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73b6c0b972
In other words, exclude trimmable labels from the special logic used for non-wrapping ones, since they are not expected to dictate their width authoritatively.
1027 lines
38 KiB
C++
1027 lines
38 KiB
C++
/**************************************************************************/
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/* label.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 "label.h"
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#include "core/config/project_settings.h"
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#include "core/core_string_names.h"
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#include "core/string/print_string.h"
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#include "core/string/translation.h"
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#include "servers/text_server.h"
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void Label::set_autowrap_mode(TextServer::AutowrapMode p_mode) {
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if (autowrap_mode == p_mode) {
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return;
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}
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autowrap_mode = p_mode;
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lines_dirty = true;
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queue_redraw();
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if (clip || overrun_behavior != TextServer::OVERRUN_NO_TRIMMING) {
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update_minimum_size();
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}
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}
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TextServer::AutowrapMode Label::get_autowrap_mode() const {
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return autowrap_mode;
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}
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void Label::set_uppercase(bool p_uppercase) {
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if (uppercase == p_uppercase) {
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return;
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}
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uppercase = p_uppercase;
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dirty = true;
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queue_redraw();
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}
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bool Label::is_uppercase() const {
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return uppercase;
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}
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int Label::get_line_height(int p_line) const {
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Ref<Font> font = (settings.is_valid() && settings->get_font().is_valid()) ? settings->get_font() : theme_cache.font;
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if (p_line >= 0 && p_line < lines_rid.size()) {
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return TS->shaped_text_get_size(lines_rid[p_line]).y;
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} else if (lines_rid.size() > 0) {
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int h = 0;
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for (int i = 0; i < lines_rid.size(); i++) {
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h = MAX(h, TS->shaped_text_get_size(lines_rid[i]).y);
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}
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return h;
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} else {
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int font_size = settings.is_valid() ? settings->get_font_size() : theme_cache.font_size;
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return font->get_height(font_size);
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}
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}
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bool Label::_shape() {
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Ref<StyleBox> style = theme_cache.normal_style;
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int width = (get_size().width - style->get_minimum_size().width);
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if (dirty || font_dirty) {
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if (dirty) {
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TS->shaped_text_clear(text_rid);
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}
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if (text_direction == Control::TEXT_DIRECTION_INHERITED) {
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TS->shaped_text_set_direction(text_rid, is_layout_rtl() ? TextServer::DIRECTION_RTL : TextServer::DIRECTION_LTR);
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} else {
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TS->shaped_text_set_direction(text_rid, (TextServer::Direction)text_direction);
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}
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const Ref<Font> &font = (settings.is_valid() && settings->get_font().is_valid()) ? settings->get_font() : theme_cache.font;
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int font_size = settings.is_valid() ? settings->get_font_size() : theme_cache.font_size;
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ERR_FAIL_COND_V(font.is_null(), true);
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String txt = (uppercase) ? TS->string_to_upper(xl_text, language) : xl_text;
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if (visible_chars >= 0 && visible_chars_behavior == TextServer::VC_CHARS_BEFORE_SHAPING) {
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txt = txt.substr(0, visible_chars);
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}
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if (dirty) {
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TS->shaped_text_add_string(text_rid, txt, font->get_rids(), font_size, font->get_opentype_features(), language);
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} else {
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int spans = TS->shaped_get_span_count(text_rid);
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for (int i = 0; i < spans; i++) {
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TS->shaped_set_span_update_font(text_rid, i, font->get_rids(), font_size, font->get_opentype_features());
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}
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}
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for (int i = 0; i < TextServer::SPACING_MAX; i++) {
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TS->shaped_text_set_spacing(text_rid, TextServer::SpacingType(i), font->get_spacing(TextServer::SpacingType(i)));
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}
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TS->shaped_text_set_bidi_override(text_rid, structured_text_parser(st_parser, st_args, txt));
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dirty = false;
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font_dirty = false;
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lines_dirty = true;
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// Note for future maintainers: forgetting stable width here (e.g., setting it to -1) may fix still undiscovered bugs.
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}
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if (lines_dirty) {
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for (int i = 0; i < lines_rid.size(); i++) {
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TS->free_rid(lines_rid[i]);
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}
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lines_rid.clear();
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}
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Size2i prev_minsize = minsize;
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minsize = Size2();
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bool can_process_lines = false;
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if (xl_text.length() == 0) {
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can_process_lines = true;
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lines_dirty = false;
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} else {
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// With autowrap on or off with trimming enabled, we won't compute the minimum size until width is stable
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// (two shape requests in a row with the same width.) This avoids situations in which the initial width is
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// very narrow and the label would break text into many very short lines, causing a very tall label that can
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// leave a deformed container. In the remaining case (namely, autowrap off and no trimming), the label is
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// free to dictate its own width, something that will be taken advtantage of.
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bool can_dictate_width = autowrap_mode == TextServer::AUTOWRAP_OFF && overrun_behavior == TextServer::OVERRUN_NO_TRIMMING;
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bool is_width_stable = get_size().width == stable_width;
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can_process_lines = can_dictate_width || is_width_stable;
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stable_width = get_size().width;
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if (can_process_lines) {
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if (lines_dirty) {
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BitField<TextServer::LineBreakFlag> autowrap_flags = TextServer::BREAK_MANDATORY;
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switch (autowrap_mode) {
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case TextServer::AUTOWRAP_WORD_SMART:
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autowrap_flags = TextServer::BREAK_WORD_BOUND | TextServer::BREAK_ADAPTIVE | TextServer::BREAK_MANDATORY;
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break;
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case TextServer::AUTOWRAP_WORD:
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autowrap_flags = TextServer::BREAK_WORD_BOUND | TextServer::BREAK_MANDATORY;
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break;
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case TextServer::AUTOWRAP_ARBITRARY:
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autowrap_flags = TextServer::BREAK_GRAPHEME_BOUND | TextServer::BREAK_MANDATORY;
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break;
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case TextServer::AUTOWRAP_OFF:
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break;
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}
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autowrap_flags = autowrap_flags | TextServer::BREAK_TRIM_EDGE_SPACES;
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PackedInt32Array line_breaks = TS->shaped_text_get_line_breaks(text_rid, width, 0, autowrap_flags);
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for (int i = 0; i < line_breaks.size(); i = i + 2) {
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RID line = TS->shaped_text_substr(text_rid, line_breaks[i], line_breaks[i + 1] - line_breaks[i]);
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lines_rid.push_back(line);
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}
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}
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if (can_dictate_width) {
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for (int i = 0; i < lines_rid.size(); i++) {
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if (minsize.width < TS->shaped_text_get_size(lines_rid[i]).x) {
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minsize.width = TS->shaped_text_get_size(lines_rid[i]).x;
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}
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}
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width = (minsize.width - style->get_minimum_size().width);
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}
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if (lines_dirty) {
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BitField<TextServer::TextOverrunFlag> overrun_flags = TextServer::OVERRUN_NO_TRIM;
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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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// Fill after min_size calculation.
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int visible_lines = lines_rid.size();
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if (max_lines_visible >= 0 && visible_lines > max_lines_visible) {
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visible_lines = max_lines_visible;
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}
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if (autowrap_mode != TextServer::AUTOWRAP_OFF) {
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bool lines_hidden = visible_lines > 0 && visible_lines < lines_rid.size();
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if (lines_hidden) {
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overrun_flags.set_flag(TextServer::OVERRUN_ENFORCE_ELLIPSIS);
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}
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if (horizontal_alignment == HORIZONTAL_ALIGNMENT_FILL) {
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for (int i = 0; i < lines_rid.size(); i++) {
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if (i < visible_lines - 1 || lines_rid.size() == 1) {
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TS->shaped_text_fit_to_width(lines_rid[i], width);
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} else if (i == (visible_lines - 1)) {
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TS->shaped_text_overrun_trim_to_width(lines_rid[visible_lines - 1], width, overrun_flags);
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}
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}
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} else if (lines_hidden) {
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TS->shaped_text_overrun_trim_to_width(lines_rid[visible_lines - 1], width, overrun_flags);
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}
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} else {
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// Autowrap disabled.
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for (int i = 0; i < lines_rid.size(); i++) {
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if (horizontal_alignment == HORIZONTAL_ALIGNMENT_FILL) {
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TS->shaped_text_fit_to_width(lines_rid[i], width);
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overrun_flags.set_flag(TextServer::OVERRUN_JUSTIFICATION_AWARE);
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TS->shaped_text_overrun_trim_to_width(lines_rid[i], width, overrun_flags);
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TS->shaped_text_fit_to_width(lines_rid[i], width, TextServer::JUSTIFICATION_WORD_BOUND | TextServer::JUSTIFICATION_KASHIDA | TextServer::JUSTIFICATION_CONSTRAIN_ELLIPSIS);
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} else {
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TS->shaped_text_overrun_trim_to_width(lines_rid[i], width, overrun_flags);
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}
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}
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}
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int last_line = MIN(lines_rid.size(), visible_lines + lines_skipped);
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int line_spacing = settings.is_valid() ? settings->get_line_spacing() : theme_cache.line_spacing;
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for (int64_t i = lines_skipped; i < last_line; i++) {
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minsize.height += TS->shaped_text_get_size(lines_rid[i]).y + line_spacing;
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}
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lines_dirty = false;
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}
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} else {
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callable_mp(this, &Label::_shape).call_deferred();
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}
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}
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if (draw_pending) {
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queue_redraw();
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draw_pending = false;
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}
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if (minsize != prev_minsize) {
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update_minimum_size();
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}
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return can_process_lines;
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}
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inline void draw_glyph(const Glyph &p_gl, const RID &p_canvas, const Color &p_font_color, const Vector2 &p_ofs) {
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if (p_gl.font_rid != RID()) {
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TS->font_draw_glyph(p_gl.font_rid, p_canvas, p_gl.font_size, p_ofs + Vector2(p_gl.x_off, p_gl.y_off), p_gl.index, p_font_color);
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} else {
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TS->draw_hex_code_box(p_canvas, p_gl.font_size, p_ofs + Vector2(p_gl.x_off, p_gl.y_off), p_gl.index, p_font_color);
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}
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}
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inline void draw_glyph_outline(const Glyph &p_gl, const RID &p_canvas, const Color &p_font_color, const Color &p_font_shadow_color, const Color &p_font_outline_color, const int &p_shadow_outline_size, const int &p_outline_size, const Vector2 &p_ofs, const Vector2 &shadow_ofs) {
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if (p_gl.font_rid != RID()) {
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if (p_font_shadow_color.a > 0) {
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TS->font_draw_glyph(p_gl.font_rid, p_canvas, p_gl.font_size, p_ofs + Vector2(p_gl.x_off, p_gl.y_off) + shadow_ofs, p_gl.index, p_font_shadow_color);
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}
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if (p_font_shadow_color.a > 0 && p_shadow_outline_size > 0) {
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TS->font_draw_glyph_outline(p_gl.font_rid, p_canvas, p_gl.font_size, p_shadow_outline_size, p_ofs + Vector2(p_gl.x_off, p_gl.y_off) + shadow_ofs, p_gl.index, p_font_shadow_color);
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}
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if (p_font_outline_color.a != 0.0 && p_outline_size > 0) {
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TS->font_draw_glyph_outline(p_gl.font_rid, p_canvas, p_gl.font_size, p_outline_size, p_ofs + Vector2(p_gl.x_off, p_gl.y_off), p_gl.index, p_font_outline_color);
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}
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}
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}
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void Label::_update_theme_item_cache() {
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Control::_update_theme_item_cache();
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theme_cache.normal_style = get_theme_stylebox(SNAME("normal"));
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theme_cache.font = get_theme_font(SNAME("font"));
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theme_cache.font_size = get_theme_font_size(SNAME("font_size"));
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theme_cache.line_spacing = get_theme_constant(SNAME("line_spacing"));
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theme_cache.font_color = get_theme_color(SNAME("font_color"));
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theme_cache.font_shadow_color = get_theme_color(SNAME("font_shadow_color"));
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theme_cache.font_shadow_offset = Point2(get_theme_constant(SNAME("shadow_offset_x")), get_theme_constant(SNAME("shadow_offset_y")));
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theme_cache.font_outline_color = get_theme_color(SNAME("font_outline_color"));
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theme_cache.font_outline_size = get_theme_constant(SNAME("outline_size"));
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theme_cache.font_shadow_outline_size = get_theme_constant(SNAME("shadow_outline_size"));
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}
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PackedStringArray Label::get_configuration_warnings() const {
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PackedStringArray warnings = Control::get_configuration_warnings();
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// Ensure that the font can render all of the required glyphs.
