virtualx-engine/scene/gui/option_button.cpp
Rémi Verschelde d95794ec8a
One Copyright Update to rule them all
As many open source projects have started doing it, we're removing the
current year from the copyright notice, so that we don't need to bump
it every year.

It seems like only the first year of publication is technically
relevant for copyright notices, and even that seems to be something
that many companies stopped listing altogether (in a version controlled
codebase, the commits are a much better source of date of publication
than a hardcoded copyright statement).

We also now list Godot Engine contributors first as we're collectively
the current maintainers of the project, and we clarify that the
"exclusive" copyright of the co-founders covers the timespan before
opensourcing (their further contributions are included as part of Godot
Engine contributors).

Also fixed "cf." Frenchism - it's meant as "refer to / see".
2023-01-05 13:25:55 +01:00

592 lines
19 KiB
C++

/**************************************************************************/
/* option_button.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 "option_button.h"
#include "core/string/print_string.h"
static const int NONE_SELECTED = -1;
Size2 OptionButton::get_minimum_size() const {
Size2 minsize;
if (fit_to_longest_item) {
minsize = _cached_size;
} else {
minsize = Button::get_minimum_size();
}
if (has_theme_icon(SNAME("arrow"))) {
const Size2 padding = theme_cache.normal->get_minimum_size();
const Size2 arrow_size = theme_cache.arrow_icon->get_size();
Size2 content_size = minsize - padding;
content_size.width += arrow_size.width + MAX(0, theme_cache.h_separation);
content_size.height = MAX(content_size.height, arrow_size.height);
minsize = content_size + padding;
}
return minsize;
}
void OptionButton::_update_theme_item_cache() {
Button::_update_theme_item_cache();
theme_cache.normal = get_theme_stylebox(SNAME("normal"));
theme_cache.font_color = get_theme_color(SNAME("font_color"));
theme_cache.font_focus_color = get_theme_color(SNAME("font_focus_color"));
theme_cache.font_pressed_color = get_theme_color(SNAME("font_pressed_color"));
theme_cache.font_hover_color = get_theme_color(SNAME("font_hover_color"));
theme_cache.font_hover_pressed_color = get_theme_color(SNAME("font_hover_pressed_color"));
theme_cache.font_disabled_color = get_theme_color(SNAME("font_disabled_color"));
theme_cache.h_separation = get_theme_constant(SNAME("h_separation"));
theme_cache.arrow_icon = get_theme_icon(SNAME("arrow"));
theme_cache.arrow_margin = get_theme_constant(SNAME("arrow_margin"));
theme_cache.modulate_arrow = get_theme_constant(SNAME("modulate_arrow"));
}
void OptionButton::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_POSTINITIALIZE: {
if (has_theme_icon(SNAME("arrow"))) {
if (is_layout_rtl()) {
_set_internal_margin(SIDE_LEFT, theme_cache.arrow_icon->get_width());
} else {
_set_internal_margin(SIDE_RIGHT, theme_cache.arrow_icon->get_width());
}
}
} break;
case NOTIFICATION_DRAW: {
if (!has_theme_icon(SNAME("arrow"))) {
return;
}
RID ci = get_canvas_item();
Color clr = Color(1, 1, 1);
if (theme_cache.modulate_arrow) {
switch (get_draw_mode()) {
case DRAW_PRESSED:
clr = theme_cache.font_pressed_color;
break;
case DRAW_HOVER:
clr = theme_cache.font_hover_color;
break;
case DRAW_HOVER_PRESSED:
clr = theme_cache.font_hover_pressed_color;
break;
case DRAW_DISABLED:
clr = theme_cache.font_disabled_color;
break;
default:
if (has_focus()) {
