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我想写一个应用程序与女巫树视图小部件我将存储我的类'物品'的对象。如何从GObject类继承?
我知道为了做到这一点,我的'Item'类必须继承GObject类。不幸的是有些事情是错误的,我没有看到我的树上的项目文本。我只得到这个警告:
Warning: unable to set property 'text' of type 'gchararray' from value of type '__main__+Item'
我需要做什么来解决这个问题?
此示例程序是演示问题,它可以测试修正:
#!/usr/bin/env python3
from gi.repository import Gtk
from gi.repository import GObject
class Item(GObject.GObject):
text = GObject.property(type=str, default='item', flags=GObject.PARAM_READWRITE)
def __init__(self, title):
GObject.GObject.__init__(self)
self.__title = title
def __str__(self):
return self.__title
GObject.type_register(Item)
class MainWindow(Gtk.Window):
def __init__(self):
super().__init__(Gtk.WindowType.TOPLEVEL)
self.connect('destroy', self.on_destroy)
tree_model = Gtk.TreeStore(Item.__gtype__)
# tree_model = Gtk.TreeStore(str)
text_renderer = Gtk.CellRendererText()
text_column = Gtk.TreeViewColumn(None, text_renderer)
text_column.add_attribute(text_renderer, 'text', 0)
tree_view = Gtk.TreeView(tree_model)
tree_view.append_column(text_column)
self.add(tree_view)
self.show_all()
tree_model.append(None, (Item('test'),))
# tree_model.append(None, ('It works!',))
def on_destroy(self, e):
Gtk.main_quit()
if __name__ == '__main__':
MainWindow()
Gtk.main()