605 lines
19 KiB
C++
605 lines
19 KiB
C++
/**************************************************************************/
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/* option_button.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 "option_button.h"
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#include "core/os/keyboard.h"
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#include "core/string/print_string.h"
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#include "scene/theme/theme_db.h"
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static const int NONE_SELECTED = -1;
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void OptionButton::shortcut_input(const Ref<InputEvent> &p_event) {
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ERR_FAIL_COND(p_event.is_null());
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if (disable_shortcuts) {
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return;
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}
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if (p_event->is_pressed() && !p_event->is_echo() && !is_disabled() && is_visible_in_tree() && popup->activate_item_by_event(p_event, false)) {
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accept_event();
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return;
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}
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Button::shortcut_input(p_event);
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}
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Size2 OptionButton::get_minimum_size() const {
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Size2 minsize;
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if (fit_to_longest_item) {
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minsize = _cached_size;
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} else {
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minsize = Button::get_minimum_size();
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}
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if (has_theme_icon(SNAME("arrow"))) {
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const Size2 padding = _get_largest_stylebox_size();
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const Size2 arrow_size = theme_cache.arrow_icon->get_size();
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Size2 content_size = minsize - padding;
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content_size.width += arrow_size.width + MAX(0, theme_cache.h_separation);
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content_size.height = MAX(content_size.height, arrow_size.height);
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minsize = content_size + padding;
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}
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return minsize;
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}
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void OptionButton::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_POSTINITIALIZE: {
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_refresh_size_cache();
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if (has_theme_icon(SNAME("arrow"))) {
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if (is_layout_rtl()) {
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_set_internal_margin(SIDE_LEFT, theme_cache.arrow_icon->get_width());
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} else {
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_set_internal_margin(SIDE_RIGHT, theme_cache.arrow_icon->get_width());
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}
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}
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} break;
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case NOTIFICATION_DRAW: {
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if (!has_theme_icon(SNAME("arrow"))) {
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return;
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}
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RID ci = get_canvas_item();
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Color clr = Color(1, 1, 1);
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if (theme_cache.modulate_arrow) {
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switch (get_draw_mode()) {
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case DRAW_PRESSED:
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clr = theme_cache.font_pressed_color;
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break;
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case DRAW_HOVER:
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clr = theme_cache.font_hover_color;
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break;
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case DRAW_HOVER_PRESSED:
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clr = theme_cache.font_hover_pressed_color;
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break;
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case DRAW_DISABLED:
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clr = theme_cache.font_disabled_color;
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break;
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default:
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if (has_focus()) {
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clr = theme_cache.font_focus_color;
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} else {
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clr = theme_cache.font_color;
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}
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}
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}
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Size2 size = get_size();
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Point2 ofs;
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if (is_layout_rtl()) {
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ofs = Point2(theme_cache.arrow_margin, int(Math::abs((size.height - theme_cache.arrow_icon->get_height()) / 2)));
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} else {
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ofs = Point2(size.width - theme_cache.arrow_icon->get_width() - theme_cache.arrow_margin, int(Math::abs((size.height - theme_cache.arrow_icon->get_height()) / 2)));
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}
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theme_cache.arrow_icon->draw(ci, ofs, clr);
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} break;
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case NOTIFICATION_TRANSLATION_CHANGED:
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case NOTIFICATION_LAYOUT_DIRECTION_CHANGED: {
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popup->set_layout_direction((Window::LayoutDirection)get_layout_direction());
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[[fallthrough]];
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}
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case NOTIFICATION_THEME_CHANGED: {
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if (has_theme_icon(SNAME("arrow"))) {
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if (is_layout_rtl()) {
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_set_internal_margin(SIDE_LEFT, theme_cache.arrow_icon->get_width());
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_set_internal_margin(SIDE_RIGHT, 0.f);
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} else {
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_set_internal_margin(SIDE_LEFT, 0.f);
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_set_internal_margin(SIDE_RIGHT, theme_cache.arrow_icon->get_width());
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}
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}
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_refresh_size_cache();
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} break;
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case NOTIFICATION_VISIBILITY_CHANGED: {
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if (!is_visible_in_tree()) {
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popup->hide();
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}
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} break;
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}
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}
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bool OptionButton::_set(const StringName &p_name, const Variant &p_value) {
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int index;
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const String sname = p_name;
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if (property_helper.is_property_valid(sname, &index)) {
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bool valid;
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popup->set(sname.trim_prefix("popup/"), p_value, &valid);
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if (index == current) {
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// Force refreshing currently displayed item.