clr = theme_cache.font_focus_color;
} else {
clr = theme_cache.font_color;
}
}
}
Size2 size = get_size();
Point2 ofs;
if (is_layout_rtl()) {
ofs = Point2(theme_cache.arrow_margin, int(Math::abs((size.height - theme_cache.arrow_icon->get_height()) / 2)));
} else {
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)));
}
theme_cache.arrow_icon->draw(ci, ofs, clr);
} break;
case NOTIFICATION_TRANSLATION_CHANGED:
case NOTIFICATION_LAYOUT_DIRECTION_CHANGED: {
popup->set_layout_direction((Window::LayoutDirection)get_layout_direction());
[[fallthrough]];
}
case NOTIFICATION_THEME_CHANGED: {
if (has_theme_icon(SNAME("arrow"))) {
if (is_layout_rtl()) {
_set_internal_margin(SIDE_LEFT, theme_cache.arrow_icon->get_width());
_set_internal_margin(SIDE_RIGHT, 0.f);
} else {
_set_internal_margin(SIDE_LEFT, 0.f);
_set_internal_margin(SIDE_RIGHT, theme_cache.arrow_icon->get_width());
}
}
_refresh_size_cache();
} break;
case NOTIFICATION_VISIBILITY_CHANGED: {
if (!is_visible_in_tree()) {
popup->hide();
}
} break;
}
}
bool OptionButton::_set(const StringName &p_name, const Variant &p_value) {
Vector<String> components = String(p_name).split("/", true, 2);
if (components.size() >= 2 && components[0] == "popup") {
String property = components[2];
if (property != "text" && property != "icon" && property != "id" && property != "disabled" && property != "separator") {
return false;
}
bool valid;
popup->set(String(p_name).trim_prefix("popup/"), p_value, &valid);
int idx = components[1].get_slice("_", 1).to_int();
if (idx == current) {
// Force refreshing currently displayed item.
current = NONE_SELECTED;
_select(idx, false);
}
if (property == "text" || property == "icon") {
_queue_refresh_cache();
}
return valid;
}
return false;
}
bool OptionButton::_get(const StringName &p_name, Variant &r_ret) const {
Vector<String> components = String(p_name).split("/", true, 2);
if (components.size() >= 2 && components[0] == "popup") {
String property = components[2];
if (property != "text" && property != "icon" && property != "id" && property != "disabled" && property != "separator") {
return false;
}
bool valid;
r_ret = popup->get(String(p_name).trim_prefix("popup/"), &valid);
return valid;
}
return false;
}
void OptionButton::_get_property_list(List<PropertyInfo> *p_list) const {
for (int i = 0; i < popup->get_item_count(); i++) {
p_list->push_back(PropertyInfo(Variant::STRING, vformat("popup/item_%d/text", i)));
PropertyInfo pi = PropertyInfo(Variant::OBJECT, vformat("popup/item_%d/icon", i), PROPERTY_HINT_RESOURCE_TYPE, "Texture2D");
pi.usage &= ~(popup->get_item_icon(i).is_null() ? PROPERTY_USAGE_STORAGE : 0);
p_list->push_back(pi);
pi = PropertyInfo(Variant::INT, vformat("popup/item_%d/id", i), PROPERTY_HINT_RANGE, "0,10,1,or_greater");
p_list->push_back(pi);
pi = PropertyInfo(Variant::BOOL, vformat("popup/item_%d/disabled", i));
pi.usage &= ~(!popup->is_item_disabled(i) ? PROPERTY_USAGE_STORAGE : 0);
p_list->push_back(pi);
pi = PropertyInfo(Variant::BOOL, vformat("popup/item_%d/separator", i));
pi.usage &= ~(!popup->is_item_separator(i) ? PROPERTY_USAGE_STORAGE : 0);
p_list->push_back(pi);
}
}
void OptionButton::_focused(int p_which) {
emit_signal(SNAME("item_focused"), p_which);
}
void OptionButton::_selected(int p_which) {
_select(p_which, true);
}
void OptionButton::pressed() {
if (popup->is_visible()) {
popup->hide();
return;
}
show_popup();
}
void OptionButton::add_icon_item(const Ref<Texture2D> &p_icon, const String &p_label, int p_id) {
