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 license
  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 // wxWindows
  24 #ifndef WX_PRECOMP
  25   #include  <wx/string.h>
  26 #endif  // WX_PRECOMP
  27
  28 #include  <wx/log.h>
  29 #include  <wx/imaglist.h>
  30 #include  <wx/event.h>
  31 #include  <wx/control.h>
  32 #include  <wx/notebook.h>
  33
  34 #include  <wx/msw/private.h>
  35
  36 // Windows standard headers
  37 #ifndef   __WIN95__
  38   #error  "wxNotebook is only supported Windows 95 and above"
  39 #endif    //Win95
  40
  41 #include  <windowsx.h>  // for SetWindowFont
  42
  43 #ifndef __TWIN32__
  44 #ifdef __GNUWIN32__
  45 #ifndef wxUSE_NORLANDER_HEADERS
  46   #include "wx/msw/gnuwin32/extra.h"
  47 #endif
  48 #endif
  49 #endif
  50
  51 #if !defined(__GNUWIN32__) || defined(__TWIN32__) || defined(wxUSE_NORLANDER_HEADERS)
  52   #include <commctrl.h>
  53 #endif
  54
  55 // ----------------------------------------------------------------------------
  56 // macros
  57 // ----------------------------------------------------------------------------
  58
  59 // check that the page index is valid
  60 #define IS_VALID_PAGE(nPage) (((nPage) >= 0) && ((nPage) < GetPageCount()))
  61
  62 // hide the ugly cast
  63 #define m_hwnd    (HWND)GetHWND()
  64
  65 // ----------------------------------------------------------------------------
  66 // constants
  67 // ----------------------------------------------------------------------------
  68
  69 // This is a work-around for missing defines in gcc-2.95 headers
  70 #ifndef TCS_RIGHT
  71     #define TCS_RIGHT       0x0002
  72 #endif
  73
  74 #ifndef TCS_VERTICAL
  75     #define TCS_VERTICAL    0x0080
  76 #endif
  77
  78 #ifndef TCS_BOTTOM
  79     #define TCS_BOTTOM      TCS_RIGHT
  80 #endif
  81
  82 // ----------------------------------------------------------------------------
  83 // event table
  84 // ----------------------------------------------------------------------------
  85
  86 #if !USE_SHARED_LIBRARIES
  87   BEGIN_EVENT_TABLE(wxNotebook, wxControl)
  88     EVT_NOTEBOOK_PAGE_CHANGED(-1, wxNotebook::OnSelChange)
  89
  90     EVT_SIZE(wxNotebook::OnSize)
  91
  92     EVT_SET_FOCUS(wxNotebook::OnSetFocus)
  93
  94     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
  95   END_EVENT_TABLE()
  96
  97   IMPLEMENT_DYNAMIC_CLASS(wxNotebook, wxControl)
  98   IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxNotifyEvent)
  99 #endif
 100
 101 // ============================================================================
 102 // implementation
 103 // ============================================================================
 104
 105 // ----------------------------------------------------------------------------
 106 // wxNotebook construction
 107 // ----------------------------------------------------------------------------
 108
 109 // common part of all ctors
 110 void wxNotebook::Init()
 111 {
 112   m_pImageList = NULL;
 113   m_nSelection = -1;
 114 }
 115
 116 // default for dynamic class
 117 wxNotebook::wxNotebook()
 118 {
 119   Init();
 120 }
 121
 122 // the same arguments as for wxControl
 123 wxNotebook::wxNotebook(wxWindow *parent,
 124                        wxWindowID id,
