ext/ResizableLib/ResizableSheetEx.cpp

   1 // ResizableSheetEx.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 "ResizableSheetEx.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 // CResizableSheetEx
  31
  32 IMPLEMENT_DYNAMIC(CResizableSheetEx, CPropertySheetEx)
  33
  34 inline BOOL CResizableSheetEx::IsWizard() const
  35 {
  36         return (m_psh.dwFlags & PSH_WIZARD);
  37 }
  38
  39 inline BOOL CResizableSheetEx::IsWizard97() const
  40 {
  41         return (m_psh.dwFlags & (PSH_IE4WIZARD97 | PSH_IE5WIZARD97));
  42 }
  43
  44 CResizableSheetEx::CResizableSheetEx()
  45 {
  46 }
  47
  48 CResizableSheetEx::CResizableSheetEx(UINT nIDCaption, CWnd* pParentWnd,
  49         UINT iSelectPage, HBITMAP hbmWatermark, HPALETTE hpalWatermark,
  50         HBITMAP hbmHeader)
  51 : CPropertySheetEx(nIDCaption, pParentWnd, iSelectPage,
  52                                   hbmWatermark, hpalWatermark, hbmHeader)
  53 {
  54 }
  55
  56 CResizableSheetEx::CResizableSheetEx(LPCTSTR pszCaption, CWnd* pParentWnd,
  57         UINT iSelectPage, HBITMAP hbmWatermark, HPALETTE hpalWatermark,
  58         HBITMAP hbmHeader)
  59 : CPropertySheetEx(pszCaption, pParentWnd, iSelectPage,
  60                                           hbmWatermark, hpalWatermark, hbmHeader)
  61 {
  62 }
  63
  64
  65 CResizableSheetEx::~CResizableSheetEx()
  66 {
  67 }
  68
  69 BEGIN_MESSAGE_MAP(CResizableSheetEx, CPropertySheetEx)
  70         //{{AFX_MSG_MAP(CResizableSheetEx)
  71         ON_WM_GETMINMAXINFO()
  72         ON_WM_SIZE()
  73         ON_WM_DESTROY()
  74         ON_WM_ERASEBKGND()
  75         ON_WM_NCCREATE()
  76         //}}AFX_MSG_MAP
  77         ON_NOTIFY_REFLECT_EX(PSN_SETACTIVE, OnPageChanging)
  78         ON_REGISTERED_MESSAGE(WMU_RESIZESUPPORT, OnResizeSupport)
  79 END_MESSAGE_MAP()
  80
  81 /////////////////////////////////////////////////////////////////////////////
  82 // CResizableSheetEx message handlers
  83
  84 BOOL CResizableSheetEx::OnNcCreate(LPCREATESTRUCT lpCreateStruct)
  85 {
  86         if (!CPropertySheetEx::OnNcCreate(lpCreateStruct))
  87                 return FALSE;
  88
  89         // child dialogs don't want resizable border or size grip,
  90         // nor they can handle the min/max size constraints
  91         BOOL bChild = lpCreateStruct->style & WS_CHILD;
  92
  93         // create and init the size-grip
  94         if (!CreateSizeGrip(!bChild))
  95                 return FALSE;
  96
  97         MakeResizable(lpCreateStruct);
  98
  99         return TRUE;
 100 }
 101
 102 BOOL CResizableSheetEx::OnInitDialog()
 103 {
 104         BOOL bResult = CPropertySheetEx::OnInitDialog();
 105
 106         // set the initial size as the min track size
 107         CRect rc;
 108         GetWindowRect(&rc);
 109         SetMinTrackSize(rc.Size());
 110
 111         // initialize layout
 112         PresetLayout();
 113         m_bLayoutDone = TRUE;
 114
 115         return bResult;
 116 }
 117
 118 LRESULT CResizableSheetEx::OnResizeSupport(WPARAM wParam, LPARAM lParam)
 119 {
 120         switch (wParam)
 121         {
 122         case RSZSUP_SHEETPAGEEXHACK:
 123                 {
 124                         // a window object must be still associated to the page handle
 125                         // but MFC subclassing has been turned off to allow the system
 126                         // to subclass it first, so we can catch all the messages
 127                         CWnd* pWnd = CWnd::FromHandlePermanent((HWND)lParam);
 128                         if (pWnd == NULL)
 129                                 return 0;
 130
 131                         // suclass the window again and refresh page and sheet
 132                         pWnd->SubclassWindow(pWnd->Detach());
 133                         RefreshLayout();
 134                         pWnd->SendMessage(WM_SIZE);
 135                         Invalidate();
 136                         UnlockWindowUpdate();
