src/os2/notebook.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        notebook.cpp
   3 // Purpose:     implementation of wxNotebook
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     10/12/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) David Webster
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 // wxWindows
  16 #ifndef WX_PRECOMP
  17   #include  <wx/string.h>
  18 #endif  // WX_PRECOMP
  19
  20 #include  <wx/log.h>
  21 #include  <wx/imaglist.h>
  22 #include  <wx/event.h>
  23 #include  <wx/control.h>
  24 #include  <wx/notebook.h>
  25
  26 #include  <wx/os2/private.h>
  27
  28
  29 // ----------------------------------------------------------------------------
  30 // macros
  31 // ----------------------------------------------------------------------------
  32 // check that the page index is valid
  33 #define IS_VALID_PAGE(nPage) (((nPage) >= 0) && ((nPage) < GetPageCount()))
  34
  35 // hide the ugly cast
  36 #define m_hwnd    (HWND)GetHWND()
  37
  38 // ----------------------------------------------------------------------------
  39 // constants
  40 // ----------------------------------------------------------------------------
  41
  42 // This is a work-around for missing defines in gcc-2.95 headers
  43 #ifndef TCS_RIGHT
  44     #define TCS_RIGHT       0x0002
  45 #endif
  46
  47 #ifndef TCS_VERTICAL
  48     #define TCS_VERTICAL    0x0080
  49 #endif
  50
  51 #ifndef TCS_BOTTOM
  52     #define TCS_BOTTOM      TCS_RIGHT
  53 #endif
  54
  55 // ----------------------------------------------------------------------------
  56 // event table
  57 // ----------------------------------------------------------------------------
  58
  59   BEGIN_EVENT_TABLE(wxNotebook, wxControl)
  60     EVT_NOTEBOOK_PAGE_CHANGED(-1, wxNotebook::OnSelChange)
  61     EVT_SIZE(wxNotebook::OnSize)
  62     EVT_SET_FOCUS(wxNotebook::OnSetFocus)
  63     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
  64   END_EVENT_TABLE()
  65
  66   IMPLEMENT_DYNAMIC_CLASS(wxNotebook, wxControl)
  67   IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxNotifyEvent)
  68
  69 // ============================================================================
  70 // implementation
  71 // ============================================================================
  72
  73 // ----------------------------------------------------------------------------
  74 // wxNotebook construction
  75 // ----------------------------------------------------------------------------
  76
  77 // common part of all ctors
  78 void wxNotebook::Init()
  79 {
  80     m_pImageList = NULL;
  81     m_nSelection = -1;
  82 }
  83
  84 // default for dynamic class
  85 wxNotebook::wxNotebook()
  86 {
  87     Init();
  88 }
  89
  90 // the same arguments as for wxControl
  91 wxNotebook::wxNotebook(wxWindow *parent,
  92                        wxWindowID id,
  93                        const wxPoint& pos,
  94                        const wxSize& size,
  95                        long style,
  96                        const wxString& name)
  97 {
  98     Init();
  99
 100     Create(parent, id, pos, size, style, name);
 101 }
 102
 103 // Create() function
 104 bool wxNotebook::Create(wxWindow *parent,
 105                         wxWindowID id,
 106                         const wxPoint& pos,
 107                         const wxSize& size,
 108                         long style,
 109                         const wxString& name)
 110 {
 111   // base init
 112   if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) )
 113       return FALSE;
 114
 115   // colors and font
