st7735_matrix.h

// st7735_matrix.h -  ST7735B and ST7735R TFT module driver
 
#pragma once
 
#include "Adafruit_ST7735.h"
 
namespace ustd {
 
class St7735Matrix : public Adafruit_ST7735 {
  protected:
    uint8_t hardware;
    uint8_t rotation;
 
  public:
    St7735Matrix(uint8_t csPin, uint8_t dcPin, uint8_t rsPin, uint8_t hardware, uint8_t rotation)
        : Adafruit_ST7735(csPin, dcPin, rsPin), hardware(hardware), rotation(rotation) {
        textbgcolor = ST77XX_BLACK;
        textcolor = ST77XX_WHITE;
    }
 
    void begin() {
        initR(hardware);
        fillScreen(textbgcolor);
        setRotation(rotation);
    }
 
    inline bool getTextWrap() const {
        return wrap;
    }
 
    inline int16_t getCursorX() const {
        return cursor_x;
    }
 
    inline int16_t getCursorY() const {
        return cursor_y;
    };
 
    inline uint16_t getTextColor() const {
        return textcolor;
    }
 
    inline uint16_t getTextBackground() const {
        return textbgcolor;
    }
 
    void getCharBounds(unsigned char c, int16_t *x, int16_t *y, int16_t *minx, int16_t *miny,
                       int16_t *maxx, int16_t *maxy) {
        charBounds(c, x, y, minx, miny, maxx, maxy);
    }
 
    bool printFormatted(int16_t x, int16_t y, int16_t w, int16_t align, String content,
                        uint8_t baseLine, uint8_t yAdvance = 0) {
        int16_t xx = 0, yy = 0;
        uint16_t ww = 0, hh = 0;
        bool old_wrap = wrap;
        wrap = false;
        getTextBounds(content, 0, 0, &xx, &yy, &ww, &hh);
        wrap = old_wrap;
 
        switch (align) {
        default:
        case 0:
            // left
            xx = 0;
            break;
        case 1:
            // center
            xx = (w - ww) / 2;
            break;
        case 2:
            // right
            xx = w - ww;
            break;
        }
        if (yAdvance && (hh % yAdvance)) {
            hh = ((hh / yAdvance) + 1) * yAdvance;
        }
        GFXcanvas16 tmp(w, hh);
        if (gfxFont) {
            tmp.setFont(gfxFont);
        }
        tmp.fillScreen(textbgcolor);
        tmp.setTextWrap(false);
        tmp.setCursor(xx, baseLine ? baseLine : -1 * yy);
        tmp.setTextColor(textcolor, textbgcolor);
        tmp.print(content);
        drawRGBBitmap(x, y, tmp.getBuffer(), w, hh);
        // set cursor after last printed character
        setCursor(x + tmp.getCursorX(), y + (baseLine ? baseLine : -1 * yy));
        return w >= (int16_t)ww;
    }
};
 
}  // namespace ustd