=================
Layout Management
=================
  ($Id$)
  >>> from zope import component
  >>> from zope.interface import Interface
  >>> from cybertools.composer.layout.base import Layout, LayoutInstance
  >>> from cybertools.composer.layout.region import Region, regions
Browser Views
=============
  >>> from zope.traversing.adapters import DefaultTraversable
  >>> component.provideAdapter(DefaultTraversable, (Interface,))
  >>> from cybertools.composer.layout.browser.layout import PageLayout
  >>> pageLayout = PageLayout()
  >>> pageLayoutInstance = LayoutInstance(pageLayout)
  >>> from zope.app.pagetemplate import ViewPageTemplateFile
  >>> bodyLayout = Layout()
  >>> bodyLayout.renderer = ViewPageTemplateFile('browser/liquid/body.pt').macros['body']
  >>> bodyRegion = Region('body')
  >>> bodyRegion.layouts.append(LayoutInstance(bodyLayout))
  >>> regions['page.body'] = bodyRegion
  >>> standardRenderers = ViewPageTemplateFile('browser/standard.pt').macros
  >>> footerLayout = Layout()
  >>> footerLayout.renderer = standardRenderers['footer']
  >>> footerRegion = Region('footer')
  >>> footerRegion.layouts.append(LayoutInstance(footerLayout))
  >>> regions['body.footer'] = footerRegion
  >>> from cybertools.composer.layout.browser.view import Page
  >>> from zope.publisher.browser import TestRequest
  >>> page = Page(pageLayoutInstance, TestRequest())
  >>> page()
  u'<!DOCTYPE ...>...<html ...>...</html>...