239 lines
9.4 KiB
C
239 lines
9.4 KiB
C
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* font constants shared by both thebes and layout */
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#ifndef GFX_FONT_CONSTANTS_H
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#define GFX_FONT_CONSTANTS_H
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/*
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* This file is separate from gfxFont.h so that layout can include it
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* without bringing in gfxFont.h and everything it includes.
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*/
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#define NS_FONT_STYLE_NORMAL 0
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#define NS_FONT_STYLE_ITALIC 1
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#define NS_FONT_STYLE_OBLIQUE 2
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#define NS_FONT_WEIGHT_NORMAL 400
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#define NS_FONT_WEIGHT_BOLD 700
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#define NS_FONT_WEIGHT_THIN 100
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#define NS_FONT_STRETCH_ULTRA_CONDENSED (-4)
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#define NS_FONT_STRETCH_EXTRA_CONDENSED (-3)
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#define NS_FONT_STRETCH_CONDENSED (-2)
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#define NS_FONT_STRETCH_SEMI_CONDENSED (-1)
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#define NS_FONT_STRETCH_NORMAL 0
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#define NS_FONT_STRETCH_SEMI_EXPANDED 1
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#define NS_FONT_STRETCH_EXPANDED 2
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#define NS_FONT_STRETCH_EXTRA_EXPANDED 3
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#define NS_FONT_STRETCH_ULTRA_EXPANDED 4
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#define NS_FONT_SMOOTHING_AUTO 0
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#define NS_FONT_SMOOTHING_GRAYSCALE 1
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#define NS_FONT_KERNING_AUTO 0
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#define NS_FONT_KERNING_NONE 1
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#define NS_FONT_KERNING_NORMAL 2
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#define NS_FONT_SYNTHESIS_WEIGHT 0x1
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#define NS_FONT_SYNTHESIS_STYLE 0x2
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#define NS_FONT_DISPLAY_AUTO 0
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#define NS_FONT_DISPLAY_BLOCK 1
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#define NS_FONT_DISPLAY_SWAP 2
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#define NS_FONT_DISPLAY_FALLBACK 3
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#define NS_FONT_DISPLAY_OPTIONAL 4
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enum {
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eFeatureAlternates_historical,
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eFeatureAlternates_stylistic,
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eFeatureAlternates_styleset,
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eFeatureAlternates_character_variant,
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eFeatureAlternates_swash,
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eFeatureAlternates_ornaments,
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eFeatureAlternates_annotation,
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eFeatureAlternates_numFeatures
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};
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// alternates - simple enumerated values
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#define NS_FONT_VARIANT_ALTERNATES_HISTORICAL (1 << eFeatureAlternates_historical)
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// alternates - values that use functional syntax
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#define NS_FONT_VARIANT_ALTERNATES_STYLISTIC (1 << eFeatureAlternates_stylistic)
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#define NS_FONT_VARIANT_ALTERNATES_STYLESET (1 << eFeatureAlternates_styleset)
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#define NS_FONT_VARIANT_ALTERNATES_CHARACTER_VARIANT (1 << eFeatureAlternates_character_variant)
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#define NS_FONT_VARIANT_ALTERNATES_SWASH (1 << eFeatureAlternates_swash)
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#define NS_FONT_VARIANT_ALTERNATES_ORNAMENTS (1 << eFeatureAlternates_ornaments)
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#define NS_FONT_VARIANT_ALTERNATES_ANNOTATION (1 << eFeatureAlternates_annotation)
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#define NS_FONT_VARIANT_ALTERNATES_ENUMERATED_MASK \
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NS_FONT_VARIANT_ALTERNATES_HISTORICAL
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#define NS_FONT_VARIANT_ALTERNATES_FUNCTIONAL_MASK ( \
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NS_FONT_VARIANT_ALTERNATES_STYLISTIC | \
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NS_FONT_VARIANT_ALTERNATES_STYLESET | \
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NS_FONT_VARIANT_ALTERNATES_CHARACTER_VARIANT | \
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NS_FONT_VARIANT_ALTERNATES_SWASH | \
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NS_FONT_VARIANT_ALTERNATES_ORNAMENTS | \
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NS_FONT_VARIANT_ALTERNATES_ANNOTATION )
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#define NS_FONT_VARIANT_CAPS_NORMAL 0
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#define NS_FONT_VARIANT_CAPS_SMALLCAPS 1
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#define NS_FONT_VARIANT_CAPS_ALLSMALL 2
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#define NS_FONT_VARIANT_CAPS_PETITECAPS 3
