当用户单击TreeView中的单元格时,是否有一种有效的方法/方法来检索ListModel中所选单元格的列?还是没有诸如单元格之类的东西,当我调用get_selected()方法时,只能选择行并返回其treeiter /模型?
我想向用户展示一个数值矩阵,并允许他选择一列,然后将这些值绘制出来。
如果您手边有任何文档/示例,请随时分享:)
编辑:我试图做的是将列标题上的clicked事件连接到一个函数,该函数为我提供创建过程中在列文本中编码的列号。但这似乎不太正确。
如果有帮助,我可以创建一个最小的工作示例。
最佳答案
在GtkTreeView中访问“列”比乍一看要复杂一些。原因之一是,列实际上可以包含多个项目,即使它们被“打包”,也将显示为新列。
识别列的一种方法是为每个列分配一个sort_id,但这将使标题可点击,如果排序实际上不起作用,则这是不自然的。
我设计了这个(有点曲折)的方法:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# test_coord.py
#
# Copyright 2016 John Coppens <[email protected]>
#
# This program is free software```; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.
#
#
from gi.repository import Gtk
class MainWindow(Gtk.Window):
def __init__(self):
super(MainWindow, self).__init__()
self.connect("destroy", lambda x: Gtk.main_quit())
trview = Gtk.TreeView()
tstore = Gtk.ListStore(str, str, str)
renderer = Gtk.CellRendererText()
for i in range(3):
col = Gtk.TreeViewColumn("Col %d" % i, renderer, text = i)
col.colnr = i
trview.append_column(col)
trview.set_model(tstore)
trview.connect("button-press-event", self.on_pressed)
for i in range(0, 15, 3):
tstore.append((str(i), str(i+1), str(i+2)))
self.add(trview)
self.show_all()
def on_pressed(self, trview, event):
path, col, x, y = trview.get_path_at_pos(event.x, event.y)
print("Column = %d, Row = %s" % (col.colnr, path.to_string()))
def run(self):
Gtk.main()
def main(args):
mainwdw = MainWindow()
mainwdw.run()
return 0
if __name__ == '__main__':
import sys
sys.exit(main(sys.argv))
这里的技巧是使用
Python
提供的可能性将属性添加到现有类中。因此,我在每个列中添加了一个colnr
,并用它来标识单击的单元格。在C ++中,有必要使用set_data
和get_data
方法执行相同的操作(Python
中不可用)。关于python - Gtk3 + Pygobject在TreeView中选择列,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/38057144/