/**
* gtk_tree_selection_get_selected:
* @selection: A #GtkTreeSelection.
- * @model: A pointer set to the #GtkTreeModel, or NULL.
+ * @model: A pointer to set to the #GtkTreeModel, or NULL.
* @iter: The #GtkTreeIter, or NULL.
*
* Sets @iter to the currently selected node if @selection is set to
return retval;
}
+/**
+ * gtk_tree_selection_get_selected_rows:
+ * @selection: A #GtkTreeSelection.
+ * @model: A pointer to set to the #GtkTreeModel, or NULL.
+ *
+ * Creates a list of path of all selected rows. Additionally, if you are
+ * planning on modifying the model after calling this function, you may
+ * want to convert the returned list into a list of #GtkTreeRowReferences.
+ * To do this, you can use gtk_tree_row_reference_new_proxy().
+ *
+ * To free the return value, use:
+ * <informalexample><programlisting>
+ * g_list_foreach (list, gtk_tree_path_free, NULL);
+ * g_list_free (list);
+ * </programlisting></informalexample>
+ *
+ * Return value: A #GList containing a #GtkTreePath for each selected row.
+ **/
+GList *
+gtk_tree_selection_get_selected_rows (GtkTreeSelection *selection,
+ GtkTreeModel **model)
+{
+ GList *list = NULL;
+ GtkRBTree *tree = NULL;
+ GtkRBNode *node = NULL;
+ GtkTreePath *path;
+
+ g_return_val_if_fail (GTK_IS_TREE_SELECTION (selection), NULL);
+ g_return_val_if_fail (selection->tree_view != NULL, NULL);
+ g_return_val_if_fail (selection->tree_view->priv->model != NULL, NULL);
+
+ if (selection->tree_view->priv->tree == NULL ||
+ selection->tree_view->priv->tree->root == NULL)
+ return NULL;
+
+ if (model)
+ *model = selection->tree_view->priv->model;
+
+ if (selection->type == GTK_SELECTION_NONE)
+ return NULL;
+ else if (selection->type != GTK_SELECTION_MULTIPLE)
+ {
+ GtkTreeIter iter;
+
+ if (gtk_tree_selection_get_selected (selection, NULL, &iter))
+ {
+ GtkTreePath *path;
+
+ path = gtk_tree_model_get_path (*model, &iter);
+ list = g_list_append (list, path);
+
+ return list;
+ }
+
+ return NULL;
+ }
+
+ tree = selection->tree_view->priv->tree;
+ node = selection->tree_view->priv->tree->root;
+
+ while (node->left != tree->nil)
+ node = node->left;
+ path = gtk_tree_path_new_first ();
+
+ do
+ {
+ if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
+ list = g_list_append (list, gtk_tree_path_copy (path));
+
+ if (node->children)
+ {
+ tree = node->children;
+ node = tree->root;
+
+ while (node->left != tree->nil)
+ node = node->left;
+
+ gtk_tree_path_append_index (path, 0);
+ }
+ else
+ {
+ gboolean done = FALSE;
+
+ do
+ {
+ node = _gtk_rbtree_next (tree, node);
+ if (node != NULL)
+ {
+ done = TRUE;
+ gtk_tree_path_next (path);
+ }
+ else
+ {
+ node = tree->parent_node;
+ tree = tree->parent_tree;
+
+ if (!tree)
+ {
+ gtk_tree_path_free (path);
+ return list;
+ }
+
+ gtk_tree_path_up (path);
+ }
+ }
+ while (!done);
+ }
+ }
+ while (TRUE);
+
+ gtk_tree_path_free (path);
+
+ return list;
+}
+
+static void
+gtk_tree_selection_count_selected_rows_helper (GtkRBTree *tree,
+ GtkRBNode *node,
+ gpointer data)
+{
+ gint *count = (gint *)data;
+
+ if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
+ (*count)++;
+
+ if (node->children)
+ _gtk_rbtree_traverse (node->children, node->children->root,
+ G_PRE_ORDER,
+ gtk_tree_selection_count_selected_rows_helper, data);
+}
+
+/**
+ * gtk_tree_selection_count_selected_rows:
+ * @selection: A #GtkTreeSelection.
+ *
+ * Returns the number of rows that have been selected in @tree.
+ *
+ * Return value: The number of rows selected.