 125                        const wxPoint& pos,
 126                        const wxSize& size,
 127                        long style,
 128                        const wxString& name)
 129 {
 130   Init();
 131
 132   Create(parent, id, pos, size, style, name);
 133 }
 134
 135 // Create() function
 136 bool wxNotebook::Create(wxWindow *parent,
 137                         wxWindowID id,
 138                         const wxPoint& pos,
 139                         const wxSize& size,
 140                         long style,
 141                         const wxString& name)
 142 {
 143   // base init
 144   if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) )
 145       return FALSE;
 146
 147   // colors and font
 148   m_backgroundColour = wxColour(GetSysColor(COLOR_BTNFACE));
 149   m_foregroundColour = *wxBLACK ;
 150
 151   // style
 152   m_windowStyle = style | wxTAB_TRAVERSAL;
 153
 154   long tabStyle = WS_CHILD | WS_VISIBLE | WS_TABSTOP | TCS_TABS;
 155
 156   if (m_windowStyle & wxCLIP_CHILDREN)
 157     tabStyle |= WS_CLIPCHILDREN;
 158   if ( m_windowStyle & wxTC_MULTILINE )
 159     tabStyle |= TCS_MULTILINE;
 160   if ( m_windowStyle & wxBORDER )
 161     tabStyle &= WS_BORDER;
 162   if (m_windowStyle & wxNB_FIXEDWIDTH)
 163     tabStyle |= TCS_FIXEDWIDTH ;
 164   if (m_windowStyle & wxNB_BOTTOM)
 165     tabStyle |= TCS_RIGHT;
 166   if (m_windowStyle & wxNB_LEFT)
 167     tabStyle |= TCS_VERTICAL;
 168   if (m_windowStyle & wxNB_RIGHT)
 169     tabStyle |= TCS_VERTICAL|TCS_RIGHT;
 170
 171
 172   if ( !MSWCreate(GetId(), GetParent(), WC_TABCONTROL,
 173                   this, NULL, pos.x, pos.y, size.x, size.y,
 174                   tabStyle, NULL, 0) )
 175   {
 176     return FALSE;
 177   }
 178
 179   // Not all compilers recognise SetWindowFont
 180   ::SendMessage(GetHwnd(), WM_SETFONT,
 181                 (WPARAM)::GetStockObject(DEFAULT_GUI_FONT), TRUE);
 182
 183
 184   if ( parent != NULL )
 185     parent->AddChild(this);
 186
 187   SubclassWin(m_hWnd);
 188
 189   return TRUE;
 190 }
 191
 192 // dtor
 193 wxNotebook::~wxNotebook()
 194 {
 195 }
 196
 197 // ----------------------------------------------------------------------------
 198 // wxNotebook accessors
 199 // ----------------------------------------------------------------------------
 200 int wxNotebook::GetPageCount() const
 201 {
 202   // consistency check
 203   wxASSERT( (int)m_aPages.Count() == TabCtrl_GetItemCount(m_hwnd) );
 204
 205   return m_aPages.Count();
 206 }
 207
 208 int wxNotebook::GetRowCount() const
 209 {
 210   return TabCtrl_GetRowCount(m_hwnd);
 211 }
 212
 213 int wxNotebook::SetSelection(int nPage)
 214 {
 215   wxCHECK_MSG( IS_VALID_PAGE(nPage), -1, T("notebook page out of range") );
 216
 217   ChangePage(m_nSelection, nPage);
 218
 219   return TabCtrl_SetCurSel(m_hwnd, nPage);
 220 }
 221
 222 void wxNotebook::AdvanceSelection(bool bForward)
 223 {
 224   int nSel = GetSelection();
 225   int nMax = GetPageCount() - 1;
 226   if ( bForward )
 227     SetSelection(nSel == nMax ? 0 : nSel + 1);
 228   else
 229     SetSelection(nSel == 0 ? nMax : nSel - 1);
 230 }
 231
 232 bool wxNotebook::SetPageText(int nPage, const wxString& strText)
 233 {
