/*************************************************************************/ /* range.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2021 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 "range.h" TypedArray<String> Range::get_configuration_warnings() const { TypedArray<String> warnings = Node::get_configuration_warnings(); if (shared->exp_ratio && shared->min <= 0) { warnings.push_back(TTR("If \"Exp Edit\" is enabled, \"Min Value\" must be greater than 0.")); } return warnings; } void Range::_value_changed_notify() { _value_changed(shared->val); emit_signal(SNAME("value_changed"), shared->val); update(); } void Range::Shared::emit_value_changed() { for (Set<Range *>::Element *E = owners.front(); E; E = E->next()) { Range *r = E->get(); if (!r->is_inside_tree()) { continue; } r->_value_changed_notify(); } } void Range::_changed_notify(const char *p_what) { emit_signal(SNAME("changed")); update(); } void Range::Shared::emit_changed(const char *p_what) { for (Set<Range *>::Element *E = owners.front(); E; E = E->next()) { Range *r = E->get(); if (!r->is_inside_tree()) { continue; } r->_changed_notify(p_what); } } void Range::set_value(double p_val) { if (shared->step > 0) { p_val = Math::round(p_val / shared->step) * shared->step; } if (_rounded_values) { p_val = Math::round(p_val); } if (!shared->allow_greater && p_val > shared->max - shared->page) { p_val = shared->max - shared->page; } if (!shared->allow_lesser && p_val < shared->min) { p_val = shared->min; } if (shared->val == p_val) { return; } shared->val = p_val; shared->emit_value_changed(); } void Range::set_min(double p_min) { shared->min = p_min; set_value(shared->val); shared->emit_changed("min"); update_configuration_warnings(); } void Range::set_max(double p_max) { shared->max = p_max; set_value(shared->val); shared->emit_changed("max"); } void Range::set_step(double p_step) { shared->step = p_step; shared->emit_changed("step"); } void Range::set_page(double p_page) { shared->page = p_page; set_value(shared->val); shared->emit_changed("page"); } double Range::get_value() const { return shared->val; } double Range::get_min() const { return shared->min; } double Range::get_max() const { return shared->max; } double Range::get_step() const { return shared->step; } double Range::get_page() const { return shared->page; } void Range::set_as_ratio(double p_value) { double v; if (shared->exp_ratio && get_min() >= 0) { double exp_min = get_min() == 0 ? 0.0 : Math::log(get_min()) / Math::log((double)2); double exp_max = Math::log(get_max()) / Math::log((double)2); v = Math::pow(2, exp_min + (exp_max - exp_min) * p_value); } else { double percent = (get_max() - get_min()) * p_value; if (get_step() > 0) { double steps = round(percent / get_step()); v = steps * get_step() + get_min(); } else { v = percent + get_min(); } } v = CLAMP(v, get_min(), get_max()); set_value(v); } double Range::get_as_ratio() const { if (Math::is_equal_approx(get_max(), get_min())) { // Avoid division by zero. return 1.0; } if (shared->exp_ratio && get_min() >= 0) { double exp_min = get_min() == 0 ? 0.0 : Math::log(get_min()) / Math::log((double)2); double exp_max = Math::log(get_max()) / Math::log((double)2); float value = CLAMP(get_value(), shared->min, shared->max); double v = Math::log(value) / Math::log((double)2); return CLAMP((v - exp_min) / (exp_max - exp_min), 0, 1); } else { float value = CLAMP(get_value(), shared->min, shared->max); return CLAMP((value - get_min()) / (get_max() - get_min()), 0, 1); } } void Range::_share(Node *p_range) { Range *r = Object::cast_to<Range>(p_range); ERR_FAIL_COND(!r); share(r); } void Range::share(Range *p_range) { ERR_FAIL_NULL(p_range); p_range->_ref_shared(shared); p_range->_changed_notify(); p_range->_value_changed_notify(); } void Range::unshare() { Shared *nshared = memnew(Shared); nshared->min = shared->min; nshared->max = shared->max; nshared->val = shared->val; nshared->step = shared->step; nshared->page = shared->page; nshared->exp_ratio = shared->exp_ratio; nshared->allow_greater = shared->allow_greater; nshared->allow_lesser = shared->allow_lesser; _unref_shared(); _ref_shared(nshared); } void Range::_ref_shared(Shared *p_shared) { if (shared && p_shared == shared) { return; } _unref_shared(); shared = p_shared; shared->owners.insert(this); } void Range::_unref_shared() { if (shared) { shared->owners.erase(this); if (shared->owners.size() == 0) { memdelete(shared); shared = nullptr; } } } void Range::_bind_methods() { ClassDB::bind_method(D_METHOD("get_value"), &Range::get_value); ClassDB::bind_method(D_METHOD("get_min"), &Range::get_min); ClassDB::bind_method(D_METHOD("get_max"), &Range::get_max); ClassDB::bind_method(D_METHOD("get_step"), &Range::get_step); ClassDB::bind_method(D_METHOD("get_page"), &Range::get_page); ClassDB::bind_method(D_METHOD("get_as_ratio"), &Range::get_as_ratio); ClassDB::bind_method(D_METHOD("set_value", "value"), &Range::set_value); ClassDB::bind_method(D_METHOD("set_min", "minimum"), &Range::set_min); ClassDB::bind_method(D_METHOD("set_max", "maximum"), &Range::set_max); ClassDB::bind_method(D_METHOD("set_step", "step"), &Range::set_step); ClassDB::bind_method(D_METHOD("set_page", "pagesize"), &Range::set_page); ClassDB::bind_method(D_METHOD("set_as_ratio", "value"), &Range::set_as_ratio); ClassDB::bind_method(D_METHOD("set_use_rounded_values", "enabled"), &Range::set_use_rounded_values); ClassDB::bind_method(D_METHOD("is_using_rounded_values"), &Range::is_using_rounded_values); ClassDB::bind_method(D_METHOD("set_exp_ratio", "enabled"), &Range::set_exp_ratio); ClassDB::bind_method(D_METHOD("is_ratio_exp"), &Range::is_ratio_exp); ClassDB::bind_method(D_METHOD("set_allow_greater", "allow"), &Range::set_allow_greater); ClassDB::bind_method(D_METHOD("is_greater_allowed"), &Range::is_greater_allowed); ClassDB::bind_method(D_METHOD("set_allow_lesser", "allow"), &Range::set_allow_lesser); ClassDB::bind_method(D_METHOD("is_lesser_allowed"), &Range::is_lesser_allowed); ClassDB::bind_method(D_METHOD("share", "with"), &Range::_share); ClassDB::bind_method(D_METHOD("unshare"), &Range::unshare); ADD_SIGNAL(MethodInfo("value_changed", PropertyInfo(Variant::FLOAT, "value"))); ADD_SIGNAL(MethodInfo("changed")); ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "min_value"), "set_min", "get_min"); ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "max_value"), "set_max", "get_max"); ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "step"), "set_step", "get_step"); ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "page"), "set_page", "get_page"); ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "value"), "set_value", "get_value"); ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ratio", PROPERTY_HINT_RANGE, "0,1,0.01", PROPERTY_USAGE_NONE), "set_as_ratio", "get_as_ratio"); ADD_PROPERTY(PropertyInfo(Variant::BOOL, "exp_edit"), "set_exp_ratio", "is_ratio_exp"); ADD_PROPERTY(PropertyInfo(Variant::BOOL, "rounded"), "set_use_rounded_values", "is_using_rounded_values"); ADD_PROPERTY(PropertyInfo(Variant::BOOL, "allow_greater"), "set_allow_greater", "is_greater_allowed"); ADD_PROPERTY(PropertyInfo(Variant::BOOL, "allow_lesser"), "set_allow_lesser", "is_lesser_allowed"); } void Range::set_use_rounded_values(bool p_enable) { _rounded_values = p_enable; } bool Range::is_using_rounded_values() const { return _rounded_values; } void Range::set_exp_ratio(bool p_enable) { shared->exp_ratio = p_enable; update_configuration_warnings(); } bool Range::is_ratio_exp() const { return shared->exp_ratio; } void Range::set_allow_greater(bool p_allow) { shared->allow_greater = p_allow; } bool Range::is_greater_allowed() const { return shared->allow_greater; } void Range::set_allow_lesser(bool p_allow) { shared->allow_lesser = p_allow; } bool Range::is_lesser_allowed() const { return shared->allow_lesser; } Range::Range() { shared = memnew(Shared); shared->owners.insert(this); } Range::~Range() { _unref_shared(); }