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current = NONE_SELECTED;
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_select(index, false);
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}
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const String property = sname.get_slice("/", 2);
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if (property == "text" || property == "icon") {
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_queue_update_size_cache();
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}
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return valid;
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}
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return false;
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}
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void OptionButton::_focused(int p_which) {
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emit_signal(SNAME("item_focused"), p_which);
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}
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void OptionButton::_selected(int p_which) {
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_select(p_which, true);
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}
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void OptionButton::pressed() {
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if (popup->is_visible()) {
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popup->hide();
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return;
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}
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show_popup();
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}
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void OptionButton::add_icon_item(const Ref<Texture2D> &p_icon, const String &p_label, int p_id) {
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bool first_selectable = !has_selectable_items();
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popup->add_icon_radio_check_item(p_icon, p_label, p_id);
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if (first_selectable) {
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select(get_item_count() - 1);
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}
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_queue_update_size_cache();
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}
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void OptionButton::add_item(const String &p_label, int p_id) {
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bool first_selectable = !has_selectable_items();
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popup->add_radio_check_item(p_label, p_id);
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if (first_selectable) {
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select(get_item_count() - 1);
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}
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_queue_update_size_cache();
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}
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void OptionButton::set_item_text(int p_idx, const String &p_text) {
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popup->set_item_text(p_idx, p_text);
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if (current == p_idx) {
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set_text(p_text);
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}
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_queue_update_size_cache();
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}
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void OptionButton::set_item_icon(int p_idx, const Ref<Texture2D> &p_icon) {
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popup->set_item_icon(p_idx, p_icon);
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if (current == p_idx) {
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set_icon(p_icon);
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}
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_queue_update_size_cache();
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}
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void OptionButton::set_item_id(int p_idx, int p_id) {
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popup->set_item_id(p_idx, p_id);
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}
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void OptionButton::set_item_metadata(int p_idx, const Variant &p_metadata) {
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popup->set_item_metadata(p_idx, p_metadata);
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}
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void OptionButton::set_item_tooltip(int p_idx, const String &p_tooltip) {
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popup->set_item_tooltip(p_idx, p_tooltip);
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}
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void OptionButton::set_item_disabled(int p_idx, bool p_disabled) {
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popup->set_item_disabled(p_idx, p_disabled);
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}
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String OptionButton::get_item_text(int p_idx) const {
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return popup->get_item_text(p_idx);
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}
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Ref<Texture2D> OptionButton::get_item_icon(int p_idx) const {
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return popup->get_item_icon(p_idx);
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}
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int OptionButton::get_item_id(int p_idx) const {
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if (p_idx == NONE_SELECTED) {
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return NONE_SELECTED;
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}
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return popup->get_item_id(p_idx);
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}
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int OptionButton::get_item_index(int p_id) const {
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return popup->get_item_index(p_id);
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}
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Variant OptionButton::get_item_metadata(int p_idx) const {
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return popup->get_item_metadata(p_idx);
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}
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String OptionButton::get_item_tooltip(int p_idx) const {
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return popup->get_item_tooltip(p_idx);
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}
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bool OptionButton::is_item_disabled(int p_idx) const {
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return popup->is_item_disabled(p_idx);
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}
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bool OptionButton::is_item_separator(int p_idx) const {
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return popup->is_item_separator(p_idx);
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}
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void OptionButton::set_item_count(int p_count) {
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ERR_FAIL_COND(p_count < 0);
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int count_old = get_item_count();
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if (p_count == count_old) {
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return;
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}
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popup->set_item_count(p_count);
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if (p_count > count_old) {
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for (int i = count_old; i < p_count; i++) {
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popup->set_item_as_radio_checkable(i, true);
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}
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}
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if (!initialized) {
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if (queued_current != current) {
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current = queued_current;
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}
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initialized = true;
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}
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_refresh_size_cache();
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notify_property_list_changed();
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}
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bool OptionButton::has_selectable_items() const {
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for (int i = 0; i < get_item_count(); i++) {
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if (!is_item_disabled(i) && !is_item_separator(i)) {
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return true;
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}
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}
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return false;
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}
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int OptionButton::get_selectable_item(bool p_from_last) const {
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if (!p_from_last) {
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for (int i = 0; i < get_item_count(); i++) {
