Hi.
I want a label to act as a placeholder,the size of which can be specified
Here is the picture:
A label,along with some other gtk.Widgets,will be put in a
gtk.ScrolledWindow,which then be added into a gtk.Window.
When the gtk.Window first shows,the size of label and scrolledWindow can be
specified to certain value.But this is not the minimum one,that
is,scrolledWindow won't prevent the gtk.Window from being resized to a
smaller value.
Something like(In Python):
##############################
import gtk
class Example:
def __init__(self):
window = gtk.Window()
scrolledWindow = gtk.ScrolledWindow()
vbox = gtk.VBox()
label = gtk.Label("example")
vbox.pack_start(label)
scrolledWindow.add_with_viewport(vbox)
window.add(scrolledWindow)
window.connect("destroy", lambda w: gtk.main_quit())
window.show_all()
if __name__ == "__main__":
example = Example()
gtk.main()
########################
I would try the hack to see if it works for this.
On Sat, Aug 8, 2009 at 10:37 PM, Tristan Van Berkom <[email protected]> wrote:
> On Fri, Aug 7, 2009 at 9:54 PM, cbx<[email protected]> wrote:
> > Thank you,for your kind and your example!
> > In Python,gtk.Widget.get_allocation() and gtk.Windget.allocation(as an
> > attribute) return the same gtk.gdk.Rectange,which indeed is the actual
> size.
> > So i guess get the size is a solved problem now.
> >
> > What i need about setting the size of the widget is not about the minimum
> > one.It more like setting the 'allocation' size and not to prevent the
> widget
> > from resizing to a smaller size by the user manually.
> > Maybe it's not clear,but i don't know how to explain myself better.
>
> What exactly do you need the label to do when it resizes ?
>
> Currently in GTK+ the size of text is what defines the minimum
> size of your interface, labels float within the space they were
> allocated, using the alignment and padding rules.
>
> I have seen hacks along the lines of:
>
> gtk_widget_set_size_request (widget, default_width, default_height);
> gtk_widget_show_all (toplevel);
> gtk_widget_set_size_request (widget, -1, -1);
>
> i.e. a way to trick the hierarchy into realizing the specified widget
> at a certain size, and then remove the constraint afterwords.
> (Im not sure how well this works, it may break for instance if
> gtk_container_check_resize() is called in the wrong place).
>
> GtkLabels that dynamically wordwrap or ellipsize also dont come
> for free (someone please correct me if Im wrong about that, I'd
> like to know), i.e. tricks need to be played to synchronize the
> label's size request to a size relative to the label's parent's allocation.
>
> Cheers,
> -Tristan
>
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