Re: Tooltips for Gtk::TreeView rows

[Simon Fuhrmann <NightSlayer gmx de>]

> It sounds like it. It would need a simple test case in C though, to be
> filed as a bug.

Attached, but very dirty. Copied an example and modified it.
gcc treeview_get_path_at_pos.c `pkg-config --cflags --libs gtk+-2.0`

Simon

/* 
 * Compile with:
 *  gcc -o helloworld helloworld.c `pkg-config --cflags --libs gtk+-2.0`
 *
 */

#include <gtk/gtk.h>

enum
{
  COL_NAME = 0,
  COL_AGE,
  NUM_COLS
} ;


static GtkTreeModel *
create_and_fill_model (void)
{
  GtkListStore  *store;
  GtkTreeIter    iter;
  
  store = gtk_list_store_new (NUM_COLS, G_TYPE_STRING, G_TYPE_UINT);

  /* Append a row and fill in some data */
  gtk_list_store_append (store, &iter);
  gtk_list_store_set (store, &iter,
                      COL_NAME, "Heinz El-Mann",
                      COL_AGE, 51,
                      -1);
  
  /* append another row and fill in some data */
  gtk_list_store_append (store, &iter);
  gtk_list_store_set (store, &iter,
                      COL_NAME, "Jane Doe",
                      COL_AGE, 23,
                      -1);
  
  /* ... and a third row */
  gtk_list_store_append (store, &iter);
  gtk_list_store_set (store, &iter,
                      COL_NAME, "Joe Bungop",
                      COL_AGE, 91,
                      -1);
  
  return GTK_TREE_MODEL (store);
}

static GtkWidget *
create_view_and_model (void)
{
  GtkCellRenderer     *renderer;
  GtkTreeModel        *model;
  GtkWidget           *view;

  view = gtk_tree_view_new ();

  /* --- Column #1 --- */

  renderer = gtk_cell_renderer_text_new ();
  gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (view),
                                               -1,      
                                               "Name",  
                                               renderer,
                                               "text", COL_NAME,
                                               NULL);

  /* --- Column #2 --- */

  renderer = gtk_cell_renderer_text_new ();
  gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (view),
                                               -1,      
                                               "Age",  
                                               renderer,
                                               "text", COL_AGE,
                                               NULL);

  model = create_and_fill_model ();

  gtk_tree_view_set_model (GTK_TREE_VIEW (view), model);

  /* The tree view has acquired its own reference to the
   *  model, so we can drop ours. That way the model will
   *  be freed automatically when the tree view is destroyed */

  g_object_unref (model);

  return view;
}

gboolean
query_tooltip (GtkWidget  *widget, gint x, gint y, gboolean keyboard_mode,
    GtkTooltip *tooltip, gpointer user_data)
{
  GtkTreePath* path;
  GtkTreePath* path2;
  GtkTreeViewDropPosition pos;
  GtkTreeViewColumn* col;
  gint cx, cy;

  gtk_tree_view_get_path_at_pos((GtkTreeView*)widget, x, y, &path,
      &col, &cx, &cy);

  gtk_tree_view_get_dest_row_at_pos((GtkTreeView*)widget, x, y, &path2, &pos);

  printf("INFO: get_path_at_pos: %s -- get_dest_row_at_pos: %s\n",
      (path == NULL ? "NULL" : gtk_tree_path_to_string(path)),
      (path2 == NULL ? "NULL" : gtk_tree_path_to_string(path2)));

  gtk_tooltip_set_text(tooltip, "Testing");

  return TRUE;
}

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

  gtk_init (&argc, &argv);

  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  g_signal_connect (window, "delete_event", gtk_main_quit, NULL); /* dirty */

  view = create_view_and_model ();


  /* TESTING CODE */
  gtk_widget_set_has_tooltip(view, TRUE);
  g_signal_connect (view, "query-tooltip", query_tooltip, NULL);


  gtk_container_add (GTK_CONTAINER (window), view);

  gtk_widget_show_all (window);

  gtk_main ();

  return 0;
}