forked from tito/android-zbar-qrcode
/
main.py
644 lines (490 loc) · 18.9 KB
/
main.py
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# -*- coding: utf-8 -*-
'''
Qrcode example application
==========================
Author: Mathieu Virbel <mat@meltingrocks.com>
Featuring:
- Android camera initialization
- Show the android camera into a Android surface that act as an overlay
- New AndroidWidgetHolder that control any android view as an overlay
- New ZbarQrcodeDetector that use AndroidCamera / PreviewFrame + zbar to
detect Qrcode.
'''
import kivy
kivy.require('1.9.1')
from kivy.network.urlrequest import UrlRequest
from kivy.properties import StringProperty, Clock, NumericProperty,\
DictProperty, BooleanProperty
from kivy.uix.button import Button
from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.label import Label
from kivy.uix.gridlayout import GridLayout
from kivy import metrics
from kivy.uix.textinput import TextInput
from kivy.uix.widget import Widget
from json import dumps
import base64
# my import
from kivy.clock import Clock
from kivy.adapters.listadapter import ListAdapter
from kivy.uix.listview import ListItemButton, ListView
import time
import re
from random import randint
__version__ = '1.0'
from collections import namedtuple
from kivy.lang import Builder
from kivy.app import App
from kivy.properties import ObjectProperty, ListProperty, BooleanProperty, \
NumericProperty
from kivy.uix.widget import Widget
from kivy.uix.anchorlayout import AnchorLayout
from kivy.graphics import Color, Line
from jnius import autoclass, PythonJavaClass, java_method, cast
from android.runnable import run_on_ui_thread
# preload java classes
System = autoclass('java.lang.System')
System.loadLibrary('iconv')
PythonActivity = autoclass('org.renpy.android.PythonActivity')
Camera = autoclass('android.hardware.Camera')
ImageScanner = autoclass('net.sourceforge.zbar.ImageScanner')
Config = autoclass('net.sourceforge.zbar.Config')
SurfaceView = autoclass('android.view.SurfaceView')
LayoutParams = autoclass('android.view.ViewGroup$LayoutParams')
Image = autoclass('net.sourceforge.zbar.Image')
ImageFormat = autoclass('android.graphics.ImageFormat')
LinearLayout = autoclass('android.widget.LinearLayout')
Symbol = autoclass('net.sourceforge.zbar.Symbol')
# my code insert
#
#
#
#
#
class PreviewCallback(PythonJavaClass):
'''Interface used to get back the preview frame of the Android Camera
'''
__javainterfaces__ = ('android.hardware.Camera$PreviewCallback', )
def __init__(self, callback):
super(PreviewCallback, self).__init__()
self.callback = callback
@java_method('([BLandroid/hardware/Camera;)V')
def onPreviewFrame(self, data, camera):
self.callback(camera, data)
class SurfaceHolderCallback(PythonJavaClass):
'''Interface used to know exactly when the Surface used for the Android
Camera will be created and changed.
'''
__javainterfaces__ = ('android.view.SurfaceHolder$Callback', )
def __init__(self, callback):
super(SurfaceHolderCallback, self).__init__()
self.callback = callback
@java_method('(Landroid/view/SurfaceHolder;III)V')
def surfaceChanged(self, surface, fmt, width, height):
self.callback(fmt, width, height)
@java_method('(Landroid/view/SurfaceHolder;)V')
def surfaceCreated(self, surface):
pass
@java_method('(Landroid/view/SurfaceHolder;)V')
def surfaceDestroyed(self, surface):
pass
class AndroidWidgetHolder(Widget):
'''Act as a placeholder for an Android widget.
It will automatically add / remove the android view depending if the widget
view is set or not. The android view will act as an overlay, so any graphics
instruction in this area will be covered by the overlay.
