bugfix
This commit is contained in:
yumoqing
parent
c9510fbdf5
commit
757c080f1c
@ -6,181 +6,141 @@ from functools import partial
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from kivy.factory import Factory
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from kivy.uix.floatlayout import FloatLayout
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from kivy.uix.image import Image
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from kivy.graphics.texture import Texture
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from kivy.properties import StringProperty
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from kivy.properties import ObjectProperty, StringProperty, ListProperty,\
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BooleanProperty
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BooleanProperty
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from kivy.lang import Builder
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from kivy.clock import Clock
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import qrcode
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Builder.load_string('''
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<QRCodeWidget>
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on_parent: if args[1]: qrimage.source = self.loading_image
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canvas.before:
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# Draw white Rectangle
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Color:
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rgba: root.background_color
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Rectangle:
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size: self.size
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pos: self.pos
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canvas.after:
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Color:
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rgba: .5, .5, .5, 1 if root.show_border else 0
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Line:
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width: dp(1.333)
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points:
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dp(2), dp(2),\
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self.width - dp(2), dp(2),\
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self.width - dp(2), self.height - dp(2),\
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dp(2), self.height - dp(2),\
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dp(2), dp(2)
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Image
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id: qrimage
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pos_hint: {'center_x': .5, 'center_y': .5}
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allow_stretch: True
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size_hint: None, None
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size: root.width * .9, root.height * .9
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''')
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class QRCodeWidget(FloatLayout):
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data = StringProperty(None, allow_none=True)
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''' Data using which the qrcode is generated.
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show_border = BooleanProperty(True)
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'''Whether to show border around the widget.
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:data:`data` is a :class:`~kivy.properties.StringProperty`, defaulting to
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`None`.
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'''
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:data:`show_border` is a :class:`~kivy.properties.BooleanProperty`,
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defaulting to `True`.
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'''
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loading_image = StringProperty('data/images/image-loading.gif')
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'''Intermediate image to be displayed while the widget ios being loaded.
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data = StringProperty(None, allow_none=True)
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''' Data using which the qrcode is generated.
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:data:`loading_image` is a :class:`~kivy.properties.StringProperty`,
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defaulting to `'data/images/image-loading.gif'`.
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'''
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:data:`data` is a :class:`~kivy.properties.StringProperty`, defaulting to
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`None`.
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'''
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def __init__(self, **kwargs):
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self.qrimage = Image(allow_stretch=True)
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self.addr = None
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super(QRCodeWidget, self).__init__(**kwargs)
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self.background_color = [1,1,1,1]
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self.qr = None
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self._qrtexture = None
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self.qrimage.pos_hint = {'center_x':0.5, 'center_y':0.5}
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self.add_widget(self.qrimage)
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background_color = ListProperty((1, 1, 1, 1))
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''' Background color of the background of the widget to be displayed
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behind the qrcode.
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def on_size(self,o,s):
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self.qrimage.width = self.width
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self.qrimage.height = self.height
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self.on_data(None,self.data)
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:data:`background_color` is a :class:`~kivy.properties.ListProperty`,
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defaulting to `(1, 1, 1, 1)`.
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'''
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def on_data(self, instance, value):
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if not (self.canvas or value):
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return
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img = self.qrimage
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img.anim_delay = .25
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img.source = self.loading_image
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self.generate_qr(value)
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loading_image = StringProperty('data/images/image-loading.gif')
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'''Intermediate image to be displayed while the widget ios being loaded.
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def generate_qr(self, value):
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self.set_addr(value)
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self.update_qr()
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:data:`loading_image` is a :class:`~kivy.properties.StringProperty`,
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defaulting to `'data/images/image-loading.gif'`.
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'''
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def set_addr(self, addr):
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if self.addr == addr:
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return
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MinSize = 210 if len(addr) < 128 else 500
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self.setMinimumSize((MinSize, MinSize))
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self.addr = addr
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self.qr = None
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def __init__(self, **kwargs):
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super(QRCodeWidget, self).__init__(**kwargs)
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self.addr = None
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self.qr = None
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self._qrtexture = None
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def update_qr(self):
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if not self.addr and self.qr:
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return
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QRCode = qrcode.QRCode
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L = qrcode.constants.ERROR_CORRECT_L
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addr = self.addr
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try:
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self.qr = qr = QRCode(
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version=None,
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error_correction=L,
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box_size=10,
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border=0,
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)
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qr.add_data(addr)
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qr.make(fit=True)
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self.qr = qr
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self.update_texture()
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except Exception as e:
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print('eeeee',e)
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self.qr=None
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def on_data(self, instance, value):
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if not (self.canvas or value):
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return
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img = self.ids.get('qrimage', None)
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def setMinimumSize(self, size):
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# currently unused, do we need this?
