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d95794ec8a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
465 lines
17 KiB
C++
465 lines
17 KiB
C++
/**************************************************************************/
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/* text_line.cpp */
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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) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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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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#include "text_line.h"
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void TextLine::_bind_methods() {
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ClassDB::bind_method(D_METHOD("clear"), &TextLine::clear);
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ClassDB::bind_method(D_METHOD("set_direction", "direction"), &TextLine::set_direction);
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ClassDB::bind_method(D_METHOD("get_direction"), &TextLine::get_direction);
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ADD_PROPERTY(PropertyInfo(Variant::INT, "direction", PROPERTY_HINT_ENUM, "Auto,Left-to-right,Right-to-left"), "set_direction", "get_direction");
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ClassDB::bind_method(D_METHOD("set_orientation", "orientation"), &TextLine::set_orientation);
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ClassDB::bind_method(D_METHOD("get_orientation"), &TextLine::get_orientation);
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ADD_PROPERTY(PropertyInfo(Variant::INT, "orientation", PROPERTY_HINT_ENUM, "Horizontal,Orientation"), "set_orientation", "get_orientation");
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ClassDB::bind_method(D_METHOD("set_preserve_invalid", "enabled"), &TextLine::set_preserve_invalid);
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ClassDB::bind_method(D_METHOD("get_preserve_invalid"), &TextLine::get_preserve_invalid);
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "preserve_invalid"), "set_preserve_invalid", "get_preserve_invalid");
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ClassDB::bind_method(D_METHOD("set_preserve_control", "enabled"), &TextLine::set_preserve_control);
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ClassDB::bind_method(D_METHOD("get_preserve_control"), &TextLine::get_preserve_control);
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "preserve_control"), "set_preserve_control", "get_preserve_control");
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ClassDB::bind_method(D_METHOD("set_bidi_override", "override"), &TextLine::set_bidi_override);
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ClassDB::bind_method(D_METHOD("add_string", "text", "font", "font_size", "language", "meta"), &TextLine::add_string, DEFVAL(""), DEFVAL(Variant()));
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ClassDB::bind_method(D_METHOD("add_object", "key", "size", "inline_align", "length", "baseline"), &TextLine::add_object, DEFVAL(INLINE_ALIGNMENT_CENTER), DEFVAL(1), DEFVAL(0.0));
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ClassDB::bind_method(D_METHOD("resize_object", "key", "size", "inline_align", "baseline"), &TextLine::resize_object, DEFVAL(INLINE_ALIGNMENT_CENTER), DEFVAL(0.0));
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ClassDB::bind_method(D_METHOD("set_width", "width"), &TextLine::set_width);
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ClassDB::bind_method(D_METHOD("get_width"), &TextLine::get_width);
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "width"), "set_width", "get_width");
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ClassDB::bind_method(D_METHOD("set_horizontal_alignment", "alignment"), &TextLine::set_horizontal_alignment);
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ClassDB::bind_method(D_METHOD("get_horizontal_alignment"), &TextLine::get_horizontal_alignment);
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ADD_PROPERTY(PropertyInfo(Variant::INT, "alignment", PROPERTY_HINT_ENUM, "Left,Center,Right,Fill"), "set_horizontal_alignment", "get_horizontal_alignment");
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ClassDB::bind_method(D_METHOD("tab_align", "tab_stops"), &TextLine::tab_align);
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ClassDB::bind_method(D_METHOD("set_flags", "flags"), &TextLine::set_flags);
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ClassDB::bind_method(D_METHOD("get_flags"), &TextLine::get_flags);
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ADD_PROPERTY(PropertyInfo(Variant::INT, "flags", PROPERTY_HINT_FLAGS, "Kashida Justification,Word Justification,Trim Edge Spaces After Justification,Justify Only After Last Tab,Constrain Ellipsis"), "set_flags", "get_flags");
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ClassDB::bind_method(D_METHOD("set_text_overrun_behavior", "overrun_behavior"), &TextLine::set_text_overrun_behavior);
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ClassDB::bind_method(D_METHOD("get_text_overrun_behavior"), &TextLine::get_text_overrun_behavior);
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ADD_PROPERTY(PropertyInfo(Variant::INT, "text_overrun_behavior", PROPERTY_HINT_ENUM, "Trim Nothing,Trim Characters,Trim Words,Ellipsis,Word Ellipsis"), "set_text_overrun_behavior", "get_text_overrun_behavior");
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ClassDB::bind_method(D_METHOD("get_objects"), &TextLine::get_objects);
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ClassDB::bind_method(D_METHOD("get_object_rect", "key"), &TextLine::get_object_rect);
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ClassDB::bind_method(D_METHOD("get_size"), &TextLine::get_size);
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ClassDB::bind_method(D_METHOD("get_rid"), &TextLine::get_rid);
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ClassDB::bind_method(D_METHOD("get_line_ascent"), &TextLine::get_line_ascent);
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ClassDB::bind_method(D_METHOD("get_line_descent"), &TextLine::get_line_descent);
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ClassDB::bind_method(D_METHOD("get_line_width"), &TextLine::get_line_width);