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Ref<Font> font;
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if (settings.is_valid()) {
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font = settings->get_font();
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}
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if (font.is_null()) {
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font = theme_cache.font;
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}
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if (font.is_valid()) {
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if (dirty || font_dirty || lines_dirty) {
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const_cast<Label *>(this)->_shape();
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}
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const Glyph *glyph = TS->shaped_text_get_glyphs(text_rid);
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int64_t glyph_count = TS->shaped_text_get_glyph_count(text_rid);
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for (int64_t i = 0; i < glyph_count; i++) {
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if (glyph[i].font_rid == RID()) {
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warnings.push_back(RTR("The current font does not support rendering one or more characters used in this Label's text."));
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break;
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}
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}
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}
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return warnings;
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}
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void Label::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_TRANSLATION_CHANGED: {
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String new_text = atr(text);
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if (new_text == xl_text) {
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return; // Nothing new.
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}
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xl_text = new_text;
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if (visible_ratio < 1) {
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visible_chars = get_total_character_count() * visible_ratio;
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}
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dirty = true;
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queue_redraw();
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update_configuration_warnings();
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} break;
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case NOTIFICATION_LAYOUT_DIRECTION_CHANGED: {
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queue_redraw();
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} break;
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case NOTIFICATION_DRAW: {
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if (clip) {
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RenderingServer::get_singleton()->canvas_item_set_clip(get_canvas_item(), true);
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}
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// When a shaped text is invalidated by an external source, we want to reshape it.
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if (!TS->shaped_text_is_ready(text_rid)) {
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dirty = true;
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}
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for (const RID &line_rid : lines_rid) {
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if (!TS->shaped_text_is_ready(line_rid)) {
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lines_dirty = true;
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break;
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}
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}
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if (dirty || font_dirty || lines_dirty) {
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if (!_shape()) {
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// There will be another pass.
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draw_pending = true;
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break;
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}
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}
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RID ci = get_canvas_item();
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bool has_settings = settings.is_valid();
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Size2 string_size;
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Size2 size = get_size();
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Ref<StyleBox> style = theme_cache.normal_style;
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Ref<Font> font = (has_settings && settings->get_font().is_valid()) ? settings->get_font() : theme_cache.font;
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Color font_color = has_settings ? settings->get_font_color() : theme_cache.font_color;
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Color font_shadow_color = has_settings ? settings->get_shadow_color() : theme_cache.font_shadow_color;
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Point2 shadow_ofs = has_settings ? settings->get_shadow_offset() : theme_cache.font_shadow_offset;
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int line_spacing = has_settings ? settings->get_line_spacing() : theme_cache.line_spacing;
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Color font_outline_color = has_settings ? settings->get_outline_color() : theme_cache.font_outline_color;
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int outline_size = has_settings ? settings->get_outline_size() : theme_cache.font_outline_size;
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int shadow_outline_size = has_settings ? settings->get_shadow_size() : theme_cache.font_shadow_outline_size;
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bool rtl = (TS->shaped_text_get_inferred_direction(text_rid) == TextServer::DIRECTION_RTL);
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bool rtl_layout = is_layout_rtl();
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style->draw(ci, Rect2(Point2(0, 0), get_size()));
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float total_h = 0.0;
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int lines_visible = 0;
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// Get number of lines to fit to the height.
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for (int64_t i = lines_skipped; i < lines_rid.size(); i++) {
|
|
total_h += TS->shaped_text_get_size(lines_rid[i]).y + line_spacing;
|
|
if (total_h > (get_size().height - style->get_minimum_size().height + line_spacing)) {
|
|
break;
|
|
}
|
|
lines_visible++;
|
|
}
|
|
|
|
if (max_lines_visible >= 0 && lines_visible > max_lines_visible) {
|
|
lines_visible = max_lines_visible;
|
|
}
|
|
|
|
int last_line = MIN(lines_rid.size(), lines_visible + lines_skipped);
|
|
bool trim_chars = (visible_chars >= 0) && (visible_chars_behavior == TextServer::VC_CHARS_AFTER_SHAPING);
|
|
bool trim_glyphs_ltr = (visible_chars >= 0) && ((visible_chars_behavior == TextServer::VC_GLYPHS_LTR) || ((visible_chars_behavior == TextServer::VC_GLYPHS_AUTO) && !rtl_layout));
|
|
bool trim_glyphs_rtl = (visible_chars >= 0) && ((visible_chars_behavior == TextServer::VC_GLYPHS_RTL) || ((visible_chars_behavior == TextServer::VC_GLYPHS_AUTO) && rtl_layout));
|
|
|
|
// Get real total height.
