Package libxyz :: Package ui :: Module border

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# Source Code for Module libxyz.ui.border

      1  #-*- coding: utf8 -*
      2  #
      3  # Max E. Kuznecov ~syhpoon <syhpoon@syhpoon.name> 2008
      4  #
      5  # This file is part of XYZCommander.
      6  # XYZCommander is free software: you can redistribute it and/or modify
      7  # it under the terms of the GNU Lesser Public License as published by
      8  # the Free Software Foundation, either version 3 of the License, or
      9  # (at your option) any later version.
     10  # XYZCommander is distributed in the hope that it will be useful,
     11  # but WITHOUT ANY WARRANTY; without even the implied warranty of
     12  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
     13  # GNU Lesser Public License for more details.
     14  # You should have received a copy of the GNU Lesser Public License
     15  # along with XYZCommander. If not, see <http://www.gnu.org/licenses/>.
     16
     17  from libxyz.ui import lowui
     18  from libxyz.ui import align
     19
     20  from libxyz.exceptions import UIError
     21
     22 -class Border(lowui.BoxWidget):
     23 -    def __init__(self, widget, title=None, title_attr=None, attr=None):
     24          """
     25          Draw a line border around widget and set up a title
     26          @param widget: Widget to wrap
     27          @param title: Title
     28          @type title: libxyz.ui.lowui.Text object
     29          @param title_attr: Title attribute
     30          @param attr: Attribute of border
     31          """
     32
     33          super(Border, self).__init__()
     34
     35          self.widget = widget
     36          self.title = title
     37          self.title_attr = title_attr
     38          self.attr = attr
     39          self._attr = self.attr
     40
     41          self.utf8decode = lowui.escape.utf8decode
     42
     43          self.tline = self._get_attr(lowui.Divider(self.utf8decode("─")))
     44          self.bline = self._get_attr(lowui.Divider(self.utf8decode("─")))
     45          self.lline = self._get_attr(lowui.SolidFill(self.utf8decode("│")))
     46          self.rline = self._get_attr(lowui.SolidFill(self.utf8decode("│")))
     47
     48          self.tlcorner = self._get_attr(lowui.Text(self.utf8decode("┌")))
     49          self.trcorner = self._get_attr(lowui.Text(self.utf8decode("┐")))
     50          self.blcorner = self._get_attr(lowui.Text(self.utf8decode("└")))
     51          self.brcorner = self._get_attr(lowui.Text(self.utf8decode("┘")))
     52
     53      #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     54
     55 -    def render(self, (maxcol, maxrow), focus=False):
     56          """
     57          Render widget
     58          """
     59
     60          if self.title is not None:
     61              _len = len(self.title)
     62
     63              if self.title_attr is not None:
     64                  self._title = lowui.AttrWrap(lowui.Text(" %s " % self.title,
     65                                               align.CENTER), self.title_attr)
     66              else:
     67                  self._title = lowui.Text(self.title, align.CENTER)
     68
     69              _len += 2 # " text "
     70
     71          tline_widgets = [('fixed', 1, self.tlcorner), self.tline]
     72
     73          if self.title is not None:
     74              tline_widgets.append(("fixed", _len, self._title))
     75
     76          tline_widgets.extend([self.tline, ("fixed", 1, self.trcorner)])
     77
     78          self.top = lowui.Columns(tline_widgets)
     79          self.middle = lowui.Columns([('fixed', 1, self.lline),
     80                                      self.widget, ('fixed', 1, self.rline)],
     81                                      box_columns=[0,2], focus_column=1)
     82
     83          self.bottom = lowui.Columns([('fixed', 1, self.blcorner),
     84                                      self.bline, ('fixed', 1, self.brcorner)])
     85
     86          self.pile = lowui.Pile([('flow',self.top), self.middle,
     87                                 ('flow', self.bottom)], focus_item=1)
     88
     89          return self.pile.render((maxcol, maxrow), focus)
     90
     91      #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     92
     93 -    def _get_attr(self, widget):
     94          if self.attr is None:
     95              return widget
     96
     97          return lowui.AttrWrap(widget, self.attr)
     98
     99      #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    100
    101 -    def set_title_attr(self, attr):
    102          """
    103          Set title attribute
    104          """
    105
    106          self.title_attr = attr
    107          self._invalidate()
    108
    109      #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    110
    111 -    def set_title(self, text):
    112          """
    113          Set title
    114          """
    115
    116          self.title = text
    117          self._invalidate()
    118