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/*
* Copyright (C) 2000 Red Hat Software
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <pango/pango-types.h>
#include <glib-object.h>
#include <hb.h>
G_BEGIN_DECLS
/**
* PangoFontDescription:
*
* A `PangoFontDescription` describes a font in an implementation-independent
* manner.
*
* `PangoFontDescription` structures are used both to list what fonts are
* available on the system and also for specifying the characteristics of
* a font to load.
*/
/**
* PangoStyle:
* @PANGO_STYLE_NORMAL: the font is upright.
* @PANGO_STYLE_OBLIQUE: the font is slanted, but in a roman style.
* @PANGO_STYLE_ITALIC: the font is slanted in an italic style.
*
* An enumeration specifying the various slant styles possible for a font.
**/
typedef enum {
PANGO_STYLE_NORMAL,
PANGO_STYLE_OBLIQUE,
PANGO_STYLE_ITALIC
} PangoStyle;
/**
* PangoVariant:
* @PANGO_VARIANT_NORMAL: A normal font.
* @PANGO_VARIANT_SMALL_CAPS: A font with the lower case characters
* replaced by smaller variants of the capital characters.
* @PANGO_VARIANT_ALL_SMALL_CAPS: A font with all characters
* replaced by smaller variants of the capital characters.
* @PANGO_VARIANT_PETITE_CAPS: A font with the lower case characters
* replaced by smaller variants of the capital characters.
* Petite Caps can be even smaller than Small Caps.
* @PANGO_VARIANT_ALL_PETITE_CAPS: A font with all characters
* replaced by smaller variants of the capital characters.
* Petite Caps can be even smaller than Small Caps.
* @PANGO_VARIANT_UNICASE: A font with the upper case characters
* replaced by smaller variants of the capital letters.
* @PANGO_VARIANT_TITLE_CAPS: A font with capital letters that
* are more suitable for all-uppercase titles.
*
* An enumeration specifying capitalization variant of the font.
*/
typedef enum {
PANGO_VARIANT_NORMAL,
PANGO_VARIANT_SMALL_CAPS,
PANGO_VARIANT_ALL_SMALL_CAPS,
PANGO_VARIANT_PETITE_CAPS,
PANGO_VARIANT_ALL_PETITE_CAPS,
PANGO_VARIANT_UNICASE,
PANGO_VARIANT_TITLE_CAPS
} PangoVariant;
/**
* PangoWeight:
* @PANGO_WEIGHT_THIN: the thin weight (= 100)
* @PANGO_WEIGHT_ULTRALIGHT: the ultralight weight (= 200)
* @PANGO_WEIGHT_LIGHT: the light weight (= 300)
* @PANGO_WEIGHT_SEMILIGHT: the semilight weight (= 350)
* @PANGO_WEIGHT_BOOK: the book weight (= 380)
* @PANGO_WEIGHT_NORMAL: the default weight (= 400)
* @PANGO_WEIGHT_MEDIUM: the normal weight (= 500)
* @PANGO_WEIGHT_SEMIBOLD: the semibold weight (= 600)
* @PANGO_WEIGHT_BOLD: the bold weight (= 700)
* @PANGO_WEIGHT_ULTRABOLD: the ultrabold weight (= 800)
* @PANGO_WEIGHT_HEAVY: the heavy weight (= 900)
* @PANGO_WEIGHT_ULTRAHEAVY: the ultraheavy weight (= 1000)
*
* A `PangoWeight` specifes the weight (boldness) of a font.
*
* Weight is specified as a numeric value ranging from 100 to 1000.
* This enumeration simply provides some common, predefined values.
*/
typedef enum {
PANGO_WEIGHT_THIN = 100,
PANGO_WEIGHT_ULTRALIGHT = 200,
PANGO_WEIGHT_LIGHT = 300,
PANGO_WEIGHT_SEMILIGHT = 350,
PANGO_WEIGHT_BOOK = 380,
PANGO_WEIGHT_NORMAL = 400,
PANGO_WEIGHT_MEDIUM = 500,
PANGO_WEIGHT_SEMIBOLD = 600,
PANGO_WEIGHT_BOLD = 700,
PANGO_WEIGHT_ULTRABOLD = 800,
PANGO_WEIGHT_HEAVY = 900,
PANGO_WEIGHT_ULTRAHEAVY = 1000
} PangoWeight;
/**
* PangoStretch:
* @PANGO_STRETCH_ULTRA_CONDENSED: ultra-condensed width (= 500)
* @PANGO_STRETCH_EXTRA_CONDENSED: extra-condensed width (= 625)
* @PANGO_STRETCH_CONDENSED: condensed width (= 750)
* @PANGO_STRETCH_SEMI_CONDENSED: semi-condensed width (= 875)
* @PANGO_STRETCH_NORMAL: the normal width (= 1000)
* @PANGO_STRETCH_SEMI_EXPANDED: semi-expanded width (= 1125)
* @PANGO_STRETCH_EXPANDED: expanded width (= 1250)
* @PANGO_STRETCH_EXTRA_EXPANDED: extra-expanded width (= 1500)
* @PANGO_STRETCH_ULTRA_EXPANDED: ultra-expanded width (= 2000)
*
* A `PangoStretch` specifes the width of the font relative
* to other designs within a family.
