[dia] Make the new Diagram Tree compile with gcc

[Hans Breuer <hans src gnome org>]

commit 34c4426c024f531feb282c5a1627b468631de19a
Author: Hans Breuer <hans breuer org>
Date:   Sun May 31 12:03:58 2009 +0200

    Make the new Diagram Tree compile with gcc
---
 app/diagram_tree_model.c |    9 +++++++++
 app/diagram_tree_view.c  |    3 ++-
 2 files changed, 11 insertions(+), 1 deletions(-)

diff --git a/app/diagram_tree_model.c b/app/diagram_tree_model.c
index c47c61d..235a142 100644
--- a/app/diagram_tree_model.c
+++ b/app/diagram_tree_model.c
@@ -32,9 +32,17 @@
 #include "diagram_tree_model.h"
 
 /* accessing iter fileds by name by */
+#ifdef _MSC_VER
+/* GCC does not like the pattern */
+/* error: lvalue required as left operand of assignment */
 #define NODE_DIAGRAM(it) ((DiagramData*)(it->user_data))
 #define NODE_LAYER(it) ((Layer*)(it->user_data2))
 #define NODE_OBJECT(it) ((DiaObject*)(it->user_data3))
+#else
+#define NODE_DIAGRAM(it) (it->user_data)
+#define NODE_LAYER(it) (it->user_data2)
+#define NODE_OBJECT(it) (it->user_data3)
+#endif
 typedef struct _DiagramTreeModelClass
 {
   GObjectClass parent_class;
@@ -45,6 +53,7 @@ typedef struct _DiagramTreeModel
   /* no need to store anything */
 } DiagramTreeModel;
 
+static GType _dtm_get_type (void);
 static void _dtm_finalize (GObject *object);
 
 static void
diff --git a/app/diagram_tree_view.c b/app/diagram_tree_view.c
index 597fb38..0fcc7df 100644
--- a/app/diagram_tree_view.c
+++ b/app/diagram_tree_view.c
@@ -54,6 +54,7 @@ struct _DiagramTreeViewClass {
 #define DIAGRAM_TREE_VIEW_TYPE (_dtv_get_type ())
 #define DIAGRAM_TREE_VIEW(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), DIAGRAM_TREE_VIEW_TYPE, DiagramTreeView))
 
+static GType _dtv_get_type (void);
 #if 0
 //future
 G_DEFINE_TYPE_WITH_CODE (DiagramTreeView, _dtv, GTK_TYPE_TREE_VIEW,
@@ -217,7 +218,7 @@ _dtv_row_activated (GtkTreeView       *view,
   if (gtk_tree_model_get_iter (model, &iter, path)) {
     gtk_tree_model_get (model, &iter, OBJECT_COLUMN, &object, -1);
 
-    //g_signal_emit (view, signals[REVISION_ACTIVATED], 0, object);
+    /* FIXME: g_signal_emit (view, signals[REVISION_ACTIVATED], 0, object); */
 
   }