565 lines
25 KiB
C++
565 lines
25 KiB
C++
/*************************************************************************/
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/* text_server.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef TEXT_SERVER_H
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#define TEXT_SERVER_H
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#include "core/object/ref_counted.h"
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#include "core/os/os.h"
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#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;
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struct CaretInfo;
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class TextServer : public RefCounted {
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GDCLASS(TextServer, RefCounted);
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public:
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enum Direction {
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DIRECTION_AUTO,
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DIRECTION_LTR,
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DIRECTION_RTL
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};
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enum Orientation {
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ORIENTATION_HORIZONTAL,
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ORIENTATION_VERTICAL
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};
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enum JustificationFlag {
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JUSTIFICATION_NONE = 0,
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JUSTIFICATION_KASHIDA = 1 << 0,
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JUSTIFICATION_WORD_BOUND = 1 << 1,
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JUSTIFICATION_TRIM_EDGE_SPACES = 1 << 2,
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JUSTIFICATION_AFTER_LAST_TAB = 1 << 3,
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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,
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BREAK_WORD_BOUND = 1 << 6,
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BREAK_GRAPHEME_BOUND = 1 << 7,
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BREAK_WORD_BOUND_ADAPTIVE = 1 << 6 | 1 << 8,
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};
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enum TextOverrunFlag {
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OVERRUN_NO_TRIMMING = 0,
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OVERRUN_TRIM = 1 << 0,
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OVERRUN_TRIM_WORD_ONLY = 1 << 1,
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OVERRUN_ADD_ELLIPSIS = 1 << 2,
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OVERRUN_ENFORCE_ELLIPSIS = 1 << 3,
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OVERRUN_JUSTIFICATION_AWARE = 1 << 4,
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};
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enum GraphemeFlag {
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GRAPHEME_IS_VALID = 1 << 0, // Glyph is valid.
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GRAPHEME_IS_RTL = 1 << 1, // Glyph is right-to-left.
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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).
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GRAPHEME_IS_BREAK_HARD = 1 << 4, // Is line break (mandatory break, e.g. "\n").
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GRAPHEME_IS_BREAK_SOFT = 1 << 5, // Is line break (optional break, e.g. space).
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GRAPHEME_IS_TAB = 1 << 6, // Is tab or vertical tab.
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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).
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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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};
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enum Hinting {
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HINTING_NONE,
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HINTING_LIGHT,
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HINTING_NORMAL
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};
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enum Feature {
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FEATURE_BIDI_LAYOUT = 1 << 0,
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FEATURE_VERTICAL_LAYOUT = 1 << 1,
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FEATURE_SHAPING = 1 << 2,
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FEATURE_KASHIDA_JUSTIFICATION = 1 << 3,
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FEATURE_BREAK_ITERATORS = 1 << 4,
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FEATURE_FONT_SYSTEM = 1 << 5,
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FEATURE_FONT_VARIABLE = 1 << 6,
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FEATURE_USE_SUPPORT_DATA = 1 << 7
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};
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enum ContourPointTag {
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CONTOUR_CURVE_TAG_ON = 0x01,
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CONTOUR_CURVE_TAG_OFF_CONIC = 0x00,
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CONTOUR_CURVE_TAG_OFF_CUBIC = 0x02
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};
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enum SpacingType {
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SPACING_GLYPH,
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SPACING_SPACE,
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SPACING_TOP,
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SPACING_BOTTOM,
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};
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enum FontStyle {
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FONT_BOLD = 1 << 0,
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FONT_ITALIC = 1 << 1,
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FONT_FIXED_WIDTH = 1 << 2,
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};
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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 {
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int trim_pos = -1;
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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 */
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RID parent; // Substring parent ShapedTextData.
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int start = 0; // Substring start offset in the parent string.
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int end = 0; // Substring end offset in the parent string.
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String text;
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String custom_punct;
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TextServer::Direction direction = DIRECTION_LTR; // Desired text direction.
