Color.h

/*
 * AUI Framework - Declarative UI toolkit for modern C++20
 * Copyright (C) 2020-2025 Alex2772 and Contributors
 *
 * SPDX-License-Identifier: MPL-2.0
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
 
//
// Created by Alex2772 on 12/5/2021.
//
 
#pragma once
 
 
#include <AUI/Common/IStringable.h>
#include "AUI/Test/UI/ScreenshotAnalyzer.h"
 
struct ViewAssertionAverageColor {
   AColor mColor;
   aui::float_within_0_1 mInaccuracy;
 
   ViewAssertionAverageColor(const AColor& color, aui::float_within_0_1 inaccuracy = 0.1f) : mColor(color), mInaccuracy(inaccuracy) {}
 
   bool operator()(const _<AView>& v) {
       glm::vec3 average(ScreenshotAnalyzer::makeScreenshot().clip(v).averageColor());
       auto d = glm::length2(average - glm::vec3(mColor)) / 3;
       return d <= mInaccuracy;
   }
};

using averageColor = ViewAssertionAverageColor;
 
struct ViewAssertionPixelColorAt {
   using RelativePosition = glm::vec<2, aui::float_within_0_1>;
   RelativePosition mRelativePosition;
   AColor mColor;
   aui::float_within_0_1 mInaccuracy;
 
   ViewAssertionPixelColorAt(RelativePosition relativePosition, const AColor& color, aui::float_within_0_1 inaccuracy = 0.1f): mRelativePosition(relativePosition), mColor(color), mInaccuracy(inaccuracy) {}
 
   bool operator()(const _<AView>& v) {
       auto screenshot = ScreenshotAnalyzer::makeScreenshot().clip(v);
       auto mappedPos = glm::uvec2(glm::vec2(screenshot.image().size() - 1u) * glm::vec2(mRelativePosition));
       auto target = glm::vec3(screenshot.image().get(glm::min(mappedPos, screenshot.image().size() - 1u)));
       auto d = glm::length2(target - glm::vec3(mColor)) / 3;
       return d <= mInaccuracy;
   }
};

using pixelColorAt = ViewAssertionPixelColorAt;

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