diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/hb-font.h')
| -rw-r--r-- | src/3rdparty/harfbuzz-ng/src/hb-font.h | 643 |
1 files changed, 537 insertions, 106 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-font.h b/src/3rdparty/harfbuzz-ng/src/hb-font.h index 01ff201aee..3c2355af2d 100644 --- a/src/3rdparty/harfbuzz-ng/src/hb-font.h +++ b/src/3rdparty/harfbuzz-ng/src/hb-font.h @@ -24,7 +24,7 @@ * Red Hat Author(s): Behdad Esfahbod */ -#ifndef HB_H_IN +#if !defined(HB_H_IN) && !defined(HB_NO_SINGLE_HEADER_ERROR) #error "Include <hb.h> instead." #endif @@ -33,17 +33,28 @@ #include "hb-common.h" #include "hb-face.h" +#include "hb-draw.h" +#include "hb-paint.h" HB_BEGIN_DECLS - -typedef struct hb_font_t hb_font_t; - - /* * hb_font_funcs_t */ +/** + * hb_font_funcs_t: + * + * Data type containing a set of virtual methods used for + * working on #hb_font_t font objects. + * + * HarfBuzz provides a lightweight default function for each of + * the methods in #hb_font_funcs_t. Client programs can implement + * their own replacements for the individual font functions, as + * needed, and replace the default by calling the setter for a + * method. + * + **/ typedef struct hb_font_funcs_t hb_font_funcs_t; HB_EXTERN hb_font_funcs_t * @@ -67,8 +78,8 @@ hb_font_funcs_set_user_data (hb_font_funcs_t *ffuncs, HB_EXTERN void * -hb_font_funcs_get_user_data (hb_font_funcs_t *ffuncs, - hb_user_data_key_t *key); +hb_font_funcs_get_user_data (const hb_font_funcs_t *ffuncs, + hb_user_data_key_t *key); HB_EXTERN void @@ -78,14 +89,23 @@ HB_EXTERN hb_bool_t hb_font_funcs_is_immutable (hb_font_funcs_t *ffuncs); -/* font and glyph extents */ +/* font extents */ -/* Note that typically ascender is positive and descender negative in coordinate systems that grow up. */ -typedef struct hb_font_extents_t -{ - hb_position_t ascender; /* typographic ascender. */ - hb_position_t descender; /* typographic descender. */ - hb_position_t line_gap; /* suggested line spacing gap. */ +/** + * hb_font_extents_t: + * @ascender: The height of typographic ascenders. + * @descender: The depth of typographic descenders. + * @line_gap: The suggested line-spacing gap. + * + * Font-wide extent values, measured in font units. + * + * Note that typically @ascender is positive and @descender + * negative, in coordinate systems that grow up. + **/ +typedef struct hb_font_extents_t { + hb_position_t ascender; + hb_position_t descender; + hb_position_t line_gap; /*< private >*/ hb_position_t reserved9; hb_position_t reserved8; @@ -98,33 +118,112 @@ typedef struct hb_font_extents_t hb_position_t reserved1; } hb_font_extents_t; -/* Note that height is negative in coordinate systems that grow up. */ -typedef struct hb_glyph_extents_t -{ - hb_position_t x_bearing; /* left side of glyph from origin. */ - hb_position_t y_bearing; /* top side of glyph from origin. */ - hb_position_t width; /* distance from left to right side. */ - hb_position_t height; /* distance from top to bottom side. */ -} hb_glyph_extents_t; - /* func types */ +/** + * hb_font_get_font_extents_func_t: + * @font: #hb_font_t to work upon + * @font_data: @font user data pointer + * @extents: (out): The font extents retrieved + * @user_data: User data pointer passed by the caller + * + * This method should retrieve the extents for a font. + * + **/ typedef hb_bool_t (*hb_font_get_font_extents_func_t) (hb_font_t *font, void *font_data, hb_font_extents_t *extents, void *user_data); + +/** + * hb_font_get_font_h_extents_func_t: + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * This method should retrieve the extents for a font, for horizontal-direction + * text segments. Extents must be returned in an #hb_glyph_extents output + * parameter. + * + **/ typedef hb_font_get_font_extents_func_t hb_font_get_font_h_extents_func_t; + +/** + * hb_font_get_font_v_extents_func_t: + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * This method should retrieve the extents for a font, for vertical-direction + * text segments. Extents must be returned in an #hb_glyph_extents output + * parameter. + * + **/ typedef hb_font_get_font_extents_func_t hb_font_get_font_v_extents_func_t; +/** + * hb_font_get_nominal_glyph_func_t: + * @font: #hb_font_t to work upon + * @font_data: @font user data pointer + * @unicode: The Unicode code point to query + * @glyph: (out): The glyph ID retrieved + * @user_data: User data pointer passed by the caller + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * This method should retrieve the nominal glyph ID for a specified Unicode code + * point. Glyph IDs must be returned in a #hb_codepoint_t output parameter. + * + * Return value: `true` if data found, `false` otherwise + * + **/ typedef hb_bool_t (*hb_font_get_nominal_glyph_func_t) (hb_font_t *font, void *font_data, hb_codepoint_t unicode, hb_codepoint_t *glyph, void *user_data); + +/** + * hb_font_get_variation_glyph_func_t: + * @font: #hb_font_t to work upon + * @font_data: @font user data pointer + * @unicode: The Unicode code point to query + * @variation_selector: The variation-selector code point to query + * @glyph: (out): The glyph ID retrieved + * @user_data: User data pointer passed by the caller + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * This method should retrieve the glyph ID for a specified Unicode code point + * followed by a specified Variation Selector code point. Glyph IDs must be + * returned in a #hb_codepoint_t output parameter. + * + * Return value: `true` if data found, `false` otherwise + * + **/ typedef hb_bool_t (*hb_font_get_variation_glyph_func_t) (hb_font_t *font, void *font_data, hb_codepoint_t unicode, hb_codepoint_t variation_selector, hb_codepoint_t *glyph, void *user_data); + +/** + * hb_font_get_nominal_glyphs_func_t: + * @font: #hb_font_t to work upon + * @font_data: @font user data pointer + * @count: number of code points to query + * @first_unicode: The first Unicode code point to query + * @unicode_stride: The stride between successive code points + * @first_glyph: (out): The first glyph ID retrieved + * @glyph_stride: The stride between successive glyph IDs + * @user_data: User data pointer passed by the caller + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * This method should retrieve the nominal glyph IDs for a sequence of + * Unicode code points. Glyph IDs must be returned in a #hb_codepoint_t + * output parameter. + * + * Return value: the number of code points processed + * + **/ typedef unsigned int (*hb_font_get_nominal_glyphs_func_t) (hb_font_t *font, void *font_data, unsigned int count, const hb_codepoint_t *first_unicode, @@ -133,13 +232,65 @@ typedef unsigned int (*hb_font_get_nominal_glyphs_func_t) (hb_font_t *font, void unsigned int glyph_stride, void *user_data); - +/** + * hb_font_get_glyph_advance_func_t: + * @font: #hb_font_t to work upon + * @font_data: @font user data pointer + * @glyph: The glyph ID to query + * @user_data: User data pointer passed by the caller + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * This method should retrieve the advance for a specified glyph. The + * method must return an #hb_position_t. + * + * Return value: The advance of @glyph within @font + * + **/ typedef hb_position_t (*hb_font_get_glyph_advance_func_t) (hb_font_t *font, void *font_data, hb_codepoint_t glyph, void *user_data); + +/** + * hb_font_get_glyph_h_advance_func_t: + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * This method should retrieve the advance for a specified glyph, in + * horizontal-direction text segments. Advances must be returned in + * an #hb_position_t output parameter. + * + **/ typedef hb_font_get_glyph_advance_func_t hb_font_get_glyph_h_advance_func_t; + +/** + * hb_font_get_glyph_v_advance_func_t: + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * This method should retrieve the advance for a specified glyph, in + * vertical-direction text segments. Advances must be returned in + * an #hb_position_t output parameter. + * + **/ typedef hb_font_get_glyph_advance_func_t hb_font_get_glyph_v_advance_func_t; +/** + * hb_font_get_glyph_advances_func_t: + * @font: #hb_font_t to work upon + * @font_data: @font user data pointer + * @count: The number of glyph IDs in the sequence queried + * @first_glyph: The first glyph ID to query + * @glyph_stride: The stride between successive glyph IDs + * @first_advance: (out): The first advance retrieved + * @advance_stride: The stride between successive