 137
 138                         if (pWnd->IsWindowVisible())
 139                         {
 140                                 // send lost PSN_SETACTIVE notification message
 141                                 CPropertyPage* pPage = DYNAMIC_DOWNCAST(CPropertyPage, pWnd);
 142                                 if (pPage != NULL)
 143                                         SetActivePage(pPage);
 144                         }
 145                 }
 146                 break;
 147
 148         default:
 149                 return FALSE;
 150         }
 151         return TRUE;
 152 }
 153
 154 void CResizableSheetEx::OnDestroy()
 155 {
 156         if (m_bEnableSaveRestore)
 157         {
 158                 SaveWindowRect(m_sSection, m_bRectOnly);
 159                 if (m_bSavePage)
 160                         SavePage(m_sSection);
 161         }
 162
 163         RemoveAllAnchors();
 164
 165         CPropertySheetEx::OnDestroy();
 166 }
 167
 168 // maps an index to a button ID and vice-versa
 169 static UINT _propButtons[] =
 170 {
 171         IDOK, IDCANCEL, ID_APPLY_NOW, IDHELP,
 172         ID_WIZBACK, ID_WIZNEXT, ID_WIZFINISH
 173 };
 174 const int _propButtonsCount = sizeof(_propButtons)/sizeof(UINT);
 175
 176 // horizontal line in wizard mode
 177 #define ID_WIZLINE              ID_WIZFINISH+1
 178 #define ID_WIZLINEHDR   ID_WIZFINISH+2
 179
 180 void CResizableSheetEx::PresetLayout()
 181 {
 182         if (IsWizard() || IsWizard97()) // wizard mode
 183         {
 184                 // hide tab control
 185                 GetTabControl()->ShowWindow(SW_HIDE);
 186
 187                 AddAnchor(ID_WIZLINE, BOTTOM_LEFT, BOTTOM_RIGHT);
 188
 189                 if (IsWizard97())       // add header line for wizard97 dialogs
 190                         AddAnchor(ID_WIZLINEHDR, TOP_LEFT, TOP_RIGHT);
 191         }
 192         else    // tab mode
 193         {
 194                 AddAnchor(AFX_IDC_TAB_CONTROL, TOP_LEFT, BOTTOM_RIGHT);
 195         }
 196
 197         // add a callback for active page (which can change at run-time)
 198         m_nCallbackID = AddAnchorCallback();
 199
 200         // use *total* parent size to have correct margins
 201         CRect rectPage, rectSheet;
 202         GetTotalClientRect(&rectSheet);
 203
 204         GetActivePage()->GetWindowRect(&rectPage);
 205         ::MapWindowPoints(NULL, m_hWnd, (LPPOINT)&rectPage, 2);
 206
 207         // pre-calculate margins
 208         m_sizePageTL = rectPage.TopLeft() - rectSheet.TopLeft();
 209         m_sizePageBR = rectPage.BottomRight() - rectSheet.BottomRight();
 210
 211         // add all possible buttons, if they exist
 212         for (int i = 0; i < _propButtonsCount; i++)
 213         {
 214                 if (NULL != GetDlgItem(_propButtons[i]))
 215                         AddAnchor(_propButtons[i], BOTTOM_RIGHT);
 216         }
 217 }
 218
 219 BOOL CResizableSheetEx::ArrangeLayoutCallback(LAYOUTINFO &layout) const
 220 {
 221         if (layout.nCallbackID != m_nCallbackID)        // we only added 1 callback
 222                 return CResizableLayout::ArrangeLayoutCallback(layout);
 223
 224         // set layout info for active page
 225         layout.hWnd = (HWND)::SendMessage(GetSafeHwnd(), PSM_GETCURRENTPAGEHWND, 0, 0);
 226         if (!::IsWindow(layout.hWnd))
 227                 return FALSE;
 228
 229         // set margins
 230         if (IsWizard()) // wizard mode
 231         {
 232                 // use pre-calculated margins
 233                 layout.marginTopLeft = m_sizePageTL;
 234                 layout.marginBottomRight = m_sizePageBR;
 235         }
 236         else if (IsWizard97())  // wizard 97
 237         {
 238                 // use pre-calculated margins
 239                 layout.marginTopLeft = m_sizePageTL;
 240                 layout.marginBottomRight = m_sizePageBR;
 241
 242                 if (!(GetActivePage()->m_psp.dwFlags & PSP_HIDEHEADER))
