如何在 pygtk2 中更改 "style property"

Question

GTK ComboBox 的样式为属性 "arrow-size" (link)。我想将它设置为 0.

遗憾的是，下一个代码段不起作用。未报告错误消息，箭头显示为默认大小 (=15)

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


def the_dialog():
    dialog = gtk.Dialog("Title", None, gtk.DIALOG_MODAL)
    liststore = gtk.ListStore(str)

    for a in ["one","two","three"]:
        liststore.append([a])

    rc_str = """
   style 'no_arrow_style' {
       GtkComboBox::arrow-size = 0
   }
   widget_class '*' style 'no_arrow_style'
   """
    gtk.rc_parse_string(rc_str)

    combo_box = gtk.ComboBox()
    cell = gtk.CellRendererText()
    combo_box.pack_start(cell)
    combo_box.add_attribute(cell, 'text', 0)
    combo_box.set_model(liststore)
    combo_box.get_cells()

    dialog.vbox.pack_start(combo_box)
    dialog.show_all()

    dialog.run()


the_dialog()

带有默认 "v" 形箭头的组合框：

Answer 1

GtkComboBox::arrow-size其实就是"minimum arrow size"。要查看差异，请将其设置为 100。示例片段确实有效。

如何在 pygtk2 中更改 "style property"

How to change "style property" in pygtk2

python

gtk

gtk2