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ClassDB::bind_method(D_METHOD("get_line_underline_position"), &TextLine::get_line_underline_position);
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ClassDB::bind_method(D_METHOD("get_line_underline_thickness"), &TextLine::get_line_underline_thickness);
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ClassDB::bind_method(D_METHOD("draw", "canvas", "pos", "color"), &TextLine::draw, DEFVAL(Color(1, 1, 1)));
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ClassDB::bind_method(D_METHOD("draw_outline", "canvas", "pos", "outline_size", "color"), &TextLine::draw_outline, DEFVAL(1), DEFVAL(Color(1, 1, 1)));
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ClassDB::bind_method(D_METHOD("hit_test", "coords"), &TextLine::hit_test);
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}
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void TextLine::_shape() {
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if (dirty) {
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if (!tab_stops.is_empty()) {
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TS->shaped_text_tab_align(rid, tab_stops);
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}
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BitField<TextServer::TextOverrunFlag> overrun_flags = TextServer::OVERRUN_NO_TRIM;
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if (overrun_behavior != TextServer::OVERRUN_NO_TRIMMING) {
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switch (overrun_behavior) {
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case TextServer::OVERRUN_TRIM_WORD_ELLIPSIS:
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overrun_flags.set_flag(TextServer::OVERRUN_TRIM);
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overrun_flags.set_flag(TextServer::OVERRUN_TRIM_WORD_ONLY);
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overrun_flags.set_flag(TextServer::OVERRUN_ADD_ELLIPSIS);
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break;
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case TextServer::OVERRUN_TRIM_ELLIPSIS:
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overrun_flags.set_flag(TextServer::OVERRUN_TRIM);
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overrun_flags.set_flag(TextServer::OVERRUN_ADD_ELLIPSIS);
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break;
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case TextServer::OVERRUN_TRIM_WORD:
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overrun_flags.set_flag(TextServer::OVERRUN_TRIM);
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overrun_flags.set_flag(TextServer::OVERRUN_TRIM_WORD_ONLY);
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break;
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case TextServer::OVERRUN_TRIM_CHAR:
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overrun_flags.set_flag(TextServer::OVERRUN_TRIM);
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break;
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case TextServer::OVERRUN_NO_TRIMMING:
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break;
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}
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if (alignment == HORIZONTAL_ALIGNMENT_FILL) {
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TS->shaped_text_fit_to_width(rid, width, flags);
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overrun_flags.set_flag(TextServer::OVERRUN_JUSTIFICATION_AWARE);
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TS->shaped_text_overrun_trim_to_width(rid, width, overrun_flags);
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} else {
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TS->shaped_text_overrun_trim_to_width(rid, width, overrun_flags);
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}
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} else if (alignment == HORIZONTAL_ALIGNMENT_FILL) {
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TS->shaped_text_fit_to_width(rid, width, flags);
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}
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dirty = false;
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}
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}
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RID TextLine::get_rid() const {
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return rid;
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}
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void TextLine::clear() {
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TS->shaped_text_clear(rid);
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}
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void TextLine::set_preserve_invalid(bool p_enabled) {
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TS->shaped_text_set_preserve_invalid(rid, p_enabled);
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dirty = true;
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}
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bool TextLine::get_preserve_invalid() const {
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return TS->shaped_text_get_preserve_invalid(rid);
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}
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void TextLine::set_preserve_control(bool p_enabled) {
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TS->shaped_text_set_preserve_control(rid, p_enabled);
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dirty = true;
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}
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bool TextLine::get_preserve_control() const {
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return TS->shaped_text_get_preserve_control(rid);
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}
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void TextLine::set_direction(TextServer::Direction p_direction) {
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TS->shaped_text_set_direction(rid, p_direction);
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dirty = true;
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}
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TextServer::Direction TextLine::get_direction() const {
