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#!/usr/bin/env python
# Copyright (C) 2012 Cristhofer Travieso <cristhofert97@gmail.com>
# This program 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 2 of the License, or
# (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
from gi.repository import Gtk
class Canvas(Gtk.VBox):
def __init__(self):
Gtk.VBox.__init__(self)
self.entry = Gtk.Entry()
self.add(self.entry)
table = Gtk.Table()
self.add(table)
b0 = Gtk.Button('0')
b0.connect('clicked', self.add_character)
b00 = Gtk.Button('00')
b00.connect('clicked', self.add_character)
b1 = Gtk.Button('1')
b1.connect('clicked', self.add_character)
b2 = Gtk.Button('2')
b2.connect('clicked', self.add_character)
b3 = Gtk.Button('3')
b3.connect('clicked', self.add_character)
b4 = Gtk.Button('4')
b4.connect('clicked', self.add_character)
b5 = Gtk.Button('5')
b5.connect('clicked', self.add_character)
b6 = Gtk.Button('6')
b6.connect('clicked', self.add_character)
b7 = Gtk.Button('7')
b7.connect('clicked', self.add_character)
b8 = Gtk.Button('8')
b8.connect('clicked', self.add_character)
b9 = Gtk.Button('9')
b9.connect('clicked', self.add_character)
b_dot = Gtk.Button('.')
b_dot.connect('clicked', self.add_character)
b_plus = Gtk.Button('+')
b_plus.connect('clicked', self.add_character)
b_minus = Gtk.Button('-')
b_minus.connect('clicked', self.add_character)
b_times = Gtk.Button('*')
b_times.connect('clicked', self.add_character)
b_divided = Gtk.Button('/')
b_divided.connect('clicked', self.add_character)
table.attach(b7, 0, 1, 0, 1)
table.attach(b4, 0, 1, 1, 2)
table.attach(b1, 0, 1, 2, 3)
table.attach(b0, 0, 1, 3, 4)
table.attach(b8, 1, 2, 0, 1)
table.attach(b5, 1, 2, 1, 2)
table.attach(b2, 1, 2, 2, 3)
table.attach(b_dot, 1, 2, 3, 4)
table.attach(b9, 2, 3, 0, 1)
table.attach(b6, 2, 3, 1, 2)
table.attach(b3, 2, 3, 2, 3)
table.attach(b00, 2, 3, 3, 4)
table.attach(b_divided, 3, 4, 0, 1)
table.attach(b_times, 3, 4, 1, 2)
table.attach(b_minus, 3, 4, 2, 3)
table.attach(b_plus, 3, 4, 3, 4)
equals_button = Gtk.Button('=')
equals_button.connect('clicked', self.work)
self.add(equals_button)
def add_character(self, widget):
text = widget.get_label()
text_a = self.entry.get_text()
text_end = text_a + text
self.entry.set_text(text_end)
def work(self, widget):
entry_text = self.entry.get_text()
result = eval(entry_text)
self.entry.set_text(str(result))
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