300 lines
11 KiB
C++
300 lines
11 KiB
C++
/*************************************************************************/
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/* link_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) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "link_button.h"
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#include "core/string/translation.h"
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void LinkButton::_shape() {
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Ref<Font> font = get_theme_font("font");
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int font_size = get_theme_font_size("font_size");
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text_buf->clear();
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if (text_direction == Control::TEXT_DIRECTION_INHERITED) {
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text_buf->set_direction(is_layout_rtl() ? TextServer::DIRECTION_RTL : TextServer::DIRECTION_LTR);
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} else {
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text_buf->set_direction((TextServer::Direction)text_direction);
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}
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TS->shaped_text_set_bidi_override(text_buf->get_rid(), structured_text_parser(st_parser, st_args, text));
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text_buf->add_string(text, font, font_size, opentype_features, (language != "") ? language : TranslationServer::get_singleton()->get_tool_locale());
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}
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void LinkButton::set_text(const String &p_text) {
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text = p_text;
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_shape();
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minimum_size_changed();
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update();
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}
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String LinkButton::get_text() const {
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return text;
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}
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void LinkButton::set_structured_text_bidi_override(Control::StructuredTextParser p_parser) {
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if (st_parser != p_parser) {
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st_parser = p_parser;
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_shape();
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update();
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}
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}
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Control::StructuredTextParser LinkButton::get_structured_text_bidi_override() const {
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return st_parser;
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}
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void LinkButton::set_structured_text_bidi_override_options(Array p_args) {
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st_args = p_args;
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_shape();
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update();
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}
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Array LinkButton::get_structured_text_bidi_override_options() const {
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return st_args;
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}
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void LinkButton::set_text_direction(Control::TextDirection p_text_direction) {
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ERR_FAIL_COND((int)p_text_direction < -1 || (int)p_text_direction > 3);
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if (text_direction != p_text_direction) {
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text_direction = p_text_direction;
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_shape();
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update();
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}
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}
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Control::TextDirection LinkButton::get_text_direction() const {
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return text_direction;
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}
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void LinkButton::clear_opentype_features() {
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opentype_features.clear();
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_shape();
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update();
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}
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void LinkButton::set_opentype_feature(const String &p_name, int p_value) {
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int32_t tag = TS->name_to_tag(p_name);
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if (!opentype_features.has(tag) || (int)opentype_features[tag] != p_value) {
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opentype_features[tag] = p_value;
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_shape();
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update();
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}
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}
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int LinkButton::get_opentype_feature(const String &p_name) const {
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int32_t tag = TS->name_to_tag(p_name);
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if (!opentype_features.has(tag)) {
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return -1;
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}
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return opentype_features[tag];
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}
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void LinkButton::set_language(const String &p_language) {
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if (language != p_language) {
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language = p_language;
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_shape();
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update();
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}
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}
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String LinkButton::get_language() const {
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return language;
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}
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void LinkButton::set_underline_mode(UnderlineMode p_underline_mode) {
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underline_mode = p_underline_mode;
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update();
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}
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LinkButton::UnderlineMode LinkButton::get_underline_mode() const {
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return underline_mode;
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}
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Size2 LinkButton::get_minimum_size() const {
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return text_buf->get_size();
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}
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void LinkButton::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_TRANSLATION_CHANGED:
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case NOTIFICATION_LAYOUT_DIRECTION_CHANGED: {
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update();
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} break;
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case NOTIFICATION_THEME_CHANGED: {
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_shape();
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minimum_size_changed();
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update();
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} break;
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case NOTIFICATION_DRAW: {
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RID ci = get_canvas_item();
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Size2 size = get_size();
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Color color;
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bool do_underline = false;
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switch (get_draw_mode()) {
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case DRAW_NORMAL: {
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color = get_theme_color("font_color");
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do_underline = underline_mode == UNDERLINE_MODE_ALWAYS;
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} break;
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case DRAW_HOVER_PRESSED:
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case DRAW_PRESSED: {
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if (has_theme_color("font_pressed_color")) {
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color = get_theme_color("font_pressed_color");
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} else {
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color = get_theme_color("font_color");
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}
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do_underline = underline_mode != UNDERLINE_MODE_NEVER;
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} break;
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case DRAW_HOVER: {
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color = get_theme_color("font_hover_color");
