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   // @@@ this crashes the application with "Invalid instruction" exception
 165   //     deep inside Windows -- why???
 166   SetWindowFont((HWND)m_hwnd, ::GetStockObject(DEFAULT_GUI_FONT), FALSE);
 167
 168   if ( parent != NULL )
 169     parent->AddChild(this);
 170
 171   SubclassWin(m_hWnd);
 172
 173   return TRUE;
 174 }
 175
 176 // dtor
 177 wxNotebook::~wxNotebook()
 178 {
 179 }
 180
 181 // ----------------------------------------------------------------------------
 182 // wxNotebook accessors
 183 // ----------------------------------------------------------------------------
 184 int wxNotebook::GetPageCount() const
 185 {
 186   // consistency check
 187   wxASSERT( (int)m_aPages.Count() == TabCtrl_GetItemCount(m_hwnd) );
 188
 189   return m_aPages.Count();
 190 }
 191
 192 int wxNotebook::GetRowCount() const
 193 {
 194   return TabCtrl_GetRowCount(m_hwnd);
 195 }
 196
 197 int wxNotebook::SetSelection(int nPage)
 198 {
 199   wxASSERT( IS_VALID_PAGE(nPage) );
 200
 201   ChangePage(m_nSelection, nPage);
 202
 203   return TabCtrl_SetCurSel(m_hwnd, nPage);
 204 }
 205
 206 void wxNotebook::AdvanceSelection(bool bForward)
 207 {
 208   int nSel = GetSelection();
 209   int nMax = GetPageCount() - 1;
 210   if ( bForward )
 211     SetSelection(nSel == nMax ? 0 : nSel + 1);
 212   else
 213     SetSelection(nSel == 0 ? nMax : nSel - 1);
 214 }
 215
 216 bool wxNotebook::SetPageText(int nPage, const wxString& strText)
 217 {
 218   wxASSERT( IS_VALID_PAGE(nPage) );
 219
 220   TC_ITEM tcItem;
 221   tcItem.mask = TCIF_TEXT;
 222   tcItem.pszText = (char *)strText.c_str();
 223
 224   return TabCtrl_SetItem(m_hwnd, nPage, &tcItem) != 0;
 225 }
 226
 227 wxString wxNotebook::GetPageText(int nPage) const
 228 {
 229   wxASSERT( IS_VALID_PAGE(nPage) );
 230
 231   char buf[256];
 232   TC_ITEM tcItem;
 233   tcItem.mask = TCIF_TEXT;
 234   tcItem.pszText = buf;
 235   tcItem.cchTextMax = WXSIZEOF(buf);
 236
 237   wxString str;
 238   if ( TabCtrl_GetItem(m_hwnd, nPage, &tcItem) )
 239     str = tcItem.pszText;
 240
 241   return str;
 242 }
 243
 244 int wxNotebook::GetPageImage(int nPage) const
 245 {
 246   wxASSERT( IS_VALID_PAGE(nPage) );
 247
 248   TC_ITEM tcItem;
 249   tcItem.mask = TCIF_IMAGE;
 250
 251   return TabCtrl_GetItem(m_hwnd, nPage, &tcItem) ? tcItem.iImage : -1;
 252 }
 253
 254 bool wxNotebook::SetPageImage(int nPage, int nImage)
 255 {
 256   wxASSERT( IS_VALID_PAGE(nPage) );
 257
 258   TC_ITEM tcItem;
 259   tcItem.mask = TCIF_IMAGE;
 260   tcItem.iImage = nImage;
 261
 262   return TabCtrl_SetItem(m_hwnd, nPage, &tcItem) != 0;
 263 }
 264
 265 void wxNotebook::SetImageList(wxImageList* imageList)
 266 {
 267   m_pImageList = imageList;
 268   TabCtrl_SetImageList(m_hwnd, (HIMAGELIST)imageList->GetHIMAGELIST());
 269 }
 270
 271 // ----------------------------------------------------------------------------
 272 // wxNotebook operations
 273 // ----------------------------------------------------------------------------
 274
 275 // remove one page from the notebook
 276 bool wxNotebook::DeletePage(int nPage)
 277 {
 278   wxCHECK( IS_VALID_PAGE(nPage), FALSE );
 279
 280   TabCtrl_DeleteItem(m_hwnd, nPage);
 281
 282   delete m_aPages[nPage];
 283   m_aPages.Remove(nPage);
 284
 285   return TRUE;
 286 }
 287
 288 // remove all pages
 289 bool wxNotebook::DeleteAllPages()
 290 {
 291   TabCtrl_DeleteAllItems(m_hwnd);
 292
 293   int nPageCount = GetPageCount();
 294   int nPage;
 295   for ( nPage = 0; nPage < nPageCount; nPage++ )
 296     delete m_aPages[nPage];
 297
 298   m_aPages.Clear();
 299
 300   return TRUE;
 301 }
 302
 303 // add a page to the notebook
 304 bool wxNotebook::AddPage(wxNotebookPage *pPage,
 305                          const wxString& strText,
 306                          bool bSelect,
 307                          int imageId)
 308 {
 309   return InsertPage(GetPageCount(), pPage, strText, bSelect, imageId);
 310 }
 311
 312 // same as AddPage() but does it at given position
 313 bool wxNotebook::InsertPage(int nPage,
 314                             wxNotebookPage *pPage,
 315                             const wxString& strText,
 316                             bool bSelect,
 317                             int imageId)
 318 {
 319   wxASSERT( pPage != NULL );
 320   wxCHECK( IS_VALID_PAGE(nPage) || nPage == GetPageCount(), FALSE );
 321
 322   // add the tab to the control
 323   TC_ITEM tcItem;
 324   tcItem.mask    = TCIF_TEXT | TCIF_IMAGE;
 325   tcItem.pszText = (char *)strText.c_str();
 326   tcItem.iImage  = imageId;
 327
 328   if ( TabCtrl_InsertItem(m_hwnd, nPage, &tcItem) == -1 ) {
 329     wxLogError("Can't create the notebook page '%s'.", strText.c_str());
 330     return FALSE;
 331   }
 332
 333   // save the pointer to the page
 334   m_aPages.Insert(pPage, nPage);
 335
