python gtk3 treeview 右键没有选择正确的选择

Question

我有以下代码，当我直接用右键选择一行时，它输出前一个选择的项目，而不是刚刚点击的当前项目。

我错过了什么？

#!/usr/bin/env python3

from gi.repository import Gtk, GLib, Gio

class Test(Gtk.Window):
  def __init__(self):
    Gtk.Window.__init__(self)
    store = Gtk.ListStore(str)
    self.tree = Gtk.TreeView(store)
    for i in range(0,10):
        store.append(["test " + str(i)])
    self.connect("delete-event", Gtk.main_quit)
    self.tree.connect("button_press_event", self.mouse_click)

    renderer = Gtk.CellRendererText()
    column = Gtk.TreeViewColumn("Title", renderer, text=0)
    self.tree.append_column(column)
    self.add(self.tree)

def mouse_click(self, tv, event):
    if event.button == 3:
        selection = self.tree.get_selection()
        (model, iter) = selection.get_selected()
        print(model[iter][0])

win = Test()
win.show_all()
Gtk.main()

Answer 1

诀窍是使用 treeview.get_path_at_pos(x, y)，使用随按钮按下事件发送的坐标。一旦有了路径，您就拥有了走得更远所需的一切。

这是一个完整的示例，请注意 mouse_click()

中的额外行

#!/usr/bin/env python3

from gi.repository import Gtk, GLib, Gio

class Test(Gtk.Window):
    def __init__(self):
        Gtk.Window.__init__(self)
        store = Gtk.ListStore(str)
        self.tree = Gtk.TreeView(store)
        for i in range(0,10):
            store.append(["test " + str(i)])
        self.connect("delete-event", Gtk.main_quit)
        self.tree.connect("button_press_event", self.mouse_click)

        renderer = Gtk.CellRendererText()
        column = Gtk.TreeViewColumn("Title", renderer, text=0)
        self.tree.append_column(column)
        self.add(self.tree)

    def mouse_click(self, tv, event):
        if event.button == 3:
            # Begin added code
            pthinfo = self.tree.get_path_at_pos(event.x, event.y)
            if pthinfo != None:
                path,col,cellx,celly = pthinfo
                self.tree.grab_focus()
                self.tree.set_cursor(path,col,0)
            # End added code

            selection = self.tree.get_selection()
            (model, iter) = selection.get_selected()
            print(model[iter][0])

win = Test()
win.show_all()
Gtk.main()