369db4a406
CSS supports blend modes, in which a series of layers are merged together according to the given operation or set of operations. Support for blend modes landed on Cairo, which exposes all the commons and also the exquisites blend modes available. Adding support for blend modes, then, is just a matter of using the available Cairo operations. This patch adds the background-blend-mode CSS enum property, and adapts the background rendering code to blend the backgrounds using the available blend modes when they're set. https://bugzilla.gnome.org/show_bug.cgi?id=768305
97 lines
5.1 KiB
C
97 lines
5.1 KiB
C
/*
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* Copyright © 2012 Red Hat Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Alexander Larsson <alexl@gnome.org>
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*/
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#ifndef __GTK_CSS_ENUM_VALUE_PRIVATE_H__
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#define __GTK_CSS_ENUM_VALUE_PRIVATE_H__
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#include "gtkenums.h"
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#include "gtkcssparserprivate.h"
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#include "gtkcsstypesprivate.h"
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#include "gtkcssvalueprivate.h"
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G_BEGIN_DECLS
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GtkCssValue * _gtk_css_blend_mode_value_new (GtkCssBlendMode blend_mode);
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GtkCssValue * _gtk_css_blend_mode_value_try_parse (GtkCssParser *parser);
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GtkCssBlendMode _gtk_css_blend_mode_value_get (const GtkCssValue *value);
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GtkCssValue * _gtk_css_border_style_value_new (GtkBorderStyle border_style);
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GtkCssValue * _gtk_css_border_style_value_try_parse (GtkCssParser *parser);
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GtkBorderStyle _gtk_css_border_style_value_get (const GtkCssValue *value);
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GtkCssValue * _gtk_css_font_size_value_new (GtkCssFontSize size);
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GtkCssValue * _gtk_css_font_size_value_try_parse (GtkCssParser *parser);
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GtkCssFontSize _gtk_css_font_size_value_get (const GtkCssValue *value);
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double gtk_css_font_size_get_default_px (GtkStyleProviderPrivate *provider,
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GtkCssStyle *style);
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GtkCssValue * _gtk_css_font_style_value_new (PangoStyle style);
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GtkCssValue * _gtk_css_font_style_value_try_parse (GtkCssParser *parser);
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PangoStyle _gtk_css_font_style_value_get (const GtkCssValue *value);
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GtkCssValue * _gtk_css_font_variant_value_new (PangoVariant variant);
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GtkCssValue * _gtk_css_font_variant_value_try_parse (GtkCssParser *parser);
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PangoVariant _gtk_css_font_variant_value_get (const GtkCssValue *value);
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GtkCssValue * _gtk_css_font_weight_value_new (PangoWeight weight);
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GtkCssValue * _gtk_css_font_weight_value_try_parse (GtkCssParser *parser);
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PangoWeight _gtk_css_font_weight_value_get (const GtkCssValue *value);
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GtkCssValue * _gtk_css_font_stretch_value_new (PangoStretch stretch);
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GtkCssValue * _gtk_css_font_stretch_value_try_parse (GtkCssParser *parser);
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PangoStretch _gtk_css_font_stretch_value_get (const GtkCssValue *value);
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GtkCssValue * _gtk_css_text_decoration_line_value_new (GtkTextDecorationLine line);
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GtkCssValue * _gtk_css_text_decoration_line_value_try_parse (GtkCssParser *parser);
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GtkTextDecorationLine _gtk_css_text_decoration_line_value_get (const GtkCssValue *value);
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GtkCssValue * _gtk_css_text_decoration_style_value_new (GtkTextDecorationStyle style);
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GtkCssValue * _gtk_css_text_decoration_style_value_try_parse (GtkCssParser *parser);
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GtkTextDecorationStyle _gtk_css_text_decoration_style_value_get (const GtkCssValue *value);
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GtkCssValue * _gtk_css_area_value_new (GtkCssArea area);
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GtkCssValue * _gtk_css_area_value_try_parse (GtkCssParser *parser);
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GtkCssArea _gtk_css_area_value_get (const GtkCssValue *value);
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GtkCssValue * _gtk_css_direction_value_new (GtkCssDirection direction);
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GtkCssValue * _gtk_css_direction_value_try_parse (GtkCssParser *parser);
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GtkCssDirection _gtk_css_direction_value_get (const GtkCssValue *value);
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GtkCssValue * _gtk_css_play_state_value_new (GtkCssPlayState play_state);
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GtkCssValue * _gtk_css_play_state_value_try_parse (GtkCssParser *parser);
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GtkCssPlayState _gtk_css_play_state_value_get (const GtkCssValue *value);
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GtkCssValue * _gtk_css_fill_mode_value_new (GtkCssFillMode fill_mode);
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GtkCssValue * _gtk_css_fill_mode_value_try_parse (GtkCssParser *parser);
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GtkCssFillMode _gtk_css_fill_mode_value_get (const GtkCssValue *value);
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GtkCssValue * _gtk_css_icon_effect_value_new (GtkCssIconEffect image_effect);
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GtkCssValue * _gtk_css_icon_effect_value_try_parse (GtkCssParser *parser);
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GtkCssIconEffect _gtk_css_icon_effect_value_get (const GtkCssValue *value);
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void gtk_css_icon_effect_apply (GtkCssIconEffect icon_effect,
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cairo_surface_t *surface);
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GtkCssValue * _gtk_css_icon_style_value_new (GtkCssIconStyle icon_style);
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GtkCssValue * _gtk_css_icon_style_value_try_parse (GtkCssParser *parser);
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GtkCssIconStyle _gtk_css_icon_style_value_get (const GtkCssValue *value);
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G_END_DECLS
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#endif /* __GTK_CSS_ENUM_VALUE_PRIVATE_H__ */
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