mirror of https://github.com/GOSTSec/gostcoin
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118 lines
3.5 KiB
118 lines
3.5 KiB
#include <stdio.h> |
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#include <QPainter> |
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#include <QTextStream> |
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#include <QTextDocument> |
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#include <QUrl> |
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#include <QFile> |
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#include <QPrintDialog> |
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#include <QPrinter> |
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#include <qrencode.h> |
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#include "key.h" |
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#include "base58.h" |
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#include "paperwallet.h" |
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static void printAsQR(QPainter &painter, QString &vchKey, int shift) |
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{ |
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QRcode *qr = QRcode_encodeString(vchKey.toStdString().c_str(), 1, QR_ECLEVEL_L, QR_MODE_8, 1); |
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if (qr) |
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{ |
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QPaintDevice *pd = painter.device(); |
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const double w = pd->width(); |
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const double h = pd->height(); |
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QColor bg("white"); |
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QColor fg("black"); |
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painter.setBrush(bg); |
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painter.fillRect(0, 0, w, h, bg); |
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painter.setPen(Qt::SolidLine); |
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painter.setPen(fg); |
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painter.setBrush(fg); |
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const int s=qr->width > 0 ? qr->width : 1; |
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const double aspect = w / h; |
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const double scale = ((aspect > 1.0) ? h : w) / s;// * 0.3; |
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for(int y = 0; y < s; y++) |
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{ |
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const int yy = y*s; |
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for(int x = 0; x < s; x++) |
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{ |
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const int xx = yy + x; |
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const unsigned char b = qr->data[xx]; |
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if(b & 0x01) |
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{ |
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const double rx1 = x*scale, ry1 = y*scale; |
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QRectF r(rx1 + shift, ry1, scale, scale); |
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painter.drawRects(&r, 1); |
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} |
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} |
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} |
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QRcode_free(qr); |
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} |
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} |
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static bool readHtmlTemplate(const QString &res_name, QString &htmlContent) |
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{ |
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QFile htmlFile(res_name); |
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if (!htmlFile.open(QIODevice::ReadOnly | QIODevice::Text)) |
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{ |
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printf("Cant open %s\n", res_name.toStdString().c_str ()); |
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return false; |
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} |
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QTextStream in(&htmlFile); |
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in.setCodec("UTF-8"); |
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htmlContent = in.readAll(); |
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return true; |
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} |
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void PrintPaperWallet (QWidget * parent) |
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{ |
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RandAddSeedPerfmon(); |
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CKey secret; |
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secret.MakeNewKey(true); |
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CPrivKey privkey = secret.GetPrivKey(); |
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CPubKey pubkey = secret.GetPubKey(); |
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CKeyID keyid = pubkey.GetID(); |
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std::string secret_str = CBitcoinSecret(secret).ToString(); |
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std::string address = CBitcoinAddress(keyid).ToString(); |
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QString qsecret = QString::fromStdString(secret_str); |
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QString qaddress = QString::fromStdString(address); |
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QPrinter printer(QPrinter::HighResolution); |
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printer.setPageMargins(0, 10, 0, 0, QPrinter::Millimeter); |
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QPrintDialog dlg(&printer, parent); |
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if(dlg.exec() == QDialog::Accepted) |
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{ |
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QImage img1(200, 200, QImage::Format_ARGB32); |
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QImage img2(200, 200, QImage::Format_ARGB32); |
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QPainter painter(&img1); |
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painter.setRenderHint(QPainter::Antialiasing, false); |
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painter.setRenderHint(QPainter::TextAntialiasing, false); |
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painter.setRenderHint(QPainter::SmoothPixmapTransform, false); |
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painter.setRenderHint(QPainter::HighQualityAntialiasing, false); |
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painter.setRenderHint(QPainter::NonCosmeticDefaultPen, false); |
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printAsQR(painter, qaddress, 0); |
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painter.end(); |
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painter.begin(&img2); |
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printAsQR(painter, qsecret, 0); |
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painter.end(); |
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QString html; |
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readHtmlTemplate(":/html/paperwallet", html); |
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html.replace("__ADDRESS__", qaddress); |
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html.replace("__PRIVATE__", qsecret); |
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QTextDocument document; |
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document.addResource(QTextDocument::ImageResource, QUrl(":qr1.png" ), img1); |
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document.addResource(QTextDocument::ImageResource, QUrl(":qr2.png" ), img2); |
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document.setHtml(html); |
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document.setPageSize(QSizeF(printer.pageRect(QPrinter::Point).size())); |
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document.print(&printer); |
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} |
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}
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