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flatcam/flatcamTools/ToolQRCode.py

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# ##########################################################
# FlatCAM: 2D Post-processing for Manufacturing #
# File Author: Marius Adrian Stanciu (c) #
# Date: 3/10/2019 #
# MIT Licence #
# ##########################################################
from PyQt5 import QtWidgets, QtCore
from FlatCAMTool import FlatCAMTool
from flatcamGUI.GUIElements import RadioSet, FCTextArea, FCSpinner
from camlib import *
from shapely.geometry import Point
from shapely.geometry.base import *
import math
import io
from datetime import datetime
import logging
import qrcode
import qrcode.image.svg
from lxml import etree as ET
import gettext
import FlatCAMTranslation as fcTranslate
import builtins
fcTranslate.apply_language('strings')
if '_' not in builtins.__dict__:
_ = gettext.gettext
log = logging.getLogger('base')
class QRCode(FlatCAMTool):
toolName = _("QRCode Tool")
def __init__(self, app):
FlatCAMTool.__init__(self, app)
self.app = app
self.canvas = self.app.plotcanvas
self.decimals = 4
self.units = ''
# ## Title
title_label = QtWidgets.QLabel("%s" % self.toolName)
title_label.setStyleSheet("""
QLabel
{
font-size: 16px;
font-weight: bold;
}
""")
self.layout.addWidget(title_label)
self.layout.addWidget(QtWidgets.QLabel(''))
# ## Grid Layout
i_grid_lay = QtWidgets.QGridLayout()
self.layout.addLayout(i_grid_lay)
i_grid_lay.setColumnStretch(0, 0)
i_grid_lay.setColumnStretch(1, 1)
self.grb_object_combo = QtWidgets.QComboBox()
self.grb_object_combo.setModel(self.app.collection)
self.grb_object_combo.setRootModelIndex(self.app.collection.index(0, 0, QtCore.QModelIndex()))
self.grb_object_combo.setCurrentIndex(1)
self.grbobj_label = QtWidgets.QLabel("<b>%s:</b>" % _("GERBER"))
self.grbobj_label.setToolTip(
_("Gerber Object to which the QRCode will be added.")
)
i_grid_lay.addWidget(self.grbobj_label, 0, 0)
i_grid_lay.addWidget(self.grb_object_combo, 0, 1, 1, 2)
i_grid_lay.addWidget(QtWidgets.QLabel(''), 1, 0)
# ## Grid Layout
grid_lay = QtWidgets.QGridLayout()
self.layout.addLayout(grid_lay)
grid_lay.setColumnStretch(0, 0)
grid_lay.setColumnStretch(1, 1)
self.qrcode_label = QtWidgets.QLabel('<b>%s</b>' % _('QRCode Parameters'))
self.qrcode_label.setToolTip(
_("Contain the expected calibration points and the\n"
"ones measured.")
)
grid_lay.addWidget(self.qrcode_label, 0, 0, 1, 2)
# VERSION #
self.version_label = QtWidgets.QLabel('%s:' % _("Version"))
self.version_label.setToolTip(
_("QRCode version can have values from 1 (21x21 boxes)\n"
"to 40 (177x177 boxes).")
)
self.version_entry = FCSpinner()
self.version_entry.set_range(1, 40)
self.version_entry.setWrapping(True)
grid_lay.addWidget(self.version_label, 1, 0)
grid_lay.addWidget(self.version_entry, 1, 1)
# ERROR CORRECTION #
self.error_label = QtWidgets.QLabel('%s:' % _("Error correction"))
self.error_label.setToolTip(
_("Parameter that controls the error correction used for the QR Code.\n"
"L = maximum 7% errors can be corrected\n"
"M = maximum 15% errors can be corrected\n"
"Q = maximum 25% errors can be corrected\n"
"H = maximum 30% errors can be corrected.")
)
self.error_radio = RadioSet([{'label': 'L', 'value': 'L'},
{'label': 'M', 'value': 'M'},
{'label': 'Q', 'value': 'Q'},
{'label': 'H', 'value': 'H'}])
self.error_radio.setToolTip(
_("Parameter that controls the error correction used for the QR Code.\n"
"L = maximum 7% errors can be corrected\n"
"M = maximum 15% errors can be corrected\n"
"Q = maximum 25% errors can be corrected\n"
"H = maximum 30% errors can be corrected.")
)
grid_lay.addWidget(self.error_label, 2, 0)
grid_lay.addWidget(self.error_radio, 2, 1)
# BOX SIZE #
self.bsize_label = QtWidgets.QLabel('%s:' % _("Box Size"))
self.bsize_label.setToolTip(
_("Box size control the overall size of the QRcode\n"
"by adjusting the size of each box in the code.")