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#define NS_FONT_VARIANT_CAPS_ALLPETITE 4
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#define NS_FONT_VARIANT_CAPS_TITLING 5
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#define NS_FONT_VARIANT_CAPS_UNICASE 6
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enum {
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eFeatureEastAsian_jis78,
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eFeatureEastAsian_jis83,
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eFeatureEastAsian_jis90,
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eFeatureEastAsian_jis04,
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eFeatureEastAsian_simplified,
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eFeatureEastAsian_traditional,
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eFeatureEastAsian_full_width,
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eFeatureEastAsian_prop_width,
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eFeatureEastAsian_ruby,
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eFeatureEastAsian_numFeatures
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};
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#define NS_FONT_VARIANT_EAST_ASIAN_JIS78 (1 << eFeatureEastAsian_jis78)
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#define NS_FONT_VARIANT_EAST_ASIAN_JIS83 (1 << eFeatureEastAsian_jis83)
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#define NS_FONT_VARIANT_EAST_ASIAN_JIS90 (1 << eFeatureEastAsian_jis90)
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#define NS_FONT_VARIANT_EAST_ASIAN_JIS04 (1 << eFeatureEastAsian_jis04)
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#define NS_FONT_VARIANT_EAST_ASIAN_SIMPLIFIED (1 << eFeatureEastAsian_simplified)
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#define NS_FONT_VARIANT_EAST_ASIAN_TRADITIONAL (1 << eFeatureEastAsian_traditional)
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#define NS_FONT_VARIANT_EAST_ASIAN_FULL_WIDTH (1 << eFeatureEastAsian_full_width)
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#define NS_FONT_VARIANT_EAST_ASIAN_PROP_WIDTH (1 << eFeatureEastAsian_prop_width)
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#define NS_FONT_VARIANT_EAST_ASIAN_RUBY (1 << eFeatureEastAsian_ruby)
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#define NS_FONT_VARIANT_EAST_ASIAN_VARIANT_MASK ( \
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NS_FONT_VARIANT_EAST_ASIAN_JIS78 | \
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NS_FONT_VARIANT_EAST_ASIAN_JIS83 | \
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NS_FONT_VARIANT_EAST_ASIAN_JIS90 | \
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NS_FONT_VARIANT_EAST_ASIAN_JIS04 | \
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NS_FONT_VARIANT_EAST_ASIAN_SIMPLIFIED | \
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NS_FONT_VARIANT_EAST_ASIAN_TRADITIONAL )
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#define NS_FONT_VARIANT_EAST_ASIAN_WIDTH_MASK ( \
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NS_FONT_VARIANT_EAST_ASIAN_FULL_WIDTH | \
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NS_FONT_VARIANT_EAST_ASIAN_PROP_WIDTH )
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enum {
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eFeatureLigatures_none,
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eFeatureLigatures_common,
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eFeatureLigatures_no_common,
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eFeatureLigatures_discretionary,
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eFeatureLigatures_no_discretionary,
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eFeatureLigatures_historical,
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eFeatureLigatures_no_historical,
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eFeatureLigatures_contextual,
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eFeatureLigatures_no_contextual,
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eFeatureLigatures_numFeatures
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};
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#define NS_FONT_VARIANT_LIGATURES_NONE (1 << eFeatureLigatures_none)
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#define NS_FONT_VARIANT_LIGATURES_COMMON (1 << eFeatureLigatures_common)
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#define NS_FONT_VARIANT_LIGATURES_NO_COMMON (1 << eFeatureLigatures_no_common)
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#define NS_FONT_VARIANT_LIGATURES_DISCRETIONARY (1 << eFeatureLigatures_discretionary)
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#define NS_FONT_VARIANT_LIGATURES_NO_DISCRETIONARY (1 << eFeatureLigatures_no_discretionary)
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#define NS_FONT_VARIANT_LIGATURES_HISTORICAL (1 << eFeatureLigatures_historical)
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#define NS_FONT_VARIANT_LIGATURES_NO_HISTORICAL (1 << eFeatureLigatures_no_historical)
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#define NS_FONT_VARIANT_LIGATURES_CONTEXTUAL (1 << eFeatureLigatures_contextual)
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#define NS_FONT_VARIANT_LIGATURES_NO_CONTEXTUAL (1 << eFeatureLigatures_no_contextual)
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#define NS_FONT_VARIANT_LIGATURES_COMMON_MASK ( \
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NS_FONT_VARIANT_LIGATURES_COMMON | \
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NS_FONT_VARIANT_LIGATURES_NO_COMMON )
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#define NS_FONT_VARIANT_LIGATURES_DISCRETIONARY_MASK ( \
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NS_FONT_VARIANT_LIGATURES_DISCRETIONARY | \
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NS_FONT_VARIANT_LIGATURES_NO_DISCRETIONARY )
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#define NS_FONT_VARIANT_LIGATURES_HISTORICAL_MASK ( \