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return TS->shaped_text_get_direction(rid);
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}
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void TextLine::set_orientation(TextServer::Orientation p_orientation) {
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TS->shaped_text_set_orientation(rid, p_orientation);
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dirty = true;
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}
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TextServer::Orientation TextLine::get_orientation() const {
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return TS->shaped_text_get_orientation(rid);
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}
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void TextLine::set_bidi_override(const Array &p_override) {
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TS->shaped_text_set_bidi_override(rid, p_override);
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dirty = true;
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}
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bool TextLine::add_string(const String &p_text, const Ref<Font> &p_font, int p_font_size, const String &p_language, const Variant &p_meta) {
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ERR_FAIL_COND_V(p_font.is_null(), false);
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bool res = TS->shaped_text_add_string(rid, p_text, p_font->get_rids(), p_font_size, p_font->get_opentype_features(), p_language, p_meta);
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for (int i = 0; i < TextServer::SPACING_MAX; i++) {
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TS->shaped_text_set_spacing(rid, TextServer::SpacingType(i), p_font->get_spacing(TextServer::SpacingType(i)));
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}
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dirty = true;
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return res;
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}
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bool TextLine::add_object(Variant p_key, const Size2 &p_size, InlineAlignment p_inline_align, int p_length, float p_baseline) {
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bool res = TS->shaped_text_add_object(rid, p_key, p_size, p_inline_align, p_length, p_baseline);
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dirty = true;
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return res;
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}
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bool TextLine::resize_object(Variant p_key, const Size2 &p_size, InlineAlignment p_inline_align, float p_baseline) {
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const_cast<TextLine *>(this)->_shape();
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return TS->shaped_text_resize_object(rid, p_key, p_size, p_inline_align, p_baseline);
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}
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Array TextLine::get_objects() const {
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return TS->shaped_text_get_objects(rid);
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}
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Rect2 TextLine::get_object_rect(Variant p_key) const {
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Vector2 ofs;
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float length = TS->shaped_text_get_width(rid);
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if (width > 0) {
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switch (alignment) {
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case HORIZONTAL_ALIGNMENT_FILL:
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case HORIZONTAL_ALIGNMENT_LEFT:
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break;
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case HORIZONTAL_ALIGNMENT_CENTER: {
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if (length <= width) {
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if (TS->shaped_text_get_orientation(rid) == TextServer::ORIENTATION_HORIZONTAL) {
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ofs.x += Math::floor((width - length) / 2.0);
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} else {
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ofs.y += Math::floor((width - length) / 2.0);
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}
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} else if (TS->shaped_text_get_inferred_direction(rid) == TextServer::DIRECTION_RTL) {
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if (TS->shaped_text_get_orientation(rid) == TextServer::ORIENTATION_HORIZONTAL) {
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ofs.x += width - length;
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} else {
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ofs.y += width - length;
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}
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}
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} break;
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case HORIZONTAL_ALIGNMENT_RIGHT: {
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if (TS->shaped_text_get_orientation(rid) == TextServer::ORIENTATION_HORIZONTAL) {
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ofs.x += width - length;
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} else {
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ofs.y += width - length;
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}
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} break;
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}
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}
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if (TS->shaped_text_get_orientation(rid) == TextServer::ORIENTATION_HORIZONTAL) {
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ofs.y += TS->shaped_text_get_ascent(rid);
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} else {
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ofs.x += TS->shaped_text_get_ascent(rid);
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}