 243                 {
 244                         // add header vertical offset
 245                         CRect rectLine, rectSheet;
 246                         GetTotalClientRect(&rectSheet);
 247                         GetAnchorPosition(ID_WIZLINEHDR, rectSheet, rectLine);
 248
 249                         layout.marginTopLeft.cy = rectLine.bottom;
 250                 }
 251         }
 252         else    // tab mode
 253         {
 254                 CTabCtrl* pTab = GetTabControl();
 255                 ASSERT(pTab != NULL);
 256
 257                 // get tab position after resizing and calc page rect
 258                 CRect rectPage, rectSheet;
 259                 GetTotalClientRect(&rectSheet);
 260
 261                 if (!GetAnchorPosition(pTab->m_hWnd, rectSheet, rectPage))
 262                         return FALSE; // no page yet
 263
 264                 // temporarily resize the tab control to calc page size
 265                 CRect rectSave;
 266                 pTab->GetWindowRect(rectSave);
 267                 ::MapWindowPoints(NULL, m_hWnd, (LPPOINT)&rectSave, 2);
 268                 pTab->SetRedraw(FALSE);
 269                 pTab->MoveWindow(rectPage, FALSE);
 270                 pTab->AdjustRect(FALSE, &rectPage);
 271                 pTab->MoveWindow(rectSave, FALSE);
 272                 pTab->SetRedraw(TRUE);
 273
 274                 // set margins
 275                 layout.marginTopLeft = rectPage.TopLeft() - rectSheet.TopLeft();
 276                 layout.marginBottomRight = rectPage.BottomRight() - rectSheet.BottomRight();
 277         }
 278
 279         // set anchor types
 280         layout.anchorTopLeft = TOP_LEFT;
 281         layout.anchorBottomRight = BOTTOM_RIGHT;
 282
 283         // use this layout info
 284         return TRUE;
 285 }
 286
 287 void CResizableSheetEx::OnSize(UINT nType, int cx, int cy)
 288 {
 289         CWnd::OnSize(nType, cx, cy);
 290
 291         if (nType == SIZE_MAXHIDE || nType == SIZE_MAXSHOW)
 292                 return;         // arrangement not needed
 293
 294         if (nType == SIZE_MAXIMIZED)
 295                 HideSizeGrip(&m_dwGripTempState);
 296         else
 297                 ShowSizeGrip(&m_dwGripTempState);
 298
 299         // update grip and layout
 300         UpdateSizeGrip();
 301         ArrangeLayout();
 302
 303         if (IsWizard97())
 304         {
 305                 // refresh header area
 306                 CRect rect;
 307                 GetHeaderRect(rect);
 308                 InvalidateRect(rect, FALSE);
 309         }
 310 }
 311
 312 BOOL CResizableSheetEx::OnPageChanging(NMHDR* /*pNotifyStruct*/, LRESULT* /*pResult*/)
 313 {
 314         // update new wizard page
 315         // active page changes after this notification
 316         PostMessage(WM_SIZE);
 317
 318         return FALSE;   // continue routing
 319 }
 320
 321 BOOL CResizableSheetEx::OnEraseBkgnd(CDC* pDC)
 322 {
 323         if (ClipChildren(pDC, FALSE))
 324         {
 325                 // when clipping, remove header from clipping area
 326                 if (IsWizard97())
 327                 {
 328                         // clip header area out
 329                         CRect rect;
 330                         GetHeaderRect(rect);
 331                         pDC->ExcludeClipRect(rect);
 332                 }
 333         }
 334
 335         BOOL bRet = CPropertySheetEx::OnEraseBkgnd(pDC);
 336
 337         ClipChildren(pDC, TRUE);
 338
 339         return bRet;
 340 }
 341
 342 BOOL CResizableSheetEx::CalcSizeExtra(HWND /*hWndChild*/, CSize sizeChild, CSize &sizeExtra)
 343 {
 344         CTabCtrl* pTab = GetTabControl();
 345         if (!pTab)
 346                 return FALSE;
 347
 348         // get margins of tabcontrol
 349         CRect rectMargins;
 350         if (!GetAnchorMargins(pTab->m_hWnd, sizeChild, rectMargins))
 351                 return FALSE;
 352
 353         // get margin caused by tabcontrol
