diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | combox/gui.py | 283 |
2 files changed, 288 insertions, 0 deletions
@@ -1,3 +1,8 @@ +2015-11-30 Siddharth Ravikumar <sravik@bgsu.edu> + + * added combox/gui.py: contains ComboxConfigDialog, a graphical + interface for configuring combox; it rough as zark. + 2015-11-19 Siddharth Ravikumar <sravik@bgsu.edu> * combox/events.py: ComboxDirMonitor now uses Lock; now this Lock diff --git a/combox/gui.py b/combox/gui.py new file mode 100644 index 0000000..0e4a691 --- /dev/null +++ b/combox/gui.py @@ -0,0 +1,283 @@ + +# Copyright (C) 2015 Combox author(s). See AUTHORS. +# +# This file is part of Combox. +# +# Combox is free software: you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# Combox is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with Combox (see COPYING). If not, see +# <http://www.gnu.org/licenses/>. + +import os + +import tkFileDialog + +from Tkinter import * + +# +# Adapted from: +# http://effbot.org/tkinterbook/tkinter-dialog-windows.htm + +class ComboxConfigDialog(object): + """combox configuration dialog for folks that prefer GUI. + + """ + + def __init__(self, title=None): + self.root = Tk() + + if title: + self.root.title(title) + + self.result = None + + self.body_frame = Frame(self.root) + self.initial_focus = self.body(self.body_frame) + self.body_frame.pack(padx=5, pady=5, fill=BOTH) + + self.buttonbox() + + # init. lists to store fields related to "node information". + self.node_path_labels = [] + self.node_size_labels = [] + self.node_path_entries = [] + self.node_size_entries = [] + + self.root.grab_set() + + if not self.initial_focus: + self.initial_focus = self.root + + self.root.protocol("WM_DELETE_WINDOW", self.cancel) + + self.center_it() + + self.initial_focus.focus_set() + + self.root.wait_window(self.root) + + + # + # construction hooks + + # Adapted from: + # https://bbs.archlinux.org/viewtopic.php?id=149559 + def center_it(self): + """ + Center combox config dialog. + """ + self.root.withdraw() + self.root.update_idletasks() + + x = (self.root.winfo_screenwidth() - self.root.winfo_reqwidth()) / 2 + y = (self.root.winfo_screenheight() - self.root.winfo_reqheight()) / 2 + + self.root.geometry("+%d+%d" % (x, y)) + self.root.deiconify() + + + def body(self, master): + """ + Populates the main body of the dialog. + """ + Label(master, text="name of this combox").grid(row=0, sticky=W) + Label(master, text="path to combox directory").grid(row=1, sticky=W) + Label(master, text="passphrase").grid(row=2, sticky=W) + Label(master, text="no. of nodes").grid(row=3, sticky=W) + + self.cb_name_entry = Entry(master, width=40) + self.cb_dir_entry = Entry(master, width=40) + self.cb_pp_entry = Entry(master, width=40, show='*') + self.cb_no_nodes_entry = Entry(master, width=40) + + self.cb_name_entry.grid(row=0, column=1) + self.cb_dir_entry.grid(row=1, column=1, padx=5) + self.cb_pp_entry.grid(row=2, column=1) + self.cb_no_nodes_entry.grid(row=3, column=1) + + self.cb_no_nodes_entry.bind("<KeyRelease>", self.populate_node_fields) + + self.cb_dir_entry.bind("<FocusIn>", + lambda e: self.create_askdirectory_button( + e.widget, e.widget.grid_info()['row'])) + self.cb_dir_entry.bind("<FocusOut>", + lambda e: self.destroy_askdirectory_button()) + + return self.cb_name_entry # initial focus + + + def buttonbox(self): + # add standard button box. override if you don't want the + # standard buttons + + box = Frame(self.root) + box.pack(fill=BOTH) + + w = Button(box, text="OK", width=10, command=self.ok, default=ACTIVE) + w.pack(side=LEFT, padx=5, pady=5) + w = Button(box, text="Cancel", width=10, command=self.cancel) + w.pack(side=LEFT, padx=5, pady=5) + + + self.root.bind("<Return>", self.ok) + self.root.bind("<Escape>", self.cancel) + + + # + # standard button semantics + + def ok(self, event=None): + + if not self.validate(): + self.root.initial_focus.focus_set() # put focus back + return + + self.root.withdraw() + self.root.update_idletasks() + + self.apply() + + self.cancel() + + + def cancel(self, event=None): + #self.parent.focus_set() + self.root.destroy() + + + # command hooks + + def validate(self): + return 1 # override + + + def apply(self): + combox_name = self.cb_name_entry.get() + combox_dir = self.cb_dir_entry.get() + no_nodes = self.cb_no_nodes_entry.get() + passp = self.cb_pp_entry.get() + + print combox_name, combox_dir, passp, no_nodes + + # get info about nodes. + for i in xrange(len(self.node_path_entries)): + print "node %d" % i, + print self.node_path_entries[i].get(), + print self.node_size_entries[i].get() + + + def create_askdirectory_button(self, entry, row): + """ + Creates a button that opens askdirectory dialog at row `row'. + """ + self.ask_dir_btn = Button(self.body_frame, text="select directory", + command=lambda: self.askdirectory(entry)) + self.ask_dir_btn.grid(row=row, column=2) + + + def destroy_askdirectory_button(self): + """ + Destroys the button that opens askdirectory dialog. + """ + self.ask_dir_btn.destroy() + + + def askdirectory(self, entry): + """ + Spawns a file dialog to read a directory for an Entry. + """ + # first clear the entry + entry.delete(0, 'end') + + # spawn dialog to choose directory. + dir_path = tkFileDialog.askdirectory() + entry.insert(0, dir_path) + + + def clear_node_info_fields(self): + """ + Clears all fields related to "node information". + """ + + for i in xrange(len(self.node_path_labels)): + self.node_path_labels[i].destroy() + self.node_path_entries[i].destroy() + self.node_size_labels[i].destroy() + self.node_size_entries[i].destroy() + + self.node_path_labels = [] + self.node_size_labels = [] + self.node_path_entries = [] + self.node_size_entries = [] + + + def populate_node_fields(self, event): + """ + Populate node fields. + """ + no_nodes_str = self.cb_no_nodes_entry.get() + + if not no_nodes_str: + # do nothing. + return + + no_nodes = 0 + try: + no_nodes = int(no_nodes_str) + except ValueError: + print "Oops! You got to enter a number in here." + return + + # last occupied row number in self.body_frame. + last_occ_row = 3 + if self.node_path_labels: + # means, we've already created fields related to "node + # information" before; get rid of 'em. + self.clear_node_info_fields() + + for i in xrange(no_nodes): + node_path_str = 'node %d path' % i + node_size_str = 'node %d size (in mega bytes)' % i + + lp = Label(self.body_frame,text=node_path_str) + lp.grid(row=last_occ_row + 1, sticky=W) + + ls = Label(self.body_frame, text=node_size_str) + ls.grid(row=last_occ_row + 2, sticky=W) + + self.node_path_labels.append(lp) + self.node_size_labels.append(ls) + + ep = Entry(self.body_frame, width=40) + ep.grid(row=last_occ_row + 1, column=1, padx=5) + + es = Entry(self.body_frame, width=40) + es.grid(row=last_occ_row + 2, column=1) + + self.node_path_entries.append(ep) + self.node_size_entries.append(es) + + self.node_path_entries[i].bind("<FocusIn>", + lambda e: self.create_askdirectory_button( + e.widget, + e.widget.grid_info()['row'])) + self.node_path_entries[i].bind("<FocusOut>", + lambda e: self.destroy_askdirectory_button()) + + last_occ_row = last_occ_row + 2 + + + +# +# It is here for testing purposes only, will be removed in the future. +if __name__ == "__main__": + dialog = ComboxConfigDialog("combox configuration") |