def get_preview_obj_bitmap(self, bitmap=None):
"""Create a wx.Bitmap or wx.EmptyBitmap from the given statement.
If no statement is given, the instance variable named "bitmap" is used.
bitmap: Bitmap definition (str or None)
see: get_preview_obj_artprovider(), get_preview_obj_emptybitmap()"""
if bitmap is None:
bitmap = getattr(self, 'bitmap', None)
if not bitmap:
return compat.wx_EmptyBitmap(1, 1)
if bitmap.startswith('var:') or bitmap.startswith('code:'):
return compat.wx_EmptyBitmap(16, 16)
elif bitmap.startswith('empty:'):
return self.get_preview_obj_emptybitmap(bitmap)
elif bitmap.startswith('art:'):
return self.get_preview_obj_artprovider(bitmap)
else:
bitmap = misc.get_absolute_path(bitmap)
return wx.Bitmap(bitmap, wx.BITMAP_TYPE_ANY)
def get_preview_obj_emptybitmap(self, bitmap):
"""Create an empty wx.EmptyBitmap instance from the given statement.
bitmap: Bitmap definition as str or None
see: wcodegen.BaseWidgetWriter.get_inline_stmt_emptybitmap()"""
# keep in sync with BaseWidgetWriter.get_inline_stmt_emptybitmap()
width = 16
height = 16
try:
size = bitmap[6:]
width, height = [int(item.strip()) for item in size.split(',', 1)]
except ValueError:
self._logger.warn( 'Malformed statement to create an empty bitmap: %s', bitmap )
return compat.wx_EmptyBitmap( max(1,width), max(1,height) )