Files
SplitNotes/main_window.py
T
joelnir 945a6b760a bugfixes
fixed bugs that displayed wrong notes and redid some of the socket
handling to deal with continous server connection losses
2016-01-03 00:51:58 +01:00

378 lines
9.6 KiB
Python

import tkinter
from tkinter import messagebox
import socket
import os
import config
import ls_connection as con
import note_reader as noter
runtime_info = {
"ls_connected": False,
"timer_running": False,
"icon_active": False,
"active_split": -1,
"notes": [],
"double_layout": False
}
root = tkinter.Tk()
red_path= os.path.join(
str(os.path.dirname(os.path.realpath(__file__))),
config.ICON_FOLDER,
config.ICONS["RED"]
)
green_path= os.path.join(
str(os.path.dirname(os.path.realpath(__file__))),
config.ICON_FOLDER,
config.ICONS["GREEN"]
)
red_icon = tkinter.Image("photo", file=red_path)
green_icon = tkinter.Image("photo", file=green_path)
def update(window, com_socket, text1, text2):
"""
Function to loop along tkinter mainloop.
"""
if not runtime_info["ls_connected"]:
#try connecting to ls
con.ls_connect(com_socket, server_found, window)
else:
#is_connected
if runtime_info["notes"]:
#notes loaded
#get index of current split
new_index = con.get_split_index(com_socket)
if isinstance(new_index, bool):
#Connection error
com_socket = test_connection(com_socket, window, text1, text2)
else:
#index retrieved succesfully
if new_index == -1:
#timer not running
if runtime_info["timer_running"]:
runtime_info["timer_running"] = False
runtime_info["active_split"] = new_index
update_notes(window, text1, text2, new_index)
set_title_notes(window, 0)
else:
#timer is running
if not runtime_info["timer_running"]:
runtime_info["timer_running"] = True
#special case to fix scrolling
if runtime_info["active_split"] == 0:
runtime_info["active_split"] = -1
if not runtime_info["active_split"] == new_index:
#new split, need to update
#update notes
update_notes(window, text1, text2, new_index)
#set new window title
new_split = con.get_split_name(com_socket)
if new_split:
set_title_notes(window, new_index, new_split)
else:
#connection error
set_title_notes(window, new_index)
com_socket = test_connection(com_socket, window, text1, text2)
runtime_info["active_split"] = new_index
else:
#notes not yet loaded
com_socket = test_connection(com_socket, window, text1, text2)
#self looping
window.after(int(config.POLLING_TIME * 1000), update, window, com_socket, text1, text2)
def test_connection(com_socket, window, text1, text2):
if con.check_connection(com_socket):
return com_socket
else:
return reset_connection(com_socket, window, text1, text2)
def reset_connection(com_socket, window, text1, text2):
if runtime_info["timer_running"]:
runtime_info["timer_running"] = False
runtime_info["active_split"] = -1
update_notes(window, text1, text2, -1)
set_title_notes(window, 0)
runtime_info["ls_connected"] = False
update_icon(False, window)
return con.init_socket()
def server_found(window):
"""
Executes correct settings for when
ls connection has been established.
"""
runtime_info["ls_connected"] = True
update_icon(True, window)
def update_icon(active, window):
"""Updates icon of window depending on "active" variable"""
if active and not runtime_info["icon_active"]:
window.tk.call('wm', 'iconphoto', window._w, green_icon)
runtime_info["icon_active"] = True
elif runtime_info["icon_active"]:
window.tk.call('wm', 'iconphoto', window._w, red_icon)
runtime_info["icon_active"] = False
def update_title(name, window):
"""Sets the title of given window to name."""
window.wm_title(name)
def adjust_content(window, box1, box2):
"""
Adjusts size of box1 and box2 according to
layout and size of window.
"""
if runtime_info["double_layout"]:
set_double_layout(window, box1, box2)
else:
set_single_layout(window, box1, box2)
def set_double_layout(window, box1, box2):
"""
Configures boxes in the window to fit as in double layout.
"""
runtime_info["double_layout"] = True
w_width = window.winfo_width()
w_height = window.winfo_height()
box1.place(height=(w_height // 2), width=w_width)
box2.place(height=(w_height // 2), width=w_width, y=(w_height // 2))
def set_single_layout(window, box1, box2):
"""
Configures boxes in the window to fit as in single layout.
"""
runtime_info["double_layout"] = False
box2.place_forget()
box1.place(height=window.winfo_height(), width=window.winfo_width())
def show_popup(event, menu):
"""Displays given popup menu at cursor position."""
menu.post(event.x_root, event.y_root)
def menu_change_layout(window, box1, box2, popup):
"""Menu option for changing layout selected."""
if runtime_info["double_layout"]:
set_single_layout(window, box1, box2)
popup.entryconfig(0, label=config.MENU_OPTIONS["DOUBLE"])
else:
set_double_layout(window, box1, box2)
popup.entryconfig(0, label=config.MENU_OPTIONS["SINGLE"])
def menu_load_notes(window, text1, text2):
"""Menu selected load notes option."""
load_notes(window, text1, text2)
def load_notes(window, text1, text2):
"""
Prompts user to select notes and then tries to load these into the UI.
