add qrcodereader

kivyblocks/baseWidget.py

@@ -65,6 +65,7 @@ from .login import LoginForm
 if platform == 'android':
 	from .widgetExt.phonebutton import PhoneButton
 	from .widgetExt.androidwebview import AWebView
+	from .widgetExt.camera import AndroidCamera
 
 class Text(BGColorBehavior, Label):
 	def __init__(self,bgcolor=[],fgcolor=[],color_level=-1,**kw):

kivyblocks/bgcolorbehavior.py

@@ -78,10 +78,8 @@ class BGColorBehavior(object):
 
 	def selected(self):
 		self.bgcolor = self.selected_bgcolor
-		Logger.info('selected:color=%s',self.bgcolor)
 		self.on_bgcolor()
 
 	def unselected(self):
 		self.bgcolor = self.normal_bgcolor
-		Logger.info('unselected:color=%s',self.bgcolor)
 		self.on_bgcolor()

kivyblocks/boxViewer.py

@@ -119,9 +119,7 @@ class BoxViewer(BoxLayout):
 		blocks = Factory.Blocks()
 		blocks.bind(on_built=partial(doit,self,holders,index))
 		blocks.bind(on_failed=doerr)
-		print('showObject():********here***********')
 		blocks.widgetBuild(options, ancestor=self)
-		print('showObject():********end ***********')
 
 	def on_scroll_stop(self,o,v=None):
 		if o.scroll_y <= 0.001:

kivyblocks/hostimage.py

@@ -14,7 +14,7 @@ class HostImage(Image):
 		super().__init__(**kwargs)
 		self.downloadImage(url)
 
-	def downloadImage(url):
+	def downloadImage(self,url):
 		realurl = absurl(url,self.target.parenturl)
 		loader = HTTPDataHandler(url,stream=True)
 		loader.bind(on_success=self.createTmpfile)
@@ -25,9 +25,10 @@ class HostImage(Image):
 		self.source = blockImage('broken.png')
 		
 	def createTmpfile(self,o,resp):
-		fn = tempfile.NamedTemporaryFile(delete=True)
+		fn = tempfile.mkstemp()[1]
+		print('************fn=%s',fn)
 		with open(fn, 'wb') as f:
-			for chunk in r.iter_content(chunk_size=8192): 
+			for chunk in resp.iter_content(chunk_size=8192): 
 				if chunk: # filter out keep-alive new chunks
 					f.write(chunk)
 					# f.flush()

kivyblocks/pagescontainer.py

@@ -54,7 +54,8 @@ class PageContainer(FloatLayout):
 		w = self.pageWidgets[-1]
 		self.pageWidgets = self.pageWidgets[:-1]
 		self.showLastPage()
-		w.__del__()
+		if hasattr(w,'__del__'):
+			w.__del__()
 
 	def add_widget(self,widget):
 		self.pageWidgets.append(widget)

kivyblocks/qrcodereader.py

@@ -0,0 +1,63 @@
+import numpy as np
+import cv2
+from kivy.app import App
+from kivy.core.window import Window
+from kivy.graphics.texture import Texture
+from kivy.uix.image import Image
+from kivy.clock import Clock
+
+class QRCodeReader(Image):
+	def __init__(self, **kwargs):
+		super().__init__(**kwargs)
+		self.register_event_type('on_data')
+		self.opened = False
+		self.task = None
+
+	def open(self):
+		self.opened = True
+		self.cam = cv2.VideoCapture(0)
+		self.detector = cv2.QRCodeDetector()
+		self.task = Clock.schedule_interval(self.read,1.0/30.0)
+		Window.add_widget(self)
+
+	def on_data(self,d):
+		print('QRCodeReader().on_data(),data=',d)
+		self.dismiss()
+
+	def on_touch_down(self,touch):
+		if not self.colide_point(*touch.pos):
+			self.dismiss()
+		super().on_touch_down(touch)
+
+	def dismiss(self):
+		if not self.opened:
+			return
+		self.opened = False
+		self.task.cancel()
+		self.task = None
+		self.cam.release()
+		cv2.destroyAllWindows()
+		Window.remove_widget(self)
+
+	def showImage(self,img):
+		image = np.rot90(np.swapaxes(img,0,1))
+		tex = Texture.create(size=(image.shape[1], image.shape[0]), 
+						colorfmt='rgb')
+		tex.blit_buffer(image.tostring(),colorfmt='rgb', bufferfmt='ubyte')
+		self.texture = tex
+
+	def read(self,p):
+		_, img = self.cam.read()
+		self.showImage(img)
+		data,bbox,_ = self.detector.detectAndDecode(img)
+		if data:
+			self.dispatch('on_data',data)
+
+if __name__ == '__main__':
+	class MyApp(App):
+		def build(self):
+			r = QRCodeReader()
+			return r
+	myapp = MyApp()
+	myapp.run()
+