 336   // some page must be selected: either this one or the first one if there is
 337   // still no selection
 338   if ( bSelect )
 339     m_nSelection = nPage;
 340   else if ( m_nSelection == -1 )
 341     m_nSelection = 0;
 342
 343   // don't show pages by default (we'll need to adjust their size first)
 344   HWND hwnd = (HWND)pPage->GetHWND();
 345   SetWindowLong(hwnd, GWL_STYLE, GetWindowLong(hwnd, GWL_STYLE) & ~WS_VISIBLE);
 346
 347   return TRUE;
 348 }
 349
 350 // ----------------------------------------------------------------------------
 351 // wxNotebook callbacks
 352 // ----------------------------------------------------------------------------
 353
 354 void wxNotebook::OnSize(wxSizeEvent& event)
 355 {
 356   // emulate page change (it's esp. important to do it first time because
 357   // otherwise our page would stay invisible)
 358   int nSel = m_nSelection;
 359   m_nSelection = -1;
 360   SetSelection(nSel);
 361
 362   // fit the notebook page to the tab control's display area
 363   RECT rc;
 364   rc.left = rc.top = 0;
 365   GetSize((int *)&rc.right, (int *)&rc.bottom);
 366
 367   TabCtrl_AdjustRect(m_hwnd, FALSE, &rc);
 368   uint nCount = m_aPages.Count();
 369   for ( uint nPage = 0; nPage < nCount; nPage++ ) {
 370     wxNotebookPage *pPage = m_aPages[nPage];
 371     pPage->SetSize(rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top);
 372     if ( pPage->GetAutoLayout() )
 373       pPage->Layout();
 374   }
 375
 376   event.Skip();
 377 }
 378
 379 void wxNotebook::OnSelChange(wxNotebookEvent& event)
 380 {
 381   // is it our tab control?
 382   if ( event.GetEventObject() == this )
 383     ChangePage(event.GetOldSelection(), event.GetSelection());
 384
 385   // we want to give others a chance to process this message as well
 386   event.Skip();
 387 }
 388
 389 void wxNotebook::OnSetFocus(wxFocusEvent& event)
 390 {
 391   // set focus to the currently selected page if any
 392   if ( m_nSelection != -1 )
 393     m_aPages[m_nSelection]->SetFocus();
 394
 395   event.Skip();
 396 }
 397
 398 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 399 {
 400   if ( event.IsWindowChange() ) {
 401     // change pages
 402     AdvanceSelection(event.GetDirection());
 403   }
 404   else {
 405     // pass to the parent
 406     if ( GetParent() ) {
 407       event.SetCurrentFocus(this);
 408       GetParent()->ProcessEvent(event);
 409     }
 410   }
 411 }
 412
 413 // ----------------------------------------------------------------------------
 414 // wxNotebook base class virtuals
 415 // ----------------------------------------------------------------------------
 416
 417 // override these 2 functions to do nothing: everything is done in OnSize
 418
 419 void wxNotebook::SetConstraintSizes(bool /* recurse */)
 420 {
 421   // don't set the sizes of the pages - their correct size is not yet known
 422   wxControl::SetConstraintSizes(FALSE);
 423 }
 424
 425 bool wxNotebook::DoPhase(int /* nPhase */)
 426 {
 427   return TRUE;
 428 }
 429
 430 void wxNotebook::Command(wxCommandEvent& event)
 431 {
 432   wxFAIL_MSG("wxNotebook::Command not implemented");
 433 }
 434
 435 bool wxNotebook::MSWNotify(WXWPARAM wParam, WXLPARAM lParam)
 436 {
 437   wxNotebookEvent event(wxEVT_NULL, m_windowId,
 438                         TabCtrl_GetCurSel(m_hwnd), m_nSelection);
 439
 440   NMHDR* hdr = (NMHDR *)lParam;
 441   switch ( hdr->code ) {
 442     case TCN_SELCHANGE:
 443       event.SetEventType(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED);
 444       break;
 445
 446     case TCN_SELCHANGING:
 447       event.SetEventType(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING);
 448       break;
 449
 450       // if we don't intercept it here this message is passed to our parent (if
 451       // we have one) and then lost in it's DefWindowProc
 452     case UDN_DELTAPOS:
 453       MSWDefWindowProc(WM_NOTIFY, wParam, lParam);
 454       return TRUE;
 455
 456     default :
 457       return wxControl::MSWNotify(wParam, lParam);
 458   }
 459
 460   event.SetEventObject(this);
 461   event.SetInt(LOWORD(wParam));
 462
 463   return ProcessEvent(event);
 464 }
 465
 466 // ----------------------------------------------------------------------------
 467 // wxNotebook helper functions
 468 // ----------------------------------------------------------------------------
 469
 470 // hide the currently active panel and show the new one
 471 void wxNotebook::ChangePage(int nOldSel, int nSel)
 472 {
 473   // it's not an error (the message may be generated by the tab control itself)
 474   // and it may happen - just do nothing
 475   if ( nSel == nOldSel )
 476     return;
 477
 478   if ( nOldSel != -1 )
 479     m_aPages[nOldSel]->Show(FALSE);
 480
 481   wxNotebookPage *pPage = m_aPages[nSel];
 482   pPage->Show(TRUE);
 483   pPage->SetFocus();
 484
 485   m_nSelection = nSel;
 486 }