advances + * @user_data: User data pointer passed by the caller + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * This method should retrieve the advances for a sequence of glyphs. + * + **/ typedef void (*hb_font_get_glyph_advances_func_t) (hb_font_t* font, void* font_data, unsigned int count, const hb_codepoint_t *first_glyph, @@ -147,52 +298,244 @@ typedef void (*hb_font_get_glyph_advances_func_t) (hb_font_t* font, void* font_d hb_position_t *first_advance, unsigned advance_stride, void *user_data); + +/** + * hb_font_get_glyph_h_advances_func_t: + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * This method should retrieve the advances for a sequence of glyphs, in + * horizontal-direction text segments. + * + **/ typedef hb_font_get_glyph_advances_func_t hb_font_get_glyph_h_advances_func_t; + +/** + * hb_font_get_glyph_v_advances_func_t: + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * This method should retrieve the advances for a sequence of glyphs, in + * vertical-direction text segments. + * + **/ typedef hb_font_get_glyph_advances_func_t hb_font_get_glyph_v_advances_func_t; +/** + * hb_font_get_glyph_origin_func_t: + * @font: #hb_font_t to work upon + * @font_data: @font user data pointer + * @glyph: The glyph ID to query + * @x: (out): The X coordinate of the origin + * @y: (out): The Y coordinate of the origin + * @user_data: User data pointer passed by the caller + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * This method should retrieve the (X,Y) coordinates (in font units) of the + * origin for a glyph. Each coordinate must be returned in an #hb_position_t + * output parameter. + * + * Return value: `true` if data found, `false` otherwise + * + **/ typedef hb_bool_t (*hb_font_get_glyph_origin_func_t) (hb_font_t *font, void *font_data, hb_codepoint_t glyph, hb_position_t *x, hb_position_t *y, void *user_data); + +/** + * hb_font_get_glyph_h_origin_func_t: + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * This method should retrieve the (X,Y) coordinates (in font units) of the + * origin for a glyph, for horizontal-direction text segments. Each + * coordinate must be returned in an #hb_position_t output parameter. + * + **/ typedef hb_font_get_glyph_origin_func_t hb_font_get_glyph_h_origin_func_t; + +/** + * hb_font_get_glyph_v_origin_func_t: + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * This method should retrieve the (X,Y) coordinates (in font units) of the + * origin for a glyph, for vertical-direction text segments. Each coordinate + * must be returned in an #hb_position_t output parameter. + * + **/ typedef hb_font_get_glyph_origin_func_t hb_font_get_glyph_v_origin_func_t; +/** + * hb_font_get_glyph_kerning_func_t: + * @font: #hb_font_t to work upon + * @font_data: @font user data pointer + * @first_glyph: The glyph ID of the first glyph in the glyph pair + * @second_glyph: The glyph ID of the second glyph in the glyph pair + * @user_data: User data pointer passed by the caller + * + * This method should retrieve the kerning-adjustment value for a glyph-pair in + * the specified font, for horizontal text segments. + * + **/ typedef hb_position_t (*hb_font_get_glyph_kerning_func_t) (hb_font_t *font, void *font_data, hb_codepoint_t first_glyph, hb_codepoint_t second_glyph, void *user_data); +/** + * hb_font_get_glyph_h_kerning_func_t: + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * This method should retrieve the kerning-adjustment value for a glyph-pair in + * the specified font, for horizontal text segments. + * + **/ typedef hb_font_get_glyph_kerning_func_t hb_font_get_glyph_h_kerning_func_t; +/** + * hb_font_get_glyph_extents_func_t: + * @font: #hb_font_t to work upon + * @font_data: @font user data pointer + * @glyph: The glyph ID to query + * @extents: (out): The #hb_glyph_extents_t retrieved + * @user_data: User data pointer passed by the caller + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * This method should retrieve the extents for a specified glyph. Extents must be + * returned in an #hb_glyph_extents output parameter. + * + * Return value: `true` if data found, `false` otherwise + * + **/ typedef hb_bool_t (*hb_font_get_glyph_extents_func_t) (hb_font_t *font, void *font_data, hb_codepoint_t glyph, hb_glyph_extents_t *extents, void *user_data); + +/** + * hb_font_get_glyph_contour_point_func_t: + * @font: #hb_font_t to work upon + * @font_data: @font user data pointer + * @glyph: The glyph ID to query + * @point_index: The contour-point index to query + * @x: (out): The X value retrieved for the contour point + * @y: (out): The Y value retrieved for the contour point + * @user_data: User data pointer passed by the caller + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * This method should retrieve the (X,Y) coordinates (in font units) for a + * specified contour point in a glyph. Each coordinate must be returned as + * an #hb_position_t output parameter. + * + * Return value: `true` if data found, `false` otherwise + * + **/ typedef hb_bool_t (*hb_font_get_glyph_contour_point_func_t) (hb_font_t *font, void *font_data, hb_codepoint_t glyph, unsigned int point_index, hb_position_t *x, hb_position_t *y, void *user_data); +/** + * hb_font_get_glyph_name_func_t: + * @font: #hb_font_t to work upon + * @font_data: @font user data pointer + * @glyph: The glyph ID to query + * @name: (out) (array length=size): Name string retrieved for the glyph ID + * @size: Length of the glyph-name string retrieved + * @user_data: User data pointer passed by the caller + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * This method should retrieve the glyph name that corresponds to a + * glyph ID. The name should be returned in a string output parameter. + * + * Return value: `true` if data found, `false` otherwise + * + **/ typedef hb_bool_t (*hb_font_get_glyph_name_func_t) (hb_font_t *font, void *font_data, hb_codepoint_t glyph, char *name, unsigned int size, void *user_data); + +/** + * hb_font_get_glyph_from_name_func_t: + * @font: #hb_font_t to work upon + * @font_data: @font user data pointer + * @name: (array length=len): The name string to query + * @len: The length of the name queried + * @glyph: (out): The glyph ID retrieved + * @user_data: User data pointer passed by the caller + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * This method should retrieve the glyph ID that corresponds to a glyph-name + * string. + * + * Return value: `true` if data found, `false` otherwise + * + **/ typedef hb_bool_t (*hb_font_get_glyph_from_name_func_t) (hb_font_t *font, void *font_data, const char *name, int len, /* -1 means nul-terminated */ hb_codepoint_t *glyph, void *user_data); +/** + * hb_font_draw_glyph_func_t: + * @font: #hb_font_t to work upon + * @font_data: @font user data pointer + * @glyph: The glyph ID to query + * @draw_funcs: The draw functions to send the shape data to + * @draw_data: The data accompanying the draw functions + * @user_data: User data pointer passed by the caller + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * Since: 7.0.0 + * + **/ +typedef void (*hb_font_draw_glyph_func_t) (hb_font_t *font, void *font_data, + hb_codepoint_t glyph, + hb_draw_funcs_t *draw_funcs, void *draw_data, + void *user_data); + +/** + * hb_font_paint_glyph_func_t: + * @font: #hb_font_t to work upon + * @font_data: @font user data pointer + * @glyph: The glyph ID to query + * @paint_funcs: The paint functions to use + * @paint_data: The data accompanying the paint functions + * @palette_index: The color palette to use + * @foreground: The foreground color + * @user_data: User data pointer passed by the caller + * + * A virtual method for the #hb_font_funcs_t of an #hb_font_t object. + * + * Since: 7.0.0 + */ +typedef void (*hb_font_paint_glyph_func_t) (hb_font_t *font, void *font_data, + hb_codepoint_t glyph, + hb_paint_funcs_t *paint_funcs, void *paint_data, + unsigned int palette_index, + hb_color_t foreground, + void *user_data); /* func setters */ /** * hb_font_funcs_set_font_h_extents_func: - * @ffuncs: font functions. - * @func: (closure user_data) (destroy destroy) (scope notified): - * @user_data: - * @destroy: - * + * @ffuncs: A font-function structure + * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign + * @user_data: Data to pass to @func + * @destroy: (nullable): The function to call when @user_data is not needed anymore * + * Sets the implementation function for #hb_font_get_font_h_extents_func_t. * * Since: 1.1.2 **/ @@ -203,12 +546,12 @@ hb_font_funcs_set_font_h_extents_func (hb_font_funcs_t *ffuncs, /** * hb_font_funcs_set_font_v_extents_func: - * @ffuncs: font functions. - * @func: (closure user_data) (destroy destroy) (scope notified): - * @user_data: - * @destroy: - * + * @ffuncs: A font-function structure + * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign + * @user_data: Data to pass to @func + * @destroy: (nullable): The function to call when @user_data is not needed anymore * + * Sets the implementation function for #hb_font_get_font_v_extents_func_t. * * Since: 1.1.2 **/ @@ -219,12 +562,12 @@ hb_font_funcs_set_font_v_extents_func (hb_font_funcs_t *ffuncs, /** * hb_font_funcs_set_nominal_glyph_func: - * @ffuncs: font functions. - * @func: (closure user_data) (destroy destroy) (scope notified): - * @user_data: - * @destroy: - * + * @ffuncs: A font-function structure + * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign + * @user_data: Data to pass to @func + * @destroy: (nullable): The function to call when @user_data is not needed anymore * + * Sets the implementation function for #hb_font_get_nominal_glyph_func_t. * * Since: 1.2.3 **/ @@ -235,12 +578,12 @@ hb_font_funcs_set_nominal_glyph_func (hb_font_funcs_t *ffuncs, /** * hb_font_funcs_set_nominal_glyphs_func: - * @ffuncs: font functions. - * @func: (closure user_data) (destroy destroy) (scope notified): - * @user_data: - * @destroy: - * + * @ffuncs: A font-function structure + * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign + * @user_data: Data to pass to @func + * @destroy: (nullable): The function to call when @user_data is not needed anymore * + * Sets the implementation function for #hb_font_get_nominal_glyphs_func_t. * * Since: 2.0.0 **/ @@ -251,12 +594,12 @@ hb_font_funcs_set_nominal_glyphs_func (hb_font_funcs_t *ffuncs, /** * hb_font_funcs_set_variation_glyph_func: - * @ffuncs: font functions. - * @func: (closure user_data) (destroy destroy) (scope notified): - * @user_data: - * @destroy: - * + * @ffuncs: A font-function structure + * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign + * @user_data: Data to pass to @func + * @destroy: (nullable): The function to call when @user_data is not needed anymore * + * Sets the implementation function for #hb_font_get_variation_glyph_func_t. * * Since: 1.2.3 **/ @@ -267,12 +610,12 @@ hb_font_funcs_set_variation_glyph_func (hb_font_funcs_t *ffuncs, /** * hb_font_funcs_set_glyph_h_advance_func: - * @ffuncs: font functions. - * @func: (closure user_data) (destroy destroy) (scope notified): - * @user_data: - * @destroy: - * + * @ffuncs: A font-function structure + * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign + * @user_data: Data to pass to @func + * @destroy: (nullable): The function to call when @user_data is not needed anymore * + * Sets the implementation function for #hb_font_get_glyph_h_advance_func_t. * * Since: 0.9.2 **/ @@ -283,12 +626,12 @@ hb_font_funcs_set_glyph_h_advance_func (hb_font_funcs_t *ffuncs, /** * hb_font_funcs_set_glyph_v_advance_func: - * @ffuncs: font functions. - * @func: (closure user_data) (destroy destroy) (scope notified): - * @user_data: - * @destroy: - * + * @ffuncs: A font-function structure + * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign + * @user_data: Data to pass to @func + * @destroy: (nullable): The function to call when @user_data is not needed anymore * + * Sets the implementation function for #hb_font_get_glyph_v_advance_func_t. * * Since: 0.9.2 **/ @@ -299,12 +642,12 @@ hb_font_funcs_set_glyph_v_advance_func (hb_font_funcs_t *ffuncs, /** * hb_font_funcs_set_glyph_h_advances_func: - * @ffuncs: font functions. - * @func: (closure user_data) (destroy destroy) (scope notified): - * @user_data: - * @destroy: - * + * @ffuncs: A font-function structure + * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign + * @user_data: Data to pass to @func + * @destroy: (nullable): The function to call when @user_data is not needed anymore * + * Sets the implementation function for #hb_font_get_glyph_h_advances_func_t. * * Since: 1.8.6 **/ @@ -315,12 +658,12 @@ hb_font_funcs_set_glyph_h_advances_func (hb_font_funcs_t *ffuncs, /** * hb_font_funcs_set_glyph_v_advances_func: - * @ffuncs: font functions. - * @func: (closure user_data) (destroy destroy) (scope notified): - * @user_data: - * @destroy: - * + * @ffuncs: A font-function structure + * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign + * @user_data: Data to pass to @func + * @destroy: (nullable): The function to call when @user_data is not needed anymore * + * Sets the implementation function for #hb_font_get_glyph_v_advances_func_t. * * Since: 1.8.6 **/ @@ -331,12 +674,12 @@ hb_font_funcs_set_glyph_v_advances_func (hb_font_funcs_t *ffuncs, /** * hb_font_funcs_set_glyph_h_origin_func: - * @ffuncs: font functions. - * @func: (closure user_data) (destroy destroy) (scope notified): - * @user_data: - * @destroy: - * + * @ffuncs: A font-function structure + * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign + * @user_data: Data to pass to @func + * @destroy: (nullable): The function to call when @user_data is not needed anymore * + * Sets the implementation function for #hb_font_get_glyph_h_origin_func_t. * * Since: 0.9.2 **/ @@ -347,12 +690,12 @@ hb_font_funcs_set_glyph_h_origin_func (hb_font_funcs_t *ffuncs, /** * hb_font_funcs_set_glyph_v_origin_func: - * @ffuncs: font functions. - * @func: (closure user_data) (destroy destroy) (scope notified): - * @user_data: - * @destroy: - * + * @ffuncs: A font-function structure + * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign + * @user_data: Data to pass to @func + * @destroy: (nullable): The function to call when @user_data is not needed anymore * + * Sets the implementation function for #hb_font_get_glyph_v_origin_func_t. * * Since: 0.9.2 **/ @@ -363,12 +706,12 @@ hb_font_funcs_set_glyph_v_origin_func (hb_font_funcs_t *ffuncs, /** * hb_font_funcs_set_glyph_h_kerning_func: - * @ffuncs: font functions. - * @func: (closure user_data) (destroy destroy) (scope notified): - * @user_data: - * @destroy: - * + * @ffuncs: A font-function structure + * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign + * @user_data: Data to pass to @func + * @destroy: (nullable): The function to call when @user_data is not needed anymore * + * Sets the implementation function for #hb_font_get_glyph_h_kerning_func_t. * * Since: 0.9.2 **/ @@ -379,12 +722,12 @@ hb_font_funcs_set_glyph_h_kerning_func (hb_font_funcs_t *ffuncs, /** * hb_font_funcs_set_glyph_extents_func: - * @ffuncs: font functions. - * @func: (closure user_data) (destroy destroy) (scope notified): - * @user_data: - * @destroy: - * + * @ffuncs: A font-function structure + * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign + * @user_data: Data to pass to @func + * @destroy: (nullable): The function to call when @user_data is not needed anymore * + * Sets the implementation function for #hb_font_get_glyph_extents_func_t. * * Since: 0.9.2 **/ @@ -395,12 +738,12 @@ hb_font_funcs_set_glyph_extents_func (hb_font_funcs_t *ffuncs, /** * hb_font_funcs_set_glyph_contour_point_func: - * @ffuncs: font functions. - * @func: (closure user_data) (destroy destroy) (scope notified): - * @user_data: - * @destroy: - * + * @ffuncs: A font-function structure + * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign + * @user_data: Data to pass to @func + * @destroy: (nullable): The function to call when @user_data is not needed anymore * + * Sets the implementation function for #hb_font_get_glyph_contour_point_func_t. * * Since: 0.9.2 **/ @@ -411,12 +754,12 @@ hb_font_funcs_set_glyph_contour_point_func (hb_font_funcs_t *ffuncs, /** * hb_font_funcs_set_glyph_name_func: - * @ffuncs: font functions. - * @func: (closure user_data) (destroy destroy) (scope notified): - * @user_data: - * @destroy: - * + * @ffuncs: A font-function structure + * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign + * @user_data: Data to pass to @func + * @destroy: (nullable): The function to call when @user_data is not needed anymore * + * Sets the implementation function for #hb_font_get_glyph_name_func_t. * * Since: 0.9.2 **/ @@ -427,12 +770,12 @@ hb_font_funcs_set_glyph_name_func (hb_font_funcs_t *ffuncs, /** * hb_font_funcs_set_glyph_from_name_func: - * @ffuncs: font functions. - * @func: (closure user_data) (destroy destroy) (scope