]> Pileus Git - ~andy/gtk/blobdiff - gtk/gtktreeselection.c
Add gdk_pixbuf_get_option.
[~andy/gtk] / gtk / gtktreeselection.c
index fe74d602ca7b3a8676de81ea4af1c3aa7f52c716..6174fc4789134daf95a4933e8ec886ed3aa9794d 100644 (file)
@@ -20,6 +20,7 @@
 #include "gtktreeselection.h"
 #include "gtktreeprivate.h"
 #include "gtkrbtree.h"
+#include "gtkmarshalers.h"
 #include "gtksignal.h"
 
 static void gtk_tree_selection_init              (GtkTreeSelection      *selection);
@@ -84,14 +85,14 @@ gtk_tree_selection_class_init (GtkTreeSelectionClass *class)
                    GTK_RUN_FIRST,
                    GTK_CLASS_TYPE (object_class),
                    GTK_SIGNAL_OFFSET (GtkTreeSelectionClass, changed),
-                   gtk_marshal_VOID__VOID,
+                   _gtk_marshal_VOID__VOID,
                    GTK_TYPE_NONE, 0);
 }
 
 static void
 gtk_tree_selection_init (GtkTreeSelection *selection)
 {
-  selection->type = GTK_TREE_SELECTION_SINGLE;
+  selection->type = GTK_SELECTION_SINGLE;
 }
 
 static void
@@ -169,28 +170,40 @@ _gtk_tree_selection_set_tree_view (GtkTreeSelection *selection,
  * @type: The selection mode
  *
  * Sets the selection mode of the @selection.  If the previous type was
- * #GTK_TREE_SELECTION_MULTI and @type is #GTK_TREE_SELECTION_SINGLE, then
- * the anchor is kept selected, if it was previously selected.
+ * #GTK_SELECTION_MULTIPLE, then the anchor is kept selected, if it was
+ * previously selected.
  **/
 void
-gtk_tree_selection_set_mode (GtkTreeSelection     *selection,
-                            GtkTreeSelectionMode  type)
+gtk_tree_selection_set_mode (GtkTreeSelection *selection,
+                            GtkSelectionMode  type)
 {
+  GtkTreeSelectionFunc tmp_func;
   g_return_if_fail (GTK_IS_TREE_SELECTION (selection));
 
   if (selection->type == type)
     return;
 
-  if (type == GTK_TREE_SELECTION_SINGLE)
+  
+  if (type == GTK_SELECTION_NONE)
+    {
+      gtk_tree_row_reference_free (selection->tree_view->priv->anchor);
+      /* We do this so that we unconditionally unset all rows
+       */
+      tmp_func = selection->user_func;
+      selection->user_func = NULL;
+      gtk_tree_selection_unselect_all (selection);
+      selection->user_func = tmp_func;
+    }
+  else if (type == GTK_SELECTION_SINGLE ||
+          type == GTK_SELECTION_BROWSE)
     {
       GtkRBTree *tree = NULL;
       GtkRBNode *node = NULL;
       gint selected = FALSE;
+      GtkTreePath *anchor_path = NULL;
 
       if (selection->tree_view->priv->anchor)
        {
-          GtkTreePath *anchor_path;
-
           anchor_path = gtk_tree_row_reference_get_path (selection->tree_view->priv->anchor);
 
           if (anchor_path)
@@ -202,19 +215,26 @@ gtk_tree_selection_set_mode (GtkTreeSelection     *selection,
 
               if (node && GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
                 selected = TRUE;
-
-              gtk_tree_path_free (anchor_path);
             }
        }
-      /* FIXME: if user_func is set, then it needs to unconditionally unselect
-       * all.
+
+      /* We do this so that we unconditionally unset all rows
        */
+      tmp_func = selection->user_func;
+      selection->user_func = NULL;
       gtk_tree_selection_unselect_all (selection);
+      selection->user_func = tmp_func;
 
-      /* FIXME are we properly emitting the selection_changed signal here? */
       if (node && selected)
-       GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SELECTED);
+       _gtk_tree_selection_internal_select_node (selection,
+                                                 node,
+                                                 tree,
+                                                 anchor_path,
+                                                 0);
+      if (anchor_path)
+       gtk_tree_path_free (anchor_path);
     }
+
   selection->type = type;
 }
 
@@ -227,10 +247,10 @@ gtk_tree_selection_set_mode (GtkTreeSelection     *selection,
  *
  * Return value: the current selection mode
  **/
-GtkTreeSelectionMode
+GtkSelectionMode
 gtk_tree_selection_get_mode (GtkTreeSelection *selection)
 {
-  g_return_val_if_fail (GTK_IS_TREE_SELECTION (selection), GTK_TREE_SELECTION_SINGLE);
+  g_return_val_if_fail (GTK_IS_TREE_SELECTION (selection), GTK_SELECTION_SINGLE);
 
   return selection->type;
 }
@@ -244,6 +264,8 @@ gtk_tree_selection_get_mode (GtkTreeSelection *selection)
  *
  * Sets the selection function.  If set, this function is called before any node
  * is selected or unselected, giving some control over which nodes are selected.
+ * The select function should return %TRUE if the state of the node may be toggled,
+ * and %FALSE if the state of the node should be left unchanged.
  **/
 void
 gtk_tree_selection_set_select_function (GtkTreeSelection     *selection,
@@ -275,7 +297,15 @@ gtk_tree_selection_get_user_data (GtkTreeSelection *selection)
   return selection->user_data;
 }
 
