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gostcoin
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paperwallet added

pull/29/head
orignal 7 years ago
parent
616a9aa1ba
commit
cd07e57738
5 changed files with 213 additions and 2 deletions
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  1. 6
      gostcoin-qt.pro
  2. 118
      src/qt/paperwallet.cpp
  3. 9
      src/qt/paperwallet.h
  4. 5
      src/qt/paperwallet.qrc
  5. 77
      src/qt/res/html/paperwallet.html

6
gostcoin-qt.pro
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@ -307,9 +307,11 @@ FORMS += src/qt/forms/sendcoinsdialog.ui \ @@ -307,9 +307,11 @@ FORMS += src/qt/forms/sendcoinsdialog.ui \
src/qt/forms/showi2paddresses.ui
contains(USE_QRCODE, 1) {
HEADERS += src/qt/qrcodedialog.h
SOURCES += src/qt/qrcodedialog.cpp
HEADERS += src/qt/qrcodedialog.h src/qt/paperwallet.h
SOURCES += src/qt/qrcodedialog.cpp src/qt/paperwallet.cpp
FORMS += src/qt/forms/qrcodedialog.ui
RESOURCES += src/qt/paperwallet.qrc
QT += printsupport
}
contains(BITCOIN_QT_TEST, 1) {

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

9
src/qt/paperwallet.h
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@ -0,0 +1,9 @@ @@ -0,0 +1,9 @@
#ifndef PAPERWALLET_H__
#define PAPERWALLET_H__
#include <QWidget>
void PrintPaperWallet (QWidget * parent);
#endif

5
src/qt/paperwallet.qrc
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@ -0,0 +1,5 @@ @@ -0,0 +1,5 @@
<!DOCTYPE RCC><RCC version="1.0">
<qresource prefix="/html">
<file alias="paperwallet">res/html/paperwallet.html</file>
</qresource>
</RCC>

77
src/qt/res/html/paperwallet.html
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@ -0,0 +1,77 @@ @@ -0,0 +1,77 @@
<!DOCTYPE html>
<html>
<head lang="en">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title></title>
</head>
<body style="font-family: sans-serif; font-size: 9px; height: 842px; width: 595px; margin-left: auto; margin-right: auto;">
<table style="width: 100%; margin-bottom: 10px" border="1px" cellpadding="10px">
<tr style="vertical-align: top">
<td align="left" width="50%">
<img src=":qr1.png"/>
<h4>
Your deposit address:
</h4>
<div style="margin-bottom: 10px">
__ADDRESS__
</div>
<div>
<p>Use this address to deposit your Gostcoins. </p>
<p>The balance and transactoin history you can find in public blockchain: <a href=«http://explorer.gostco.in»>http://explorer.gostco.in</a></p> <br /><br /><br /><br />
</div>
</td>
<td align="left" width="50%">
<img src=":qr2.png"/>
<!--width="150" height="150"/>-->
<h4>
Your key to send Gostcoins:
</h4>
<div style="margin-bottom: 10px">
__PRIVATE__
</div>
<div>
<p>To send your Gostcoins you need to import this key into you wallet, using importprivkey command.</p>
</div>
</td>
</tr>
<tr style="margin-bottom: 20px">
<td colspan="2" >
<h3>
Attention!
</h3>
<div>
<ul>
<li> You should use a paper wallet only once. When you import your key it stays forever</li>
<li>If you lose your key, you will lose your Gostcoins</li>
<li>All transactions on the Gostcoin network irrevocable, they can not be canceled. Be careful when entering addresses to avoid typos. If possible, use the QR-code reading function.</li>
</ul>
</div>
</td>
</tr>
<tr>
<td colspan="2">
<table style="margin-bottom: 10px; margin-top: 10px">
<tr>
<td width="200">
<div style="display: inline-block;">
<img src=":/icons/che_cash_print" width="160" height="107">
</div>
</td>
<td>
<div style="display: inline-block; vertical-align: top; margin-left: 20px">
<h2>GOST Coin (GST)</h2>
<div>
<h3>
Paper wallet
</h3>
</div>
</div>
</td>
</tr>
</table>
</td>
</tr>
</table>
</body>
</html>
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