 354         CRect rectTabMargins(0,0,0,0);
 355
 356         // get tab position after resizing and calc page rect
 357         CRect rectPage, rectSheet;
 358         GetTotalClientRect(&rectSheet);
 359
 360         if (!GetAnchorPosition(pTab->m_hWnd, rectSheet, rectPage))
 361                 return FALSE; // no page yet
 362
 363         // temporarily resize the tab control to calc page size
 364         CRect rectSave;
 365         pTab->GetWindowRect(rectSave);
 366         ::MapWindowPoints(NULL, m_hWnd, (LPPOINT)&rectSave, 2);
 367         pTab->SetRedraw(FALSE);
 368         pTab->MoveWindow(rectPage, FALSE);
 369         pTab->AdjustRect(TRUE, &rectTabMargins);
 370         pTab->MoveWindow(rectSave, FALSE);
 371         pTab->SetRedraw(TRUE);
 372
 373         // add non-client size
 374         ::AdjustWindowRectEx(&rectTabMargins, GetStyle(), !(GetStyle() & WS_CHILD) &&
 375                 ::IsMenu(GetMenu()->GetSafeHmenu()), GetExStyle());
 376
 377         // compute extra size
 378         sizeExtra = rectMargins.TopLeft() + rectMargins.BottomRight() +
 379                 rectTabMargins.Size();
 380         return TRUE;
 381 }
 382
 383 void CResizableSheetEx::OnGetMinMaxInfo(MINMAXINFO FAR* lpMMI)
 384 {
 385         MinMaxInfo(lpMMI);
 386
 387         CTabCtrl* pTab = GetTabControl();
 388         if (!pTab)
 389                 return;
 390
 391         int nCount = GetPageCount();
 392         for (int idx = 0; idx < nCount; ++idx)
 393         {
 394                 if (IsWizard()) // wizard mode
 395                 {
 396                         // use pre-calculated margins
 397                         CRect rectExtra(-CPoint(m_sizePageTL), -CPoint(m_sizePageBR));
 398                         // add non-client size
 399                         ::AdjustWindowRectEx(&rectExtra, GetStyle(), !(GetStyle() & WS_CHILD) &&
 400                                 ::IsMenu(GetMenu()->GetSafeHmenu()), GetExStyle());
 401                         ChainMinMaxInfo(lpMMI, *GetPage(idx), rectExtra.Size());
 402                 }
 403                 else if (IsWizard97())  // wizard 97
 404                 {
 405                         // use pre-calculated margins
 406                         CRect rectExtra(-CPoint(m_sizePageTL), -CPoint(m_sizePageBR));
 407
 408                         if (!(GetPage(idx)->m_psp.dwFlags & PSP_HIDEHEADER))
 409                         {
 410                                 // add header vertical offset
 411                                 CRect rectLine, rectSheet;
 412                                 GetTotalClientRect(&rectSheet);
 413                                 GetAnchorPosition(ID_WIZLINEHDR, rectSheet, rectLine);
 414
 415                                 rectExtra.top = -rectLine.bottom;
 416                         }
 417                         // add non-client size
 418                         ::AdjustWindowRectEx(&rectExtra, GetStyle(), !(GetStyle() & WS_CHILD) &&
 419                                 ::IsMenu(GetMenu()->GetSafeHmenu()), GetExStyle());
 420                         ChainMinMaxInfo(lpMMI, *GetPage(idx), rectExtra.Size());
 421                 }
 422                 else    // tab mode
 423                 {
 424                         ChainMinMaxInfoCB(lpMMI, *GetPage(idx));
 425                 }
 426         }
 427 }
 428
 429 // protected members
 430
 431 void CResizableSheetEx::GetHeaderRect(LPRECT lpRect)
 432 {
 433         CWnd* pWizLineHdr = GetDlgItem(ID_WIZLINEHDR);
 434         if (pWizLineHdr != NULL && pWizLineHdr->IsWindowVisible())
 435         {
 436                 pWizLineHdr->GetWindowRect(lpRect);
 437                 ::MapWindowPoints(NULL, m_hWnd, (LPPOINT)lpRect, 2);
 438                 LONG bottom = lpRect->top;
 439                 GetClientRect(lpRect);
 440                 lpRect->bottom = bottom;
 441         }
 442         else
 443                 ::SetRectEmpty(lpRect);
 444 }
 445
