File : gnatcom-itypeinfo_interface.adb


------------------------------------------------------------------------------
--                                                                          --
--      GNATCOM - Ada 95 COM/DCOM/COM+ Development Framework and Tools      --
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------------------------------------------------------------------------------

with GNATCOM.Errors; use GNATCOM.Errors;
with GNATCOM.ITypeLib_Interface;
with GNATCOM.BSTR;

package body GNATCOM.ITypeInfo_Interface is

   ------------
   -- Attach --
   ------------

   procedure Attach
     (This    : in out ITypeInfo_Type;
      Pointer :        GNATCOM.Types.Pointer_To_ITypeInfo)
   is
   begin
      Attach (This,
              GNATCOM.Interface.To_Pointer_To_IUnknown (Pointer.all'Address));
   end Attach;

   --------------------------
   -- GetContainingTypeLib --
   --------------------------

   function GetContainingTypeLib
     (This   : ITypeInfo_Type;
      pIndex : GNATCOM.Types.Pointer_To_int)
     return GNATCOM.Types.Pointer_To_ITypeLib
   is
      pTLib  : aliased GNATCOM.Types.Pointer_To_ITypeLib;
   begin
      Error_Check
        (Pointer (This).Vtbl.GetContainingTypeLib (Pointer (This),
                                                   pTLib'Unchecked_Access,
                                                   pIndex));
      return pTLib;
   end GetContainingTypeLib;

   -----------------
   -- GetDllEntry --
   -----------------

   procedure GetDllEntry
     (This         : ITypeInfo_Type;
      memid        : Interfaces.C.long;
      invkind      : GNATCOM.Types.INVOKEKIND;
      pBstrDllName : GNATCOM.Types.Pointer_To_BSTR;
      pBstrName    : GNATCOM.Types.Pointer_To_BSTR;
      pwOrdinal    : GNATCOM.Types.Pointer_To_short)
   is
   begin
      Error_Check
         (Pointer (This).Vtbl.GetDllEntry (Pointer (This),
                                           memid,
                                           invkind,
                                           pBstrDllName,
                                           pBstrName,
                                           pwOrdinal));
   end GetDllEntry;

   ----------------------
   -- GetDocumentation --
   ----------------------

   procedure GetDocumentation
     (This           : ITypeInfo_Type;
      memid          : Interfaces.C.long;
      pBstrName      : GNATCOM.Types.Pointer_To_BSTR;
      pBstrDocString : GNATCOM.Types.Pointer_To_BSTR;
      pdwHelpContext : GNATCOM.Types.Pointer_To_unsigned_long;
      pBstrHelpFile  : GNATCOM.Types.Pointer_To_BSTR)
   is
   begin
      Error_Check
         (Pointer (This).Vtbl.GetDocumentation (Pointer (This),
                                                memid,
                                                pBstrName,
                                                pBstrDocString,
                                                pdwHelpContext,
                                                pBstrHelpFile));
   end GetDocumentation;

   -----------------
   -- GetFuncDesc --
   -----------------

   function GetFuncDesc
     (This  : ITypeInfo_Type;
      index : Interfaces.C.int)
      return GNATCOM.Types.Pointer_To_FUNCDESC
   is
      pFuncDesc : aliased GNATCOM.Types.Pointer_To_FUNCDESC;
   begin
      Error_Check
        (Pointer (This).Vtbl.GetFuncDesc (Pointer (This),
                                          index,
                                          pFuncDesc'Unchecked_Access));
      return pFuncDesc;
   end GetFuncDesc;

   ----------------------
   -- GetImplTypeFlags --
   ----------------------

   function GetImplTypeFlags
     (This  : ITypeInfo_Type;
      index : Interfaces.C.int)
      return Interfaces.C.unsigned
   is
      pImplTypeFlags : aliased Interfaces.C.int;
   begin
      Error_Check
        (Pointer (This).Vtbl.GetImplTypeFlags
         (Pointer (This),
          index,
          pImplTypeFlags'Unchecked_Access));

      return Interfaces.C.unsigned (pImplTypeFlags);
   end GetImplTypeFlags;

