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/*************************************************************************/
/* text_server.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
# ifndef TEXT_SERVER_H
# define TEXT_SERVER_H
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# include "core/object/ref_counted.h"
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# include "core/os/os.h"
# include "core/templates/rid.h"
# include "core/variant/variant.h"
# include "scene/resources/texture.h"
class CanvasTexture ;
class TextServer : public Object {
GDCLASS ( TextServer , Object ) ;
public :
enum Direction {
DIRECTION_AUTO ,
DIRECTION_LTR ,
DIRECTION_RTL
} ;
enum Orientation {
ORIENTATION_HORIZONTAL ,
ORIENTATION_VERTICAL
} ;
enum JustificationFlag {
JUSTIFICATION_NONE = 0 ,
JUSTIFICATION_KASHIDA = 1 < < 0 ,
JUSTIFICATION_WORD_BOUND = 1 < < 1 ,
JUSTIFICATION_TRIM_EDGE_SPACES = 1 < < 2 ,
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JUSTIFICATION_AFTER_LAST_TAB = 1 < < 3 ,
JUSTIFICATION_CONSTRAIN_ELLIPSIS = 1 < < 4 ,
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} ;
enum LineBreakFlag {
BREAK_NONE = 0 ,
BREAK_MANDATORY = 1 < < 4 ,
BREAK_WORD_BOUND = 1 < < 5 ,
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BREAK_GRAPHEME_BOUND = 1 < < 6 ,
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BREAK_WORD_BOUND_ADAPTIVE = 1 < < 5 | 1 < < 7 ,
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} ;
enum TextOverrunFlag {
OVERRUN_NO_TRIMMING = 0 ,
OVERRUN_TRIM = 1 < < 0 ,
OVERRUN_TRIM_WORD_ONLY = 1 < < 1 ,
OVERRUN_ADD_ELLIPSIS = 1 < < 2 ,
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OVERRUN_ENFORCE_ELLIPSIS = 1 < < 3 ,
OVERRUN_JUSTIFICATION_AWARE = 1 < < 4 ,
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} ;
enum GraphemeFlag {
GRAPHEME_IS_VALID = 1 < < 0 , // Glyph is valid.
GRAPHEME_IS_RTL = 1 < < 1 , // Glyph is right-to-left.
GRAPHEME_IS_VIRTUAL = 1 < < 2 , // Glyph is not part of source string (added by fit_to_width function, do not affect caret movement).
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GRAPHEME_IS_SPACE = 1 < < 3 , // Is whitespace (for justification and word breaks).
GRAPHEME_IS_BREAK_HARD = 1 < < 4 , // Is line break (mandatory break, e.g. "\n").
GRAPHEME_IS_BREAK_SOFT = 1 < < 5 , // Is line break (optional break, e.g. space).
GRAPHEME_IS_TAB = 1 < < 6 , // Is tab or vertical tab.
GRAPHEME_IS_ELONGATION = 1 < < 7 , // Elongation (e.g. kashida), glyph can be duplicated or truncated to fit line to width.
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GRAPHEME_IS_PUNCTUATION = 1 < < 8 , // Punctuation, except underscore (can be used as word break, but not line break or justifiction).
GRAPHEME_IS_UNDERSCORE = 1 < < 9 , // Underscore (can be used as word break).
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} ;
enum Hinting {
HINTING_NONE ,
HINTING_LIGHT ,
HINTING_NORMAL
} ;
enum Feature {
FEATURE_BIDI_LAYOUT = 1 < < 0 ,
FEATURE_VERTICAL_LAYOUT = 1 < < 1 ,
FEATURE_SHAPING = 1 < < 2 ,
FEATURE_KASHIDA_JUSTIFICATION = 1 < < 3 ,
FEATURE_BREAK_ITERATORS = 1 < < 4 ,
FEATURE_FONT_SYSTEM = 1 < < 5 ,
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FEATURE_FONT_VARIABLE = 1 < < 6 ,
FEATURE_USE_SUPPORT_DATA = 1 < < 7
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} ;
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enum ContourPointTag {
CONTOUR_CURVE_TAG_ON = 0x01 ,
CONTOUR_CURVE_TAG_OFF_CONIC = 0x00 ,
CONTOUR_CURVE_TAG_OFF_CUBIC = 0x02
} ;
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enum SpacingType {
SPACING_GLYPH ,
SPACING_SPACE ,
SPACING_TOP ,
SPACING_BOTTOM ,
} ;
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struct Glyph {
int start = - 1 ; // Start offset in the source string.
int end = - 1 ; // End offset in the source string.
uint8_t count = 0 ; // Number of glyphs in the grapheme, set in the first glyph only.
uint8_t repeat = 1 ; // Draw multiple times in the row.
