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/notebook.h>
  31
  32 #include  <wx/msw/private.h>
  33
  34 // Windows standard headers
  35 #ifndef   __WIN95__
  36   #error  "wxNotebook is not supported under Windows 3.1"
  37 #endif    //Win95
  38
  39 #include  <windowsx.h>  // for SetWindowFont
  40
  41 #ifdef __GNUWIN32__
  42   #include "wx/msw/gnuwin32/extra.h"
  43 #else   //!GnuWin32
  44   #include <commctrl.h>
  45 #endif
  46
  47 // ----------------------------------------------------------------------------
  48 // macros
  49 // ----------------------------------------------------------------------------
  50
  51 // check that the page index is valid
  52 #define IS_VALID_PAGE(nPage) (((nPage) >= 0) && ((nPage) < GetPageCount()))
  53
  54 // hide the ugly cast
  55 #define m_hwnd    (HWND)GetHWND()
  56
  57 // ----------------------------------------------------------------------------
  58 // event table
  59 // ----------------------------------------------------------------------------
  60
  61 #if !USE_SHARED_LIBRARIES
  62   BEGIN_EVENT_TABLE(wxNotebook, wxControl)
  63     EVT_NOTEBOOK_PAGE_CHANGED(-1, wxNotebook::OnSelChange)
  64
  65     EVT_SIZE(wxNotebook::OnSize)
  66     EVT_ERASE_BACKGROUND(wxNotebook::OnEraseBackground)
  67     EVT_SET_FOCUS(wxNotebook::OnSetFocus)
  68     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
  69   END_EVENT_TABLE()
  70
  71   IMPLEMENT_DYNAMIC_CLASS(wxNotebook, wxControl)
  72   IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxCommandEvent)
  73 #endif
  74
  75 // ============================================================================
  76 // implementation
  77 // ============================================================================
  78
  79 // ----------------------------------------------------------------------------
  80 // wxNotebook construction
  81 // ----------------------------------------------------------------------------
  82
  83 // common part of all ctors
  84 void wxNotebook::Init()
  85 {
  86   m_pImageList = NULL;
  87   m_nSelection = -1;
  88 }
  89
  90 // default for dynamic class
  91 wxNotebook::wxNotebook()
  92 {
  93   Init();
  94 }
  95
  96 // the same arguments as for wxControl
  97 wxNotebook::wxNotebook(wxWindow *parent,
  98                        wxWindowID id,
  99                        const wxPoint& pos,
 100                        const wxSize& size,
 101                        long style,
 102                        const wxString& name)
 103 {
 104   Init();
 105
 106   Create(parent, id, pos, size, style, name);
 107 }
 108
 109 // Create() function
 110 bool wxNotebook::Create(wxWindow *parent,
 111                         wxWindowID id,
 112                         const wxPoint& pos,
 113                         const wxSize& size,
 114                         long style,
 115                         const wxString& name)
 116 {
 117   // base init
 118   SetName(name);
 119   SetParent(parent);
 120
 121   m_windowId = id == -1 ? NewControlId() : id;
 122
 123   // colors and font
 124   m_backgroundColour = wxColour(GetSysColor(COLOR_BTNFACE));
 125   m_foregroundColour = *wxBLACK ;
 126
 127   // style
 128   m_windowStyle = style | wxTAB_TRAVERSAL;
 129
 130   long tabStyle = WS_CHILD | WS_VISIBLE | WS_TABSTOP | TCS_TABS;
 131   if ( m_windowStyle & wxTC_MULTILINE )
 132     tabStyle |= TCS_MULTILINE;
 133   if ( m_windowStyle & wxBORDER )
 134     tabStyle &= WS_BORDER;
 135
 136   // create the tab control.
