def mouse_down(self, ips, x, y, btn, **key):
lim = 5.0 / key['canvas'].get_scale()
if btn == 1 or btn == 3:
if ips.roi != None:
self.curobj = ips.roi.pick(x, y, lim)
if not self.curobj in (None, True): return
if ips.roi == None:
msk = floodfill(ips.img, x, y, self.para['tor'],
self.para['con'] == '8-connect')
conts = find_contours(msk, 0, 'high')
ips.roi = shape2roi(polygonize(conts, btn == 3))
elif hasattr(ips.roi, 'topolygon'):
shp = roi2shape(ips.roi.topolygon())
oper = ''
if key['shift']: oper = '+'
elif key['ctrl']: oper = '-'
elif self.curobj: return
else: ips.roi = None
msk = floodfill(ips.img, x, y, self.para['tor'],
self.para['con'] == '8-connect')
conts = find_contours(msk, 0, 'high')
cur = polygonize(conts, btn == 3)
if oper == '+':
ips.roi = shape2roi(shp.union(cur))
elif oper == '-':
ips.roi = shape2roi(shp.difference(cur))
else:
ips.roi = shape2roi(cur)
else:
ips.roi = None
ips.update()
def mouse_down(self, ips, x, y, btn, **key):
ips.snapshot()
msk = floodfill(ips.img, x, y, self.para['tor'], self.para['con']=='8-connect')
#plt.imshow(msk)
#plt.show()
color = ColorManager.get_front()
if ips.get_nchannels()==1:color = np.mean(color)
ips.img[msk] = color
ips.update = 'pix'