.. note::
    :class: sphx-glr-download-link-note

    Click :ref:`here <sphx_glr_download_gallery_user_interfaces_gtk_spreadsheet_sgskip.py>` to download the full example code
.. rst-class:: sphx-glr-example-title

.. _sphx_glr_gallery_user_interfaces_gtk_spreadsheet_sgskip.py:


===============
GTK Spreadsheet
===============

Example of embedding Matplotlib in an application and interacting with a
treeview to store data.  Double click on an entry to update plot data.


.. code-block:: default


    import gi
    gi.require_version('Gtk', '3.0')
    gi.require_version('Gdk', '3.0')
    from gi.repository import Gtk, Gdk

    from matplotlib.backends.backend_gtk3agg import FigureCanvas  # or gtk3cairo.

    from numpy.random import random
    from matplotlib.figure import Figure


    class DataManager(Gtk.Window):
        num_rows, num_cols = 20, 10

        data = random((num_rows, num_cols))

        def __init__(self):
            super().__init__()
            self.set_default_size(600, 600)
            self.connect('destroy', lambda win: Gtk.main_quit())

            self.set_title('GtkListStore demo')
            self.set_border_width(8)

            vbox = Gtk.VBox(homogeneous=False, spacing=8)
            self.add(vbox)

            label = Gtk.Label(label='Double click a row to plot the data')

            vbox.pack_start(label, False, False, 0)

            sw = Gtk.ScrolledWindow()
            sw.set_shadow_type(Gtk.ShadowType.ETCHED_IN)
            sw.set_policy(Gtk.PolicyType.NEVER, Gtk.PolicyType.AUTOMATIC)
            vbox.pack_start(sw, True, True, 0)

            model = self.create_model()

            self.treeview = Gtk.TreeView(model=model)

            # Matplotlib stuff
            fig = Figure(figsize=(6, 4))

            self.canvas = FigureCanvas(fig)  # a Gtk.DrawingArea
            vbox.pack_start(self.canvas, True, True, 0)
            ax = fig.add_subplot(111)
            self.line, = ax.plot(self.data[0, :], 'go')  # plot the first row

            self.treeview.connect('row-activated', self.plot_row)
            sw.add(self.treeview)

            self.add_columns()

            self.add_events(Gdk.EventMask.BUTTON_PRESS_MASK |
                            Gdk.EventMask.KEY_PRESS_MASK |
                            Gdk.EventMask.KEY_RELEASE_MASK)

        def plot_row(self, treeview, path, view_column):
            ind, = path  # get the index into data
            points = self.data[ind, :]
            self.line.set_ydata(points)
            self.canvas.draw()

        def add_columns(self):
            for i in range(self.num_cols):
                column = Gtk.TreeViewColumn(str(i), Gtk.CellRendererText(), text=i)
                self.treeview.append_column(column)

        def create_model(self):
            types = [float] * self.num_cols
            store = Gtk.ListStore(*types)
            for row in self.data:
                store.append(tuple(row))
            return store


    manager = DataManager()
    manager.show_all()
    Gtk.main()


.. _sphx_glr_download_gallery_user_interfaces_gtk_spreadsheet_sgskip.py:


.. only :: html

 .. container:: sphx-glr-footer
    :class: sphx-glr-footer-example



  .. container:: sphx-glr-download

     :download:`Download Python source code: gtk_spreadsheet_sgskip.py <gtk_spreadsheet_sgskip.py>`



  .. container:: sphx-glr-download

     :download:`Download Jupyter notebook: gtk_spreadsheet_sgskip.ipynb <gtk_spreadsheet_sgskip.ipynb>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    Keywords: matplotlib code example, codex, python plot, pyplot
    `Gallery generated by Sphinx-Gallery
    <https://sphinx-gallery.readthedocs.io>`_