.. _user_interfaces-pylab_with_gtk:

user_interfaces example code: pylab_with_gtk.py
===============================================

[`source code <pylab_with_gtk.py>`_]

::

    """
    An example of how to use pylab to manage your figure windows, but
    modify the GUI by accessing the underlying gtk widgets
    """
    from __future__ import print_function
    import matplotlib
    matplotlib.use('GTKAgg')
    import matplotlib.pyplot as plt
    
    
    fig, ax = plt.subplots()
    plt.plot([1,2,3], 'ro-', label='easy as 1 2 3')
    plt.plot([1,4,9], 'gs--', label='easy as 1 2 3 squared')
    plt.legend()
    
    
    manager = plt.get_current_fig_manager()
    # you can also access the window or vbox attributes this way
    toolbar = manager.toolbar
    
    # now let's add a button to the toolbar
    import gtk
    next = 8; #where to insert this in the mpl toolbar
    button = gtk.Button('Click me')
    button.show()
    
    def clicked(button):
        print('hi mom')
    button.connect('clicked', clicked)
    
    toolitem = gtk.ToolItem()
    toolitem.show()
    toolitem.set_tooltip(
        toolbar.tooltips,
        'Click me for fun and profit')
    
    toolitem.add(button)
    toolbar.insert(toolitem, next); next +=1
    
    # now let's add a widget to the vbox
    label = gtk.Label()
    label.set_markup('Drag mouse over axes for position')
    label.show()
    vbox = manager.vbox
    vbox.pack_start(label, False, False)
    vbox.reorder_child(manager.toolbar, -1)
    
    def update(event):
        if event.xdata is None:
            label.set_markup('Drag mouse over axes for position')
        else:
            label.set_markup('<span color="#ef0000">x,y=(%f, %f)</span>'%(event.xdata, event.ydata))
    
    plt.connect('motion_notify_event', update)
    
    plt.show()
    

Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)