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/* |
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* Copyright 2009 John-Mark Bell |
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* |
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* This file is part of NetSurf, http://www.netsurf-browser.org/ |
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* |
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* NetSurf is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; version 2 of the License. |
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* |
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* NetSurf is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see . |
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*/ |
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#ifndef NETSURF_CSS_UTILS_H_ |
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#define NETSURF_CSS_UTILS_H_ |
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#include "css/css.h" |
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#include "desktop/plot_style.h" |
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/* DPI of the screen, in fixed point units */ |
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extern css_fixed nscss_screen_dpi; |
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/** |
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* Convert a CSS color to a NetSurf colour primitive |
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* |
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* ARGB -> (1-A)BGR |
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* |
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* \param color The CSS color to convert |
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* \return Corresponding NetSurf colour primitive |
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*/ |
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#define nscss_color_to_ns(color) \ |
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(0xff000000 - ((color) & 0xff000000)) | \ |
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(((color) & 0xff0000) >> 16) | \ |
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((color) & 0xff00) | \ |
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(((color) & 0xff) << 16) |
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/** |
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* Determine if a CSS color primitive is transparent |
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* |
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* \param color The CSS color to consider |
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* \return True if the color is transparent, false otherwise |
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*/ |
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#define nscss_color_is_transparent(color) \ |
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(((color) >> 24) == 0) |
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css_fixed nscss_len2pt(css_fixed length, css_unit unit); |
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css_fixed nscss_len2px(css_fixed length, css_unit unit, |
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const css_computed_style *style); |
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#endif |