class LfpPictureViewer():
"""View and refocues Processed LFP Picture files (*-stk.lfp)
"""
_active_size = (648, 648)
_tkroot = None
_lfp_path = None
_lfp = None
_active_sha1 = None
_images = None
_depth_lut = None
def __init__(self, lfp_path=None):
self._tkroot = Tkinter.Tk()
self._lfp_path = lfp_path
if lfp_path is None:
self._lfp_path = tkFileDialog.askopenfilename(defaultextension="lfp")
self._tkroot.wm_title(os.path.basename(self._lfp_path))
self._tkroot.protocol("WM_DELETE_WINDOW", self.quit)
self._tkroot.geometry("%dx%d" % self._active_size)
#self._tkroot.bind('<Configure>', self.resize)
self._lfp = LfpPictureFile(self._lfp_path).load()
try:
self._depth_lut = self._lfp.refocus_stack.depth_lut
self._images = dict( (i.chunk.sha1, Image.open(StringIO(i.chunk.data)))
for i in self._lfp.refocus_stack.images)
except:
raise Exception("Not a Processed LFP Picture file")
self._pic = Tkinter.Label(self._tkroot)
self._pic.bind("<Button-1>", self.click)
self._pic.pack()
self.focus_image()
self._tkroot.mainloop()
def focus_image(self, x=.5, y=.5):
self._active_sha1 = self._lfp.find_most_focused_f(x, y).chunk.sha1
self.draw_image(self._active_size)
def draw_image(self, size):
self._active_image = self._images[self._active_sha1].resize(size, Image.ANTIALIAS)
self._pimage = ImageTk.PhotoImage(self._active_image)
self._pic.configure(image=self._pimage)
def click(self, event):
self.focus_image(event.x / self._active_size[0],
event.y / self._active_size[1])
def quit(self):
self._tkroot.destroy()
self._tkroot.quit()