"""
file = noter.select_file()
if file:
notes = noter.get_notes(file)
if notes:
#Notes loaded correctly
runtime_info["notes"] = notes
split_c = len(notes)
show_info(("Notes Loaded", ("Loaded notes with " + str(split_c) + " splits.")))
update_notes(window, text1, text2, runtime_info["active_split"])
set_title_notes(window, 0, split_name = False)
else:
show_info(config.ERRORS["NOTES_EMPTY"], True)
def show_info(info, warning = False):
"""
Displays an infor popup window.
if warning is True window has a warning triangle.
"""
if warning:
messagebox.showwarning(info[0], info[1])
else:
messagebox.showinfo(info[0], info[1])
def update_notes(window, text1, text2, index):
"""
Displays notes with the given index in given text widgets.
If index is lower than 0, displays notes for index 0.
If index is higher than the highest index there are
notes for the text widgets are left empty.
text2 is always given the notes at index (index + 1) if existing
"""
max_index = (len(runtime_info["notes"]) - 1)
if index < 0:
index = 0
text1.config(state=tkinter.NORMAL)
text2.config(state=tkinter.NORMAL)
text1.delete("1.0", tkinter.END)
text2.delete("1.0", tkinter.END)
if index <= max_index:
text1.insert(tkinter.END, runtime_info["notes"][index])
#cand disply notes for index+1
if index < max_index:
text2.insert(tkinter.END, runtime_info["notes"][index + 1])
text1.config(state=tkinter.DISABLED)
text2.config(state=tkinter.DISABLED)
def right_arrow(window, text1, text2):
"""Event handler for right arrow key."""
change_preview(window, text1, text2, 1)
def left_arrow(window, text1, text2):
"""Event handler for left arrow key."""
change_preview(window, text1, text2, -1)
def change_preview(window, text1, text2, move):
"""move is either 1 for next or -1 for previous."""
if runtime_info["notes"] and (not runtime_info["timer_running"]):
max_index = (len(runtime_info["notes"]) - 1)
index = runtime_info["active_split"]
if index < 0:
index = 0
index += move
if index > max_index:
index = max_index
update_notes(window, text1, text2, index)
runtime_info["active_split"] = index
if index < 0:
index = 0
set_title_notes(window, index)
def set_title_notes(window, index, split_name = False):
"""
Set window title to fit with displayed notes.
"""
title = config.DEFAULT_WINDOW["TITLE"]
disp_index = str(index + 1) #start at 1
title += " - " + disp_index
if split_name:
title += " - " + split_name
if runtime_info["timer_running"]:
title += " - " + config.RUNNING_ALERT
update_title(title, window)
def init_UI(root):
"""Draws default UI and creates event bindings."""
#Graphical components
root.geometry(str(config.DEFAULT_WINDOW["WIDTH"]) + "x" + str(config.DEFAULT_WINDOW["HEIGHT"]))
box1 = tkinter.Frame(root)
box2 = tkinter.Frame(root)
scroll1 = tkinter.Scrollbar(box1)
scroll1.pack(side=tkinter.RIGHT, fill=tkinter.Y)
scroll2 = tkinter.Scrollbar(box2)
scroll2.pack(side=tkinter.RIGHT, fill=tkinter.Y)
text1 = tkinter.Text(
box1,
yscrollcommand=scroll1.set,
wrap=tkinter.WORD
)
text1.insert(tkinter.END, config.DEFAULT_MSG)
text1.config(state=tkinter.DISABLED)
text1.pack(fill=tkinter.BOTH, expand=True)
text2 = tkinter.Text(
box2,
yscrollcommand=scroll2.set,
wrap=tkinter.WORD
)
text2.insert(tkinter.END, config.DEFAULT_MSG)
text2.config(state=tkinter.DISABLED)
text2.pack(fill=tkinter.BOTH, expand=True)
scroll1.config(command=text1.yview)
scroll2.config(command=text2.yview)
set_single_layout(root, box1, box2)
#create popup menu
popup = tkinter.Menu(root, tearoff=0)
popup.add_command(
label=config.MENU_OPTIONS["DOUBLE"],
command=(
lambda: menu_change_layout(root, box1, box2, popup)
)
) #Needs to be at index 0
popup.add_command(
label=config.MENU_OPTIONS["LOAD"],
command=(lambda: menu_load_notes(root, text1, text2))
)
#Set default window icon and title
root.tk.call('wm', 'iconphoto', root._w, red_icon)
update_title(config.DEFAULT_WINDOW["TITLE"], root)
#Event binds
root.bind("<Configure>", (lambda e: adjust_content(root, box1, box2)))
root.bind("<Button-3>", (lambda e: show_popup(e, popup)))
root.bind("<Right>", (lambda e: right_arrow(root, text1, text2)))
root.bind("<Left>", (lambda e: left_arrow(root, text1, text2)))
#call update loop
com_socket = con.init_socket()
update(root, com_socket, text1, text2)
init_UI(root)
root.mainloop()