mirror of
https://github.com/LBRYFoundation/LBRY-Vault.git
synced 2025-08-23 17:47:31 +00:00
9bba65199e
The stretch to the right of the QR was included in the image previously. This resolves the FIXME.
164 lines
4.5 KiB
Python
164 lines
4.5 KiB
Python
import qrcode
|
|
|
|
from PyQt5.QtGui import QColor, QPen
|
|
import PyQt5.QtGui as QtGui
|
|
from PyQt5.QtCore import Qt
|
|
from PyQt5.QtWidgets import (
|
|
QApplication, QVBoxLayout, QTextEdit, QHBoxLayout, QPushButton, QWidget,
|
|
QFileDialog,
|
|
)
|
|
|
|
from electrum.i18n import _
|
|
|
|
from .util import WindowModalDialog, get_parent_main_window, WWLabel
|
|
|
|
|
|
class QRCodeWidget(QWidget):
|
|
|
|
def __init__(self, data = None, fixedSize=False):
|
|
QWidget.__init__(self)
|
|
self.data = None
|
|
self.qr = None
|
|
self.fixedSize=fixedSize
|
|
if fixedSize:
|
|
self.setFixedSize(fixedSize, fixedSize)
|
|
self.setData(data)
|
|
|
|
|
|
def setData(self, data):
|
|
if self.data != data:
|
|
self.data = data
|
|
if self.data:
|
|
self.qr = qrcode.QRCode(
|
|
error_correction=qrcode.constants.ERROR_CORRECT_L,
|
|
box_size=10,
|
|
border=0,
|
|
)
|
|
self.qr.add_data(self.data)
|
|
if not self.fixedSize:
|
|
k = len(self.qr.get_matrix())
|
|
self.setMinimumSize(k*5,k*5)
|
|
else:
|
|
self.qr = None
|
|
|
|
self.update()
|
|
|
|
|
|
def paintEvent(self, e):
|
|
if not self.data:
|
|
return
|
|
|
|
black = QColor(0, 0, 0, 255)
|
|
white = QColor(255, 255, 255, 255)
|
|
black_pen = QPen(black)
|
|
black_pen.setJoinStyle(Qt.MiterJoin)
|
|
|
|
if not self.qr:
|
|
qp = QtGui.QPainter()
|
|
qp.begin(self)
|
|
qp.setBrush(white)
|
|
qp.setPen(white)
|
|
r = qp.viewport()
|
|
qp.drawRect(0, 0, r.width(), r.height())
|
|
qp.end()
|
|
return
|
|
|
|
matrix = self.qr.get_matrix()
|
|
k = len(matrix)
|
|
qp = QtGui.QPainter()
|
|
qp.begin(self)
|
|
r = qp.viewport()
|
|
|
|
margin = 10
|
|
framesize = min(r.width(), r.height())
|
|
boxsize = int( (framesize - 2*margin)/k )
|
|
size = k*boxsize
|
|
left = (framesize - size)/2
|
|
top = (framesize - size)/2
|
|
# Draw white background with margin
|
|
qp.setBrush(white)
|
|
qp.setPen(white)
|
|
qp.drawRect(0, 0, framesize, framesize)
|
|
# Draw qr code
|
|
qp.setBrush(black)
|
|
qp.setPen(black_pen)
|
|
for r in range(k):
|
|
for c in range(k):
|
|
if matrix[r][c]:
|
|
qp.drawRect(int(left+c*boxsize), int(top+r*boxsize),
|
|
boxsize - 1, boxsize - 1)
|
|
qp.end()
|
|
|
|
|
|
|
|
class QRDialog(WindowModalDialog):
|
|
|
|
def __init__(
|
|
self,
|
|
data,
|
|
parent=None,
|
|
title="",
|
|
show_text=False,
|
|
*,
|
|
help_text=None,
|
|
show_copy_text_btn=False,
|
|
):
|
|
WindowModalDialog.__init__(self, parent, title)
|
|
|
|
vbox = QVBoxLayout()
|
|
|
|
qrw = QRCodeWidget(data)
|
|
qr_hbox = QHBoxLayout()
|
|
qr_hbox.addWidget(qrw)
|
|
qr_hbox.addStretch(1)
|
|
vbox.addLayout(qr_hbox)
|
|
|
|
help_text = data if show_text else help_text
|
|
if help_text:
|
|
text_label = WWLabel()
|
|
text_label.setText(help_text)
|
|
vbox.addWidget(text_label)
|
|
hbox = QHBoxLayout()
|
|
hbox.addStretch(1)
|
|
|
|
def print_qr():
|
|
main_window = get_parent_main_window(self)
|
|
if main_window:
|
|
filename = main_window.getSaveFileName(_("Select where to save file"), "qrcode.png")
|
|
else:
|
|
filename, __ = QFileDialog.getSaveFileName(self, _("Select where to save file"), "qrcode.png")
|
|
if not filename:
|
|
return
|
|
p = qrw.grab()
|
|
p.save(filename, 'png')
|
|
self.show_message(_("QR code saved to file") + " " + filename)
|
|
|
|
def copy_image_to_clipboard():
|
|
p = qrw.grab()
|
|
QApplication.clipboard().setPixmap(p)
|
|
self.show_message(_("QR code copied to clipboard"))
|
|
|
|
def copy_text_to_clipboard():
|
|
QApplication.clipboard().setText(data)
|
|
self.show_message(_("Text copied to clipboard"))
|
|
|
|
b = QPushButton(_("Copy Image"))
|
|
hbox.addWidget(b)
|
|
b.clicked.connect(copy_image_to_clipboard)
|
|
|
|
if show_copy_text_btn:
|
|
b = QPushButton(_("Copy Text"))
|
|
hbox.addWidget(b)
|
|
b.clicked.connect(copy_text_to_clipboard)
|
|
|
|
b = QPushButton(_("Save"))
|
|
hbox.addWidget(b)
|
|
b.clicked.connect(print_qr)
|
|
|
|
b = QPushButton(_("Close"))
|
|
hbox.addWidget(b)
|
|
b.clicked.connect(self.accept)
|
|
b.setDefault(True)
|
|
|
|
vbox.addLayout(hbox)
|
|
self.setLayout(vbox)
|