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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"
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# include "core/variant/native_ptr.h"
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# include "core/variant/variant.h"
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struct Glyph ;
struct CaretInfo ;
class TextServer : public RefCounted {
GDCLASS ( TextServer , RefCounted ) ;
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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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} ;
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enum LineBreakFlag { // LineBreakFlag can be passed in the same value as the JustificationFlag, do not use the same values.
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BREAK_NONE = 0 ,
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BREAK_MANDATORY = 1 < < 5 ,
BREAK_WORD_BOUND = 1 < < 6 ,
BREAK_GRAPHEME_BOUND = 1 < < 7 ,
BREAK_WORD_BOUND_ADAPTIVE = 1 < < 6 | 1 < < 8 ,
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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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GRAPHEME_IS_CONNECTED = 1 < < 10 , // Connected to previous grapheme.
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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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enum FontStyle {
FONT_BOLD = 1 < < 0 ,
FONT_ITALIC = 1 < < 1 ,
FONT_FIXED_WIDTH = 1 < < 2 ,
} ;
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void _draw_hex_code_box_number ( RID p_canvas , int p_size , const Vector2 & p_pos , uint8_t p_index , const Color & p_color ) const ;
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protected :
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struct TrimData {
int trim_pos = - 1 ;
int ellipsis_pos = - 1 ;
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Vector < Glyph > ellipsis_glyph_buf ;
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} ;
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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 ;
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String custom_punct ;
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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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float ascent = 0.f ; // Ascent for horizontal layout, 1/2 of width for vertical.
float descent = 0.f ; // Descent for horizontal layout, 1/2 of width for vertical.
float width = 0.f ; // Width for horizontal layout, height for vertical.
float width_trimmed = 0.f ;
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float upos = 0.f ;
float uthk = 0.f ;
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TrimData overrun_trim_data ;
bool fit_width_minimum_reached = false ;
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Vector < Glyph > glyphs ;
Vector < Glyph > glyphs_logical ;
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} ;
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Map < char32_t , char32_t > diacritics_map ;
void _diacritics_map_add ( const String & p_from , char32_t p_to ) ;
void _init_diacritics_map ( ) ;
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static void _bind_methods ( ) ;
public :
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virtual bool has_feature ( Feature p_feature ) const = 0 ;
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virtual String get_name ( ) const = 0 ;
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virtual uint32_t get_features ( ) const = 0 ;
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virtual void free ( RID p_rid ) = 0 ;
virtual bool has ( RID p_rid ) = 0 ;
virtual bool load_support_data ( const String & p_filename ) = 0 ;
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virtual String get_support_data_filename ( ) const = 0 ;
virtual String get_support_data_info ( ) const = 0 ;
virtual bool save_support_data ( const String & p_filename ) const = 0 ;
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virtual bool is_locale_right_to_left ( const String & p_locale ) const = 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 ;
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virtual void font_set_style ( RID p_font_rid , uint32_t /*FontStyle*/ p_style ) = 0 ;
virtual uint32_t /*FontStyle*/ font_get_style ( RID p_font_rid ) const = 0 ;
virtual void font_set_name ( RID p_font_rid , const String & p_name ) = 0 ;
virtual String font_get_name ( RID p_font_rid ) const = 0 ;
virtual void font_set_style_name ( RID p_font_rid , const String & p_name ) = 0 ;
virtual String font_get_style_name ( RID p_font_rid ) const = 0 ;
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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 ;
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virtual void font_set_hinting ( RID p_font_rid , Hinting p_hinting ) = 0 ;
virtual 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 , float p_oversampling ) = 0 ;
virtual float 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 , float p_ascent ) = 0 ;
virtual float 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 , float p_descent ) = 0 ;
virtual float 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 , float p_underline_position ) = 0 ;
virtual float 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 , float p_underline_thickness ) = 0 ;
virtual float 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 , float p_scale ) = 0 ;
virtual float 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 Dictionary font_get_glyph_contours ( RID p_font , int p_size , int32_t p_index ) const = 0 ;
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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 ;
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virtual float font_get_global_oversampling ( ) const = 0 ;
virtual void font_set_global_oversampling ( float p_oversampling ) = 0 ;
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virtual Vector2 get_hex_code_box_size ( int p_size , char32_t p_index ) const ;
virtual void draw_hex_code_box ( RID p_canvas , int p_size , const Vector2 & p_pos , char32_t p_index , const Color & p_color ) const ;
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/* 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 ;
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virtual void shaped_text_set_bidi_override ( RID p_shaped , const Array & p_override ) = 0 ;
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virtual void shaped_text_set_custom_punctuation ( RID p_shaped , const String & p_punct ) = 0 ;
virtual String shaped_text_get_custom_punctuation ( RID p_shaped ) const = 0 ;