-GtkTreeView*
+/**
+ * gtk_tree_selection_get_tree_view:
+ * @selection: A #GtkTreeSelection
+ * 
+ * Returns the tree view associated with @selection.
+ * 
+ * Return value: A #GtkTreeView
+ **/
+GtkTreeView *
 gtk_tree_selection_get_tree_view (GtkTreeSelection *selection)
 {
   g_return_val_if_fail (GTK_IS_TREE_SELECTION (selection), NULL);
@@ -290,10 +320,10 @@ gtk_tree_selection_get_tree_view (GtkTreeSelection *selection)
  * @iter: The #GtkTreeIter, or NULL.
  *
  * Sets @iter to the currently selected node if @selection is set to
- * #GTK_TREE_SELECTION_SINGLE.  @iter may be NULL if you just want to test if
- * @selection has any selected nodes.  @model is filled with the current model
- * as a convenience.  This function will not work if you use @selection is
- * #GTK_TREE_SELECTION_MULTI.
+ * #GTK_SELECTION_SINGLE or #GTK_SELECTION_BROWSE.  @iter may be NULL if you
+ * just want to test if @selection has any selected nodes.  @model is filled
+ * with the current model as a convenience.  This function will not work if you
+ * use @selection is #GTK_SELECTION_MULTIPLE.
  *
  * Return value: TRUE, if there is a selected node.
  **/
@@ -308,7 +338,7 @@ gtk_tree_selection_get_selected (GtkTreeSelection  *selection,
   gboolean retval;
 
   g_return_val_if_fail (GTK_IS_TREE_SELECTION (selection), FALSE);
-  g_return_val_if_fail (selection->type == GTK_TREE_SELECTION_SINGLE, FALSE);
+  g_return_val_if_fail (selection->type != GTK_SELECTION_MULTIPLE, FALSE);
   g_return_val_if_fail (selection->tree_view != NULL, FALSE);
   g_return_val_if_fail (selection->tree_view->priv->model != NULL, FALSE);
 
@@ -380,7 +410,8 @@ gtk_tree_selection_selected_foreach (GtkTreeSelection            *selection,
       selection->tree_view->priv->tree->root == NULL)
     return;
 
-  if (selection->type == GTK_TREE_SELECTION_SINGLE)
+  if (selection->type == GTK_SELECTION_SINGLE ||
+      selection->type == GTK_SELECTION_BROWSE)
     {
       if (gtk_tree_row_reference_valid (selection->tree_view->priv->anchor))
        {
@@ -492,7 +523,7 @@ gtk_tree_selection_select_path (GtkTreeSelection *selection,
   if (node == NULL || GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
     return;
 
-  if (selection->type == GTK_TREE_SELECTION_MULTI)
+  if (selection->type == GTK_SELECTION_MULTIPLE)
     state = GDK_CONTROL_MASK;
 
   _gtk_tree_selection_internal_select_node (selection,
@@ -592,6 +623,71 @@ gtk_tree_selection_unselect_iter (GtkTreeSelection *selection,
   gtk_tree_path_free (path);
 }
 
