orderer.cpp

一个完整的编辑器的代码（很值得参考

#include "stdafx.h"
#include "orderer.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

#pragma warning ( disable : 4711 )
/////////////////////////////////////////////////////////////////////////////
// COrderer

COrder::Set (DWORD nType, LPRECT lpRect, HWND hRel)
{
  type = nType;
  rc = lpRect;
  wnd = hRel;
}

COrderer::COrderer () : m_pWnd (NULL)
{
}

COrderer:: ~ COrderer ()
{
  RemoveAllChildren ();
}

void COrderer::
AddChild (HWND hWnd, DWORD nType, LPRECT lpRect, HWND hRel)
{
  COrder order;

//#ifndef NDEBUG
//  ASSERT (!m_lstWindows.Lookup (hWnd, order));
//#endif // NDEBUG
  order.Set (nType, lpRect, hRel);
  m_lstWindows.SetAt (hWnd, order);
  ASSERT (m_pWnd);
  CRect rc;
  m_pWnd->GetClientRect (rc);
  COrderer::OnSize (0, rc.Width (), rc.Height ());
}

void COrderer::
RemoveChild (HWND hWnd)
{
  m_lstWindows.RemoveKey (hWnd);
}

void COrderer::
RemoveAllChildren ()
{
  m_lstWindows.RemoveAll ();
}

#pragma warning ( disable : 4100 )
void COrderer::
OnSize (UINT nType, int cx, int cy)
{
  if (!m_lstWindows.IsEmpty ())
    {
      POSITION p = m_lstWindows.GetStartPosition ();
      HWND hWnd;
      COrder order;
      DWORD nMode;
      CWnd *w;
      bool rel;
      CRect rrel;

      ASSERT (p);
      do
        {
          m_lstWindows.GetNextAssoc (p, hWnd, order);
          if (::IsWindow (hWnd) && (w = CWnd::FromHandle (hWnd)) != NULL)
            {
              CRect rc;

              if (order.type)
                {
                  if (order.wnd &&::IsWindow (order.wnd))
                    {
                      rel = true;
                      CWnd::FromHandle (order.wnd)->GetWindowRect (rrel);
                    }
                  else
                    {
                      rel = false;
                    }
                  w->GetWindowRect (rc);
                  nMode = SWP_NOZORDER;
                  if (order.type & ORD_MOVE)
                    {
                      if (order.type & ORD_MOVE_X)
                        {
                          // !!! must be DeltaX
                          rc.left += cx;
                          rc.right += cx;
                        }
                      if (order.type & ORD_MOVE_Y)
                        {
                          // !!! must be DeltaY
                          rc.top += cy;
                          rc.bottom += cy;
                        }
                    }
                  else
                    {
                      nMode |= SWP_NOMOVE;
                    }
                  if (order.type & ORD_SIZE)
                    {
                      if (order.type & ORD_SIZE_X)
                        {
                          // !!! must be DeltaX
                          rc.right += cx;
                        }
                      if (order.type & ORD_SIZE_Y)
                        {
                          // !!! must be DeltaY
                          rc.bottom += cy;
                        }
                    }
                  else
                    {
                      nMode |= SWP_NOSIZE;
                    }
                  if (order.type & ORD_ZERO_BEGIN)
                    {
                      if (order.type & ORD_ZERO_LEFT)
                        {
                          rc.left = 0;
                        }
                      if (order.type & ORD_ZERO_TOP)
                        {
                          rc.top = 0;
                        }
                      nMode &= ~(SWP_NOMOVE | SWP_NOSIZE);
                    }
                  if (order.type & ORD_FULL_END)
                    {
                      if (order.type & ORD_FULL_RIGHT)
                        {
                          rc.right = cx + rc.left;
                        }
                      if (order.type & ORD_FULL_BOTTOM)
                        {
                          rc.bottom = cy + rc.top;
                        }
                      nMode &= ~SWP_NOSIZE;
                    }
                  if (order.type & ORD_SET_BEGIN)
                    {
                      if (order.type & ORD_SET_LEFT)
                        {
                          rc.left = rel ? rrel.left + order.rc.left : order.rc.left;
                        }
                      if (order.type & ORD_SET_TOP)
                        {
                          rc.top = rel ? rrel.top + order.rc.top : order.rc.top;
                        }
                      nMode &= ~(SWP_NOMOVE | SWP_NOSIZE);
                    }
                  if (order.type & ORD_SET_BACK_BEGIN)
                    {
                      if (order.type & ORD_SET_BACK_LEFT)
                        {
                          rc.left = rel ? rrel.right - order.rc.left : cx - order.rc.left;
                        }
                      if (order.type & ORD_SET_BACK_TOP)
                        {
                          rc.top = rel ? rrel.bottom - order.rc.top : cy - order.rc.top;
                        }
                      nMode &= ~(SWP_NOMOVE | SWP_NOSIZE);
                    }
                  if (order.type & ORD_SET_END)
                    {
                      if (order.type & ORD_SET_RIGHT)
                        {
                          rc.right = rel ? rrel.right + order.rc.right : order.rc.right;
                        }
                      if (order.type & ORD_SET_BOTTOM)
                        {
                          rc.bottom = rel ? rrel.bottom + order.rc.bottom : order.rc.bottom;
                        }
                      nMode &= ~SWP_NOSIZE;
                    }
                  if (order.type & ORD_SET_BACK_END)
                    {
                      if (order.type & ORD_SET_BACK_RIGHT)
                        {
                          rc.right = rel ? rrel.right - order.rc.right : cx - order.rc.right;
                        }
                      if (order.type & ORD_SET_BACK_BOTTOM)
                        {
                          rc.bottom = rel ? rrel.bottom - order.rc.bottom : cy - order.rc.bottom;
                        }
                      nMode &= ~SWP_NOSIZE;
                    }
                  if (order.type & ORD_SET_SIZE)
                    {
                      if (order.type & ORD_SET_WIDTH)
                        {
                          rc.right = rel ? rc.left + rrel.Width () + order.rc.Width () : rc.left + order.rc.Width ();
                        }
                      if (order.type & ORD_SET_HEIGHT)
                        {
                          rc.bottom = rel ? rc.top + rrel.Height () + order.rc.Height () : rc.top + order.rc.Height ();
                        }
                      nMode &= ~SWP_NOSIZE;
                    }
                  w->SetWindowPos (NULL, rc.left, rc.top, rc.Width (), rc.Height (), nMode);
                }
            }
        }
      while (p);
    }
}
#pragma warning ( default : 4100 )

/////////////////////////////////////////////////////////////////////////////
#pragma warning ( default : 4711 )