mirror of
https://github.com/Relintai/pandemonium_engine.git
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324 lines
10 KiB
C++
324 lines
10 KiB
C++
/*************************************************************************/
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/* range.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) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2022 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 "range.h"
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String Range::get_configuration_warning() const {
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String warning = Control::get_configuration_warning();
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if (shared->exp_ratio && shared->min <= 0) {
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if (warning != String()) {
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warning += "\n\n";
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}
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warning += TTR("If \"Exp Edit\" is enabled, \"Min Value\" must be greater than 0.");
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}
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return warning;
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}
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void Range::_value_changed_notify() {
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_value_changed(shared->val);
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emit_signal("value_changed", shared->val);
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update();
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_change_notify("value");
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}
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void Range::Shared::emit_value_changed() {
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for (RBSet<Range *>::Element *E = owners.front(); E; E = E->next()) {
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Range *r = E->get();
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if (!r->is_inside_tree()) {
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continue;
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}
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r->_value_changed_notify();
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}
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}
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void Range::_changed_notify(const char *p_what) {
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emit_signal("changed");
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update();
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_change_notify(p_what);
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}
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void Range::Shared::emit_changed(const char *p_what) {
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for (RBSet<Range *>::Element *E = owners.front(); E; E = E->next()) {
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Range *r = E->get();
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if (!r->is_inside_tree()) {
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continue;
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}
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r->_changed_notify(p_what);
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}
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}
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void Range::set_value(double p_val) {
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if (shared->step > 0) {
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p_val = Math::round((p_val - shared->min) / shared->step) * shared->step + shared->min;
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}
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if (_rounded_values) {
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p_val = Math::round(p_val);
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}
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if (!shared->allow_greater && p_val > shared->max - shared->page) {
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p_val = shared->max - shared->page;
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}
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if (!shared->allow_lesser && p_val < shared->min) {
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p_val = shared->min;
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}
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if (shared->val == p_val) {
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return;
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}
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shared->val = p_val;
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shared->emit_value_changed();
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}
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void Range::set_min(double p_min) {
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shared->min = p_min;
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set_value(shared->val);
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shared->emit_changed("min");
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update_configuration_warning();
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}
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void Range::set_max(double p_max) {
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shared->max = p_max;
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set_value(shared->val);
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shared->emit_changed("max");
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}
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void Range::set_step(double p_step) {
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shared->step = p_step;
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shared->emit_changed("step");
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}
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void Range::set_page(double p_page) {
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shared->page = p_page;
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set_value(shared->val);
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shared->emit_changed("page");
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}
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double Range::get_value() const {
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return shared->val;
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}
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double Range::get_min() const {
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return shared->min;
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}
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double Range::get_max() const {
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return shared->max;
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}
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double Range::get_step() const {
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return shared->step;
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}
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double Range::get_page() const {
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return shared->page;
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}
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void Range::set_as_ratio(double p_value) {
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double v;
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if (shared->exp_ratio && get_min() >= 0) {
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double exp_min = get_min() == 0 ? 0.0 : Math::log(get_min()) / Math::log((double)2);
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double exp_max = Math::log(get_max()) / Math::log((double)2);
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v = Math::pow(2, exp_min + (exp_max - exp_min) * p_value);
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} else {
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double percent = (get_max() - get_min()) * p_value;
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if (get_step() > 0) {
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double steps = round(percent / get_step());
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v = steps * get_step() + get_min();
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} else {
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v = percent + get_min();
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}
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}
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v = CLAMP(v, get_min(), get_max());
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set_value(v);
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}
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double Range::get_as_ratio() const {
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if (Math::is_equal_approx(get_max(), get_min())) {
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// Avoid division by zero.
