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

.. only:: html

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

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

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

.. _sphx_glr__gallery_guis_imgui_menu_bar.py:


ImGUI menu bar
==============

You can override ``ImguiWindow.draw()`` to create a window with a menu bar. You can override the `draw()` call when
you need full control of the imgui window.

.. GENERATED FROM PYTHON SOURCE LINES 8-138



.. image-sg:: /_gallery/guis/images/sphx_glr_imgui_menu_bar_001.webp
   :alt: imgui menu bar
   :srcset: /_gallery/guis/images/sphx_glr_imgui_menu_bar_001.webp
   :class: sphx-glr-single-img





.. code-block:: Python


    # test_example = false

    import imageio.v3 as iio
    import fastplotlib as fpl
    from fastplotlib.ui import ImguiWindow
    from imgui_bundle import imgui

    # the imageio standard images
    IMAGES = [
        "camera.png",
        "astronaut.png",
        "checkerboard.png",
        "chelsea.png",
        "clock.png",
        "coffee.png",
        "coins.png",
        "horse.png",
        "hubble_deep_field.png",
        "immunohistochemistry.png",
        "moon.png",
        "page.png",
        "text.png",
        "wikkie.png",
        "bricks.jpg",
        "wood.jpg",
    ]

    figure = fpl.Figure(size=(700, 560))
    image = figure[0, 0].add_image(iio.imread(f"imageio:{IMAGES[0]}"), name="image")


    class ImagePicker(ImguiWindow):
        """floating window that replaces the image in the subplot with the one that is picked"""

        def __init__(self):
            super().__init__()

            self.visible = False
            self.picked = IMAGES[0]

        def draw(self):
            if not self.visible:
                return

            # a height of zero makes imgui auto-size the window to fit the list
            imgui.set_next_window_size((220, 0), imgui.Cond_.appearing)
            expanded, self.visible = imgui.begin("Open image", True)

            if expanded:
                for name in IMAGES:
                    if imgui.selectable(name, name == self.picked)[0]:
                        self.picked = name
                        image.data = iio.imread(f"imageio:{name}")
                        figure[0, 0].auto_scale()
                        self.visible = False

            imgui.end()


    class MenuBar(ImguiWindow):
        """menu bar at the top of the Figure, ``update()`` is unused since ``draw()`` is fully overridden"""

        def __init__(self, picker: ImagePicker):
            super().__init__()

            self._picker = picker
            self._show_version = False

        def draw(self):
            imgui.set_next_window_size((self.width, self.height))
            imgui.set_next_window_pos((self.x, self.y))

            imgui.begin(
                f"menu-bar##{self._id_counter}",
                p_open=None,
                flags=imgui.WindowFlags_.no_collapse
                | imgui.WindowFlags_.no_resize
                | imgui.WindowFlags_.no_title_bar
                | imgui.WindowFlags_.no_scrollbar
                | imgui.WindowFlags_.no_bring_to_front_on_focus
                | imgui.WindowFlags_.menu_bar,
            )

            if imgui.begin_menu_bar():
                if imgui.begin_menu("File"):
                    if imgui.menu_item("Open", "", False)[0]:
                        self._picker.visible = True

                    imgui.end_menu()

                if imgui.begin_menu("Help"):
                    if imgui.menu_item("Version", "", False)[0]:
                        self._show_version = True

                    imgui.end_menu()

                imgui.end_menu_bar()

            # the popup is opened here and not within the menu, imgui requires that open_popup() and
            # begin_popup_modal() are called for the same window
            if self._show_version:
                self._show_version = False
                imgui.open_popup("Version")

            # center the modal on the canvas
            imgui.set_next_window_pos(
                imgui.get_main_viewport().get_center(), imgui.Cond_.appearing, (0.5, 0.5)
            )

            # p_open draws a close button in the title bar, imgui closes the modal when it is clicked
            if imgui.begin_popup_modal("Version", True, imgui.WindowFlags_.always_auto_resize)[0]:
                imgui.text(f"fastplotlib version: {fpl.__version__}")
                imgui.end_popup()

            imgui.end()


    picker = ImagePicker()
    figure.add_imgui_window(picker, location="floating")
    figure.add_imgui_window(MenuBar(picker), location="top", size=30)

    figure.show()


    # NOTE: fpl.loop.run() should not be used for interactive sessions
    # See the "JupyterLab and IPython" section in the user guide
    if __name__ == "__main__":
        print(__doc__)
        fpl.loop.run()


.. rst-class:: sphx-glr-timing

   **Total running time of the script:** (0 minutes 0.354 seconds)


.. _sphx_glr_download__gallery_guis_imgui_menu_bar.py:

.. only:: html

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

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

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

    .. container:: sphx-glr-download sphx-glr-download-zip

      :download:`Download zipped: imgui_menu_bar.zip <imgui_menu_bar.zip>`


.. only:: html

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

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