 446 int CResizableSheetEx::GetMinWidth()
 447 {
 448         CWnd* pWnd = NULL;
 449         CRect rectWnd, rectSheet;
 450         GetTotalClientRect(&rectSheet);
 451
 452         int max = 0, min = rectSheet.Width();
 453         // search for leftmost and rightmost button margins
 454         for (int i = 0; i < 7; i++)
 455         {
 456                 pWnd = GetDlgItem(_propButtons[i]);
 457                 // exclude not present or hidden buttons
 458                 if (pWnd == NULL || !(pWnd->GetStyle() & WS_VISIBLE))
 459                         continue;
 460
 461                 // left position is relative to the right border
 462                 // of the parent window (negative value)
 463                 pWnd->GetWindowRect(&rectWnd);
 464                 ::MapWindowPoints(NULL, m_hWnd, (LPPOINT)&rectWnd, 2);
 465                 int left = rectSheet.right - rectWnd.left;
 466                 int right = rectSheet.right - rectWnd.right;
 467
 468                 if (left > max)
 469                         max = left;
 470                 if (right < min)
 471                         min = right;
 472         }
 473
 474         // sizing border width
 475         int border = GetSystemMetrics(SM_CXSIZEFRAME);
 476
 477         // compute total width
 478         return max + min + 2*border;
 479 }
 480
 481 // NOTE: this must be called after all the other settings
 482 //       to have the window and its controls displayed properly
 483 void CResizableSheetEx::EnableSaveRestore(LPCTSTR pszSection, BOOL bRectOnly, BOOL bWithPage, BOOL bHorzResize, BOOL bVertResize)
 484 {
 485         m_sSection = pszSection;
 486         m_bSavePage = bWithPage;
 487
 488         m_bEnableSaveRestore = TRUE;
 489         m_bRectOnly = bRectOnly;
 490
 491         // restore immediately
 492         LoadWindowRect(pszSection, bRectOnly, bHorzResize, bVertResize);
 493         if (bWithPage)
 494         {
 495                 LoadPage(pszSection);
 496                 ArrangeLayout();        // needs refresh
 497         }
 498 }
 499
 500 void CResizableSheetEx::RefreshLayout()
 501 {
 502         SendMessage(WM_SIZE);
 503 }
 504
 505 LRESULT CResizableSheetEx::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
 506 {
 507         if (message != WM_NCCALCSIZE || wParam == 0 || !m_bLayoutDone)
 508                 return CPropertySheetEx::WindowProc(message, wParam, lParam);
 509
 510         // specifying valid rects needs controls already anchored
 511         LRESULT lResult = 0;
 512         HandleNcCalcSize(FALSE, (LPNCCALCSIZE_PARAMS)lParam, lResult);
 513         lResult = CPropertySheetEx::WindowProc(message, wParam, lParam);
 514         HandleNcCalcSize(TRUE, (LPNCCALCSIZE_PARAMS)lParam, lResult);
 515         return lResult;
 516 }
 517
 518 int CALLBACK CResizableSheetEx::XmnPropSheetCallback(HWND hWnd, UINT message, LPARAM lParam)
 519 {
 520         extern int CALLBACK AfxPropSheetCallback(HWND, UINT message, LPARAM lParam);
 521         // XMN: Call MFC's callback
 522         int nRes = AfxPropSheetCallback(hWnd, message, lParam);
 523
 524         switch (message)
 525         {
 526         case PSCB_PRECREATE:
 527                 // Change the font and font size
 528                 auto pResource = reinterpret_cast<LPDLGTEMPLATE>(lParam);
 529                 CDialogTemplate dlgTemplate(pResource);
 530                 dlgTemplate.SetFont(L"Segoe UI", 9);
 531                 memmove((void*)lParam, dlgTemplate.m_hTemplate, dlgTemplate.m_dwTemplateSize);
 532                 break;
 533         }
 534         return nRes;
 535 }
 536
 537 // Overriding DoModal() allows us to hook our callback into
 538 //    the prop sheet creation
 539 INT_PTR CResizableSheetEx::DoModal()
 540 {
 541         // Hook into property sheet creation code
 542         m_psh.dwFlags |= PSH_USECALLBACK;
 543         m_psh.pfnCallback = XmnPropSheetCallback;
 544         return CPropertySheet::DoModal();
 545 }