 116 // TODO:  m_backgroundColour = wxColour(GetSysColor(COLOR_BTNFACE));
 117   m_foregroundColour = *wxBLACK ;
 118
 119     // TODO:
 120 /*
 121   // style
 122   m_windowStyle = style | wxTAB_TRAVERSAL;
 123
 124   long tabStyle = WS_CHILD | WS_VISIBLE | WS_TABSTOP | TCS_TABS;
 125
 126   if (m_windowStyle & wxCLIP_CHILDREN)
 127     tabStyle |= WS_CLIPCHILDREN;
 128   if ( m_windowStyle & wxTC_MULTILINE )
 129     tabStyle |= TCS_MULTILINE;
 130   if ( m_windowStyle & wxBORDER )
 131     tabStyle &= WS_BORDER;
 132   if (m_windowStyle & wxNB_FIXEDWIDTH)
 133     tabStyle |= TCS_FIXEDWIDTH ;
 134   if (m_windowStyle & wxNB_BOTTOM)
 135     tabStyle |= TCS_RIGHT;
 136   if (m_windowStyle & wxNB_LEFT)
 137     tabStyle |= TCS_VERTICAL;
 138   if (m_windowStyle & wxNB_RIGHT)
 139     tabStyle |= TCS_VERTICAL|TCS_RIGHT;
 140
 141
 142   if ( !MSWCreate(GetId(), GetParent(), WC_TABCONTROL,
 143                   this, NULL, pos.x, pos.y, size.x, size.y,
 144                   tabStyle, NULL, 0) )
 145   {
 146     return FALSE;
 147   }
 148
 149   // Not all compilers recognise SetWindowFont
 150   ::SendMessage(GetHwnd(), WM_SETFONT,
 151                 (WPARAM)::GetStockObject(DEFAULT_GUI_FONT), TRUE);
 152
 153
 154   if ( parent != NULL )
 155     parent->AddChild(this);
 156 */
 157   SubclassWin(m_hWnd);
 158
 159     return FALSE;
 160 }
 161
 162 // dtor
 163 wxNotebook::~wxNotebook()
 164 {
 165 }
 166
 167 // ----------------------------------------------------------------------------
 168 // wxNotebook accessors
 169 // ----------------------------------------------------------------------------
 170 int wxNotebook::GetPageCount() const
 171 {
 172     return m_aPages.Count();
 173 }
 174
 175 int wxNotebook::GetRowCount() const
 176 {
 177     // TODO
 178     return 0;
 179 }
 180
 181 int wxNotebook::SetSelection(int nPage)
 182 {
 183     wxCHECK_MSG( IS_VALID_PAGE(nPage), -1, wxT("notebook page out of range") );
 184
 185     ChangePage(m_nSelection, nPage);
 186
 187     // TODO
 188     return 0;
 189 }
 190
 191 void wxNotebook::AdvanceSelection(bool bForward)
 192 {
 193     int nSel = GetSelection();
 194     int nMax = GetPageCount() - 1;
 195     if ( bForward )
 196         SetSelection(nSel == nMax ? 0 : nSel + 1);
 197     else
 198         SetSelection(nSel == 0 ? nMax : nSel - 1);
 199 }
 200
 201 bool wxNotebook::SetPageText(int nPage, const wxString& strText)
 202 {
 203     wxCHECK_MSG( IS_VALID_PAGE(nPage), FALSE, wxT("notebook page out of range") );
 204
 205     // TODO
 206     return FALSE;
 207 }
 208
 209 wxString wxNotebook::GetPageText(int nPage) const
 210 {
 211     wxCHECK_MSG( IS_VALID_PAGE(nPage), wxT(""), wxT("notebook page out of range") );
 212
 213     // TODO
 214     return wxString("");
 215 }
 216
 217 int wxNotebook::GetPageImage(int nPage) const
 218 {
 219     wxCHECK_MSG( IS_VALID_PAGE(nPage), -1, wxT("notebook page out of range") );
 220
 221     // TODO
 222     return 0;
 223 }
 224
 225 bool wxNotebook::SetPageImage(int nPage, int nImage)
 226 {
 227     wxCHECK_MSG( IS_VALID_PAGE(nPage), FALSE, wxT("notebook page out of range") );
 228
 229     // TODO
 230     return FALSE;
 231 }
 232
 233 void wxNotebook::SetImageList(wxImageList* imageList)
 234 {
 235     m_pImageList = imageList;
 236     // TODO
 237 }
 238
 239 void wxNotebook::SetTabSize(const wxSize& sz)
 240 {
 241     // TODO
 242 }
 243
 244 // ----------------------------------------------------------------------------
 245 // wxNotebook operations
 246 // ----------------------------------------------------------------------------
 247
 248 // remove one page from the notebook
