ztv.py 文件源码

def on_button_press(self, event):
        if event.button == 1:  # left button
            if self.cursor_mode == 'Zoom':
                if event.dblclick:
                    self.center = wx.RealPoint(event.xdata, event.ydata)
                    self.ztv_frame.zoom_factor /= 2.
                    self.set_and_get_xy_limits()
                else:
                    self.zoom_start_timestamp = time.time()
                    self.zoom_rect = Rectangle((event.xdata, event.ydata), 0, 0,
                                               color='orange', fill=False, zorder=100)
                    self.axes.add_patch(self.zoom_rect)
                    self.figure.canvas.draw()
            elif self.cursor_mode == 'Pan':
                self.center = wx.RealPoint(event.xdata, event.ydata)
                self.set_and_get_xy_limits()
            else:
                if (self.available_cursor_modes.has_key(self.cursor_mode) and
                    self.available_cursor_modes[self.cursor_mode].has_key('on_button_press')):
                    self.available_cursor_modes[self.cursor_mode]['on_button_press'](event)