113 lines
3.5 KiB
Python
113 lines
3.5 KiB
Python
from bitmessagekivy.get_platform import platform
|
|
import os
|
|
|
|
from kivy.clock import Clock
|
|
from kivy.lang import Builder
|
|
from kivy.properties import (
|
|
BooleanProperty,
|
|
ObjectProperty,
|
|
StringProperty
|
|
)
|
|
|
|
from kivy.uix.screenmanager import Screen
|
|
|
|
|
|
# if platform != "android":
|
|
# from kivy.config import Config
|
|
# from kivy_garden.zbarcam import ZBarCam
|
|
# from pyzbar.pyzbar import ZBarSymbol
|
|
|
|
# Config.set("input", "mouse", "mouse, multitouch_on_demand")
|
|
# elif platform == "android":
|
|
# from jnius import autoclass, cast
|
|
# from android.runnable import run_on_ui_thread
|
|
# from android import python_act as PythonActivity
|
|
|
|
# Toast = autoclass("android.widget.Toast")
|
|
# String = autoclass("java.lang.String")
|
|
# CharSequence = autoclass("java.lang.CharSequence")
|
|
# context = PythonActivity.mActivity
|
|
|
|
# @run_on_ui_thread
|
|
# def show_toast(text, length):
|
|
# """Its showing toast on screen"""
|
|
# t = Toast.makeText(context, text, length)
|
|
# t.show()
|
|
|
|
|
|
class ScanScreen(Screen):
|
|
camera_avaialbe = BooleanProperty(False)
|
|
previous_open_screen = StringProperty()
|
|
pop_up_instance = ObjectProperty()
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
"""Getting AddressBook Details"""
|
|
super(ScanScreen, self).__init__(*args, **kwargs)
|
|
self.check_camera()
|
|
|
|
def check_camera(self):
|
|
"""This method is used for checking camera avaibility"""
|
|
if platform != "android":
|
|
import cv2
|
|
cap = cv2.VideoCapture(0)
|
|
while(cap.isOpened()):
|
|
print('Camera is available!')
|
|
self.camera_avaialbe = True
|
|
break
|
|
else:
|
|
print("Camera is not available!")
|
|
self.camera_avaialbe = False
|
|
|
|
def get_screen(self, screen_name, instance=None):
|
|
"""This method is used for getting previous screen name"""
|
|
self.previous_open_screen = screen_name
|
|
if screen_name != 'composer':
|
|
self.pop_up_instance = instance
|
|
|
|
def on_pre_enter(self):
|
|
"""
|
|
on_pre_enter works little better on android
|
|
It affects screen transition on linux
|
|
"""
|
|
if not self.children:
|
|
tmp = Builder.load_file(
|
|
os.path.join(os.path.dirname(__file__), "kv/{}.kv").format("scanner")
|
|
)
|
|
self.add_widget(tmp)
|
|
if platform == "android":
|
|
Clock.schedule_once(self.start_camera, 0)
|
|
|
|
def on_enter(self):
|
|
"""
|
|
on_enter works better on linux
|
|
It creates a black screen on android until camera gets loaded
|
|
"""
|
|
# print(self.children)
|
|
if platform != "android":
|
|
# pass
|
|
Clock.schedule_once(self.start_camera, 0)
|
|
|
|
def on_leave(self):
|
|
# pass
|
|
Clock.schedule_once(self.stop_camera, 0)
|
|
|
|
def start_camera(self, *args):
|
|
"""Its used for starting camera for scanning qrcode"""
|
|
self.xcam = self.children[0].ids.zbarcam.ids.xcamera
|
|
if platform == "android":
|
|
self.xcam.play = True
|
|
|
|
else:
|
|
Clock.schedule_once(self.open_cam, 0)
|
|
|
|
def stop_camera(self, *args):
|
|
"""Its used for stop the camera"""
|
|
self.xcam.play = False
|
|
if platform != "android":
|
|
self.xcam._camera._device.release()
|
|
|
|
def open_cam(self, *args):
|
|
"""It will open up the camera"""
|
|
if not self.xcam._camera._device.isOpened():
|
|
self.xcam._camera._device.open(self.xcam._camera._index)
|
|
self.xcam.play = True |