 249 bool wxNotebook::DeletePage(int nPage)
 250 {
 251     wxCHECK_MSG( IS_VALID_PAGE(nPage), FALSE, wxT("notebook page out of range") );
 252
 253     // TODO: delete native widget page
 254
 255     delete m_aPages[nPage];
 256     m_aPages.Remove(nPage);
 257
 258     return TRUE;
 259 }
 260
 261 // remove one page from the notebook, without deleting the window
 262 bool wxNotebook::RemovePage(int nPage)
 263 {
 264     wxCHECK_MSG( IS_VALID_PAGE(nPage), FALSE, wxT("notebook page out of range") );
 265
 266     m_aPages.Remove(nPage);
 267
 268     return TRUE;
 269 }
 270
 271 // remove all pages
 272 bool wxNotebook::DeleteAllPages()
 273 {
 274     // TODO: delete native widget pages
 275
 276     int nPageCount = GetPageCount();
 277     int nPage;
 278     for ( nPage = 0; nPage < nPageCount; nPage++ )
 279         delete m_aPages[nPage];
 280
 281     m_aPages.Clear();
 282
 283     return TRUE;
 284 }
 285
 286 // add a page to the notebook
 287 bool wxNotebook::AddPage(wxNotebookPage *pPage,
 288                          const wxString& strText,
 289                          bool bSelect,
 290                          int imageId)
 291 {
 292     return InsertPage(GetPageCount(), pPage, strText, bSelect, imageId);
 293 }
 294
 295 // same as AddPage() but does it at given position
 296 bool wxNotebook::InsertPage(int nPage,
 297                             wxNotebookPage *pPage,
 298                             const wxString& strText,
 299                             bool bSelect,
 300                             int imageId)
 301 {
 302     wxASSERT( pPage != NULL );
 303     wxCHECK( IS_VALID_PAGE(nPage) || nPage == GetPageCount(), FALSE );
 304
 305     // TODO: insert native widget page
 306
 307     // save the pointer to the page
 308     m_aPages.Insert(pPage, nPage);
 309
 310     // some page must be selected: either this one or the first one if there is
 311     // still no selection
 312     if ( bSelect )
 313         m_nSelection = nPage;
 314     else if ( m_nSelection == -1 )
 315         m_nSelection = 0;
 316
 317     return TRUE;
 318 }
 319
 320 // ----------------------------------------------------------------------------
 321 // wxNotebook callbacks
 322 // ----------------------------------------------------------------------------
 323
 324 // @@@ OnSize() is used for setting the font when it's called for the first
 325 //     time because doing it in ::Create() doesn't work (for unknown reasons)
 326 void wxNotebook::OnSize(wxSizeEvent& event)
 327 {
 328     static bool s_bFirstTime = TRUE;
 329     if ( s_bFirstTime ) {
 330         // TODO: any first-time-size processing.
 331         s_bFirstTime = FALSE;
 332     }
 333
 334     // TODO: all this may or may not be necessary for your platform
 335
 336     // emulate page change (it's esp. important to do it first time because
 337     // otherwise our page would stay invisible)
 338     int nSel = m_nSelection;
 339     m_nSelection = -1;
 340     SetSelection(nSel);
 341
 342     // fit the notebook page to the tab control's display area
 343     int w, h;
 344     GetSize(&w, &h);
 345
 346     unsigned int nCount = m_aPages.Count();
 347     for ( unsigned int nPage = 0; nPage < nCount; nPage++ ) {
 348         wxNotebookPage *pPage = m_aPages[nPage];
 349         pPage->SetSize(0, 0, w, h);
 350 #if wxUSE_CONSTRAINTS
 351         if ( pPage->GetAutoLayout() )
 352             pPage->Layout();
 353 #endif //wxUSE_CONSTRAINTS
 354
 355     }
 356
 357     // Processing continues to next OnSize
 358     event.Skip();
 359 }
 360
 361 void wxNotebook::OnSelChange(wxNotebookEvent& event)
 362 {
 363     // is it our tab control?