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TextServer::Orientation orientation = ORIENTATION_HORIZONTAL;
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struct Span {
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int start = -1;
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int end = -1;
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Vector<RID> fonts;
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int font_size = 0;
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Variant embedded_key;
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String language;
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Dictionary features;
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};
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Vector<Span> spans;
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struct EmbeddedObject {
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int pos = 0;
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InlineAlignment inline_align = INLINE_ALIGNMENT_CENTER;
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Rect2 rect;
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};
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Map<Variant, EmbeddedObject> objects;
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/* Shaped data */
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TextServer::Direction para_direction = DIRECTION_LTR; // Detected text direction.
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bool valid = false; // String is shaped.
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bool line_breaks_valid = false; // Line and word break flags are populated (and virtual zero width spaces inserted).
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bool justification_ops_valid = false; // Virtual elongation glyphs are added to the string.
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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.
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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.
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float descent = 0.f; // Descent for horizontal layout, 1/2 of width for vertical.
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float width = 0.f; // Width for horizontal layout, height for vertical.
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float width_trimmed = 0.f;
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float upos = 0.f;
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float uthk = 0.f;
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TrimData overrun_trim_data;
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bool fit_width_minimum_reached = false;
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Vector<Glyph> glyphs;
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Vector<Glyph> glyphs_logical;
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};
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Map<char32_t, char32_t> diacritics_map;
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void _diacritics_map_add(const String &p_from, char32_t p_to);
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void _init_diacritics_map();
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static void _bind_methods();
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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;
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virtual bool has(RID p_rid) = 0;
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virtual bool load_support_data(const String &p_filename) = 0;
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virtual String get_support_data_filename() const = 0;
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virtual String get_support_data_info() const = 0;
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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; };
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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;
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virtual void font_set_data(RID p_font_rid, const PackedByteArray &p_data) = 0;
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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;
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virtual uint32_t /*FontStyle*/ font_get_style(RID p_font_rid) const = 0;
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virtual void font_set_name(RID p_font_rid, const String &p_name) = 0;
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virtual String font_get_name(RID p_font_rid) const = 0;
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virtual void font_set_style_name(RID p_font_rid, const String &p_name) = 0;
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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;
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virtual bool font_is_antialiased(RID p_font_rid) const = 0;
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virtual void font_set_multichannel_signed_distance_field(RID p_font_rid, bool p_msdf) = 0;
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virtual bool font_is_multichannel_signed_distance_field(RID p_font_rid) const = 0;
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virtual void font_set_msdf_pixel_range(RID p_font_rid, int p_msdf_pixel_range) = 0;
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virtual int font_get_msdf_pixel_range(RID p_font_rid) const = 0;
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virtual void font_set_msdf_size(RID p_font_rid, int p_msdf_size) = 0;
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virtual int font_get_msdf_size(RID p_font_rid) const = 0;
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virtual void font_set_fixed_size(RID p_font_rid, int p_fixed_size) = 0;
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virtual int font_get_fixed_size(RID p_font_rid) const = 0;
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virtual void font_set_force_autohinter(RID p_font_rid, bool p_force_autohinter) = 0;
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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;
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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;
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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;
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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;
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virtual void font_clear_size_cache(RID p_font_rid) = 0;
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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;
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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;
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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;
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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;
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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;
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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;
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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;
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virtual void font_clear_textures(RID p_font_rid, const Vector2i &p_size) = 0;
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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;
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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;
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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;
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virtual void font_clear_glyphs(RID p_font_rid, const Vector2i &p_size) = 0;
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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;
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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;
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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;