 234   wxCHECK_MSG( IS_VALID_PAGE(nPage), FALSE, T("notebook page out of range") );
 235
 236   TC_ITEM tcItem;
 237   tcItem.mask = TCIF_TEXT;
 238   tcItem.pszText = (wxChar *)strText.c_str();
 239
 240   return TabCtrl_SetItem(m_hwnd, nPage, &tcItem) != 0;
 241 }
 242
 243 wxString wxNotebook::GetPageText(int nPage) const
 244 {
 245   wxCHECK_MSG( IS_VALID_PAGE(nPage), T(""), T("notebook page out of range") );
 246
 247   wxChar buf[256];
 248   TC_ITEM tcItem;
 249   tcItem.mask = TCIF_TEXT;
 250   tcItem.pszText = buf;
 251   tcItem.cchTextMax = WXSIZEOF(buf);
 252
 253   wxString str;
 254   if ( TabCtrl_GetItem(m_hwnd, nPage, &tcItem) )
 255     str = tcItem.pszText;
 256
 257   return str;
 258 }
 259
 260 int wxNotebook::GetPageImage(int nPage) const
 261 {
 262   wxCHECK_MSG( IS_VALID_PAGE(nPage), -1, T("notebook page out of range") );
 263
 264   TC_ITEM tcItem;
 265   tcItem.mask = TCIF_IMAGE;
 266
 267   return TabCtrl_GetItem(m_hwnd, nPage, &tcItem) ? tcItem.iImage : -1;
 268 }
 269
 270 bool wxNotebook::SetPageImage(int nPage, int nImage)
 271 {
 272   wxCHECK_MSG( IS_VALID_PAGE(nPage), FALSE, T("notebook page out of range") );
 273
 274   TC_ITEM tcItem;
 275   tcItem.mask = TCIF_IMAGE;
 276   tcItem.iImage = nImage;
 277
 278   return TabCtrl_SetItem(m_hwnd, nPage, &tcItem) != 0;
 279 }
 280
 281 void wxNotebook::SetImageList(wxImageList* imageList)
 282 {
 283   m_pImageList = imageList;
 284   TabCtrl_SetImageList(m_hwnd, (HIMAGELIST)imageList->GetHIMAGELIST());
 285 }
 286
 287
 288 // Windows-only at present. Also, you must use the wxNB_FIXEDWIDTH
 289 // style.
 290 void wxNotebook::SetTabSize(const wxSize& sz)
 291 {
 292     ::SendMessage(GetHwnd(), TCM_SETITEMSIZE, 0, MAKELPARAM(sz.x, sz.y));
 293 }
 294
 295 // ----------------------------------------------------------------------------
 296 // wxNotebook operations
 297 // ----------------------------------------------------------------------------
 298
 299 // remove one page from the notebook
 300 bool wxNotebook::DeletePage(int nPage)
 301 {
 302   wxCHECK_MSG( IS_VALID_PAGE(nPage), FALSE, T("notebook page out of range") );
 303
 304   if ( m_nSelection == nPage ) {
 305       // advance selection backwards - the page being deleted shouldn't be left
 306       // selected
 307       AdvanceSelection(FALSE);
 308   }
 309
 310   TabCtrl_DeleteItem(m_hwnd, nPage);
 311
 312   delete m_aPages[nPage];
 313   m_aPages.Remove(nPage);
 314
 315   if ( m_aPages.IsEmpty() ) {
 316       // no selection if the notebook became empty
 317       m_nSelection = -1;
 318   }
 319
 320   return TRUE;
 321 }
 322
 323 // remove one page from the notebook, without deleting
 324 bool wxNotebook::RemovePage(int nPage)
 325 {
 326   wxCHECK_MSG( IS_VALID_PAGE(nPage), FALSE, T("notebook page out of range") );
 327
 328   TabCtrl_DeleteItem(m_hwnd, nPage);
 329
 330   m_aPages.Remove(nPage);
 331
 332   return TRUE;
 333 }
 334
 335 // remove all pages
 336 bool wxNotebook::DeleteAllPages()
 337 {
 338   int nPageCount = GetPageCount();
 339   int nPage;
 340   for ( nPage = 0; nPage < nPageCount; nPage++ )
 341     delete m_aPages[nPage];
 342
 343   m_aPages.Clear();
 344
 345   TabCtrl_DeleteAllItems(m_hwnd);
 346
 347   return TRUE;
 348 }
 349
