# list_box.py: wxListBox objects
# $Id: list_box.py,v 1.22 2007/03/27 07:01:58 agriggio Exp $
#
# Copyright (c) 2002-2007 Alberto Griggio <agriggio@users.sourceforge.net>
# License: MIT (see license.txt)
# THIS PROGRAM COMES WITH NO WARRANTY
import wx
import common, misc
from edit_windows import ManagedBase
from tree import Tree
from widget_properties import *
from ChoicesProperty import *
class EditListBox(ManagedBase):
events = ['EVT_LISTBOX', 'EVT_LISTBOX_DCLICK']
def __init__(self, name, parent, id, choices, sizer, pos, property_window,
show=True):
"""\
Class to handle wxListBox objects
"""
ManagedBase.__init__(self, name, 'wxListBox', parent, id, sizer,
pos, property_window, show=show)
self.selection = 0
self.choices = choices
# properties
self.access_functions['choices'] = (self.get_choices, self.set_choices)
self.properties['choices'] = ChoicesProperty(self, 'choices', None,
[(_('Label'),
GridProperty.STRING)],
len(choices), label=_('choices'))
self.access_functions['selection'] = (self.get_selection,
self.set_selection)
self.style = 0
self.access_functions['style'] = (self.get_style, self.set_style)
self.properties['selection'] = SpinProperty(self, 'selection', None,
r=(0, len(choices)-1), label=_('selection'))
self.style_pos = (wx.LB_SINGLE, wx.LB_MULTIPLE, wx.LB_EXTENDED,
wx.LB_HSCROLL, wx.LB_ALWAYS_SB, wx.LB_NEEDED_SB,
wx.LB_SORT)
style_labels = ('#section#' + _('Style'), 'wxLB_SINGLE', 'wxLB_MULTIPLE',
'wxLB_EXTENDED', 'wxLB_HSCROLL', 'wxLB_ALWAYS_SB',
'wxLB_NEEDED_SB', 'wxLB_SORT')
self.style_tooltips = (_('Single-selection list.'),
_('Multiple-selection list: the user can toggle multiple items on '
'and off.'),
_('Extended-selection list: the user can select multiple items '
'using the SHIFT key and the mouse or special key combinations.'),
_('Create horizontal scrollbar if contents are too wide '
'(Windows only).'),
_('Always show a vertical scrollbar.'),
_('Only create a vertical scrollbar if needed.'),
_('The listbox contents are sorted in alphabetical order.'))
self.properties['style'] = CheckListProperty(
self, 'style', None, style_labels, tooltips=self.style_tooltips)
def create_widget(self):
self.widget = wx.ListBox(self.parent.widget, self.id,
choices=self.choices)
self.set_selection(self.selection)
wx.EVT_LEFT_DOWN(self.widget, self.on_set_focus)
def create_properties(self):
ManagedBase.create_properties(self)
panel = wx.ScrolledWindow(self.notebook, -1, style=wx.TAB_TRAVERSAL)
szr = wx.BoxSizer(wx.VERTICAL)
self.properties['choices'].display(panel)
self.properties['style'].display(panel)
self.properties['selection'].display(panel)
szr.Add(self.properties['style'].panel, 0, wx.EXPAND)
szr.Add(self.properties['selection'].panel, 0, wx.EXPAND)
ch = self.properties['choices'].panel
ch.SetSize((ch.GetSize()[0]-20, 200))
szr.Add(self.properties['choices'].panel, 1, wx.ALL|wx.EXPAND, 5)
panel.SetAutoLayout(True)
panel.SetSizer(szr)
szr.Fit(panel)
w, h = panel.GetSize()
from math import ceil
panel.SetScrollbars(5, 5, int(ceil(w/5.0)), int(ceil(h/5.0)))
self.notebook.AddPage(panel, 'Widget')
self.properties['choices'].set_col_sizes([-1])
def get_property_handler(self, prop_name):
if prop_name == 'choices':
return ChoicesHandler(self)
return ManagedBase.get_property_handler(self, prop_name)
def get_choices(self):
return zip(self.choices)
def set_choices(self, values):
self.choices = [ misc.wxstr(v[0]) for v in values ]
self.properties['selection'].set_range(0, len(self.choices)-1)
if self.widget:
self.widget.Clear()
for c in self.choices: self.widget.Append(c)
if not self.properties['size'].is_active():
self.sizer.set_item(self.pos, size=self.widget.GetBestSize())
self.widget.SetSelection(
int(self.properties['selection'].get_value()))
def get_style(self):
retval = [0] * len(self.style_pos)
try:
for i in range(len(self.style_pos)):
if self.style & self.style_pos[i]:
retval[i] = 1
except AttributeError: pass
return retval
def set_style(self, value):
value = self.properties['style'].prepare_value(value)
self.style = 0
for v in range(len(value)):
if value[v]:
self.style |= self.style_pos[v]
if self.widget: self.widget.SetWindowStyleFlag(self.style)
def get_selection(self):
return self.selection
def set_selection(self, value):
value = int(value)
if value != self.selection:
self.selection = value
if self.widget:
self.widget.SetSelection(value)
# end of class EditListBox
def builder(parent, sizer, pos, number=[1]):
"""\
factory function for EditListBox objects.
"""
name = 'list_box_%d' % number[0]
while common.app_tree.has_name(name):
number[0] += 1
name = 'list_box_%d' % number[0]
list_box = EditListBox(name, parent, wx.NewId(),
#[misc._encode('choice 1')], sizer, pos,
[], sizer, pos,
common.property_panel)
node = Tree.Node(list_box)
## sizer.set_item(pos, size=list_box.GetBestSize())
list_box.node = node
list_box.show_widget(True)
common.app_tree.insert(node, sizer.node, pos-1)
def xml_builder(attrs, parent, sizer, sizeritem, pos=None):
"""\
factory to build EditListBox objects from an xml file
"""
from xml_parse import XmlParsingError
try: name = attrs['name']
except KeyError: raise XmlParsingError, _("'name' attribute missing")
if sizer is None or sizeritem is None:
raise XmlParsingError, _("sizer or sizeritem object cannot be None")
list_box = EditListBox(name, parent, wx.NewId(), [], sizer, pos,
common.property_panel)
sizer.set_item(list_box.pos, option=sizeritem.option,
flag=sizeritem.flag, border=sizeritem.border)
## size=list_box.GetBestSize())
node = Tree.Node(list_box)
list_box.node = node
if pos is None: common.app_tree.add(node, sizer.node)
else: common.app_tree.insert(node, sizer.node, pos-1)
return list_box
def initialize():
"""\
initialization function for the module: returns a wxBitmapButton to be
added to the main palette.
"""
common.widgets['EditListBox'] = builder
common.widgets_from_xml['EditListBox'] = xml_builder
return common.make_object_button('EditListBox', 'icons/list_box.xpm')
|