kivyblocks/register.py

@@ -4,6 +4,7 @@ from .tree import Tree, TextTree, PopupMenu
 from .toolbar import ToolPage, Toolbar
 from .dg import DataGrid
 from .vplayer import VPlayer
+from .aplayer import APlayer
 from .form import Form, StrSearchForm
 from .boxViewer import BoxViewer
 from .pagescontainer import PageContainer
@@ -38,6 +39,8 @@ r('Tree',Tree)
 r('TextTree',TextTree)
 r('PopupMenu',PopupMenu)
 r('HostImage',HostImage)
+r('APlayer',APlayer)
 if platform == 'android':
 	r('PhoneButton',PhoneButton)
 	r('AWebView',AWebView)
+	r('AndroidCamera',AndroidCamera)

kivyblocks/swipebehavior.py

@@ -0,0 +1,83 @@
+import time
+from kivy.logger import Logger
+from kivy.event import EventDispatcher
+
+class SwipeBehavior(EventDispatcher):
+	def __init__(self, **kwargs):
+		self.register_event_type('on_context_menu')
+		self.register_event_type('on_swipe_left')
+		self.register_event_type('on_swipe_right')
+		self.register_event_type('on_swipe_up')
+		self.register_event_type('on_swipe_down')
+		self.sb_start_point = None
+		self.sb_end_point = None
+		self.sb_start_time = None
+		self.sb_end_time = None
+		self.threshold=20
+		self.threshold_time = 1.5
+
+	def on_context_menu(self):
+		Logger.info('SwipeBehavior:on_context_menu fired')
+
+	def on_swipe_left(self):
+		Logger.info('SwipeBehavior:on_swipe_left fired')
+		pass
+
+	def on_swipe_right(self):
+		Logger.info('SwipeBehavior:on_swipe_right fired')
+		pass
+
+	def on_swipe_up(self):
+		Logger.info('SwipeBehavior:on_swipe_up fired')
+		pass
+
+	def on_swipe_down(self):
+		Logger.info('SwipeBehavior:on_swipe_down fired')
+		pass
+
+	def on_touch_down(self,touch):
+		if self.collide_point(*touch.pos):
+			self.sb_start_point = pos
+			self.sb_start_time = time.time()
+		return super().on_touch_down(touch)
+
+	def on_touch_move(self,touch):
+		if self.collide_point(*touch.pos):
+			if self.sb_start_point is None:
+				self.sb_start_point = touch.pos
+			else:
+				self.sb_end_point = touch.pos
+		return super().on_touch_move()
+
+	def on_touch_up(self,touch):
+		if self.collide_point(*touch.pos):
+			self.sb_end_point = touch.pos
+			self.sb_end_time = time.time()
+			self.check_context_menu()
+		self.check_swipe()
+		self.sb_start_point = None
+		self.sb_end_point = None
+		self.sb_start_time = None
+		self.sb_end_time = None
+		super().on_touch_up()
+
+	def check_context_menu(self):
+		if not self.sb_start_time:
+			return
+		if not self.sb_end_time:
+			return
+		if self.sb_end_time - self.sb_start_time > self.threshold_time:
+			self.dispatch('on_context_menu')
+
+	def check_swipe(self):
+		if abs(self.sb_end_point.x - self.sb_start_point.x) > \
+					abs(self.sb_end_point.y - self.sb_start_point.y):
+			if self.sb_end_point.x - self.sb_start_point.x > self.threshold:
+				self.dispatch('on_swipe_right')
+			elif self.sb_start_point.x - self.sb_end_point.x > self.threshold:
+				self.dispatch('on_swipe_left')
+		else:
+			if self.sb_end_point.y - self.sb_start_point.y > self.threshold:
+				self.dispatch('on_swipe_up')
+			elif self.sb_start_point.y - self.sb_end_point.x > self.threshold:
+				self.dispatch('on_swipe_down')

