#include "qrcodedialog.h"
#include "ui_qrcodedialog.h"
+
+#include "bitcoinunits.h"
+#include "dialogwindowflags.h"
+#include "guiconstants.h"
#include "guiutil.h"
+#include "optionsmodel.h"
#include <QPixmap>
#include <QUrl>
-#include <QDebug>
#include <qrencode.h>
-#define EXPORT_IMAGE_SIZE 256
-
-QRCodeDialog::QRCodeDialog(const QString &title, const QString &addr, const QString &label, bool enableReq, QWidget *parent) :
- QDialog(parent),
+QRCodeDialog::QRCodeDialog(const QString &addr, const QString &label, bool enableReq, QWidget *parent) :
+ QDialog(parent, DIALOGWINDOWHINTS),
ui(new Ui::QRCodeDialog),
+ model(0),
address(addr)
{
ui->setupUi(this);
- setWindowTitle(title);
- setAttribute(Qt::WA_DeleteOnClose);
- ui->chkReq->setVisible(enableReq);
+ setWindowTitle(QString("%1").arg(address));
+
+ ui->chkReqPayment->setVisible(enableReq);
+ ui->lblAmount->setVisible(enableReq);
ui->lnReqAmount->setVisible(enableReq);
- ui->lblAm1->setVisible(enableReq);
- ui->lblAm2->setVisible(enableReq);
ui->lnLabel->setText(label);
+ ui->btnSaveAs->setEnabled(false);
+
genCode();
}
delete ui;
}
+void QRCodeDialog::setModel(OptionsModel *model)
+{
+ this->model = model;
+
+ if (model)
+ connect(model, SIGNAL(displayUnitChanged(int)), this, SLOT(updateDisplayUnit()));
+
+ // update the display unit, to not use the default ("BTC")
+ updateDisplayUnit();
+}
+
void QRCodeDialog::genCode()
{
QString uri = getURI();
- //qDebug() << "Encoding:" << uri.toUtf8().constData();
+ if (uri != "")
{
ui->lblQRCode->setText("");
}
}
QRcode_free(code);
+
ui->lblQRCode->setPixmap(QPixmap::fromImage(myImage).scaled(300, 300));
+
+ ui->outUri->setPlainText(uri);
}
}
QString QRCodeDialog::getURI()
{
- QString ret = QString("bitcoin:%1").arg(address);
-
+ QString ret = QString("novacoin:%1").arg(address);
int paramCount = 0;
- if(ui->chkReq->isChecked() && ui->lnReqAmount->text().isEmpty() == false) {
- bool ok= false;
- double amount = ui->lnReqAmount->text().toDouble(&ok);
- if(ok) {
- ret += QString("?amount=%1X8").arg(ui->lnReqAmount->text());
+
+ ui->outUri->clear();
+
+ if (ui->chkReqPayment->isChecked())
+ {
+ if (ui->lnReqAmount->validate())
+ {
+ // even if we allow a non BTC unit input in lnReqAmount, we generate the URI with BTC as unit (as defined in BIP21)
+ ret += QString("?amount=%1").arg(BitcoinUnits::format(BitcoinUnits::BTC, ui->lnReqAmount->value()));
paramCount++;
}
+ else
+ {
+ ui->btnSaveAs->setEnabled(false);
+ ui->lblQRCode->setText(tr("The entered amount is invalid, please check."));
+ return QString("");
+ }
}
- if(ui->lnLabel->text().isEmpty() == false) {
+ if (!ui->lnLabel->text().isEmpty())
+ {
QString lbl(QUrl::toPercentEncoding(ui->lnLabel->text()));
ret += QString("%1label=%2").arg(paramCount == 0 ? "?" : "&").arg(lbl);
paramCount++;
}
- if(ui->lnMessage->text().isEmpty() == false) {
+ if (!ui->lnMessage->text().isEmpty())
+ {
QString msg(QUrl::toPercentEncoding(ui->lnMessage->text()));
ret += QString("%1message=%2").arg(paramCount == 0 ? "?" : "&").arg(msg);
paramCount++;
}
+ // limit URI length to prevent a DoS against the QR-Code dialog
+ if (ret.length() > MAX_URI_LENGTH)
+ {
+ ui->btnSaveAs->setEnabled(false);
+ ui->lblQRCode->setText(tr("Resulting URI too long, try to reduce the text for label / message."));
+ return QString("");
+ }
+
+ ui->btnSaveAs->setEnabled(true);
return ret;
}
-void QRCodeDialog::on_lnReqAmount_textChanged(const QString &)
+void QRCodeDialog::on_lnReqAmount_textChanged()
{
genCode();
}
-void QRCodeDialog::on_lnLabel_textChanged(const QString &)
+void QRCodeDialog::on_lnLabel_textChanged()
{
genCode();
}
-void QRCodeDialog::on_lnMessage_textChanged(const QString &)
+void QRCodeDialog::on_lnMessage_textChanged()
{
genCode();
}
void QRCodeDialog::on_btnSaveAs_clicked()
{
- QString fn = GUIUtil::getSaveFileName(this, tr("Save Image..."), QString(), tr("PNG Images (*.png)"));
- if(!fn.isEmpty()) {
+ QString fn = GUIUtil::getSaveFileName(this, tr("Save QR Code"), QString(), tr("PNG Images (*.png)"));
+ if (!fn.isEmpty())
myImage.scaled(EXPORT_IMAGE_SIZE, EXPORT_IMAGE_SIZE).save(fn);
- }
}
-void QRCodeDialog::on_chkReq_toggled(bool)
+void QRCodeDialog::on_chkReqPayment_toggled(bool fChecked)
{
+ if (!fChecked)
+ // if chkReqPayment is not active, don't display lnReqAmount as invalid
+ ui->lnReqAmount->setValid(true);
+
genCode();
}
+
+void QRCodeDialog::updateDisplayUnit()
+{
+ if (model)
+ {
+ // Update lnReqAmount with the current unit
+ ui->lnReqAmount->setDisplayUnit(model->getDisplayUnit());
+ }
+}