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uint16_t flags = 0 ; // Grapheme flags (valid, rtl, virtual), set in the first glyph only.
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real_t x_off = 0.f ; // Offset from the origin of the glyph on baseline.
real_t y_off = 0.f ;
real_t advance = 0.f ; // Advance to the next glyph along baseline(x for horizontal layout, y for vertical).
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RID font_rid ; // Font resource.
int font_size = 0 ; // Font size;
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int32_t index = 0 ; // Glyph index (font specific) or UTF-32 codepoint (for the invalid glyphs).
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bool operator = = ( const Glyph & p_a ) const ;
bool operator ! = ( const Glyph & p_a ) const ;
bool operator < ( const Glyph & p_a ) const ;
bool operator > ( const Glyph & p_a ) const ;
} ;
struct GlyphCompare { // For line breaking reordering.
_FORCE_INLINE_ bool operator ( ) ( const Glyph & l , const Glyph & r ) const {
if ( l . start = = r . start ) {
if ( l . count = = r . count ) {
if ( ( l . flags & GRAPHEME_IS_VIRTUAL ) = = GRAPHEME_IS_VIRTUAL ) {
return false ;
} else {
return true ;
}
}
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return l . count > r . count ; // Sort first glyph with count & flags, order of the rest are irrelevant.
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} else {
return l . start < r . start ;
}
}
} ;
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struct TrimData {
int trim_pos = - 1 ;
int ellipsis_pos = - 1 ;
Vector < TextServer : : Glyph > ellipsis_glyph_buf ;
} ;
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struct ShapedTextData {
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Mutex mutex ;
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/* Source data */
RID parent ; // Substring parent ShapedTextData.
int start = 0 ; // Substring start offset in the parent string.
int end = 0 ; // Substring end offset in the parent string.
String text ;
TextServer : : Direction direction = DIRECTION_LTR ; // Desired text direction.
TextServer : : Orientation orientation = ORIENTATION_HORIZONTAL ;
struct Span {
int start = - 1 ;
int end = - 1 ;
Vector < RID > fonts ;
int font_size = 0 ;
Variant embedded_key ;
String language ;
Dictionary features ;
} ;
Vector < Span > spans ;
struct EmbeddedObject {
int pos = 0 ;
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InlineAlign inline_align = INLINE_ALIGN_CENTER ;
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Rect2 rect ;
} ;
Map < Variant , EmbeddedObject > objects ;
/* Shaped data */
TextServer : : Direction para_direction = DIRECTION_LTR ; // Detected text direction.
bool valid = false ; // String is shaped.
bool line_breaks_valid = false ; // Line and word break flags are populated (and virtual zero width spaces inserted).
bool justification_ops_valid = false ; // Virtual elongation glyphs are added to the string.
bool sort_valid = false ;
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bool text_trimmed = false ;
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bool preserve_invalid = true ; // Draw hex code box instead of missing characters.
bool preserve_control = false ; // Draw control characters.
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real_t ascent = 0.f ; // Ascent for horizontal layout, 1/2 of width for vertical.
real_t descent = 0.f ; // Descent for horizontal layout, 1/2 of width for vertical.
real_t width = 0.f ; // Width for horizontal layout, height for vertical.
