X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fbindable.h;h=b2634ea92bd4b1b43bb1f88b502af230f1e3c4bd;hp=8ea78034794f85c972a1bc43a88040ae9d4ceaa2;hb=4b4d2a48048268d2ad48bafbce8647af8088573f;hpb=aa4d25153b806a657ac3b4b0f2711f2a126f39b7

diff --git a/source/bindable.h b/source/bindable.h
index 8ea78034..b2634ea9 100644
--- a/source/bindable.h
+++ b/source/bindable.h
@@ -15,6 +15,7 @@ protected:
 	static const T *cur_obj;
 
 	Bindable() { }
+	~Bindable() { if(cur_obj==this) T::unbind(); }
 
 	static bool set_current(const T *obj)
 	{
@@ -39,8 +40,11 @@ A helper class for Bindables that revert to a default object on unbind.
 template<typename T>
 class BindableWithDefault: protected Bindable<T>
 {
+	friend class Bindable<T>;
+
 protected:
 	BindableWithDefault() { }
+	~BindableWithDefault() { if(this==&default_object()) Bindable<T>::set_current(0); }
 
 public:
 	static const T *current()
@@ -52,7 +56,8 @@ public:
 
 	static void unbind()
 	{
-		default_object().bind();
+		if(Bindable<T>::cur_obj)
+			default_object().bind();
 	}
 
 	static const T &default_object()
@@ -99,7 +104,7 @@ private:
 	template<typename T>
 	void init(const T *o)
 	{
-		cleanup = (o ? &unbind<T> : 0);
+		cleanup = (o ? static_cast<CleanupFunc *>(&unbind<T>) : 0);
 		slot = 0;
 		if(o)
 			o->bind();
@@ -110,7 +115,7 @@ private:
 	template<typename T, typename S>
 	void init(const T *o, S s)
 	{
-		cleanup = (o ? &unbind_from<T, S> : 0);
+		cleanup = (o ? static_cast<CleanupFunc *>(&unbind_from<T, S>) : 0);
 		slot = s;
 		if(o)
 			o->bind_to(s);
@@ -170,7 +175,7 @@ private:
 	{
 		old = T::current();
 		slot = 0;
-		cleanup = (o!=old ? &restore<T> : 0);
+		cleanup = (o!=old ? static_cast<CleanupFunc *>(&restore<T>) : 0);
 		if(o)
 			o->bind();
 		else if(old)
@@ -182,7 +187,7 @@ private:
 	{
 		old = T::current(s);
 		slot = s;
-		cleanup = (o!=old ? &restore_to<T, S> : 0);
+		cleanup = (o!=old ? static_cast<CleanupFunc *>(&restore_to<T, S>) : 0);
 		if(o)
 			o->bind_to(s);
 		else if(old)