Python-efl Displaying Images


python-efl

Python-EFL is a wrapper around the Enlightenment GUI kit. This series of tutorials is an update from the original author.

'''
Abdur-Ramaan Janhangeer
Updated from Jeff Hoogland's tutos
for Python3.9 and Python-elf 1.25.0

https://www.toolbox.com/tech/operating-systems/blogs/py-efl-tutorial-4-displaying-images-042415/

Needs one image called image.png
'''

import efl.elementary as elm
from efl.elementary.image import Image
from efl.elementary.label import Label
from efl.elementary.window import StandardWindow
from efl.evas import EVAS_HINT_EXPAND

EXPAND_BOTH = EVAS_HINT_EXPAND, EVAS_HINT_EXPAND


class MainWindow(StandardWindow):
    def __init__(self):
        StandardWindow.__init__(self, "ex1", "Hello Elementary", size=(300, 200))
        self.callback_delete_request_add(lambda o: elm.exit())
        our_image = Image(self)
        our_image.size_hint_weight = EXPAND_BOTH
        our_image.file_set("image.png")
        our_image.tooltip_text_set("A picture!")
        our_image.show()
        self.resize_object_add(our_image)


if __name__ == "__main__":
    elm.init()
    gui = MainWindow()
    gui.show()
    elm.run()


Select image

import os
import efl.elementary as elm
from efl.elementary.window import StandardWindow
from efl.elementary.image import Image
from efl.elementary.box import Box
from efl.elementary.fileselector_button import FileselectorButton
from efl.evas import EVAS_HINT_EXPAND, EVAS_HINT_FILL

EXPAND_BOTH = EVAS_HINT_EXPAND, EVAS_HINT_EXPAND
EXPAND_HORIZ = EVAS_HINT_EXPAND, 0.0
FILL_BOTH = EVAS_HINT_FILL, EVAS_HINT_FILL


class MainWindow(StandardWindow):
    def __init__(self):
        StandardWindow.__init__(self, "ex6", "Selected Image", size=(300, 200))
        self.callback_delete_request_add(lambda o: elm.exit())
        self.our_image = our_image = Image(self)
        our_image.size_hint_weight = EXPAND_BOTH
        our_image.size_hint_align = FILL_BOTH
        our_image.file_set("image.png")
        our_image.tooltip_text_set("A picture!")
        our_image.show()

        our_button = FileselectorButton(self)
        our_button.size_hint_weight = EXPAND_HORIZ
        our_button.text = "Select new Image"
        our_button.callback_file_chosen_add(self.file_selected)
        our_button.show()

        our_box = Box(self)
        our_box.size_hint_weight = EXPAND_BOTH
        our_box.pack_end(our_image)
        our_box.pack_end(our_button)
        our_box.show()
        self.resize_object_add(our_box)

    def file_selected(self, fsb, selected_file):
        if selected_file:
            valid_extensions = [".png", ".jpg", ".gif"]
            file_name, file_extension = os.path.splitext(selected_file)
            if file_extension in valid_extensions:
                self.our_image.file_set(selected_file)


if __name__ == "__main__":
    elm.init()
    gui = MainWindow()
    gui.show()
    elm.run()

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