tuikit/pager.py
author Radek Brich <radek.brich@devl.cz>
Fri, 14 Dec 2012 10:20:14 +0100
changeset 32 088b92ffb119
parent 30 05500124d7fb
child 34 e3beacd5e536
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Clean up, refactoring. Rename EventSource to Emitter, begin merging emit() method with handle().
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# -*- coding: utf-8 -*-
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import logging
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from tuikit.container import Container
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from tuikit.layout import VerticalLayout, HorizontalLayout
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from tuikit.button import Button
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class Pager(Container):
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    '''Only one of children is visible at the time.
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    Pages are switched using buttons at top (tabs).
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    page_one = Container()
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    pager.add(page_one, title="page one")
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    pager.select(page_one)
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    '''
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    def __init__(self, width=20, height=20):
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        Container.__init__(self, width, height)
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        # selected child (only one visible)
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        self.selected = None
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        vert = VerticalLayout()
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        self.layout(vert)
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        self.buttons = Container(20, 1)
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        self.buttons.sizereq.h = 1
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        Container.add(self, self.buttons)
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        horz = HorizontalLayout(homogeneous=True, spacing=1)
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        self.buttons.layout(horz)
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    def add(self, widget, **kw):
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        Container.add(self, widget, expand=True, fill=True)
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        if self.selected is None:
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            self.selected = widget
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            widget.hidden = False
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        else:
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            widget.hidden = True
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        btn = Button(kw['title'])
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        btn.connect('click', lambda: self.select(widget))
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        self.buttons.add(btn, fill=True)
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    def select(self, child):
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        log = logging.getLogger('tuikit')
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        log.debug('Pager: select %r', child)
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        self.selected.hidden = True
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        child.hidden = False
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        self.selected = child
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        self.handle('resize')
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