new function. (fixes #105252, suggestion from Mikael Hallendal).

2005-07-14  Kristian Rietveld  <kris@gtk.org>

	* gtk/gtktreeview.[ch] (gtk_tree_view_get_visible_range): new
	function. (fixes #105252, suggestion from Mikael Hallendal).

diff --git a/ChangeLog b/ChangeLog
index fccb2e8405ec3a2c085a235eb483883ddeb17f28..c0ce3a1e10066365aa47c6f5ca60aa7cec7e48dc 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2005-07-14  Kristian Rietveld  <kris@gtk.org>
+
+       * gtk/gtktreeview.[ch] (gtk_tree_view_get_visible_range): new
+       function. (fixes #105252, suggestion from Mikael Hallendal).
+
 2005-07-13  Manish Singh  <yosh@gimp.org>
 
        * demos/gtk-demo/iconview_edit.c: remove unused variable.

diff --git a/ChangeLog.pre-2-10 b/ChangeLog.pre-2-10
index fccb2e8405ec3a2c085a235eb483883ddeb17f28..c0ce3a1e10066365aa47c6f5ca60aa7cec7e48dc 100644 (file)
--- a/ChangeLog.pre-2-10
+++ b/ChangeLog.pre-2-10
@@ -1,3 +1,8 @@
+2005-07-14  Kristian Rietveld  <kris@gtk.org>
+
+       * gtk/gtktreeview.[ch] (gtk_tree_view_get_visible_range): new
+       function. (fixes #105252, suggestion from Mikael Hallendal).
+
 2005-07-13  Manish Singh  <yosh@gimp.org>
 
        * demos/gtk-demo/iconview_edit.c: remove unused variable.

diff --git a/ChangeLog.pre-2-8 b/ChangeLog.pre-2-8
index fccb2e8405ec3a2c085a235eb483883ddeb17f28..c0ce3a1e10066365aa47c6f5ca60aa7cec7e48dc 100644 (file)
--- a/ChangeLog.pre-2-8
+++ b/ChangeLog.pre-2-8
@@ -1,3 +1,8 @@
+2005-07-14  Kristian Rietveld  <kris@gtk.org>
+
+       * gtk/gtktreeview.[ch] (gtk_tree_view_get_visible_range): new
+       function. (fixes #105252, suggestion from Mikael Hallendal).
+
 2005-07-13  Manish Singh  <yosh@gimp.org>
 
        * demos/gtk-demo/iconview_edit.c: remove unused variable.

diff --git a/gtk/gtktreeview.c b/gtk/gtktreeview.c
index d4bf62fe5e21a5d60a12ccaca53c3a64d287955e..13d974a39dc9a85dd1ae65b791ffda7cbe322d9d 100644 (file)
--- a/gtk/gtktreeview.c
+++ b/gtk/gtktreeview.c
@@ -11768,6 +11768,53 @@ gtk_tree_view_tree_to_widget_coords (GtkTreeView *tree_view,
     *wy = ty - tree_view->priv->dy;
 }
 
+/**
+ * gtk_tree_view_get_visible_range:
+ * @tree_view: A #GtkTreeView
+ * @start_path: Return location for start of region, or %NULL.
+ * @end_path: Return location for end of region, or %NULL.
+ *
+ * Sets @start_path and @end_path to be the first and last visible path.
+ * Note that there may be invisible paths in between.
+ *
+ * Returns: %TRUE, if valid paths were placed in @start_path and @end_path.
+ *
+ * Since: 2.8
+ **/
+gboolean
+gtk_tree_view_get_visible_range (GtkTreeView  *tree_view,
+                                 GtkTreePath **start_path,
+                                 GtkTreePath **end_path)
+{
+  GtkRBTree *tree;
+  GtkRBNode *node;
+
+  g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
+
+  if (start_path)
+    {
+      _gtk_rbtree_find_offset (tree_view->priv->tree,
+                               TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
+                               &tree, &node);
+      *start_path = _gtk_tree_view_find_path (tree_view, tree, node);
+    }
+
+  if (end_path)
+    {
+      gint y;
+
+      if (tree_view->priv->height < tree_view->priv->vadjustment->page_size)
+        y = tree_view->priv->height - 1;
+      else
+        y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, tree_view->priv->vadjustment->page_size) - 1;
+
+      _gtk_rbtree_find_offset (tree_view->priv->tree, y, &tree, &node);
+      *end_path = _gtk_tree_view_find_path (tree_view, tree, node);
+    }
+
+  return TRUE;
+}
+
 static void
 unset_reorderable (GtkTreeView *tree_view)
 {

diff --git a/gtk/gtktreeview.h b/gtk/gtktreeview.h
index 85e0d861b6ab163fde43183ccab537b4379f686a..121810352a8e9e4a11d9ddc99ead72aed17b1bf0 100644 (file)
--- a/gtk/gtktreeview.h
+++ b/gtk/gtktreeview.h
@@ -262,6 +262,9 @@ void                   gtk_tree_view_tree_to_widget_coords         (GtkTreeView
                                                                    gint                       ty,
                                                                    gint                      *wx,
                                                                    gint                      *wy);
+gboolean               gtk_tree_view_get_visible_range             (GtkTreeView               *tree_view,
+                                                                   GtkTreePath              **start_path,
+                                                                   GtkTreePath              **end_path);
 
 /* Drag-and-Drop support */
 void                   gtk_tree_view_enable_model_drag_source      (GtkTreeView               *tree_view,