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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;
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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;
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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;
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virtual void font_clear_kerning_map(RID p_font_rid, int p_size) = 0;
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virtual void font_remove_kerning(RID p_font_rid, int p_size, const Vector2i &p_glyph_pair) = 0;
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virtual void font_set_kerning(RID p_font_rid, int p_size, const Vector2i &p_glyph_pair, const Vector2 &p_kerning) = 0;
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virtual Vector2 font_get_kerning(RID p_font_rid, int p_size, const Vector2i &p_glyph_pair) const = 0;
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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;
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virtual bool font_has_char(RID p_font_rid, char32_t p_char) const = 0;
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virtual String font_get_supported_chars(RID p_font_rid) const = 0;
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virtual void font_render_range(RID p_font, const Vector2i &p_size, char32_t p_start, char32_t p_end) = 0;
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virtual void font_render_glyph(RID p_font_rid, const Vector2i &p_size, int32_t p_index) = 0;
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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;
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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;
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virtual bool font_is_language_supported(RID p_font_rid, const String &p_language) const = 0;
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virtual void font_set_language_support_override(RID p_font_rid, const String &p_language, bool p_supported) = 0;
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virtual bool font_get_language_support_override(RID p_font_rid, const String &p_language) = 0;
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virtual void font_remove_language_support_override(RID p_font_rid, const String &p_language) = 0;
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virtual Vector<String> font_get_language_support_overrides(RID p_font_rid) = 0;
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virtual bool font_is_script_supported(RID p_font_rid, const String &p_script) const = 0;
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virtual void font_set_script_support_override(RID p_font_rid, const String &p_script, bool p_supported) = 0;
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virtual bool font_get_script_support_override(RID p_font_rid, const String &p_script) = 0;
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virtual void font_remove_script_support_override(RID p_font_rid, const String &p_script) = 0;
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virtual Vector<String> font_get_script_support_overrides(RID p_font_rid) = 0;
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virtual Dictionary font_supported_feature_list(RID p_font_rid) const = 0;
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virtual Dictionary font_supported_variation_list(RID p_font_rid) const = 0;
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virtual float font_get_global_oversampling() const = 0;
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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;
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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 */
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virtual RID create_shaped_text(Direction p_direction = DIRECTION_AUTO, Orientation p_orientation = ORIENTATION_HORIZONTAL) = 0;
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virtual void shaped_text_clear(RID p_shaped) = 0;
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virtual void shaped_text_set_direction(RID p_shaped, Direction p_direction = DIRECTION_AUTO) = 0;
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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;
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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;
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virtual Orientation shaped_text_get_orientation(RID p_shaped) const = 0;
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virtual void shaped_text_set_preserve_invalid(RID p_shaped, bool p_enabled) = 0;
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virtual bool shaped_text_get_preserve_invalid(RID p_shaped) const = 0;
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virtual void shaped_text_set_preserve_control(RID p_shaped, bool p_enabled) = 0;
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virtual bool shaped_text_get_preserve_control(RID p_shaped) const = 0;
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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, InlineAlignment p_inline_align = INLINE_ALIGNMENT_CENTER, int p_length = 1) = 0;
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virtual bool shaped_text_resize_object(RID p_shaped, Variant p_key, const Size2 &p_size, InlineAlignment p_inline_align = INLINE_ALIGNMENT_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.
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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;
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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;
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virtual bool shaped_text_update_breaks(RID p_shaped) = 0;
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virtual bool shaped_text_update_justification_ops(RID p_shaped) = 0;
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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;
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Array _shaped_text_get_glyphs_wrapper(RID p_shaped) const;
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virtual const Glyph *shaped_text_sort_logical(RID p_shaped) = 0;
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Array _shaped_text_sort_logical_wrapper(RID p_shaped);
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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;
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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;
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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;
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virtual int shaped_text_get_ellipsis_pos(RID p_shaped) const = 0;
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virtual const Glyph *shaped_text_get_ellipsis_glyphs(RID p_shaped) const = 0;
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Array _shaped_text_get_ellipsis_glyphs_wrapper(RID p_shaped) const;
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virtual int shaped_text_get_ellipsis_glyph_count(RID p_shaped) const = 0;
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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;
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virtual Rect2 shaped_text_get_object_rect(RID p_shaped, Variant p_key) const = 0;
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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;
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virtual float shaped_text_get_descent(RID p_shaped) const = 0;
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virtual float shaped_text_get_width(RID p_shaped) const = 0;
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virtual float shaped_text_get_underline_position(RID p_shaped) const = 0;
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virtual float shaped_text_get_underline_thickness(RID p_shaped) const = 0;
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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;
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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.
