demo_anchorlayout.py
author Radek Brich <radek.brich@devl.cz>
Sun, 03 Feb 2013 16:38:41 +0100
changeset 77 fc1989059e19
parent 76 fa5301e58eca
permissions -rwxr-xr-x
Propagate "quit" event, do not just terminate application. Resize: flag widgets to be resized, do resizes only once before draw. Draw: flag widgets to be redrawn, do not draw everything on any event.
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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import locale
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import os
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from tuikit.application import Application
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from tuikit.window import Window
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from tuikit.label import Label
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from tuikit.button import Button
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from tuikit.layout import AnchorLayout
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from tuikit.common import Borders
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class MyApplication(Application):
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    def __init__(self):
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        Application.__init__(self)
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        self.top = AnchorLayout()
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        self.top.name = 'top'
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        self.top.add_handler('keypress', self.on_top_keypress)
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        win = Window()
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        win.name = 'window'
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        win.title = 'AnchorLayout demo'
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        win.resize(80, 25)
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        self.top.add(win, halign='left', valign='top')
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        self.win = win
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        button_valign = Button('valign: ' + self.win.hint_value('valign'))
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        button_valign.name = 'button_valign'
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        button_valign.add_handler('click', self.on_button_align_click)
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        win.add(button_valign, halign='center', margin=Borders(t=2))
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        button_halign = Button('halign: ' + self.win.hint_value('halign'))
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        button_halign.name = 'button_halign'
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        button_halign.add_handler('click', self.on_button_align_click)
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        win.add(button_halign, halign='center', margin=Borders(t=4))
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        label_margin = Label(str(self.win.hint_value('margin')))
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        label_margin.name = 'label_margin'
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        label_margin.add_handler('draw', self.on_label_margin_draw)
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        win.add(label_margin, halign='center', margin=Borders(t=6))
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        label_size = Label(str(self.win.sizereq))
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        label_size.name = 'label_size'
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        label_size.add_handler('draw', self.on_label_size_draw)
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        win.add(label_size, halign='center', margin=Borders(t=8))
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    def on_button_align_click(self, ev):
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        align_type = ev.originator.label.split(':', 1)[0]
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        align = self.win.get_hint(align_type)
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        align.select_next()
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        ev.originator.label = '%s: %s' % (align_type, align.selected)
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        self.top.need_resize()
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        return True
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    def on_label_margin_draw(self, ev):
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        ev.originator.label = str(self.win.hint_value('margin'))
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    def on_label_size_draw(self, ev):
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        ev.originator.label = str(self.win.sizereq)
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    def on_top_keypress(self, ev):
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        if ev.keyname == 'escape':
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            self.terminate()
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            return True
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if __name__ == '__main__':
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    locale.setlocale(locale.LC_ALL, '')
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    os.environ['ESCDELAY'] = '25' # do not wait 1 second after pressing Escape key
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    app = MyApplication()
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    app.start()