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# -*- coding: utf-8 -*-
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# Relational
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# Copyright (C) 2010 Salvo "LtWorf" Tomaselli
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#
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# Relational is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# author Salvo "LtWorf" Tomaselli <tiposchi@tiscali.it>
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import curses
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import curses.panel
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import locale
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import signal
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import sys
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from relational import *
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def terminate(*a):
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'''Restores the terminal and terminates'''
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curses.nocbreak()
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stdscr.keypad(0)
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curses.echo()
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curses.endwin()
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sys.exit(0)
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def main():
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global stdscr
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#Initializes the signal
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signal.signal(signal.SIGINT,terminate)
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#Initialize locale, to print unicode chars
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locale.setlocale(locale.LC_ALL,"")
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#Initializes curses
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stdscr = curses.initscr()
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curses.start_color()
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curses.noecho()
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curses.cbreak()#Handles keys immediately rather than awaiting for enter
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stdscr.keypad(1)
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termsize=stdscr.getmaxyx()
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symselect=init_symbol_list(termsize)
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lop=curses.panel.new_panel(stdscr)
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win=curses.panel.new_panel(curses.newwin(termsize[0],termsize[1]))
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#win.window().box()
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win.window().addstr(0,(termsize[1]/2)-5,"Relational")
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win.window().refresh()
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#curses.napms(1000)
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query=curses.panel.new_panel(curses.newwin(3,termsize[1],1,0))
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query.window().box()
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query.window().addstr(1,1,"")
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query.window().refresh()
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#curses.napms(1000)
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#win.show()
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#curses.napms(1000)
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#qq=curses.textpad.Textbox(stdscr)
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'''win = curses.newwin(0, 0)#New windows for the entire screen
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#stdscr.border(0)
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stdscr.addstr(str(dir (win)))
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#curses.init_pair(1, curses.COLOR_RED, curses.COLOR_BLACK)
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#stdscr.addstr(0,0,"ciao",curses.color_pair(1))
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stdscr.addstr(5, 30, "Welcome to Relational")#,curses.A_REVERSE)
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stdscr.refresh()
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stdscr.refresh()
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curses.napms(300)
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curses.flash()
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curses.textpad.rectangle(win,0,0,5,10)'''
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squery=''
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while True:
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c = win.window().getch()
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if c==27: #Escape
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squery+=add_symbol(symselect)
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#elif c==curses.KEY_BACKSPACE: #Delete
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elif c==13:
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squery=squery[:-1]
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else:
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squery+=chr(c);
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query.window().box()
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query.top()
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query.window().addstr(1,1,spaces(termsize[1]-2))
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query.window().addstr(1,1,squery)
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query.window().refresh()
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def init_symbol_list(termsize,create=True):
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if create:
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p=curses.panel.new_panel(curses.newwin(15,16,2,termsize[1]/2-7))
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else:
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p=termsize
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p.window().box()
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#p.window().addstr(1,1,"\n8 \na \nb \n")
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p.window().addstr(01,2,"0 *")
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p.window().addstr(02,2,"1 -")
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p.window().addstr(03,2,"2 ᑌ")
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p.window().addstr(04,2,"3 ᑎ")
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p.window().addstr(05,2,"4 ᐅᐊ")
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p.window().addstr(06,2,"5 ᐅLEFTᐊ")
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p.window().addstr(07,2,"6 ᐅRIGHTᐊ")
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p.window().addstr( 8,2,"7 ᐅFULLᐊ")
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p.window().addstr( 9,2,"8 σ")
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p.window().addstr(10,2,"9 ρ")
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p.window().addstr(11,2,"a π")
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p.window().addstr(12,2,"b ➡")
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p.window().addstr(13,2,"")
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#p.hide()
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return p
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def add_symbol(p):
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'''Shows the panel to add a symbol
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and then returns the choosen symbol itself'''
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init_symbol_list(p,False)
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d_={'0':'*','1':'-','2':'ᑌ','3':'ᑎ','4':'ᐅᐊ','5':'ᐅLEFTᐊ','6':'ᐅRIGHTᐊ','7':'ᐅFULLᐊ','8':'σ','9':'ρ','a':'π','b':'➡'}
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p.show()
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p.top()
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p.window().refresh()
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c = p.window().getch()
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p.hide()
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p.window().refresh()
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try:
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char=d_[chr(c)]
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except:
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char=''
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return char
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def spaces(t):
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'''Returns a number of spaces specified t'''
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s=''
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for i in range(t):
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s+=' '
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return s
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if __name__=='__main__':
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main()
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terminate() |