src/msw/notebook.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/notebook.cpp
   3 // Purpose:     implementation of wxNotebook
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     11.06.98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "notebook.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20     #pragma hdrstop
  21 #endif
  22
  23 #if wxUSE_NOTEBOOK
  24
  25 // wxWindows
  26 #ifndef WX_PRECOMP
  27   #include  "wx/string.h"
  28 #endif  // WX_PRECOMP
  29
  30 #include  "wx/log.h"
  31 #include  "wx/imaglist.h"
  32 #include  "wx/event.h"
  33 #include  "wx/control.h"
  34 #include  "wx/notebook.h"
  35 #include  "wx/app.h"
  36
  37 #include  "wx/msw/private.h"
  38
  39 // Windows standard headers
  40 #ifndef   __WIN95__
  41   #error  "wxNotebook is only supported Windows 95 and above"
  42 #endif    //Win95
  43
  44 #include  <windowsx.h>  // for SetWindowFont
  45
  46 #ifdef __GNUWIN32_OLD__
  47     #include "wx/msw/gnuwin32/extra.h"
  48 #endif
  49
  50 #if defined(__WIN95__) && !(defined(__GNUWIN32_OLD__) && !defined(__CYGWIN10__))
  51     #include <commctrl.h>
  52 #endif
  53
  54 #include "wx/msw/winundef.h"
  55
  56 #if wxUSE_UXTHEME
  57 #include "wx/msw/uxtheme.h"
  58
  59 #include "wx/radiobut.h"
  60 #include "wx/radiobox.h"
  61 #include "wx/checkbox.h"
  62 #include "wx/bmpbuttn.h"
  63 #include "wx/statline.h"
  64 #include "wx/statbox.h"
  65 #include "wx/stattext.h"
  66 #include "wx/slider.h"
  67 #include "wx/scrolwin.h"
  68 #include "wx/panel.h"
  69 #endif
  70
  71 // ----------------------------------------------------------------------------
  72 // macros
  73 // ----------------------------------------------------------------------------
  74
  75 // check that the page index is valid
  76 #define IS_VALID_PAGE(nPage) (((nPage) >= 0) && ((nPage) < GetPageCount()))
  77
  78 // hide the ugly cast
  79 #define m_hwnd    (HWND)GetHWND()
  80
  81 // ----------------------------------------------------------------------------
  82 // constants
  83 // ----------------------------------------------------------------------------
  84
  85 // This is a work-around for missing defines in gcc-2.95 headers
  86 #ifndef TCS_RIGHT
  87     #define TCS_RIGHT       0x0002
  88 #endif
  89
  90 #ifndef TCS_VERTICAL
  91     #define TCS_VERTICAL    0x0080
  92 #endif
  93
  94 #ifndef TCS_BOTTOM
  95     #define TCS_BOTTOM      TCS_RIGHT
  96 #endif
  97
  98 // ----------------------------------------------------------------------------
  99 // event table
 100 // ----------------------------------------------------------------------------
 101
 102 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED)
 103 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING)
 104
 105 BEGIN_EVENT_TABLE(wxNotebook, wxControl)
 106     EVT_NOTEBOOK_PAGE_CHANGED(-1, wxNotebook::OnSelChange)
 107
 108     EVT_SIZE(wxNotebook::OnSize)
 109
 110     EVT_SET_FOCUS(wxNotebook::OnSetFocus)
 111
 112     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
 113 END_EVENT_TABLE()
 114
 115 IMPLEMENT_DYNAMIC_CLASS(wxNotebook, wxControl)
 116 IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxNotifyEvent)
 117
 118 // ============================================================================
 119 // implementation
 120 // ============================================================================
 121
 122 // ----------------------------------------------------------------------------
 123 // wxNotebook construction
 124 // ----------------------------------------------------------------------------
 125
 126 // common part of all ctors
 127 void wxNotebook::Init()
 128 {
 129   m_imageList = NULL;
 130   m_nSelection = -1;
 131 }
 132
 133 // default for dynamic class
 134 wxNotebook::wxNotebook()
 135 {
 136   Init();
 137 }
 138
 139 // the same arguments as for wxControl
 140 wxNotebook::wxNotebook(wxWindow *parent,
 141                        wxWindowID id,
 142                        const wxPoint& pos,
 143                        const wxSize& size,
 144                        long style,
 145                        const wxString& name)
 146 {
 147   Init();
 148
 149   Create(parent, id, pos, size, style, name);
 150 }
 151
 152 // Create() function
 153 bool wxNotebook::Create(wxWindow *parent,
 154                         wxWindowID id,
 155                         const wxPoint& pos,
 156                         const wxSize& size,
 157                         long style,
 158                         const wxString& name)
 159 {
 160     // Does ComCtl32 support non-top tabs?