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if (!is_item_disabled(i) && !is_item_separator(i)) {
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return i;
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}
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}
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} else {
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for (int i = get_item_count() - 1; i >= 0; i--) {
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if (!is_item_disabled(i) && !is_item_separator(i)) {
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return i;
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}
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}
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}
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return -1;
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}
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int OptionButton::get_item_count() const {
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return popup->get_item_count();
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}
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void OptionButton::set_fit_to_longest_item(bool p_fit) {
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if (p_fit == fit_to_longest_item) {
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return;
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}
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fit_to_longest_item = p_fit;
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_refresh_size_cache();
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}
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bool OptionButton::is_fit_to_longest_item() const {
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return fit_to_longest_item;
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}
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void OptionButton::set_allow_reselect(bool p_allow) {
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allow_reselect = p_allow;
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}
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bool OptionButton::get_allow_reselect() const {
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return allow_reselect;
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}
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void OptionButton::add_separator(const String &p_text) {
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popup->add_separator(p_text);
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}
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void OptionButton::clear() {
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popup->clear();
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set_text("");
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current = NONE_SELECTED;
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_refresh_size_cache();
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}
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void OptionButton::_select(int p_which, bool p_emit) {
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if (p_which == current && !allow_reselect) {
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return;
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}
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if (p_which == NONE_SELECTED) {
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for (int i = 0; i < popup->get_item_count(); i++) {
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popup->set_item_checked(i, false);
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}
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current = NONE_SELECTED;
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set_text("");
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set_icon(nullptr);
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} else {
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ERR_FAIL_INDEX(p_which, popup->get_item_count());
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for (int i = 0; i < popup->get_item_count(); i++) {
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popup->set_item_checked(i, i == p_which);
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}
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current = p_which;
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set_text(popup->get_item_text(current));
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set_icon(popup->get_item_icon(current));
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}
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if (is_inside_tree() && p_emit) {
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emit_signal(SNAME("item_selected"), current);
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}
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}
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void OptionButton::_select_int(int p_which) {
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if (p_which < NONE_SELECTED) {
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return;
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}
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if (p_which >= popup->get_item_count()) {
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if (!initialized) {
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queued_current = p_which;
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}
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return;
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}
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_select(p_which, false);
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}
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void OptionButton::_refresh_size_cache() {
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cache_refresh_pending = false;
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if (fit_to_longest_item) {
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_cached_size = theme_cache.normal->get_minimum_size();
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for (int i = 0; i < get_item_count(); i++) {
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_cached_size = _cached_size.max(get_minimum_size_for_text_and_icon(popup->get_item_xl_text(i), get_item_icon(i)));
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}
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}
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update_minimum_size();
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}
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void OptionButton::_queue_update_size_cache() {
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if (cache_refresh_pending) {
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return;
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}
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cache_refresh_pending = true;
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callable_mp(this, &OptionButton::_refresh_size_cache).call_deferred();
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}
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void OptionButton::select(int p_idx) {
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_select(p_idx, false);
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}
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int OptionButton::get_selected() const {
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return current;
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}
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int OptionButton::get_selected_id() const {
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return get_item_id(current);
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}
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Variant OptionButton::get_selected_metadata() const {
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int idx = get_selected();
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if (idx < 0) {
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return Variant();
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}
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return get_item_metadata(current);
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}
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void OptionButton::remove_item(int p_idx) {
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popup->remove_item(p_idx);
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if (current == p_idx) {
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_select(NONE_SELECTED);
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}
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_queue_update_size_cache();
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}
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PopupMenu *OptionButton::get_popup() const {
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return popup;
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}
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void OptionButton::show_popup() {
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if (!get_viewport()) {
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return;
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}
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Rect2 rect = get_screen_rect();
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rect.position.y += rect.size.height;
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rect.size.height = 0;
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popup->set_position(rect.position);
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popup->set_size(rect.size);
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// If not triggered by the mouse, start the popup with the checked item (or the first enabled one) focused.