real_t width_trimmed = 0.f ;
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real_t upos = 0.f ;
real_t uthk = 0.f ;
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TrimData overrun_trim_data ;
bool fit_width_minimum_reached = false ;
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Vector < TextServer : : Glyph > glyphs ;
Vector < TextServer : : Glyph > glyphs_logical ;
} ;
protected :
static void _bind_methods ( ) ;
static Vector3 hex_code_box_font_size [ 2 ] ;
static Ref < CanvasTexture > hex_code_box_font_tex [ 2 ] ;
public :
static void initialize_hex_code_box_fonts ( ) ;
static void finish_hex_code_box_fonts ( ) ;
virtual bool has_feature ( Feature p_feature ) = 0 ;
virtual String get_name ( ) const = 0 ;
virtual void free ( RID p_rid ) = 0 ;
virtual bool has ( RID p_rid ) = 0 ;
virtual bool load_support_data ( const String & p_filename ) = 0 ;
# ifdef TOOLS_ENABLED
virtual String get_support_data_filename ( ) = 0 ;
virtual String get_support_data_info ( ) = 0 ;
virtual bool save_support_data ( const String & p_filename ) = 0 ;
# endif
virtual bool is_locale_right_to_left ( const String & p_locale ) = 0 ;
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virtual int32_t name_to_tag ( const String & p_name ) const { return 0 ; } ;
virtual String tag_to_name ( int32_t p_tag ) const { return " " ; } ;
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/* Font interface */
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virtual RID create_font ( ) = 0 ;
virtual void font_set_data ( RID p_font_rid , const PackedByteArray & p_data ) = 0 ;
virtual void font_set_data_ptr ( RID p_font_rid , const uint8_t * p_data_ptr , size_t p_data_size ) = 0 ;
virtual void font_set_antialiased ( RID p_font_rid , bool p_antialiased ) = 0 ;
virtual bool font_is_antialiased ( RID p_font_rid ) const = 0 ;
virtual void font_set_multichannel_signed_distance_field ( RID p_font_rid , bool p_msdf ) = 0 ;
virtual bool font_is_multichannel_signed_distance_field ( RID p_font_rid ) const = 0 ;
virtual void font_set_msdf_pixel_range ( RID p_font_rid , int p_msdf_pixel_range ) = 0 ;
virtual int font_get_msdf_pixel_range ( RID p_font_rid ) const = 0 ;
virtual void font_set_msdf_size ( RID p_font_rid , int p_msdf_size ) = 0 ;
virtual int font_get_msdf_size ( RID p_font_rid ) const = 0 ;
virtual void font_set_fixed_size ( RID p_font_rid , int p_fixed_size ) = 0 ;
virtual int font_get_fixed_size ( RID p_font_rid ) const = 0 ;
virtual void font_set_force_autohinter ( RID p_font_rid , bool p_force_autohinter ) = 0 ;
virtual bool font_is_force_autohinter ( RID p_font_rid ) const = 0 ;
virtual void font_set_hinting ( RID p_font_rid , TextServer : : Hinting p_hinting ) = 0 ;
virtual TextServer : : Hinting font_get_hinting ( RID p_font_rid ) const = 0 ;
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virtual void font_set_variation_coordinates ( RID p_font_rid , const Dictionary & p_variation_coordinates ) = 0 ;
virtual Dictionary font_get_variation_coordinates ( RID p_font_rid ) const = 0 ;
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virtual void font_set_oversampling ( RID p_font_rid , real_t p_oversampling ) = 0 ;
virtual real_t font_get_oversampling ( RID p_font_rid ) const = 0 ;
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virtual Array font_get_size_cache_list ( RID p_font_rid ) const = 0 ;
virtual void font_clear_size_cache ( RID p_font_rid ) = 0 ;
virtual void font_remove_size_cache ( RID p_font_rid , const Vector2i & p_size ) = 0 ;
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virtual void font_set_ascent ( RID p_font_rid , int p_size , real_t p_ascent ) = 0 ;
virtual real_t font_get_ascent ( RID p_font_rid , int p_size ) const = 0 ;
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virtual void font_set_descent ( RID p_font_rid , int p_size , real_t p_descent ) = 0 ;
virtual real_t font_get_descent ( RID p_font_rid , int p_size ) const = 0 ;
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virtual void font_set_underline_position ( RID p_font_rid , int p_size , real_t p_underline_position ) = 0 ;
virtual real_t font_get_underline_position ( RID p_font_rid , int p_size ) const = 0 ;
