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Add PropertyListHelper

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This commit is contained in:
kobewi 2023-11-08 23:16:17 +01:00
parent 26b1fd0d84
commit 2c14c0885f
4 changed files with 233 additions and 47 deletions
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70
scene/gui/item_list.cpp
View file

@ -35,6 +35,8 @@
#include "core/string/translation.h"
#include "scene/theme/theme_db.h"
PropertyListHelper ItemList::base_property_helper;
void ItemList::_shape_text(int p_idx) {
Item &item = items.write[p_idx];
@ -1678,23 +1680,10 @@ TextServer::OverrunBehavior ItemList::get_text_overrun_behavior() const {
}
bool ItemList::_set(const StringName &p_name, const Variant &p_value) {
Vector<String> components = String(p_name).split("/", true, 2);
if (components.size() >= 2 && components[0].begins_with("item_") && components[0].trim_prefix("item_").is_valid_int()) {
int item_index = components[0].trim_prefix("item_").to_int();
if (components[1] == "text") {
set_item_text(item_index, p_value);
return true;
} else if (components[1] == "icon") {
set_item_icon(item_index, p_value);
return true;
} else if (components[1] == "disabled") {
set_item_disabled(item_index, p_value);
return true;
} else if (components[1] == "selectable") {
set_item_selectable(item_index, p_value);
return true;
}
if (property_helper.property_set_value(p_name, p_value)) {
return true;
}
#ifndef DISABLE_DEPRECATED
// Compatibility.
if (p_name == "items") {
@ -1717,42 +1706,19 @@ bool ItemList::_set(const StringName &p_name, const Variant &p_value) {
}
bool ItemList::_get(const StringName &p_name, Variant &r_ret) const {
Vector<String> components = String(p_name).split("/", true, 2);
if (components.size() >= 2 && components[0].begins_with("item_") && components[0].trim_prefix("item_").is_valid_int()) {
int item_index = components[0].trim_prefix("item_").to_int();
if (components[1] == "text") {
r_ret = get_item_text(item_index);
return true;
} else if (components[1] == "icon") {
r_ret = get_item_icon(item_index);
return true;
} else if (components[1] == "disabled") {
r_ret = is_item_disabled(item_index);
return true;
} else if (components[1] == "selectable") {
r_ret = is_item_selectable(item_index);
return true;
}
}
return false;
return property_helper.property_get_value(p_name, r_ret);
}
void ItemList::_get_property_list(List<PropertyInfo> *p_list) const {
for (int i = 0; i < items.size(); i++) {
p_list->push_back(PropertyInfo(Variant::STRING, vformat("item_%d/text", i)));
property_helper.get_property_list(p_list, items.size());
}
PropertyInfo pi = PropertyInfo(Variant::OBJECT, vformat("item_%d/icon", i), PROPERTY_HINT_RESOURCE_TYPE, "Texture2D");
pi.usage &= ~(get_item_icon(i).is_null() ? PROPERTY_USAGE_STORAGE : 0);
p_list->push_back(pi);
bool ItemList::_property_can_revert(const StringName &p_name) const {
return property_helper.property_can_revert(p_name);
}
pi = PropertyInfo(Variant::BOOL, vformat("item_%d/selectable", i));
pi.usage &= ~(is_item_selectable(i) ? PROPERTY_USAGE_STORAGE : 0);
p_list->push_back(pi);
pi = PropertyInfo(Variant::BOOL, vformat("item_%d/disabled", i));
pi.usage &= ~(!is_item_disabled(i) ? PROPERTY_USAGE_STORAGE : 0);
p_list->push_back(pi);
}
bool ItemList::_property_get_revert(const StringName &p_name, Variant &r_property) const {
return property_helper.property_get_revert(p_name, r_property);
}
void ItemList::_bind_methods() {
@ -1919,6 +1885,14 @@ void ItemList::_bind_methods() {
BIND_THEME_ITEM_CUSTOM(Theme::DATA_TYPE_STYLEBOX, ItemList, cursor_style, "cursor_unfocused");
BIND_THEME_ITEM_CUSTOM(Theme::DATA_TYPE_STYLEBOX, ItemList, cursor_focus_style, "cursor");
BIND_THEME_ITEM(Theme::DATA_TYPE_COLOR, ItemList, guide_color);
Item defaults(true);
base_property_helper.set_prefix("item_");
base_property_helper.register_property(PropertyInfo(Variant::STRING, "text"), defaults.text, "set_item_text", "get_item_text");
base_property_helper.register_property(PropertyInfo(Variant::OBJECT, "icon", PROPERTY_HINT_RESOURCE_TYPE, "Texture2D"), defaults.icon, "set_item_icon", "get_item_icon");
base_property_helper.register_property(PropertyInfo(Variant::BOOL, "selectable"), defaults.selectable, "set_item_selectable", "is_item_selectable");
base_property_helper.register_property(PropertyInfo(Variant::BOOL, "disabled"), defaults.disabled, "set_item_disabled", "is_item_disabled");
}
ItemList::ItemList() {
@ -1930,6 +1904,8 @@ ItemList::ItemList() {
set_focus_mode(FOCUS_ALL);
set_clip_contents(true);
property_helper.setup_for_instance(base_property_helper, this);
}
ItemList::~ItemList() {

