[libchamplain] ChamplainMapSourceConstructor is more binding friendly.

[Pierre-Luc Beaudoin <plbeaudoin src gnome org>]

commit 10c36e424e231c8b0e6f0b2c3d2a3a55d32ac564
Author: Emmanuel Rodriguez <emmanuel rodriguez gmail com>
Date:   Mon May 18 21:26:09 2009 +0200

    ChamplainMapSourceConstructor is more binding friendly.
    
    Since the constructor is a callback it is now passed an extra gpointer. This
    will allow the bindings to properly pass a custom parameter that will wrap a
    language defined function with the extra parameters.
    
    The type ChamplainMapSourceDesc has been enhanced with an extra gpointer.

 champlain/champlain-map-source-desc.h |   12 +++++++++---
 1 files changed, 9 insertions(+), 3 deletions(-)
---
diff --git a/champlain/champlain-map-source-desc.h b/champlain/champlain-map-source-desc.h
index 358b67a..1840036 100644
--- a/champlain/champlain-map-source-desc.h
+++ b/champlain/champlain-map-source-desc.h
@@ -27,6 +27,10 @@
 
 G_BEGIN_DECLS
 
+
+typedef struct _ChamplainMapSourceDesc ChamplainMapSourceDesc;
+
+
 /**
  * ChamplainMapSourceConstructor:
  *
@@ -35,7 +39,8 @@ G_BEGIN_DECLS
  *
  * Since: 0.4
  */
-typedef ChamplainMapSource * (*ChamplainMapSourceConstructor) ();
+typedef ChamplainMapSource * (*ChamplainMapSourceConstructor) (
+    ChamplainMapSourceDesc *desc, gpointer *data);
 #define CHAMPLAIN_MAP_SOURCE_CONSTRUCTOR (f) ((ChamplainMapSourceConstructor) (f))
 
 #define CHAMPLAIN_MAP_SOURCE_DESC(obj)     ((ChamplainMapSourceDesc *) (obj))
@@ -47,7 +52,7 @@ typedef ChamplainMapSource * (*ChamplainMapSourceConstructor) ();
  *
  * Since: 0.4
  */
-typedef struct {
+struct _ChamplainMapSourceDesc {
   gchar *id;
   gchar *name;
   gchar *license;
@@ -56,7 +61,8 @@ typedef struct {
   gint max_zoom_level;
   ChamplainMapProjection projection;
   ChamplainMapSourceConstructor constructor;
-} ChamplainMapSourceDesc;
+  gpointer *data;
+};
 
 G_END_DECLS