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d95794ec8a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
361 lines
11 KiB
C++
361 lines
11 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) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 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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PackedStringArray Range::get_configuration_warnings() const {
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PackedStringArray warnings = Node::get_configuration_warnings();
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if (shared->exp_ratio && shared->min <= 0) {
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warnings.push_back(RTR("If \"Exp Edit\" is enabled, \"Min Value\" must be greater than 0."));
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}
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return warnings;
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}
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void Range::_value_changed(double p_value) {
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GDVIRTUAL_CALL(_value_changed, p_value);
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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(SNAME("value_changed"), shared->val);
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queue_redraw();
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}
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void Range::Shared::emit_value_changed() {
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for (Range *E : owners) {
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Range *r = E;
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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(SNAME("changed"));
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queue_redraw();
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}
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void Range::Shared::emit_changed(const char *p_what) {
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for (Range *E : owners) {
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Range *r = E;
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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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double prev_val = shared->val;
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set_value_no_signal(p_val);
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if (shared->val != prev_val) {
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shared->emit_value_changed();
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}
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}
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void Range::set_value_no_signal(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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}
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void Range::set_min(double p_min) {
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if (shared->min == p_min) {
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return;
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}
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shared->min = p_min;
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shared->max = MAX(shared->max, shared->min);
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shared->page = CLAMP(shared->page, 0, shared->max - shared->min);
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set_value(shared->val);
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shared->emit_changed("min");
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update_configuration_warnings();
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}
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void Range::set_max(double p_max) {
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double max_validated = MAX(p_max, shared->min);
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if (shared->max == max_validated) {
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return;
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}
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shared->max = max_validated;
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shared->page = CLAMP(shared->page, 0, shared->max - shared->min);
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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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if (shared->step == p_step) {
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return;
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}
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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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double page_validated = CLAMP(p_page, 0, shared->max - shared->min);
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if (shared->page == page_validated) {
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return;
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}
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shared->page = page_validated;
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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_value_no_signal", "value"), &Range::set_value_no_signal);
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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::FLOAT, "value")));
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ADD_SIGNAL(MethodInfo("changed"));
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "min_value"), "set_min", "get_min");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "max_value"), "set_max", "get_max");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "step"), "set_step", "get_step");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "page"), "set_page", "get_page");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "value"), "set_value", "get_value");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ratio", PROPERTY_HINT_RANGE, "0,1,0.01", PROPERTY_USAGE_NONE), "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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GDVIRTUAL_BIND(_value_changed, "new_value");
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ADD_LINKED_PROPERTY("min_value", "value");
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ADD_LINKED_PROPERTY("min_value", "max_value");
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ADD_LINKED_PROPERTY("min_value", "page");
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ADD_LINKED_PROPERTY("max_value", "value");
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ADD_LINKED_PROPERTY("max_value", "page");
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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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if (shared->exp_ratio == p_enable) {
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return;
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}
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shared->exp_ratio = p_enable;
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update_configuration_warnings();
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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->owners.insert(this);
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}
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Range::~Range() {
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_unref_shared();
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}
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