您需要使用双缓冲区技术：

http://en.wikipedia.org/wiki/Multiple_buffering#Double_buffering_in_computer_graphics

那就是您有一个图像，然后绘制该图像：该图像是“后台”缓冲区。您可以使用很多方法来绘制图像。然后，在响应“绘制”信号的回调上，也就是说，实际上在图形存储器中绘制内容的方法只是将您的“幕后”图像丢了。

代码理论（ test.py ）：

import cairo
from gi.repository import Gtk
from os.path import abspath, dirname, join

WHERE_AM_I = abspath(dirname(__file__))

class MyApp(object):
    """Double buffer in PyGObject with cairo"""

    def __init__(self):
        # Build GUI
        self.builder = Gtk.Builder()
        self.glade_file = join(WHERE_AM_I, 'test.glade')
        self.builder.add_from_file(self.glade_file)

        # Get objects
        go = self.builder.get_object
        self.window = go('window')

        # Create buffer
        self.double_buffer = None

        # Connect signals
        self.builder.connect_signals(self)

        # Everything is ready
        self.window.show()

    def draw_something(self):
        """Draw something into the buffer"""
        db = self.double_buffer
        if db is not None:
            # Create cairo context with double buffer as is DESTINATION
            cc = cairo.Context(db)

            # Scale to device coordenates
            cc.scale(db.get_width(), db.get_height())

            # Draw a white background
            cc.set_source_rgb(1, 1, 1)

            # Draw something, in this case a matrix
            rows = 10
            columns = 10
            cell_size = 1.0 / rows
            line_width = 1.0
            line_width, notused = cc.device_to_user(line_width, 0.0)

            for i in range(rows):
                for j in range(columns):
                    cc.rectangle(j * cell_size, i * cell_size, cell_size, cell_size)
                    cc.set_line_width(line_width)
                    cc.set_source_rgb(0, 0, 0)
                    cc.stroke()

            # Flush drawing actions
            db.flush()

        else:
            print('Invalid double buffer')

    def main_quit(self, widget):
        """Quit Gtk"""
        Gtk.main_quit()

    def on_draw(self, widget, cr):
        """Throw double buffer into widget drawable"""

        if self.double_buffer is not None:
            cr.set_source_surface(self.double_buffer, 0.0, 0.0)
            cr.paint()
        else:
            print('Invalid double buffer')

        return False

    def on_configure(self, widget, event, data=None):
        """Configure the double buffer based on size of the widget"""

        # Destroy previous buffer
        if self.double_buffer is not None:
            self.double_buffer.finish()
            self.double_buffer = None

        # Create a new buffer
        self.double_buffer = cairo.ImageSurface(\
                cairo.FORMAT_ARGB32,
                widget.get_allocated_width(),
                widget.get_allocated_height()
            )

        # Initialize the buffer
        self.draw_something()

        return False

if __name__ == '__main__':
    gui = MyApp()
    Gtk.main()

Glade文件（ test.glade ）：

<?xml version="1.0" encoding="UTF-8"?>
<interface>
  <!-- interface-requires gtk+ 3.0 -->
  <object class="GtkWindow" id="window">
    <property name="can_focus">False</property>
    <property name="window_position">center-always</property>
    <property name="default_width">800</property>
    <property name="default_height">600</property>
    <signal name="destroy" handler="main_quit" swapped="no"/>
    <child>
      <object class="GtkDrawingArea" id="drawingarea1">
        <property name="visible">True</property>
        <property name="can_focus">False</property>
        <signal name="draw" handler="on_draw" swapped="no"/>
        <signal name="configure-event" handler="on_configure" swapped="no"/>
      </object>
    </child>
  </object>
</interface>

依存关系：

Python 2：

sudo apt-get install python-cairo

Python 3：

sudo apt-get install python3-gi-cairo

现在执行：

python test.py

要么

python3 test.py

看起来像什么：

可以在http://cairographics.org/documentation/pycairo/3/reference/index.html中找到有关cairo的所有文档。

亲切的问候