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virtualx-engine/scene/gui/link_button.cpp
Hugo Locurcio a06f82ca4d
Add optional constructor arguments to more Control nodes 
This can be used to make editor code more compact.
However, as of writing, these constructor arguments cannot be used
from the scripting API.

This was already provided for Label and CheckBox, but it was missing
for other Control nodes where it made sense to provide a default value.
2022-03-04 09:48:41 +01:00

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/*************************************************************************/
/* link_button.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "link_button.h"
#include "core/string/translation.h"
void LinkButton::_shape() {
Ref<Font> font = get_theme_font(SNAME("font"));
int font_size = get_theme_font_size(SNAME("font_size"));
text_buf->clear();
if (text_direction == Control::TEXT_DIRECTION_INHERITED) {
text_buf->set_direction(is_layout_rtl() ? TextServer::DIRECTION_RTL : TextServer::DIRECTION_LTR);
} else {
text_buf->set_direction((TextServer::Direction)text_direction);
}
TS->shaped_text_set_bidi_override(text_buf->get_rid(), structured_text_parser(st_parser, st_args, xl_text));
text_buf->add_string(xl_text, font, font_size, opentype_features, (!language.is_empty()) ? language : TranslationServer::get_singleton()->get_tool_locale());
}
void LinkButton::set_text(const String &p_text) {
if (text == p_text) {
return;
}
text = p_text;
xl_text = atr(text);
_shape();
update_minimum_size();
update();
}
String LinkButton::get_text() const {
return text;
}
void LinkButton::set_structured_text_bidi_override(Control::StructuredTextParser p_parser) {
if (st_parser != p_parser) {
st_parser = p_parser;
_shape();
update();
}
}
Control::StructuredTextParser LinkButton::get_structured_text_bidi_override() const {
return st_parser;
}
void LinkButton::set_structured_text_bidi_override_options(Array p_args) {
st_args = p_args;
_shape();
update();
}
Array LinkButton::get_structured_text_bidi_override_options() const {
return st_args;
}
void LinkButton::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;
_shape();
update();
}
}
Control::TextDirection LinkButton::get_text_direction() const {
return text_direction;
}
void LinkButton::clear_opentype_features() {
opentype_features.clear();
_shape();
update();
}
void LinkButton::set_opentype_feature(const String &p_name, int p_value) {
int32_t tag = TS->name_to_tag(p_name);
if (!opentype_features.has(tag) || (int)opentype_features[tag] != p_value) {
opentype_features[tag] = p_value;
_shape();
update();
}
}
int LinkButton::get_opentype_feature(const String &p_name) const {
int32_t tag = TS->name_to_tag(p_name);
if (!opentype_features.has(tag)) {
return -1;
}
return opentype_features[tag];
}
void LinkButton::set_language(const String &p_language) {
if (language != p_language) {
language = p_language;
_shape();
update();
}
}
String LinkButton::get_language() const {
return language;
}
void LinkButton::set_underline_mode(UnderlineMode p_underline_mode) {
underline_mode = p_underline_mode;
update();
}
LinkButton::UnderlineMode LinkButton::get_underline_mode() const {
return underline_mode;
}
Size2 LinkButton::get_minimum_size() const {
return text_buf->get_size();
}
void LinkButton::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_TRANSLATION_CHANGED: {
xl_text = atr(text);
_shape();
update_minimum_size();
update();
} break;
case NOTIFICATION_LAYOUT_DIRECTION_CHANGED: {
update();
} break;
case NOTIFICATION_THEME_CHANGED: {
_shape();
update_minimum_size();
update();
} break;
case NOTIFICATION_DRAW: {
RID ci = get_canvas_item();
Size2 size = get_size();
Color color;
bool do_underline = false;
switch (get_draw_mode()) {
case DRAW_NORMAL: {
if (has_focus()) {
color = get_theme_color(SNAME("font_focus_color"));
} else {
color = get_theme_color(SNAME("font_color"));
}
do_underline = underline_mode == UNDERLINE_MODE_ALWAYS;
} break;
case DRAW_HOVER_PRESSED:
case DRAW_PRESSED: {
if (has_theme_color(SNAME("font_pressed_color"))) {
color = get_theme_color(SNAME("font_pressed_color"));
} else {
color = get_theme_color(SNAME("font_color"));
}
do_underline = underline_mode != UNDERLINE_MODE_NEVER;
} break;
case DRAW_HOVER: {
color = get_theme_color(SNAME("font_hover_color"));
do_underline = underline_mode != UNDERLINE_MODE_NEVER;
} break;
case DRAW_DISABLED: {
color = get_theme_color(SNAME("font_disabled_color"));
do_underline = underline_mode == UNDERLINE_MODE_ALWAYS;
} break;
}
if (has_focus()) {
Ref<StyleBox> style = get_theme_stylebox(SNAME("focus"));
style->draw(ci, Rect2(Point2(), size));
}
