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OpenMesh
OpenMesh
Commits
70d7ae8a
Commit
70d7ae8a
authored
Apr 14, 2016
by
Janis Born
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add factory functions for creating PropertyManagers without restating the mesh type in C++11
parent
eda7782a
Pipeline
#1251
passed with stage
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71 additions
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11 deletions
+71
-11
src/OpenMesh/Core/Utils/PropertyManager.hh
src/OpenMesh/Core/Utils/PropertyManager.hh
+71
-11
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src/OpenMesh/Core/Utils/PropertyManager.hh
View file @
70d7ae8a
...
...
@@ -60,7 +60,23 @@ namespace OpenMesh {
* It also defines convenience operators to access the encapsulated
* property's value.
*
* Usage example:
* For C++11, it is recommended to use the factory functions
* makePropertyManagerFromNew, makePropertyManagerFromExisting,
* makePropertyManagerFromExistingOrNew to construct a PropertyManager, e.g.
*
* \code
* TriMesh mesh;
* auto visited = makePropertyManagerFromNew<VPropHandleT<bool>>(mesh, "visited.plugin-example.i8.informatik.rwth-aachen.de");
*
* for (auto vh : mesh.vertices()) {
* if (!visited[vh]) {
* visitComponent(mesh, vh, visited);
* }
* }
* \endcode
*
* For C++98, it is usually more convenient to use the constructor explicitly,
* i.e.
*
* \code
* TriMesh mesh;
...
...
@@ -107,6 +123,9 @@ class PropertyManager {
* the property is deleted upon destruction of the PropertyManager instance). If true,
* the instance merely acts as a convenience wrapper around an existing property with no
* lifecycle management whatsoever.
*
* @see PropertyManager::createIfNotExists, makePropertyManagerFromNew,
* makePropertyManagerFromExisting, makePropertyManagerFromExistingOrNew
*/
PropertyManager
(
MeshT
&
mesh
,
const
char
*
propname
,
bool
existing
=
false
)
:
mesh_
(
&
mesh
),
retain_
(
existing
),
name_
(
propname
)
{
if
(
existing
)
{
...
...
@@ -164,15 +183,14 @@ class PropertyManager {
* Move assignment. Transfers ownership (delete responsibility).
*/
PropertyManager
&
operator
=
(
PropertyManager
&&
rhs
)
{
deleteProperty
();
mesh_
=
rhs
.
mesh_
;
prop_
=
rhs
.
prop_
;
retain_
=
rhs
.
retain_
;
name_
=
rhs
.
name_
;
rhs
.
retain_
=
true
;
if
(
&
rhs
!=
this
)
{
deleteProperty
();
mesh_
=
rhs
.
mesh_
;
prop_
=
rhs
.
prop_
;
retain_
=
rhs
.
retain_
;
name_
=
rhs
.
name_
;
rhs
.
retain_
=
true
;
}
return
*
this
;
}
...
...
@@ -180,6 +198,8 @@ class PropertyManager {
* Create a property manager for the supplied property and mesh.
* If the property doesn't exist, it is created. In any case,
* lifecycle management is disabled.
*
* @see makePropertyManagerFromExistingOrNew
*/
static
PropertyManager
createIfNotExists
(
MeshT
&
mesh
,
const
char
*
propname
)
{
PROPTYPE
dummy_prop
;
...
...
@@ -192,7 +212,7 @@ class PropertyManager {
PropertyManager
duplicate
(
const
char
*
clone_name
)
{
PropertyManager
pm
(
*
mesh_
,
clone_name
,
false
);
pm
.
mesh_
->
property
(
pm
.
prop_
)
=
mesh_
->
property
(
prop_
);
return
std
::
move
(
pm
)
;
return
pm
;
}
/**
...
...
@@ -237,6 +257,8 @@ class PropertyManager {
* Create a property manager for the supplied property and mesh.
* If the property doesn't exist, it is created. In any case,
* lifecycle management is disabled.
*
* @see makePropertyManagerFromExistingOrNew
*/
static
Proxy
createIfNotExists
(
MeshT
&
mesh
,
const
char
*
propname
)
{
PROPTYPE
dummy_prop
;
...
...
@@ -406,5 +428,43 @@ class PropertyManager {
std
::
string
name_
;
};
/**
* Creates a new property whose lifecycle is managed by the returned
* PropertyManager.
*
* Intended for temporary properties. Shadows any existsing properties of
* matching name and type.
*/
template
<
typename
PROPTYPE
,
typename
MeshT
>
PropertyManager
<
PROPTYPE
,
MeshT
>
makePropertyManagerFromNew
(
MeshT
&
mesh
,
const
char
*
propname
)
{
return
PropertyManager
<
PROPTYPE
,
MeshT
>
(
mesh
,
propname
,
false
);
}
/**
* Creates a non-owning wrapper for an existing mesh property (no lifecycle
* management).
*
* Intended for convenient access.
*
* @pre Property with the name \p propname of matching type exists.
* @throws std::runtime_error if no property with the name \p propname of
* matching type exists.
*/
template
<
typename
PROPTYPE
,
typename
MeshT
>
PropertyManager
<
PROPTYPE
,
MeshT
>
makePropertyManagerFromExisting
(
MeshT
&
mesh
,
const
char
*
propname
)
{
return
PropertyManager
<
PROPTYPE
,
MeshT
>
(
mesh
,
propname
,
true
);
}
/**
* Creates a non-owning wrapper for a mesh property (no lifecycle management).
* If the given property does not exist, it is created.
*
* Intended for creating or accessing persistent properties.
*/
template
<
typename
PROPTYPE
,
typename
MeshT
>
PropertyManager
<
PROPTYPE
,
MeshT
>
makePropertyManagerFromExistingOrNew
(
MeshT
&
mesh
,
const
char
*
propname
)
{
return
PropertyManager
<
PROPTYPE
,
MeshT
>::
createIfNotExists
(
mesh
,
propname
);
}
}
/* namespace OpenMesh */
#endif
/* PROPERTYMANAGER_HH_ */
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