.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "gallery/user_interfaces/embedding_in_tk_sgskip.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. meta::
        :keywords: codex

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

        :ref:`Go to the end <sphx_glr_download_gallery_user_interfaces_embedding_in_tk_sgskip.py>`
        to download the full example code

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_gallery_user_interfaces_embedding_in_tk_sgskip.py:


===============
Embedding in Tk
===============

.. GENERATED FROM PYTHON SOURCE LINES 7-67

.. code-block:: Python


    import tkinter

    import numpy as np

    # Implement the default Matplotlib key bindings.
    from matplotlib.backend_bases import key_press_handler
    from matplotlib.backends.backend_tkagg import (FigureCanvasTkAgg,
                                                   NavigationToolbar2Tk)
    from matplotlib.figure import Figure

    root = tkinter.Tk()
    root.wm_title("Embedding in Tk")

    fig = Figure(figsize=(5, 4), dpi=100)
    t = np.arange(0, 3, .01)
    ax = fig.add_subplot()
    line, = ax.plot(t, 2 * np.sin(2 * np.pi * t))
    ax.set_xlabel("time [s]")
    ax.set_ylabel("f(t)")

    canvas = FigureCanvasTkAgg(fig, master=root)  # A tk.DrawingArea.
    canvas.draw()

    # pack_toolbar=False will make it easier to use a layout manager later on.
    toolbar = NavigationToolbar2Tk(canvas, root, pack_toolbar=False)
    toolbar.update()

    canvas.mpl_connect(
        "key_press_event", lambda event: print(f"you pressed {event.key}"))
    canvas.mpl_connect("key_press_event", key_press_handler)

    button_quit = tkinter.Button(master=root, text="Quit", command=root.destroy)


    def update_frequency(new_val):
        # retrieve frequency
        f = float(new_val)

        # update data
        y = 2 * np.sin(2 * np.pi * f * t)
        line.set_data(t, y)

        # required to update canvas and attached toolbar!
        canvas.draw()


    slider_update = tkinter.Scale(root, from_=1, to=5, orient=tkinter.HORIZONTAL,
                                  command=update_frequency, label="Frequency [Hz]")

    # Packing order is important. Widgets are processed sequentially and if there
    # is no space left, because the window is too small, they are not displayed.
    # The canvas is rather flexible in its size, so we pack it last which makes
    # sure the UI controls are displayed as long as possible.
    button_quit.pack(side=tkinter.BOTTOM)
    slider_update.pack(side=tkinter.BOTTOM)
    toolbar.pack(side=tkinter.BOTTOM, fill=tkinter.X)
    canvas.get_tk_widget().pack(side=tkinter.TOP, fill=tkinter.BOTH, expand=True)

    tkinter.mainloop()


.. _sphx_glr_download_gallery_user_interfaces_embedding_in_tk_sgskip.py:

.. only:: html

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

    .. container:: sphx-glr-download sphx-glr-download-jupyter

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

    .. container:: sphx-glr-download sphx-glr-download-python

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


.. only:: html

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

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_