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virtual int shaped_text_hit_test_position(RID p_shaped, float p_coords) const; // Return caret/selection position.
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virtual Vector2 shaped_text_get_grapheme_bounds(RID p_shaped, int p_pos) const;
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virtual int shaped_text_next_grapheme_pos(RID p_shaped, int p_pos) const;
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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;
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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.
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virtual String format_number(const String &p_string, const String &p_language = "") const { return p_string; };
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virtual String parse_number(const String &p_string, const String &p_language = "") const { return p_string; };
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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();
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~TextServer();
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};
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/*************************************************************************/
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struct Glyph {
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int start = -1; // Start offset in the source string.
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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.
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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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float x_off = 0.f; // Offset from the origin of the glyph on baseline.
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float y_off = 0.f;
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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.
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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;
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bool operator!=(const Glyph &p_a) const;
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bool operator<(const Glyph &p_a) const;
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bool operator>(const Glyph &p_a) const;
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};
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struct CaretInfo {
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Rect2 l_caret;
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Rect2 t_caret;
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TextServer::Direction l_dir;
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TextServer::Direction t_dir;
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};
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struct GlyphCompare { // For line breaking reordering.
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_FORCE_INLINE_ bool operator()(const Glyph &l, const Glyph &r) const {
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if (l.start == r.start) {
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if (l.count == r.count) {
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if ((l.flags & TextServer::GRAPHEME_IS_VIRTUAL) == TextServer::GRAPHEME_IS_VIRTUAL) {
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return false;
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} else {
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return true;
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}
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}
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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 {
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return l.start < r.start;
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}
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}
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};
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/*************************************************************************/
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class TextServerManager : public Object {
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GDCLASS(TextServerManager, Object);
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protected:
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static void _bind_methods();
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private:
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static TextServerManager *singleton;
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Ref<TextServer> primary_interface;
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Vector<Ref<TextServer>> interfaces;
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public:
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_FORCE_INLINE_ static TextServerManager *get_singleton() {
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return singleton;
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}
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void add_interface(const Ref<TextServer> &p_interface);
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void remove_interface(const Ref<TextServer> &p_interface);
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int get_interface_count() const;
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Ref<TextServer> get_interface(int p_index) const;
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Ref<TextServer> find_interface(const String &p_name) const;
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Array get_interfaces() const;
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_FORCE_INLINE_ Ref<TextServer> get_primary_interface() const {
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return primary_interface;
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}
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void set_primary_interface(const Ref<TextServer> &p_primary_interface);
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TextServerManager();
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~TextServerManager();
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};
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/*************************************************************************/
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#define TS TextServerManager::get_singleton()->get_primary_interface()
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VARIANT_ENUM_CAST(TextServer::Direction);
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VARIANT_ENUM_CAST(TextServer::Orientation);
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VARIANT_ENUM_CAST(TextServer::JustificationFlag);
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VARIANT_ENUM_CAST(TextServer::LineBreakFlag);
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VARIANT_ENUM_CAST(TextServer::TextOverrunFlag);
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VARIANT_ENUM_CAST(TextServer::GraphemeFlag);
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VARIANT_ENUM_CAST(TextServer::Hinting);
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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);
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GDVIRTUAL_NATIVE_PTR(Glyph *);
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GDVIRTUAL_NATIVE_PTR(CaretInfo);
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#endif // TEXT_SERVER_H
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