|
|
int total_glyphs = 0;
|
|
total_h = 0;
|
|
for (int64_t i = lines_skipped; i < last_line; i++) {
|
|
total_h += TS->shaped_text_get_size(lines_rid[i]).y + line_spacing;
|
|
total_glyphs += TS->shaped_text_get_glyph_count(lines_rid[i]) + TS->shaped_text_get_ellipsis_glyph_count(lines_rid[i]);
|
|
}
|
|
int visible_glyphs = total_glyphs * visible_ratio;
|
|
int processed_glyphs = 0;
|
|
total_h += style->get_margin(SIDE_TOP) + style->get_margin(SIDE_BOTTOM);
|
|
|
|
int vbegin = 0, vsep = 0;
|
|
if (lines_visible > 0) {
|
|
switch (vertical_alignment) {
|
|
case VERTICAL_ALIGNMENT_TOP: {
|
|
// Nothing.
|
|
} break;
|
|
case VERTICAL_ALIGNMENT_CENTER: {
|
|
vbegin = (size.y - (total_h - line_spacing)) / 2;
|
|
vsep = 0;
|
|
|
|
} break;
|
|
case VERTICAL_ALIGNMENT_BOTTOM: {
|
|
vbegin = size.y - (total_h - line_spacing);
|
|
vsep = 0;
|
|
|
|
} break;
|
|
case VERTICAL_ALIGNMENT_FILL: {
|
|
vbegin = 0;
|
|
if (lines_visible > 1) {
|
|
vsep = (size.y - (total_h - line_spacing)) / (lines_visible - 1);
|
|
} else {
|
|
vsep = 0;
|
|
}
|
|
|
|
} break;
|
|
}
|
|
}
|
|
|
|
Vector2 ofs;
|
|
ofs.y = style->get_offset().y + vbegin;
|
|
for (int i = lines_skipped; i < last_line; i++) {
|
|
Size2 line_size = TS->shaped_text_get_size(lines_rid[i]);
|
|
ofs.x = 0;
|
|
ofs.y += TS->shaped_text_get_ascent(lines_rid[i]);
|
|
switch (horizontal_alignment) {
|
|
case HORIZONTAL_ALIGNMENT_FILL:
|
|
if (rtl && autowrap_mode != TextServer::AUTOWRAP_OFF) {
|
|
ofs.x = int(size.width - style->get_margin(SIDE_RIGHT) - line_size.width);
|
|
} else {
|
|
ofs.x = style->get_offset().x;
|
|
}
|
|
break;
|
|
case HORIZONTAL_ALIGNMENT_LEFT: {
|
|
if (rtl_layout) {
|
|
ofs.x = int(size.width - style->get_margin(SIDE_RIGHT) - line_size.width);
|
|
} else {
|
|
ofs.x = style->get_offset().x;
|
|
}
|
|
} break;
|
|
case HORIZONTAL_ALIGNMENT_CENTER: {
|
|
ofs.x = int(size.width - line_size.width) / 2;
|
|
} break;
|
|
case HORIZONTAL_ALIGNMENT_RIGHT: {
|
|
if (rtl_layout) {
|
|
ofs.x = style->get_offset().x;
|
|
} else {
|
|
ofs.x = int(size.width - style->get_margin(SIDE_RIGHT) - line_size.width);
|
|
}
|
|
} break;
|
|
}
|
|
|
|
const Glyph *glyphs = TS->shaped_text_get_glyphs(lines_rid[i]);
|
|
int gl_size = TS->shaped_text_get_glyph_count(lines_rid[i]);
|
|
|
|
int ellipsis_pos = TS->shaped_text_get_ellipsis_pos(lines_rid[i]);
|
|
int trim_pos = TS->shaped_text_get_trim_pos(lines_rid[i]);
|
|
|
|
const Glyph *ellipsis_glyphs = TS->shaped_text_get_ellipsis_glyphs(lines_rid[i]);
|
|
int ellipsis_gl_size = TS->shaped_text_get_ellipsis_glyph_count(lines_rid[i]);
|
|
|
|
// Draw outline. Note: Do not merge this into the single loop with the main text, to prevent overlaps.
|
|
int processed_glyphs_ol = processed_glyphs;
|
|
if ((outline_size > 0 && font_outline_color.a != 0) || (font_shadow_color.a != 0)) {
|
|
Vector2 offset = ofs;
|
|
// Draw RTL ellipsis string when necessary.
|
|
if (rtl && ellipsis_pos >= 0) {
|
|
for (int gl_idx = ellipsis_gl_size - 1; gl_idx >= 0; gl_idx--) {
|
|
for (int j = 0; j < ellipsis_glyphs[gl_idx].repeat; j++) {
|
|
bool skip = (trim_chars && ellipsis_glyphs[gl_idx].end > visible_chars) || (trim_glyphs_ltr && (processed_glyphs_ol >= visible_glyphs)) || (trim_glyphs_rtl && (processed_glyphs_ol < total_glyphs - visible_glyphs));
|
|
//Draw glyph outlines and shadow.
|
|
if (!skip) {
|
|
draw_glyph_outline(ellipsis_glyphs[gl_idx], ci, font_color, font_shadow_color, font_outline_color, shadow_outline_size, outline_size, offset, shadow_ofs);
|
|
}
|
|
processed_glyphs_ol++;
|
|
offset.x += ellipsis_glyphs[gl_idx].advance;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Draw main text.
|
|
for (int j = 0; j < gl_size; j++) {
|
|
// Trim when necessary.
|
|
if (trim_pos >= 0) {
|
|
if (rtl) {
|
|
if (j < trim_pos) {
|
|
continue;
|
|
}
|
|
} else {
|
|
if (j >= trim_pos) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
for (int k = 0; k < glyphs[j].repeat; k++) {
|
|
bool skip = (trim_chars && glyphs[j].end > visible_chars) || (trim_glyphs_ltr && (processed_glyphs_ol >= visible_glyphs)) || (trim_glyphs_rtl && (processed_glyphs_ol < total_glyphs - visible_glyphs));
|
|
|
|
// Draw glyph outlines and shadow.