)
self.bsize_entry = FCSpinner()
self.bsize_entry.set_range(1, 9999)
self.bsize_entry.setWrapping(True)
grid_lay.addWidget(self.bsize_label, 3, 0)
grid_lay.addWidget(self.bsize_entry, 3, 1)
# BORDER SIZE #
self.border_size_label = QtWidgets.QLabel('%s:' % _("Border Size"))
self.border_size_label.setToolTip(
_("Size of the QRCode border. How many boxes thick is the border.\n"
"Default value is 4.")
)
self.border_size_entry = FCSpinner()
self.border_size_entry.set_range(1, 9999)
self.border_size_entry.setWrapping(True)
self.border_size_entry.set_value(4)
grid_lay.addWidget(self.border_size_label, 4, 0)
grid_lay.addWidget(self.border_size_entry, 4, 1)
# Text box
self.text_label = QtWidgets.QLabel('%s:' % _("QRCode Data"))
self.text_label.setToolTip(
_("QRCode Data. Alphanumeric text to be encoded in the QRCode.")
)
self.text_data = FCTextArea()
grid_lay.addWidget(self.text_label, 5, 0)
grid_lay.addWidget(self.text_data, 6, 0, 1, 2)
# ## Create QRCode
self.qrcode_button = QtWidgets.QPushButton(_("Create QRCode"))
self.qrcode_button.setToolTip(
_("Create the QRCode object.")
)
grid_lay.addWidget(self.qrcode_button, 7, 0, 1, 2)
grid_lay.addWidget(QtWidgets.QLabel(''), 8, 0)
self.layout.addStretch()
def run(self, toggle=True):
self.app.report_usage("QRCode()")
if toggle:
# if the splitter is hidden, display it, else hide it but only if the current widget is the same
if self.app.ui.splitter.sizes()[0] == 0:
self.app.ui.splitter.setSizes([1, 1])
else:
try:
if self.app.ui.tool_scroll_area.widget().objectName() == self.toolName:
# if tab is populated with the tool but it does not have the focus, focus on it
if not self.app.ui.notebook.currentWidget() is self.app.ui.tool_tab:
# focus on Tool Tab
self.app.ui.notebook.setCurrentWidget(self.app.ui.tool_tab)
else:
self.app.ui.splitter.setSizes([0, 1])
except AttributeError:
pass
else:
if self.app.ui.splitter.sizes()[0] == 0:
self.app.ui.splitter.setSizes([1, 1])
FlatCAMTool.run(self)
self.set_tool_ui()
self.app.ui.notebook.setTabText(2, _("QRCode Tool"))
def install(self, icon=None, separator=None, **kwargs):
FlatCAMTool.install(self, icon, separator, shortcut='ALT+Q', **kwargs)
def set_tool_ui(self):
self.units = self.app.ui.general_defaults_form.general_app_group.units_radio.get_value()
self.version_entry.set_value(1)
self.error_radio.set_value('M')
self.bsize_entry.set_value(3)
self.border_size_entry.set_value(4)
# Signals #
self.qrcode_button.clicked.connect(self.execute)
def execute(self):
text_data = self.text_data.get_value()
if text_data == '':
self.app.inform.emit('[ERROR_NOTCL] %s' % _("Cancelled. There is no QRCode Data in the text box."))
return 'fail'
svg_file = io.BytesIO()
error_code = {
'L': qrcode.constants.ERROR_CORRECT_L,
'M': qrcode.constants.ERROR_CORRECT_M,
'Q': qrcode.constants.ERROR_CORRECT_Q,
'H': qrcode.constants.ERROR_CORRECT_H
}[self.error_radio.get_value()]
qr = qrcode.QRCode(
version=self.version_entry.get_value(),
error_correction=error_code,
box_size=self.bsize_entry.get_value(),
border=self.border_size_entry.get_value(),
image_factory=qrcode.image.svg.SvgFragmentImage
)
qr.add_data(text_data)
qr.make()
img = qr.make_image()
img.save(svg_file)
svg_text = StringIO(svg_file.getvalue().decode('UTF-8'))
def obj_init(geo_obj, app_obj):
geo_obj.import_svg(svg_text, units=self.units)
geo_obj.solid_geometry = unary_union(geo_obj.solid_geometry).buffer(0.0000001)
geo_obj.solid_geometry = geo_obj.solid_geometry.buffer(-0.0000001)
with self.app.proc_container.new(_("Generating QRCode...")):
# Object creation
self.app.new_object('gerber', 'QRCode', obj_init, plot=True)
def make(self):
pass
def utility_geo(self):
pass
def on_mouse_move(self, event):
pass
def on_mouse_release(self, event):
pass
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