int width = text_buf->get_line_width();
Color font_outline_color = get_theme_color(SNAME("font_outline_color"));
int outline_size = get_theme_constant(SNAME("outline_size"));
if (is_layout_rtl()) {
if (outline_size > 0 && font_outline_color.a > 0) {
text_buf->draw_outline(get_canvas_item(), Vector2(size.width - width, 0), outline_size, font_outline_color);
}
text_buf->draw(get_canvas_item(), Vector2(size.width - width, 0), color);
} else {
if (outline_size > 0 && font_outline_color.a > 0) {
text_buf->draw_outline(get_canvas_item(), Vector2(0, 0), outline_size, font_outline_color);
}
text_buf->draw(get_canvas_item(), Vector2(0, 0), color);
}
if (do_underline) {
int underline_spacing = get_theme_constant(SNAME("underline_spacing")) + text_buf->get_line_underline_position();
int y = text_buf->get_line_ascent() + underline_spacing;
if (is_layout_rtl()) {
draw_line(Vector2(size.width - width, y), Vector2(size.width, y), color, text_buf->get_line_underline_thickness());
} else {
draw_line(Vector2(0, y), Vector2(width, y), color, text_buf->get_line_underline_thickness());
}
}
} break;
}
}
bool LinkButton::_set(const StringName &p_name, const Variant &p_value) {
String str = p_name;
if (str.begins_with("opentype_features/")) {
String name = str.get_slicec('/', 1);
int32_t tag = TS->name_to_tag(name);
int value = p_value;
if (value == -1) {
if (opentype_features.has(tag)) {
opentype_features.erase(tag);
_shape();
update();
}
} else {
if (!opentype_features.has(tag) || (int)opentype_features[tag] != value) {
opentype_features[tag] = value;
_shape();
update();
}
}
notify_property_list_changed();
return true;
}
return false;
}
bool LinkButton::_get(const StringName &p_name, Variant &r_ret) const {
String str = p_name;
if (str.begins_with("opentype_features/")) {
String name = str.get_slicec('/', 1);
int32_t tag = TS->name_to_tag(name);
if (opentype_features.has(tag)) {
r_ret = opentype_features[tag];
return true;
} else {
r_ret = -1;
return true;
}
}
return false;
}
void LinkButton::_get_property_list(List<PropertyInfo> *p_list) const {
for (const Variant *ftr = opentype_features.next(nullptr); ftr != nullptr; ftr = opentype_features.next(ftr)) {
String name = TS->tag_to_name(*ftr);
p_list->push_back(PropertyInfo(Variant::INT, "opentype_features/" + name));
}
p_list->push_back(PropertyInfo(Variant::NIL, "opentype_features/_new", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_EDITOR));
}
void LinkButton::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_text", "text"), &LinkButton::set_text);
ClassDB::bind_method(D_METHOD("get_text"), &LinkButton::get_text);
ClassDB::bind_method(D_METHOD("set_text_direction", "direction"), &LinkButton::set_text_direction);
ClassDB::bind_method(D_METHOD("get_text_direction"), &LinkButton::get_text_direction);
ClassDB::bind_method(D_METHOD("set_opentype_feature", "tag", "value"), &LinkButton::set_opentype_feature);
ClassDB::bind_method(D_METHOD("get_opentype_feature", "tag"), &LinkButton::get_opentype_feature);
ClassDB::bind_method(D_METHOD("clear_opentype_features"), &LinkButton::clear_opentype_features);
ClassDB::bind_method(D_METHOD("set_language", "language"), &LinkButton::set_language);
ClassDB::bind_method(D_METHOD("get_language"), &LinkButton::get_language);
ClassDB::bind_method(D_METHOD("set_underline_mode", "underline_mode"), &LinkButton::set_underline_mode);
ClassDB::bind_method(D_METHOD("get_underline_mode"), &LinkButton::get_underline_mode);
ClassDB::bind_method(D_METHOD("set_structured_text_bidi_override", "parser"), &LinkButton::set_structured_text_bidi_override);
ClassDB::bind_method(D_METHOD("get_structured_text_bidi_override"), &LinkButton::get_structured_text_bidi_override);
ClassDB::bind_method(D_METHOD("set_structured_text_bidi_override_options", "args"), &LinkButton::set_structured_text_bidi_override_options);
ClassDB::bind_method(D_METHOD("get_structured_text_bidi_override_options"), &LinkButton::get_structured_text_bidi_override_options);
BIND_ENUM_CONSTANT(UNDERLINE_MODE_ALWAYS);
BIND_ENUM_CONSTANT(UNDERLINE_MODE_ON_HOVER);
BIND_ENUM_CONSTANT(UNDERLINE_MODE_NEVER);
ADD_PROPERTY(PropertyInfo(Variant::STRING, "text"), "set_text", "get_text");
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, "underline", PROPERTY_HINT_ENUM, "Always,On Hover,Never"), "set_underline_mode", "get_underline_mode");
ADD_GROUP("Structured Text", "structured_text_");
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");
}
LinkButton::LinkButton(const String &p_text) {
text_buf.instantiate();
set_focus_mode(FOCUS_NONE);
set_default_cursor_shape(CURSOR_POINTING_HAND);
set_text(p_text);
}
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