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 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19 #ifdef __GNUG__
  20   #pragma implementation "notebook.h"
  21 #endif
  22
  23 // For compilers that support precompilation, includes "wx.h".
  24 #include "wx/wxprec.h"
  25
  26 #ifdef __BORLANDC__
  27   #pragma hdrstop
  28 #endif
  29
  30 // wxWindows
  31 #ifndef WX_PRECOMP
  32   #include  <wx/string.h>
  33 #endif  // WX_PRECOMP
  34
  35 #include  <wx/log.h>
  36 #include  <wx/imaglist.h>
  37 #include  <wx/notebook.h>
  38
  39 #include  <wx/msw/private.h>
  40
  41 // Windows standard headers
  42 #ifndef   __WIN95__
  43   #error  "wxNotebook is not supported under Windows 3.1"
  44 #endif    //Win95
  45
  46 #include  <windowsx.h>  // for SetWindowFont
  47
  48 #ifdef __GNUWIN32__
  49   #include "wx/msw/gnuwin32/extra.h"
  50 #else   //!GnuWin32
  51   #include <commctrl.h>
  52 #endif
  53
  54 // ----------------------------------------------------------------------------
  55 // macros
  56 // ----------------------------------------------------------------------------
  57
  58 // check that the page index is valid
  59 #define IS_VALID_PAGE(nPage) (((nPage) >= 0) && ((nPage) < GetPageCount()))
  60
  61 // hide the ugly cast
  62 #define m_hwnd    (HWND)GetHWND()
  63
  64 // ----------------------------------------------------------------------------
  65 // event table
  66 // ----------------------------------------------------------------------------
  67
  68 #if !USE_SHARED_LIBRARIES
  69   BEGIN_EVENT_TABLE(wxNotebook, wxControl)
  70     EVT_NOTEBOOK_PAGE_CHANGED(-1, wxNotebook::OnSelChange)
  71
  72     EVT_SIZE(wxNotebook::OnSize)
  73     EVT_SET_FOCUS(wxNotebook::OnSetFocus)
  74     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
  75   END_EVENT_TABLE()
  76
  77   IMPLEMENT_DYNAMIC_CLASS(wxNotebook, wxControl)
  78   IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxCommandEvent)
  79 #endif
  80
  81 // ============================================================================
  82 // implementation
  83 // ============================================================================
  84
  85 // ----------------------------------------------------------------------------
  86 // wxNotebook construction
  87 // ----------------------------------------------------------------------------
  88
  89 // common part of all ctors
  90 void wxNotebook::Init()
  91 {
  92   m_pImageList = NULL;
  93   m_nSelection = -1;
  94 }
  95
  96 // default for dynamic class
  97 wxNotebook::wxNotebook()
  98 {
  99   Init();
 100 }
 101
 102 // the same arguments as for wxControl
 103 wxNotebook::wxNotebook(wxWindow *parent,
 104                        wxWindowID id,
 105                        const wxPoint& pos,
 106                        const wxSize& size,
 107                        long style,
 108                        const wxString& name)
 109 {
 110   Init();
 111
 112   Create(parent, id, pos, size, style, name);
 113 }
 114
 115 // Create() function
 116 bool wxNotebook::Create(wxWindow *parent,
 117                         wxWindowID id,
 118                         const wxPoint& pos,
 119                         const wxSize& size,
 120                         long style,
 121                         const wxString& name)
 122 {
 123   // base init
 124   SetName(name);
 125   SetParent(parent);
 126
 127   m_windowId = id == -1 ? NewControlId() : id;
 128
 129   // colors and font
 130   m_backgroundColour = wxColour(GetSysColor(COLOR_BTNFACE));
 131   m_foregroundColour = *wxBLACK ;
 132
 133   m_defaultForegroundColour = *wxBLACK ;
 134   m_defaultBackgroundColour = wxColour(GetSysColor(COLOR_BTNFACE));
 135
 136   // style
 137   m_windowStyle = style;
 138
 139   long tabStyle = WS_CHILD | WS_VISIBLE | WS_TABSTOP | TCS_TABS;
 140   if ( m_windowStyle & wxTC_MULTILINE )
 141     tabStyle |= TCS_MULTILINE;
 142   if ( m_windowStyle & wxBORDER )
 143     tabStyle &= WS_BORDER;
 144
 145   // create the tab control.
