如何在滚动窗口？

Question

我对Gtk.Treeview索引aGtk.ScrolledWindow有问题。我有大量的数据，这些数据不适合我正常的窗口几何结构，所以我把树状视图放在ScrolledWindow中，这似乎是正常的方式。这个解决方案的问题是，当我滚动时，列标题会消失。这种行为在我看来还行，因为ScrolledWindow应该关心它内部的小部件。在

那么，如何使Treeview可滚动并且始终在第一行显示列标题？在

我修改了基本视图.py表示我的问题的示例：

#!/usr/bin/env python

# example basictreeview.py

import pygtk
pygtk.require('2.0')
import gtk

class BasicTreeViewExample:

    # close the window and quit
    def delete_event(self, widget, event, data=None):
        gtk.main_quit()
        return False

    def __init__(self):
        # Create a new window
        self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
        self.window.set_title("Basic TreeView Example")
        self.window.set_size_request(200, 200)
        self.window.connect("delete_event", self.delete_event)

        # create a TreeStore with one string column to use as the model
        self.liststore = gtk.ListStore(str)

        # we'll add some data now - 4 rows with 3 child rows each
        for i in range(10):
            self.liststore.append([str(i)])

        # create the TreeView using treestore
        self.treeview = gtk.TreeView(self.liststore)

        # create the TreeViewColumn to display the data
        self.tvcolumn = gtk.TreeViewColumn("Column-Name", gtk.CellRendererText(), text=0)

        # add tvcolumn to treeview
        self.treeview.append_column(self.tvcolumn)

        # make it searchable
        self.treeview.set_search_column(0)

        # Allow sorting on the column
        self.tvcolumn.set_sort_column_id(0)

        # Allow drag and drop reordering of rows
        self.treeview.set_reorderable(True)

        # Add Treeview to a ScrolledWindow
        self.scrolledwindow = gtk.ScrolledWindow(hadjustment=None, vadjustment=None)
        self.scrolledwindow.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
        self.scrolledwindow.add_with_viewport(self.treeview)

        self.window.add(self.scrolledwindow)

        self.window.show_all()

def main():
    gtk.main()

if __name__ == "__main__":
    tvexample = BasicTreeViewExample()
    main()

Answer 1

将self.scrolledwindow.add_with_viewport更改为self.scrolledwindow.add，它将工作。来自the documentation：

The add_with_viewport() method is used to add a widget (specified by child) without native scrolling capabilities to the scrolled window. This is a convenience function that is equivalent to adding child to a gtk.Viewport, then adding the viewport to the scrolled window. If a child has native scrolling (e.g. gtk.TextView, gtk.TreeView, gtk.Layout), use gtk.Container.add() instead of this method.

gtk.TreeView的“本机滚动”将列标题保持在顶部，但如果先将整个treeview小部件放入gtk.Viewport中，则整个小部件将滚动。在