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Rect2 rect = TS->shaped_text_get_object_rect(rid, p_key);
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rect.position += ofs;
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return rect;
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}
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void TextLine::set_horizontal_alignment(HorizontalAlignment p_alignment) {
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if (alignment != p_alignment) {
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if (alignment == HORIZONTAL_ALIGNMENT_FILL || p_alignment == HORIZONTAL_ALIGNMENT_FILL) {
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alignment = p_alignment;
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dirty = true;
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} else {
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alignment = p_alignment;
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}
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}
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}
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HorizontalAlignment TextLine::get_horizontal_alignment() const {
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return alignment;
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}
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void TextLine::tab_align(const Vector<float> &p_tab_stops) {
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tab_stops = p_tab_stops;
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dirty = true;
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}
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void TextLine::set_flags(BitField<TextServer::JustificationFlag> p_flags) {
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if (flags != p_flags) {
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flags = p_flags;
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dirty = true;
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}
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}
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BitField<TextServer::JustificationFlag> TextLine::get_flags() const {
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return flags;
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}
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void TextLine::set_text_overrun_behavior(TextServer::OverrunBehavior p_behavior) {
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if (overrun_behavior != p_behavior) {
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overrun_behavior = p_behavior;
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dirty = true;
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}
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}
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TextServer::OverrunBehavior TextLine::get_text_overrun_behavior() const {
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return overrun_behavior;
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}
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void TextLine::set_width(float p_width) {
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width = p_width;
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if (alignment == HORIZONTAL_ALIGNMENT_FILL || overrun_behavior != TextServer::OVERRUN_NO_TRIMMING) {
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dirty = true;
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}
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}
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float TextLine::get_width() const {
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return width;
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}
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Size2 TextLine::get_size() const {
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const_cast<TextLine *>(this)->_shape();
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return TS->shaped_text_get_size(rid);
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}
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float TextLine::get_line_ascent() const {
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const_cast<TextLine *>(this)->_shape();
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return TS->shaped_text_get_ascent(rid);
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}
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float TextLine::get_line_descent() const {
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const_cast<TextLine *>(this)->_shape();
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return TS->shaped_text_get_descent(rid);
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}
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float TextLine::get_line_width() const {
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const_cast<TextLine *>(this)->_shape();
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return TS->shaped_text_get_width(rid);
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}
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float TextLine::get_line_underline_position() const {
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const_cast<TextLine *>(this)->_shape();
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return TS->shaped_text_get_underline_position(rid);
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}
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float TextLine::get_line_underline_thickness() const {
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const_cast<TextLine *>(this)->_shape();
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return TS->shaped_text_get_underline_thickness(rid);
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}
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void TextLine::draw(RID p_canvas, const Vector2 &p_pos, const Color &p_color) const {
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const_cast<TextLine *>(this)->_shape();
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Vector2 ofs = p_pos;
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float length = TS->shaped_text_get_width(rid);
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if (width > 0) {
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switch (alignment) {