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NS_FONT_VARIANT_LIGATURES_HISTORICAL | \
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NS_FONT_VARIANT_LIGATURES_NO_HISTORICAL )
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#define NS_FONT_VARIANT_LIGATURES_CONTEXTUAL_MASK \
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NS_FONT_VARIANT_LIGATURES_CONTEXTUAL | \
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NS_FONT_VARIANT_LIGATURES_NO_CONTEXTUAL
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enum {
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eFeatureNumeric_lining,
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eFeatureNumeric_oldstyle,
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eFeatureNumeric_proportional,
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eFeatureNumeric_tabular,
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eFeatureNumeric_diagonal_fractions,
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eFeatureNumeric_stacked_fractions,
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eFeatureNumeric_slashedzero,
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eFeatureNumeric_ordinal,
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eFeatureNumeric_numFeatures
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};
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#define NS_FONT_VARIANT_NUMERIC_LINING (1 << eFeatureNumeric_lining)
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#define NS_FONT_VARIANT_NUMERIC_OLDSTYLE (1 << eFeatureNumeric_oldstyle)
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#define NS_FONT_VARIANT_NUMERIC_PROPORTIONAL (1 << eFeatureNumeric_proportional)
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#define NS_FONT_VARIANT_NUMERIC_TABULAR (1 << eFeatureNumeric_tabular)
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#define NS_FONT_VARIANT_NUMERIC_DIAGONAL_FRACTIONS (1 << eFeatureNumeric_diagonal_fractions)
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#define NS_FONT_VARIANT_NUMERIC_STACKED_FRACTIONS (1 << eFeatureNumeric_stacked_fractions)
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#define NS_FONT_VARIANT_NUMERIC_SLASHZERO (1 << eFeatureNumeric_slashedzero)
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#define NS_FONT_VARIANT_NUMERIC_ORDINAL (1 << eFeatureNumeric_ordinal)
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#define NS_FONT_VARIANT_NUMERIC_FIGURE_MASK \
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NS_FONT_VARIANT_NUMERIC_LINING | \
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NS_FONT_VARIANT_NUMERIC_OLDSTYLE
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#define NS_FONT_VARIANT_NUMERIC_SPACING_MASK \
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NS_FONT_VARIANT_NUMERIC_PROPORTIONAL | \
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NS_FONT_VARIANT_NUMERIC_TABULAR
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#define NS_FONT_VARIANT_NUMERIC_FRACTION_MASK \
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NS_FONT_VARIANT_NUMERIC_DIAGONAL_FRACTIONS | \
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NS_FONT_VARIANT_NUMERIC_STACKED_FRACTIONS
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#define NS_FONT_VARIANT_POSITION_NORMAL 0
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#define NS_FONT_VARIANT_POSITION_SUPER 1
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#define NS_FONT_VARIANT_POSITION_SUB 2
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#define NS_FONT_VARIANT_WIDTH_NORMAL 0
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#define NS_FONT_VARIANT_WIDTH_FULL 1
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#define NS_FONT_VARIANT_WIDTH_HALF 2
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#define NS_FONT_VARIANT_WIDTH_THIRD 3
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#define NS_FONT_VARIANT_WIDTH_QUARTER 4
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// based on fixed offset values used within WebKit
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#define NS_FONT_SUBSCRIPT_OFFSET_RATIO (0.20)
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#define NS_FONT_SUPERSCRIPT_OFFSET_RATIO (0.34)
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// this roughly corresponds to font-size: smaller behavior
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// at smaller sizes <20px the ratio is closer to 0.8 while at
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// larger sizes >45px the ratio is closer to 0.667 and in between
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// a blend of values is used
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#define NS_FONT_SUB_SUPER_SIZE_RATIO_SMALL (0.82)
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#define NS_FONT_SUB_SUPER_SIZE_RATIO_LARGE (0.667)
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#define NS_FONT_SUB_SUPER_SMALL_SIZE (20.0)
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#define NS_FONT_SUB_SUPER_LARGE_SIZE (45.0)
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// pref lang ids for font prefs
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enum eFontPrefLang {
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#define FONT_PREF_LANG(enum_id_, str_, atom_id_) eFontPrefLang_ ## enum_id_
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#include "gfxFontPrefLangList.h"
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#undef FONT_PREF_LANG
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, eFontPrefLang_CJKSet // special code for CJK set
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, eFontPrefLang_Emoji // special code for emoji presentation
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, eFontPrefLang_First = eFontPrefLang_Western
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, eFontPrefLang_Last = eFontPrefLang_Others
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, eFontPrefLang_Count = (eFontPrefLang_Last - eFontPrefLang_First + 1)
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};
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#endif
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