This commit is contained in:
yumoqing 2020-08-01 21:24:22 +08:00
parent c9510fbdf5
commit 757c080f1c
2 changed files with 120 additions and 159 deletions

View File

@ -6,7 +6,7 @@ from functools import partial
from kivy.factory import Factory from kivy.factory import Factory
from kivy.uix.floatlayout import FloatLayout from kivy.uix.floatlayout import FloatLayout
from kivy.uix.image import Image
from kivy.graphics.texture import Texture from kivy.graphics.texture import Texture
from kivy.properties import StringProperty from kivy.properties import StringProperty
from kivy.properties import ObjectProperty, StringProperty, ListProperty,\ from kivy.properties import ObjectProperty, StringProperty, ListProperty,\
@ -15,45 +15,7 @@ from kivy.lang import Builder
from kivy.clock import Clock from kivy.clock import Clock
import qrcode import qrcode
Builder.load_string('''
<QRCodeWidget>
on_parent: if args[1]: qrimage.source = self.loading_image
canvas.before:
# Draw white Rectangle
Color:
rgba: root.background_color
Rectangle:
size: self.size
pos: self.pos
canvas.after:
Color:
rgba: .5, .5, .5, 1 if root.show_border else 0
Line:
width: dp(1.333)
points:
dp(2), dp(2),\
self.width - dp(2), dp(2),\
self.width - dp(2), self.height - dp(2),\
dp(2), self.height - dp(2),\
dp(2), dp(2)
Image
id: qrimage
pos_hint: {'center_x': .5, 'center_y': .5}
allow_stretch: True
size_hint: None, None
size: root.width * .9, root.height * .9
''')
class QRCodeWidget(FloatLayout): class QRCodeWidget(FloatLayout):
show_border = BooleanProperty(True)
'''Whether to show border around the widget.
:data:`show_border` is a :class:`~kivy.properties.BooleanProperty`,
defaulting to `True`.
'''
data = StringProperty(None, allow_none=True) data = StringProperty(None, allow_none=True)
''' Data using which the qrcode is generated. ''' Data using which the qrcode is generated.
@ -61,14 +23,6 @@ class QRCodeWidget(FloatLayout):
`None`. `None`.
''' '''
background_color = ListProperty((1, 1, 1, 1))
''' Background color of the background of the widget to be displayed
behind the qrcode.
:data:`background_color` is a :class:`~kivy.properties.ListProperty`,
defaulting to `(1, 1, 1, 1)`.
'''
loading_image = StringProperty('data/images/image-loading.gif') loading_image = StringProperty('data/images/image-loading.gif')
'''Intermediate image to be displayed while the widget ios being loaded. '''Intermediate image to be displayed while the widget ios being loaded.
@ -77,23 +31,27 @@ class QRCodeWidget(FloatLayout):
''' '''
def __init__(self, **kwargs): def __init__(self, **kwargs):
super(QRCodeWidget, self).__init__(**kwargs) self.qrimage = Image(allow_stretch=True)
self.addr = None self.addr = None
super(QRCodeWidget, self).__init__(**kwargs)
self.background_color = [1,1,1,1]
self.qr = None self.qr = None
self._qrtexture = None self._qrtexture = None
self.qrimage.pos_hint = {'center_x':0.5, 'center_y':0.5}
self.add_widget(self.qrimage)
def on_size(self,o,s):
self.qrimage.width = self.width
self.qrimage.height = self.height
self.on_data(None,self.data)
def on_data(self, instance, value): def on_data(self, instance, value):
if not (self.canvas or value): if not (self.canvas or value):
return return
img = self.ids.get('qrimage', None) img = self.qrimage
if not img:
# if texture hasn't yet been created delay the texture updation
Clock.schedule_once(lambda dt: self.on_data(instance, value))
return
img.anim_delay = .25 img.anim_delay = .25
