Re: Re: GtkTreeView

[Iago Rubio <iago rubio hispalinux es>]

El lun, 01 de 03 de 2004 a las 04:21, Quag Mire escribiÃ:
> I use:
>
> gtk_widget_show_all(mainwindow);
>
> The TreeView widget itself is visible since I get the white background.

Ok, then it's almost sure you don't have a model in your treeview.

Attach a GtkTreeModel matching your columns layout and you'll see the
headers.

Don't ask me why, but empty treeviews don't show the column headers ( at
least it's my experience ).

As example try this code, and once you see the header, comment out the
store initiallization and change the treeview constructor to
gtk_tree_view_new().

You will see it dissapearing.

//-----------------------------------------------------------------------

 #include <gtk/gtk.h>

GtkWidget*
create_window (void);

int
main (int argc, char *argv[])
{
  GtkWidget *window;

  gtk_init (&argc, &argv);

  window = create_window ();
  gtk_widget_show (window);

  gtk_main ();
  return 0;
}

GtkWidget*
create_window (void)
{
  GtkWidget *window;
  GtkWidget *scrolledwindow;
  GtkWidget *treeview;
  GtkTreeViewColumn *column;
  GtkCellRenderer* renderer;
  GtkTreeStore* store;

  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  gtk_window_set_title (GTK_WINDOW (window), "window");

  scrolledwindow = gtk_scrolled_window_new (NULL, NULL);
  gtk_widget_show (scrolledwindow);
  gtk_container_add (GTK_CONTAINER (window), scrolledwindow);

  store = gtk_tree_store_new(1, G_TYPE_STRING);

  treeview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store));
  gtk_widget_show (treeview);
  gtk_container_add (GTK_CONTAINER (scrolledwindow), treeview);

  column = gtk_tree_view_column_new();
  renderer = gtk_cell_renderer_text_new();
                                                
  gtk_tree_view_column_set_title  (column, "Test header");
  gtk_tree_view_column_pack_start (column,renderer, TRUE);      
  gtk_tree_view_column_set_attributes  (column, renderer, "text",
                                        1, NULL);                       
  gtk_tree_view_column_set_resizable(column, TRUE);
  gtk_tree_view_append_column(GTK_TREE_VIEW (treeview), column);

  g_signal_connect ((gpointer) window, "delete_event",
                    G_CALLBACK (gtk_main_quit),
                    NULL);

  return window;
}

//---------------------------------------------------------------------------

compile with:

gcc -c `pkg-config --cflags gtk+-2.0` code.c
gcc `pkg-config --libs gtk+-2.0` code.o -o test

You can also compile with a single command line if it's your preference.


Hope this helps
-- 
Iago Rubio                http://www.iagorubio.com          
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