*
* Stretch is specified as a numeric value ranging from 500 to 2000.
* This enumeration simply provides some common, predefined values.
*/
typedef enum {
PANGO_STRETCH_ULTRA_CONDENSED = 500,
PANGO_STRETCH_EXTRA_CONDENSED = 625,
PANGO_STRETCH_CONDENSED = 750,
PANGO_STRETCH_SEMI_CONDENSED = 875,
PANGO_STRETCH_NORMAL = 1000,
PANGO_STRETCH_SEMI_EXPANDED = 1125,
PANGO_STRETCH_EXPANDED = 1250,
PANGO_STRETCH_EXTRA_EXPANDED = 1500,
PANGO_STRETCH_ULTRA_EXPANDED = 2000
} PangoStretch;
/**
* PangoFontMask:
* @PANGO_FONT_MASK_FAMILY: the font family is specified.
* @PANGO_FONT_MASK_STYLE: the font style is specified.
* @PANGO_FONT_MASK_VARIANT: the font variant is specified.
* @PANGO_FONT_MASK_WEIGHT: the font weight is specified.
* @PANGO_FONT_MASK_STRETCH: the font stretch is specified.
* @PANGO_FONT_MASK_SIZE: the font size is specified.
* @PANGO_FONT_MASK_GRAVITY: the font gravity is specified
* @PANGO_FONT_MASK_VARIATIONS: OpenType font variations are specified
* @PANGO_FONT_MASK_FACEID: the face ID is specified
*
* The bits in a `PangoFontMask` correspond to the set fields in a
* `PangoFontDescription`.
*/
typedef enum {
PANGO_FONT_MASK_FAMILY = 1 << 0,
PANGO_FONT_MASK_STYLE = 1 << 1,
PANGO_FONT_MASK_VARIANT = 1 << 2,
PANGO_FONT_MASK_WEIGHT = 1 << 3,
PANGO_FONT_MASK_STRETCH = 1 << 4,
PANGO_FONT_MASK_SIZE = 1 << 5,
PANGO_FONT_MASK_GRAVITY = 1 << 6,
PANGO_FONT_MASK_VARIATIONS = 1 << 7,
PANGO_FONT_MASK_FACEID = 1 << 8,
} PangoFontMask;
/* CSS scale factors (1.2 factor between each size) */
/**
* PANGO_SCALE_XX_SMALL:
*
* The scale factor for three shrinking steps (1 / (1.2 * 1.2 * 1.2)).
*/
/**
* PANGO_SCALE_X_SMALL:
*
* The scale factor for two shrinking steps (1 / (1.2 * 1.2)).
*/
/**
* PANGO_SCALE_SMALL:
*
* The scale factor for one shrinking step (1 / 1.2).
*/
/**
* PANGO_SCALE_MEDIUM:
*
* The scale factor for normal size (1.0).
*/
/**
* PANGO_SCALE_LARGE:
*
* The scale factor for one magnification step (1.2).
*/
/**
* PANGO_SCALE_X_LARGE:
*
* The scale factor for two magnification steps (1.2 * 1.2).
*/
/**
* PANGO_SCALE_XX_LARGE:
*
* The scale factor for three magnification steps (1.2 * 1.2 * 1.2).