 364     if ( event.GetEventObject() == this )
 365     {
 366         int sel = event.GetOldSelection();
 367         if ( sel != -1 )
 368             m_aPages[sel]->Show(FALSE);
 369
 370         sel = event.GetSelection();
 371         if ( sel != -1 )
 372         {
 373             wxNotebookPage *pPage = m_aPages[sel];
 374             pPage->Show(TRUE);
 375             pPage->SetFocus();
 376         }
 377
 378         m_nSelection = sel;
 379   }
 380     // we want to give others a chance to process this message as well
 381     event.Skip();
 382 }
 383
 384 void wxNotebook::OnSetFocus(wxFocusEvent& event)
 385 {
 386     // set focus to the currently selected page if any
 387     if ( m_nSelection != -1 )
 388         m_aPages[m_nSelection]->SetFocus();
 389
 390     event.Skip();
 391 }
 392
 393 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 394 {
 395     if ( event.IsWindowChange() ) {
 396         // change pages
 397         AdvanceSelection(event.GetDirection());
 398     }
 399     else {
 400         // pass to the parent
 401         if ( GetParent() ) {
 402             event.SetCurrentFocus(this);
 403             GetParent()->ProcessEvent(event);
 404         }
 405     }
 406 }
 407
 408 // ----------------------------------------------------------------------------
 409 // wxNotebook base class virtuals
 410 // ----------------------------------------------------------------------------
 411
 412 // override these 2 functions to do nothing: everything is done in OnSize
 413
 414 void wxNotebook::SetConstraintSizes(bool /* recurse */)
 415 {
 416 #if wxUSE_CONSTRAINTS
 417     // don't set the sizes of the pages - their correct size is not yet known
 418     wxControl::SetConstraintSizes(FALSE);
 419 #endif
 420 }
 421
 422 bool wxNotebook::DoPhase(int /* nPhase */)
 423 {
 424     return TRUE;
 425 }
 426
 427 bool wxNotebook::OS2OnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM* result)
 428 {
 429   wxNotebookEvent event(wxEVT_NULL, m_windowId);
 430 //TODO:
 431 /*
 432   NMHDR* hdr = (NMHDR *)lParam;
 433   switch ( hdr->code ) {
 434     case TCN_SELCHANGE:
 435       event.SetEventType(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED);
 436       break;
 437
 438     case TCN_SELCHANGING:
 439       event.SetEventType(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING);
 440       break;
 441
 442     default:
 443       return wxControl::MSWOnNotify(idCtrl, lParam, result);
 444   }
 445 */
 446 // TODO:    event.SetSelection(TabCtrl_GetCurSel(m_hwnd));
 447     event.SetOldSelection(m_nSelection);
 448     event.SetEventObject(this);
 449     event.SetInt(idCtrl);
 450
 451     bool processed = GetEventHandler()->ProcessEvent(event);
 452 // TODO:   *result = !event.IsAllowed();
 453     return processed;
 454 }
 455
 456 // ----------------------------------------------------------------------------
 457 // wxNotebook helper functions
 458 // ----------------------------------------------------------------------------
 459
 460 // hide the currently active panel and show the new one
 461 void wxNotebook::ChangePage(int nOldSel, int nSel)
 462 {
 463     // MT-FIXME should use a real semaphore
 464     static bool s_bInsideChangePage = FALSE;
 465
 466     // when we call ProcessEvent(), our own OnSelChange() is called which calls
 467     // this function - break the infinite loop
 468     if ( s_bInsideChangePage )
 469         return;
 470
 471     // it's not an error (the message may be generated by the tab control itself)
 472     // and it may happen - just do nothing
 473     if ( nSel == nOldSel )
 474         return;
 475
 476     s_bInsideChangePage = TRUE;
 477
 478     wxNotebookEvent event(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING, m_windowId);
 479     event.SetSelection(nSel);
 480     event.SetOldSelection(nOldSel);
 481     event.SetEventObject(this);
 482     if ( ProcessEvent(event) && !event.IsAllowed() )
 483     {
 484         // program doesn't allow the page change
 485         s_bInsideChangePage = FALSE;
 486         return;
 487     }
 488
 489     event.SetEventType(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED);
 490     ProcessEvent(event);
 491
 492     s_bInsideChangePage = FALSE;
 493 }
 494