/
toolbar.py
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/
toolbar.py
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# -*- coding: utf-8 -*-
"""
Created on Sun Jan 10 08:19:21 2021
@author: Ronald Kemker
"""
from tkinter import Frame, Label, Button, StringVar, OptionMenu
from PIL import ImageTk, Image, ImageOps
from navigator import Navigator
class Toolbar(object):
def __init__(self, root_app):
'''
Toolbar Class
Parameters
----------
root_app : AnnotationTool object
Pass Parent Object to access global variables
Attributes
----------
root_app : AnnotationTool object
Parent Object
toolbar_width : int
Width of the Toolbar
toolbar_height : int
Height of the Toolbar
toolbar_frame : tkinter Frame object
Fram that contains the entire Toolbar object
Raises
------
None
Returns
-------
None
'''
self.root_app = root_app
self.toolbar_width = self.root_app.window_width
self.toolbar_height = self.root_app.toolbar_height
# Tool Bar Frame
self.toolbar_frame = Frame(self.root_app.background,
bg='gray',
width=self.toolbar_width,
height=self.toolbar_height)
self.toolbar_frame.place(x=0,
y=0,
height = self.toolbar_height,
width = self.toolbar_width)
# Draw Tools
if len(self.root_app.annotations):
self._draw_image_navigator()
self._delete_from_project_button()
if len(self.root_app.class_list) > 0:
self._draw_class_selection_menu()
def _draw_image_navigator(self):
'''
Draws the image navigator inside the Toolbar Frame
Parameters
----------
None
Attributes
----------
None
Raises
------
None
Returns
-------
None
'''
button_size = 40
nav_frame = Frame(self.toolbar_frame,
width = self.root_app.navigator_width,
height = self.toolbar_height)
nav_frame.place(x=self.root_app.canvas_width-20,
y=0,
width = self.root_app.navigator_width,
height = self.toolbar_height
)
nav_text_label = Label(nav_frame,
font='Helvetica 12 bold',
justify='center',
text="Page %d/%d" % (self.root_app.page+1,
self.root_app.num_pages+1))
nav_text_label.place(x=0, y=5,
width=self.root_app.navigator_width,
height=button_size)
# Only load images when not testing
if self.root_app.window.winfo_ismapped():
left_arrow = Image.open('img/left_arrow.png')
right_arrow = ImageOps.mirror(left_arrow)
left_photo = ImageTk.PhotoImage(left_arrow.resize((button_size,
button_size),
Image.ANTIALIAS))
right_photo = ImageTk.PhotoImage(right_arrow.resize((button_size,
button_size),
Image.ANTIALIAS))
else:
left_photo = None
right_photo = None
right_button = Button(nav_frame, image=right_photo,
bg='black', command=self.next_page)
right_button.image = right_photo
right_button.place(x=150,
y=5,
width=button_size,
height=button_size)
left_button = Button(nav_frame, image=left_photo,
bg='black', command=self.previous_page)
left_button.image = left_photo
left_button.place(x=10,
y=5,
width=button_size,
height=button_size)
def next_page(self):
self.root_app.page = min(self.root_app.page + 1, self.root_app.num_pages)
self.root_app._draw_workspace()
def previous_page(self):
self.root_app.page = max(self.root_app.page - 1, 0)
self.root_app._draw_workspace()
def _next_image(self):
'''
Moves to the next image in the project
Parameters
----------
None
Attributes
----------
None
Raises
------
None
Returns
-------
None
'''
self.root_app.current_file = min(self.root_app.current_file + 1,
len(self.root_app.file_list)-1)
self.root_app._load_image_from_file()
self.root_app._draw_workspace()
def _previous_image(self):
'''
Moves to the previous image in the project
Parameters
----------
None
Attributes
----------
None
Raises
------
None
Returns
-------
None
'''
self.root_app.current_file = max(self.root_app.current_file - 1, 0)
self.root_app._load_image_from_file()
self.root_app._draw_workspace()
def _delete_from_project_button(self):
'''
Draw the Remove Image from Project Button
Parameters
----------
None
Attributes
----------
None
Raises
------
None
Returns
-------
None
'''
button_size = 40
if self.root_app.window.winfo_ismapped():
img = Image.open('img/delete.png')
photo = ImageTk.PhotoImage(img.resize((button_size-1,
button_size-1),
Image.ANTIALIAS))
else:
photo = None
button = Button(self.toolbar_frame,
image = photo,
command=self._delete_from_project,
width = button_size,
height = button_size)
button.image = photo
button.place(x=10,
y=5,
width=button_size,
height=button_size)
def _delete_from_project(self):
'''
command action tied to the "Remove from Project" button
Parameters
----------
None
Attributes
----------
None
Raises
------
None
Returns
-------
None
'''
for idx in self.root_app.annotations[self.root_app.current_file].label:
self.root_app.class_count[idx] = self.root_app.class_count[idx] - 1
self.root_app.annotations.pop(self.root_app.current_file)
self.root_app.file_list.pop(self.root_app.current_file)
if self.root_app.current_file == len(self.root_app.file_list):
self.root_app.current_file = self.root_app.current_file - 1
self.root_app._load_image_from_file()
self.root_app._draw_workspace()
def _draw_class_selection_menu(self):
'''
Draw the drop down menu that is used to select which class is being
currently annotated
Parameters
----------
None
Attributes
----------
selected_class : tkinter StringVar object
This is the variable assigned to the object class selection drop
down menu
Raises
------
None
Returns
-------
None
'''
self.root_app.selected_class = StringVar(self.toolbar_frame)
self.root_app.selected_class.set(self.root_app.class_list[0])
option_menu = OptionMenu(self.toolbar_frame, self.root_app.selected_class,
*self.root_app.class_list)
option_menu.place(x=60,
y=5,
width = 100,
height = 40)