bool first_selectable = !has_selectable_items();
popup->add_icon_radio_check_item(p_icon, p_label, p_id);
if (first_selectable) {
select(get_item_count() - 1);
}
_queue_refresh_cache();
}
void OptionButton::add_item(const String &p_label, int p_id) {
bool first_selectable = !has_selectable_items();
popup->add_radio_check_item(p_label, p_id);
if (first_selectable) {
select(get_item_count() - 1);
}
_queue_refresh_cache();
}
void OptionButton::set_item_text(int p_idx, const String &p_text) {
popup->set_item_text(p_idx, p_text);
if (current == p_idx) {
set_text(p_text);
}
_queue_refresh_cache();
}
void OptionButton::set_item_icon(int p_idx, const Ref<Texture2D> &p_icon) {
popup->set_item_icon(p_idx, p_icon);
if (current == p_idx) {
set_icon(p_icon);
}
_queue_refresh_cache();
}
void OptionButton::set_item_id(int p_idx, int p_id) {
popup->set_item_id(p_idx, p_id);
}
void OptionButton::set_item_metadata(int p_idx, const Variant &p_metadata) {
popup->set_item_metadata(p_idx, p_metadata);
}
void OptionButton::set_item_tooltip(int p_idx, const String &p_tooltip) {
popup->set_item_tooltip(p_idx, p_tooltip);
}
void OptionButton::set_item_disabled(int p_idx, bool p_disabled) {
popup->set_item_disabled(p_idx, p_disabled);
}
String OptionButton::get_item_text(int p_idx) const {
return popup->get_item_text(p_idx);
}
Ref<Texture2D> OptionButton::get_item_icon(int p_idx) const {
return popup->get_item_icon(p_idx);
}
int OptionButton::get_item_id(int p_idx) const {
if (p_idx == NONE_SELECTED) {
return NONE_SELECTED;
}
return popup->get_item_id(p_idx);
}
int OptionButton::get_item_index(int p_id) const {
return popup->get_item_index(p_id);
}
Variant OptionButton::get_item_metadata(int p_idx) const {
return popup->get_item_metadata(p_idx);
}
String OptionButton::get_item_tooltip(int p_idx) const {
return popup->get_item_tooltip(p_idx);
}
bool OptionButton::is_item_disabled(int p_idx) const {
return popup->is_item_disabled(p_idx);
}
bool OptionButton::is_item_separator(int p_idx) const {
return popup->is_item_separator(p_idx);
}
void OptionButton::set_item_count(int p_count) {
ERR_FAIL_COND(p_count < 0);
int count_old = get_item_count();
if (p_count == count_old) {
return;
}
popup->set_item_count(p_count);
if (p_count > count_old) {
for (int i = count_old; i < p_count; i++) {
popup->set_item_as_radio_checkable(i, true);
}
}
_refresh_size_cache();
notify_property_list_changed();
}
bool OptionButton::has_selectable_items() const {
for (int i = 0; i < get_item_count(); i++) {
if (!is_item_disabled(i) && !is_item_separator(i)) {
return true;
}
}
return false;
}
int OptionButton::get_selectable_item(bool p_from_last) const {
if (!p_from_last) {
for (int i = 0; i < get_item_count(); i++) {
if (!is_item_disabled(i) && !is_item_separator(i)) {
return i;
}
}
} else {
for (int i = get_item_count() - 1; i >= 0; i--) {
if (!is_item_disabled(i) && !is_item_separator(i)) {
return i;
}
}
}
return -1;
}
int OptionButton::get_item_count() const {
return popup->get_item_count();
}
void OptionButton::set_fit_to_longest_item(bool p_fit) {
if (p_fit == fit_to_longest_item) {
return;
}
fit_to_longest_item = p_fit;
_refresh_size_cache();
}
bool OptionButton::is_fit_to_longest_item() const {
return fit_to_longest_item;
}
void OptionButton::add_separator(const String &p_text) {
popup->add_separator(p_text);
}
void OptionButton::clear() {
popup->clear();
set_text("");
current = NONE_SELECTED;
_refresh_size_cache();
}
void OptionButton::_select(int p_which, bool p_emit) {