 350 // add a page to the notebook
 351 bool wxNotebook::AddPage(wxNotebookPage *pPage,
 352                          const wxString& strText,
 353                          bool bSelect,
 354                          int imageId)
 355 {
 356   return InsertPage(GetPageCount(), pPage, strText, bSelect, imageId);
 357 }
 358
 359 // same as AddPage() but does it at given position
 360 bool wxNotebook::InsertPage(int nPage,
 361                             wxNotebookPage *pPage,
 362                             const wxString& strText,
 363                             bool bSelect,
 364                             int imageId)
 365 {
 366   wxASSERT( pPage != NULL );
 367   wxCHECK( IS_VALID_PAGE(nPage) || nPage == GetPageCount(), FALSE );
 368
 369   // do add the tab to the control
 370
 371   // init all fields to 0
 372   TC_ITEM tcItem;
 373   memset(&tcItem, 0, sizeof(tcItem));
 374
 375   if ( imageId != -1 )
 376   {
 377     tcItem.mask |= TCIF_IMAGE;
 378     tcItem.iImage  = imageId;
 379   }
 380
 381   if ( !strText.IsEmpty() )
 382   {
 383     tcItem.mask |= TCIF_TEXT;
 384     tcItem.pszText = (wxChar *)strText.c_str(); // const_cast
 385   }
 386
 387   if ( TabCtrl_InsertItem(m_hwnd, nPage, &tcItem) == -1 ) {
 388     wxLogError(T("Can't create the notebook page '%s'."), strText.c_str());
 389
 390     return FALSE;
 391   }
 392
 393   // if the inserted page is before the selected one, we must update the
 394   // index of the selected page
 395   if ( nPage <= m_nSelection )
 396   {
 397     // one extra page added
 398     m_nSelection++;
 399   }
 400
 401   // save the pointer to the page
 402   m_aPages.Insert(pPage, nPage);
 403
 404   // don't show pages by default (we'll need to adjust their size first)
 405   HWND hwnd = GetWinHwnd(pPage);
 406   SetWindowLong(hwnd, GWL_STYLE, GetWindowLong(hwnd, GWL_STYLE) & ~WS_VISIBLE);
 407
 408   // this updates internal flag too - otherwise it will get out of sync
 409   pPage->Show(FALSE);
 410
 411   // some page should be selected: either this one or the first one if there is
 412   // still no selection
 413   int selNew = -1;
 414   if ( bSelect )
 415     selNew = nPage;
 416   else if ( m_nSelection == -1 )
 417     selNew = 0;
 418
 419   if ( selNew != -1 )
 420     SetSelection(selNew);
 421
 422   return TRUE;
 423 }
 424
 425 // ----------------------------------------------------------------------------
 426 // wxNotebook callbacks
 427 // ----------------------------------------------------------------------------
 428
 429 void wxNotebook::OnSize(wxSizeEvent& event)
 430 {
 431   // fit the notebook page to the tab control's display area
 432   RECT rc;
 433   rc.left = rc.top = 0;
 434   GetSize((int *)&rc.right, (int *)&rc.bottom);
 435
 436   TabCtrl_AdjustRect(m_hwnd, FALSE, &rc);
 437   size_t nCount = m_aPages.Count();
 438   for ( size_t nPage = 0; nPage < nCount; nPage++ ) {
 439     wxNotebookPage *pPage = m_aPages[nPage];
 440     pPage->SetSize(rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top);
 441     if ( pPage->GetAutoLayout() )
 442       pPage->Layout();
 443   }
 444
 445   event.Skip();
 446 }
 447
 448 void wxNotebook::OnSelChange(wxNotebookEvent& event)
 449 {
 450   // is it our tab control?