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do_underline = underline_mode != UNDERLINE_MODE_NEVER;
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} break;
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case DRAW_DISABLED: {
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color = get_theme_color("font_disabled_color");
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do_underline = underline_mode == UNDERLINE_MODE_ALWAYS;
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} break;
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}
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if (has_focus()) {
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Ref<StyleBox> style = get_theme_stylebox("focus");
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style->draw(ci, Rect2(Point2(), size));
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}
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int width = text_buf->get_line_width();
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if (is_layout_rtl()) {
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text_buf->draw(get_canvas_item(), Vector2(size.width - width, 0), color);
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} else {
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text_buf->draw(get_canvas_item(), Vector2(0, 0), color);
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}
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if (do_underline) {
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int underline_spacing = get_theme_constant("underline_spacing") + text_buf->get_line_underline_position();
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int y = text_buf->get_line_ascent() + underline_spacing;
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if (is_layout_rtl()) {
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draw_line(Vector2(size.width - width, y), Vector2(size.width, y), color, text_buf->get_line_underline_thickness());
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} else {
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draw_line(Vector2(0, y), Vector2(width, y), color, text_buf->get_line_underline_thickness());
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}
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}
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} break;
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}
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}
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bool LinkButton::_set(const StringName &p_name, const Variant &p_value) {
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String str = p_name;
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if (str.begins_with("opentype_features/")) {
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String name = str.get_slicec('/', 1);
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int32_t tag = TS->name_to_tag(name);
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double value = p_value;
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if (value == -1) {
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if (opentype_features.has(tag)) {
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opentype_features.erase(tag);
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_shape();
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update();
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}
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} else {
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if ((double)opentype_features[tag] != value) {
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opentype_features[tag] = value;
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_shape();
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update();
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}
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}
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_change_notify();
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return true;
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}
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return false;
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}
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bool LinkButton::_get(const StringName &p_name, Variant &r_ret) const {
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String str = p_name;
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if (str.begins_with("opentype_features/")) {
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String name = str.get_slicec('/', 1);
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int32_t tag = TS->name_to_tag(name);
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if (opentype_features.has(tag)) {
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r_ret = opentype_features[tag];
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return true;
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} else {
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r_ret = -1;
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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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void LinkButton::_get_property_list(List<PropertyInfo> *p_list) const {
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for (const Variant *ftr = opentype_features.next(nullptr); ftr != nullptr; ftr = opentype_features.next(ftr)) {
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String name = TS->tag_to_name(*ftr);
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p_list->push_back(PropertyInfo(Variant::FLOAT, "opentype_features/" + name));
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}
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p_list->push_back(PropertyInfo(Variant::NIL, "opentype_features/_new", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_EDITOR));
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}
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void LinkButton::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_text", "text"), &LinkButton::set_text);
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ClassDB::bind_method(D_METHOD("get_text"), &LinkButton::get_text);
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ClassDB::bind_method(D_METHOD("set_text_direction", "direction"), &LinkButton::set_text_direction);
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ClassDB::bind_method(D_METHOD("get_text_direction"), &LinkButton::get_text_direction);
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ClassDB::bind_method(D_METHOD("set_opentype_feature", "tag", "value"), &LinkButton::set_opentype_feature);
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ClassDB::bind_method(D_METHOD("get_opentype_feature", "tag"), &LinkButton::get_opentype_feature);
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ClassDB::bind_method(D_METHOD("clear_opentype_features"), &LinkButton::clear_opentype_features);
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ClassDB::bind_method(D_METHOD("set_language", "language"), &LinkButton::set_language);
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ClassDB::bind_method(D_METHOD("get_language"), &LinkButton::get_language);
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ClassDB::bind_method(D_METHOD("set_underline_mode", "underline_mode"), &LinkButton::set_underline_mode);
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ClassDB::bind_method(D_METHOD("get_underline_mode"), &LinkButton::get_underline_mode);
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ClassDB::bind_method(D_METHOD("set_structured_text_bidi_override", "parser"), &LinkButton::set_structured_text_bidi_override);
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ClassDB::bind_method(D_METHOD("get_structured_text_bidi_override"), &LinkButton::get_structured_text_bidi_override);
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ClassDB::bind_method(D_METHOD("set_structured_text_bidi_override_options", "args"), &LinkButton::set_structured_text_bidi_override_options);
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ClassDB::bind_method(D_METHOD("get_structured_text_bidi_override_options"), &LinkButton::get_structured_text_bidi_override_options);
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BIND_ENUM_CONSTANT(UNDERLINE_MODE_ALWAYS);
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BIND_ENUM_CONSTANT(UNDERLINE_MODE_ON_HOVER);
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BIND_ENUM_CONSTANT(UNDERLINE_MODE_NEVER);
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ADD_PROPERTY(PropertyInfo(Variant::STRING, "text"), "set_text", "get_text");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "text_direction", PROPERTY_HINT_ENUM, "Auto,LTR,RTL,Inherited"), "set_text_direction", "get_text_direction");
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ADD_PROPERTY(PropertyInfo(Variant::STRING, "language"), "set_language", "get_language");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "underline", PROPERTY_HINT_ENUM, "Always,On Hover,Never"), "set_underline_mode", "get_underline_mode");
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ADD_GROUP("Structured Text", "structured_text_");
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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");
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ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "structured_text_bidi_override_options"), "set_structured_text_bidi_override_options", "get_structured_text_bidi_override_options");
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}
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LinkButton::LinkButton() {
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text_buf.instance();
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set_focus_mode(FOCUS_NONE);
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set_default_cursor_shape(CURSOR_POINTING_HAND);
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}
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