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virtual void font_set_underline_thickness ( RID p_font_rid , int p_size , real_t p_underline_thickness ) = 0 ;
virtual real_t font_get_underline_thickness ( RID p_font_rid , int p_size ) const = 0 ;
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virtual void font_set_scale ( RID p_font_rid , int p_size , real_t p_scale ) = 0 ;
virtual real_t font_get_scale ( RID p_font_rid , int p_size ) const = 0 ;
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virtual void font_set_spacing ( RID p_font_rid , int p_size , SpacingType p_spacing , int p_value ) = 0 ;
virtual int font_get_spacing ( RID p_font_rid , int p_size , SpacingType p_spacing ) const = 0 ;
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virtual int font_get_texture_count ( RID p_font_rid , const Vector2i & p_size ) const = 0 ;
virtual void font_clear_textures ( RID p_font_rid , const Vector2i & p_size ) = 0 ;
virtual void font_remove_texture ( RID p_font_rid , const Vector2i & p_size , int p_texture_index ) = 0 ;
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virtual void font_set_texture_image ( RID p_font_rid , const Vector2i & p_size , int p_texture_index , const Ref < Image > & p_image ) = 0 ;
virtual Ref < Image > font_get_texture_image ( RID p_font_rid , const Vector2i & p_size , int p_texture_index ) const = 0 ;
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virtual void font_set_texture_offsets ( RID p_font_rid , const Vector2i & p_size , int p_texture_index , const PackedInt32Array & p_offset ) = 0 ;
virtual PackedInt32Array font_get_texture_offsets ( RID p_font_rid , const Vector2i & p_size , int p_texture_index ) const = 0 ;
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virtual Array font_get_glyph_list ( RID p_font_rid , const Vector2i & p_size ) const = 0 ;
virtual void font_clear_glyphs ( RID p_font_rid , const Vector2i & p_size ) = 0 ;
virtual void font_remove_glyph ( RID p_font_rid , const Vector2i & p_size , int32_t p_glyph ) = 0 ;
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virtual Vector2 font_get_glyph_advance ( RID p_font_rid , int p_size , int32_t p_glyph ) const = 0 ;
virtual void font_set_glyph_advance ( RID p_font_rid , int p_size , int32_t p_glyph , const Vector2 & p_advance ) = 0 ;
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virtual Vector2 font_get_glyph_offset ( RID p_font_rid , const Vector2i & p_size , int32_t p_glyph ) const = 0 ;
virtual void font_set_glyph_offset ( RID p_font_rid , const Vector2i & p_size , int32_t p_glyph , const Vector2 & p_offset ) = 0 ;
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virtual Vector2 font_get_glyph_size ( RID p_font_rid , const Vector2i & p_size , int32_t p_glyph ) const = 0 ;
virtual void font_set_glyph_size ( RID p_font_rid , const Vector2i & p_size , int32_t p_glyph , const Vector2 & p_gl_size ) = 0 ;
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virtual Rect2 font_get_glyph_uv_rect ( RID p_font_rid , const Vector2i & p_size , int32_t p_glyph ) const = 0 ;
virtual void font_set_glyph_uv_rect ( RID p_font_rid , const Vector2i & p_size , int32_t p_glyph , const Rect2 & p_uv_rect ) = 0 ;
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virtual int font_get_glyph_texture_idx ( RID p_font_rid , const Vector2i & p_size , int32_t p_glyph ) const = 0 ;
virtual void font_set_glyph_texture_idx ( RID p_font_rid , const Vector2i & p_size , int32_t p_glyph , int p_texture_idx ) = 0 ;
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virtual bool font_get_glyph_contours ( RID p_font , int p_size , int32_t p_index , Vector < Vector3 > & r_points , Vector < int32_t > & r_contours , bool & r_orientation ) const = 0 ;
virtual Array font_get_kerning_list ( RID p_font_rid , int p_size ) const = 0 ;
virtual void font_clear_kerning_map ( RID p_font_rid , int p_size ) = 0 ;
virtual void font_remove_kerning ( RID p_font_rid , int p_size , const Vector2i & p_glyph_pair ) = 0 ;
virtual void font_set_kerning ( RID p_font_rid , int p_size , const Vector2i & p_glyph_pair , const Vector2 & p_kerning ) = 0 ;
virtual Vector2 font_get_kerning ( RID p_font_rid , int p_size , const Vector2i & p_glyph_pair ) const = 0 ;
