0025052: Visualization - activation of all Clipping Planes within driver limit leads...

[occt.git] / src / Aspect / Aspect_GenId.cxx

diff --git a/src/Aspect/Aspect_GenId.cxx b/src/Aspect/Aspect_GenId.cxx
index 5728e57..bc4800a 100644 (file)
--- a/src/Aspect/Aspect_GenId.cxx
+++ b/src/Aspect/Aspect_GenId.cxx
@@ -14,111 +14,124 @@
 // Alternatively, this file may be used under the terms of Open CASCADE
 // commercial license or contractual agreement.
 
-//-Version     
-
-//-Design      Declaration des variables specifiques aux identificateurs
-
-//-Warning     Un identificateur est un entier.
-
-//-References  
-
-//-Language    C++ 2.0
-
-//-Declarations
-
-// for the class
 #include <Aspect_GenId.ixx>
 
-//-Aliases
-
-//-Global data definitions
-
-//-Constructors
-
-//-Destructors
-
-//-Methods, in order
-
-Aspect_GenId::Aspect_GenId ():
-
-       MyCount (INT_MAX/2 + 1),
-       MyLength (INT_MAX/2 + 1),
-       MyLowerBound (0),
-       MyUpperBound (INT_MAX/2),
-       MyFreeIds () {
-
+// =======================================================================
+// function : Aspect_GenId
+// purpose  :
+// =======================================================================
+Aspect_GenId::Aspect_GenId()
+: myFreeCount  (INT_MAX / 2 + 1),
+  myLength     (INT_MAX / 2 + 1),
+  myLowerBound (0),
+  myUpperBound (INT_MAX / 2)
+{
+  //
 }
 
-Aspect_GenId::Aspect_GenId (const Standard_Integer Low, const Standard_Integer Up):MyFreeIds () {
-
-       if (Low <= Up) {
-               MyLowerBound    = Low;
-               MyUpperBound    = Up;
-               MyLength        = MyUpperBound - MyLowerBound + 1;
-               MyCount         = MyLength;
-       }
-       else
-               Aspect_IdentDefinitionError::Raise
-                       ("GenId Create Error: Low > Up");
-
+// =======================================================================
+// function : Aspect_GenId
+// purpose  :
+// =======================================================================
+Aspect_GenId::Aspect_GenId (const Standard_Integer theLow,
+                            const Standard_Integer theUpper)
+: myFreeCount  (theUpper - theLow + 1),
+  myLength     (theUpper - theLow + 1),
+  myLowerBound (theLow),
+  myUpperBound (theUpper)
+{
+  if (theLow > theUpper)
+  {
+    Aspect_IdentDefinitionError::Raise ("GenId Create Error: wrong interval");
+  }
 }
 
-Standard_Integer Aspect_GenId::Available () const {
-
-       return (MyCount);
-
+// =======================================================================
+// function : HasFree
+// purpose  :
+// =======================================================================
+Standard_Boolean Aspect_GenId::HasFree() const
+{
+  return myFreeCount > 0
+      || myFreeIds.Extent() > 0;
 }
 
-void Aspect_GenId::Free () {
-
-       MyCount = MyLength;
-       MyFreeIds.Clear ();
-
+// =======================================================================
+// function : Available
+// purpose  :
+// =======================================================================
+Standard_Integer Aspect_GenId::Available() const
+{
+  return myFreeCount + myFreeIds.Extent();
 }
 
-void Aspect_GenId::Free (const Standard_Integer Id) {
-
-       if ( (Id >= MyLowerBound) && (Id <= MyUpperBound) )
-               MyFreeIds.Prepend (Id);
-
+// =======================================================================
+// function : Free
+// purpose  :
+// =======================================================================
+void Aspect_GenId::Free()
+{
+  myFreeCount = myLength;
+  myFreeIds.Clear();
 }
 
-Standard_Integer Aspect_GenId::Lower () const {
-
-       return (MyLowerBound);
-
+// =======================================================================
+// function : Free
+// purpose  :
+// =======================================================================
+void Aspect_GenId::Free (const Standard_Integer theId)
+{
+  if (theId >= myLowerBound
+   && theId <= myUpperBound)
+  {
+    if (myFreeCount + myFreeIds.Extent() + 1 == myLength)
+    {
+      myFreeCount = myLength;
+      myFreeIds.Clear();
+    }
+    else
+    {
+      myFreeIds.Prepend (theId);
+    }
+  }
 }
 
-Standard_Integer Aspect_GenId::Next () {
-
-       if (MyCount == 0)
-               Aspect_IdentDefinitionError::Raise
-                       ("GenId Next Error: Available == 0");
-
-Standard_Integer Id;
-
-       if (! MyFreeIds.IsEmpty ()) {
-               Id      = MyFreeIds.First ();
-               MyFreeIds.RemoveFirst ();
-       }
-       else {
-               MyCount --;
-               Id      = MyLowerBound + MyLength - MyCount - 1;
-       }
-
-       return Id;
-
+// =======================================================================
+// function : Lower
+// purpose  :
+// =======================================================================
+Standard_Integer Aspect_GenId::Lower() const
+{
+  return myLowerBound;
 }
 
-Standard_Integer Aspect_GenId::Upper () const {
-
-       return (MyUpperBound);
-
+// =======================================================================
+// function : Next
+// purpose  :
+// =======================================================================
+Standard_Integer Aspect_GenId::Next()
+{
+  if (!myFreeIds.IsEmpty())
+  {
+    const Standard_Integer anId = myFreeIds.First();
+    myFreeIds.RemoveFirst();
+    return anId;
+  }
+  else if (myFreeCount < 1)
+  {
+    Aspect_IdentDefinitionError::Raise ("GenId Next Error: Available == 0");
+  }
+
+  --myFreeCount;
+  const Standard_Integer anId = myLowerBound + myLength - myFreeCount - 1;
+  return anId;
 }
 
-//void Aspect_GenId::Assign (const Aspect_GenId& Other) {
-//
-//     MyLowerBound    = Other.Lower ();
-//     MyUpperBound    = Other.Upper ();
-//
-//}
+// =======================================================================
+// function : Upper
+// purpose  :
+// =======================================================================
+Standard_Integer Aspect_GenId::Upper() const
+{
+  return myUpperBound;
+}