 137   m_hWnd = (WXHWND)CreateWindowEx
 138     (
 139       0,                                      // extended style
 140       WC_TABCONTROL,                          // class name for the tab control
 141       "",                                     // no caption
 142       tabStyle,                               // style
 143       pos.x, pos.y, size.x, size.y,           // size and position
 144       (HWND)parent->GetHWND(),                // parent window
 145       (HMENU)m_windowId,                      // child id
 146       wxGetInstance(),                        // current instance
 147       NULL                                    // no class data
 148     );
 149
 150   if ( m_hWnd == 0 ) {
 151     wxLogSysError("Can't create the notebook control");
 152     return FALSE;
 153   }
 154
 155   // Not all compilers recognise SetWindowFont
 156 //  SetWindowFont((HWND)m_hwnd, ::GetStockObject(DEFAULT_GUI_FONT), FALSE);
 157   ::SendMessage((HWND) m_hwnd, WM_SETFONT,
 158                   (WPARAM)::GetStockObject(DEFAULT_GUI_FONT),TRUE);
 159
 160
 161   if ( parent != NULL )
 162     parent->AddChild(this);
 163
 164   SubclassWin(m_hWnd);
 165
 166   return TRUE;
 167 }
 168
 169 // dtor
 170 wxNotebook::~wxNotebook()
 171 {
 172 }
 173
 174 // ----------------------------------------------------------------------------
 175 // wxNotebook accessors
 176 // ----------------------------------------------------------------------------
 177 int wxNotebook::GetPageCount() const
 178 {
 179   // consistency check
 180   wxASSERT( (int)m_aPages.Count() == TabCtrl_GetItemCount(m_hwnd) );
 181
 182   return m_aPages.Count();
 183 }
 184
 185 int wxNotebook::GetRowCount() const
 186 {
 187   return TabCtrl_GetRowCount(m_hwnd);
 188 }
 189
 190 int wxNotebook::SetSelection(int nPage)
 191 {
 192   wxCHECK_MSG( IS_VALID_PAGE(nPage), -1, "notebook page out of range" );
 193
 194   ChangePage(m_nSelection, nPage);
 195
 196   return TabCtrl_SetCurSel(m_hwnd, nPage);
 197 }
 198
 199 void wxNotebook::AdvanceSelection(bool bForward)
 200 {
 201   int nSel = GetSelection();
 202   int nMax = GetPageCount() - 1;
 203   if ( bForward )
 204     SetSelection(nSel == nMax ? 0 : nSel + 1);
 205   else
 206     SetSelection(nSel == 0 ? nMax : nSel - 1);
 207 }
 208
 209 bool wxNotebook::SetPageText(int nPage, const wxString& strText)
 210 {
 211   wxCHECK_MSG( IS_VALID_PAGE(nPage), FALSE, "notebook page out of range" );
 212
 213   TC_ITEM tcItem;
 214   tcItem.mask = TCIF_TEXT;
 215   tcItem.pszText = (char *)strText.c_str();
 216
 217   return TabCtrl_SetItem(m_hwnd, nPage, &tcItem) != 0;
 218 }
 219
 220 wxString wxNotebook::GetPageText(int nPage) const
 221 {
 222   wxCHECK_MSG( IS_VALID_PAGE(nPage), "", "notebook page out of range" );
 223
 224   char buf[256];
 225   TC_ITEM tcItem;
 226   tcItem.mask = TCIF_TEXT;
 227   tcItem.pszText = buf;
 228   tcItem.cchTextMax = WXSIZEOF(buf);
 229
 230   wxString str;
 231   if ( TabCtrl_GetItem(m_hwnd, nPage, &tcItem) )
 232     str = tcItem.pszText;
 233
 234   return str;
 235 }
 236
 237 int wxNotebook::GetPageImage(int nPage) const
 238 {
 239   wxCHECK_MSG( IS_VALID_PAGE(nPage), -1, "notebook page out of range" );
 240
 241   TC_ITEM tcItem;
 242   tcItem.mask = TCIF_IMAGE;
 243
 244   return TabCtrl_GetItem(m_hwnd, nPage, &tcItem) ? tcItem.iImage : -1;
 245 }
 246
 247 bool wxNotebook::SetPageImage(int nPage, int nImage)
 248 {
 249   wxCHECK_MSG( IS_VALID_PAGE(nPage), FALSE, "notebook page out of range" );
 250
 251   TC_ITEM tcItem;
 252   tcItem.mask = TCIF_IMAGE;
 253   tcItem.iImage = nImage;
 254
 255   return TabCtrl_SetItem(m_hwnd, nPage, &tcItem) != 0;
 256 }
 257
 258 void wxNotebook::SetImageList(wxImageList* imageList)
 259 {
 260   m_pImageList = imageList;
 261   TabCtrl_SetImageList(m_hwnd, (HIMAGELIST)imageList->GetHIMAGELIST());
 262 }
 263
 264 // ----------------------------------------------------------------------------
