IDrawable.h

/*
 * AUI Framework - Declarative UI toolkit for modern C++20
 * Copyright (C) 2020-2024 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/.
 */
 
#pragma once
 
#include <glm/glm.hpp>
#include <AUI/Util/Cache.h>
#include <AUI/Url/AUrl.h>
#include <AUI/Enum/Repeat.h>
#include <AUI/Enum/ImageRendering.h>
#include <AUI/Image/AImage.h>
 
class IRenderer;
 
class IDrawable
{
    friend class AImageLoaderRegistry;
 
    class Cache;
    friend class ::Cache<IDrawable, Cache, AUrl>;
    friend class AImageLoaderRegistry;
    class Cache: public ::Cache<IDrawable, Cache, AUrl> {
    public:
        static Cache& inst();
    protected:
        _<IDrawable> load(const AUrl& key) override;
    };
 
public:
 
    struct Params {
        glm::vec2 offset = {0.f, 0.f};
        glm::vec2 size;
        AOptional<glm::vec2> cropUvTopLeft;
        AOptional<glm::vec2> cropUvBottomRight;
 
        Repeat repeat = Repeat::NONE;
        ImageRendering imageRendering;
        AOptional<glm::vec2> renderingSize;
    };
 
    virtual AImage rasterize(glm::ivec2 imageSize);
 
    virtual void draw(IRenderer& render, const IDrawable::Params& params) = 0;
 
    
    virtual glm::ivec2 getSizeHint() = 0;
 
 
    virtual bool isDpiDependent() const
    {
        return false;
    }
 
 
    API_AUI_VIEWS static _<IDrawable> fromUrl(const AUrl& url) noexcept;
};