 451   if ( event.GetEventObject() == this )
 452   {
 453       int sel = event.GetOldSelection();
 454       if ( sel != -1 )
 455         m_aPages[sel]->Show(FALSE);
 456
 457       sel = event.GetSelection();
 458       if ( sel != -1 )
 459       {
 460         wxNotebookPage *pPage = m_aPages[sel];
 461         pPage->Show(TRUE);
 462         pPage->SetFocus();
 463       }
 464
 465       m_nSelection = sel;
 466   }
 467
 468   // we want to give others a chance to process this message as well
 469   event.Skip();
 470 }
 471
 472 void wxNotebook::OnSetFocus(wxFocusEvent& event)
 473 {
 474   // set focus to the currently selected page if any
 475   if ( m_nSelection != -1 )
 476     m_aPages[m_nSelection]->SetFocus();
 477
 478   event.Skip();
 479 }
 480
 481 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 482 {
 483   if ( event.IsWindowChange() ) {
 484     // change pages
 485     AdvanceSelection(event.GetDirection());
 486   }
 487   else {
 488     // pass to the parent
 489     if ( GetParent() ) {
 490       event.SetCurrentFocus(this);
 491       GetParent()->GetEventHandler()->ProcessEvent(event);
 492     }
 493   }
 494 }
 495
 496 // ----------------------------------------------------------------------------
 497 // wxNotebook base class virtuals
 498 // ----------------------------------------------------------------------------
 499
 500 // override these 2 functions to do nothing: everything is done in OnSize
 501
 502 void wxNotebook::SetConstraintSizes(bool /* recurse */)
 503 {
 504   // don't set the sizes of the pages - their correct size is not yet known
 505   wxControl::SetConstraintSizes(FALSE);
 506 }
 507
 508 bool wxNotebook::DoPhase(int /* nPhase */)
 509 {
 510   return TRUE;
 511 }
 512
 513 bool wxNotebook::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM* result)
 514 {
 515   wxNotebookEvent event(wxEVT_NULL, m_windowId);
 516
 517   NMHDR* hdr = (NMHDR *)lParam;
 518   switch ( hdr->code ) {
 519     case TCN_SELCHANGE:
 520       event.SetEventType(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED);
 521       break;
 522
 523     case TCN_SELCHANGING:
 524       event.SetEventType(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING);
 525       break;
 526
 527     default:
 528       return wxControl::MSWOnNotify(idCtrl, lParam, result);
 529   }
 530
 531   event.SetSelection(TabCtrl_GetCurSel(m_hwnd));
 532   event.SetOldSelection(m_nSelection);
 533   event.SetEventObject(this);
 534   event.SetInt(idCtrl);
 535
 536   bool processed = GetEventHandler()->ProcessEvent(event);
 537   *result = !event.IsAllowed();
 538   return processed;
 539 }
 540
 541 // ----------------------------------------------------------------------------
 542 // wxNotebook helper functions
 543 // ----------------------------------------------------------------------------
 544
 545 // generate the page changing and changed events, hide the currently active
 546 // panel and show the new one
 547 void wxNotebook::ChangePage(int nOldSel, int nSel)
 548 {
 549   // MT-FIXME should use a real semaphore
 550   static bool s_bInsideChangePage = FALSE;
 551
 552   // when we call ProcessEvent(), our own OnSelChange() is called which calls
 553   // this function - break the infinite loop
 554   if ( s_bInsideChangePage )
 555     return;
 556
 557   // it's not an error (the message may be generated by the tab control itself)
 558   // and it may happen - just do nothing
 559   if ( nSel == nOldSel )
 560     return;
 561
 562   s_bInsideChangePage = TRUE;
 563
 564   wxNotebookEvent event(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING, m_windowId);
 565   event.SetSelection(nSel);
 566   event.SetOldSelection(nOldSel);
 567   event.SetEventObject(this);
 568   if ( ProcessEvent(event) && !event.IsAllowed() )
 569   {
 570     // program doesn't allow the page change
 571     s_bInsideChangePage = FALSE;
 572     return;
 573   }
 574
 575   event.SetEventType(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED);
 576   ProcessEvent(event);
 577
 578   s_bInsideChangePage = FALSE;
 579 }