3.13

Windows/ItemIDListUtils.h

@@ -0,0 +1,98 @@
+// ItemIDListUtils.h
+
+#pragma once
+
+#ifndef __ITEMIDLISTUTILS_H
+#define __ITEMIDLISTUTILS_H
+
+#include "Common/Types.h"
+
+/////////////////////////////
+// It is not for shell using
+// It's for internal using only
+// since it uses CoTaskMemFree instead SHGetMalloc
+
+namespace NItemIDList {
+
+LPITEMIDLIST GetNextItem(LPCITEMIDLIST anIDList);
+UINT32 GetSize(LPCITEMIDLIST anIDList);
+LPITEMIDLIST  GetLastItem(LPCITEMIDLIST anIDList);
+
+class CHolder
+{
+  LPITEMIDLIST m_Object;
+public:
+  CHolder(): m_Object(NULL) {}
+  CHolder(const CHolder& anItemIDList);
+  ~CHolder() { Free(); }
+  void Attach(LPITEMIDLIST anObject)
+  {
+    if (m_Object != NULL)
+      Free();
+    m_Object = anObject;
+  }
+  LPITEMIDLIST Detach()
+  {
+    LPITEMIDLIST anObject = m_Object;
+    m_Object = NULL;
+    return anObject;
+  }
+  void Free(); 
+  bool Create(UINT16 aPureSize);
+  operator LPITEMIDLIST() { return m_Object;}
+  operator LPCITEMIDLIST() const { return m_Object;}
+  LPITEMIDLIST* operator&() { return &m_Object; }
+  LPITEMIDLIST operator->() { return m_Object; }
+
+  CHolder& operator=(LPCITEMIDLIST anObject);
+  CHolder& operator=(const CHolder &anObject);
+};
+
+}
+
+class CItemIDListManager
+{
+public:
+  CItemIDListManager();
+  ~CItemIDListManager();
+public:
+  LPITEMIDLIST Create(UINT16 aPureSize);
+  void Delete(LPITEMIDLIST anIDList);
+  LPITEMIDLIST  Copy(LPCITEMIDLIST anIDListSrc);
+  // CZipIDData* GetDataPointer(LPCITEMIDLIST anIDList);
+  LPITEMIDLIST  Concatenate(LPCITEMIDLIST anIDList1, LPCITEMIDLIST anIDList2);
+private:
+  LPMALLOC m_pMalloc;
+};
+
+class CShellItemIDList
+{
+  CItemIDListManager *m_Manager;
+  LPITEMIDLIST m_Object;
+public:
+  CShellItemIDList(CItemIDListManager *aManager): 
+     m_Manager(aManager), 
+     m_Object(NULL) {}
+  bool Create(UINT16 aPureSize)
+  {   
+    Free();
+    m_Object = m_Manager->Create(aPureSize);
+    return (m_Object != NULL); 
+  }
+  ~CShellItemIDList() { Free(); }
+  void Free() 
+  { 
+    if(m_Object != NULL)
+      m_Manager->Delete(m_Object);
+    m_Object = NULL;
+  }
+  void Attach(LPITEMIDLIST anObject)
+  {
+    Free();
+    m_Object = anObject;
+  }
+  operator LPITEMIDLIST() { return m_Object;}
+  LPITEMIDLIST* operator&() { return &m_Object; }
+};
+
+#endif