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| author | John Mark Bell <jmb@netsurf-browser.org> | 2011-01-29 21:51:45 +0000 |
|---|---|---|
| committer | John Mark Bell <jmb@netsurf-browser.org> | 2011-01-29 21:51:45 +0000 |
| commit | 6ba000db056d7e9b70a7e154a003644046bf7e98 (patch) | |
| tree | 30c43ec8543ec9cb66169721e3268ea0a7cdb76f /include/libcss/computed.h | |
| parent | 1b13f81b8259f4416df7b3063cb280cb977722d7 (diff) | |
| download | libcss-6ba000db056d7e9b70a7e154a003644046bf7e98.tar.gz libcss-6ba000db056d7e9b70a7e154a003644046bf7e98.tar.bz2 | |
Add support for opacity property
svn path=/trunk/libcss/; revision=11527
Diffstat (limited to 'include/libcss/computed.h')
| -rw-r--r-- | include/libcss/computed.h | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/include/libcss/computed.h b/include/libcss/computed.h index 818d9db..094fd59 100644 --- a/include/libcss/computed.h +++ b/include/libcss/computed.h @@ -181,7 +181,7 @@ struct css_computed_style { * --- * 84 bits * - * Colours are 32bits of RRGGBBAA + * Colours are 32bits of AARRGGBB * Dimensions are encoded as a fixed point value + 4 bits of unit data * * background_color 2 4 @@ -269,7 +269,7 @@ struct css_computed_style { * 21 mmmmmccc min-width | clear * 22 tttttooo padding-top | overflow * 23 rrrrrppp padding-right | position - * 24 bbbbb... padding-bottom | <unused> + * 24 bbbbbo.. padding-bottom | opacity | <unused> * 25 lllllttt padding-left | text-transform * 26 tttttwww text-indent | white-space * 27 bbbbbbbb background-position @@ -315,6 +315,8 @@ struct css_computed_style { css_fixed min_height; css_fixed min_width; + css_fixed opacity; + css_fixed padding[4]; css_fixed text_indent; @@ -1771,6 +1773,28 @@ static inline uint8_t css_computed_position( #undef CSS_POSITION_SHIFT #undef CSS_POSITION_INDEX +#define CSS_OPACITY_INDEX 23 +#define CSS_OPACITY_SHIFT 2 +#define CSS_OPACITY_MASK 0x04 +static inline uint8_t css_computed_opacity( + const css_computed_style *style, + css_fixed *opacity) +{ + uint8_t bits = style->bits[CSS_OPACITY_INDEX]; + bits &= CSS_OPACITY_MASK; + bits >>= CSS_OPACITY_SHIFT; + + /* 1bit: t : type */ + if ((bits & 0x1) == CSS_OPACITY_SET) { + *opacity = style->opacity; + } + + return (bits & 0x1); +} +#undef CSS_OPACITY_MASK +#undef CSS_OPACITY_SHIFT +#undef CSS_OPACITY_INDEX + #define CSS_TEXT_TRANSFORM_INDEX 24 #define CSS_TEXT_TRANSFORM_SHIFT 0 #define CSS_TEXT_TRANSFORM_MASK 0x7 |