 146   m_hWnd = (WXHWND)CreateWindowEx
 147     (
 148       0,                                      // extended style
 149       WC_TABCONTROL,                          // class name for the tab control
 150       "",                                     // no caption
 151       tabStyle,                               // style
 152       pos.x, pos.y, size.x, size.y,           // size and position
 153       (HWND)parent->GetHWND(),                // parent window
 154       (HMENU)m_windowId,                      // child id
 155       wxGetInstance(),                        // current instance
 156       NULL                                    // no class data
 157     );
 158
 159   if ( m_hWnd == 0 ) {
 160     wxLogSysError("Can't create the notebook control");
 161     return FALSE;
 162   }
 163
 164   SetWindowFont((HWND)m_hwnd, ::GetStockObject(DEFAULT_GUI_FONT), FALSE);
 165
 166   if ( parent != NULL )
 167     parent->AddChild(this);
 168
 169   SubclassWin(m_hWnd);
 170
 171   return TRUE;
 172 }
 173
 174 // dtor
 175 wxNotebook::~wxNotebook()
 176 {
 177 }
 178
 179 // ----------------------------------------------------------------------------
 180 // wxNotebook accessors
 181 // ----------------------------------------------------------------------------
 182 int wxNotebook::GetPageCount() const
 183 {
 184   // consistency check
 185   wxASSERT( (int)m_aPages.Count() == TabCtrl_GetItemCount(m_hwnd) );
 186
 187   return m_aPages.Count();
 188 }
 189
 190 int wxNotebook::GetRowCount() const
 191 {
 192   return TabCtrl_GetRowCount(m_hwnd);
 193 }
 194
 195 int wxNotebook::SetSelection(int nPage)
 196 {
 197   wxASSERT( IS_VALID_PAGE(nPage) );
 198
 199   ChangePage(m_nSelection, nPage);
 200
 201   return TabCtrl_SetCurSel(m_hwnd, nPage);
 202 }
 203
 204 void wxNotebook::AdvanceSelection(bool bForward)
 205 {
 206   int nSel = GetSelection();
 207   int nMax = GetPageCount() - 1;
 208   if ( bForward )
 209     SetSelection(nSel == nMax ? 0 : nSel + 1);
 210   else
 211     SetSelection(nSel == 0 ? nMax : nSel - 1);
 212 }
 213
 214 bool wxNotebook::SetPageText(int nPage, const wxString& strText)
 215 {
 216   wxASSERT( IS_VALID_PAGE(nPage) );
 217
 218   TC_ITEM tcItem;
 219   tcItem.mask = TCIF_TEXT;
 220   tcItem.pszText = (char *)strText.c_str();
 221
 222   return TabCtrl_SetItem(m_hwnd, nPage, &tcItem) != 0;
 223 }
 224
 225 wxString wxNotebook::GetPageText(int nPage) const
 226 {
 227   wxASSERT( IS_VALID_PAGE(nPage) );
 228
 229   char buf[256];
 230   TC_ITEM tcItem;
 231   tcItem.mask = TCIF_TEXT;
 232   tcItem.pszText = buf;
 233   tcItem.cchTextMax = WXSIZEOF(buf);
 234
 235   wxString str;
 236   if ( TabCtrl_GetItem(m_hwnd, nPage, &tcItem) )
 237     str = tcItem.pszText;
 238
 239   return str;
 240 }
 241
 242 int wxNotebook::GetPageImage(int nPage) const
 243 {
 244   wxASSERT( IS_VALID_PAGE(nPage) );
 245
 246   TC_ITEM tcItem;
 247   tcItem.mask = TCIF_IMAGE;
 248
 249   return TabCtrl_GetItem(m_hwnd, nPage, &tcItem) ? tcItem.iImage : -1;
 250 }
 251
 252 bool wxNotebook::SetPageImage(int nPage, int nImage)
 253 {
 254   wxASSERT( IS_VALID_PAGE(nPage) );
 255
 256   TC_ITEM tcItem;
 257   tcItem.mask = TCIF_IMAGE;
 258   tcItem.iImage = nImage;
 259
 260   return TabCtrl_SetItem(m_hwnd, nPage, &tcItem) != 0;
 261 }
 262
 263 void wxNotebook::SetImageList(wxImageList* imageList)
 264 {
 265   m_pImageList = imageList;
 266   TabCtrl_SetImageList(m_hwnd, (HIMAGELIST)imageList->GetHIMAGELIST());
 267 }
 268
 269 // ----------------------------------------------------------------------------
