class Central:
kernel = None
view = None
fpac_path = None
pac = None
def __init__(self):
self.kernel = Compressor()
self.view = View()
def run(self):
self.view.actions.subscribe(self)
self.view.info.subscribe(self)
#
self.kernel.subscribe(self.view.actions)
self.kernel.subscribe(self.view.info)
self.kernel.subscribe(self.view.props)
#
self.view.run()
def load_invoked(self, path):
self.kernel.image.load(path)
self.kernel.image.show(self.view.graph.axes)
self.view.graph.redraw()
#
self.view.info.send('Image is loaded')
#self.view.info.send('Image isn\'t loaded')
def select_invoked(self):
self.view.graph.create_selector(callback=self.kernel.image.crop)
def compress_invoked(self):
try:
tic = time.time()
self.kernel.run()
toc = time.time() - tic
except MemoryError:
tkMessageBox.showerror('Not enough memory',
'Please select a smaller fragment of the image')
self.view.info.send('Image isn\'t compressed')
return
#
self.view.info.send('{0:.2f} sec. ({1:.2f} min.) has elapsed'.format(toc, toc / 60))
c = self.kernel.fpac.compression(self.kernel.image)
self.view.info.send('Compression: {0:.2f}%'.format(c))
def save_invoked(self, path):
self.fpac_path = path
self.kernel.fpac.save(path)
self.view.info.send('Compressed image is saved')
def decompress_invoked(self):
if self.fpac_path == None:
return
#
self.pac = Decompressor()
self.pac.fpac.load(self.fpac_path)
#
tic = time.time()
self.pac.run()
toc = time.time() - tic
#
self.view.info.send('Image is reconstructed')
self.view.info.send('{0:.2f} sec. ({1:.2f} min.) has elapsed'.format(toc, toc / 60))
#
(width, height) = self.kernel.option.fix_image_size(self.pac.image)
(width, height) = self.kernel.option.fix_image_size(self.kernel.image)
rms = self.kernel.image.rmsdiff(self.pac.image)
self.view.info.send('RMS error between source and reconstructed image:')
self.view.info.send('{0:.2f}%'.format(rms))
def resave_invoked(self, path):
self.pac.image.save(path)
self.view.info.send('Decompressed image is saved')
def progress_stopped(self):
self.kernel.is_process = False
def __init__(self): self.kernel = Compressor() self.view = View()