ui_Layout.hpp

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/*
 
    Plutonium library
 
    @file ui_Layout.hpp
    @brief Contains pu::Layout class, the object used to render within applications
    @author XorTroll
 
    @copyright Plutonium project - an easy-to-use UI framework for Nintendo Switch homebrew
 
*/
 
#pragma once
#include <pu/ui/ui_Container.hpp>
#include <functional>
 
namespace pu::ui {
 
    class Layout : public Container {
        public:
            using OnInputCallback = std::function<void(const u64, const u64, const u64, const TouchPoint)>;
            using RenderCallback = std::function<void()>;
 
            static constexpr Color DefaultBackgroundColor = { 0xE1, 0xE1, 0xE1, 0xFF };
 
        private:
            bool has_image;
            Color over_bg_color;
            TouchPoint sim_touch_pos;
            sdl2::TextureHandle::Ref over_bg_tex;
            OnInputCallback on_ipt;
            std::vector<RenderCallback> render_cbs;
 
        public:
            Layout() : Container(0, 0, render::ScreenWidth, render::ScreenHeight), has_image(false), over_bg_color(DefaultBackgroundColor), sim_touch_pos(), over_bg_tex(), on_ipt(), render_cbs() {}
            PU_SMART_CTOR(Layout)
            virtual ~Layout();
 
            inline bool HasChildren() {
                return !this->elems.empty();
            }
 
            inline void SetOnInput(OnInputCallback on_ipt_cb) {
                this->on_ipt = on_ipt_cb;
            }
 
            inline OnInputCallback GetOnInput() {
                return this->on_ipt;
            }
 
            inline void AddRenderCallback(RenderCallback render_cb) {
                this->render_cbs.push_back(render_cb);
            }
 
            inline std::vector<RenderCallback> &GetRenderCallbacks() {
                return this->render_cbs;
            }
 
            inline bool HasBackgroundImage() {
                return this->over_bg_tex != nullptr;
            }
 
            inline sdl2::TextureHandle::Ref &GetBackgroundImageTexture() {
                return this->over_bg_tex;
            }
 
            inline Color GetBackgroundColor() {
                return this->over_bg_color;
            }
 
            void SetBackgroundImage(sdl2::TextureHandle::Ref bg_tex);
            void ResetBackgroundImage();
            void SetBackgroundColor(const Color clr);
 
            inline void SimulateTouchPosition(const TouchPoint sim_touch_pos) {
                this->sim_touch_pos = sim_touch_pos;
            }
 
            TouchPoint ConsumeSimulatedTouchPosition();
    };
 
}