 270 // wxNotebook operations
 271 // ----------------------------------------------------------------------------
 272
 273 // remove one page from the notebook
 274 bool wxNotebook::DeletePage(int nPage)
 275 {
 276   wxCHECK( IS_VALID_PAGE(nPage), FALSE );
 277
 278   TabCtrl_DeleteItem(m_hwnd, nPage);
 279
 280   delete m_aPages[nPage];
 281   m_aPages.Remove(nPage);
 282
 283   return TRUE;
 284 }
 285
 286 // remove all pages
 287 bool wxNotebook::DeleteAllPages()
 288 {
 289   TabCtrl_DeleteAllItems(m_hwnd);
 290
 291   int nPageCount = GetPageCount();
 292   int nPage;
 293   for ( nPage = 0; nPage < nPageCount; nPage++ )
 294     delete m_aPages[nPage];
 295
 296   m_aPages.Clear();
 297
 298   return TRUE;
 299 }
 300
 301 // add a page to the notebook
 302 bool wxNotebook::AddPage(wxNotebookPage *pPage,
 303                          const wxString& strText,
 304                          bool bSelect,
 305                          int imageId)
 306 {
 307   return InsertPage(GetPageCount(), pPage, strText, bSelect, imageId);
 308 }
 309
 310 // same as AddPage() but does it at given position
 311 bool wxNotebook::InsertPage(int nPage,
 312                             wxNotebookPage *pPage,
 313                             const wxString& strText,
 314                             bool bSelect,
 315                             int imageId)
 316 {
 317   wxASSERT( pPage != NULL );
 318   wxCHECK( IS_VALID_PAGE(nPage) || nPage == GetPageCount(), FALSE );
 319
 320   // add the tab to the control
 321   TC_ITEM tcItem;
 322   tcItem.mask    = TCIF_TEXT | TCIF_IMAGE;
 323   tcItem.pszText = (char *)strText.c_str();
 324   tcItem.iImage  = imageId;
 325
 326   if ( TabCtrl_InsertItem(m_hwnd, nPage, &tcItem) == -1 ) {
 327     wxLogError("Can't create the notebook page '%s'.", strText.c_str());
 328     return FALSE;
 329   }
 330
 331   // save the pointer to the page
 332   m_aPages.Insert(pPage, nPage);
 333
 334   // some page must be selected: either this one or the first one if there is
 335   // still no selection
 336   if ( bSelect )
 337     m_nSelection = nPage;
 338   else if ( m_nSelection == -1 )
 339     m_nSelection = 0;
 340
 341   // don't show pages by default (we'll need to adjust their size first)
 342   HWND hwnd = (HWND)pPage->GetHWND();
 343   SetWindowLong(hwnd, GWL_STYLE, GetWindowLong(hwnd, GWL_STYLE) & ~WS_VISIBLE);
 344
 345   return TRUE;
 346 }
 347
 348 // ----------------------------------------------------------------------------
 349 // wxNotebook callbacks
 350 // ----------------------------------------------------------------------------
 351
 352 void wxNotebook::OnSize(wxSizeEvent& event)
 353 {
 354   // emulate page change (it's esp. important to do it first time because
 355   // otherwise our page would stay invisible)
 356   int nSel = m_nSelection;
 357   m_nSelection = -1;
 358   SetSelection(nSel);
 359
 360   // fit the notebook page to the tab control's display area
 361   RECT rc;
 362   rc.left = rc.top = 0;
 363   GetSize((int *)&rc.right, (int *)&rc.bottom);
 364
 365   TabCtrl_AdjustRect(m_hwnd, FALSE, &rc);
 366   uint nCount = m_aPages.Count();
 367   for ( uint nPage = 0; nPage < nCount; nPage++ ) {
 368     wxNotebookPage *pPage = m_aPages[nPage];
 369     pPage->SetSize(rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top);
 370     if ( pPage->GetAutoLayout() )
 371       pPage->Layout();
 372   }
 373
 374   event.Skip();
 375 }
 376
 377 void wxNotebook::OnSelChange(wxNotebookEvent& event)
 378 {
 379   // is it our tab control?
 380   if ( event.GetEventObject() == this )
 381     ChangePage(event.GetOldSelection(), event.GetSelection());
 382
 383   // we want to give others a chance to process this message as well
 384   event.Skip();
 385 }
 386
 387 void wxNotebook::OnSetFocus(wxFocusEvent& event)
 388 {
 389   // set focus to the currently selected page if any
 390   if ( m_nSelection != -1 )
 391     m_aPages[m_nSelection]->SetFocus();
 392
 393   event.Skip();
 394 }
 395
 396 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 397 {
 398   if ( event.IsWindowChange() ) {
 399     // change pages
 400     AdvanceSelection(event.GetDirection());
 401   }
 402   else {
 403     // pass to the parent
 404     if ( GetParent() ) {
 405       event.SetCurrentFocus(this);
 406       GetParent()->ProcessEvent(event);
 407     }
 408   }
 409 }
 410
 411 // ----------------------------------------------------------------------------
 412 // wxNotebook base class virtuals
 413 // ----------------------------------------------------------------------------
 414
 415 // override these 2 functions to do nothing: everything is done in OnSize
 416
 417 void wxNotebook::SetConstraintSizes(bool /* recurse */)
 418 {
 419   // don't set the sizes of the pages - their correct size is not yet known
 420   wxControl::SetConstraintSizes(FALSE);
 421 }
 422
 423 bool wxNotebook::DoPhase(int /* nPhase */)
 424 {
 425   return TRUE;
 426 }
 427
 428 void wxNotebook::Command(wxCommandEvent& event)
 429 {
 430   wxFAIL_MSG("wxNotebook::Command not implemented");
 431 }
 432
 433 bool wxNotebook::MSWNotify(WXWPARAM wParam, WXLPARAM lParam)
 434 {
 435   wxNotebookEvent event(wxEVT_NULL, m_windowId);
 436
 437   NMHDR* hdr = (NMHDR *)lParam;
 438   switch ( hdr->code ) {
 439     case TCN_SELCHANGE:
 440       event.SetEventType(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED);
 441       break;
 442
 443     case TCN_SELCHANGING:
 444       event.SetEventType(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING);
 445       break;
 446
 447       // prevent this msg from being passed to wxControl::MSWNotify which would
 448       // retrun FALSE disabling the change of page
 449     case UDN_DELTAPOS:
 450       return TRUE;
 451
 452     default :
 453       return wxControl::MSWNotify(wParam, lParam);
 454   }
 455
 456   event.SetSelection(TabCtrl_GetCurSel(m_hwnd));
 457   event.SetOldSelection(m_nSelection);
 458   event.SetEventObject(this);
 459   event.SetInt(LOWORD(wParam));
 460
 461   return ProcessEvent(event);
 462 }
 463
 464 // ----------------------------------------------------------------------------
 465 // wxNotebook helper functions
 466 // ----------------------------------------------------------------------------
 467
 468 // hide the currently active panel and show the new one
 469 void wxNotebook::ChangePage(int nOldSel, int nSel)
 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   if ( nOldSel != -1 )
 477     m_aPages[nOldSel]->Show(FALSE);
 478
 479   wxNotebookPage *pPage = m_aPages[nSel];
 480   pPage->Show(TRUE);
 481   pPage->SetFocus();
 482
 483   m_nSelection = nSel;
 484 }