 161     int verComCtl32 = wxApp::GetComCtl32Version();
 162     if ( verComCtl32 < 470 || verComCtl32 >= 600 )
 163     {
 164         if (style & wxNB_BOTTOM)
 165             style &= ~wxNB_BOTTOM;
 166
 167         if (style & wxNB_LEFT)
 168             style &= ~wxNB_LEFT;
 169
 170         if (style & wxNB_RIGHT)
 171             style &= ~wxNB_RIGHT;
 172     }
 173
 174     if ( !CreateControl(parent, id, pos, size, style | wxTAB_TRAVERSAL,
 175                         wxDefaultValidator, name) )
 176         return FALSE;
 177
 178     if ( !MSWCreateControl(WC_TABCONTROL, _T(""), pos, size) )
 179         return FALSE;
 180
 181     SetBackgroundColour(wxColour(::GetSysColor(COLOR_BTNFACE)));
 182
 183     return TRUE;
 184 }
 185
 186 WXDWORD wxNotebook::MSWGetStyle(long style, WXDWORD *exstyle) const
 187 {
 188     WXDWORD tabStyle = wxControl::MSWGetStyle(style, exstyle);
 189
 190     tabStyle |= WS_TABSTOP | TCS_TABS;
 191
 192     if ( style & wxNB_MULTILINE )
 193         tabStyle |= TCS_MULTILINE;
 194     if ( style & wxNB_FIXEDWIDTH )
 195         tabStyle |= TCS_FIXEDWIDTH;
 196
 197     if ( style & wxNB_BOTTOM )
 198         tabStyle |= TCS_RIGHT;
 199     else if ( style & wxNB_LEFT )
 200         tabStyle |= TCS_VERTICAL;
 201     else if ( style & wxNB_RIGHT )
 202         tabStyle |= TCS_VERTICAL | TCS_RIGHT;
 203
 204     // ex style
 205     if ( exstyle )
 206     {
 207         // note that we never want to have the default WS_EX_CLIENTEDGE style
 208         // as it looks too ugly for the notebooks
 209         *exstyle = 0;
 210     }
 211
 212     return tabStyle;
 213 }
 214
 215 // ----------------------------------------------------------------------------
 216 // wxNotebook accessors
 217 // ----------------------------------------------------------------------------
 218
 219 int wxNotebook::GetPageCount() const
 220 {
 221   // consistency check
 222   wxASSERT( (int)m_pages.Count() == TabCtrl_GetItemCount(m_hwnd) );
 223
 224   return m_pages.Count();
 225 }
 226
 227 int wxNotebook::GetRowCount() const
 228 {
 229   return TabCtrl_GetRowCount(m_hwnd);
 230 }
 231
 232 int wxNotebook::SetSelection(int nPage)
 233 {
 234   wxCHECK_MSG( IS_VALID_PAGE(nPage), -1, wxT("notebook page out of range") );
 235
 236   if ( nPage != m_nSelection )
 237   {
 238     wxNotebookEvent event(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING, m_windowId);
 239     event.SetSelection(nPage);
 240     event.SetOldSelection(m_nSelection);
 241     event.SetEventObject(this);
 242     if ( !GetEventHandler()->ProcessEvent(event) || event.IsAllowed() )
 243     {
 244       // program allows the page change
 245       event.SetEventType(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED);
 246       (void)GetEventHandler()->ProcessEvent(event);
 247
 248       TabCtrl_SetCurSel(m_hwnd, nPage);
 249     }
