Re: [gtk-list] Re: GTK_ImLib and resizing of images

[Tim Janik <timj gimp org>]

On Wed, 4 Mar 1998, Andreas Tille wrote:

> On Wed, 4 Mar 1998, Tim Janik wrote:
> 
> > > with ImLib it is possible to resize the rendered pixmap when using
> > > the X library.  If the GTK library is used only enlarging is possible
> > > but no shrinking.  GDK refuses to move the mouse when trying to
> > > go inside the boundaries of the original image.  To verify this
> > > behaviour check the two first examples from the HTML tutorial of
> > > ImLib (X version versus GTK version).
> > > 
> > > When I asked the author he told me, that this is a Problem of GTK.
> > > Is there any clue to get the behaviour of the X version of ImLib?
> > 
> > if i uderstand your problem correctly, allow_shrink from
> > 
> > void  gtk_window_set_policy           (GtkWindow           *window,
> >                                        gint                 allow_shrink,
> >                                        gint                 allow_grow,
> >                                        gint                 auto_shrink);
> > is what you are looking for.
> To be more detailed I use only GDK, but not GTK in the program in question
> (as well as the ImLib example).  I tried
>     gdk_window_resize(mywindow, 1000, 1000)
> and later
>     gdk_window_resize(mywindow, 100, 100)
> but mywindow got its original size (pixmap of 640x480).  So there must be
> any flag which forbides shrinking also in GDK but a grep allow_shrink in
> the GDK sources failed.

ok, if you are taking the hard (GDK ;) way, you might want to take a look
at gtk/gtkwindow.c:gtk_window_set_hints, this function sets the window
manager hints according to allow_shrink, i.e. GDK_HINT_MIN_SIZE.

> Remark: I've started using GTK+ and at first I want to use the GDK stuff
>         because I'm porting a complete command-line driven program without
>         any menus and such stuff, so there is no need for GTK in this time.
>         Maybe I will add such functionality later.
> 
> Regards
> 
>           Andreas.
> 
> 

---
ciaoTJ