300 lines
8.0 KiB
C++
300 lines
8.0 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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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
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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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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("range/value");
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}
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void Range::Shared::emit_value_changed() {
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for (Set<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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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",shared->val);
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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 (Set<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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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(_rounded_values){
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p_val = Math::round(p_val);
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}
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if (p_val>shared->max-shared->page)
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p_val=shared->max-shared->page;
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if (p_val<shared->min)
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p_val=shared->min;
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if (shared->val==p_val)
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return;
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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("range/min");
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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("range/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("range/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("range/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_unit_value(double p_value) {
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double v;
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if (shared->exp_unit_value && get_min()>0) {
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double exp_min = Math::log(get_min())/Math::log(2);
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double exp_max = Math::log(get_max())/Math::log(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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set_value( v );
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}
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double Range::get_unit_value() const {
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if (shared->exp_unit_value && get_min()>0) {
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double exp_min = Math::log(get_min())/Math::log(2);
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double exp_max = Math::log(get_max())/Math::log(2);
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double v = Math::log(get_value())/Math::log(2);
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return (v - exp_min) / (exp_max - exp_min);
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} else {
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return (get_value() - get_min()) / (get_max() - get_min());
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}
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}
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void Range::_share(Node *p_range) {
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Range * r = p_range->cast_to<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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_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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_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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shared->owners.erase(this);
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if (shared->owners.size()==0) {
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memdelete(shared);
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shared=NULL;
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}
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}
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void Range::_bind_methods() {
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ClassDB::bind_method(_MD("get_value"),&Range::get_value);
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ClassDB::bind_method(_MD("get_min"),&Range::get_min);
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ClassDB::bind_method(_MD("get_max"),&Range::get_max);
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ClassDB::bind_method(_MD("get_step"),&Range::get_step);
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ClassDB::bind_method(_MD("get_page"),&Range::get_page);
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ClassDB::bind_method(_MD("get_unit_value"),&Range::get_unit_value);
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ClassDB::bind_method(_MD("set_value","value"),&Range::set_value);
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ClassDB::bind_method(_MD("set_min","minimum"),&Range::set_min);
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ClassDB::bind_method(_MD("set_max","maximum"),&Range::set_max);
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ClassDB::bind_method(_MD("set_step","step"),&Range::set_step);
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ClassDB::bind_method(_MD("set_page","pagesize"),&Range::set_page);
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ClassDB::bind_method(_MD("set_unit_value","value"),&Range::set_unit_value);
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ClassDB::bind_method(_MD("set_rounded_values","enabled"),&Range::set_rounded_values);
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ClassDB::bind_method(_MD("is_rounded_values"),&Range::is_rounded_values);
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ClassDB::bind_method(_MD("set_exp_unit_value","enabled"),&Range::set_exp_unit_value);
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ClassDB::bind_method(_MD("is_unit_value_exp"),&Range::is_unit_value_exp);
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ClassDB::bind_method(_MD("share","with"),&Range::_share);
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ClassDB::bind_method(_MD("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" ), _SCS("set_min"), _SCS("get_min") );
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ADD_PROPERTY( PropertyInfo( Variant::REAL, "max_value" ), _SCS("set_max"), _SCS("get_max") );
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ADD_PROPERTY( PropertyInfo( Variant::REAL, "step" ), _SCS("set_step"), _SCS("get_step") );
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ADD_PROPERTY( PropertyInfo( Variant::REAL, "page" ), _SCS("set_page"), _SCS("get_page") );
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ADD_PROPERTY( PropertyInfo( Variant::REAL, "value" ), _SCS("set_value"), _SCS("get_value") );
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ADD_PROPERTY( PropertyInfo( Variant::BOOL, "exp_edit" ), _SCS("set_exp_unit_value"), _SCS("is_unit_value_exp") );
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ADD_PROPERTY( PropertyInfo( Variant::BOOL, "rounded" ), _SCS("set_rounded_values"), _SCS("is_rounded_values") );
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}
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void Range::set_rounded_values(bool p_enable) {
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_rounded_values = p_enable;
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}
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bool Range::is_rounded_values() const {
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return _rounded_values;
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}
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void Range::set_exp_unit_value(bool p_enable) {
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shared->exp_unit_value=p_enable;
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}
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bool Range::is_unit_value_exp() const {
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return shared->exp_unit_value;
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}
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Range::Range()
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{
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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=
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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_unit_value=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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