+ **/
+gint
+gtk_tree_selection_count_selected_rows (GtkTreeSelection *selection)
+{
+ gint count = 0;
+ GtkRBTree *tree;
+ GtkRBNode *node;
+
+ g_return_val_if_fail (GTK_IS_TREE_SELECTION (selection), 0);
+ g_return_val_if_fail (selection->tree_view != NULL, 0);
+ g_return_val_if_fail (selection->tree_view->priv->model != NULL, 0);
+
+ if (selection->tree_view->priv->tree == NULL ||
+ selection->tree_view->priv->tree->root == NULL)
+ return 0;
+
+ if (selection->type == GTK_SELECTION_SINGLE ||
+ selection->type == GTK_SELECTION_BROWSE)
+ {
+ if (gtk_tree_selection_get_selected (selection, NULL, NULL))
+ return 1;
+ else
+ return 0;
+ }
+
+ tree = selection->tree_view->priv->tree;
+ node = selection->tree_view->priv->tree->root;
+
+ _gtk_rbtree_traverse (selection->tree_view->priv->tree,
+ selection->tree_view->priv->tree->root,
+ G_PRE_ORDER,
+ gtk_tree_selection_count_selected_rows_helper,
+ &count);
+
+ return count;
+}
+
/**
* gtk_tree_selection_selected_foreach:
* @selection: A #GtkTreeSelection.
* @func: The function to call for each selected node.
* @data: user data to pass to the function.
*
- * Calls a function for each selected node.
+ * Calls a function for each selected node. Note that you cannot modify
+ * the tree or selection from within this function. As a result,
+ * gtk_tree_selection_get_selected_rows() might be more useful.
**/
void
gtk_tree_selection_selected_foreach (GtkTreeSelection *selection,
* @selection: A #GtkTreeSelection
* @iter: A valid #GtkTreeIter
*
- * Returns %TRUE if the row pointed to by @path is currently selected.
+ * Returns %TRUE if the row at @iter is currently selected.
*
* Return value: %TRUE, if @iter is selected
**/
g_signal_emit (G_OBJECT (selection), tree_selection_signals[CHANGED], 0);
}
+enum
+{
+ RANGE_SELECT,
+ RANGE_UNSELECT
+};
+
static gint
-gtk_tree_selection_real_select_range (GtkTreeSelection *selection,
+gtk_tree_selection_real_modify_range (GtkTreeSelection *selection,
+ gint mode,
GtkTreePath *start_path,
GtkTreePath *end_path)
{
do
{
- dirty |= gtk_tree_selection_real_select_node (selection, start_tree, start_node, TRUE);
+ dirty |= gtk_tree_selection_real_select_node (selection, start_tree, start_node, (mode == RANGE_SELECT)?TRUE:FALSE);
if (start_node == end_node)
break;
g_return_if_fail (GTK_IS_TREE_SELECTION (selection));
g_return_if_fail (selection->tree_view != NULL);
- if (gtk_tree_selection_real_select_range (selection, start_path, end_path))
+ if (gtk_tree_selection_real_modify_range (selection, RANGE_SELECT, start_path, end_path))
+ g_signal_emit (G_OBJECT (selection), tree_selection_signals[CHANGED], 0);
+}
+
+/**
+ * gtk_tree_selection_unselect_range:
+ * @selection: A #GtkTreeSelection.
+ * @start_path: The initial node of the range.
+ * @end_path: The initial node of the range.
+ *
+ * Unselects a range of nodes, determined by @start_path and @end_path
+ * inclusive.
+ **/
+void
+gtk_tree_selection_unselect_range (GtkTreeSelection *selection,
+ GtkTreePath *start_path,
+ GtkTreePath *end_path)
+{
+ g_return_if_fail (GTK_IS_TREE_SELECTION (selection));
+ g_return_if_fail (selection->tree_view != NULL);
+
+ if (gtk_tree_selection_real_modify_range (selection, RANGE_UNSELECT, start_path, end_path))
g_signal_emit (G_OBJECT (selection), tree_selection_signals[CHANGED], 0);
}
else if ((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
{
dirty = gtk_tree_selection_real_unselect_all (selection);
- dirty |= gtk_tree_selection_real_select_range (selection,
+ dirty |= gtk_tree_selection_real_modify_range (selection,
+ RANGE_SELECT,
anchor_path,
path);
}
projects / ~andy / gtk / blobdiff