Mercurial > fife-parpg
comparison engine/extensions/pychan/widgets/listbox.py @ 248:a2d5e2721489
widgets.py split up.
| author | phoku@33b003aa-7bff-0310-803a-e67f0ece8222 |
|---|---|
| date | Thu, 26 Mar 2009 16:20:16 +0000 |
| parents | |
| children | 10b5f7f36dd4 |
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| 247:040387b7167f | 248:a2d5e2721489 |
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| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 from common import * | |
| 4 from widget import Widget | |
| 5 | |
| 6 class GenericListmodel(fife.ListModel,list): | |
| 7 """ | |
| 8 A wrapper for the exported list model to behave more like a Python list. | |
| 9 Don't use directly. | |
| 10 """ | |
| 11 def __init__(self,*args): | |
| 12 super(GenericListmodel,self).__init__() | |
| 13 map(self.append,args) | |
| 14 def clear(self): | |
| 15 while len(self): | |
| 16 self.pop() | |
| 17 def getNumberOfElements(self): | |
| 18 return len(self) | |
| 19 | |
| 20 def getElementAt(self, i): | |
| 21 i = max(0,min(i,len(self) - 1)) | |
| 22 return str(self[i]) | |
| 23 | |
| 24 class ListBox(Widget): | |
| 25 """ | |
| 26 A basic list box widget for displaying lists of strings. It makes most sense to wrap | |
| 27 this into a L{ScrollArea}. | |
| 28 | |
| 29 New Attributes | |
| 30 ============== | |
| 31 | |
| 32 - items: A List of strings. This can be treated like an ordinary python list. | |
| 33 but only strings are allowed. | |
| 34 - selected: The index of the selected item in the list. Starting from C{0} to C{len(items)-1}. | |
| 35 A negative value indicates, that no item is selected. | |
| 36 - selected_item: The selected string itself, or C{None} - if no string is selected. | |
| 37 | |
| 38 Data | |
| 39 ==== | |
| 40 The selected attribute can be read and set via L{distributeData} and L{collectData}. | |
| 41 The list items can be set via L{distributeInitialData}. | |
| 42 """ | |
| 43 def __init__(self,items=[],**kwargs): | |
| 44 self._items = GenericListmodel(*items) | |
| 45 self.real_widget = fife.ListBox(self._items) | |
| 46 super(ListBox,self).__init__(**kwargs) | |
| 47 | |
| 48 # Prepare Data collection framework | |
| 49 self.accepts_initial_data = True | |
| 50 self._realSetInitialData = self._setItems | |
| 51 | |
| 52 self.accepts_data = True | |
| 53 self._realSetData = self._setSelected | |
| 54 self._realGetData = self._getSelected | |
| 55 | |
| 56 def resizeToContent(self,recurse=True): | |
| 57 # We append a minimum value, so max() does not bail out, | |
| 58 # if no items are in the list | |
| 59 _item_widths = map(self.real_font.getWidth,map(str,self._items)) + [0] | |
| 60 max_w = max(_item_widths) | |
| 61 self.width = max_w | |
| 62 self.height = (self.real_font.getHeight() + 2) * len(self._items) | |
| 63 | |
| 64 def _getItems(self): return self._items | |
| 65 def _setItems(self,items): | |
| 66 # Note we cannot use real_widget.setListModel | |
| 67 # for some reason ??? | |
| 68 | |
| 69 # Also self assignment can kill you | |
| 70 if id(items) != id(self._items): | |
| 71 self._items.clear() | |
| 72 self._items.extend(items) | |
| 73 | |
| 74 items = property(_getItems,_setItems) | |
| 75 | |
| 76 def _getSelected(self): return self.real_widget.getSelected() | |
| 77 def _setSelected(self,index): self.real_widget.setSelected(index) | |
| 78 selected = property(_getSelected,_setSelected) | |
| 79 def _getSelectedItem(self): | |
| 80 if 0 <= self.selected < len(self._items): | |
| 81 return self._items[self.selected] | |
| 82 return None | |
| 83 selected_item = property(_getSelectedItem) |