#!/usr/bin/env python3

# -*- coding: utf-8 -*-

import locale

import os

from tuikit.application import Application

from tuikit.window import Window

from tuikit.label import Label

from tuikit.button import Button

from tuikit.layout import AnchorLayout

from tuikit.common import Borders

class MyApplication(Application):

    def __init__(self):

        Application.__init__(self)

        self.top = AnchorLayout()

        self.top.name = 'top'

        self.top.add_handler('keypress', self.on_top_keypress)

        win = Window()

        win.name = 'window'

        win.title = 'AnchorLayout demo'

        win.resize(80, 25)

        self.top.add(win, halign='left', valign='top')

        self.win = win

        button_valign = Button('valign: ' + self.win.hints['valign'].selected)

        button_valign.name = 'button_valign'

        button_valign.add_handler('click', self.on_button_align_click)

        win.add(button_valign, halign='center', margin=Borders(t=2))

        button_halign = Button('halign: ' + self.win.hints['halign'].selected)

        button_halign.name = 'button_halign'

        button_halign.add_handler('click', self.on_button_align_click)

        win.add(button_halign, halign='center', margin=Borders(t=4))

        label_margin = Label(str(self.win.hints['margin']))

        label_margin.name = 'label_margin'

        label_margin.add_handler('draw', self.on_label_margin_draw)

        win.add(label_margin, halign='center', margin=Borders(t=6))

        label_size = Label(str(self.win.sizereq))

        label_size.name = 'label_size'

        label_size.add_handler('draw', self.on_label_size_draw)

        win.add(label_size, halign='center', margin=Borders(t=8))

    def on_button_align_click(self, ev):

        align_type = ev.originator.label.split(':', 1)[0]

        align = self.win.hints[align_type]

        align.select_next()

        ev.originator.label = '%s: %s' % (align_type, align.selected)

        self.top.emit('resize')

        return True

    def on_label_margin_draw(self, ev):

        ev.originator.label = str(self.win.hints['margin'])

    def on_label_size_draw(self, ev):

        ev.originator.label = str(self.win.sizereq)

    def on_top_keypress(self, ev):

        if ev.keyname == 'escape':

            self.terminate()

            return True

if __name__ == '__main__':

    locale.setlocale(locale.LC_ALL, '')

    os.environ['ESCDELAY'] = '25' # do not wait 1 second after pressing Escape key

    app = MyApplication()

    app.start()