Re: Conversion GtkCTree in GTK 1.2 to GtkTreeView in GTK 2

[Arno <dark-arno ifrance com>]

Shahms E. King wrote:

> > So if I understand good, it's imppossible to have a dot line. I can't 
> > modify the animation with the triangle :(
>
> Yes, from what I remember it's not possible to modify this without a lot
> of work and it was, indeed, a design decision.
> Here's how it should look (or something similar):
>
> renderer = gtk_cell_renderer_pixbuf_new ();
> column = gtk_tree_view_column_new ()
> gtk_tree_view_column_set_title (column, "Author");
> gtk_tree_view_column_add_attribute (column, renderer, "pixbuf",
>                                    PIXBUF_COLUM);
> /* the pixbuf_expander_{open|closed} aren't necessary unless you want
>   them to be different */
> gtk_tree_view_column_pack_start (column, renderer, FALSE);
> renderer = gtk_cell_renderer_text_new ();
> gtk_tree_view_column_add_attribute (column, renderer, "text",
> AUTHOR_COLUMN);
> gtk_tree_view_column_pack_start (column, renderer, TRUE);
>
> gtk_tree_view_append_column (GTK_TREE_VIEW (tree), column);
>
> that should do what you want, I'm not certain about the TRUE/FALSE in
> there, in theory they control the amount of space allocated to the
> CellRenderer, but I haven't actually seen it make a difference.
Thank you for this answer but I have a problem with my short test. When 
I launch my program, I have the messages :

(tree:518): Gtk-CRITICAL **: file gtktreeviewcolumn.c: line 1271 
(gtk_tree_view_column_add_attribute): assertion `info != NULL' failed

(tree:518): Gtk-CRITICAL **: file gtktreeviewcolumn.c: line 1271 
(gtk_tree_view_column_add_attribute): assertion `info != NULL' failed

(tree:518): Gtk-WARNING **: 
gtktreestore.c:949:gtk_tree_store_set_valist(): Invalid column number 2 
added to iter (remember to end your list of columns with a -1)

And I have a white window :(. I join you my source if you could see it.

Thank you
Arno

#include <gtk/gtk.h>

enum
{
  PROTOCOL_COLUMN,
  DATA_COLUMN,
  ICONE_COLUMN,
};

GtkWidget*
create_mainwin (void)
{
 GtkWidget *mainwin;
 GtkTreeStore *store;
 GtkWidget *tree;
 GtkTreeViewColumn *column;
 GtkCellRenderer *renderer;
 GtkTreeIter iter;
 GdkPixbuf *pixbuf;

 /* mainwin */
 mainwin = gtk_window_new (GTK_WINDOW_TOPLEVEL);
 gtk_window_set_title (GTK_WINDOW (mainwin), "Tree GTK 2.0");
 gtk_object_set_data (GTK_OBJECT (mainwin), "mainwin", mainwin);
 gtk_widget_set_usize (mainwin, 500, 250);
 gtk_signal_connect (GTK_OBJECT (mainwin), "delete_event",
                     GTK_SIGNAL_FUNC (gtk_main_quit), NULL);
 gtk_signal_connect (GTK_OBJECT (mainwin), "destroy",
                     GTK_SIGNAL_FUNC (gtk_main_quit), NULL);


 store = gtk_tree_store_new (2, G_TYPE_STRING, G_TYPE_STRING);
 tree = gtk_tree_view_new_with_model (GTK_TREE_MODEL (store));
 g_object_unref (G_OBJECT (store));

 /* Create the first colum with the pixmap and the text */
 column = gtk_tree_view_column_new ();
 renderer = gtk_cell_renderer_pixbuf_new ();
 gtk_tree_view_column_set_title (column, "Protocol");
 gtk_tree_view_column_add_attribute (column, renderer,
                     "pixbuf", ICONE_COLUMN);
 gtk_tree_view_column_pack_start (column, renderer, FALSE);
 renderer = gtk_cell_renderer_text_new ();
 gtk_tree_view_column_add_attribute (column, renderer,
                     "text", PROTOCOL_COLUMN);
 gtk_tree_view_column_pack_start (column, renderer, TRUE);
 gtk_tree_view_append_column (GTK_TREE_VIEW (tree), column);

 /* Second column... */
 renderer = gtk_cell_renderer_text_new ();
 column = gtk_tree_view_column_new_with_attributes ("Data send",
                            renderer,
                            "text", DATA_COLUMN,
                            NULL);
 gtk_tree_view_append_column (GTK_TREE_VIEW (tree), column);

 /* Insert data */
 pixbuf = gdk_pixbuf_new_from_file("pc.xpm", NULL);
 gtk_tree_store_append (store, &iter, NULL);
 gtk_tree_store_set (store, &iter,
             PROTOCOL_COLUMN, "Frame 1",
             ICONE_COLUMN, pixbuf,
             -1);

 /* Apperance */
 gtk_tree_view_columns_autosize (GTK_TREE_VIEW (tree));
 gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (tree), FALSE);
 gtk_widget_show (tree);

 gtk_container_add (GTK_CONTAINER (mainwin), tree);

 return mainwin;
}

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

 gtk_set_locale ();
 gtk_init (&argc, &argv);

 mainwin = create_mainwin ();
 gtk_widget_show (mainwin);

 gtk_main ();
 return 0;
}




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