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Display an error, rather than crashing, if encoding a QR Code failed.

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(master workaround in b1a99c3a1f + 7261945eb5)
This commit is contained in:
Luke Dashjr
2012-04-14 15:27:12 -04:00
parent 760d9480ed
commit 278074eb23
2 changed files with 22 additions and 9 deletions
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3
src/qt/forms/qrcodedialog.ui
View File

@@ -34,6 +34,9 @@
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
<property name="wordWrap">
<bool>true</bool>
</property>
</widget>
</item>
<item>

28
src/qt/qrcodedialog.cpp
View File

@@ -39,17 +39,27 @@ void QRCodeDialog::genCode()
QString uri = getURI();
//qDebug() << "Encoding:" << uri.toUtf8().constData();
QRcode *code = QRcode_encodeString(uri.toUtf8().constData(), 0, QR_ECLEVEL_L, QR_MODE_8, 1);
myImage = QImage(code->width + 8, code->width + 8, QImage::Format_RGB32);
myImage.fill(0xffffff);
unsigned char *p = code->data;
for(int y = 0; y < code->width; y++) {
for(int x = 0; x < code->width; x++) {
myImage.setPixel(x + 4, y + 4, ((*p & 1) ? 0x0 : 0xffffff));
p++;
if (code)
{
ui->lblQRCode->setText("");
QRcode *code = QRcode_encodeString(uri.toUtf8().constData(), 0, QR_ECLEVEL_L, QR_MODE_8, 1);
myImage = QImage(code->width + 8, code->width + 8, QImage::Format_RGB32);
myImage.fill(0xffffff);
unsigned char *p = code->data;
for (int y = 0; y < code->width; y++)
{
for (int x = 0; x < code->width; x++)
{
myImage.setPixel(x + 4, y + 4, ((*p & 1) ? 0x0 : 0xffffff));
p++;
}
}
QRcode_free(code);
ui->lblQRCode->setPixmap(QPixmap::fromImage(myImage).scaled(300, 300));
}
QRcode_free(code);
ui->lblQRCode->setPixmap(QPixmap::fromImage(myImage).scaled(300, 300));
else
ui->lblQRCode->setText(tr("Error encoding URI into QR Code; try to reduce the text for label / message."));
}
QString QRCodeDialog::getURI()