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return 1.0;
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}
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if (shared->exp_ratio && get_min() >= 0) {
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double exp_min = get_min() == 0 ? 0.0 : Math::log(get_min()) / Math::log((double)2);
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double exp_max = Math::log(get_max()) / Math::log((double)2);
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float value = CLAMP(get_value(), shared->min, shared->max);
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double v = Math::log(value) / Math::log((double)2);
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return CLAMP((v - exp_min) / (exp_max - exp_min), 0, 1);
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} else {
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float value = CLAMP(get_value(), shared->min, shared->max);
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return CLAMP((value - get_min()) / (get_max() - get_min()), 0, 1);
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}
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}
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void Range::_share(Node *p_range) {
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Range *r = Object::cast_to<Range>(p_range);
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ERR_FAIL_COND(!r);
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share(r);
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}
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void Range::share(Range *p_range) {
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ERR_FAIL_NULL(p_range);
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p_range->_ref_shared(shared);
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p_range->_changed_notify();
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p_range->_value_changed_notify();
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}
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void Range::unshare() {
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Shared *nshared = memnew(Shared);
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nshared->min = shared->min;
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nshared->max = shared->max;
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nshared->val = shared->val;
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nshared->step = shared->step;
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nshared->page = shared->page;
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nshared->exp_ratio = shared->exp_ratio;
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nshared->allow_greater = shared->allow_greater;
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nshared->allow_lesser = shared->allow_lesser;
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_unref_shared();
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_ref_shared(nshared);
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}
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void Range::_ref_shared(Shared *p_shared) {
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if (shared && p_shared == shared) {
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return;
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}
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_unref_shared();
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shared = p_shared;
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shared->owners.insert(this);
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}
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void Range::_unref_shared() {
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if (shared) {
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shared->owners.erase(this);
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if (shared->owners.size() == 0) {
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memdelete(shared);
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shared = nullptr;
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}
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}
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}
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void Range::_bind_methods() {
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ClassDB::bind_method(D_METHOD("get_value"), &Range::get_value);
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ClassDB::bind_method(D_METHOD("get_min"), &Range::get_min);
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ClassDB::bind_method(D_METHOD("get_max"), &Range::get_max);
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ClassDB::bind_method(D_METHOD("get_step"), &Range::get_step);
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ClassDB::bind_method(D_METHOD("get_page"), &Range::get_page);
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ClassDB::bind_method(D_METHOD("get_as_ratio"), &Range::get_as_ratio);
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ClassDB::bind_method(D_METHOD("set_value", "value"), &Range::set_value);
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ClassDB::bind_method(D_METHOD("set_min", "minimum"), &Range::set_min);
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ClassDB::bind_method(D_METHOD("set_max", "maximum"), &Range::set_max);
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ClassDB::bind_method(D_METHOD("set_step", "step"), &Range::set_step);
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ClassDB::bind_method(D_METHOD("set_page", "pagesize"), &Range::set_page);
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ClassDB::bind_method(D_METHOD("set_as_ratio", "value"), &Range::set_as_ratio);
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ClassDB::bind_method(D_METHOD("set_use_rounded_values", "enabled"), &Range::set_use_rounded_values);
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ClassDB::bind_method(D_METHOD("is_using_rounded_values"), &Range::is_using_rounded_values);
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ClassDB::bind_method(D_METHOD("set_exp_ratio", "enabled"), &Range::set_exp_ratio);
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ClassDB::bind_method(D_METHOD("is_ratio_exp"), &Range::is_ratio_exp);
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ClassDB::bind_method(D_METHOD("set_allow_greater", "allow"), &Range::set_allow_greater);
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ClassDB::bind_method(D_METHOD("is_greater_allowed"), &Range::is_greater_allowed);
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ClassDB::bind_method(D_METHOD("set_allow_lesser", "allow"), &Range::set_allow_lesser);
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ClassDB::bind_method(D_METHOD("is_lesser_allowed"), &Range::is_lesser_allowed);
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ClassDB::bind_method(D_METHOD("share", "with"), &Range::_share);
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ClassDB::bind_method(D_METHOD("unshare"), &Range::unshare);
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ADD_SIGNAL(MethodInfo("value_changed", PropertyInfo(Variant::REAL, "value")));
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ADD_SIGNAL(MethodInfo("changed"));
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ADD_PROPERTY(PropertyInfo(Variant::REAL, "min_value"), "set_min", "get_min");
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ADD_PROPERTY(PropertyInfo(Variant::REAL, "max_value"), "set_max", "get_max");
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ADD_PROPERTY(PropertyInfo(Variant::REAL, "step"), "set_step", "get_step");
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ADD_PROPERTY(PropertyInfo(Variant::REAL, "page"), "set_page", "get_page");
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ADD_PROPERTY(PropertyInfo(Variant::REAL, "value"), "set_value", "get_value");
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ADD_PROPERTY(PropertyInfo(Variant::REAL, "ratio", PROPERTY_HINT_RANGE, "0,1,0.01", 0), "set_as_ratio", "get_as_ratio");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "exp_edit"), "set_exp_ratio", "is_ratio_exp");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "rounded"), "set_use_rounded_values", "is_using_rounded_values");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "allow_greater"), "set_allow_greater", "is_greater_allowed");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "allow_lesser"), "set_allow_lesser", "is_lesser_allowed");
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}
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void Range::set_use_rounded_values(bool p_enable) {
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_rounded_values = p_enable;
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}
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bool Range::is_using_rounded_values() const {
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return _rounded_values;
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}
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void Range::set_exp_ratio(bool p_enable) {
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shared->exp_ratio = p_enable;
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update_configuration_warning();
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}
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bool Range::is_ratio_exp() const {
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return shared->exp_ratio;
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}
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void Range::set_allow_greater(bool p_allow) {
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shared->allow_greater = p_allow;
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}
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bool Range::is_greater_allowed() const {
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return shared->allow_greater;
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}
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void Range::set_allow_lesser(bool p_allow) {
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shared->allow_lesser = p_allow;
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}
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bool Range::is_lesser_allowed() const {
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return shared->allow_lesser;
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}
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Range::Range() {
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shared = memnew(Shared);
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shared->min = 0;
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shared->max = 100;
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shared->val = 0;
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shared->step = 1;
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shared->page = 0;
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shared->owners.insert(this);
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shared->exp_ratio = false;
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shared->allow_greater = false;
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shared->allow_lesser = false;
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_rounded_values = false;
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}
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Range::~Range() {
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_unref_shared();
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}
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