DeviceDrawable.h

 
#ifndef TCLIBRARYDEV_DEVICEDRAWABLE_H
#define TCLIBRARYDEV_DEVICEDRAWABLE_H
 
#include <PlatformDetermination.h>
#include "GfxMenuConfig.h"
#include "DrawingPrimitives.h"
 
class UnicodeFontHandler;
 
namespace tcgfx {
    class DeviceDrawable {
    public:
        enum SubDeviceType {
            NO_SUB_DEVICE, SUB_DEVICE_4BPP, SUB_DEVICE_2BPP
        };
    protected:
        UnicodeFontHandler *fontHandler = nullptr;
        color_t backgroundColor = 0, drawColor = 0;
        SubDeviceType subDeviceType = NO_SUB_DEVICE;
    public:
        virtual ~DeviceDrawable() = default;
        virtual Coord getDisplayDimensions() = 0;

        virtual DeviceDrawable *
        getSubDeviceFor(const Coord &where, const Coord &size, const color_t *palette, int paletteSize) = 0;

        virtual void setPaletteEntry(size_t index, color_t col) {
        }
 

        void drawText(const Coord &where, const void *font, int mag, const char *text);
 
        virtual void internalDrawText(const Coord &where, const void *font, int mag, const char *text) = 0;

        virtual void drawBitmap(const Coord &where, const DrawableIcon *icon, bool selected) = 0;

        virtual void drawXBitmap(const Coord &where, const Coord &size, const uint8_t *data) = 0;

        virtual void drawBox(const Coord &where, const Coord &size, bool filled) = 0;

        virtual void drawCircle(const Coord &where, int radius, bool filled) = 0;

        virtual void drawPolygon(const Coord points[], int numPoints, bool filled) = 0;

        virtual color_t getUnderlyingColor(color_t col) { return col; }

        virtual void drawRoundRect(const Coord& where, const Coord& size, int radius, bool filled) {}
 

        virtual void transaction(bool isStarting, bool redrawNeeded) = 0;

        virtual Coord internalTextExtents(const void *font, int mag, const char *text, int *baseline) = 0;

        Coord textExtents(const void *font, int mag, const char *text, int *baseline);

        virtual void drawPixel(uint16_t x, uint16_t y) = 0;

        Coord textExtents(const void *font, int mag, const char *text) {
            return textExtents(font, mag, text, nullptr);
        }

        void startDraw() {
            transaction(true, false);
        }

        void endDraw(bool needsDrawing = true) {
            transaction(false, needsDrawing);
        }

        void setColors(color_t fg, color_t bg) {
            backgroundColor = getUnderlyingColor(bg);
            drawColor = getUnderlyingColor(fg);
        }

        void setDrawColor(color_t fg) { drawColor = getUnderlyingColor(fg); }

        void enableTcUnicode() { if (fontHandler == nullptr) fontHandler = createFontHandler(); }

        bool isTcUnicodeEnabled() { return fontHandler != nullptr; }

        UnicodeFontHandler *getUnicodeHandler(bool enableIfNeeded = true);

        void setFontHandler(UnicodeFontHandler* handler) {fontHandler = handler;}

        SubDeviceType getSubDeviceType() { return subDeviceType; }
 
    protected:
        virtual UnicodeFontHandler *createFontHandler();

        void setSubDeviceType(SubDeviceType s) { subDeviceType = s; }
    };
 
    void setTcFontAccordingToMag(UnicodeFontHandler* handler, const void* font, int mag);
}
 
#endif //TCLIBRARYDEV_DEVICEDRAWABLE_H