Question

考虑这个使用PyGtk和Hippo Canvas显示可点击文本标签的Python程序。单击文本标签会将其替换为包含标签文本的Hippo CanvasEntry小部件。

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

def textClicked(text, event, row):
    input = hippo.CanvasEntry()
    input.set_property('text', text.get_property('text'))
    parent = text.get_parent()
    parent.insert_after(input, text)
    parent.remove(text)

def main():
    canvas = hippo.Canvas()
    root = hippo.CanvasBox()
    canvas.set_root(root)

    text = hippo.CanvasText(text=u'Some text')
    text.connect('button-press-event', textClicked, text)
    root.append(text)

    window = gtk.Window()
    window.connect('destroy', lambda ignored: gtk.main_quit())
    window.add(canvas)

    canvas.show()
    window.show()

    gtk.main()

if __name__ == '__main__':
    main()

单击文本标签时创建的CanvasEntry如何在创建时自动聚焦？

Answer 1

在CanvasEntry下方，有一个常规的旧gtk.Entry，您需要在看到它后立即请求焦点。以下是textClicked函数的修改版本，它只执行以下操作：

def textClicked(text, event, row):
    input = hippo.CanvasEntry()
    input.set_property('text', text.get_property('text'))
    entry = input.get_property("widget")
    def grabit(widget):
        entry.grab_focus()
    entry.connect("realize", grabit)
    parent = text.get_parent()
    parent.insert_after(input, text)
    parent.remove(text)

以编程方式聚焦hippo.CanvasEntry？

1 个答案: