Re: Center align labels in container using label top as reference

[Vikram Noel Ambrose <noel ambrose gmail com>]

David Nečas wrote:
> On Sun, Jan 03, 2010 at 04:46:31PM -0500, Vikram Noel Ambrose wrote:
>   
> > I added each label to their own vbox
> >     
>
> I said size group, not vbox.
>
> Note that the on_size_allocate_tadeboro_hack() hack is utter crap and it
> makes the widget (or some parent container) to get stuck in a resizing
> and allocation loop and eat 100% cpu if you resize it below certain
> size.
>
> Yeti
>
>
> --- label-valign.c.orig	2010-01-03 23:27:31.000000000 +0100
> +++ label-valign.c	2010-01-03 23:36:12.251769040 +0100
> @@ -23,20 +23,26 @@
>  	/* Create an empty button */
>  	GtkWidget *button = gtk_button_new();
>  
> +	GtkWidget *alignment = gtk_alignment_new(0.5,0.5,1.0,0.0);
> +	gtk_container_add(GTK_CONTAINER(button),alignment);	
>  	/* Add a horizontal box as the button's child */
>  	GtkWidget *button_hbox = gtk_hbox_new(FALSE,0);
> -	gtk_container_add(GTK_CONTAINER(button),button_hbox);	
> +	gtk_container_add(GTK_CONTAINER(alignment),button_hbox);	
>  
> +	GtkSizeGroup *sizegroup = gtk_size_group_new(GTK_SIZE_GROUP_VERTICAL);
>  	/* Create the left label */
>  	GtkWidget *left_label = gtk_label_new(
>  			"<b>This is a really long label that should wrap at least once</b>");
> -	gtk_misc_set_alignment(GTK_MISC(left_label),0,0.5);
> +	gtk_misc_set_alignment(GTK_MISC(left_label),0,0.0);
>  	gtk_label_set_line_wrap(GTK_LABEL(left_label),TRUE);
>  	gtk_label_set_use_markup(GTK_LABEL(left_label),TRUE);
> +	gtk_size_group_add_widget(sizegroup, left_label);
>  
>  	/* Create the right label */
>  	GtkWidget *right_label = gtk_label_new("Small Label");
> -	gtk_misc_set_alignment(GTK_MISC(right_label),1,0.5);
> +	gtk_misc_set_alignment(GTK_MISC(right_label),1,0.0);
> +	gtk_size_group_add_widget(sizegroup, right_label);
> +	g_object_unref(sizegroup);
>  
>  	/* GtkLabel Line Wrap Hack - GTK SUCKS! */
>  	g_signal_connect( G_OBJECT( left_label ), "size-allocate",
>
>   

Thanks. Thats exactly what I was trying to get at.

I hate hacks as much as the next person, but how do I get the GtkLabel 
to line-wrap "dynamically" (if thats the right term for it) without that 
"size-allocate" hack?

thanks again.

Vikram.