band_graph.py 文件源码

def init(self):

        self.main_vbox = QVBoxLayout()

        self.my_figure=Figure(figsize=(5,4), dpi=100)
        self.canvas = FigureCanvas(self.my_figure)
        self.canvas.mpl_connect('key_press_event', self.press)
        self.canvas.setFocusPolicy( Qt.ClickFocus )
        self.canvas.setFocus()
        self.canvas.figure.patch.set_facecolor('white')
        #self.canvas.set_size_request(600, 400)
        self.canvas.show()

        self.main_vbox.addWidget(self.canvas)

        #self.canvas.connect('key_press_event', self.on_key_press_event)


        self.setLayout(self.main_vbox)


#   def keyPressEvent(self, event):
#       pritn("oh")
#
#       keyname = ''
#       key = event.key()
#       modifiers = int(event.modifiers())
#       if (Qt.CTRL & modifiers)==modifiers and key==67:
#           self.do_clip()
#           self.canvas.draw()