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#ifndef SIGCXX_HANDLE_H |
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#define SIGCXX_HANDLE_H |
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#include |
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#ifdef SIGC_CXX_NAMESPACES |
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namespace SigC |
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{ |
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#endif |
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// Signiture for Handles |
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template |
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class Handle |
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{ |
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protected: |
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Scope_ scope_; |
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public: |
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// access |
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Obj* obj() |
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{ |
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return static_cast(scope_.cache()); |
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} |
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Obj* obj() const |
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{ |
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return static_cast(scope_.cache()); |
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} |
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bool connected() const |
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{return (scope_.object()!=0);} |
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operator Obj*() |
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{return (obj());} |
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operator Obj*() const |
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{return (obj());} |
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Obj& operator*() const |
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{return *(obj());} |
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Obj* operator->() const |
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{return (obj());} |
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Scope_& scope() |
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{return scope_;} |
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const Scope_& scope() const |
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{return scope_;} |
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void disconnect() |
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{scope_.disconnect(0);} |
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// copy |
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Handle& operator =(Obj* obj) |
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{scope_.set(obj,obj,true); return *this;} |
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Handle& operator =(Obj& obj) |
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{scope_.set(&obj,&obj,false); return *this;} |
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#ifndef SIGC_CXX_TEMPLATE_CCTOR |
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Handle& operator =(const Handle& handle) |
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{ |
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Obj *o=handle.obj(); |
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scope_.set(o,o,false); |
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return *this; |
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} |
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#endif |
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template |
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Handle& operator = (const Handle& handle) |
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{ |
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Obj *o=handle.obj(); |
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scope_.set(o,o,false); |
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return *this; |
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} |
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// construct |
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Handle():scope_() {} |
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Handle(Obj *obj):scope_() {scope_.set(obj,obj,true);} |
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Handle(Obj &obj):scope_() {scope_.set(&obj,&obj,false);} |
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#ifndef SIGC_CXX_TEMPLATE_CCTOR |
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Handle(const Handle& handle) |
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:scope_() |
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{ |
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Obj *o=handle.obj(); |
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scope_.set(o,o,false); |
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} |
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#endif |
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template |
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Handle(const Handle& handle) |
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:scope_() |
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{ |
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Obj *o=handle.obj(); |
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scope_.set(o,o,false); |
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} |
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}; |
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#define HANDLE_CTORS(X,T,P) \ |
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public: \ |
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X(T *t):Handle(t) {} \ |
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X(T &t):Handle(t) {} \ |
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template \ |
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X(const Handle &h):Handle(h) {} \ |
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X& operator =(T *t) \ |
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{return Handle::operator=(t);} \ |
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X& operator =(T &t) \ |
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{return Handle::operator=(t);} \ |
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template \ |
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X& operator =(const Handle &t) \ |
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{return Handle::operator=(t);} |
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//template |
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// class Ref:public Handle |
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// { |
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// HANDLE_CTORS(Ref,T,Scopes::RefCount) |
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// }; |
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#ifdef SIGC_CXX_NAMESPACES |
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} // namespace |
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#endif |
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#endif |