 265 // wxNotebook operations
 266 // ----------------------------------------------------------------------------
 267
 268 // remove one page from the notebook
 269 bool wxNotebook::DeletePage(int nPage)
 270 {
 271   wxCHECK_MSG( IS_VALID_PAGE(nPage), FALSE, "notebook page out of range" );
 272
 273   TabCtrl_DeleteItem(m_hwnd, nPage);
 274
 275   delete m_aPages[nPage];
 276   m_aPages.Remove(nPage);
 277
 278   return TRUE;
 279 }
 280
 281 // remove one page from the notebook, without deleting
 282 bool wxNotebook::RemovePage(int nPage)
 283 {
 284   wxCHECK_MSG( IS_VALID_PAGE(nPage), FALSE, "notebook page out of range" );
 285
 286   TabCtrl_DeleteItem(m_hwnd, nPage);
 287
 288   m_aPages.Remove(nPage);
 289
 290   return TRUE;
 291 }
 292
 293 // remove all pages
 294 bool wxNotebook::DeleteAllPages()
 295 {
 296   TabCtrl_DeleteAllItems(m_hwnd);
 297
 298   int nPageCount = GetPageCount();
 299   int nPage;
 300   for ( nPage = 0; nPage < nPageCount; nPage++ )
 301     delete m_aPages[nPage];
 302
 303   m_aPages.Clear();
 304
 305   return TRUE;
 306 }
 307
 308 // add a page to the notebook
 309 bool wxNotebook::AddPage(wxNotebookPage *pPage,
 310                          const wxString& strText,
 311                          bool bSelect,
 312                          int imageId)
 313 {
 314   return InsertPage(GetPageCount(), pPage, strText, bSelect, imageId);
 315 }
 316
 317 // same as AddPage() but does it at given position
 318 bool wxNotebook::InsertPage(int nPage,
 319                             wxNotebookPage *pPage,
 320                             const wxString& strText,
 321                             bool bSelect,
 322                             int imageId)
 323 {
 324   wxASSERT( pPage != NULL );
 325   wxCHECK( IS_VALID_PAGE(nPage) || nPage == GetPageCount(), FALSE );
 326
 327   // add the tab to the control
 328   TC_ITEM tcItem;
 329   tcItem.mask    = TCIF_TEXT | TCIF_IMAGE;
 330   tcItem.pszText = (char *)strText.c_str();
 331   tcItem.iImage  = imageId;
 332
 333   if ( TabCtrl_InsertItem(m_hwnd, nPage, &tcItem) == -1 ) {
 334     wxLogError("Can't create the notebook page '%s'.", strText.c_str());
 335     return FALSE;
 336   }
 337
 338   // save the pointer to the page
 339   m_aPages.Insert(pPage, nPage);
 340
 341   // some page must be selected: either this one or the first one if there is
 342   // still no selection
 343   if ( bSelect )
 344     m_nSelection = nPage;
 345   else if ( m_nSelection == -1 )
 346     m_nSelection = 0;
 347
 348   // don't show pages by default (we'll need to adjust their size first)
 349   HWND hwnd = (HWND)pPage->GetHWND();
 350   SetWindowLong(hwnd, GWL_STYLE, GetWindowLong(hwnd, GWL_STYLE) & ~WS_VISIBLE);
 351
 352   return TRUE;
 353 }
 354
 355 // ----------------------------------------------------------------------------
 356 // wxNotebook callbacks
 357 // ----------------------------------------------------------------------------
 358
 359 void wxNotebook::OnSize(wxSizeEvent& event)
 360 {
 361   // emulate page change (it's esp. important to do it first time because
 362   // otherwise our page would stay invisible)
 363   int nSel = m_nSelection;
 364   m_nSelection = -1;
 365   SetSelection(nSel);
 366
 367   // fit the notebook page to the tab control's display area
 368   RECT rc;
 369   rc.left = rc.top = 0;
 370   GetSize((int *)&rc.right, (int *)&rc.bottom);
 371
 372   TabCtrl_AdjustRect(m_hwnd, FALSE, &rc);
 373   size_t nCount = m_aPages.Count();
 374   for ( size_t nPage = 0; nPage < nCount; nPage++ ) {
 375     wxNotebookPage *pPage = m_aPages[nPage];
 376     pPage->SetSize(rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top);
 377     if ( pPage->GetAutoLayout() )
 378       pPage->Layout();
 379   }
 380
 381   event.Skip();
 382 }
 383
 384 void wxNotebook::OnSelChange(wxNotebookEvent& event)
 385 {
 386   // is it our tab control?
