Crafter.Graphics/interfaces/Crafter.Graphics-UiElement.cppm

/*
Crafter®.Graphics
Copyright (C) 2025 Catcrafts®
Catcrafts.net

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3.0 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
*/

export module Crafter.Graphics:UiElement;
import std;
import Crafter.Event;
import :Types;

namespace Crafter {
    export class Font;
    export class UiElement {
    public:
        Event<MouseMoveEvent> onMouseMove;
        Event<MouseMoveEvent> onMouseEnter;
        Event<MouseMoveEvent> onMouseLeave;
        Event<MousePoint> onMouseRightClick;
        Event<MousePoint> onMouseLeftClick;
        Event<MousePoint> onMouseRightHold;
        Event<MousePoint> onMouseLeftHold;
        Event<MousePoint> onMouseRightRelease;
        Event<MousePoint> onMouseLeftRelease;
        float z;
        float anchorX;
        float anchorY;
        bool useRelativeSize;
        bool ignoreScaling;
        std::uint32_t bufferWidth;
        std::uint32_t bufferHeight;
        std::uint32_t absoluteWidth;
        std::uint32_t absoluteHeight;
        float relativeWidth;
        float relativeHeight;
        float anchorOffsetX;
        float anchorOffsetY;
        std::vector<Pixel_BU8_GU8_RU8_AU8> buffer;
        std::vector<std::unique_ptr<UiElement>> children;

        UiElement(float anchorX, float anchorY, float relativeWidth, float relativeHeight, float anchorOffsetX = 0.5,  float anchorOffsetY = 0.5,  float z = 0, bool ignoreScaling = false);
        UiElement(float anchorX, float anchorY, std::uint32_t bufferWidth, std::uint32_t bufferHeight, std::uint32_t absoluteWidth, std::uint32_t absoluteHeight, float anchorOffsetX = 0.5,  float anchorOffsetY = 0.5,  float z = 0, bool ignoreScaling = false);
        UiElement(float anchorX, float anchorY, std::uint32_t bufferWidth, std::uint32_t bufferHeight, float relativeWidth, float relativeHeight, float anchorOffsetX = 0.5,  float anchorOffsetY = 0.5,  float z = 0, bool ignoreScaling = false);
        UiElement(const std::filesystem::path& image, float anchorX, float anchorY, float relativeWidth, float relativeHeight, float anchorOffsetX = 0.5,  float anchorOffsetY = 0.5,  float z = 0, bool ignoreScaling = false);
        UiElement(UiElement&&) noexcept = default;
        UiElement& operator=(UiElement&&) noexcept = default;
    };

    export class TextElement : public UiElement {
    public:
        TextElement(const std::string_view text, float size, Pixel_BU8_GU8_RU8_AU8 color, const Font& font, float anchorX, float anchorY, float relativeWidth, float relativeHeight, float anchorOffsetX = 0.5,  float anchorOffsetY = 0.5,  float z = 0, bool ignoreScaling = false);
        void RenderText(const std::string_view text, float size, Pixel_BU8_GU8_RU8_AU8 color, const Font& font);
    };
}