 250   }
 251
 252   return m_nSelection;
 253 }
 254
 255 bool wxNotebook::SetPageText(int nPage, const wxString& strText)
 256 {
 257   wxCHECK_MSG( IS_VALID_PAGE(nPage), FALSE, wxT("notebook page out of range") );
 258
 259   TC_ITEM tcItem;
 260   tcItem.mask = TCIF_TEXT;
 261   tcItem.pszText = (wxChar *)strText.c_str();
 262
 263   return TabCtrl_SetItem(m_hwnd, nPage, &tcItem) != 0;
 264 }
 265
 266 wxString wxNotebook::GetPageText(int nPage) const
 267 {
 268   wxCHECK_MSG( IS_VALID_PAGE(nPage), wxT(""), wxT("notebook page out of range") );
 269
 270   wxChar buf[256];
 271   TC_ITEM tcItem;
 272   tcItem.mask = TCIF_TEXT;
 273   tcItem.pszText = buf;
 274   tcItem.cchTextMax = WXSIZEOF(buf);
 275
 276   wxString str;
 277   if ( TabCtrl_GetItem(m_hwnd, nPage, &tcItem) )
 278     str = tcItem.pszText;
 279
 280   return str;
 281 }
 282
 283 int wxNotebook::GetPageImage(int nPage) const
 284 {
 285   wxCHECK_MSG( IS_VALID_PAGE(nPage), -1, wxT("notebook page out of range") );
 286
 287   TC_ITEM tcItem;
 288   tcItem.mask = TCIF_IMAGE;
 289
 290   return TabCtrl_GetItem(m_hwnd, nPage, &tcItem) ? tcItem.iImage : -1;
 291 }
 292
 293 bool wxNotebook::SetPageImage(int nPage, int nImage)
 294 {
 295   wxCHECK_MSG( IS_VALID_PAGE(nPage), FALSE, wxT("notebook page out of range") );
 296
 297   TC_ITEM tcItem;
 298   tcItem.mask = TCIF_IMAGE;
 299   tcItem.iImage = nImage;
 300
 301   return TabCtrl_SetItem(m_hwnd, nPage, &tcItem) != 0;
 302 }
 303
 304 void wxNotebook::SetImageList(wxImageList* imageList)
 305 {
 306   wxNotebookBase::SetImageList(imageList);
 307
 308   if ( imageList )
 309   {
 310     TabCtrl_SetImageList(m_hwnd, (HIMAGELIST)imageList->GetHIMAGELIST());
 311   }
 312 }
 313
 314 // ----------------------------------------------------------------------------
 315 // wxNotebook size settings
 316 // ----------------------------------------------------------------------------
 317
 318 void wxNotebook::SetPageSize(const wxSize& size)
 319 {
 320     // transform the page size into the notebook size
 321     RECT rc;
 322     rc.left =
 323     rc.top = 0;
 324     rc.right = size.x;
 325     rc.bottom = size.y;
 326
 327     TabCtrl_AdjustRect(GetHwnd(), TRUE, &rc);
 328
 329     // and now set it
 330     SetSize(rc.right - rc.left, rc.bottom - rc.top);
 331 }
 332
 333 void wxNotebook::SetPadding(const wxSize& padding)
 334 {
 335     TabCtrl_SetPadding(GetHwnd(), padding.x, padding.y);
 336 }
 337
 338 // Windows-only at present. Also, you must use the wxNB_FIXEDWIDTH
 339 // style.
 340 void wxNotebook::SetTabSize(const wxSize& sz)
 341 {
 342     ::SendMessage(GetHwnd(), TCM_SETITEMSIZE, 0, MAKELPARAM(sz.x, sz.y));
 343 }
 344
 345 wxSize wxNotebook::CalcSizeFromPage(const wxSize& sizePage) const
 346 {
 347     wxSize sizeTotal = sizePage;
 348
 349     // We need to make getting tab size part of the wxWindows API.
