LST_LC_LATIN;
else if (!strcmp(value->data, "upper-latin")) style->list_style_type = LST_UC_LATIN;
else if (!strcmp(value->data, "lower-alpha")) style->list_style_type = LST_LC_ALPHA;
else if (!strcmp(value->data, "upper-alpha")) style->list_style_type = LST_UC_ALPHA;
else if (!strcmp(value->data, "armenian")) style->list_style_type = LST_ARMENIAN;
else if (!strcmp(value->data, "georgian")) style->list_style_type = LST_GEORGIAN;
}
style->line_height = number_from_property(match, "line-height", 1.2f, N_SCALE);
style->text_indent = number_from_property(match, "text-indent", 0, N_LENGTH);
style->width = number_from_property(match, "width", 0, N_AUTO);
style->height = number_from_property(match, "height", 0, N_AUTO);
style->margin[0] = number_from_property(match, "margin-top", 0, N_LENGTH);
style->margin[1] = number_from_property(match, "margin-right", 0, N_LENGTH);
style->margin[2] = number_from_property(match, "margin-bottom", 0, N_LENGTH);
style->margin[3] = number_from_property(match, "margin-left", 0, N_LENGTH);
style->padding[0] = number_from_property(match, "padding-top", 0, N_LENGTH);
style->padding[1] = number_from_property(match, "padding-right", 0, N_LENGTH);
style->padding[2] = number_from_property(match, "padding-bottom", 0, N_LENGTH);
style->padding[3] = number_from_property(match, "padding-left", 0, N_LENGTH);
style->color = color_from_property(match, "color", black);
style->background_color = color_from_property(match, "background-color", transparent);
style->border_style[0] = border_style_from_property(match, "border-top-style");
style->border_style[1] = border_style_from_property(match, "border-right-style");
style->border_style[2] = border_style_from_property(match, "border-bottom-style");
style->border_style[3] = border_style_from_property(match, "border-left-style");
style->border_color[0] = color_from_property(match, "border-top-color", style->color);
style->border_color[1] = color_from_property(match, "border-right-color", style->color);
style->border_color[2] = color_from_property(match, "border-bottom-color", style->color);
style->border_color[3] = color_from_property(match, "border-left-color", style->color);
style->border_width[0] = border_width_from_property(match, "border-top-width");
style->border_width[1] = border_width_from_property(match, "border-right-width");
style->border_width[2] = border_width_from_property(match, "border-bottom-width");
style->border_width[3] = border_width_from_property(match, "border-left-width");
{
const char *font_weight = string_from_property(match, "font-weight", "normal");
const char *font_style = string_from_property(match, "font-style", "normal");
int is_bold = is_bold_from_font_weight(font_weight);
int is_italic = is_italic_from_font_style(font_style);
value = value_from_property(match, "font-family");
while (value)
{
if (strcmp(value->data, ",") != 0)
{
style->font = fz_load_html_font(ctx, set, value->data, is_bold, is_italic);
if (style->font)
break;
}
value = value->next;
}
if (!style->font)
style->font = fz_load_html_font(ctx, set, "serif", is_bold, is_italic);
}
}
static fz_css_color
color_from_property(fz_css_match *match, const char *property, fz_css_color initial)
{
return color_from_value(value_from_property(match, property), initial);
}
void
fz_apply_css_style(fz_context *ctx, fz_html_font_set *set, fz_css_style *style, fz_css_match *match)
{
fz_css_value *value;
fz_css_color black = { 0, 0, 0, 255 };
fz_css_color transparent = { 0, 0, 0, 0 };
fz_default_css_style(ctx, style);
style->white_space = white_space_from_property(match);
value = value_from_property(match, "text-align");
if (value)
{
if (!strcmp(value->data, "left"))
style->text_align = TA_LEFT;
if (!strcmp(value->data, "right"))
style->text_align = TA_RIGHT;
if (!strcmp(value->data, "center"))
style->text_align = TA_CENTER;
if (!strcmp(value->data, "justify"))
style->text_align = TA_JUSTIFY;
}
value = value_from_property(match, "vertical-align");
if (value)
{
if (!strcmp(value->data, "baseline"))
style->vertical_align = VA_BASELINE;
if (!strcmp(value->data, "sub"))
style->vertical_align = VA_SUB;
if (!strcmp(value->data, "super"))
style->vertical_align = VA_SUPER;
if (!strcmp(value->data, "top"))
style->vertical_align = VA_TOP;
if (!strcmp(value->data, "bottom"))
style->vertical_align = VA_BOTTOM;
}
value = value_from_property(match, "font-size");
if (value)
{
if (!strcmp(value->data, "xx-large")) style->font_size = make_number(1.73f, N_SCALE);
else if (!strcmp(value->data, "x-large")) style->font_size = make_number(1.44f, N_SCALE);
else if (!strcmp(value->data, "large")) style->font_size = make_number(1.2f, N_SCALE);
else if (!strcmp(value->data, "medium")) style->font_size = make_number(1.0f, N_SCALE);
else if (!strcmp(value->data, "small")) style->font_size = make_number(0.83f, N_SCALE);
else if (!strcmp(value->data, "x-small")) style->font_size = make_number(0.69f, N_SCALE);
else if (!strcmp(value->data, "xx-small")) style->font_size = make_number(0.69f, N_SCALE);
else if (!strcmp(value->data, "larger")) style->font_size = make_number(1.2f, N_SCALE);
else if (!strcmp(value->data, "smaller")) style->font_size = make_number(1/1.2f, N_SCALE);
else style->font_size = number_from_value(value, 12, N_NUMBER);
}
else
{
style->font_size = make_number(1, N_SCALE);
}
value = value_from_property(match, "border-style");
if (value)
{
if (!strcmp(value->data, "none"))
style->border_style = BS_NONE;
if (!strcmp(value->data, "hidden"))
style->border_style = BS_NONE;
if (!strcmp(value->data, "solid"))
style->border_style = BS_SOLID;
}
style->line_height = number_from_property(match, "line-height", 1.2f, N_SCALE);
style->text_indent = number_from_property(match, "text-indent", 0, N_NUMBER);
style->margin[0] = number_from_property(match, "margin-top", 0, N_NUMBER);
style->margin[1] = number_from_property(match, "margin-right", 0, N_NUMBER);
style->margin[2] = number_from_property(match, "margin-bottom", 0, N_NUMBER);
style->margin[3] = number_from_property(match, "margin-left", 0, N_NUMBER);
style->padding[0] = number_from_property(match, "padding-top", 0, N_NUMBER);
style->padding[1] = number_from_property(match, "padding-right", 0, N_NUMBER);
style->padding[2] = number_from_property(match, "padding-bottom", 0, N_NUMBER);
style->padding[3] = number_from_property(match, "padding-left", 0, N_NUMBER);
style->border_width[0] = border_width_from_property(match, "border-width-top");
style->border_width[1] = border_width_from_property(match, "border-width-right");
style->border_width[2] = border_width_from_property(match, "border-width-bottom");
style->border_width[3] = border_width_from_property(match, "border-width-left");
style->color = color_from_property(match, "color", black);
style->background_color = color_from_property(match, "background-color", transparent);
style->border_color = color_from_property(match, "border-color", style->color);
{
const char *font_family = string_from_property(match, "font-family", "serif");
const char *font_variant = string_from_property(match, "font-variant", "normal");
const char *font_style = string_from_property(match, "font-style", "normal");
const char *font_weight = string_from_property(match, "font-weight", "normal");
style->font = fz_load_html_font(ctx, set, font_family, font_variant, font_style, font_weight);
}
}