img.source = self.loading_image img.source = self.loading_image
Thread(target=partial(self.generate_qr, value)).start() self.generate_qr(value)
def generate_qr(self, value): def generate_qr(self, value):
self.set_addr(value) self.set_addr(value)
@ -122,16 +80,17 @@ class QRCodeWidget(FloatLayout):
) )
qr.add_data(addr) qr.add_data(addr)
qr.make(fit=True) qr.make(fit=True)
except Exception as e: self.qr = qr
print(e)
self.qr=None
self.update_texture() self.update_texture()
except Exception as e:
print('eeeee',e)
self.qr=None
def setMinimumSize(self, size): def setMinimumSize(self, size):
# currently unused, do we need this? # currently unused, do we need this?
self._texture_size = size self._texture_size = size
def _create_texture(self, k, dt): def _create_texture(self, k):
self._qrtexture = texture = Texture.create(size=(k,k), colorfmt='rgb') self._qrtexture = texture = Texture.create(size=(k,k), colorfmt='rgb')
# don't interpolate texture # don't interpolate texture
texture.min_filter = 'nearest' texture.min_filter = 'nearest'
@ -143,10 +102,7 @@ class QRCodeWidget(FloatLayout):
matrix = self.qr.get_matrix() matrix = self.qr.get_matrix()
k = len(matrix) k = len(matrix)
self._create_texture(k)
# create the texture in main UI thread otherwise
# this will lead to memory corruption
Clock.schedule_once(partial(self._create_texture, k), -1)
cr, cg, cb, ca = self.background_color[:] cr, cg, cb, ca = self.background_color[:]
@ -161,7 +117,7 @@ class QRCodeWidget(FloatLayout):
# join not neccesarry when using a byte array # join not neccesarry when using a byte array
# buff =''.join(map(chr, buff)) # buff =''.join(map(chr, buff))
# update texture in UI thread. # update texture in UI thread.
Clock.schedule_once(lambda dt: self._upd_texture(buff)) self._upd_texture(buff)
def _upd_texture(self, buff): def _upd_texture(self, buff):
texture = self._qrtexture texture = self._qrtexture
@ -172,7 +128,7 @@ class QRCodeWidget(FloatLayout):
texture.blit_buffer(buff, colorfmt='rgb', bufferfmt='ubyte') texture.blit_buffer(buff, colorfmt='rgb', bufferfmt='ubyte')
texture.flip_vertical() texture.flip_vertical()
img = self.ids.qrimage img = self.qrimage
img.anim_delay = -1 img.anim_delay = -1
img.texture = texture img.texture = texture
img.canvas.ask_update() img.canvas.ask_update()
@ -183,4 +139,8 @@ if __name__ == '__main__':
from kivy.app import runTouchApp from kivy.app import runTouchApp
import sys import sys
data = str(sys.argv[1:]) data = str(sys.argv[1:])
runTouchApp(QRCodeWidget(data=data)) data = """{
"host":"122.22.22.33",
"port":12345
}"""
runTouchApp(Factory.QRCodeWidget(data=data))

View File

@ -250,15 +250,16 @@ class OSC_VPlayer(BaseVPlayer):
self.map('/next',self.next) self.map('/next',self.next)
self.map('/previous',self.previous) self.map('/previous',self.previous)
t = threading.Thread(target=self.server.serve_forever) t = threading.Thread(target=self.server.serve_forever)
t.daemon_threads = True
t.start() t.start()
self.fullscreen = True
label = Label(text='%s %d' % (self.ip,self.port), font_size=CSize(2)) def osc_server_quit(self):
label.x = self.width - label.width, 0 self.server.shutdown()
label.y = 0 self.server.server_close()
self.add_widget(label)
def __del__(self): def __del__(self):
self.server.server_close() print("*******************VPlayer deleted**********")
self.quit()
def map(self,p,f): def map(self,p,f):
self.dispatcher.map(p,f,None) self.dispatcher.map(p,f,None)