   -------------
   -- GetMops --
   -------------

   function GetMops
     (This  : ITypeInfo_Type;
      memid : Interfaces.C.long)
      return GNATCOM.Types.BSTR
   is
      BstrMops : aliased GNATCOM.Types.BSTR;
   begin
      Error_Check
        (Pointer (This).Vtbl.GetMops (Pointer (This),
                                      memid,
                                      BstrMops'Unchecked_Access));

         return BstrMops;
   end GetMops;

   --------------
   -- GetNames --
   --------------

   procedure GetNames
     (This        : ITypeInfo_Type;
      memid       : Interfaces.C.long;
      rgBstrNames : GNATCOM.Types.Pointer_To_BSTR_PARAM_ARRAY;
      cMaxNames   : Interfaces.C.int;
      pcNames     : GNATCOM.Types.Pointer_To_int)
   is
   begin
      Error_Check
        (Pointer (This).Vtbl.GetNames (Pointer (This),
                                       memid,
                                       rgBstrNames,
                                       cMaxNames,
                                       pcNames));
   end GetNames;

   --------------------
   -- GetRefTypeInfo --
   --------------------

   function GetRefTypeInfo
     (This     : ITypeInfo_Type;
      hreftype : Interfaces.C.unsigned_long)
      return GNATCOM.Types.Pointer_To_ITypeInfo
   is
      pTInfo : aliased GNATCOM.Types.Pointer_To_ITypeInfo;
   begin
      Error_Check
        (Pointer (This).Vtbl.GetRefTypeInfo (Pointer (This),
                                             hreftype,
                                             pTInfo'Unchecked_Access));

         return pTInfo;
   end GetRefTypeInfo;

   --------------------------
   -- GetRefTypeOfImplType --
   --------------------------

   function GetRefTypeOfImplType
     (This  : ITypeInfo_Type;
      index : Interfaces.C.int)
      return Interfaces.C.unsigned_long
   is
      RefType : aliased Interfaces.C.unsigned_long;
   begin
      Error_Check
        (Pointer (This).Vtbl.GetRefTypeOfImplType (Pointer (This),
                                                   index,
                                                   RefType'Unchecked_Access));

      return RefType;
   end GetRefTypeOfImplType;

   -----------------
   -- GetTypeAttr --
   -----------------

   function GetTypeAttr
     (This : ITypeInfo_Type)
      return GNATCOM.Types.Pointer_To_TYPEATTR
   is
      pTypeAttr : aliased GNATCOM.Types.Pointer_To_TYPEATTR;
   begin
      Error_Check
        (Pointer (This).Vtbl.GetTypeAttr (Pointer (This),
                                         pTypeAttr'Unchecked_Access));

      return pTypeAttr;
   end GetTypeAttr;

   -----------------
   -- GetTypeComp --
   -----------------

   function GetTypeComp
     (This : ITypeInfo_Type)
      return GNATCOM.Types.Pointer_To_ITypeComp
   is
      pTComp : aliased GNATCOM.Types.Pointer_To_ITypeComp;
   begin
      Error_Check
        (Pointer (This).Vtbl.GetTypeComp (Pointer (This),
                                          pTComp'Unchecked_Access));

      return pTComp;
   end GetTypeComp;

   ----------------
   -- GetVarDesc --
   ----------------

   function GetVarDesc
     (This  : ITypeInfo_Type;
      index : Interfaces.C.int)
      return GNATCOM.Types.Pointer_To_VARDESC
   is
      pVarDesc : aliased GNATCOM.Types.Pointer_To_VARDESC;
   begin
      Error_Check
        (Pointer (This).Vtbl.GetVarDesc (Pointer (This),
                                         index,
                                         pVarDesc'Unchecked_Access));

      return pVarDesc;
   end GetVarDesc;

   ----------------
   -- Initialize --
   ----------------

   procedure Initialize (This : in out ITypeInfo_Type) is
   begin
      Set_IID (This, GNATCOM.Types.IID_ITypeInfo);
   end Initialize;

   -------------
   -- Pointer --
   -------------

   function Pointer
     (This : ITypeInfo_Type)
      return GNATCOM.Types.Pointer_To_ITypeInfo
   is
   begin
      return To_Pointer_To_ITypeInfo (Address (This));
   end Pointer;

   ---------------------
   -- ReleaseFuncDesc --
   ---------------------

   procedure ReleaseFuncDesc
     (This      : ITypeInfo_Type;
      pFuncDesc : GNATCOM.Types.Pointer_To_FUNCDESC)
   is
   begin
      Error_Check
        (Pointer (This).Vtbl.ReleaseFuncDesc (Pointer (This),
                                              pFuncDesc));

   end ReleaseFuncDesc;

   ---------------------
   -- ReleaseTypeAttr --
   ---------------------

   procedure ReleaseTypeAttr
     (This      : ITypeInfo_Type;
      pTypeAttr : GNATCOM.Types.Pointer_To_TYPEATTR)
   is
   begin
      Error_Check
        (Pointer (This).Vtbl.ReleaseTypeAttr (Pointer (This),
                                              pTypeAttr));
   end ReleaseTypeAttr;

   --------------------
   -- ReleaseVarDesc --
   --------------------

   procedure ReleaseVarDesc
     (This     : ITypeInfo_Type;
      pVarDesc : GNATCOM.Types.Pointer_To_VARDESC)
   is
   begin
      Error_Check
        (Pointer (This).Vtbl.ReleaseVarDesc (Pointer (This),
                                             pVarDesc));
   end ReleaseVarDesc;

   -------------
   -- GetName --
   -------------

   function GetName
     (This : ITypeInfo_Type)
     return String
   is
      use GNATCOM.ITypeLib_Interface;

      Ref_Lib    : ITypeLib_Type;
      Ref_Index  : aliased Interfaces.C.int;
      Name       : aliased GNATCOM.Types.BSTR;
   begin
      Attach (Ref_Lib, GetContainingTypeLib
              (This,
               Ref_Index'Unchecked_Access));

      GetDocumentation (Ref_Lib,
                        Ref_Index,
                        Name'Unchecked_Access,
                        null,
                        null,
                        null);

      return GNATCOM.BSTR.To_Ada (Name);
   end GetName;

   ----------------------
   -- GetDocumentation --
   ----------------------

   function GetDocumentation
     (This : ITypeInfo_Type)
     return String
   is
      use GNATCOM.ITypeLib_Interface;

      Ref_Lib    : ITypeLib_Type;
      Ref_Index  : aliased Interfaces.C.int;
      Doc        : aliased GNATCOM.Types.BSTR;
   begin
      Attach (Ref_Lib, GetContainingTypeLib
              (This,
               Ref_Index'Unchecked_Access));

      GetDocumentation (Ref_Lib,
                        Ref_Index,
                        null,
                        Doc'Unchecked_Access,
                        null,
                        null);

      return GNATCOM.BSTR.To_Ada (Doc);
   end GetDocumentation;

   -----------------
   -- GetTypeKind --
   -----------------

   function GetTypeKind
     (This : ITypeInfo_Type)
     return GNATCOM.Types.TYPEKIND
   is
      use GNATCOM.ITypeLib_Interface;

      Ref_Lib    : ITypeLib_Type;
      Ref_Index  : aliased Interfaces.C.int;
   begin
      Attach (Ref_Lib, GetContainingTypeLib
              (This,
               Ref_Index'Unchecked_Access));

      return GetTypeInfoType (Ref_Lib, Ref_Index);
   end GetTypeKind;

   ---------------------
   -- GetFunctionName --
   ---------------------

   function GetFunctionName
     (This  : ITypeInfo_Type;
      Desc  : GNATCOM.Types.Pointer_To_FUNCDESC)
     return String
   is
      use GNATCOM.Types;

      Name : aliased GNATCOM.Types.BSTR;
   begin
      GetDocumentation (This,
                        Desc.memid,
                        Name'Unchecked_Access,
                        null,
                        null,
                        null);

      case Desc.invkind is
         when INVOKE_PROPERTYGET =>
            return "Get_" & BSTR.To_Ada (Name);
         when INVOKE_PROPERTYPUT =>
            return "Put_" & BSTR.To_Ada (Name);
         when INVOKE_PROPERTYPUTREF =>
            return "PutRef_" & BSTR.To_Ada (Name);
         when others =>
            return BSTR.To_Ada (Name);
      end case;
   end GetFunctionName;

end GNATCOM.ITypeInfo_Interface;