# 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 # 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)) 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)) 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')