// ResizablePageEx.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 "ResizablePageEx.h"

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

/////////////////////////////////////////////////////////////////////////////
// CResizablePageEx

IMPLEMENT_DYNCREATE(CResizablePageEx, CPropertyPageEx)

CResizablePageEx::CResizablePageEx()
{
}

CResizablePageEx::CResizablePageEx(UINT nIDTemplate, UINT nIDCaption, UINT nIDHeaderTitle, UINT nIDHeaderSubTitle)
    : CPropertyPageEx(nIDTemplate, nIDCaption, nIDHeaderTitle, nIDHeaderSubTitle)
{
}

CResizablePageEx::CResizablePageEx(LPCTSTR lpszTemplateName, UINT nIDCaption, UINT nIDHeaderTitle, UINT nIDHeaderSubTitle)
    : CPropertyPageEx(lpszTemplateName, nIDCaption, nIDHeaderTitle, nIDHeaderSubTitle)
{
}

CResizablePageEx::~CResizablePageEx()
{
}


BEGIN_MESSAGE_MAP(CResizablePageEx, CPropertyPageEx)
    //{{AFX_MSG_MAP(CResizablePageEx)
    ON_WM_SIZE()
    ON_WM_ERASEBKGND()
    ON_WM_GETMINMAXINFO()
    ON_WM_DESTROY()
    ON_WM_CTLCOLOR()
    //}}AFX_MSG_MAP
END_MESSAGE_MAP()


/////////////////////////////////////////////////////////////////////////////
// CResizablePageEx message handlers

void CResizablePageEx::OnSize(UINT nType, int cx, int cy)
{
    CWnd::OnSize(nType, cx, cy);

    ArrangeLayout();

    if (m_psp.dwFlags & PSP_HIDEHEADER)
        Invalidate();
}

BOOL CResizablePageEx::OnEraseBkgnd(CDC* pDC)
{
    ClipChildren(pDC, FALSE);

    BOOL bRet = CPropertyPageEx::OnEraseBkgnd(pDC);

    ClipChildren(pDC, TRUE);

    return bRet;
}

void CResizablePageEx::OnGetMinMaxInfo(MINMAXINFO FAR* lpMMI)
{
    MinMaxInfo(lpMMI);
}

BOOL CResizablePageEx::OnInitDialog()
{
    CPropertyPageEx::OnInitDialog();

    // set the initial size as the min track size
    CRect rc;
    GetWindowRect(&rc);
    SetMinTrackSize(rc.Size());

    // HACK:  temporarily abandon subclassing
    // CAUSE: system subclasses this window after this message
    // ISSUE: our WindowProc is not the first to be called
    //        and we miss some painting related messages
    if (Attach(UnsubclassWindow()))
    {
        CWnd* pParent = GetParent();
        pParent->LockWindowUpdate();
        Post_SheetPageExHack(pParent->GetSafeHwnd(), m_hWnd);
    }

    return TRUE;  // return TRUE unless you set the focus to a control
                  // EXCEPTION: OCX Property Pages should return FALSE
}

void CResizablePageEx::OnDestroy()
{
    // remove child windows
    RemoveAllAnchors();

    CPropertyPageEx::OnDestroy();
}

HBRUSH CResizablePageEx::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
    // NOTE: this message couldn't be catched without the above hack

    HBRUSH hbr = CPropertyPageEx::OnCtlColor(pDC, pWnd, nCtlColor);
    if (hbr && (m_psp.dwFlags & PSP_HIDEHEADER))
    {
        // reposition origin of background brush
        // used for transparent effect on page controls
        // (needed with double-buffering and XP themes)
        CRect rect;
        pWnd->GetWindowRect(rect);
        pWnd->SendMessage(WM_NCCALCSIZE, FALSE, (LPARAM)&rect);
        ScreenToClient(rect);
        CPoint pt(-rect.TopLeft());
        HDC hDC = pDC->GetSafeHdc();
        ::LPtoDP(hDC, &pt, 1);
        ::UnrealizeObject(hbr);
        ::SetBrushOrgEx(hDC, pt.x, pt.y, NULL);
    }
    return hbr;
}

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

    LRESULT lResult = 0;
    HandleNcCalcSize(FALSE, (LPNCCALCSIZE_PARAMS)lParam, lResult);
    lResult = CPropertyPageEx::WindowProc(message, wParam, lParam);
    HandleNcCalcSize(TRUE, (LPNCCALCSIZE_PARAMS)lParam, lResult);
    return lResult;
}
