DrawableTouchCalibrator.h

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/*
 * Copyright (c) 2018 https://www.thecoderscorner.com (Dave Cherry).
 * This product is licensed under an Apache license, see the LICENSE file in the top-level directory.
 */

 
#ifndef TCMENU_DRAWABLETOUCHCALIBRATOR_H
#define TCMENU_DRAWABLETOUCHCALIBRATOR_H
 
#include <PlatformDetermination.h>
#include "../graphics/GraphicsDeviceRenderer.h"
#include "../graphics/MenuTouchScreenEncoder.h"
 
namespace tcextras {

    class TouchCalibrationManager {
    public:
        virtual bool loadCalibration() = 0;
        virtual void saveCalibration() = 0;
        virtual void reCalibrateNow() = 0;
    };

    typedef void (*IoaCalibrationScreenPrep)(bool starting);

    class IoaTouchScreenCalibrator : public CustomDrawing, TouchCalibrationManager {
    private:
        const uint16_t calibrationMagicIoa = 0xd00d;
        tcgfx::DeviceDrawable *drawable;
        tcgfx::MenuTouchScreenManager *touchScreen;
        tcgfx::GraphicsDeviceRenderer* renderer;
        CustomDrawing* lastDrawing = nullptr;
        uint16_t romPos;
        int oldX = 0, oldY = 0;
        iotouch::CalibrationHandler calibrationHandler {};
        IoaCalibrationScreenPrep screenPrep = nullptr;
        bool needsRedrawing = false;
 
    public:
        explicit IoaTouchScreenCalibrator(tcgfx::MenuTouchScreenManager *touchScreen, tcgfx::GraphicsDeviceRenderer* renderer, uint16_t romPos)
                : drawable(nullptr), touchScreen(touchScreen), renderer(renderer), romPos(romPos) {
        }

        void initCalibration(IoaCalibrationScreenPrep screenPrepFn, bool presentUiUninitialised) {
            this->screenPrep = screenPrepFn;
            if(!loadCalibration() && presentUiUninitialised) {
                reCalibrateNow();
            }
        }

        bool loadCalibration() override;

        void saveCalibration() override;

        void reCalibrateNow() override;
                
        void reset() override {}
        void started(BaseMenuRenderer *currentRenderer) override;
        void renderLoop(unsigned int currentValue, RenderPressMode userClick) override;
 
        void giveItBack();
    };
} // namespace tcextras
 
#endif // TCMENU_DRAWABLETOUCHCALIBRATOR_H