gardenGraph.py 文件源码

def __init__(self, **kwargs):
        super(Graph, self).__init__(**kwargs)

        with self.canvas:
            self._fbo = Fbo(size=self.size, with_stencilbuffer=self._with_stencilbuffer)

        with self._fbo:
            self._background_color = Color(*self.background_color)
            self._background_rect = Rectangle(size=self.size)
            self._mesh_ticks_color = Color(*self.tick_color)
            self._mesh_ticks = Mesh(mode='lines')
            self._mesh_rect_color = Color(*self.border_color)
            self._mesh_rect = Mesh(mode='line_strip')

        with self.canvas:
            Color(1, 1, 1)
            self._fbo_rect = Rectangle(size=self.size, texture=self._fbo.texture)

        mesh = self._mesh_rect
        mesh.vertices = [0] * (5 * 4)
        mesh.indices = range(5)

        self._plot_area = StencilView()
        self.add_widget(self._plot_area)

        t = self._trigger = Clock.create_trigger(self._redraw_all)
        ts = self._trigger_size = Clock.create_trigger(self._redraw_size)
        tc = self._trigger_color = Clock.create_trigger(self._update_colors)

        self.bind(center=ts, padding=ts, precision=ts, plots=ts, x_grid=ts,
                  y_grid=ts, draw_border=ts)
        self.bind(xmin=t, xmax=t, xlog=t, x_ticks_major=t, x_ticks_minor=t,
                  xlabel=t, x_grid_label=t, ymin=t, ymax=t, ylog=t,
                  y_ticks_major=t, y_ticks_minor=t, ylabel=t, y_grid_label=t,
                  font_size=t, label_options=t)
        self.bind(tick_color=tc, background_color=tc, border_color=tc)
        self._trigger()