1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
#include "receiverequestdialog.h"
#include "ui_receiverequestdialog.h"
#include "bitcoinunits.h"
#include "guiconstants.h"
#include "guiutil.h"
#include "optionsmodel.h"
#include "walletmodel.h"
#include <QPixmap>
#include <QClipboard>
#if QT_VERSION < 0x050000
#include <QUrl>
#endif
#include "bitcoin-config.h" /* for USE_QRCODE */
#ifdef USE_QRCODE
#include <qrencode.h>
#endif
QRImageWidget::QRImageWidget(QWidget *parent):
QLabel(parent)
{
setContextMenuPolicy(Qt::ActionsContextMenu);
QAction *saveImageAction = new QAction(tr("&Save Image..."), this);
connect(saveImageAction, SIGNAL(triggered()), this, SLOT(saveImage()));
addAction(saveImageAction);
QAction *copyImageAction = new QAction(tr("&Copy Image"), this);
connect(copyImageAction, SIGNAL(triggered()), this, SLOT(copyImage()));
addAction(copyImageAction);
}
QImage QRImageWidget::exportImage()
{
return pixmap()->toImage().scaled(EXPORT_IMAGE_SIZE, EXPORT_IMAGE_SIZE);
}
void QRImageWidget::mousePressEvent(QMouseEvent *event)
{
if(event->button() == Qt::LeftButton)
{
QMimeData *mimeData = new QMimeData;
mimeData->setImageData(exportImage());
QDrag *drag = new QDrag(this);
drag->setMimeData(mimeData);
drag->exec();
}
}
void QRImageWidget::saveImage()
{
QString fn = GUIUtil::getSaveFileName(this, tr("Save QR Code"), QString(), tr("PNG Images (*.png)"));
if (!fn.isEmpty())
{
exportImage().save(fn);
}
}
void QRImageWidget::copyImage()
{
QApplication::clipboard()->setImage(exportImage());
}
ReceiveRequestDialog::ReceiveRequestDialog(const SendCoinsRecipient &info, QWidget *parent) :
QDialog(parent),
ui(new Ui::ReceiveRequestDialog),
model(0),
info(info)
{
ui->setupUi(this);
QString target = info.label;
if(target.isEmpty())
target = info.address;
setWindowTitle(tr("Request payment to %1").arg(target));
ui->lnAddress->setText(info.address);
if(info.amount)
ui->lnReqAmount->setValue(info.amount);
ui->lnReqAmount->setReadOnly(true);
ui->lnLabel->setText(info.label);
ui->lnMessage->setText(info.message);
#ifndef USE_QRCODE
ui->btnSaveAs->setVisible(false);
ui->lblQRCode->setVisible(false);
#endif
connect(ui->btnSaveAs, SIGNAL(clicked()), ui->lblQRCode, SLOT(saveImage()));
genCode();
}
ReceiveRequestDialog::~ReceiveRequestDialog()
{
delete ui;
}
void ReceiveRequestDialog::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 ReceiveRequestDialog::genCode()
{
QString uri = getURI();
ui->btnSaveAs->setEnabled(false);
ui->outUri->setPlainText(uri);
#ifdef USE_QRCODE
if (uri != "")
{
ui->lblQRCode->setText("");
QRcode *code = QRcode_encodeString(uri.toUtf8().constData(), 0, QR_ECLEVEL_L, QR_MODE_8, 1);
if (!code)
{
ui->lblQRCode->setText(tr("Error encoding URI into QR Code."));
return;
}
QImage 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));
ui->btnSaveAs->setEnabled(true);
}
#endif
}
QString ReceiveRequestDialog::getURI()
{
QString ret = QString("bitcoin:%1").arg(info.address);
int paramCount = 0;
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++;
}
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())
{
QString msg(QUrl::toPercentEncoding(ui->lnMessage->text()));
ret += QString("%1message=%2").arg(paramCount == 0 ? "?" : "&").arg(msg);
paramCount++;
}
// limit URI length
if (ret.length() > MAX_URI_LENGTH)
{
ui->lblQRCode->setText(tr("Resulting URI too long, try to reduce the text for label / message."));
return QString("");
}
return ret;
}
void ReceiveRequestDialog::on_lnReqAmount_textChanged()
{
genCode();
}
void ReceiveRequestDialog::on_lnLabel_textChanged()
{
genCode();
}
void ReceiveRequestDialog::on_lnMessage_textChanged()
{
genCode();
}
void ReceiveRequestDialog::updateDisplayUnit()
{
if (model)
{
// Update lnReqAmount with the current unit
ui->lnReqAmount->setDisplayUnit(model->getDisplayUnit());
}
}
|