*/
#define PANGO_SCALE_XX_SMALL ((double)0.5787037037037)
#define PANGO_SCALE_X_SMALL ((double)0.6944444444444)
#define PANGO_SCALE_SMALL ((double)0.8333333333333)
#define PANGO_SCALE_MEDIUM ((double)1.0)
#define PANGO_SCALE_LARGE ((double)1.2)
#define PANGO_SCALE_X_LARGE ((double)1.44)
#define PANGO_SCALE_XX_LARGE ((double)1.728)
#define PANGO_TYPE_FONT_DESCRIPTION (pango_font_description_get_type ())
PANGO_AVAILABLE_IN_ALL
GType pango_font_description_get_type (void) G_GNUC_CONST;
PANGO_AVAILABLE_IN_ALL
PangoFontDescription * pango_font_description_new (void);
PANGO_AVAILABLE_IN_ALL
PangoFontDescription * pango_font_description_copy (const PangoFontDescription *desc);
PANGO_AVAILABLE_IN_ALL
PangoFontDescription * pango_font_description_copy_static (const PangoFontDescription *desc);
PANGO_AVAILABLE_IN_ALL
guint pango_font_description_hash (const PangoFontDescription *desc) G_GNUC_PURE;
PANGO_AVAILABLE_IN_ALL
gboolean pango_font_description_equal (const PangoFontDescription *desc1,
const PangoFontDescription *desc2) G_GNUC_PURE;
PANGO_AVAILABLE_IN_ALL
void pango_font_description_free (PangoFontDescription *desc);
PANGO_AVAILABLE_IN_ALL
void pango_font_description_set_family (PangoFontDescription *desc,
const char *family);
PANGO_AVAILABLE_IN_ALL
void pango_font_description_set_family_static (PangoFontDescription *desc,
const char *family);
PANGO_AVAILABLE_IN_ALL
const char * pango_font_description_get_family (const PangoFontDescription *desc) G_GNUC_PURE;
PANGO_AVAILABLE_IN_ALL
void pango_font_description_set_style (PangoFontDescription *desc,
PangoStyle style);
PANGO_AVAILABLE_IN_ALL
PangoStyle pango_font_description_get_style (const PangoFontDescription *desc) G_GNUC_PURE;
PANGO_AVAILABLE_IN_ALL
void pango_font_description_set_variant (PangoFontDescription *desc,
PangoVariant variant);
PANGO_AVAILABLE_IN_ALL
PangoVariant pango_font_description_get_variant (const PangoFontDescription *desc) G_GNUC_PURE;
PANGO_AVAILABLE_IN_ALL
void pango_font_description_set_weight (PangoFontDescription *desc,
PangoWeight weight);
PANGO_AVAILABLE_IN_ALL
PangoWeight pango_font_description_get_weight (const PangoFontDescription *desc) G_GNUC_PURE;
PANGO_AVAILABLE_IN_ALL
void pango_font_description_set_stretch (PangoFontDescription *desc,
PangoStretch stretch);
PANGO_AVAILABLE_IN_ALL
PangoStretch pango_font_description_get_stretch (const PangoFontDescription *desc) G_GNUC_PURE;
PANGO_AVAILABLE_IN_ALL
void pango_font_description_set_size (PangoFontDescription *desc,
int size);
PANGO_AVAILABLE_IN_ALL
int pango_font_description_get_size (const PangoFontDescription *desc) G_GNUC_PURE;
PANGO_AVAILABLE_IN_ALL
void pango_font_description_set_absolute_size (PangoFontDescription *desc,
double size);
PANGO_AVAILABLE_IN_ALL
gboolean pango_font_description_get_size_is_absolute (const PangoFontDescription *desc) G_GNUC_PURE;
PANGO_AVAILABLE_IN_ALL
void pango_font_description_set_gravity (PangoFontDescription *desc,
PangoGravity gravity);
PANGO_AVAILABLE_IN_ALL
PangoGravity pango_font_description_get_gravity (const PangoFontDescription *desc) G_GNUC_PURE;
PANGO_AVAILABLE_IN_ALL
void pango_font_description_set_variations_static (PangoFontDescription *desc,
const char *variations);
PANGO_AVAILABLE_IN_ALL
void pango_font_description_set_variations (PangoFontDescription *desc,
const char *variations);
PANGO_AVAILABLE_IN_ALL
const char * pango_font_description_get_variations (const PangoFontDescription *desc) G_GNUC_PURE;
PANGO_AVAILABLE_IN_ALL
void pango_font_description_set_faceid (PangoFontDescription *desc,
const char *faceid);
PANGO_AVAILABLE_IN_ALL
void pango_font_description_set_faceid_static (PangoFontDescription *desc,
const char *faceid);
PANGO_AVAILABLE_IN_ALL
const char * pango_font_description_get_faceid (const PangoFontDescription *desc) G_GNUC_PURE;
PANGO_AVAILABLE_IN_ALL
PangoFontMask pango_font_description_get_set_fields (const PangoFontDescription *desc) G_GNUC_PURE;
PANGO_AVAILABLE_IN_ALL
void pango_font_description_unset_fields (PangoFontDescription *desc,
PangoFontMask to_unset);
PANGO_AVAILABLE_IN_ALL
void pango_font_description_merge (PangoFontDescription *desc,
const PangoFontDescription *desc_to_merge,
gboolean replace_existing);
PANGO_AVAILABLE_IN_ALL
void pango_font_description_merge_static (PangoFontDescription *desc,
const PangoFontDescription *desc_to_merge,
gboolean replace_existing);
PANGO_AVAILABLE_IN_ALL
PangoFontDescription * pango_font_description_from_string (const char *str);
PANGO_AVAILABLE_IN_ALL
char * pango_font_description_to_string (const PangoFontDescription *desc);
G_DEFINE_AUTOPTR_CLEANUP_FUNC(PangoFontDescription, pango_font_description_free)
G_END_DECLS
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