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case HORIZONTAL_ALIGNMENT_FILL:
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case HORIZONTAL_ALIGNMENT_LEFT:
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break;
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case HORIZONTAL_ALIGNMENT_CENTER: {
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if (length <= width) {
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if (TS->shaped_text_get_orientation(rid) == TextServer::ORIENTATION_HORIZONTAL) {
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ofs.x += Math::floor((width - length) / 2.0);
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} else {
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ofs.y += Math::floor((width - length) / 2.0);
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}
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} else if (TS->shaped_text_get_inferred_direction(rid) == TextServer::DIRECTION_RTL) {
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if (TS->shaped_text_get_orientation(rid) == TextServer::ORIENTATION_HORIZONTAL) {
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ofs.x += width - length;
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} else {
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ofs.y += width - length;
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}
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}
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} break;
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case HORIZONTAL_ALIGNMENT_RIGHT: {
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if (TS->shaped_text_get_orientation(rid) == TextServer::ORIENTATION_HORIZONTAL) {
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ofs.x += width - length;
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} else {
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ofs.y += width - length;
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}
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} break;
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}
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}
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float clip_l;
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if (TS->shaped_text_get_orientation(rid) == TextServer::ORIENTATION_HORIZONTAL) {
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ofs.y += TS->shaped_text_get_ascent(rid);
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clip_l = MAX(0, p_pos.x - ofs.x);
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} else {
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ofs.x += TS->shaped_text_get_ascent(rid);
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clip_l = MAX(0, p_pos.y - ofs.y);
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}
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return TS->shaped_text_draw(rid, p_canvas, ofs, clip_l, clip_l + width, p_color);
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}
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void TextLine::draw_outline(RID p_canvas, const Vector2 &p_pos, int p_outline_size, const Color &p_color) const {
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const_cast<TextLine *>(this)->_shape();
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Vector2 ofs = p_pos;
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float length = TS->shaped_text_get_width(rid);
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if (width > 0) {
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switch (alignment) {
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case HORIZONTAL_ALIGNMENT_FILL:
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case HORIZONTAL_ALIGNMENT_LEFT:
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break;
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case HORIZONTAL_ALIGNMENT_CENTER: {
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if (length <= width) {
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if (TS->shaped_text_get_orientation(rid) == TextServer::ORIENTATION_HORIZONTAL) {
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ofs.x += Math::floor((width - length) / 2.0);
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} else {
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ofs.y += Math::floor((width - length) / 2.0);
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}
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} else if (TS->shaped_text_get_inferred_direction(rid) == TextServer::DIRECTION_RTL) {
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if (TS->shaped_text_get_orientation(rid) == TextServer::ORIENTATION_HORIZONTAL) {
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ofs.x += width - length;
|
|
} else {
|
|
ofs.y += width - length;
|
|
}
|
|
}
|
|
} break;
|
|
case HORIZONTAL_ALIGNMENT_RIGHT: {
|
|
if (TS->shaped_text_get_orientation(rid) == TextServer::ORIENTATION_HORIZONTAL) {
|
|
ofs.x += width - length;
|
|
} else {
|
|
ofs.y += width - length;
|
|
}
|
|
} break;
|
|
}
|
|
}
|
|
|
|
float clip_l;
|
|
if (TS->shaped_text_get_orientation(rid) == TextServer::ORIENTATION_HORIZONTAL) {
|
|
ofs.y += TS->shaped_text_get_ascent(rid);
|
|
clip_l = MAX(0, p_pos.x - ofs.x);
|
|
} else {
|
|
ofs.x += TS->shaped_text_get_ascent(rid);
|
|
clip_l = MAX(0, p_pos.y - ofs.y);
|
|
}
|
|
return TS->shaped_text_draw_outline(rid, p_canvas, ofs, clip_l, clip_l + width, p_outline_size, p_color);
|
|
}
|
|
|
|
int TextLine::hit_test(float p_coords) const {
|
|
const_cast<TextLine *>(this)->_shape();
|
|
|
|
return TS->shaped_text_hit_test_position(rid, p_coords);
|
|
}
|
|
|
|
TextLine::TextLine(const String &p_text, const Ref<Font> &p_font, int p_font_size, const String &p_language, TextServer::Direction p_direction, TextServer::Orientation p_orientation) {
|
|
rid = TS->create_shaped_text(p_direction, p_orientation);
|
|
if (p_font.is_valid()) {
|
|
TS->shaped_text_add_string(rid, p_text, p_font->get_rids(), p_font_size, p_font->get_opentype_features(), p_language);
|
|
for (int i = 0; i < TextServer::SPACING_MAX; i++) {
|
|
TS->shaped_text_set_spacing(rid, TextServer::SpacingType(i), p_font->get_spacing(TextServer::SpacingType(i)));
|
|
}
|
|
}
|
|
}
|
|
|
|
TextLine::TextLine() {
|
|
rid = TS->create_shaped_text();
|
|
}
|
|
|
|
TextLine::~TextLine() {
|
|
TS->free_rid(rid);
|
|
}
|