if (p_which == current) {
return;
}
if (p_which == NONE_SELECTED) {
for (int i = 0; i < popup->get_item_count(); i++) {
popup->set_item_checked(i, false);
}
current = NONE_SELECTED;
set_text("");
set_icon(nullptr);
} else {
ERR_FAIL_INDEX(p_which, popup->get_item_count());
for (int i = 0; i < popup->get_item_count(); i++) {
popup->set_item_checked(i, i == p_which);
}
current = p_which;
set_text(popup->get_item_text(current));
set_icon(popup->get_item_icon(current));
}
if (is_inside_tree() && p_emit) {
emit_signal(SNAME("item_selected"), current);
}
}
void OptionButton::_select_int(int p_which) {
if (p_which < NONE_SELECTED || p_which >= popup->get_item_count()) {
return;
}
_select(p_which, false);
}
void OptionButton::_refresh_size_cache() {
cache_refresh_pending = false;
if (!fit_to_longest_item) {
return;
}
_cached_size = Vector2();
for (int i = 0; i < get_item_count(); i++) {
_cached_size = _cached_size.max(get_minimum_size_for_text_and_icon(get_item_text(i), get_item_icon(i)));
}
update_minimum_size();
}
void OptionButton::_queue_refresh_cache() {
if (cache_refresh_pending) {
return;
}
cache_refresh_pending = true;
callable_mp(this, &OptionButton::_refresh_size_cache).call_deferred();
}
void OptionButton::select(int p_idx) {
_select(p_idx, false);
}
int OptionButton::get_selected() const {
return current;
}
int OptionButton::get_selected_id() const {
return get_item_id(current);
}
Variant OptionButton::get_selected_metadata() const {
int idx = get_selected();
if (idx < 0) {
return Variant();
}
return get_item_metadata(current);
}
void OptionButton::remove_item(int p_idx) {
popup->remove_item(p_idx);
if (current == p_idx) {
_select(NONE_SELECTED);
}
_queue_refresh_cache();
}
PopupMenu *OptionButton::get_popup() const {
return popup;
}
void OptionButton::show_popup() {
if (!get_viewport()) {
return;
}
Size2 button_size = get_global_transform_with_canvas().get_scale() * get_size();
popup->set_position(get_screen_position() + Size2(0, button_size.height));
popup->set_size(Size2i(button_size.width, 0));
// If not triggered by the mouse, start the popup with the checked item (or the first enabled one) focused.
if (current != NONE_SELECTED && !popup->is_item_disabled(current)) {
if (!_was_pressed_by_mouse()) {
popup->set_focused_item(current);
} else {
popup->scroll_to_item(current);
}
} else {
for (int i = 0; i < popup->get_item_count(); i++) {
if (!popup->is_item_disabled(i)) {
if (!_was_pressed_by_mouse()) {
popup->set_focused_item(i);
} else {
popup->scroll_to_item(i);
}
break;
}
}
}
popup->popup();
}
void OptionButton::get_translatable_strings(List<String> *p_strings) const {
popup->get_translatable_strings(p_strings);
}
void OptionButton::_validate_property(PropertyInfo &p_property) const {
if (p_property.name == "text" || p_property.name == "icon") {
p_property.usage = PROPERTY_USAGE_NONE;
}
}
void OptionButton::_bind_methods() {
ClassDB::bind_method(D_METHOD("add_item", "label", "id"), &OptionButton::add_item, DEFVAL(-1));
ClassDB::bind_method(D_METHOD("add_icon_item", "texture", "label", "id"), &OptionButton::add_icon_item, DEFVAL(-1));
ClassDB::bind_method(D_METHOD("set_item_text", "idx", "text"), &OptionButton::set_item_text);
ClassDB::bind_method(D_METHOD("set_item_icon", "idx", "texture"), &OptionButton::set_item_icon);
ClassDB::bind_method(D_METHOD("set_item_disabled", "idx", "disabled"), &OptionButton::set_item_disabled);
ClassDB::bind_method(D_METHOD("set_item_id", "idx", "id"), &OptionButton::set_item_id);