virtual int32_t font_get_glyph_index ( RID p_font_rid , int p_size , char32_t p_char , char32_t p_variation_selector ) const = 0 ;
virtual bool font_has_char ( RID p_font_rid , char32_t p_char ) const = 0 ;
virtual String font_get_supported_chars ( RID p_font_rid ) const = 0 ;
virtual void font_render_range ( RID p_font , const Vector2i & p_size , char32_t p_start , char32_t p_end ) = 0 ;
virtual void font_render_glyph ( RID p_font_rid , const Vector2i & p_size , int32_t p_index ) = 0 ;
virtual void font_draw_glyph ( RID p_font , RID p_canvas , int p_size , const Vector2 & p_pos , int32_t p_index , const Color & p_color = Color ( 1 , 1 , 1 ) ) const = 0 ;
virtual void font_draw_glyph_outline ( RID p_font , RID p_canvas , int p_size , int p_outline_size , const Vector2 & p_pos , int32_t p_index , const Color & p_color = Color ( 1 , 1 , 1 ) ) const = 0 ;
virtual bool font_is_language_supported ( RID p_font_rid , const String & p_language ) const = 0 ;
virtual void font_set_language_support_override ( RID p_font_rid , const String & p_language , bool p_supported ) = 0 ;
virtual bool font_get_language_support_override ( RID p_font_rid , const String & p_language ) = 0 ;
virtual void font_remove_language_support_override ( RID p_font_rid , const String & p_language ) = 0 ;
virtual Vector < String > font_get_language_support_overrides ( RID p_font_rid ) = 0 ;
virtual bool font_is_script_supported ( RID p_font_rid , const String & p_script ) const = 0 ;
virtual void font_set_script_support_override ( RID p_font_rid , const String & p_script , bool p_supported ) = 0 ;
virtual bool font_get_script_support_override ( RID p_font_rid , const String & p_script ) = 0 ;
virtual void font_remove_script_support_override ( RID p_font_rid , const String & p_script ) = 0 ;
virtual Vector < String > font_get_script_support_overrides ( RID p_font_rid ) = 0 ;
virtual Dictionary font_supported_feature_list ( RID p_font_rid ) const = 0 ;
virtual Dictionary font_supported_variation_list ( RID p_font_rid ) const = 0 ;
virtual real_t font_get_global_oversampling ( ) const = 0 ;
virtual void font_set_global_oversampling ( real_t p_oversampling ) = 0 ;
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Vector2 get_hex_code_box_size ( int p_size , char32_t p_index ) const ;
void draw_hex_code_box ( RID p_canvas , int p_size , const Vector2 & p_pos , char32_t p_index , const Color & p_color ) const ;
/* Shaped text buffer interface */
virtual RID create_shaped_text ( Direction p_direction = DIRECTION_AUTO , Orientation p_orientation = ORIENTATION_HORIZONTAL ) = 0 ;
virtual void shaped_text_clear ( RID p_shaped ) = 0 ;
virtual void shaped_text_set_direction ( RID p_shaped , Direction p_direction = DIRECTION_AUTO ) = 0 ;
virtual Direction shaped_text_get_direction ( RID p_shaped ) const = 0 ;
virtual void shaped_text_set_bidi_override ( RID p_shaped , const Vector < Vector2i > & p_override ) = 0 ;
virtual void shaped_text_set_orientation ( RID p_shaped , Orientation p_orientation = ORIENTATION_HORIZONTAL ) = 0 ;
virtual Orientation shaped_text_get_orientation ( RID p_shaped ) const = 0 ;
virtual void shaped_text_set_preserve_invalid ( RID p_shaped , bool p_enabled ) = 0 ;
virtual bool shaped_text_get_preserve_invalid ( RID p_shaped ) const = 0 ;
virtual void shaped_text_set_preserve_control ( RID p_shaped , bool p_enabled ) = 0 ;
virtual bool shaped_text_get_preserve_control ( RID p_shaped ) const = 0 ;
virtual bool shaped_text_add_string ( RID p_shaped , const String & p_text , const Vector < RID > & p_fonts , int p_size , const Dictionary & p_opentype_features = Dictionary ( ) , const String & p_language = " " ) = 0 ;
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virtual bool shaped_text_add_object ( RID p_shaped , Variant p_key , const Size2 & p_size , InlineAlign p_inline_align = INLINE_ALIGN_CENTER , int p_length = 1 ) = 0 ;
virtual bool shaped_text_resize_object ( RID p_shaped , Variant p_key , const Size2 & p_size , InlineAlign p_inline_align = INLINE_ALIGN_CENTER ) = 0 ;
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virtual RID shaped_text_substr ( RID p_shaped , int p_start , int p_length ) const = 0 ; // Copy shaped substring (e.g. line break) without reshaping, but correctly reordered, preservers range.
