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/*************************************************************************/
/* gradient.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 "gradient.h"
#include "core/core_string_names.h"
Gradient::Gradient() {
//Set initial gradient transition from black to white
points.resize(2);
points.write[0].color = Color(0, 0, 0, 1);
points.write[0].offset = 0;
points.write[1].color = Color(1, 1, 1, 1);
points.write[1].offset = 1;
}
Gradient::~Gradient() {
}
void Gradient::_bind_methods() {
ClassDB::bind_method(D_METHOD("add_point", "offset", "color"), &Gradient::add_point);
ClassDB::bind_method(D_METHOD("remove_point", "point"), &Gradient::remove_point);
ClassDB::bind_method(D_METHOD("set_offset", "point", "offset"), &Gradient::set_offset);
ClassDB::bind_method(D_METHOD("get_offset", "point"), &Gradient::get_offset);
ClassDB::bind_method(D_METHOD("reverse"), &Gradient::reverse);
ClassDB::bind_method(D_METHOD("set_color", "point", "color"), &Gradient::set_color);
ClassDB::bind_method(D_METHOD("get_color", "point"), &Gradient::get_color);
ClassDB::bind_method(D_METHOD("interpolate", "offset"), &Gradient::get_color_at_offset);
ClassDB::bind_method(D_METHOD("get_point_count"), &Gradient::get_points_count);
ClassDB::bind_method(D_METHOD("set_offsets", "offsets"), &Gradient::set_offsets);
ClassDB::bind_method(D_METHOD("get_offsets"), &Gradient::get_offsets);
ClassDB::bind_method(D_METHOD("set_colors", "colors"), &Gradient::set_colors);
ClassDB::bind_method(D_METHOD("get_colors"), &Gradient::get_colors);
ClassDB::bind_method(D_METHOD("set_interpolation_mode", "interpolation_mode"), &Gradient::set_interpolation_mode);
ClassDB::bind_method(D_METHOD("get_interpolation_mode"), &Gradient::get_interpolation_mode);
ADD_PROPERTY(PropertyInfo(Variant::INT, "interpolation_mode", PROPERTY_HINT_ENUM, "Linear,Constant,Cubic"), "set_interpolation_mode", "get_interpolation_mode");
ADD_GROUP("Raw data", "");
ADD_PROPERTY(PropertyInfo(Variant::PACKED_FLOAT32_ARRAY, "offsets"), "set_offsets", "get_offsets");
ADD_PROPERTY(PropertyInfo(Variant::PACKED_COLOR_ARRAY, "colors"), "set_colors", "get_colors");
BIND_ENUM_CONSTANT(GRADIENT_INTERPOLATE_LINEAR);
BIND_ENUM_CONSTANT(GRADIENT_INTERPOLATE_CONSTANT);
BIND_ENUM_CONSTANT(GRADIENT_INTERPOLATE_CUBIC);
}
Vector<float> Gradient::get_offsets() const {
Vector<float> offsets;
offsets.resize(points.size());
for (int i = 0; i < points.size(); i++) {
offsets.write[i] = points[i].offset;
}
return offsets;
}
Vector<Color> Gradient::get_colors() const {
Vector<Color> colors;
colors.resize(points.size());
for (int i = 0; i < points.size(); i++) {
colors.write[i] = points[i].color;
}
return colors;
}
void Gradient::set_interpolation_mode(Gradient::InterpolationMode p_interp_mode) {
interpolation_mode = p_interp_mode;
emit_signal(CoreStringNames::get_singleton()->changed);
}
Gradient::InterpolationMode Gradient::get_interpolation_mode() {
return interpolation_mode;
}
void Gradient::set_offsets(const Vector<float> &p_offsets) {
points.resize(p_offsets.size());
for (int i = 0; i < points.size(); i++) {
points.write[i].offset = p_offsets[i];
}
is_sorted = false;
emit_signal(CoreStringNames::get_singleton()->changed);
}
void Gradient::set_colors(const Vector<Color> &p_colors) {
if (points.size() < p_colors.size()) {
is_sorted = false;
}
points.resize(p_colors.size());
for (int i = 0; i < points.size(); i++) {
points.write[i].color = p_colors[i];
}
emit_signal(CoreStringNames::get_singleton()->changed);
}
Vector<Gradient::Point> &Gradient::get_points() {
return points;
}
void Gradient::add_point(float p_offset, const Color &p_color) {
Point p;
p.offset = p_offset;
p.color = p_color;
is_sorted = false;
points.push_back(p);
emit_signal(CoreStringNames::get_singleton()->changed);
}
void Gradient::remove_point(int p_index) {
ERR_FAIL_INDEX(p_index, points.size());
ERR_FAIL_COND(points.size() <= 1);
points.remove_at(p_index);
emit_signal(CoreStringNames::get_singleton()->changed);
}
void Gradient::reverse() {
for (int i = 0; i < points.size(); i++) {
points.write[i].offset = 1.0 - points[i].offset;
}
_update_sorting();
emit_signal(CoreStringNames::get_singleton()->changed);
}
void Gradient::set_points(Vector<Gradient::Point> &p_points) {
points = p_points;
is_sorted = false;
emit_signal(CoreStringNames::get_singleton()->changed);
}
void Gradient::set_offset(int pos, const float offset) {
ERR_FAIL_INDEX(pos, points.size());
_update_sorting();
points.write[pos].offset = offset;
is_sorted = false;
emit_signal(CoreStringNames::get_singleton()->changed);
}
float Gradient::get_offset(int pos) {
ERR_FAIL_INDEX_V(pos, points.size(), 0.0);
_update_sorting();
return points[pos].offset;
}
void Gradient::set_color(int pos, const Color &color) {
ERR_FAIL_INDEX(pos, points.size());
_update_sorting();
points.write[pos].color = color;
emit_signal(CoreStringNames::get_singleton()->changed);
}
Color Gradient::get_color(int pos) {
ERR_FAIL_INDEX_V(pos, points.size(), Color());
_update_sorting();
return points[pos].color;
}
int Gradient::get_points_count() const {
return points.size();
}
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