On Thu, 2009-12-10 at 00:02 +0800, engine spot wrote:
> Hi John
> when I test your code ,I find that the button's height is
> ok,400px,but the width is fill
>
>
> when I change vb = gtk.VBox() to vb = gtk.HBox()
>
>
> run your code ,then the width is 100px, ok,but the height is fill
>
>
> is it true I need to use gtk's another object but not HBox and
> VBox?
> which object is ok?
import gtk
Window = gtk.Window(gtk.WINDOW_TOPLEVEL)
Button=gtk.Button("Hello")
hb = gtk.HBox()
vb = gtk.VBox()
hb.pack_start(vb, False, False)
vb.pack_start(Button, False, False)
Window.add(hb)
Button.set_border_width(0)
Button.set_size_request(100,400)
Window.set_default_size(200,600)
Window.show_all()
gtk.main()
HBox considers expand and fill pack parameters horizontally, and VBox
considers them vertically. So depending on your GUI you sometimes need
both.
But a simple button in a window is not the best way to learn how Gtk+
GUI packing works, it is not a real world case and will just continue to
confuse you.
I suggest using glade-3 to design some different GUIs, and experimenting
with the effect of expand and fill when packing widgets.
In general you should not set minimum/default size (this is not windows
forms). It is best to accomplish the GUI layout you want using the
correct application of packing rules, and correct uses of alignments and
sizegroups.
John
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