godot/scene/gui/range.cpp
reduz 746dddc067 Replace most uses of Map by HashMap
* Map is unnecessary and inefficient in almost every case.
* Replaced by the new HashMap.
* Renamed Map to RBMap and Set to RBSet for cases that still make sense
  (order matters) but use is discouraged.

There were very few cases where replacing by HashMap was undesired because
keeping the key order was intended.
I tried to keep those (as RBMap) as much as possible, but might have missed
some. Review appreciated!
2022-05-16 10:37:48 +02:00

336 lines
10 KiB
C++

/*************************************************************************/
/* range.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 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(RTR("If \"Exp Edit\" is enabled, \"Min Value\" must be greater than 0."));
}
return warnings;
}
void Range::_value_changed(double p_value) {
GDVIRTUAL_CALL(_value_changed, p_value);
}
void Range::_value_changed_notify() {
_value_changed(shared->val);
emit_signal(SNAME("value_changed"), shared->val);
update();
}
void Range::Shared::emit_value_changed() {
for (RBSet<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::_validate_values() {
shared->max = MAX(shared->max, shared->min);
shared->page = CLAMP(shared->page, 0, shared->max - shared->min);
}
void Range::Shared::emit_changed(const char *p_what) {
for (RBSet<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);
_validate_values();
shared->emit_changed("min");
update_configuration_warnings();
}
void Range::set_max(double p_max) {
shared->max = p_max;
set_value(shared->val);
_validate_values();
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);
_validate_values();
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");
GDVIRTUAL_BIND(_value_changed, "new_value");
ADD_LINKED_PROPERTY("min_value", "value");
ADD_LINKED_PROPERTY("min_value", "max_value");
ADD_LINKED_PROPERTY("min_value", "page");
ADD_LINKED_PROPERTY("max_value", "value");
ADD_LINKED_PROPERTY("max_value", "page");
}
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();
}