/*************************************************************************/ /* range.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* http://www.godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2017 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 "range.h" void Range::_value_changed_notify() { _value_changed(shared->val); emit_signal("value_changed",shared->val); update(); _change_notify("range/value"); } void Range::Shared::emit_value_changed() { for (Set::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("changed",shared->val); update(); _change_notify(p_what); } void Range::Shared::emit_changed(const char *p_what) { for (Set::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(_rounded_values){ p_val = Math::round(p_val); } if (p_val>shared->max-shared->page) p_val=shared->max-shared->page; if (p_valmin) 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("range/min"); } void Range::set_max(double p_max) { shared->max=p_max; set_value(shared->val); shared->emit_changed("range/max"); } void Range::set_step(double p_step) { shared->step=p_step; shared->emit_changed("range/step"); } void Range::set_page(double p_page) { shared->page=p_page; set_value(shared->val); shared->emit_changed("range/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 = 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(); } } set_value( v ); } double Range::get_as_ratio() const { if (shared->exp_ratio && get_min()>0) { double exp_min = Math::log(get_min())/Math::log((double)2); double exp_max = Math::log(get_max())/Math::log((double)2); double v = Math::log(get_value())/Math::log((double)2); return (v - exp_min) / (exp_max - exp_min); } else { return (get_value() - get_min()) / (get_max() - get_min()); } } void Range::_share(Node *p_range) { Range * r = p_range->cast_to(); 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; _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() { shared->owners.erase(this); if (shared->owners.size()==0) { memdelete(shared); shared=NULL; } } 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("share","with"),&Range::_share); ClassDB::bind_method(D_METHOD("unshare"),&Range::unshare); ADD_SIGNAL( MethodInfo("value_changed", PropertyInfo(Variant::REAL,"value"))); ADD_SIGNAL( MethodInfo("changed")); ADD_PROPERTY( PropertyInfo( Variant::REAL, "min_value" ), "set_min", "get_min") ; ADD_PROPERTY( PropertyInfo( Variant::REAL, "max_value" ), "set_max", "get_max") ; ADD_PROPERTY( PropertyInfo( Variant::REAL, "step" ), "set_step", "get_step") ; ADD_PROPERTY( PropertyInfo( Variant::REAL, "page" ), "set_page", "get_page") ; ADD_PROPERTY( PropertyInfo( Variant::REAL, "value" ), "set_value", "get_value") ; 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") ; } 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; } bool Range::is_ratio_exp() const { return shared->exp_ratio; } Range::Range() { shared = memnew(Shared); shared->min=0; shared->max=100; shared->val= shared->step=1; shared->page=0; shared->owners.insert(this); shared->exp_ratio=false; _rounded_values = false; } Range::~Range() { _unref_shared(); }