+/**
+ * gtk_tree_selection_path_is_selected:
+ * @selection: A #GtkTreeSelection.
+ * @path: A #GtkTreePath to check selection on.
+ * 
+ * Returns %TRUE if the row pointed to by @path is currently selected.  If @path
+ * does not point to a valid location, %FALSE is returned
+ * 
+ * Return value: %TRUE if @path is selected.
+ **/
+gboolean
+gtk_tree_selection_path_is_selected (GtkTreeSelection *selection,
+                                    GtkTreePath      *path)
+{
+  GtkRBNode *node;
+  GtkRBTree *tree;
+
+  g_return_val_if_fail (GTK_IS_TREE_SELECTION (selection), FALSE);
+  g_return_val_if_fail (path != NULL, FALSE);
+  g_return_val_if_fail (selection->tree_view != NULL, FALSE);
+  g_return_val_if_fail (selection->tree_view->priv->model != NULL, FALSE);
+
+  _gtk_tree_view_find_node (selection->tree_view,
+                           path,
+                           &tree,
+                           &node);
+
+  if ((node == NULL) || !GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
+    return FALSE;
+
+  return TRUE;
+}
+
+/**
+ * gtk_tree_selection_iter_is_selected:
+ * @selection: A #GtkTreeSelection
+ * @iter: A valid #GtkTreeIter
+ * 
+ * Returns %TRUE if the row pointed to by @path is currently selected.
+ * 
+ * Return value: %TRUE, if @iter is selected
+ **/
+gboolean
+gtk_tree_selection_iter_is_selected (GtkTreeSelection *selection,
+                                    GtkTreeIter      *iter)
+{
+  GtkTreePath *path;
+  gboolean retval;
+
+  g_return_val_if_fail (GTK_IS_TREE_SELECTION (selection), FALSE);
+  g_return_val_if_fail (iter != NULL, FALSE);
+  g_return_val_if_fail (selection->tree_view != NULL, FALSE);
+  g_return_val_if_fail (selection->tree_view->priv->model != NULL, FALSE);
+
+  path = gtk_tree_model_get_path (selection->tree_view->priv->model, iter);
+  if (path == NULL)
+    return FALSE;
+
+  retval = gtk_tree_selection_path_is_selected (selection, path);
+  gtk_tree_path_free (path);
+
+  return retval;
+}
+
+
 /* Wish I was in python, right now... */
 struct _TempTuple {
   GtkTreeSelection *selection;
@@ -652,8 +748,8 @@ gtk_tree_selection_real_select_all (GtkTreeSelection *selection)
  * gtk_tree_selection_select_all:
  * @selection: A #GtkTreeSelection.
  *
- * Selects all the nodes.  @selection is must be set to
- * #GTK_TREE_SELECTION_MULTI mode.
+ * Selects all the nodes.  @selection is must be set to #GTK_SELECTION_MULTIPLE
+ * mode.
  **/
 void
 gtk_tree_selection_select_all (GtkTreeSelection *selection)
@@ -662,7 +758,7 @@ gtk_tree_selection_select_all (GtkTreeSelection *selection)
   g_return_if_fail (selection->tree_view != NULL);
   if (selection->tree_view->priv->tree == NULL)
     return;
-  g_return_if_fail (selection->type != GTK_TREE_SELECTION_MULTI);
+  g_return_if_fail (selection->type == GTK_SELECTION_MULTIPLE);
 
   if (gtk_tree_selection_real_select_all (selection))
     g_signal_emit (G_OBJECT (selection), tree_selection_signals[CHANGED], 0);
@@ -692,7 +788,8 @@ gtk_tree_selection_real_unselect_all (GtkTreeSelection *selection)
 {
   struct _TempTuple *tuple;
 
-  if (selection->type == GTK_TREE_SELECTION_SINGLE)
+  if (selection->type == GTK_SELECTION_SINGLE ||
+      selection->type == GTK_SELECTION_BROWSE)
     {
       GtkRBTree *tree = NULL;
       GtkRBNode *node = NULL;
@@ -877,14 +974,18 @@ _gtk_tree_selection_internal_select_node (GtkTreeSelection *selection,
   gint dirty = FALSE;
   GtkTreePath *anchor_path = NULL;
 
+  if (selection->type == GTK_SELECTION_NONE)
+    return;
 
   if (selection->tree_view->priv->anchor)
     anchor_path = gtk_tree_row_reference_get_path (selection->tree_view->priv->anchor);
 
-  if (selection->type == GTK_TREE_SELECTION_SINGLE)
+  if (selection->type == GTK_SELECTION_SINGLE ||
+      selection->type == GTK_SELECTION_BROWSE)
     {
       /* Did we try to select the same node again? */
-      if (anchor_path && gtk_tree_path_compare (path, anchor_path) == 0)
+      if (selection->type == GTK_SELECTION_SINGLE &&
+         anchor_path && gtk_tree_path_compare (path, anchor_path) == 0)
        {
          if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
            {
@@ -921,7 +1022,7 @@ _gtk_tree_selection_internal_select_node (GtkTreeSelection *selection,
            }
        }
     }
-  else if (selection->type == GTK_TREE_SELECTION_MULTI)
+  else if (selection->type == GTK_SELECTION_MULTIPLE)
     {
       if (((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK) && (anchor_path == NULL))
        {
@@ -983,12 +1084,6 @@ _gtk_tree_selection_internal_select_node (GtkTreeSelection *selection,
 /* NOTE: Any {un,}selection ever done _MUST_ be done through this function!
  */
 
-/* FIXME: user_func can screw up GTK_TREE_SELECTION_SINGLE.  If it prevents
- * unselection of a node, it can keep more then one node selected.
- */
-/* Perhaps the correct solution is to prevent selecting the new node, if
- * we fail to unselect the old node.
- */
 static gint
 gtk_tree_selection_real_select_node (GtkTreeSelection *selection,
                                     GtkRBTree        *tree,
@@ -1003,7 +1098,9 @@ gtk_tree_selection_real_select_node (GtkTreeSelection *selection,
       path = _gtk_tree_view_find_path (selection->tree_view, tree, node);
       if (selection->user_func)
        {
-         if ((*selection->user_func) (selection, selection->tree_view->priv->model, path, selection->user_data))
+         if ((*selection->user_func) (selection, selection->tree_view->priv->model, path,
+                                       GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED),
+                                       selection->user_data))
            selected = TRUE;
        }
       else