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if (current != NONE_SELECTED && !popup->is_item_disabled(current)) {
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if (!_was_pressed_by_mouse()) {
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popup->set_focused_item(current);
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} else {
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popup->scroll_to_item(current);
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}
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} else {
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for (int i = 0; i < popup->get_item_count(); i++) {
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if (!popup->is_item_disabled(i)) {
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if (!_was_pressed_by_mouse()) {
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popup->set_focused_item(i);
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} else {
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popup->scroll_to_item(i);
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}
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break;
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}
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}
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}
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popup->popup();
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}
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void OptionButton::_validate_property(PropertyInfo &p_property) const {
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if (p_property.name == "text" || p_property.name == "icon") {
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p_property.usage = PROPERTY_USAGE_NONE;
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}
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}
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void OptionButton::_bind_methods() {
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ClassDB::bind_method(D_METHOD("add_item", "label", "id"), &OptionButton::add_item, DEFVAL(-1));
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ClassDB::bind_method(D_METHOD("add_icon_item", "texture", "label", "id"), &OptionButton::add_icon_item, DEFVAL(-1));
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ClassDB::bind_method(D_METHOD("set_item_text", "idx", "text"), &OptionButton::set_item_text);
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ClassDB::bind_method(D_METHOD("set_item_icon", "idx", "texture"), &OptionButton::set_item_icon);
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ClassDB::bind_method(D_METHOD("set_item_disabled", "idx", "disabled"), &OptionButton::set_item_disabled);
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ClassDB::bind_method(D_METHOD("set_item_id", "idx", "id"), &OptionButton::set_item_id);
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ClassDB::bind_method(D_METHOD("set_item_metadata", "idx", "metadata"), &OptionButton::set_item_metadata);
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ClassDB::bind_method(D_METHOD("set_item_tooltip", "idx", "tooltip"), &OptionButton::set_item_tooltip);
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ClassDB::bind_method(D_METHOD("get_item_text", "idx"), &OptionButton::get_item_text);
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ClassDB::bind_method(D_METHOD("get_item_icon", "idx"), &OptionButton::get_item_icon);
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ClassDB::bind_method(D_METHOD("get_item_id", "idx"), &OptionButton::get_item_id);
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ClassDB::bind_method(D_METHOD("get_item_index", "id"), &OptionButton::get_item_index);
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ClassDB::bind_method(D_METHOD("get_item_metadata", "idx"), &OptionButton::get_item_metadata);
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ClassDB::bind_method(D_METHOD("get_item_tooltip", "idx"), &OptionButton::get_item_tooltip);
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ClassDB::bind_method(D_METHOD("is_item_disabled", "idx"), &OptionButton::is_item_disabled);
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ClassDB::bind_method(D_METHOD("is_item_separator", "idx"), &OptionButton::is_item_separator);
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ClassDB::bind_method(D_METHOD("add_separator", "text"), &OptionButton::add_separator, DEFVAL(String()));
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ClassDB::bind_method(D_METHOD("clear"), &OptionButton::clear);
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ClassDB::bind_method(D_METHOD("select", "idx"), &OptionButton::select);
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ClassDB::bind_method(D_METHOD("get_selected"), &OptionButton::get_selected);
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ClassDB::bind_method(D_METHOD("get_selected_id"), &OptionButton::get_selected_id);
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ClassDB::bind_method(D_METHOD("get_selected_metadata"), &OptionButton::get_selected_metadata);
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ClassDB::bind_method(D_METHOD("remove_item", "idx"), &OptionButton::remove_item);
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ClassDB::bind_method(D_METHOD("_select_int", "idx"), &OptionButton::_select_int);
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ClassDB::bind_method(D_METHOD("get_popup"), &OptionButton::get_popup);
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ClassDB::bind_method(D_METHOD("show_popup"), &OptionButton::show_popup);
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ClassDB::bind_method(D_METHOD("set_item_count", "count"), &OptionButton::set_item_count);
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ClassDB::bind_method(D_METHOD("get_item_count"), &OptionButton::get_item_count);
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ClassDB::bind_method(D_METHOD("has_selectable_items"), &OptionButton::has_selectable_items);
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ClassDB::bind_method(D_METHOD("get_selectable_item", "from_last"), &OptionButton::get_selectable_item, DEFVAL(false));
