class MechanicalTurkApp(App):
def __init__(self, image_tags, data_links, saved_tags_file):
self.image_tags = image_tags
self.data_links = data_links
self.img_idx = 0
with open(saved_tags_file, 'r+') as saved_tags:
self.saved_tags = saved_tags
def build(self):
# First popout frame asking user to identify themselves
user_id_frame = GridLayout()
main_frame = BoxLayout()
self.image_frame = BoxLayout()
possible_labels_frame = GridLayout()
#chosen_labels_frame = BoxLayout()
submission_frame = GridLayout()
# Define buttons for submission frame
submit_button = Button(text="SUBMIT MFER")
submit_button.bind(on_press=self.load_next_image)
goback_button = Button(text="PREVIOUS IMAGE")
pack_tag_buttons = []
for tag in self.image_tags:
label = TagLabels(text=tag)
label.bind(lambda chosen_tag: self.tag_image(chosen_tag), tag)
possible_labels_frame.add_widget(label)
pack_tags.append(label)
def load_next_image(self):
'''
Activated when user presses submit button.
Cycles to next image in dataset
'''
# TODO: tie button states to the completion of this
# function so that pressed buttons are reset
# to their unpressed state
# clear previous image from image frame
self.image_frame.config(image='')
self.img_idx += 1
# load in new image from data server
self.curr_img = AsyncImage(source=self.data_links[self.img_idx])
# apply loaded image to image frame
self.image_frame.add_widget(self.curr_img)
def load_previous_image(self):
'''
Activated when user presses go back burron.
Goes back to previous image and allows user
to change labels they assigned to it
'''
# TODO: tie button states to the completion of this
# function so that pressed buttons are reset
# to their unpressed state
# clear current image from frame
self.image_frame.config(image='')
self.img_idx -= 1
# load in previous image from data server
prev_img = AsyncImage(source=self.data_links[self.img_idx])
# apply loaded img to image frame
self.image_frame.add_widget(prev_img)
return
def tag_image(self, tag):
pass