virtual RID shaped_text_get_parent ( RID p_shaped ) const = 0 ;
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virtual real_t shaped_text_fit_to_width ( RID p_shaped , real_t p_width , uint8_t /*JustificationFlag*/ p_jst_flags = JUSTIFICATION_WORD_BOUND | JUSTIFICATION_KASHIDA ) = 0 ;
virtual real_t shaped_text_tab_align ( RID p_shaped , const Vector < real_t > & p_tab_stops ) = 0 ;
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virtual bool shaped_text_shape ( RID p_shaped ) = 0 ;
virtual bool shaped_text_update_breaks ( RID p_shaped ) = 0 ;
virtual bool shaped_text_update_justification_ops ( RID p_shaped ) = 0 ;
virtual bool shaped_text_is_ready ( RID p_shaped ) const = 0 ;
virtual Vector < Glyph > shaped_text_get_glyphs ( RID p_shaped ) const = 0 ;
virtual Vector2i shaped_text_get_range ( RID p_shaped ) const = 0 ;
virtual Vector < Glyph > shaped_text_sort_logical ( RID p_shaped ) = 0 ;
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virtual Vector < Vector2i > shaped_text_get_line_breaks_adv ( RID p_shaped , const Vector < real_t > & p_width , int p_start = 0 , bool p_once = true , uint8_t /*TextBreakFlag*/ p_break_flags = BREAK_MANDATORY | BREAK_WORD_BOUND ) const ;
virtual Vector < Vector2i > shaped_text_get_line_breaks ( RID p_shaped , real_t p_width , int p_start = 0 , uint8_t /*TextBreakFlag*/ p_break_flags = BREAK_MANDATORY | BREAK_WORD_BOUND ) const ;
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virtual Vector < Vector2i > shaped_text_get_word_breaks ( RID p_shaped , int p_grapheme_flags = GRAPHEME_IS_SPACE | GRAPHEME_IS_PUNCTUATION ) const ;
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virtual TrimData shaped_text_get_trim_data ( RID p_shaped ) const ;
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virtual void shaped_text_overrun_trim_to_width ( RID p_shaped , real_t p_width , uint8_t p_trim_flags ) = 0 ;
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virtual Array shaped_text_get_objects ( RID p_shaped ) const = 0 ;
virtual Rect2 shaped_text_get_object_rect ( RID p_shaped , Variant p_key ) const = 0 ;
virtual Size2 shaped_text_get_size ( RID p_shaped ) const = 0 ;
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virtual real_t shaped_text_get_ascent ( RID p_shaped ) const = 0 ;
virtual real_t shaped_text_get_descent ( RID p_shaped ) const = 0 ;
virtual real_t shaped_text_get_width ( RID p_shaped ) const = 0 ;
virtual real_t shaped_text_get_underline_position ( RID p_shaped ) const = 0 ;
virtual real_t shaped_text_get_underline_thickness ( RID p_shaped ) const = 0 ;
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virtual Direction shaped_text_get_dominant_direciton_in_range ( RID p_shaped , int p_start , int p_end ) const ;
virtual void shaped_text_get_carets ( RID p_shaped , int p_position , Rect2 & p_leading_caret , Direction & p_leading_dir , Rect2 & p_trailing_caret , Direction & p_trailing_dir ) const ;
virtual Vector < Vector2 > shaped_text_get_selection ( RID p_shaped , int p_start , int p_end ) const ;
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virtual int shaped_text_hit_test_grapheme ( RID p_shaped , real_t p_coords ) const ; // Return grapheme index.
virtual int shaped_text_hit_test_position ( RID p_shaped , real_t p_coords ) const ; // Return caret/selection position.
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virtual int shaped_text_next_grapheme_pos ( RID p_shaped , int p_pos ) ;
virtual int shaped_text_prev_grapheme_pos ( RID p_shaped , int p_pos ) ;
// The pen position is always placed on the baseline and moveing left to right.
