Re: [gtk-list] dialog

[Tim Janik <timj gtk org>]

On Sat, 10 Oct 1998, Pauli Virtanen wrote:

> Two days ago
> 
> I asked:
> 
> >I have some ten dialogs, too.
> >They work separately just perfect,
> >when the dialog is created by gtk_dialog_new();
> 
> >What I want, is to have a dialog on my scrolled window
> >without window manager decoration. Just like this:
> 
> 	-------------------------------------------------
>         |         scrolled window                       |
>         |                                               |
>         |       ---------------------------------       |
>         |       |       dialog                  |       |
>         |       |                               |       |
>         |       ---------------------------------       |
>         |                                               |
>         -------------------------------------------------
> 
> >I want to pop them up by pulldown menu calls.
> Now I have what I wwant, but still one problem remains:
> ** WARNING **: file gtkcontainer.c: line 346 (gtk_container_add): "widget->parent == NULL"
> The essentials are:
> void luo_dialogi(
> GtkWidget *isa)		// isa = top_level_window
> {
>     GtkWidget *vbox;
>     GtkWidget *table, *hbox;
> 
>     dialog = gtk_dialog_new();
>     dialog->parent = isa;

oh, oh, don't ever do this!
widget contents are never write-access fields!
also a toplevel *must* have its ->parent pointer set to NULL and
can not get added to another container (it is a *toplevel* widget).

>     gtk_container_border_width(GTK_CONTAINER(dialog), 5);
> [snip]
>     gtk_widget_realize(dialog);
>     gtk_widget_reparent(dialog, scroll);	// scroll  public
> }
> To get just what I want, I must reparent to scrolled window.
> Everything works just fine, but I don't like that warning message.
> Could someone with more experience help me.

what you want is something like (off head):

GtkWidget*
popup_sole_dialog (gchar *string)
{
  GtkWidget *window;
  GtkWidget *vbox;
  GtkWidget *label;
  
  g_return_val_if_fail (string != NULL, NULL);
  
  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  vbox = gtk_vbox_new (FALSE, 5);
  label = gtk_label_new (string);
  gtk_container_add (GTK_CONTAINER (vbox), label);
  gtk_container_add (GTK_CONTAINER (window), vbox);
  gtk_widget_show (label);
  gtk_widget_show (vbox);
  gtk_widget_show (window);
  
  return window;
}

GtkWidget*
add_contained_dialog (gchar *string,
                      GtkWidget *parent /* e.g. a scrolled window */)
{
  GtkWidget *window;
  GtkWidget *vbox;
  GtkWidget *label;

  g_return_val_if_fail (string != NULL, NULL);
  g_return_val_if_fail (parent != NULL, NULL);
  g_return_val_if_fail (GTK_IS_CONTAINER (parent), NULL);
  
  vbox = gtk_vbox_new (FALSE, 5);
  label = gtk_label_new (string);
  gtk_container_add (GTK_CONTAINER (vbox), label);
  gtk_container_add (GTK_CONTAINER (parent), label);
  gtk_widget_show (label);
  gtk_widget_show (vbox);
}

void
embed_dialog (GtkWidget *window /* e.g. a dialog from popup_sole_dialog() */,
              GtkWidget *parent /* e.g. a scrolled window */)
{
  GtkWidget *child;
  
  g_return_val_if_fail (window != NULL, NULL);
  g_return_val_if_fail (GTK_IS_WINDOW (window), NULL);
  g_return_val_if_fail (parent != NULL, NULL);
  g_return_val_if_fail (GTK_IS_CONTAINER (parent), NULL);
  
  child = GTK_BIN (window)->child;
  if (child)
    gtk_widget_reparent (child, parent);
  
  gtk_widget_destroy (window);
}


> 
> Thanks in advance
> 
> pauli
> 

---
ciaoTJ