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ClassDB::bind_method(D_METHOD("set_fit_to_longest_item", "fit"), &OptionButton::set_fit_to_longest_item);
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ClassDB::bind_method(D_METHOD("is_fit_to_longest_item"), &OptionButton::is_fit_to_longest_item);
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ClassDB::bind_method(D_METHOD("set_allow_reselect", "allow"), &OptionButton::set_allow_reselect);
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ClassDB::bind_method(D_METHOD("get_allow_reselect"), &OptionButton::get_allow_reselect);
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ClassDB::bind_method(D_METHOD("set_disable_shortcuts", "disabled"), &OptionButton::set_disable_shortcuts);
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ADD_PROPERTY(PropertyInfo(Variant::INT, "selected"), "_select_int", "get_selected");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "fit_to_longest_item"), "set_fit_to_longest_item", "is_fit_to_longest_item");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "allow_reselect"), "set_allow_reselect", "get_allow_reselect");
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ADD_ARRAY_COUNT("Items", "item_count", "set_item_count", "get_item_count", "popup/item_");
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ADD_SIGNAL(MethodInfo("item_selected", PropertyInfo(Variant::INT, "index")));
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ADD_SIGNAL(MethodInfo("item_focused", PropertyInfo(Variant::INT, "index")));
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BIND_THEME_ITEM(Theme::DATA_TYPE_STYLEBOX, OptionButton, normal);
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BIND_THEME_ITEM(Theme::DATA_TYPE_COLOR, OptionButton, font_color);
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BIND_THEME_ITEM(Theme::DATA_TYPE_COLOR, OptionButton, font_focus_color);
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BIND_THEME_ITEM(Theme::DATA_TYPE_COLOR, OptionButton, font_pressed_color);
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BIND_THEME_ITEM(Theme::DATA_TYPE_COLOR, OptionButton, font_hover_color);
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BIND_THEME_ITEM(Theme::DATA_TYPE_COLOR, OptionButton, font_hover_pressed_color);
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BIND_THEME_ITEM(Theme::DATA_TYPE_COLOR, OptionButton, font_disabled_color);
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BIND_THEME_ITEM(Theme::DATA_TYPE_CONSTANT, OptionButton, h_separation);
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BIND_THEME_ITEM_CUSTOM(Theme::DATA_TYPE_ICON, OptionButton, arrow_icon, "arrow");
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BIND_THEME_ITEM(Theme::DATA_TYPE_CONSTANT, OptionButton, arrow_margin);
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BIND_THEME_ITEM(Theme::DATA_TYPE_CONSTANT, OptionButton, modulate_arrow);
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PopupMenu::Item defaults(true);
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base_property_helper.set_prefix("popup/item_");
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base_property_helper.set_array_length_getter(&OptionButton::get_item_count);
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base_property_helper.register_property(PropertyInfo(Variant::STRING, "text"), defaults.text, &OptionButton::_dummy_setter, &OptionButton::get_item_text);
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base_property_helper.register_property(PropertyInfo(Variant::OBJECT, "icon", PROPERTY_HINT_RESOURCE_TYPE, "Texture2D"), defaults.icon, &OptionButton::_dummy_setter, &OptionButton::get_item_icon);
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base_property_helper.register_property(PropertyInfo(Variant::INT, "id", PROPERTY_HINT_RANGE, "0,10,1,or_greater"), defaults.id, &OptionButton::_dummy_setter, &OptionButton::get_item_id);
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base_property_helper.register_property(PropertyInfo(Variant::BOOL, "disabled"), defaults.disabled, &OptionButton::_dummy_setter, &OptionButton::is_item_disabled);
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base_property_helper.register_property(PropertyInfo(Variant::BOOL, "separator"), defaults.separator, &OptionButton::_dummy_setter, &OptionButton::is_item_separator);
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}
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void OptionButton::set_disable_shortcuts(bool p_disabled) {
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disable_shortcuts = p_disabled;
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}
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OptionButton::OptionButton(const String &p_text) :
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Button(p_text) {
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set_toggle_mode(true);
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set_process_shortcut_input(true);
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set_text_alignment(HORIZONTAL_ALIGNMENT_LEFT);
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set_action_mode(ACTION_MODE_BUTTON_PRESS);
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popup = memnew(PopupMenu);
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popup->hide();
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add_child(popup, false, INTERNAL_MODE_FRONT);
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popup->connect("index_pressed", callable_mp(this, &OptionButton::_selected));
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popup->connect("id_focused", callable_mp(this, &OptionButton::_focused));
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popup->connect("popup_hide", callable_mp((BaseButton *)this, &BaseButton::set_pressed).bind(false));
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property_helper.setup_for_instance(base_property_helper, this);
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}
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OptionButton::~OptionButton() {
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}
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