'''
view = ObjectProperty(allownone=True)
'''Must be an Android View
'''
def __init__(self, **kwargs):
self._old_view = None
from kivy.core.window import Window
self._window = Window
kwargs['size_hint'] = (None, None)
super(AndroidWidgetHolder, self).__init__(**kwargs)
def on_view(self, instance, view):
if self._old_view is not None:
layout = cast(LinearLayout, self._old_view.getParent())
layout.removeView(self._old_view)
self._old_view = None
if view is None:
return
activity = PythonActivity.mActivity
activity.addContentView(view, LayoutParams(*self.size))
view.setZOrderOnTop(True)
view.setX(self.x)
view.setY(self._window.height - self.y - self.height)
self._old_view = view
def on_size(self, instance, size):
if self.view:
params = self.view.getLayoutParams()
params.width = self.width
params.height = self.height
self.view.setLayoutParams(params)
self.view.setY(self._window.height - self.y - self.height)
def on_x(self, instance, x):
if self.view:
self.view.setX(x)
def on_y(self, instance, y):
if self.view:
self.view.setY(self._window.height - self.y - self.height)
class AndroidCamera(Widget):
'''Widget for controling an Android Camera.
'''
index = NumericProperty(0)
__events__ = ('on_preview_frame', )
def __init__(self, **kwargs):
self._holder = None
self._android_camera = None
super(AndroidCamera, self).__init__(**kwargs)
self._holder = AndroidWidgetHolder(size=self.size, pos=self.pos)
self.add_widget(self._holder)
@run_on_ui_thread
def stop(self):
if self._android_camera is None:
return
self._android_camera.setPreviewCallback(None)
self._android_camera.release()
self._android_camera = None
self._holder.view = None
@run_on_ui_thread
def start(self):
if self._android_camera is not None:
return
self._android_camera = Camera.open(self.index)
# create a fake surfaceview to get the previewCallback working.
self._android_surface = SurfaceView(PythonActivity.mActivity)
surface_holder = self._android_surface.getHolder()
# create our own surface holder to correctly call the next method when
# the surface is ready
self._android_surface_cb = SurfaceHolderCallback(self._on_surface_changed)
surface_holder.addCallback(self._android_surface_cb)
# attach the android surfaceview to our android widget holder
self._holder.view = self._android_surface
def _on_surface_changed(self, fmt, width, height):
# internal, called when the android SurfaceView is ready
# FIXME if the size is not handled by the camera, it will failed.
params = self._android_camera.getParameters()
params.setPreviewSize(width, height)
self._android_camera.setParameters(params)
# now that we know the camera size, we'll create 2 buffers for faster
# result (using Callback buffer approach, as described in Camera android
# documentation)
# it also reduce the GC collection
bpp = ImageFormat.getBitsPerPixel(params.getPreviewFormat()) / 8.
buf = '\x00' * int(width * height * bpp)
self._android_camera.addCallbackBuffer(buf)
self._android_camera.addCallbackBuffer(buf)
# create a PreviewCallback to get back the onPreviewFrame into python
self._previewCallback = PreviewCallback(self._on_preview_frame)
# connect everything and start the preview
self._android_camera.setPreviewCallbackWithBuffer(self._previewCallback);
self._android_camera.setPreviewDisplay(self._android_surface.getHolder())
self._android_camera.startPreview();
def _on_preview_frame(self, camera, data):
# internal, called by the PreviewCallback when onPreviewFrame is
# received
self.dispatch('on_preview_frame', camera, data)
# reintroduce the data buffer into the queue
self._android_camera.addCallbackBuffer(data)
def on_preview_frame(self, camera, data):
pass
def on_size(self, instance, size):
if self._holder:
self._holder.size = size
def on_pos(self, instance, pos):
if self._holder:
self._holder.pos = pos
class ZbarQrcodeDetector(AnchorLayout):
# my code
#
#
#
# Auth properties
login = StringProperty(u'')
password = StringProperty(u'')
host = StringProperty('')
login = 'dzyk'
password = 'sebastopol'
host = 'http://10.42.0.1:8000/remotecontrol/'
# Represents the last command which was accepted
last_accepted_command = StringProperty('')