|
|
if (!skip) {
|
|
draw_glyph_outline(glyphs[j], ci, font_color, font_shadow_color, font_outline_color, shadow_outline_size, outline_size, offset, shadow_ofs);
|
|
}
|
|
processed_glyphs_ol++;
|
|
offset.x += glyphs[j].advance;
|
|
}
|
|
}
|
|
// Draw LTR ellipsis string when necessary.
|
|
if (!rtl && ellipsis_pos >= 0) {
|
|
for (int gl_idx = 0; gl_idx < ellipsis_gl_size; gl_idx++) {
|
|
for (int j = 0; j < ellipsis_glyphs[gl_idx].repeat; j++) {
|
|
bool skip = (trim_chars && ellipsis_glyphs[gl_idx].end > visible_chars) || (trim_glyphs_ltr && (processed_glyphs_ol >= visible_glyphs)) || (trim_glyphs_rtl && (processed_glyphs_ol < total_glyphs - visible_glyphs));
|
|
//Draw glyph outlines and shadow.
|
|
if (!skip) {
|
|
draw_glyph_outline(ellipsis_glyphs[gl_idx], ci, font_color, font_shadow_color, font_outline_color, shadow_outline_size, outline_size, offset, shadow_ofs);
|
|
}
|
|
processed_glyphs_ol++;
|
|
offset.x += ellipsis_glyphs[gl_idx].advance;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Draw main text. Note: Do not merge this into the single loop with the outline, to prevent overlaps.
|
|
|
|
// Draw RTL ellipsis string when necessary.
|
|
if (rtl && ellipsis_pos >= 0) {
|
|
for (int gl_idx = ellipsis_gl_size - 1; gl_idx >= 0; gl_idx--) {
|
|
for (int j = 0; j < ellipsis_glyphs[gl_idx].repeat; j++) {
|
|
bool skip = (trim_chars && ellipsis_glyphs[gl_idx].end > visible_chars) || (trim_glyphs_ltr && (processed_glyphs >= visible_glyphs)) || (trim_glyphs_rtl && (processed_glyphs < total_glyphs - visible_glyphs));
|
|
//Draw glyph outlines and shadow.
|
|
if (!skip) {
|
|
draw_glyph(ellipsis_glyphs[gl_idx], ci, font_color, ofs);
|
|
}
|
|
processed_glyphs++;
|
|
ofs.x += ellipsis_glyphs[gl_idx].advance;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Draw main text.
|
|
for (int j = 0; j < gl_size; j++) {
|
|
// Trim when necessary.
|
|
if (trim_pos >= 0) {
|
|
if (rtl) {
|
|
if (j < trim_pos) {
|
|
continue;
|
|
}
|
|
} else {
|
|
if (j >= trim_pos) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
for (int k = 0; k < glyphs[j].repeat; k++) {
|
|
bool skip = (trim_chars && glyphs[j].end > visible_chars) || (trim_glyphs_ltr && (processed_glyphs >= visible_glyphs)) || (trim_glyphs_rtl && (processed_glyphs < total_glyphs - visible_glyphs));
|
|
|
|
// Draw glyph outlines and shadow.
|
|
if (!skip) {
|
|
draw_glyph(glyphs[j], ci, font_color, ofs);
|
|
}
|
|
processed_glyphs++;
|
|
ofs.x += glyphs[j].advance;
|
|
}
|
|
}
|
|
// Draw LTR ellipsis string when necessary.
|
|
if (!rtl && ellipsis_pos >= 0) {
|
|
for (int gl_idx = 0; gl_idx < ellipsis_gl_size; gl_idx++) {
|
|
for (int j = 0; j < ellipsis_glyphs[gl_idx].repeat; j++) {
|
|
bool skip = (trim_chars && ellipsis_glyphs[gl_idx].end > visible_chars) || (trim_glyphs_ltr && (processed_glyphs >= visible_glyphs)) || (trim_glyphs_rtl && (processed_glyphs < total_glyphs - visible_glyphs));
|
|
//Draw glyph outlines and shadow.
|
|
if (!skip) {
|
|
draw_glyph(ellipsis_glyphs[gl_idx], ci, font_color, ofs);
|
|
}
|
|
processed_glyphs++;
|
|
ofs.x += ellipsis_glyphs[gl_idx].advance;
|
|
}
|
|
}
|
|
}
|
|
ofs.y += TS->shaped_text_get_descent(lines_rid[i]) + vsep + line_spacing;
|
|
}
|
|
|
|
draw_pending = false;
|
|
} break;
|
|
|
|
case NOTIFICATION_THEME_CHANGED: {
|
|
font_dirty = true;
|
|
queue_redraw();
|
|
} break;
|
|
|
|
case NOTIFICATION_RESIZED: {
|
|
lines_dirty = true;
|
|
} break;
|
|
}
|
|
}
|
|
|
|
Size2 Label::get_minimum_size() const {
|
|
// don't want to mutable everything
|
|
if (dirty || font_dirty || lines_dirty) {
|
|
const_cast<Label *>(this)->_shape();
|
|
}
|
|
|
|
Size2 min_size = minsize;
|
|
|
|
const Ref<Font> &font = (settings.is_valid() && settings->get_font().is_valid()) ? settings->get_font() : theme_cache.font;
|
|
int font_size = settings.is_valid() ? settings->get_font_size() : theme_cache.font_size;
|
|
|
|
min_size.height = MAX(min_size.height, font->get_height(font_size) + font->get_spacing(TextServer::SPACING_TOP) + font->get_spacing(TextServer::SPACING_BOTTOM));
|
|
|
|
Size2 min_style = theme_cache.normal_style->get_minimum_size();
|
|
if (autowrap_mode != TextServer::AUTOWRAP_OFF) {
|
|
return Size2(1, (clip || overrun_behavior != TextServer::OVERRUN_NO_TRIMMING) ? 1 : min_size.height) + min_style;
|
|
} else {
|
|
if (clip || overrun_behavior != TextServer::OVERRUN_NO_TRIMMING) {
|
|
min_size.width = 1;
|
|
}
|
|
return min_size + min_style;
|
|
}
|
|
}
|
|
|
|
int Label::get_line_count() const {
|
|
if (!is_inside_tree()) {
|
|
return 1;
|
|
}
|
|
if (dirty || font_dirty || lines_dirty) {
|
|
const_cast<Label *>(this)->_shape();
|
|
}
|
|
|
|
return lines_rid.size();