kivyblocks/vplayer.py

@@ -23,6 +23,7 @@ from ffpyplayer.tools import set_log_callback
 from .utils import *
 from .paging import PageLoader
 from .baseWidget import PressableImage
+from .swipebehavior import SwipeBehavior
 
 desktopOSs=[
 	"win",
@@ -47,10 +48,11 @@ class UrlPlayList(PageLoader):
 		id = d['rows'][0].id
 		self.player.play(id)
 
-class BaseVPlayer(FloatLayout):
+class BaseVPlayer(FloatLayout, SwipeBehavior):
 	fullscreen = BooleanProperty(False)
 	def __init__(self,vfile=None,playlist=[]):
-		super().__init__()
+		FloatLayout.__init__(self)
+		SwipeBehavior.__init__(self)
 		self.register_event_type('on_source_error')
 		self.register_event_type('on_next')
 		self.register_event_type('on_previous')
@@ -70,6 +72,18 @@ class BaseVPlayer(FloatLayout):
 		if hasattr(self._video._video, '_ffplayer'):
 			self.ffplayer = self._video._video._ffplayer
 
+	def on_swipe_down(self):
+		self.stop()
+		self.dispatch('on_next')
+
+	on_swipe_right = on_swipe_down
+
+	def on_swipe_up(self):
+		self.stop()
+		self.dispatch('on_previous')
+
+	on_swipe_left = on_swipe_up
+
 	def setSource(self,s):
 		self.stop()
 		self.curplay = 0
@@ -104,9 +118,11 @@ class BaseVPlayer(FloatLayout):
 			self._video.state = 'play'
 	
 	def next(self,o=None,v=None):
+		self.stop()
 		self.dispatch('on_next',self)
 
 	def previous(self,o=None,v=None):
+		self.stop()
 		self.dispatch('on_previous',self)
 
 	def on_state(self,o=None,v=None):
@@ -307,12 +323,18 @@ class VPlayer(BaseVPlayer):
 			self.slider.max = self._video.duration
 		self.maxposition.text = self.totime(self._video.duration)
 
+	def stop(self):
+		if self.update_task is not None:
+			self.update_task.cancel()
+			self.update_task = None
+		super().stop()
+
 	def __del__(self):
 		self.beforeDestroy()
 
 	def beforeDestroy(self):
 		print('beforeDestroy() called')
-		self._video.state = 'stop'
+		self.stop()
 		return True
 
 	def show_hide_menu(self,obj,touch):

kivyblocks/widgetExt/camera.py

@@ -23,67 +23,33 @@ class AndroidCamera(Camera):
 		intent.putExtra(MediaStore.EXTRA_OUTPUT, parcelable)
 		activity.startActivityForResult(intent, 0x123)
 
-
-
 	def _take_video(self, on_complete, filename=None):
-
 		assert(on_complete is not None)
-
 		self.on_complete = on_complete
-
 		self.filename = filename
-
 		android.activity.unbind(on_activity_result=self._on_activity_result)
-
 		android.activity.bind(on_activity_result=self._on_activity_result)
-
 		intent = Intent(MediaStore.ACTION_VIDEO_CAPTURE)
-
 		uri = Uri.parse('file://' + filename)
-
 		parcelable = cast('android.os.Parcelable', uri)
-
 		intent.putExtra(MediaStore.EXTRA_OUTPUT, parcelable)
-
-
-
 		# 0 = low quality, suitable for MMS messages,
-
 		# 1 = high quality
-
 		intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1)
-
 		activity.startActivityForResult(intent, 0x123)
 
-
-
 	def _on_activity_result(self, requestCode, resultCode, intent):
-
 		if requestCode != 0x123:
-
 			return
-
 		android.activity.unbind(on_activity_result=self._on_activity_result)
-
 		if self.on_complete(self.filename):
-
 			self._remove(self.filename)
 
-
-
 	def _remove(self, fn):
-
 		try:
-
 			remove(fn)
-
 		except OSError:
-
 			pass
 
-
-
-
-
 def instance():
 	return AndroidCamera()