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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 float shaped_text_fit_to_width ( RID p_shaped , float p_width , uint16_t /*JustificationFlag*/ p_jst_flags = JUSTIFICATION_WORD_BOUND | JUSTIFICATION_KASHIDA ) = 0 ;
virtual float shaped_text_tab_align ( RID p_shaped , const PackedFloat32Array & 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 ;
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virtual const Glyph * shaped_text_get_glyphs ( RID p_shaped ) const = 0 ;
Array _shaped_text_get_glyphs_wrapper ( RID p_shaped ) const ;
virtual const Glyph * shaped_text_sort_logical ( RID p_shaped ) = 0 ;
Array _shaped_text_sort_logical_wrapper ( RID p_shaped ) ;
virtual int shaped_text_get_glyph_count ( RID p_shaped ) const = 0 ;
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virtual Vector2i shaped_text_get_range ( RID p_shaped ) const = 0 ;
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virtual PackedInt32Array shaped_text_get_line_breaks_adv ( RID p_shaped , const PackedFloat32Array & p_width , int p_start = 0 , bool p_once = true , uint16_t /*TextBreakFlag*/ p_break_flags = BREAK_MANDATORY | BREAK_WORD_BOUND ) const ;
virtual PackedInt32Array shaped_text_get_line_breaks ( RID p_shaped , float p_width , int p_start = 0 , uint16_t /*TextBreakFlag*/ p_break_flags = BREAK_MANDATORY | BREAK_WORD_BOUND ) const ;
virtual PackedInt32Array shaped_text_get_word_breaks ( RID p_shaped , int p_grapheme_flags = GRAPHEME_IS_SPACE | GRAPHEME_IS_PUNCTUATION ) const ;
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virtual int shaped_text_get_trim_pos ( RID p_shaped ) const = 0 ;
virtual int shaped_text_get_ellipsis_pos ( RID p_shaped ) const = 0 ;
virtual const Glyph * shaped_text_get_ellipsis_glyphs ( RID p_shaped ) const = 0 ;
Array _shaped_text_get_ellipsis_glyphs_wrapper ( RID p_shaped ) const ;
virtual int shaped_text_get_ellipsis_glyph_count ( RID p_shaped ) const = 0 ;
virtual void shaped_text_overrun_trim_to_width ( RID p_shaped , float p_width , uint16_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 float shaped_text_get_ascent ( RID p_shaped ) const = 0 ;
virtual float shaped_text_get_descent ( RID p_shaped ) const = 0 ;
virtual float shaped_text_get_width ( RID p_shaped ) const = 0 ;
virtual float shaped_text_get_underline_position ( RID p_shaped ) const = 0 ;
virtual float shaped_text_get_underline_thickness ( RID p_shaped ) const = 0 ;
virtual Direction shaped_text_get_dominant_direction_in_range ( RID p_shaped , int p_start , int p_end ) const ;
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virtual CaretInfo shaped_text_get_carets ( RID p_shaped , int p_position ) const ;
Dictionary _shaped_text_get_carets_wrapper ( RID p_shaped , int p_position ) const ;
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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 , float p_coords ) const ; // Return grapheme index.
virtual int shaped_text_hit_test_position ( RID p_shaped , float p_coords ) const ; // Return caret/selection position.
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virtual int shaped_text_next_grapheme_pos ( RID p_shaped , int p_pos ) const ;
virtual int shaped_text_prev_grapheme_pos ( RID p_shaped , int p_pos ) const ;
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// 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 , float p_clip_l = - 1.f , float 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 , float p_clip_l = - 1.f , float 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 " % " ; } ;
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virtual String strip_diacritics ( const String & p_string ) const ;
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TextServer ( ) ;
~ TextServer ( ) ;
} ;
/*************************************************************************/
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struct Glyph {
int start = - 1 ; // Start offset in the source string.
int end = - 1 ; // End offset in the source string.
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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.
uint16_t flags = 0 ; // Grapheme flags (valid, rtl, virtual), set in the first glyph only.
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float x_off = 0.f ; // Offset from the origin of the glyph on baseline.
float y_off = 0.f ;
float 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;
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 ;
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bool operator < ( const Glyph & p_a ) const ;
bool operator > ( const Glyph & p_a ) const ;
} ;
struct CaretInfo {
Rect2 l_caret ;
Rect2 t_caret ;
TextServer : : Direction l_dir ;
TextServer : : Direction t_dir ;
} ;
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 & TextServer : : GRAPHEME_IS_VIRTUAL ) = = TextServer : : GRAPHEME_IS_VIRTUAL ) {
return false ;
} else {
return true ;
}
}
return l . count > r . count ; // Sort first glyph with count & flags, order of the rest are irrelevant.
} else {
return l . start < r . start ;
}
}
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} ;
/*************************************************************************/
class TextServerManager : public Object {
GDCLASS ( TextServerManager , Object ) ;
protected :
static void _bind_methods ( ) ;
private :
static TextServerManager * singleton ;
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Ref < TextServer > primary_interface ;
Vector < Ref < TextServer > > interfaces ;
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public :
_FORCE_INLINE_ static TextServerManager * get_singleton ( ) {
return singleton ;
}
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void add_interface ( const Ref < TextServer > & p_interface ) ;
void remove_interface ( const Ref < TextServer > & p_interface ) ;
int get_interface_count ( ) const ;
Ref < TextServer > get_interface ( int p_index ) const ;
Ref < TextServer > find_interface ( const String & p_name ) const ;
Array get_interfaces ( ) const ;
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_FORCE_INLINE_ Ref < TextServer > get_primary_interface ( ) const {
return primary_interface ;
}
void set_primary_interface ( const Ref < TextServer > & p_primary_interface ) ;
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TextServerManager ( ) ;
~ TextServerManager ( ) ;
} ;
/*************************************************************************/
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# define TS TextServerManager::get_singleton()->get_primary_interface()
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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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VARIANT_ENUM_CAST ( TextServer : : FontStyle ) ;
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GDVIRTUAL_NATIVE_PTR ( Glyph ) ;
GDVIRTUAL_NATIVE_PTR ( Glyph * ) ;
GDVIRTUAL_NATIVE_PTR ( CaretInfo ) ;
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# endif // TEXT_SERVER_H