|
|
}
|
|
|
|
int Label::get_visible_line_count() const {
|
|
Ref<StyleBox> style = theme_cache.normal_style;
|
|
int line_spacing = settings.is_valid() ? settings->get_line_spacing() : theme_cache.line_spacing;
|
|
int lines_visible = 0;
|
|
float total_h = 0.0;
|
|
for (int64_t i = lines_skipped; i < lines_rid.size(); i++) {
|
|
total_h += TS->shaped_text_get_size(lines_rid[i]).y + line_spacing;
|
|
if (total_h > (get_size().height - style->get_minimum_size().height + line_spacing)) {
|
|
break;
|
|
}
|
|
lines_visible++;
|
|
}
|
|
|
|
if (lines_visible > lines_rid.size()) {
|
|
lines_visible = lines_rid.size();
|
|
}
|
|
|
|
if (max_lines_visible >= 0 && lines_visible > max_lines_visible) {
|
|
lines_visible = max_lines_visible;
|
|
}
|
|
|
|
return lines_visible;
|
|
}
|
|
|
|
void Label::set_horizontal_alignment(HorizontalAlignment p_alignment) {
|
|
ERR_FAIL_INDEX((int)p_alignment, 4);
|
|
if (horizontal_alignment == p_alignment) {
|
|
return;
|
|
}
|
|
|
|
if (horizontal_alignment == HORIZONTAL_ALIGNMENT_FILL || p_alignment == HORIZONTAL_ALIGNMENT_FILL) {
|
|
lines_dirty = true; // Reshape lines.
|
|
}
|
|
horizontal_alignment = p_alignment;
|
|
|
|
queue_redraw();
|
|
}
|
|
|
|
HorizontalAlignment Label::get_horizontal_alignment() const {
|
|
return horizontal_alignment;
|
|
}
|
|
|
|
void Label::set_vertical_alignment(VerticalAlignment p_alignment) {
|
|
ERR_FAIL_INDEX((int)p_alignment, 4);
|
|
|
|
if (vertical_alignment == p_alignment) {
|
|
return;
|
|
}
|
|
|
|
vertical_alignment = p_alignment;
|
|
queue_redraw();
|
|
}
|
|
|
|
VerticalAlignment Label::get_vertical_alignment() const {
|
|
return vertical_alignment;
|
|
}
|
|
|
|
void Label::set_text(const String &p_string) {
|
|
if (text == p_string) {
|
|
return;
|
|
}
|
|
text = p_string;
|
|
xl_text = atr(p_string);
|
|
dirty = true;
|
|
if (visible_ratio < 1) {
|
|
visible_chars = get_total_character_count() * visible_ratio;
|
|
}
|
|
queue_redraw();
|
|
update_minimum_size();
|
|
update_configuration_warnings();
|
|
}
|
|
|
|
void Label::_invalidate() {
|
|
font_dirty = true;
|
|
queue_redraw();
|
|
}
|
|
|
|
void Label::set_label_settings(const Ref<LabelSettings> &p_settings) {
|
|
if (settings != p_settings) {
|
|
if (settings.is_valid()) {
|
|
settings->disconnect(CoreStringNames::get_singleton()->changed, callable_mp(this, &Label::_invalidate));
|
|
}
|
|
settings = p_settings;
|
|
if (settings.is_valid()) {
|
|
settings->connect(CoreStringNames::get_singleton()->changed, callable_mp(this, &Label::_invalidate), CONNECT_REFERENCE_COUNTED);
|
|
}
|
|
_invalidate();
|
|
}
|
|
}
|
|
|
|
Ref<LabelSettings> Label::get_label_settings() const {
|
|
return settings;
|
|
}
|
|
|
|
void Label::set_text_direction(Control::TextDirection p_text_direction) {
|
|
ERR_FAIL_COND((int)p_text_direction < -1 || (int)p_text_direction > 3);
|
|
if (text_direction != p_text_direction) {
|
|
text_direction = p_text_direction;
|
|
font_dirty = true;
|
|
queue_redraw();
|
|
}
|
|
}
|
|
|
|
void Label::set_structured_text_bidi_override(TextServer::StructuredTextParser p_parser) {
|
|
if (st_parser != p_parser) {
|
|
st_parser = p_parser;
|
|
dirty = true;
|
|
queue_redraw();
|
|
}
|
|
}
|
|
|
|
TextServer::StructuredTextParser Label::get_structured_text_bidi_override() const {
|
|
return st_parser;
|
|
}
|
|
|
|
void Label::set_structured_text_bidi_override_options(Array p_args) {
|
|
if (st_args == p_args) {
|
|
return;
|
|
}
|
|
|
|
st_args = p_args;
|
|
dirty = true;
|
|
queue_redraw();
|
|
}
|
|
|
|
Array Label::get_structured_text_bidi_override_options() const {
|
|
return st_args;
|
|
}
|
|
|
|
Control::TextDirection Label::get_text_direction() const {
|
|
return text_direction;
|
|
}
|
|
|
|
void Label::set_language(const String &p_language) {
|
|
if (language != p_language) {
|
|
language = p_language;
|
|
dirty = true;
|
|
queue_redraw();
|
|
}
|
|
}
|
|
|
|
String Label::get_language() const {
|
|
return language;
|
|
}
|
|
|
|
void Label::set_clip_text(bool p_clip) {
|
|
if (clip == p_clip) {
|
|
return;
|
|
}
|
|
|
|
clip = p_clip;
|
|
queue_redraw();
|
|
update_minimum_size();
|
|
}
|
|
|
|
bool Label::is_clipping_text() const {
|
|
return clip;
|
|
}
|
|
|
|
void Label::set_text_overrun_behavior(TextServer::OverrunBehavior p_behavior) {
|
|
if (overrun_behavior == p_behavior) {
|
|
return;
|
|
}
|
|
|
|
overrun_behavior = p_behavior;
|
|
lines_dirty = true;
|
|
queue_redraw();
|
|
if (clip || overrun_behavior != TextServer::OVERRUN_NO_TRIMMING) {
|
|
update_minimum_size();
|
|
}
|
|
}
|
|
|
|
TextServer::OverrunBehavior Label::get_text_overrun_behavior() const {
|
|
return overrun_behavior;
|
|
}
|