 350     wxSize tabSize(0, 0);
 351     if (GetPageCount() > 0)
 352     {
 353         RECT rect;
 354         TabCtrl_GetItemRect((HWND) GetHWND(), 0, & rect);
 355         tabSize.x = rect.right - rect.left;
 356         tabSize.y = rect.bottom - rect.top;
 357     }
 358     if ( HasFlag(wxNB_LEFT) || HasFlag(wxNB_RIGHT) )
 359     {
 360         sizeTotal.x += tabSize.x + 7;
 361         sizeTotal.y += 7;
 362     }
 363     else
 364     {
 365         sizeTotal.x += 7;
 366         sizeTotal.y += tabSize.y + 7;
 367     }
 368
 369     return sizeTotal;
 370 }
 371
 372 void wxNotebook::AdjustPageSize(wxNotebookPage *page)
 373 {
 374     wxCHECK_RET( page, _T("NULL page in wxNotebook::AdjustPageSize") );
 375
 376     RECT rc;
 377     rc.left =
 378     rc.top = 0;
 379
 380     // get the page size from the notebook size
 381     GetSize((int *)&rc.right, (int *)&rc.bottom);
 382     TabCtrl_AdjustRect(m_hwnd, FALSE, &rc);
 383
 384     page->SetSize(rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top);
 385 }
 386
 387 // ----------------------------------------------------------------------------
 388 // wxNotebook operations
 389 // ----------------------------------------------------------------------------
 390
 391 // remove one page from the notebook, without deleting
 392 wxNotebookPage *wxNotebook::DoRemovePage(int nPage)
 393 {
 394     wxNotebookPage *pageRemoved = wxNotebookBase::DoRemovePage(nPage);
 395     if ( !pageRemoved )
 396         return NULL;
 397
 398     TabCtrl_DeleteItem(m_hwnd, nPage);
 399
 400     if ( m_pages.IsEmpty() )
 401     {
 402         // no selection any more, the notebook becamse empty
 403         m_nSelection = -1;
 404     }
 405     else // notebook still not empty
 406     {
 407         // change the selected page if it was deleted or became invalid
 408         int selNew;
 409         if ( m_nSelection == GetPageCount() )
 410         {
 411             // last page deleted, make the new last page the new selection
 412             selNew = m_nSelection - 1;
 413         }
 414         else if ( nPage <= m_nSelection )
 415         {
 416             // we must show another page, even if it has the same index
 417             selNew = m_nSelection;
 418         }
 419         else // nothing changes for the currently selected page
 420         {
 421             selNew = -1;
 422
 423             // we still must refresh the current page: this needs to be done
 424             // for some unknown reason if the tab control shows the up-down
 425             // control (i.e. when there are too many pages) -- otherwise after
 426             // deleting a page nothing at all is shown
 427             m_pages[m_nSelection]->Refresh();
 428         }
 429
 430         if ( selNew != -1 )
 431         {
 432             // m_nSelection must be always valid so reset it before calling
 433             // SetSelection()
 434             m_nSelection = -1;
 435             SetSelection(selNew);
 436         }
 437     }
 438
 439     return pageRemoved;
 440 }
 441
 442 // remove all pages
 443 bool wxNotebook::DeleteAllPages()
 444 {
 445   int nPageCount = GetPageCount();
 446   int nPage;
 447   for ( nPage = 0; nPage < nPageCount; nPage++ )
 448     delete m_pages[nPage];
 449
 450   m_pages.Clear();
 451
 452   TabCtrl_DeleteAllItems(m_hwnd);
 453
 454   m_nSelection = -1;
 455
 456   return TRUE;
 457 }
 458
 459 // same as AddPage() but does it at given position
 460 bool wxNotebook::InsertPage(int nPage,
 461                             wxNotebookPage *pPage,
 462                             const wxString& strText,
 463                             bool bSelect,
 464                             int imageId)
 465 {
 466     wxCHECK_MSG( pPage != NULL, FALSE, _T("NULL page in wxNotebook::InsertPage") );
 467     wxCHECK_MSG( IS_VALID_PAGE(nPage) || nPage == GetPageCount(), FALSE,
 468                  _T("invalid index in wxNotebook::InsertPage") );
 469
 470     wxASSERT_MSG( pPage->GetParent() == this,
 471                     _T("notebook pages must have notebook as parent") );
 472
 473 #if wxUSE_UXTHEME && wxUSE_UXTHEME_AUTO
 474     // Automatically apply the theme background,
 475     // changing the colour of the panel to match the
 476     // tab page colour. This won't work well with all
 477     // themes but it's a start.
