[dia] Don't use deprecated macro GTK_CHECK_TYPE.

[Hans Breuer <hans src gnome org>]

commit 7d637cc0dae722605e1066070ce26b95b731777b
Author: Adam Buchbinder <adam buchbinder gmail com>
Date:   Mon May 4 13:34:39 2009 -0400

    Don't use deprecated macro GTK_CHECK_TYPE.
    
    Replaced GTK_CHECK_TYPE with G_TYPE_CHECK_INSTANCE_TYPE:
    http://library.gnome.org/devel/gtk/stable/gtk-Types.html#GTK-CHECK-TYPE--CAPS
    
    Signed-off-by: Adam Buchbinder <adam buchbinder gmail com>
    Signed-off-by: Hans Breuer <hans breuer org>
---
 app/diapagelayout.c |    2 +-
 app/layer_dialog.c  |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/diapagelayout.c b/app/diapagelayout.c
index ef96b67..75c2441 100644
--- a/app/diapagelayout.c
+++ b/app/diapagelayout.c
@@ -40,7 +40,7 @@
 
 /* private class : noone wants to inherit and noone needs to mess with details */
 #define DIA_PAGE_LAYOUT_CLASS(klass) G_TYPE_CHECK_CLASS_CAST(klass, dia_page_layout_get_type(), DiaPageLayoutClass)
-#define DIA_IS_PAGE_LAYOUT(obj) GTK_CHECK_TYPE(obj, dia_page_layout_get_type())
+#define DIA_IS_PAGE_LAYOUT(obj) G_TYPE_CHECK_INSTANCE_TYPE(obj, dia_page_layout_get_type())
 
 typedef struct _DiaPageLayoutClass DiaPageLayoutClass;
 
diff --git a/app/layer_dialog.c b/app/layer_dialog.c
index c1be71f..8850644 100644
--- a/app/layer_dialog.c
+++ b/app/layer_dialog.c
@@ -47,7 +47,7 @@
 #define DIA_LAYER_WIDGET_CLASS(klass)  \
   G_TYPE_CHECK_CLASS_CAST (klass, dia_layer_widget_get_type (), DiaLayerWidgetClass)
 #define IS_DIA_LAYER_WIDGET(obj)       \
-  GTK_CHECK_TYPE (obj, dia_layer_widget_get_type ())
+  G_TYPE_CHECK_INSTANCE_TYPE (obj, dia_layer_widget_get_type ())
 
 typedef struct _DiaLayerWidgetClass  DiaLayerWidgetClass;
 typedef struct _EditLayerDialog EditLayerDialog;