我已经使用xml描述文件用pyGObject创建了一个GUI，并试图用GtkTreeView创建一个侧边栏。GtkTreeView不会在GUI的标题和子项中显示任何文本，即使我添加了一些。为什么？我该怎么修？
侧边栏应该显示以下内容：
Parent 1
Child 1
Child 2
Child 3
等等。
我的代码的简短版本如下所示。
应用程序py
#!/usr/bin/env python2
from gi.repository import Gtk
class AppUI:
def __init__(self):
self.builder = Gtk.Builder()
self.builder.add_from_file("app.xml")
self.window = self.builder.get_object("main-window")
self.sidebarStore = self.builder.get_object("sidebar-store")
for parent in range(4):
piter = self.sidebarStore.append(None, ['parent %i' % parent])
for child in range(3):
self.sidebarStore.append(piter, ['child %i of parent %i' % (child, parent)])
self.handlers = {
"onDeleteWindow": Gtk.main_quit,
}
self.builder.connect_signals(self.handlers)
self.window.show_all()
UI = AppUI()
Gtk.main()
app.xml：UI描述
<?xml version="1.0" encoding="UTF-8"?>
<interface>
<object class="GtkTreeStore" id="sidebar-store">
<columns>
<column type="gchararray"/>
</columns>
</object>
<object class="GtkWindow" id="main-window">
<property name="title"></property>
<signal name="delete-event" handler="onDeleteWindow"/>
<child>
<object class="GtkBox" id="container">
<property name="orientation">horizontal</property>
<child>
<object class="GtkTreeView" id="sidebar">
<property name="model">sidebar-store</property>
<property name="headers-visible">false</property>
<child>
<object class="GtkTreeViewColumn" id="test-column">
<child>
<object class="GtkCellRendererText" id="test-renderer"/>
</child>
</object>
</child>
</object>
</child>
<child>
<object class="GtkBox" id="right-container">
<property name="orientation">vertical</property>
<child>
<object class="GtkButtonBox" id="top-buttonbox">
<child>
<object class="GtkButton" id="add-button">
<property name="label">Add</property>
</object>
</child>
<child>
<object class="GtkButton" id="delete-button">
<property name="label">Delete</property>
</object>
</child>
</object>
</child>
</object>
</child>
</object>
</child>
</object>
</interface>
非常简单，您没有将任何列映射到文本呈现器。
顺便说一句，你用什么编辑器来创建UI？你是手写的吗？使用Glade，这样生活会更轻松。
在Glade中，右键单击TreeView->Edit->Hierarchy->Select Cell Renderer->映射到模型中列的Text。
以下是通过Glade编辑的XML的更正版本。最相关的部分是：
<attributes>
<attribute name="text">0</attribute>
</attributes>
定义文本单元渲染器时。
<?xml version="1.0" encoding="UTF-8"?>
<interface>
<!-- interface-requires gtk+ 3.0 -->
<object class="GtkTreeStore" id="sidebar-store">
<columns>
<!-- column-name gchararray -->
<column type="gchararray"/>
</columns>
</object>
<object class="GtkWindow" id="main-window">
<property name="can_focus">False</property>
<signal name="delete-event" handler="onDeleteWindow" swapped="no"/>
<child>
<object class="GtkBox" id="container">
<property name="can_focus">False</property>
<child>
<object class="GtkTreeView" id="sidebar">
<property name="width_request">100</property>
<property name="can_focus">False</property>
<property name="model">sidebar-store</property>
<property name="headers_visible">False</property>
<child internal-child="selection">
<object class="GtkTreeSelection" id="treeview-selection1"/>
</child>
<child>
<object class="GtkTreeViewColumn" id="test-column">
<child>
<object class="GtkCellRendererText" id="test-renderer"/>
<attributes>
<attribute name="text">0</attribute>
</attributes>
</child>
</object>
</child>
</object>
<packing>
<property name="expand">False</property>
<property name="fill">True</property>
<property name="position">0</property>
</packing>
</child>
<child>
<object class="GtkBox" id="right-container">
<property name="can_focus">False</property>
<property name="orientation">vertical</property>
<child>
<object class="GtkButtonBox" id="top-buttonbox">
<property name="can_focus">False</property>
<child>
<object class="GtkButton" id="add-button">
<property name="label">Add</property>
<property name="use_action_appearance">False</property>
<property name="can_focus">False</property>
<property name="receives_default">False</property>
<property name="use_action_appearance">False</property>
</object>
<packing>
<property name="expand">False</property>
<property name="fill">True</property>
<property name="position">0</property>
</packing>
</child>
<child>
<object class="GtkButton" id="delete-button">
<property name="label">Delete</property>
<property name="use_action_appearance">False</property>
<property name="can_focus">False</property>
<property name="receives_default">False</property>
<property name="use_action_appearance">False</property>
</object>
<packing>
<property name="expand">False</property>
<property name="fill">True</property>
<property name="position">1</property>
</packing>
</child>
</object>
<packing>
<property name="expand">False</property>
<property name="fill">True</property>
<property name="position">0</property>
</packing>
</child>
</object>
<packing>
<property name="expand">False</property>
<property name="fill">True</property>
<property name="position">1</property>
</packing>
</child>
</object>
</child>
</object>
</interface>