// ResizableMDIFrame.cpp : implementation file
//
/////////////////////////////////////////////////////////////////////////////
//
// This file is part of ResizableLib
// http://sourceforge.net/projects/resizablelib
//
// Copyright (C) 2000-2004 by Paolo Messina
// http://www.geocities.com/ppescher - mailto:ppescher@hotmail.com
//
// The contents of this file are subject to the Artistic License (the "License").
// You may not use this file except in compliance with the License.
// You may obtain a copy of the License at:
// http://www.opensource.org/licenses/artistic-license.html
//
// If you find this code useful, credits would be nice!
//
/////////////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "ResizableMDIFrame.h"

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

/////////////////////////////////////////////////////////////////////////////
// CResizableMDIFrame

IMPLEMENT_DYNCREATE(CResizableMDIFrame, CMDIFrameWnd)

CResizableMDIFrame::CResizableMDIFrame()
{
    m_bEnableSaveRestore = FALSE;
    m_bRectOnly = FALSE;
}

CResizableMDIFrame::~CResizableMDIFrame()
{
}


BEGIN_MESSAGE_MAP(CResizableMDIFrame, CMDIFrameWnd)
    //{{AFX_MSG_MAP(CResizableMDIFrame)
    ON_WM_GETMINMAXINFO()
    ON_WM_DESTROY()
    ON_WM_NCCREATE()
    ON_WM_WINDOWPOSCHANGING()
    //}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CResizableMDIFrame message handlers

void CResizableMDIFrame::OnGetMinMaxInfo(MINMAXINFO FAR* lpMMI)
{
    // MDI should call default implementation
    CMDIFrameWnd::OnGetMinMaxInfo(lpMMI);

    MinMaxInfo(lpMMI);

    BOOL bMaximized = FALSE;
    CMDIChildWnd* pChild = MDIGetActive(&bMaximized);
    if (pChild != NULL && bMaximized)
        ChainMinMaxInfo(lpMMI, this, pChild);
}

// NOTE: this must be called after setting the layout
//       to have the view and its controls displayed properly
BOOL CResizableMDIFrame::EnableSaveRestore(LPCTSTR pszSection, BOOL bRectOnly, BOOL bHorzResize, BOOL bVertResize)
{
    m_sSection = pszSection;

    m_bEnableSaveRestore = TRUE;
    m_bRectOnly = bRectOnly;

    // restore immediately
    return LoadWindowRect(pszSection, bRectOnly, bHorzResize, bVertResize);
}

void CResizableMDIFrame::OnDestroy()
{
    if (m_bEnableSaveRestore)
        SaveWindowRect(m_sSection, m_bRectOnly);

    CMDIFrameWnd::OnDestroy();
}

BOOL CResizableMDIFrame::OnNcCreate(LPCREATESTRUCT lpCreateStruct)
{
    if (!CMDIFrameWnd::OnNcCreate(lpCreateStruct))
        return FALSE;

    MakeResizable(lpCreateStruct);

    return TRUE;
}

LRESULT CResizableMDIFrame::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{
    if (message != WM_NCCALCSIZE || wParam == 0)
        return CMDIFrameWnd::WindowProc(message, wParam, lParam);

    // specifying valid rects needs controls already anchored
    LRESULT lResult = 0;
    HandleNcCalcSize(FALSE, (LPNCCALCSIZE_PARAMS)lParam, lResult);
    lResult = CMDIFrameWnd::WindowProc(message, wParam, lParam);
    HandleNcCalcSize(TRUE, (LPNCCALCSIZE_PARAMS)lParam, lResult);
    return lResult;
}

void CResizableMDIFrame::OnWindowPosChanging(WINDOWPOS FAR* lpwndpos)
{
    CMDIFrameWnd::OnWindowPosChanging(lpwndpos);

    // since this window class doesn't have the style CS_HREDRAW|CS_VREDRAW
    // the client area is not invalidated during a resize operation and
    // this prevents the system from using WM_NCCALCSIZE to validate rects
    Invalidate();
}