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self._texture_size = size
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if not img:
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# if texture hasn't yet been created delay the texture updation
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Clock.schedule_once(lambda dt: self.on_data(instance, value))
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return
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img.anim_delay = .25
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img.source = self.loading_image
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Thread(target=partial(self.generate_qr, value)).start()
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def _create_texture(self, k):
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self._qrtexture = texture = Texture.create(size=(k,k), colorfmt='rgb')
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# don't interpolate texture
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texture.min_filter = 'nearest'
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texture.mag_filter = 'nearest'
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def generate_qr(self, value):
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self.set_addr(value)
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self.update_qr()
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def update_texture(self):
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if not self.addr:
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return
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def set_addr(self, addr):
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if self.addr == addr:
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return
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MinSize = 210 if len(addr) < 128 else 500
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self.setMinimumSize((MinSize, MinSize))
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self.addr = addr
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self.qr = None
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def update_qr(self):
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if not self.addr and self.qr:
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return
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QRCode = qrcode.QRCode
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L = qrcode.constants.ERROR_CORRECT_L
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addr = self.addr
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try:
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self.qr = qr = QRCode(
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version=None,
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error_correction=L,
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box_size=10,
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border=0,
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)
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qr.add_data(addr)
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qr.make(fit=True)
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except Exception as e:
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print(e)
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self.qr=None
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self.update_texture()
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def setMinimumSize(self, size):
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# currently unused, do we need this?
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self._texture_size = size
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def _create_texture(self, k, dt):
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self._qrtexture = texture = Texture.create(size=(k,k), colorfmt='rgb')
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# don't interpolate texture
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texture.min_filter = 'nearest'
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texture.mag_filter = 'nearest'
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def update_texture(self):
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if not self.addr:
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return
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matrix = self.qr.get_matrix()
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k = len(matrix)
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# create the texture in main UI thread otherwise
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# this will lead to memory corruption
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Clock.schedule_once(partial(self._create_texture, k), -1)
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matrix = self.qr.get_matrix()
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k = len(matrix)
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self._create_texture(k)
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cr, cg, cb, ca = self.background_color[:]
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cr, cg, cb = 255, 255, 255
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###used bytearray for python 3.5 eliminates need for btext
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buff = bytearray()
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for r in range(k):
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for c in range(k):
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buff.extend([0, 0, 0] if matrix[r][c] else [cr, cg, cb])
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cr, cg, cb, ca = self.background_color[:]
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cr, cg, cb = 255, 255, 255
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###used bytearray for python 3.5 eliminates need for btext
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buff = bytearray()
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for r in range(k):
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for c in range(k):
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buff.extend([0, 0, 0] if matrix[r][c] else [cr, cg, cb])
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# then blit the buffer
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# join not neccesarry when using a byte array
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# buff =''.join(map(chr, buff))
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# update texture in UI thread.
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Clock.schedule_once(lambda dt: self._upd_texture(buff))
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# then blit the buffer
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# join not neccesarry when using a byte array
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# buff =''.join(map(chr, buff))
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# update texture in UI thread.
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self._upd_texture(buff)
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def _upd_texture(self, buff):
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texture = self._qrtexture
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if not texture:
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# if texture hasn't yet been created delay the texture updation
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Clock.schedule_once(lambda dt: self._upd_texture(buff))
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return
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def _upd_texture(self, buff):
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texture = self._qrtexture
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if not texture:
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# if texture hasn't yet been created delay the texture updation
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Clock.schedule_once(lambda dt: self._upd_texture(buff))
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return
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texture.blit_buffer(buff, colorfmt='rgb', bufferfmt='ubyte')
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texture.flip_vertical()
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img = self.ids.qrimage
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img.anim_delay = -1
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img.texture = texture
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img.canvas.ask_update()
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texture.blit_buffer(buff, colorfmt='rgb', bufferfmt='ubyte')
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texture.flip_vertical()
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img = self.qrimage
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img.anim_delay = -1
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img.texture = texture
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img.canvas.ask_update()
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Factory.register('QRCodeWidget',QRCodeWidget)
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if __name__ == '__main__':
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from kivy.app import runTouchApp
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import sys
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data = str(sys.argv[1:])
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runTouchApp(QRCodeWidget(data=data))
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from kivy.app import runTouchApp
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import sys
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data = str(sys.argv[1:])
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data = """{
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"host":"122.22.22.33",
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"port":12345
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}"""
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runTouchApp(Factory.QRCodeWidget(data=data))
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@ -250,15 +250,16 @@ class OSC_VPlayer(BaseVPlayer):
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self.map('/next',self.next)
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self.map('/previous',self.previous)
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t = threading.Thread(target=self.server.serve_forever)
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t.daemon_threads = True
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t.start()
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self.fullscreen = True
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label = Label(text='%s %d' % (self.ip,self.port), font_size=CSize(2))
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label.x = self.width - label.width, 0
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label.y = 0
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self.add_widget(label)
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def osc_server_quit(self):
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self.server.shutdown()
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self.server.server_close()
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def __del__(self):
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self.server.server_close()
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print("*******************VPlayer deleted**********")
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self.quit()
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def map(self,p,f):
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self.dispatcher.map(p,f,None)
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