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virtual void shaped_text_draw ( RID p_shaped , RID p_canvas , const Vector2 & p_pos , real_t p_clip_l = - 1.f , real_t p_clip_r = - 1.f , const Color & p_color = Color ( 1 , 1 , 1 ) ) const ;
virtual void shaped_text_draw_outline ( RID p_shaped , RID p_canvas , const Vector2 & p_pos , real_t p_clip_l = - 1.f , real_t p_clip_r = - 1.f , int p_outline_size = 1 , const Color & p_color = Color ( 1 , 1 , 1 ) ) const ;
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// Number conversion.
virtual String format_number ( const String & p_string , const String & p_language = " " ) const { return p_string ; } ;
virtual String parse_number ( const String & p_string , const String & p_language = " " ) const { return p_string ; } ;
virtual String percent_sign ( const String & p_language = " " ) const { return " % " ; } ;
/* GDScript wrappers */
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RID _create_font_memory ( const PackedByteArray & p_data , int p_base_size = 16 ) ;
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Dictionary _font_get_glyph_contours ( RID p_font , int p_size , int32_t p_index ) const ;
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Array _shaped_text_get_glyphs ( RID p_shaped ) const ;
Dictionary _shaped_text_get_carets ( RID p_shaped , int p_position ) const ;
void _shaped_text_set_bidi_override ( RID p_shaped , const Array & p_override ) ;
Array _shaped_text_get_line_breaks_adv ( RID p_shaped , const PackedFloat32Array & p_width , int p_start , bool p_once , uint8_t p_break_flags ) const ;
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Array _shaped_text_get_line_breaks ( RID p_shaped , real_t p_width , int p_start , uint8_t p_break_flags ) const ;
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Array _shaped_text_get_word_breaks ( RID p_shaped ) const ;
Array _shaped_text_get_selection ( RID p_shaped , int p_start , int p_end ) const ;
TextServer ( ) ;
~ TextServer ( ) ;
} ;
/*************************************************************************/
class TextServerManager : public Object {
GDCLASS ( TextServerManager , Object ) ;
public :
typedef TextServer * ( * CreateFunction ) ( Error & r_error , void * p_user_data ) ;
protected :
static void _bind_methods ( ) ;
private :
static TextServerManager * singleton ;
static TextServer * server ;
enum {
MAX_SERVERS = 64
} ;
struct TextServerCreate {
String name ;
CreateFunction create_function = nullptr ;
uint32_t features = 0 ;
TextServer * instance = nullptr ;
void * user_data = nullptr ;
} ;
static TextServerCreate server_create_functions [ MAX_SERVERS ] ;
static int server_create_count ;
public :
_FORCE_INLINE_ static TextServerManager * get_singleton ( ) {
return singleton ;
}
static void register_create_function ( const String & p_name , uint32_t p_features , CreateFunction p_function , void * p_user_data ) ;
static int get_interface_count ( ) ;
static String get_interface_name ( int p_index ) ;
static uint32_t get_interface_features ( int p_index ) ;
static TextServer * initialize ( int p_index , Error & r_error ) ;
static TextServer * get_primary_interface ( ) ;
/* GDScript wrappers */
int _get_interface_count ( ) const ;
String _get_interface_name ( int p_index ) const ;
uint32_t _get_interface_features ( int p_index ) const ;
TextServer * _get_interface ( int p_index ) const ;
Array _get_interfaces ( ) const ;
TextServer * _find_interface ( const String & p_name ) const ;
bool _set_primary_interface ( int p_index ) ;
TextServer * _get_primary_interface ( ) const ;
TextServerManager ( ) ;
~ TextServerManager ( ) ;
} ;
/*************************************************************************/
# define TS TextServerManager::get_primary_interface()
VARIANT_ENUM_CAST ( TextServer : : Direction ) ;
VARIANT_ENUM_CAST ( TextServer : : Orientation ) ;
VARIANT_ENUM_CAST ( TextServer : : JustificationFlag ) ;
VARIANT_ENUM_CAST ( TextServer : : LineBreakFlag ) ;
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VARIANT_ENUM_CAST ( TextServer : : TextOverrunFlag ) ;
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VARIANT_ENUM_CAST ( TextServer : : GraphemeFlag ) ;
VARIANT_ENUM_CAST ( TextServer : : Hinting ) ;
VARIANT_ENUM_CAST ( TextServer : : Feature ) ;
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VARIANT_ENUM_CAST ( TextServer : : ContourPointTag ) ;
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VARIANT_ENUM_CAST ( TextServer : : SpacingType ) ;
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# endif // TEXT_SERVER_H
