如何更改 Gtk3 StackSwitcher 控件的对齐方式

Question

I'd like to use a Gtk3 Stack Switcher as my layout container and was just wondering if it is,by any means,possible to change the control buttons' alignment to say VERTICAL because by default they are shown in a row and they are horizontally aligned

PS:I want to change the alignment of the controls themselves not the contents of the stack

Answer 1

Yes, it is possible. Gtk.StackSwitcher implements the Gtk.Orientable interface and inherits from Gtk.Box

If using glade , there is a combobox in the widget General attributes tab which allows choosing the orientation.

You can also do it programmatically, using the Gtk.Orientable method set_orientation :

...    
stack_switcher = Gtk.StackSwitcher()
stack_switcher.set_stack(stack)
stack_switcher.set_orientation(Gtk.Orientation.VERTICAL)
...

Let's take the Python Gtk+ 3 Stack and StackSwitcher tutorial example and change the stack switcher orientation:

import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk

class StackWindow(Gtk.Window):

    def __init__(self):
        Gtk.Window.__init__(self, title="Stack Demo")
        self.set_border_width(10)

        vbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=6)
        self.add(vbox)

        stack = Gtk.Stack()
        stack.set_transition_type(Gtk.StackTransitionType.SLIDE_LEFT_RIGHT)
        stack.set_transition_duration(1000)

        checkbutton = Gtk.CheckButton("Click me!")
        stack.add_titled(checkbutton, "check", "Check Button")

        label = Gtk.Label()
        label.set_markup("<big>A fancy label</big>")
        stack.add_titled(label, "label", "A label")

        stack_switcher = Gtk.StackSwitcher()
        stack_switcher.set_stack(stack)
        stack_switcher.set_orientation(Gtk.Orientation.VERTICAL)
        vbox.pack_start(stack_switcher, True, True, 0)
        vbox.pack_start(stack, True, True, 0)

win = StackWindow()
win.connect("delete-event", Gtk.main_quit)
win.show_all()
Gtk.main()

The expected result is:

a vertical Gtk.StackSwitcher.

Answer 2

@Jose Fonte，谢谢兄弟......我接受了你的建议并尝试使用它，但过了一会儿，我发现了其他更容易解决我的问题的东西。一个Gtk.StackSideBar 。所以我最终使用它作为这正是我所追求的