|
|
|
String Label::get_text() const {
|
|
return text;
|
|
}
|
|
|
|
void Label::set_visible_characters(int p_amount) {
|
|
if (visible_chars != p_amount) {
|
|
visible_chars = p_amount;
|
|
if (get_total_character_count() > 0) {
|
|
visible_ratio = (float)p_amount / (float)get_total_character_count();
|
|
} else {
|
|
visible_ratio = 1.0;
|
|
}
|
|
if (visible_chars_behavior == TextServer::VC_CHARS_BEFORE_SHAPING) {
|
|
dirty = true;
|
|
}
|
|
queue_redraw();
|
|
}
|
|
}
|
|
|
|
int Label::get_visible_characters() const {
|
|
return visible_chars;
|
|
}
|
|
|
|
void Label::set_visible_ratio(float p_ratio) {
|
|
if (visible_ratio != p_ratio) {
|
|
if (p_ratio >= 1.0) {
|
|
visible_chars = -1;
|
|
visible_ratio = 1.0;
|
|
} else if (p_ratio < 0.0) {
|
|
visible_chars = 0;
|
|
visible_ratio = 0.0;
|
|
} else {
|
|
visible_chars = get_total_character_count() * p_ratio;
|
|
visible_ratio = p_ratio;
|
|
}
|
|
|
|
if (visible_chars_behavior == TextServer::VC_CHARS_BEFORE_SHAPING) {
|
|
dirty = true;
|
|
}
|
|
queue_redraw();
|
|
}
|
|
}
|
|
|
|
float Label::get_visible_ratio() const {
|
|
return visible_ratio;
|
|
}
|
|
|
|
TextServer::VisibleCharactersBehavior Label::get_visible_characters_behavior() const {
|
|
return visible_chars_behavior;
|
|
}
|
|
|
|
void Label::set_visible_characters_behavior(TextServer::VisibleCharactersBehavior p_behavior) {
|
|
if (visible_chars_behavior != p_behavior) {
|
|
visible_chars_behavior = p_behavior;
|
|
dirty = true;
|
|
queue_redraw();
|
|
}
|
|
}
|
|
|
|
void Label::set_lines_skipped(int p_lines) {
|
|
ERR_FAIL_COND(p_lines < 0);
|
|
|
|
if (lines_skipped == p_lines) {
|
|
return;
|
|
}
|
|
|
|
lines_skipped = p_lines;
|
|
lines_dirty = true;
|
|
queue_redraw();
|
|
}
|
|
|
|
int Label::get_lines_skipped() const {
|
|
return lines_skipped;
|
|
}
|
|
|
|
void Label::set_max_lines_visible(int p_lines) {
|
|
if (max_lines_visible == p_lines) {
|
|
return;
|
|
}
|
|
|
|
max_lines_visible = p_lines;
|
|
lines_dirty = true;
|
|
queue_redraw();
|
|
}
|
|
|
|
int Label::get_max_lines_visible() const {
|
|
return max_lines_visible;
|
|
}
|
|
|
|
int Label::get_total_character_count() const {
|
|
if (dirty || font_dirty || lines_dirty) {
|
|
const_cast<Label *>(this)->_shape();
|
|
}
|
|
|
|
return xl_text.length();
|
|
}
|
|
|
|
void Label::_bind_methods() {
|
|
ClassDB::bind_method(D_METHOD("set_horizontal_alignment", "alignment"), &Label::set_horizontal_alignment);
|
|
ClassDB::bind_method(D_METHOD("get_horizontal_alignment"), &Label::get_horizontal_alignment);
|
|
ClassDB::bind_method(D_METHOD("set_vertical_alignment", "alignment"), &Label::set_vertical_alignment);
|
|
ClassDB::bind_method(D_METHOD("get_vertical_alignment"), &Label::get_vertical_alignment);
|
|
ClassDB::bind_method(D_METHOD("set_text", "text"), &Label::set_text);
|
|
ClassDB::bind_method(D_METHOD("get_text"), &Label::get_text);
|
|
ClassDB::bind_method(D_METHOD("set_label_settings", "settings"), &Label::set_label_settings);
|
|
ClassDB::bind_method(D_METHOD("get_label_settings"), &Label::get_label_settings);
|
|
ClassDB::bind_method(D_METHOD("set_text_direction", "direction"), &Label::set_text_direction);
|
|
ClassDB::bind_method(D_METHOD("get_text_direction"), &Label::get_text_direction);
|
|
ClassDB::bind_method(D_METHOD("set_language", "language"), &Label::set_language);
|
|
ClassDB::bind_method(D_METHOD("get_language"), &Label::get_language);
|
|
ClassDB::bind_method(D_METHOD("set_autowrap_mode", "autowrap_mode"), &Label::set_autowrap_mode);
|
|
ClassDB::bind_method(D_METHOD("get_autowrap_mode"), &Label::get_autowrap_mode);
|
|
ClassDB::bind_method(D_METHOD("set_clip_text", "enable"), &Label::set_clip_text);
|
|
ClassDB::bind_method(D_METHOD("is_clipping_text"), &Label::is_clipping_text);
|
|
ClassDB::bind_method(D_METHOD("set_text_overrun_behavior", "overrun_behavior"), &Label::set_text_overrun_behavior);
|
|
ClassDB::bind_method(D_METHOD("get_text_overrun_behavior"), &Label::get_text_overrun_behavior);
|
|
ClassDB::bind_method(D_METHOD("set_uppercase", "enable"), &Label::set_uppercase);
|
|
ClassDB::bind_method(D_METHOD("is_uppercase"), &Label::is_uppercase);
|
|
ClassDB::bind_method(D_METHOD("get_line_height", "line"), &Label::get_line_height, DEFVAL(-1));
|
|
ClassDB::bind_method(D_METHOD("get_line_count"), &Label::get_line_count);
|
|
ClassDB::bind_method(D_METHOD("get_visible_line_count"), &Label::get_visible_line_count);
|
|
ClassDB::bind_method(D_METHOD("get_total_character_count"), &Label::get_total_character_count);
|
|
ClassDB::bind_method(D_METHOD("set_visible_characters", "amount"), &Label::set_visible_characters);
|
|
