def showqrcode(w, treeview, liststore):
path, col = treeview.get_cursor()
if not path: return
address = liststore.get_value(liststore.get_iter(path), 0)
qr = pyqrnative.QRCode(4, pyqrnative.QRErrorCorrectLevel.H)
qr.addData(address)
qr.make()
boxsize = 7
size = qr.getModuleCount() * boxsize
def area_expose_cb(area, event):
style = area.get_style()
k = qr.getModuleCount()
for r in range(k):
for c in range(k):
gc = style.black_gc if qr.isDark(r,
c) else style.white_gc
area.window.draw_rectangle(gc, True, c * boxsize,
r * boxsize, boxsize,
boxsize)
area = gtk.DrawingArea()
area.set_size_request(size, size)
area.connect("expose-event", area_expose_cb)
area.show()
dialog = gtk.Dialog(address,
parent=self.window,
flags=gtk.DIALOG_MODAL
| gtk.DIALOG_NO_SEPARATOR,
buttons=("ok", 1))
dialog.vbox.add(area)
dialog.run()
dialog.destroy()
def QRcode(data_string, file_name=None):
#import os
quality = {
1: pyqrnative.QRErrorCorrectLevel.L,
2: pyqrnative.QRErrorCorrectLevel.M,
3: pyqrnative.QRErrorCorrectLevel.Q,
4: pyqrnative.QRErrorCorrectLevel.H
}
size = 4
level = 1
file_name = file_name or "1111.png"
while 1:
#print size
try:
q = pyqrnative.QRCode(size, quality[level])
q.addData(data_string)
q.make()
break
except TypeError:
size += 1
x = q.makeImage()
#qr_file = os.path.join('C:/web2py/applications/ipay10/static', file_name)
qr_file = file_name
img_file = open(qr_file, 'wb')
x.save(img_file, 'PNG')
img_file.close()
def update_qr(self):
if self.addr and not self.qr:
for size in range(len(pyqrnative.QRUtil.PATTERN_POSITION_TABLE)): # [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]:
try:
self.qr = pyqrnative.QRCode(size, pyqrnative.QRErrorCorrectLevel.L)
self.qr.addData(self.addr)
self.qr.make()
break
except:
self.qr=None
continue
self.update()
def make_bitmap(addr):
# fixme: this is highly inefficient
droid.dialogCreateSpinnerProgress("please wait")
droid.dialogShow()
try:
import pyqrnative, bmp
qr = pyqrnative.QRCode(4, pyqrnative.QRErrorCorrectLevel.L)
qr.addData(addr)
qr.make()
k = qr.getModuleCount()
assert k == 33
bmp.save_qrcode(qr, "/sdcard/sl4a/qrcode.bmp")
finally:
droid.dialogDismiss()
def print_tx(tx):
for i in range(1, 20):
try:
qr = qrlib.QRCode(i, 0)
qr.addData(tx)
qr.make()
break
except qrlib.CodeOverflowException:
if i < 20:
continue
else:
raise Exception("Too much data for QR Code")
Q = qr.export_modules()
print_qr_array(Q)
def run(self, data, version=5, ecl=0):
self.qr = qrlib.QRCode(version, ecl)
self.qr.addData(data)
self.qr.make()
Q = np.array(self.qr.export_modules())
return Q
import ugfx
import math
import pyqrnative
# up to level 27 (125x125px) can be displayed
qr = pyqrnative.QRCode(2, pyqrnative.QRErrorCorrectLevel.Q)
qr.addData("https://sha2017.org/")
qr.make()
max_x = max_y = qr.getModuleCount()
matrix = qr.modules
disp_x, disp_y = (296, 128)
block_size = math.floor(disp_y / max_y)
offset_x = int(disp_x / 2) - int(block_size * max_y / 2)
offset_y = int(disp_y / 2) - int(block_size * max_x / 2)
ugfx.init()
ugfx.clear(ugfx.WHITE)
for y, row in enumerate(matrix):
for x, col in enumerate(row):
if qr.isDark(x, y):
ugfx.area(offset_x + x * block_size, offset_y + y * block_size,
block_size, block_size, ugfx.BLACK)
ugfx.flush()
