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fixed_convert_and_kbframe.py
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fixed_convert_and_kbframe.py
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import ui
class RootView(ui.View):
def __init__(self):
'''Children must call RootView.__init__(self), in order to set up hidden webview!'''
self.__w=ui.WebView(frame=(1,1,1,1))
self.add_subview(self.__w)
def convert_point(self,point=(0,0),from_view=None,to_view=None):
'''fixed convert point for fullscreen application.
works for any present type
existing function in fullscreen reports relative to portrait
TODO: does not work if from_view or to_view has been Transformed'''
(w,h)=ui.get_screen_size()
#detect what convert_point things rotation is.
origin=ui.convert_point((0,0),from_view,to_view )
xaxis=ui.convert_point((1,0),from_view,to_view )
xaxis=[xaxis[j]-origin[j] for j in (0,1)]
yaxis=ui.convert_point((0,1),from_view,to_view )
yaxis=[yaxis[j]-origin[j] for j in (0,1)]
pt_c=ui.convert_point(tuple(point),from_view,to_view)
pt=[0,0]
if from_view is not None:
pt[0]=( (xaxis[0]==-1)*h
+ xaxis[0]*pt_c[0]
+ (yaxis[0]==1)*w
- yaxis[0]*pt_c[1])
pt[1] = ( (xaxis[1]==1)*h
- xaxis[1]*pt_c[0]
+ (yaxis[1]==-1)*w
+ yaxis[1]*pt_c[1])
else: #just get corrected origin, and subtract out
origin_offset=self.convert_point((0,0),to_view,from_view)
pt[0]= point[0] - origin_offset[0]
pt[1]= point[1] - origin_offset[1]
return tuple(pt)
def convert_rect(self,rect=(0,0,0,0),from_view=None,to_view=None):
pt=self.convert_point((rect[0],rect[1]), from_view,to_view)
return (pt[0], pt[1], rect[2], rect[3])
def get_keyboard_frame(self):
'''get corrected keyboard frame, in the screen coordinates.
built in function breaks when in fullscreen, as it reports kbframe relative to a landscape screen'''
#TODO: remove dependence on webview, use xaxis/yaxis to determine rotation instead
origin=ui.convert_point((0,0),None,self )
xaxis=ui.convert_point((1,0),None,self )
xaxis=[xaxis[j]-origin[j] for j in (0,1)]
yaxis=ui.convert_point((0,1),None,self )
yaxis=[yaxis[j]-origin[j] for j in (0,1)]
o=self.__w.eval_js('window.orientation')
frame=ui.get_keyboard_frame()
(w,h)=ui.get_screen_size()
if xaxis[0]==1 and yaxis[1]==1 and frame[0]==0:
#we are not in fullscreen, just return kbframe
fixedframe=frame
elif o=='0':
fixedframe= frame #ok
elif o=='-90':
fixedframe= [frame[1], frame[0], h,frame[2]]
elif o=='180':
fixedframe= [frame[0], h-frame[1]-frame[3], frame[2],frame[3]] #okrqq
elif o=='90':
fixedframe= [frame[1], w-frame[0]-frame[2],h,frame[2]]
else:
raise Error('UnexpectedOrientation')
return fixedframe
def get_orientation(self):
return self.__w.eval_js('window.orientation')
if __name__=='__main__':
class testconvert(RootView):
def __init__(self):
RootView.__init__(self)
self.t1=ui.Label(frame=(0,60,400,20))
self.t2=ui.Label(frame=(0,90,400,20))
self.t3=ui.TextView( frame=(0,120,700,200),bg_color=(0.7,0.7,0.7,0.5))
self.t3.text='textview for kb'
# the first time the keyboard appears, get kbframe is wrong...
# so, show then hide keyboard.
self.t3.begin_editing()
ui.delay(self.t3.end_editing,0.5)
# finally, show kbframe again
ui.delay(self.t3.begin_editing,1.0)
self.t1.text='touch to begin'
[self.add_subview(s) for s in [self.t1,self.t2,self.t3]]
def touch_began(self,touch):
self.t1.text='touch in view:={} == {}'.format(touch.location, self.convert_point(self.convert_point(touch.location,self,None),None ,self))
self.t2.text='touch in screen:={0:1}'.format(self.convert_point(touch.location,self,None))
def draw(self):
'''draw a green box around kb frame, padded by 10 pixels'''
kb=self.get_keyboard_frame()
# print kb
kb_self=self.convert_rect(kb,None,self)
# print kb_self
ui.set_color((0,1,0,0.5))
ui.fill_rect(kb_self[0]-10,kb_self[1]-10, kb_self[2]+20,kb_self[3]+20)
self.t3.text=('orientation {}\n'
'kbframe {}\n'
'kbframe fixed {}\n '
'kbframe in V {}\n').format(self.get_orientation(),ui.get_keyboard_frame(),kb,kb_self)
def keyboard_frame_did_change(self,frame):
'''wait a tiny bit, then update display.
i forget why i thought i needed the delay, maybe to ensure convert_point was updated.
does not seem to be needed now'''
ui.delay(self.set_needs_display,0.2)
def touch_moved(self,touch):
self.touch_began(touch)
#main code
import console
ptype=console.alert('select present type','select one','fullscreen','panel','sheet')
ptypes=('fullscreen','panel','sheet')
V=testconvert()
def show():
V.present(ptypes[ptype-1],hide_title_bar=False ) #works if hide is True too
V.bg_color=(1,1,1)
ui.delay(show,0.5) # wait until dialog is really gone