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This class is used to reference Softimage objects. Each instance of an CRef maintains a link with only one single object at a time, it cannot refer to multiple objects. CRef has no base or derived class hierarchy and only contains methods for accessing the type of the underlying Softimage object.
CRef provides the core of the RTTI system to determine if an object is of a specific type; for example, to ensure that the compatibility between the reference and a given API class is valid by checking it against the siClassID enum. CRef instances are typically attached to API classes for manipulating Softimage objects.
A CRef object can be converted to its corresponding Softimage Object Model interface, and the resulting object can be used with the Softimage object model. The inverse is also possible: you can create a CRef object from an existing Softimage object model interface. See the XSI::ConvertObject function for more details.
using namespace XSI;
// Forward declaration
void GetSomeObjects( CRefArray& io_array, const Application& in_app );
Application app;
CRefArray array;
GetSomeObjects( array, app );
// Find all X3DObjects in the scene and add them to the ref array
CStringArray emptyArray;
Model root( app.GetActiveSceneRoot() );
array += root.FindChildren( L"", L"", emptyArray, true );
// Add grid's parameters to ref array
X3DObject grid;
root.AddGeometry( L"Grid", L"MeshSurface", L"", grid );
array += grid.GetParameters();
for (LONG i=0; i<array.GetCount(); ++i )
{
app.LogMessage(L"");
CRef ref(array[i]);
app.LogMessage( CString(L">>Reference object class type: ") + ref.GetClassIDName() );
if ( ref.IsA( siSIObjectID ) )
{
SIObject siobj(ref);
app.LogMessage( CString(L"\tObject name: ") + siobj.GetName() );
}
if ( ref.IsA( siX3DObjectID ) )
{
X3DObject xobj(ref);
app.LogMessage( CString(L"\tNumber of children : ") +
CValue(xobj.GetChildren().GetCount()).GetAsText() );
}
if ( ref.IsA( siParameterID ) )
{
Parameter param(ref);
app.LogMessage( CString(L"\tParameter's value : ") +
param.GetValue().GetAsText() );
}
}
// Fills an array with CRef objects
void GetSomeObjects( CRefArray& io_array, const Application& in_app )
{
X3DObject myCube;
X3DObject myCone;
Material myPhong;
Model root = in_app.GetActiveSceneRoot();
root.AddGeometry( L"Cube", L"MeshSurface", L"", myCube );
root.AddGeometry( L"Cone", L"MeshSurface", L"", myCone );
myCone.AddMaterial( L"Phong", false, L"", myPhong );
// Add CRef items to the input array
io_array.Add( myCube.GetActivePrimitive().GetRef() );
io_array.Add( myCone.GetActivePrimitive().GetRef() );
io_array.Add( myPhong.GetRef() );
}
#include <xsi_ref.h>
Public Member Functions |
|
| CRef () | |
| CRef (const CRef &in_xsiRef) | |
| ~CRef () | |
| siClassID | GetClassID () const |
| bool | IsA (siClassID in_classID) const |
| CString | GetClassIDName () const |
| bool | IsValid () const |
| operator bool () const | |
| bool | operator== (const CRef &in_ref) const |
| bool | operator!= (const CRef &in_ref) const |
| CRef & | operator= (const CRef &in_ref) |
| CStatus | Set (const CString &in_str) |
| CString | GetAsText () const |
| bool | operator< (const CRef &in_ref) const |
| bool | operator> (const CRef &in_ref) const |
| CRef | ( | ) |
Default constructor.
| ~CRef | ( | ) |
Destructor.
| siClassID GetClassID | ( | ) | const |
Returns the type of the object being referenced.
| bool IsA | ( | siClassID | in_classID | ) | const |
Returns true if a given class type is compatible with the underlying reference object.
| in_classID | Class type (the siClassID enum). |
| CString GetClassIDName | ( | ) | const |
Returns the type of the referenced object in text format.
| bool IsValid | ( | ) | const |
Returns true if the referenced object is valid or false otherwise.
| operator bool | ( | ) | const |
Bool converter operator that returns true if the object is valid or false otherwise.
| bool operator== | ( | const CRef & | in_ref | ) | const |
Equality operator
| in_ref | Reference object to compare. |
| bool operator!= | ( | const CRef & | in_ref | ) | const |
Inequality operator
| in_ref | Reference object to compare. |
Assigns a CRef object to this one.
| in_ref | A source Reference object |
Sets CRef from an object's string path. Returns CStatus::Fail if the object's path is invalid.
| in_str | String path to object for example, "Model.null.kine.local.posx" |
| CString GetAsText | ( | ) | const |
Returns the object's path as a string.
| bool operator< | ( | const CRef & | in_ref | ) | const |
Less-than operator. Performs a case-sensitive comparison with a
specified
CRef object to determine if this
CRef is lexicographically less than the specified
CRef. The comparison is done with CRef::GetAsText.
This is useful for sorting operations with stl
maps.
| in_ref | CRef we want to test. |
| bool operator> | ( | const CRef & | in_ref | ) | const |
Greater-than operator. Performs a case-sensitive comparison with a specified CRef object to determine if this CRef is lexicographically greater than the specified CRef. The comparison is done with CRef::GetAsText.
| in_ref | CRef we want to test. |