ClassDB::bind_method(D_METHOD("get_visible_characters"), &Label::get_visible_characters);
|
|
ClassDB::bind_method(D_METHOD("get_visible_characters_behavior"), &Label::get_visible_characters_behavior);
|
|
ClassDB::bind_method(D_METHOD("set_visible_characters_behavior", "behavior"), &Label::set_visible_characters_behavior);
|
|
ClassDB::bind_method(D_METHOD("set_visible_ratio", "ratio"), &Label::set_visible_ratio);
|
|
ClassDB::bind_method(D_METHOD("get_visible_ratio"), &Label::get_visible_ratio);
|
|
ClassDB::bind_method(D_METHOD("set_lines_skipped", "lines_skipped"), &Label::set_lines_skipped);
|
|
ClassDB::bind_method(D_METHOD("get_lines_skipped"), &Label::get_lines_skipped);
|
|
ClassDB::bind_method(D_METHOD("set_max_lines_visible", "lines_visible"), &Label::set_max_lines_visible);
|
|
ClassDB::bind_method(D_METHOD("get_max_lines_visible"), &Label::get_max_lines_visible);
|
|
ClassDB::bind_method(D_METHOD("set_structured_text_bidi_override", "parser"), &Label::set_structured_text_bidi_override);
|
|
ClassDB::bind_method(D_METHOD("get_structured_text_bidi_override"), &Label::get_structured_text_bidi_override);
|
|
ClassDB::bind_method(D_METHOD("set_structured_text_bidi_override_options", "args"), &Label::set_structured_text_bidi_override_options);
|
|
ClassDB::bind_method(D_METHOD("get_structured_text_bidi_override_options"), &Label::get_structured_text_bidi_override_options);
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::STRING, "text", PROPERTY_HINT_MULTILINE_TEXT), "set_text", "get_text");
|
|
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "label_settings", PROPERTY_HINT_RESOURCE_TYPE, "LabelSettings"), "set_label_settings", "get_label_settings");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "horizontal_alignment", PROPERTY_HINT_ENUM, "Left,Center,Right,Fill"), "set_horizontal_alignment", "get_horizontal_alignment");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "vertical_alignment", PROPERTY_HINT_ENUM, "Top,Center,Bottom,Fill"), "set_vertical_alignment", "get_vertical_alignment");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "autowrap_mode", PROPERTY_HINT_ENUM, "Off,Arbitrary,Word,Word (Smart)"), "set_autowrap_mode", "get_autowrap_mode");
|
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "clip_text"), "set_clip_text", "is_clipping_text");
|
|
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");
|
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "uppercase"), "set_uppercase", "is_uppercase");
|
|
|
|
ADD_GROUP("Displayed Text", "");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "lines_skipped", PROPERTY_HINT_RANGE, "0,999,1"), "set_lines_skipped", "get_lines_skipped");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "max_lines_visible", PROPERTY_HINT_RANGE, "-1,999,1"), "set_max_lines_visible", "get_max_lines_visible");
|
|
// Note: "visible_characters" and "visible_ratio" should be set after "text" to be correctly applied.
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "visible_characters", PROPERTY_HINT_RANGE, "-1,128000,1"), "set_visible_characters", "get_visible_characters");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "visible_characters_behavior", PROPERTY_HINT_ENUM, "Characters Before Shaping,Characters After Shaping,Glyphs (Layout Direction),Glyphs (Left-to-Right),Glyphs (Right-to-Left)"), "set_visible_characters_behavior", "get_visible_characters_behavior");
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "visible_ratio", PROPERTY_HINT_RANGE, "0,1,0.001"), "set_visible_ratio", "get_visible_ratio");
|
|
|
|
ADD_GROUP("BiDi", "");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "text_direction", PROPERTY_HINT_ENUM, "Auto,Left-to-Right,Right-to-Left,Inherited"), "set_text_direction", "get_text_direction");
|
|
ADD_PROPERTY(PropertyInfo(Variant::STRING, "language", PROPERTY_HINT_LOCALE_ID, ""), "set_language", "get_language");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "structured_text_bidi_override", PROPERTY_HINT_ENUM, "Default,URI,File,Email,List,None,Custom"), "set_structured_text_bidi_override", "get_structured_text_bidi_override");
|
|
ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "structured_text_bidi_override_options"), "set_structured_text_bidi_override_options", "get_structured_text_bidi_override_options");
|
|
}
|
|
|
|
Label::Label(const String &p_text) {
|
|
text_rid = TS->create_shaped_text();
|
|
|
|
set_mouse_filter(MOUSE_FILTER_IGNORE);
|
|
set_text(p_text);
|
|
set_v_size_flags(SIZE_SHRINK_CENTER);
|
|
}
|
|
|
|
Label::~Label() {
|
|
for (int i = 0; i < lines_rid.size(); i++) {
|
|
TS->free_rid(lines_rid[i]);
|
|
}
|
|
lines_rid.clear();
|
|
TS->free_rid(text_rid);
|
|
}
|