mayhem-firmware/firmware/application/ui/ui_qrcode.cpp

/*
 * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
 * Copyright (C) 2017 Furrtek
 *
 * This file is part of PortaPack.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street,
 * Boston, MA 02110-1301, USA.
 */

#include "ui_qrcode.hpp"
#include "qrcodegen.hpp"
#include "portapack.hpp"
#include "portapack_persistent_memory.hpp"

#include <cstring>
#include <stdio.h>

using namespace portapack;

#include "string_format.hpp"
#include "complex.hpp"

namespace ui {

QRCodeImage::QRCodeImage(
    Rect parent_rect)
    : Widget{parent_rect} {
}

QRCodeImage::~QRCodeImage() {
}

QRCodeImage::QRCodeImage(const QRCodeImage& Image)
    : Widget{} {
    (void)Image;
}

QRCodeImage& QRCodeImage::operator=(const QRCodeImage& Image) {
    (void)Image;
    return *this;
}

void QRCodeImage::paint(Painter& painter) {
    (void)painter;

    // The structure to manage the QR code
    QRCode qrcode;

    // Either small or large QR code can be shown..

    if (portapack::persistent_memory::show_bigger_qr_code()) {  // show large QR code
        int qr_version = 2;

        // Allocate a chunk of memory to store the QR code
        uint8_t qrcodeBytes[qrcode_getBufferSize(qr_version)];

        qrcode_initText(&qrcode, qrcodeBytes, qr_version, ECC_HIGH, qr_text_);

        display.fill_rectangle(Rect(10, 30, 220, 220), Color::white());

        for (uint8_t y = 0; y < qrcode.size; y++) {
            for (uint8_t x = 0; x < qrcode.size; x++) {
                if (qrcode_getModule(&qrcode, x, y)) {
                    display.fill_rectangle(Rect(20 + (x * 8), 40 + (y * 8), 8, 8), Color::black());
                }
            }
        }

    }

    else {  // show small QR code
        int qr_version = 10;

        // Allocate a chunk of memory to store the QR code
        uint8_t qrcodeBytes[qrcode_getBufferSize(qr_version)];

        qrcode_initText(&qrcode, qrcodeBytes, qr_version, ECC_HIGH, qr_text_);

        display.fill_rectangle(Rect(92, 97, 63, 63), Color::white());

        for (uint8_t y = 0; y < qrcode.size; y++) {
            for (uint8_t x = 0; x < qrcode.size; x++) {
                if (qrcode_getModule(&qrcode, x, y)) {
                    display.draw_pixel(Point(95 + x, 100 + y), Color::black());
                }
            }
        }
    }
}

void QRCodeView::focus() {
    button_close.focus();
}

QRCodeView::~QRCodeView() {
    if (on_close_)
        on_close_();
}

QRCodeView::QRCodeView(
    NavigationView& nav,
    const char* qr_text,
    const std::function<void(void)> on_close)
    : nav_(nav),
      on_close_(on_close) {
    add_children({&qr_code,
                  &button_close});
    // text_qr.set(qr_text);
    qr_code.set_text(qr_text);

    button_close.on_select = [&nav](Button&) {
        nav.pop();
    };
}

} /* namespace ui */