ClassDB::bind_method(D_METHOD("set_item_metadata", "idx", "metadata"), &OptionButton::set_item_metadata);
ClassDB::bind_method(D_METHOD("set_item_tooltip", "idx", "tooltip"), &OptionButton::set_item_tooltip);
ClassDB::bind_method(D_METHOD("get_item_text", "idx"), &OptionButton::get_item_text);
ClassDB::bind_method(D_METHOD("get_item_icon", "idx"), &OptionButton::get_item_icon);
ClassDB::bind_method(D_METHOD("get_item_id", "idx"), &OptionButton::get_item_id);
ClassDB::bind_method(D_METHOD("get_item_index", "id"), &OptionButton::get_item_index);
ClassDB::bind_method(D_METHOD("get_item_metadata", "idx"), &OptionButton::get_item_metadata);
ClassDB::bind_method(D_METHOD("get_item_tooltip", "idx"), &OptionButton::get_item_tooltip);
ClassDB::bind_method(D_METHOD("is_item_disabled", "idx"), &OptionButton::is_item_disabled);
ClassDB::bind_method(D_METHOD("is_item_separator", "idx"), &OptionButton::is_item_separator);
ClassDB::bind_method(D_METHOD("add_separator", "text"), &OptionButton::add_separator, DEFVAL(String()));
ClassDB::bind_method(D_METHOD("clear"), &OptionButton::clear);
ClassDB::bind_method(D_METHOD("select", "idx"), &OptionButton::select);
ClassDB::bind_method(D_METHOD("get_selected"), &OptionButton::get_selected);
ClassDB::bind_method(D_METHOD("get_selected_id"), &OptionButton::get_selected_id);
ClassDB::bind_method(D_METHOD("get_selected_metadata"), &OptionButton::get_selected_metadata);
ClassDB::bind_method(D_METHOD("remove_item", "idx"), &OptionButton::remove_item);
ClassDB::bind_method(D_METHOD("_select_int", "idx"), &OptionButton::_select_int);
ClassDB::bind_method(D_METHOD("get_popup"), &OptionButton::get_popup);
ClassDB::bind_method(D_METHOD("show_popup"), &OptionButton::show_popup);
ClassDB::bind_method(D_METHOD("set_item_count", "count"), &OptionButton::set_item_count);
ClassDB::bind_method(D_METHOD("get_item_count"), &OptionButton::get_item_count);
ClassDB::bind_method(D_METHOD("has_selectable_items"), &OptionButton::has_selectable_items);
ClassDB::bind_method(D_METHOD("get_selectable_item", "from_last"), &OptionButton::get_selectable_item, DEFVAL(false));
ClassDB::bind_method(D_METHOD("set_fit_to_longest_item", "fit"), &OptionButton::set_fit_to_longest_item);
ClassDB::bind_method(D_METHOD("is_fit_to_longest_item"), &OptionButton::is_fit_to_longest_item);
// "selected" property must come after "item_count", otherwise GH-10213 occurs.
ADD_ARRAY_COUNT("Items", "item_count", "set_item_count", "get_item_count", "popup/item_");
ADD_PROPERTY(PropertyInfo(Variant::INT, "selected"), "_select_int", "get_selected");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "fit_to_longest_item"), "set_fit_to_longest_item", "is_fit_to_longest_item");
ADD_SIGNAL(MethodInfo("item_selected", PropertyInfo(Variant::INT, "index")));
ADD_SIGNAL(MethodInfo("item_focused", PropertyInfo(Variant::INT, "index")));
}
OptionButton::OptionButton(const String &p_text) :
Button(p_text) {
set_toggle_mode(true);
set_text_alignment(HORIZONTAL_ALIGNMENT_LEFT);
set_action_mode(ACTION_MODE_BUTTON_PRESS);
popup = memnew(PopupMenu);
popup->hide();
add_child(popup, false, INTERNAL_MODE_FRONT);
popup->connect("index_pressed", callable_mp(this, &OptionButton::_selected));
popup->connect("id_focused", callable_mp(this, &OptionButton::_focused));
popup->connect("popup_hide", callable_mp((BaseButton *)this, &BaseButton::set_pressed).bind(false));
_refresh_size_cache();
}
OptionButton::~OptionButton() {
}