# Bound to the "Info" label
info_text = StringProperty('')
# Command execution confirmation flag
need_confirm = BooleanProperty(True)
# my functions
#
#
#
# data for friends list
# --------------------
def _get_auth(self):
# Encodes basic authorization data
cred = ('%s:%s' % (self.login, self.password))
return 'Basic %s' %\
base64.b64encode(cred.encode('ascii')).decode('ascii')
def _send_request_dzyk(self, url, success=None, error=None, params=None):
headers = {
'User-Agent': 'Mozilla/5.0',
'Content-type': 'application/json',
'Authorization': self._get_auth()
}
UrlRequest(
url= self.host[:-14]+'com/' + url, timeout=30, req_headers=headers,
req_body=None if params is None else dumps(params),
on_success=success, on_error=error, on_failure=error)
def _get_commands_error_dzyk(self, request, error):
print error
def _get_commands_result_dzyk_balance_allsum(self, request, response):
# Parses API-call response
try:
for i in response:
#self.labell.text =i['sum']
print i
except Exception as e:
self._get_commands_error_dzyk(request, str(e))
labell = Label(id = 'text_label',text='labell', halign='center',
size_hint_y=None, width=metrics.dp(35))
friendlabel = Label(id = 'friend_label',text=' click >>', halign='center',
size_hint_y=None, width=metrics.dp(35))
scorelabel = TextInput(id = 'score_label',text='0.99', halign='center',
size_hint_y=None, width=metrics.dp(35), multiline=False)
textinput_addfriend = TextInput(id = 'txtaddfriend',text='', multiline=False)
def _get_commands_error_dzyk(self, request, error):
print error
def _get_commands_result_dzyk_balance_allsum(self, request, response):
# Parses API-call response
try:
for i in response:
self.labell.text =i['sum']
self.parent.ids.labell.text = i['sum']
except Exception as e:
self._get_commands_error_dzyk(request, str(e))
def _get_commands_result_dzyk_friend(self, request, response):
try:
self._pnl_friend.clear_widgets()
c = 0
for i in response:
if c < 10:
st ="%s:%s:%s"%( i['friend'],i['friend_username'],i['btcaddress_friend'])
self.data2[c]['text'] = st
c += 1
self._pnl_friend.add_widget(self.list_view2)
self.list_adapter2.data.prop.dispatch(self.list_adapter2.data.obj())
except Exception as e:
self._get_commands_error_dzyk(request, str(e))
def gofrequest(self, request, response):
try:
self.parent.ids.friendlabel.text = response
except Exception as e:
self._get_commands_error_dzyk(request, str(e))
def refresh_friends(self, instance=None):
# Implements API-call "Get available command list"
self._send_request_dzyk(
'friend_get/', params=None,
success=self._get_commands_result_dzyk_friend, error=self._get_commands_error_dzyk)
def getonefriend(self, instance=None):
# Implements API-call "Get available command list"
self._send_request_dzyk(
'getonefriend/', params=None,
success=self.gofrequest, error=self._get_commands_error_dzyk)
def getonefriendback(self, instance=None):
# Implements API-call "Get available command list"
self._send_request_dzyk(
'getonefriendback/', params=None,
success=self.gofrequest, error=self._get_commands_error_dzyk)
# add friend
def callback_request(self, request, response):
try:
print request
except Exception as e:
self._get_commands_error_dzyk(request, str(e))
def _dzyk_add_friend(self, instance=None):
p = {'friend_btc':'this field must be a modified', 'comment':'my project'}
px = ''
px=str(self.textinput_addfriend.text)
try:
px = re.search(r'^[13][a-km-zA-HJ-NP-Z1-9]{25,34}$',px).group(0)
except Exception as e:
px = '1PRpSMEd9TkjRodApnFBt2uEhGEDPVutyy'
print e
p['friend_btc']=px
#^[13][a-km-zA-HJ-NP-Z1-9]{25,34}$ p['comment']=re.search(r'^[0-9]+',sendname).group(0)
self._send_request_dzyk(
'add_friend/', params=p,
success=self.callback_request, error=self._get_commands_error_dzyk)
time.sleep(2)
# send score function
def _dzyk_send(self, instance=None):
p = {'friend':'1', 'score':'0.77'}
p['score']=self.scorelabel.text
p['friend']=self.friendlabel.text
self._send_request_dzyk(
'score_change/', params=p,
success=self.callback_request, error=self._get_commands_error_dzyk)
#
'''Widget that use the AndroidCamera and zbar to detect qrcode.