 478     if (wxUxThemeEngine::Get() && pPage->IsKindOf(CLASSINFO(wxPanel)))
 479     {
 480         ApplyThemeBackground(pPage, GetThemeBackgroundColour());
 481     }
 482 #endif
 483
 484     // add a new tab to the control
 485     // ----------------------------
 486
 487     // init all fields to 0
 488     TC_ITEM tcItem;
 489     wxZeroMemory(tcItem);
 490
 491     // set the image, if any
 492     if ( imageId != -1 )
 493     {
 494         tcItem.mask |= TCIF_IMAGE;
 495         tcItem.iImage  = imageId;
 496     }
 497
 498     // and the text
 499     if ( !strText.IsEmpty() )
 500     {
 501         tcItem.mask |= TCIF_TEXT;
 502         tcItem.pszText = (wxChar *)strText.c_str(); // const_cast
 503     }
 504
 505     // fit the notebook page to the tab control's display area: this should be
 506     // done before adding it to the notebook or TabCtrl_InsertItem() will
 507     // change the notebooks size itself!
 508     AdjustPageSize(pPage);
 509
 510     // finally do insert it
 511     if ( TabCtrl_InsertItem(m_hwnd, nPage, &tcItem) == -1 )
 512     {
 513         wxLogError(wxT("Can't create the notebook page '%s'."), strText.c_str());
 514
 515         return FALSE;
 516     }
 517
 518     // succeeded: save the pointer to the page
 519     m_pages.Insert(pPage, nPage);
 520
 521     // for the first page (only) we need to adjust the size again because the
 522     // notebook size changed: the tabs which hadn't been there before are now
 523     // shown
 524     if ( m_pages.GetCount() == 1 )
 525     {
 526         AdjustPageSize(pPage);
 527     }
 528
 529     // hide the page: unless it is selected, it shouldn't be shown (and if it
 530     // is selected it will be shown later)
 531     HWND hwnd = GetWinHwnd(pPage);
 532     SetWindowLong(hwnd, GWL_STYLE, GetWindowLong(hwnd, GWL_STYLE) & ~WS_VISIBLE);
 533
 534     // this updates internal flag too -- otherwise it would get out of sync
 535     // with the real state
 536     pPage->Show(FALSE);
 537
 538
 539     // now deal with the selection
 540     // ---------------------------
 541
 542     // if the inserted page is before the selected one, we must update the
 543     // index of the selected page
 544     if ( nPage <= m_nSelection )
 545     {
 546         // one extra page added
 547         m_nSelection++;
 548     }
 549
 550     // some page should be selected: either this one or the first one if there
 551     // is still no selection
 552     int selNew = -1;
 553     if ( bSelect )
 554         selNew = nPage;
 555     else if ( m_nSelection == -1 )
 556         selNew = 0;
 557
 558     if ( selNew != -1 )
 559         SetSelection(selNew);
 560
 561     return TRUE;
 562 }
 563
 564 int wxNotebook::HitTest(const wxPoint& pt, long *flags) const
 565 {
 566     TC_HITTESTINFO hitTestInfo;
 567     hitTestInfo.pt.x = pt.x;
 568     hitTestInfo.pt.y = pt.y;
 569     int item = TabCtrl_HitTest(GetHwnd(), &hitTestInfo);
 570
 571     if ( flags )
 572     {
 573         *flags = 0;
 574
 575         if ((hitTestInfo.flags & TCHT_NOWHERE) == TCHT_NOWHERE)
 576             *flags |= wxNB_HITTEST_NOWHERE;
 577         if ((hitTestInfo.flags & TCHT_ONITEM) == TCHT_ONITEM)
 578             *flags |= wxNB_HITTEST_ONITEM;
 579         if ((hitTestInfo.flags & TCHT_ONITEMICON) == TCHT_ONITEMICON)
 580             *flags |= wxNB_HITTEST_ONICON;
 581         if ((hitTestInfo.flags & TCHT_ONITEMLABEL) == TCHT_ONITEMLABEL)
 582             *flags |= wxNB_HITTEST_ONLABEL;
 583     }
 584
 585     return item;
 586 }
 587
 588
 589 // ----------------------------------------------------------------------------
 590 // wxNotebook callbacks
 591 // ----------------------------------------------------------------------------
 592
 593 void wxNotebook::OnSize(wxSizeEvent& event)
 594 {
 595   // fit the notebook page to the tab control's display area
 596   RECT rc;
 597   rc.left = rc.top = 0;
 598   GetSize((int *)&rc.right, (int *)&rc.bottom);
 599
 600   TabCtrl_AdjustRect(m_hwnd, FALSE, &rc);
 601
 602   int width = rc.right - rc.left,
 603       height = rc.bottom - rc.top;
 604   size_t nCount = m_pages.Count();
 605   for ( size_t nPage = 0; nPage < nCount; nPage++ ) {
 606     wxNotebookPage *pPage = m_pages[nPage];
 607     pPage->SetSize(rc.left, rc.top, width, height);
 608   }
 609
 610   event.Skip();
 611 }
 612
 613 void wxNotebook::OnSelChange(wxNotebookEvent& event)
 614 {
 615   // is it our tab control?