notified): - * @user_data: - * @destroy: - * + * @ffuncs: A font-function structure + * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign + * @user_data: Data to pass to @func + * @destroy: (nullable): The function to call when @user_data is not needed anymore * + * Sets the implementation function for #hb_font_get_glyph_from_name_func_t. * * Since: 0.9.2 **/ @@ -441,6 +784,38 @@ hb_font_funcs_set_glyph_from_name_func (hb_font_funcs_t *ffuncs, hb_font_get_glyph_from_name_func_t func, void *user_data, hb_destroy_func_t destroy); +/** + * hb_font_funcs_set_draw_glyph_func: + * @ffuncs: A font-function structure + * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign + * @user_data: Data to pass to @func + * @destroy: (nullable): The function to call when @user_data is not needed anymore + * + * Sets the implementation function for #hb_font_draw_glyph_func_t. + * + * Since: 7.0.0 + **/ +HB_EXTERN void +hb_font_funcs_set_draw_glyph_func (hb_font_funcs_t *ffuncs, + hb_font_draw_glyph_func_t func, + void *user_data, hb_destroy_func_t destroy); + +/** + * hb_font_funcs_set_paint_glyph_func: + * @ffuncs: A font-function structure + * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign + * @user_data: Data to pass to @func + * @destroy: (nullable): The function to call when @user_data is no longer needed + * + * Sets the implementation function for #hb_font_paint_glyph_func_t. + * + * Since: 7.0.0 + */ +HB_EXTERN void +hb_font_funcs_set_paint_glyph_func (hb_font_funcs_t *ffuncs, + hb_font_paint_glyph_func_t func, + void *user_data, hb_destroy_func_t destroy); + /* func dispatch */ HB_EXTERN hb_bool_t @@ -521,6 +896,17 @@ hb_font_get_glyph_from_name (hb_font_t *font, const char *name, int len, /* -1 means nul-terminated */ hb_codepoint_t *glyph); +HB_EXTERN void +hb_font_draw_glyph (hb_font_t *font, + hb_codepoint_t glyph, + hb_draw_funcs_t *dfuncs, void *draw_data); + +HB_EXTERN void +hb_font_paint_glyph (hb_font_t *font, + hb_codepoint_t glyph, + hb_paint_funcs_t *pfuncs, void *paint_data, + unsigned int palette_index, + hb_color_t foreground); /* high-level funcs, with fallback */ @@ -624,7 +1010,7 @@ hb_font_set_user_data (hb_font_t *font, HB_EXTERN void * -hb_font_get_user_data (hb_font_t *font, +hb_font_get_user_data (const hb_font_t *font, hb_user_data_key_t *key); HB_EXTERN void @@ -633,6 +1019,12 @@ hb_font_make_immutable (hb_font_t *font); HB_EXTERN hb_bool_t hb_font_is_immutable (hb_font_t *font); +HB_EXTERN unsigned int +hb_font_get_serial (hb_font_t *font); + +HB_EXTERN void +hb_font_changed (hb_font_t *font); + HB_EXTERN void hb_font_set_parent (hb_font_t *font, hb_font_t *parent); @@ -695,15 +1087,40 @@ HB_EXTERN float hb_font_get_ptem (hb_font_t *font); HB_EXTERN void +hb_font_set_synthetic_bold (hb_font_t *font, + float x_embolden, float y_embolden, + hb_bool_t in_place); + +HB_EXTERN void +hb_font_get_synthetic_bold (hb_font_t *font, + float *x_embolden, float *y_embolden, + hb_bool_t *in_place); + +HB_EXTERN void +hb_font_set_synthetic_slant (hb_font_t *font, float slant); + +HB_EXTERN float +hb_font_get_synthetic_slant (hb_font_t *font); + +HB_EXTERN void hb_font_set_variations (hb_font_t *font, const hb_variation_t *variations, unsigned int variations_length); HB_EXTERN void +hb_font_set_variation (hb_font_t *font, + hb_tag_t tag, + float value); + +HB_EXTERN void hb_font_set_var_coords_design (hb_font_t *font, const float *coords, unsigned int coords_length); +HB_EXTERN const float * +hb_font_get_var_coords_design (hb_font_t *font, + unsigned int *length); + HB_EXTERN void hb_font_set_var_coords_normalized (hb_font_t *font, const int *coords, /* 2.14 normalized */ @@ -713,9 +1130,23 @@ HB_EXTERN const int * hb_font_get_var_coords_normalized (hb_font_t *font, unsigned int *length); +/** + * HB_FONT_NO_VAR_NAMED_INSTANCE: + * + * Constant signifying that a font does not have any + * named-instance index set. This is the default of + * a font. + * + * Since: 7.0.0 + */ +#define HB_FONT_NO_VAR_NAMED_INSTANCE 0xFFFFFFFF + HB_EXTERN void hb_font_set_var_named_instance (hb_font_t *font, - unsigned instance_index); + unsigned int instance_index); + +HB_EXTERN unsigned int +hb_font_get_var_named_instance (hb_font_t *font); HB_END_DECLS |