SignalFrameController.py 文件源码

def draw_spectrogram(self, show_full_scene=False, force_redraw=False):
        self.setCursor(Qt.WaitCursor)
        window_size = 2 ** self.ui.sliderFFTWindowSize.value()
        data_min, data_max = self.ui.sliderSpectrogramMin.value(), self.ui.sliderSpectrogramMax.value()

        redraw_needed = self.ui.gvSpectrogram.scene_manager.set_parameters(self.signal.data, window_size=window_size,
                                                                           data_min=data_min, data_max=data_max)
        self.ui.gvSpectrogram.scene_manager.update_scene_rect()

        if show_full_scene:
            self.ui.gvSpectrogram.show_full_scene()

        if redraw_needed or force_redraw:
            self.ui.gvSpectrogram.scene_manager.show_full_scene()
            self.ui.gvSpectrogram.show_full_scene()

        self.on_slider_y_scale_value_changed()

        self.__set_samples_in_view()
        self.unsetCursor()