//MyList.cpp

#include "stdafx.h"
#include "mylist.h"

CMyBitmapList::CMyBitmapList()
{
   L_INT i;
   for (i=0; i<MAX_COUNT; i++)
      m_List[i] = NULL;
   m_nCount = 0;
}

CMyBitmapList::~CMyBitmapList()
{
   L_INT i;
   for (i=0; i<MAX_COUNT; i++)
      if (NULL != m_List[i])
      {
         delete(m_List[i]);
         m_List[i] = NULL;
      }
}

L_INT CMyBitmapList::NewBitmap()
{
   if (m_nCount == MAX_COUNT)
      return -1;

   m_List[m_nCount] =  new LBitmapWindow;
   m_nCount++;
   return m_nCount - 1;
}

LBitmapWindow* CMyBitmapList::operator[](L_INT nIndex)
{
   if ((nIndex < 0) || (nIndex >= MAX_COUNT) || (nIndex >= m_nCount))
      return NULL;
   
   return m_List[nIndex];
}

L_VOID CMyBitmapList::RemoveBitmap(L_INT nIndex)
{
   //internal function
   HWND hWndView = m_List[nIndex]->GetBitmapWnd();
   HWND hWnd = GetParent(hWndView);      
   m_List[nIndex]->SetWndHandle(NULL);
   DWORD dwStyle = ::GetWindowLong(hWndView, GWL_STYLE);
   dwStyle &= ~(WS_HSCROLL | WS_VSCROLL);
   ::SetWindowLong(hWndView,GWL_STYLE, dwStyle);
   ::SetWindowPos(hWndView, NULL, 0, 0, 0, 0, SWP_FRAMECHANGED | SWP_NOMOVE | SWP_NOSIZE);
   delete m_List[nIndex];
   ::InvalidateRect(hWnd, NULL, TRUE);
   m_List[nIndex] = 0;
}

L_INT CMyBitmapList::DeleteLastBitmap()
{
   L_INT nRet;
   if (m_nCount > 0)
   {
      m_nCount--;
      RemoveBitmap(m_nCount);
      nRet = FAILURE;
   }
   else
   {
      nRet = FAILURE;
   }
   return nRet;
}

L_INT CMyBitmapList::DeleteBitmap(L_INT nIndex)
{
   if ((nIndex < 0) || (nIndex >= MAX_COUNT) || (nIndex >= m_nCount))
      return FAILURE;

   if (nIndex + 1 == m_nCount)
   {
      DeleteLastBitmap();
   }
   else
   {
      RemoveBitmap(nIndex);
   }
   return SUCCESS;
}

L_INT CMyBitmapList::AddBitmap(L_TCHAR *pszFileName, L_INT nBitsPerPixel, L_INT nOrder)
{
   L_INT nIndex = -1;

   nIndex = NewBitmap();
   if (nIndex != -1)
   {
      L_INT nRet;
      nRet = m_List[nIndex]->Load(pszFileName, nBitsPerPixel, nOrder);
      if (nRet != SUCCESS)
      {
         nIndex = -1;
         DeleteLastBitmap();
      }
   }
   return nIndex;
}


L_INT CMyBitmapList::AddBitmap(LBitmapBase &MyBitmapBase)
{
   L_INT nIndex = -1;

   nIndex = NewBitmap();
   if (nIndex != -1)
   {
      L_INT nRet;
      nRet = m_List[nIndex]->Copy(MyBitmapBase);
      if (nRet != SUCCESS)
      {
         nIndex = -1;
         DeleteLastBitmap();
      }
   }
   return nIndex;
}

L_INT CMyBitmapList::GetCount()
{
   L_INT nCount = 0;
   L_INT i;

   for (i=0; i<m_nCount; i++)
   {
      if (m_List[i] != NULL)
         nCount++;
   }
   return nCount;
}