New files. A tree model using a GNode structure to store it's info.

2000-06-08  Chris Toshok  <toshok@helixcode.com>

	* e-tree-gnode.c, e-tree-gnode.h: New files.  A tree model using a
	GNode structure to store it's info.

	* e-tree-model.c, e-tree-model.h: New files.  A proxy model
	sitting between a table model and the real tree model (of which
	ETreeGNode is an example).

	* e-cell-tree.c, e-cell-tree.h: New files.  A cell renderer
	capable of wrapping up a subcell and drawing the tree controls for
	expanding/collapsing trees.

	* tree-expanded.xpm, tree-unexpanded.xpm: New files.  the standard
	+ and - icons.

	* e-tree-example-1.c: New file, giving a (pretty poor :) example
	of using ETreeGNode.

	* Makefile.am: at the tree stuff to the build, and build
	tree-example-1.

	* .cvsignore: ignore tree-example-1.

svn path=/trunk/; revision=3483

1 files changed, 37 insertions, 0 deletions

diff --git a/widgets/table/e-tree-gnode.h b/widgets/table/e-tree-gnode.h
new file mode 100644
index 0000000000..56e6b19b80
--- /dev/null
+++ b/widgets/table/e-tree-gnode.h
@@ -0,0 +1,37 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+
+#ifndef _E_TREE_GNODE_H_
+#define _E_TREE_GNODE_H_
+
+#include "e-tree-model.h"
+
+#define E_TREE_GNODE_TYPE        (e_tree_gnode_get_type ())
+#define E_TREE_GNODE(o)          (GTK_CHECK_CAST ((o), E_TREE_GNODE_TYPE, ETreeGNode))
+#define E_TREE_GNODE_CLASS(k)    (GTK_CHECK_CLASS_CAST((k), E_TREE_GNODE_TYPE, ETreeGNodeClass))
+#define E_IS_TREE_GNODE(o)       (GTK_CHECK_TYPE ((o), E_TREE_GNODE_TYPE))
+#define E_IS_TREE_GNODE_CLASS(k) (GTK_CHECK_CLASS_TYPE ((k), E_TREE_GNODE_TYPE))
+
+typedef void *(*ETreeGNodeValueAtFn)(ETreeModel *model, GNode *node, int col, void *data);
+
+
+typedef struct {
+	ETreeModel parent;
+
+	GNode *root;
+
+	ETreeGNodeValueAtFn value_at;
+
+	void *data;
+} ETreeGNode;
+
+typedef struct {
+	ETreeModelClass parent_class;
+} ETreeGNodeClass;
+
+GtkType e_tree_gnode_get_type (void);
+
+ETreeModel *e_tree_gnode_new (GNode *tree,
+			      ETreeGNodeValueAtFn value_at,
+			      void *data);
+
+#endif /* _E_TREE_GNODE_H_ */