DisplayInterface.hpp

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#pragma once
 
#include <AH/Containers/LinkedList.hpp>
#include <Def/Def.hpp>
#include <Print.h>
 
BEGIN_CS_NAMESPACE
 
class DisplayInterface : public Print, public DoublyLinkable<DisplayInterface> {
  protected:
    DisplayInterface() { elements.append(this); }
 
  public:
    // Note to self:    don't forget to make destructor = default
    //                  instead of deleting it altogether
    virtual ~DisplayInterface() { elements.remove(this); }
 
    virtual void begin();
 
    virtual void clear() = 0;
    virtual void drawBackground(){};
    virtual void display() = 0;
 
    virtual void drawPixel(int16_t x, int16_t y, uint16_t color) = 0;
 
    virtual void setTextColor(uint16_t color) = 0;
    virtual void setTextSize(uint8_t size) = 0;
    virtual void setCursor(int16_t x, int16_t y) = 0;
 
    size_t write(uint8_t c) override = 0;
 
    virtual void drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1,
                          uint16_t color) = 0;
    virtual void drawFastVLine(int16_t x, int16_t y, int16_t h,
                               uint16_t color) = 0;
    virtual void drawFastHLine(int16_t x, int16_t y, int16_t w,
                               uint16_t color) = 0;
 
    virtual void drawXBitmap(int16_t x, int16_t y, const uint8_t bitmap[],
                             int16_t w, int16_t h, uint16_t color) = 0;
 
    virtual void fillRect(int16_t x, int16_t y, int16_t w, int16_t h,
                          uint16_t color);
 
    virtual void drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
 
    virtual void fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
 
    static void beginAll();
 
    void enable() {
        if (isEnabled()) {
            ERROR(F("Error: This display is already enabled."), 0x1214);
            return;
        }
        elements.append(this);
    }
 
    void disable() {
        if (!isEnabled()) {
            ERROR(F("Error: This display is already disabled."), 0x1215);
            return;
        }
        elements.remove(this);
    }
 
    bool isEnabled() { return elements.couldContain(this); }
 
    void clearAndDrawBackground() {
        clear();
        drawBackground();
    }
 
  private:
    static DoublyLinkedList<DisplayInterface> elements;
};
 
END_CS_NAMESPACE