Function handleDelete

src/mykeyboard.cpp:140–159

Handles character deletion from the text string and screen

/// Handles character deletion from the text string and screen
bool handleDelete(String &current_text, int &cursor_x, int &cursor_y) {
    if (current_text.length() == 0) return false;

    // remove from string
    current_text.remove(current_text.length() - 1);
    // delete from screen:
    int fontSize = FM;
    if (current_text.length() > max_FP_size) {
        tft->setTextSize(FP);
        fontSize = FP;
    } else tft->setTextSize(FM);
    tft->setCursor((cursor_x - fontSize * LW), cursor_y);
    tft->setTextColor(FGCOLOR, BGCOLOR);
    tft->print(" ");
    tft->setTextColor(getComplementaryColor(BGCOLOR), 0x5AAB);
    tft->setCursor(cursor_x - fontSize * LW, cursor_y);
    cursor_x = tft->getCursorX();
    cursor_y = tft->getCursorY();
    return true;
}

/// Handles adding a character to the text string
bool handleCharacterAdd(