When found, the `symbols` will be updated
'''
camera_size = ListProperty([600, 480])
symbols = ListProperty([])
dataqr = StringProperty('')
# XXX can't work now, due to overlay.
show_bounds = BooleanProperty(False)
Qrcode = namedtuple('Qrcode',
['type', 'data', 'bounds', 'quality', 'count'])
def _examplefunc(self):
#s = str( randint(0,100))
#self.labell.text = s
self._send_request_dzyk(
'bal_sum/', params=None,
success=self._get_commands_result_dzyk_balance_allsum, error=self._get_commands_error_dzyk)
def __init__(self, **kwargs):
super(ZbarQrcodeDetector, self).__init__(**kwargs)
# my code
#
self.add_widget(self.labell)
def Course_thread(dt):
self.labell.text = "24923849"
self._examplefunc()
print "r"
#self.examplefunc("rrrr")
#self._send_request_dzyk(
# 'bal_sum/', params=None,
# success=self._get_commands_result_dzyk_balance_allsum, error=self._get_commands_error_dzyk)
Clock.schedule_interval(Course_thread, 1)
# ID of the command being executed
self._cmd_id = None
# List of the "completed" statuses.
# The first status should be "Done"
self._completed = []
# If True - sends a request to retrieve a command status
self._wait_completion = False
# requested command
self._command = (0, '')
#----------------------------------
self._camera = AndroidCamera(
size=self.camera_size,
size_hint=(None, None))
self._camera.bind(on_preview_frame=self._detect_qrcode_frame)
self.add_widget(self._camera)
# create a scanner used for detecting qrcode
self._scanner = ImageScanner()
self._scanner.setConfig(0, Config.ENABLE, 0)
self._scanner.setConfig(Symbol.QRCODE, Config.ENABLE, 1)
self._scanner.setConfig(0, Config.X_DENSITY, 3)
self._scanner.setConfig(0, Config.Y_DENSITY, 3)
def start(self):
self._camera.start()
def stop(self):
self._camera.stop()
def _detect_qrcode_frame(self, instance, camera, data):
# the image we got by default from a camera is using the NV21 format
# zbar only allow Y800/GREY image, so we first need to convert,
# then start the detection on the image
parameters = camera.getParameters()
size = parameters.getPreviewSize()
barcode = Image(size.width, size.height, 'NV21')
barcode.setData(data)
barcode = barcode.convert('Y800')
result = self._scanner.scanImage(barcode)
if result == 0:
self.symbols = []
return
# we detected qrcode! extract and dispatch them
symbols = []
it = barcode.getSymbols().iterator()
while it.hasNext():
symbol = it.next()
qrcode = ZbarQrcodeDetector.Qrcode(
type=symbol.getType(),
data=symbol.getData(),
quality=symbol.getQuality(),
count=symbol.getCount(),
bounds=symbol.getBounds())
symbols.append(qrcode)
self.dataqr = symbol.getData()
self.symbols = symbols
'''
# can't work, due to the overlay.
def on_symbols(self, instance, value):
if self.show_bounds:
self.update_bounds()
def update_bounds(self):
self.canvas.after.remove_group('bounds')
if not self.symbols:
return
with self.canvas.after:
Color(1, 0, 0, group='bounds')
for symbol in self.symbols:
x, y, w, h = symbol.bounds
x = self._camera.right - x - w
y = self._camera.top - y - h
Line(rectangle=[x, y, w, h], group='bounds')
'''
if __name__ == '__main__':
qrcode_kv = '''
BoxLayout:
orientation: 'vertical'
Label:
id: labell
text: "labell"
size_hint_y: None
height: '100dp'
Label:
id: friendlabel
text: "friendlabel"
size_hint_y: None
height: '100dp'
BoxLayout:
padding: 10
spacing: 10
size_hint_y: None
height: '48dp'
Button:
text: '>>'
on_release: detector.getonefriend()
Button:
text: '<<'
on_release: detector.getonefriendback()
BoxLayout:
size_hint_y: None
height: '48dp'
Button:
text: 'Send'
on_release: detector.start()
TextInput:
text: '0.02'
BoxLayout:
size_hint_y: None
height: '48dp'
TextInput:
text: ''
id: addfriendinput
text:repr(detector.dataqr)
height: '48dp'
BoxLayout:
size_hint_y: None
height: '48dp'
Button:
text: 'Add friend'
on_release: detector.start()
BoxLayout:
size_hint_y: None
height: '48dp'
Button:
text: 'Scan a qrcode'
on_release: detector.start()
Button:
text: 'Stop detection'
on_release: detector.stop()
ZbarQrcodeDetector:
id: detector
'''
class QrcodeExample(App):
def build(self):
return Builder.load_string(qrcode_kv)
QrcodeExample().run()