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factorized a bit the attribute classes in TriMesh; 

added to IsValidHandle the check that pointer to data is not null.
Explanation:
a handle may be not valid for two reasons:
1) the attribute has been destroyed with a DeletePer*Attribute
2) the handle has been declared but not initialized.
The change is to cover the case 2)
This commit is contained in:
ganovelli 2009-06-04 16:13:21 +00:00
parent 66ec7652dc
commit f223914581
1 changed files with 4 additions and 1 deletions
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5
vcg/complex/trimesh/allocate.h
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@ -706,7 +706,7 @@ public:
template <class ATTR_TYPE>
static
bool IsValidHandle( MeshType & m, const typename MeshType::template PerVertexAttributeHandle<ATTR_TYPE> & a){
if(a._handle == NULL) return false;
for(HandlesIterator i = m.vert_attr.begin(); i!=m.vert_attr.end();++i)
if ( (*i).n_attr == a.n_attr ) return true;
return false;
@ -779,6 +779,7 @@ public:
template <class ATTR_TYPE>
static
bool IsValidHandle( MeshType & m, const typename MeshType::template PerEdgeAttributeHandle<ATTR_TYPE> & a){
if(a._handle == NULL) return false;
for(HandlesIterator i = m.edge_attr.begin(); i!=m.edge_attr.end();++i)
if ( (*i).n_attr == a.n_attr ) return true;
return false;
@ -851,6 +852,7 @@ public:
template <class ATTR_TYPE>
static
bool IsValidHandle( MeshType & m, const typename MeshType::template PerFaceAttributeHandle<ATTR_TYPE> & a){
if(a._handle == NULL) return false;
for(HandlesIterator i = m.face_attr.begin(); i!=m.face_attr.end();++i)
if ( (*i).n_attr == a.n_attr ) return true;
return false;
@ -923,6 +925,7 @@ public:
template <class ATTR_TYPE>
static
bool IsValidHandle( MeshType & m, const typename MeshType::template PerMeshAttributeHandle<ATTR_TYPE> & a){
if(a._handle == NULL) return false;
for(HandlesIterator i = m.mesh_attr.begin(); i!=m.mesh_attr.end();++i)
if ( (*i).n_attr == a.n_attr ) return true;
return false;