 616   if ( event.GetEventObject() == this )
 617   {
 618       int sel = event.GetOldSelection();
 619       if ( sel != -1 )
 620         m_pages[sel]->Show(FALSE);
 621
 622       sel = event.GetSelection();
 623       if ( sel != -1 )
 624       {
 625         wxNotebookPage *pPage = m_pages[sel];
 626         pPage->Show(TRUE);
 627         pPage->SetFocus();
 628       }
 629
 630       m_nSelection = sel;
 631   }
 632
 633   // we want to give others a chance to process this message as well
 634   event.Skip();
 635 }
 636
 637 void wxNotebook::OnSetFocus(wxFocusEvent& event)
 638 {
 639     // this function is only called when the focus is explicitly set (i.e. from
 640     // the program) to the notebook - in this case we don't need the
 641     // complicated OnNavigationKey() logic because the programmer knows better
 642     // what [s]he wants
 643
 644     // set focus to the currently selected page if any
 645     if ( m_nSelection != -1 )
 646         m_pages[m_nSelection]->SetFocus();
 647
 648     event.Skip();
 649 }
 650
 651 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 652 {
 653     if ( event.IsWindowChange() ) {
 654         // change pages
 655         AdvanceSelection(event.GetDirection());
 656     }
 657     else {
 658         // we get this event in 2 cases
 659         //
 660         // a) one of our pages might have generated it because the user TABbed
 661         // out from it in which case we should propagate the event upwards and
 662         // our parent will take care of setting the focus to prev/next sibling
 663         //
 664         // or
 665         //
 666         // b) the parent panel wants to give the focus to us so that we
 667         // forward it to our selected page. We can't deal with this in
 668         // OnSetFocus() because we don't know which direction the focus came
 669         // from in this case and so can't choose between setting the focus to
 670         // first or last panel child
 671
 672         wxWindow *parent = GetParent();
 673         if ( event.GetEventObject() == parent )
 674         {
 675             // no, it doesn't come from child, case (b): forward to a page
 676             if ( m_nSelection != -1 )
 677             {
 678                 // so that the page knows that the event comes from it's parent
 679                 // and is being propagated downwards
 680                 event.SetEventObject(this);
 681
 682                 wxWindow *page = m_pages[m_nSelection];
 683                 if ( !page->GetEventHandler()->ProcessEvent(event) )
 684                 {
 685                     page->SetFocus();
 686                 }
 687                 //else: page manages focus inside it itself
 688             }
 689             else
 690             {
 691                 // we have no pages - still have to give focus to _something_
 692                 SetFocus();
 693             }
 694         }
 695         else
 696         {
 697             // it comes from our child, case (a), pass to the parent
 698             if ( parent ) {
 699                 event.SetCurrentFocus(this);
 700                 parent->GetEventHandler()->ProcessEvent(event);
 701             }
 702         }
 703     }
 704 }
 705
 706 // ----------------------------------------------------------------------------
 707 // wxNotebook base class virtuals
 708 // ----------------------------------------------------------------------------
 709
 710 #if wxUSE_CONSTRAINTS
 711
 712 // override these 2 functions to do nothing: everything is done in OnSize
 713
 714 void wxNotebook::SetConstraintSizes(bool WXUNUSED(recurse))
 715 {
 716   // don't set the sizes of the pages - their correct size is not yet known
 717   wxControl::SetConstraintSizes(FALSE);
 718 }
 719
 720 bool wxNotebook::DoPhase(int WXUNUSED(nPhase))
 721 {
 722   return TRUE;
 723 }
 724
 725 #endif // wxUSE_CONSTRAINTS
 726
 727 // ----------------------------------------------------------------------------
 728 // wxNotebook Windows message handlers