 387   if ( event.GetEventObject() == this )
 388     ChangePage(event.GetOldSelection(), event.GetSelection());
 389
 390   // we want to give others a chance to process this message as well
 391   event.Skip();
 392 }
 393
 394 void wxNotebook::OnSetFocus(wxFocusEvent& event)
 395 {
 396   // set focus to the currently selected page if any
 397   if ( m_nSelection != -1 )
 398     m_aPages[m_nSelection]->SetFocus();
 399
 400   event.Skip();
 401 }
 402
 403 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 404 {
 405   if ( event.IsWindowChange() ) {
 406     // change pages
 407     AdvanceSelection(event.GetDirection());
 408   }
 409   else {
 410     // pass to the parent
 411     if ( GetParent() ) {
 412       event.SetCurrentFocus(this);
 413       GetParent()->GetEventHandler()->ProcessEvent(event);
 414     }
 415   }
 416 }
 417
 418 // ----------------------------------------------------------------------------
 419 // wxNotebook base class virtuals
 420 // ----------------------------------------------------------------------------
 421
 422 // override these 2 functions to do nothing: everything is done in OnSize
 423
 424 void wxNotebook::SetConstraintSizes(bool /* recurse */)
 425 {
 426   // don't set the sizes of the pages - their correct size is not yet known
 427   wxControl::SetConstraintSizes(FALSE);
 428 }
 429
 430 bool wxNotebook::DoPhase(int /* nPhase */)
 431 {
 432   return TRUE;
 433 }
 434
 435 void wxNotebook::Command(wxCommandEvent& event)
 436 {
 437   wxFAIL_MSG("wxNotebook::Command not implemented");
 438 }
 439
 440 bool wxNotebook::MSWNotify(WXWPARAM wParam, WXLPARAM lParam, WXLPARAM* result)
 441 {
 442   wxNotebookEvent event(wxEVT_NULL, m_windowId);
 443
 444   NMHDR* hdr = (NMHDR *)lParam;
 445   switch ( hdr->code ) {
 446     case TCN_SELCHANGE:
 447       event.SetEventType(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED);
 448       break;
 449
 450     case TCN_SELCHANGING:
 451       event.SetEventType(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING);
 452       break;
 453
 454     default:
 455       return wxControl::MSWNotify(wParam, lParam, result);
 456   }
 457
 458   event.SetSelection(TabCtrl_GetCurSel(m_hwnd));
 459   event.SetOldSelection(m_nSelection);
 460   event.SetEventObject(this);
 461   event.SetInt(LOWORD(wParam)); // ctrl id
 462
 463   bool processed = GetEventHandler()->ProcessEvent(event);
 464   *result = !event.IsAllowed();
 465   return processed;
 466 }
 467
 468 // ----------------------------------------------------------------------------
 469 // wxNotebook helper functions
 470 // ----------------------------------------------------------------------------
 471
 472 // hide the currently active panel and show the new one
 473 void wxNotebook::ChangePage(int nOldSel, int nSel)
 474 {
 475   // MT-FIXME should use a real semaphore
 476   static bool s_bInsideChangePage = FALSE;
 477
 478   // when we call ProcessEvent(), our own OnSelChange() is called which calls
 479   // this function - break the infinite loop
 480   if ( s_bInsideChangePage )
 481     return;
 482
 483   // it's not an error (the message may be generated by the tab control itself)
 484   // and it may happen - just do nothing
 485   if ( nSel == nOldSel )
 486     return;
 487
 488   s_bInsideChangePage = TRUE;
 489
 490   wxNotebookEvent event(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING, m_windowId);
 491   event.SetSelection(nSel);
 492   event.SetOldSelection(nOldSel);
 493   event.SetEventObject(this);
 494   if ( ProcessEvent(event) && !event.IsAllowed() )
 495   {
 496     // program doesn't allow the page change
 497     s_bInsideChangePage = FALSE;
 498     return;
 499   }
 500
 501   if ( nOldSel != -1 )
 502     m_aPages[nOldSel]->Show(FALSE);
 503
 504   wxNotebookPage *pPage = m_aPages[nSel];
 505   pPage->Show(TRUE);
 506   pPage->SetFocus();
 507
 508   event.SetEventType(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED);
 509   ProcessEvent(event);
 510
 511   m_nSelection = nSel;
 512   s_bInsideChangePage = FALSE;
 513 }
 514
 515 void wxNotebook::OnEraseBackground(wxEraseEvent& event)
 516 {
 517     Default();
 518 }
 519