Re: Dialogs in middle of windows

[todd <toddf simosoftware com>]

Alex Buell wrote:

> On Tue, 7 Dec 2004, Todd Fisher wrote:
>
> [ snipped ]
>
> Thanks guys, that worked a treat!
>
> I had to make the parent window a static global so that the following 
> code could function properly:
>
> static void about(GtkWidget *w, gpointer data)
> {
>         gint x, y, pwidth, pheight, width, height;
>         GtkWidget *dialog, *label, *button;
>
>         dialog = gtk_dialog_new();
>         gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
>         gtk_window_set_transient_for(GTK_WINDOW(dialog), GTK_WINDOW(w));
>         gtk_window_set_keep_above(GTK_WINDOW(dialog), TRUE);
>
>         gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
>
>         label = gtk_label_new(ABOUT);
>         gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), label, 
> TRUE, TRUE, 0);
>         gtk_widget_show(label);
>
>         button = gtk_button_new_with_label("OK");
>         gtk_signal_connect(GTK_OBJECT(button), "clicked", 
> GTK_SIGNAL_FUNC(dismiss), dialog);
>         gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->action_area), 
> button, TRUE, TRUE, 0);
>         gtk_widget_show(button);
>
>         gtk_window_get_position(GTK_WINDOW(window), &x, &y);
>         gtk_window_get_size(GTK_WINDOW(window), &pwidth, &pheight);
>         gtk_window_get_size(GTK_WINDOW(dialog), &width, &height);
>
> #ifdef DEBUG
> printf("Parent position: %d, %d\n", x, y);
> printf("Parent size: %d, %d\nDialog size: %d, %d\n", pwidth, pheight, 
> width, height);
> #endif /* DEBUG */
>
>         x = (pwidth - width) / 2 + x;
>         y = (pheight - height) / 2 + y;
>
>         gtk_window_move(GTK_WINDOW(dialog), x, y);
>         gtk_widget_show(dialog);
> }
>
> Is there a better way to actually get the parent window parameters 
> without having to resort to a global GtkWindow variable?
>
> Cheers,
> Alex.

You could always use GObject properties.  So, when your app starts up
g_object_set_data( G_OBJECT( mydialogwidget ), "parent", parentwidget );

then in your dialog code to get the parent window
GtkWidget *parentwidget = (GtkWidget*)g_object_get_data( G_OBJECT( 
mydialogwidget ), "parent" );

-todd