gtk treeview: place image buttons on rows

问题:

For each row in my treeview, I want 4 image buttons next to each other. They will act like radio buttons, with only one being activateable at a time. Each button has an 'on' and 'off' image.

How do I do this? I figured out how to put images there, and how to put togglebuttons, but this seems to require some more effort as there is no pre-built cellrenderer that does what I want.

Basically what'd solve my problem is figuring out how to make an image in a gtk.treeview clickable. any ideas?

回答1:

Have a look at this 'http://www.daa.com.au/pipermail/pygtk/2010-March/018355.html'. It shows you how to make a gtk.CellRendererPixbuf activatable, and able to connect to a click event signal.

cell = CellRendererPixbufXt()
cell.connect('clicked', func)

Update

As pointed out this answer, or the reference given doesn't work as advertised. It's missing the do_activate method, which needs to emit the clicked signal. Once it's done that, then the cell.connect will work.

Sorry if this answer mislead anyone.

回答2:

Here is a short version without kiwi requirement.

class CellRendererClickablePixbuf(gtk.CellRendererPixbuf):

    __gsignals__ = {'clicked': (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE,
                                (gobject.TYPE_STRING,))
                   }

    def __init__(self):
        gtk.CellRendererPixbuf.__init__(self)
        self.set_property('mode', gtk.CELL_RENDERER_MODE_ACTIVATABLE)

    def do_activate(self, event, widget, path, background_area, cell_area,
                    flags):
        self.emit('clicked', path)

回答3:

Here is what worked for me:

class CellRendererClickablePixbuf(gtk.CellRendererPixbuf):
    gsignal('clicked', str)
    def __init__(self):
        gtk.CellRendererPixbuf.__init__(self)
        self.set_property('mode', gtk.CELL_RENDERER_MODE_ACTIVATABLE)
    def do_activate(self, event, widget, path, background_area, cell_area, flags):
        self.emit('clicked', path)