 729 // ----------------------------------------------------------------------------
 730
 731 bool wxNotebook::MSWOnScroll(int orientation, WXWORD nSBCode,
 732                              WXWORD pos, WXHWND control)
 733 {
 734     // don't generate EVT_SCROLLWIN events for the WM_SCROLLs coming from the
 735     // up-down control
 736     if ( control )
 737         return FALSE;
 738
 739     return wxNotebookBase::MSWOnScroll(orientation, nSBCode, pos, control);
 740 }
 741
 742 bool wxNotebook::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM* result)
 743 {
 744   wxNotebookEvent event(wxEVT_NULL, m_windowId);
 745
 746   NMHDR* hdr = (NMHDR *)lParam;
 747   switch ( hdr->code ) {
 748     case TCN_SELCHANGE:
 749       event.SetEventType(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED);
 750       break;
 751
 752     case TCN_SELCHANGING:
 753       event.SetEventType(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING);
 754       break;
 755
 756     default:
 757       return wxControl::MSWOnNotify(idCtrl, lParam, result);
 758   }
 759
 760   event.SetSelection(TabCtrl_GetCurSel(m_hwnd));
 761   event.SetOldSelection(m_nSelection);
 762   event.SetEventObject(this);
 763   event.SetInt(idCtrl);
 764
 765   bool processed = GetEventHandler()->ProcessEvent(event);
 766   *result = !event.IsAllowed();
 767   return processed;
 768 }
 769
 770 // Windows only: attempts to get colour for UX theme page background
 771 wxColour wxNotebook::GetThemeBackgroundColour()
 772 {
 773 #if wxUSE_UXTHEME
 774     if (wxUxThemeEngine::Get())
 775     {
 776         WXHTHEME hTheme = wxUxThemeEngine::Get()->m_pfnOpenThemeData(GetHWND(), L"TAB");
 777         if (hTheme)
 778         {
 779             // This is total guesswork.
 780             // See PlatformSDK\Include\Tmschema.h for values
 781             COLORREF themeColor;
 782             wxUxThemeEngine::Get()->
 783                 m_pfnGetThemeColor(hTheme,
 784                 10 /* TABP_BODY */,
 785                 1 /* NORMAL */,
 786                 3821, /* FILLCOLORHINT */
 787                 & themeColor);
 788
 789             wxUxThemeEngine::Get()->m_pfnCloseThemeData(hTheme);
 790
 791             wxColour colour(GetRValue(themeColor), GetGValue(themeColor), GetBValue(themeColor));
 792             return colour;
 793         }
 794     }
 795 #endif
 796     return GetBackgroundColour();
 797 }
 798
 799 // Windows only: attempts to apply the UX theme page background to this page
 800 void wxNotebook::ApplyThemeBackground(wxWindow* window, const wxColour& colour)
 801 {
 802 #if wxUSE_UXTHEME
 803     // Don't set the background for buttons since this will
 804     // switch it into ownerdraw mode
 805     if (window->IsKindOf(CLASSINFO(wxButton)) && !window->IsKindOf(CLASSINFO(wxBitmapButton)))
 806         // This is essential, otherwise you'll see dark grey
 807         // corners in the buttons.
 808         ((wxButton*)window)->wxControl::SetBackgroundColour(colour);
 809     else if (window->IsKindOf(CLASSINFO(wxStaticText)) ||
 810              window->IsKindOf(CLASSINFO(wxStaticBox)) ||
 811              window->IsKindOf(CLASSINFO(wxStaticLine)) ||
 812              window->IsKindOf(CLASSINFO(wxRadioButton)) ||
 813              window->IsKindOf(CLASSINFO(wxRadioBox)) ||
 814              window->IsKindOf(CLASSINFO(wxCheckBox)) ||
 815              window->IsKindOf(CLASSINFO(wxBitmapButton)) ||
 816              window->IsKindOf(CLASSINFO(wxSlider)) ||
 817              window->IsKindOf(CLASSINFO(wxPanel)) ||
 818              (window->IsKindOf(CLASSINFO(wxNotebook)) && (window != this)) ||
 819              window->IsKindOf(CLASSINFO(wxScrolledWindow))
 820         )
 821     {
 822         window->SetBackgroundColour(colour);
 823     }
 824
 825     for ( wxWindowList::Node *node = window->GetChildren().GetFirst(); node; node = node->GetNext() )
 826     {
 827         wxWindow *child = node->GetData();
 828         ApplyThemeBackground(child, colour);
 829     }
 830 #endif
 831 }
 832
 833 #endif // wxUSE_NOTEBOOK