mirror of
https://github.com/godotengine/godot
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228 lines
8 KiB
C++
228 lines
8 KiB
C++
/**************************************************************************/
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/* gradient.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 "gradient.h"
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Gradient::Gradient() {
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//Set initial gradient transition from black to white
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points.resize(2);
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points.write[0].color = Color(0, 0, 0, 1);
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points.write[0].offset = 0;
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points.write[1].color = Color(1, 1, 1, 1);
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points.write[1].offset = 1;
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}
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Gradient::~Gradient() {
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}
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void Gradient::_bind_methods() {
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ClassDB::bind_method(D_METHOD("add_point", "offset", "color"), &Gradient::add_point);
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ClassDB::bind_method(D_METHOD("remove_point", "point"), &Gradient::remove_point);
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ClassDB::bind_method(D_METHOD("set_offset", "point", "offset"), &Gradient::set_offset);
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ClassDB::bind_method(D_METHOD("get_offset", "point"), &Gradient::get_offset);
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ClassDB::bind_method(D_METHOD("reverse"), &Gradient::reverse);
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ClassDB::bind_method(D_METHOD("set_color", "point", "color"), &Gradient::set_color);
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ClassDB::bind_method(D_METHOD("get_color", "point"), &Gradient::get_color);
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ClassDB::bind_method(D_METHOD("sample", "offset"), &Gradient::get_color_at_offset);
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ClassDB::bind_method(D_METHOD("get_point_count"), &Gradient::get_point_count);
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ClassDB::bind_method(D_METHOD("set_offsets", "offsets"), &Gradient::set_offsets);
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ClassDB::bind_method(D_METHOD("get_offsets"), &Gradient::get_offsets);
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ClassDB::bind_method(D_METHOD("set_colors", "colors"), &Gradient::set_colors);
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ClassDB::bind_method(D_METHOD("get_colors"), &Gradient::get_colors);
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ClassDB::bind_method(D_METHOD("set_interpolation_mode", "interpolation_mode"), &Gradient::set_interpolation_mode);
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ClassDB::bind_method(D_METHOD("get_interpolation_mode"), &Gradient::get_interpolation_mode);
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ClassDB::bind_method(D_METHOD("set_interpolation_color_space", "interpolation_color_space"), &Gradient::set_interpolation_color_space);
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ClassDB::bind_method(D_METHOD("get_interpolation_color_space"), &Gradient::get_interpolation_color_space);
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ADD_GROUP("Interpolation", "interpolation_");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "interpolation_mode", PROPERTY_HINT_ENUM, "Linear,Constant,Cubic"), "set_interpolation_mode", "get_interpolation_mode");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "interpolation_color_space", PROPERTY_HINT_ENUM, "sRGB,Linear sRGB,Oklab"), "set_interpolation_color_space", "get_interpolation_color_space");
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ADD_GROUP("Raw Data", "");
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ADD_PROPERTY(PropertyInfo(Variant::PACKED_FLOAT32_ARRAY, "offsets"), "set_offsets", "get_offsets");
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ADD_PROPERTY(PropertyInfo(Variant::PACKED_COLOR_ARRAY, "colors"), "set_colors", "get_colors");
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BIND_ENUM_CONSTANT(GRADIENT_INTERPOLATE_LINEAR);
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BIND_ENUM_CONSTANT(GRADIENT_INTERPOLATE_CONSTANT);
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BIND_ENUM_CONSTANT(GRADIENT_INTERPOLATE_CUBIC);
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BIND_ENUM_CONSTANT(GRADIENT_COLOR_SPACE_SRGB);
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BIND_ENUM_CONSTANT(GRADIENT_COLOR_SPACE_LINEAR_SRGB);
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BIND_ENUM_CONSTANT(GRADIENT_COLOR_SPACE_OKLAB);
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}
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void Gradient::_validate_property(PropertyInfo &p_property) const {
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if (p_property.name == "interpolation_color_space" && interpolation_mode == GRADIENT_INTERPOLATE_CONSTANT) {
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p_property.usage = PROPERTY_USAGE_NO_EDITOR;
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}
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}
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Vector<float> Gradient::get_offsets() const {
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Vector<float> offsets;
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offsets.resize(points.size());
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for (int i = 0; i < points.size(); i++) {
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offsets.write[i] = points[i].offset;
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}
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return offsets;
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}
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Vector<Color> Gradient::get_colors() const {
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Vector<Color> colors;
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colors.resize(points.size());
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for (int i = 0; i < points.size(); i++) {
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colors.write[i] = points[i].color;
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}
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return colors;
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}
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void Gradient::set_interpolation_mode(Gradient::InterpolationMode p_interp_mode) {
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if (p_interp_mode == interpolation_mode) {
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return;
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}
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interpolation_mode = p_interp_mode;
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emit_changed();
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notify_property_list_changed();
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}
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Gradient::InterpolationMode Gradient::get_interpolation_mode() {
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return interpolation_mode;
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}
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void Gradient::set_interpolation_color_space(Gradient::ColorSpace p_color_space) {
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if (p_color_space == interpolation_color_space) {
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return;
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}
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interpolation_color_space = p_color_space;
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emit_changed();
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}
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Gradient::ColorSpace Gradient::get_interpolation_color_space() {
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return interpolation_color_space;
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}
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void Gradient::set_offsets(const Vector<float> &p_offsets) {
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points.resize(p_offsets.size());
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for (int i = 0; i < points.size(); i++) {
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points.write[i].offset = p_offsets[i];
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}
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is_sorted = false;
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emit_changed();
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}
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void Gradient::set_colors(const Vector<Color> &p_colors) {
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if (points.size() < p_colors.size()) {
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is_sorted = false;
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}
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points.resize(p_colors.size());
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for (int i = 0; i < points.size(); i++) {
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points.write[i].color = p_colors[i];
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}
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emit_changed();
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}
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Vector<Gradient::Point> &Gradient::get_points() {
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return points;
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}
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void Gradient::add_point(float p_offset, const Color &p_color) {
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Point p;
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p.offset = p_offset;
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p.color = p_color;
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is_sorted = false;
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points.push_back(p);
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emit_changed();
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}
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void Gradient::remove_point(int p_index) {
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ERR_FAIL_INDEX(p_index, points.size());
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ERR_FAIL_COND(points.size() <= 1);
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points.remove_at(p_index);
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emit_changed();
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}
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void Gradient::reverse() {
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for (int i = 0; i < points.size(); i++) {
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points.write[i].offset = 1.0 - points[i].offset;
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}
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is_sorted = false;
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_update_sorting();
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emit_changed();
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}
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void Gradient::set_points(const Vector<Gradient::Point> &p_points) {
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points = p_points;
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is_sorted = false;
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emit_changed();
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}
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void Gradient::set_offset(int pos, const float offset) {
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ERR_FAIL_INDEX(pos, points.size());
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_update_sorting();
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points.write[pos].offset = offset;
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is_sorted = false;
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emit_changed();
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}
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float Gradient::get_offset(int pos) {
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ERR_FAIL_INDEX_V(pos, points.size(), 0.0);
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_update_sorting();
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return points[pos].offset;
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}
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void Gradient::set_color(int pos, const Color &color) {
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ERR_FAIL_INDEX(pos, points.size());
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_update_sorting();
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points.write[pos].color = color;
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emit_changed();
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}
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Color Gradient::get_color(int pos) {
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ERR_FAIL_INDEX_V(pos, points.size(), Color());
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_update_sorting();
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return points[pos].color;
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}
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int Gradient::get_point_count() const {
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return points.size();
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}
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