8
scene/gui/item_list.h
View file

@ -33,6 +33,7 @@
#include "scene/gui/control.h"
#include "scene/gui/scroll_bar.h"
#include "scene/property_list_helper.h"
#include "scene/resources/text_paragraph.h"
class ItemList : public Control {
@ -82,8 +83,13 @@ private:
Item() {
text_buf.instantiate();
}
Item(bool p_dummy) {}
};
static PropertyListHelper base_property_helper;
PropertyListHelper property_helper;
int current = -1;
int hovered = -1;
@ -157,6 +163,8 @@ protected:
bool _set(const StringName &p_name, const Variant &p_value);
bool _get(const StringName &p_name, Variant &r_ret) const;
void _get_property_list(List<PropertyInfo> *p_list) const;
bool _property_can_revert(const StringName &p_name) const;
bool _property_get_revert(const StringName &p_name, Variant &r_property) const;
static void _bind_methods();
public:

138
scene/property_list_helper.cpp Normal file
View file

@ -0,0 +1,138 @@
/**************************************************************************/
/* property_list_helper.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 "property_list_helper.h"
const PropertyListHelper::Property *PropertyListHelper::_get_property(const String &p_property, int *r_index) const {
const Vector<String> components = p_property.split("/", true, 2);
if (components.size() < 2 || !components[0].begins_with(prefix)) {
return nullptr;
}
{
const String index_string = components[0].trim_prefix(prefix);
if (!index_string.is_valid_int()) {
return nullptr;
}
*r_index = index_string.to_int();
}
return property_list.getptr(components[1]);
}
void PropertyListHelper::_bind_property(const Property &p_property, const Object *p_object) {
Property property = p_property;
property.info = p_property.info;
property.default_value = p_property.default_value;
property.setter = Callable(p_object, p_property.setter_name);
property.getter = Callable(p_object, p_property.getter_name);
property_list[property.info.name] = property;
}
void PropertyListHelper::set_prefix(const String &p_prefix) {
prefix = p_prefix;
}
void PropertyListHelper::register_property(const PropertyInfo &p_info, const Variant &p_default, const StringName &p_setter, const StringName &p_getter) {
Property property;
property.info = p_info;
property.default_value = p_default;
property.setter_name = p_setter;
property.getter_name = p_getter;
property_list[p_info.name] = property;
}
void PropertyListHelper::setup_for_instance(const PropertyListHelper &p_base, const Object *p_object) {
prefix = p_base.prefix;
for (const KeyValue<String, Property> &E : p_base.property_list) {
_bind_property(E.value, p_object);
}
}
void PropertyListHelper::get_property_list(List<PropertyInfo> *p_list, int p_count) const {
for (int i = 0; i < p_count; i++) {
for (const KeyValue<String, Property> &E : property_list) {
const Property &property = E.value;
PropertyInfo info = property.info;
if (property.getter.call(i) == property.default_value) {
info.usage &= (~PROPERTY_USAGE_STORAGE);
}
info.name = vformat("%s%d/%s", prefix, i, info.name);
p_list->push_back(info);
}
}
}
bool PropertyListHelper::property_get_value(const String &p_property, Variant &r_ret) const {
int index;
const Property *property = _get_property(p_property, &index);
if (property) {
r_ret = property->getter.call(index);
return true;
}
return false;
}
bool PropertyListHelper::property_set_value(const String &p_property, const Variant &p_value) const {
int index;
const Property *property = _get_property(p_property, &index);
if (property) {
property->setter.call(index, p_value);
return true;
}
return false;
}
bool PropertyListHelper::property_can_revert(const String &p_property) const {
int index;
const Property *property = _get_property(p_property, &index);
if (property) {
return property->getter.call(index) != property->default_value;
}
return false;
}
bool PropertyListHelper::property_get_revert(const String &p_property, Variant &r_value) const {
int index;
const Property *property = _get_property(p_property, &index);
if (property) {
r_value = property->default_value;
return true;
}
return false;
}

64
scene/property_list_helper.h Normal file
View file

@ -0,0 +1,64 @@
/**************************************************************************/
/* property_list_helper.h */
/**************************************************************************/
/* 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. */
/**************************************************************************/
#ifndef PROPERTY_LIST_HELPER_H
#define PROPERTY_LIST_HELPER_H
#include "core/object/object.h"
class PropertyListHelper {
struct Property {
PropertyInfo info;
Variant default_value;
StringName setter_name;
StringName getter_name;
Callable setter;
Callable getter;
};
String prefix;
HashMap<String, Property> property_list;
const Property *_get_property(const String &p_property, int *r_index) const;
void _bind_property(const Property &p_property, const Object *p_object);
public:
void set_prefix(const String &p_prefix);
void register_property(const PropertyInfo &p_info, const Variant &p_default, const StringName &p_setter, const StringName &p_getter);
void setup_for_instance(const PropertyListHelper &p_base, const Object *p_object);
void get_property_list(List<PropertyInfo> *p_list, int p_count) const;
bool property_get_value(const String &p_property, Variant &r_ret) const;
bool property_set_value(const String &p_property, const Variant &p_value) const;
bool property_can_revert(const String &p_property) const;
bool property_get_revert(const String &p_property, Variant &r_value) const;
};
#endif // PROPERTY_LIST_HELPER_H