ext/ResizableLib/ResizablePageEx.cpp

   1 // ResizablePageEx.cpp : implementation file
   2 //
   3 /////////////////////////////////////////////////////////////////////////////
   4 //
   5 // This file is part of ResizableLib
   6 // http://sourceforge.net/projects/resizablelib
   7 //
   8 // Copyright (C) 2000-2004 by Paolo Messina
   9 // http://www.geocities.com/ppescher - mailto:ppescher@hotmail.com
  10 //
  11 // The contents of this file are subject to the Artistic License (the "License").
  12 // You may not use this file except in compliance with the License.
  13 // You may obtain a copy of the License at:
  14 // http://www.opensource.org/licenses/artistic-license.html
  15 //
  16 // If you find this code useful, credits would be nice!
  17 //
  18 /////////////////////////////////////////////////////////////////////////////
  19
  20 #include "stdafx.h"
  21 #include "ResizablePageEx.h"
  22
  23 #ifdef _DEBUG
  24 #define new DEBUG_NEW
  25 #undef THIS_FILE
  26 static char THIS_FILE[] = __FILE__;
  27 #endif
  28
  29 /////////////////////////////////////////////////////////////////////////////
  30 // CResizablePageEx
  31
  32 IMPLEMENT_DYNCREATE(CResizablePageEx, CPropertyPageEx)
  33
  34 CResizablePageEx::CResizablePageEx()
  35 {
  36 }
  37
  38 CResizablePageEx::CResizablePageEx(UINT nIDTemplate, UINT nIDCaption, UINT nIDHeaderTitle, UINT nIDHeaderSubTitle)
  39         : CPropertyPageEx(nIDTemplate, nIDCaption, nIDHeaderTitle, nIDHeaderSubTitle)
  40 {
  41 }
  42
  43 CResizablePageEx::CResizablePageEx(LPCTSTR lpszTemplateName, UINT nIDCaption, UINT nIDHeaderTitle, UINT nIDHeaderSubTitle)
  44         : CPropertyPageEx(lpszTemplateName, nIDCaption, nIDHeaderTitle, nIDHeaderSubTitle)
  45 {
  46 }
  47
  48 CResizablePageEx::~CResizablePageEx()
  49 {
  50 }
  51
  52
  53 BEGIN_MESSAGE_MAP(CResizablePageEx, CPropertyPageEx)
  54         //{{AFX_MSG_MAP(CResizablePageEx)
  55         ON_WM_SIZE()
  56         ON_WM_ERASEBKGND()
  57         ON_WM_GETMINMAXINFO()
  58         ON_WM_DESTROY()
  59         ON_WM_CTLCOLOR()
  60         //}}AFX_MSG_MAP
  61 END_MESSAGE_MAP()
  62
  63
  64 /////////////////////////////////////////////////////////////////////////////
  65 // CResizablePageEx message handlers
  66
  67 void CResizablePageEx::OnSize(UINT nType, int cx, int cy)
  68 {
  69         CWnd::OnSize(nType, cx, cy);
  70
  71         ArrangeLayout();
  72
  73         if (m_psp.dwFlags & PSP_HIDEHEADER)
  74                 Invalidate();
  75 }
  76
  77 BOOL CResizablePageEx::OnEraseBkgnd(CDC* pDC)
  78 {
  79         ClipChildren(pDC, FALSE);
  80
  81         BOOL bRet = CPropertyPageEx::OnEraseBkgnd(pDC);
  82
  83         ClipChildren(pDC, TRUE);
  84
  85         return bRet;
  86 }
  87
  88 void CResizablePageEx::OnGetMinMaxInfo(MINMAXINFO FAR* lpMMI)
  89 {
  90         MinMaxInfo(lpMMI);
  91 }
  92
  93 BOOL CResizablePageEx::OnInitDialog()
  94 {
  95         CPropertyPageEx::OnInitDialog();
  96
  97         // set the initial size as the min track size
  98         CRect rc;
  99         GetWindowRect(&rc);
 100         SetMinTrackSize(rc.Size());
 101
 102         // HACK:  temporarily abandon subclassing
 103         // CAUSE: system subclasses this window after this message
 104         // ISSUE: our WindowProc is not the first to be called
 105         //        and we miss some painting related messages
 106         if (Attach(UnsubclassWindow()))
 107         {
 108                 CWnd* pParent = GetParent();
 109                 pParent->LockWindowUpdate();
 110                 Post_SheetPageExHack(pParent->GetSafeHwnd(), m_hWnd);
 111         }
 112
 113         return TRUE;  // return TRUE unless you set the focus to a control
 114                       // EXCEPTION: OCX Property Pages should return FALSE
 115 }
 116
 117 void CResizablePageEx::OnDestroy()
 118 {
 119         // remove child windows
 120         RemoveAllAnchors();
 121
 122         CPropertyPageEx::OnDestroy();
 123 }
 124
 125 HBRUSH CResizablePageEx::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
 126 {
 127         // NOTE: this message couldn't be catched without the above hack
 128
 129         HBRUSH hbr = CPropertyPageEx::OnCtlColor(pDC, pWnd, nCtlColor);
 130         if (hbr && (m_psp.dwFlags & PSP_HIDEHEADER))
 131         {
 132                 // reposition origin of background brush
 133                 // used for transparent effect on page controls
 134                 // (needed with double-buffering and XP themes)
 135                 CRect rect;
 136                 pWnd->GetWindowRect(rect);
 137                 pWnd->SendMessage(WM_NCCALCSIZE, FALSE, (LPARAM)&rect);
 138                 ScreenToClient(rect);
 139                 CPoint pt(-rect.TopLeft());
 140                 HDC hDC = pDC->GetSafeHdc();
 141                 ::LPtoDP(hDC, &pt, 1);
 142                 ::UnrealizeObject(hbr);
 143                 ::SetBrushOrgEx(hDC, pt.x, pt.y, NULL);
 144         }
 145         return hbr;
 146 }
 147
 148 LRESULT CResizablePageEx::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
 149 {
 150         if (message != WM_NCCALCSIZE || wParam == 0)
 151                 return CPropertyPageEx::WindowProc(message, wParam, lParam);
 152
 153         LRESULT lResult = 0;
 154         HandleNcCalcSize(FALSE, (LPNCCALCSIZE_PARAMS)lParam, lResult);
 155         lResult = CPropertyPageEx::WindowProc(message, wParam, lParam);
 156         HandleNcCalcSize(TRUE, (LPNCCALCSIZE_PARAMS)lParam, lResult);
 157         return lResult;
 158 }