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 // TODO:
  13 // 1) keyboard interface for changing pages ([Shift]+Ctrl-Tab)
  14 // 2) using OnSize() for showing pages for the first time works, but it surely
  15 //    us ugly
  16 // 3) I'm not sure that setting fonts works
  17
  18 // ============================================================================
  19 // declarations
  20 // ============================================================================
  21
  22 // ----------------------------------------------------------------------------
  23 // headers
  24 // ----------------------------------------------------------------------------
  25 #ifdef __GNUG__
  26   #pragma implementation "notebook.h"
  27 #endif
  28
  29 // For compilers that support precompilation, includes "wx.h".
  30 #include "wx/wxprec.h"
  31
  32 #ifdef __BORLANDC__
  33   #pragma hdrstop
  34 #endif
  35
  36 // wxWindows
  37 #ifndef WX_PRECOMP
  38   #include  <wx/string.h>
  39 #endif  // WX_PRECOMP
  40
  41 #include  <wx/log.h>
  42 #include  <wx/imaglist.h>
  43 #include  <wx/notebook.h>
  44
  45 #include  <wx/msw/private.h>
  46
  47 // Windows standard headers
  48 #ifndef   __WIN95__
  49   #error  "wxNotebook is not supported under Windows 3.1"
  50 #endif    //Win95
  51
  52 #ifdef __GNUWIN32__
  53   #include "wx/msw/gnuwin32/extra.h"
  54 #else   //!GnuWin32
  55   #include <commctrl.h>
  56 #endif
  57
  58 // ----------------------------------------------------------------------------
  59 // macros
  60 // ----------------------------------------------------------------------------
  61
  62 // check that the page index is valid
  63 #define IS_VALID_PAGE(nPage) (((nPage) >= 0) && ((nPage) < GetPageCount()))
  64
  65 // hide the ugly cast
  66 #define m_hwnd    (HWND)GetHWND()
  67
  68 // ----------------------------------------------------------------------------
  69 // event table
  70 // ----------------------------------------------------------------------------
  71
  72 #if !USE_SHARED_LIBRARIES
  73   BEGIN_EVENT_TABLE(wxNotebook, wxControl)
  74     EVT_NOTEBOOK_PAGE_CHANGED(-1, wxNotebook::OnSelChange)
  75
  76     EVT_SIZE(wxNotebook::OnSize)
  77     EVT_SET_FOCUS(wxNotebook::OnSetFocus)
  78     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
  79   END_EVENT_TABLE()
  80
  81   IMPLEMENT_DYNAMIC_CLASS(wxNotebook, wxControl)
  82   IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxCommandEvent)
  83 #endif
  84
  85 // ============================================================================
  86 // implementation
  87 // ============================================================================
  88
  89 // ----------------------------------------------------------------------------
  90 // wxNotebook construction
  91 // ----------------------------------------------------------------------------
  92
  93 // common part of all ctors
  94 void wxNotebook::Init()
  95 {
  96   m_pImageList = NULL;
  97   m_nSelection = -1;
  98 }
  99
 100 // default for dynamic class
 101 wxNotebook::wxNotebook()
 102 {
 103   Init();
 104 }
 105
 106 // the same arguments as for wxControl
 107 wxNotebook::wxNotebook(wxWindow *parent,
 108                        wxWindowID id,
 109                        const wxPoint& pos,
 110                        const wxSize& size,
 111                        long style,
 112                        const wxString& name)
 113 {
 114   Init();
 115
 116   Create(parent, id, pos, size, style, name);
 117 }
 118
 119 // Create() function
 120 bool wxNotebook::Create(wxWindow *parent,
 121                         wxWindowID id,
 122                         const wxPoint& pos,
 123                         const wxSize& size,
 124                         long style,
 125                         const wxString& name)
 126 {
 127   // base init
 128   SetName(name);
 129   SetParent(parent);
 130
 131   m_windowId = id == -1 ? NewControlId() : id;
 132
 133   // colors and font
 134   m_backgroundColour = wxColour(GetSysColor(COLOR_BTNFACE));
 135   m_foregroundColour = *wxBLACK ;
 136
 137   m_defaultForegroundColour = *wxBLACK ;
 138   m_defaultBackgroundColour = wxColour(GetSysColor(COLOR_BTNFACE));
 139
 140   // style
 141   m_windowStyle = style;
 142
 143   long tabStyle = WS_CHILD | WS_VISIBLE | WS_TABSTOP | TCS_TABS;
 144   if ( m_windowStyle & wxTC_MULTILINE )
 145     tabStyle |= TCS_MULTILINE;
 146   if ( m_windowStyle & wxBORDER )
 147     tabStyle &= WS_BORDER;
 148
 149   // create the tab control.
 150   m_hWnd = (WXHWND)CreateWindowEx
 151     (
 152       0,                                      // extended style
 153       WC_TABCONTROL,                          // class name for the tab control
 154       "",                                     // no caption
 155       tabStyle,                               // style
 156       pos.x, pos.y, size.x, size.y,           // size and position
 157       (HWND)parent->GetHWND(),                // parent window
 158       (HMENU)m_windowId,                      // child id
 159       wxGetInstance(),                        // current instance
 160       NULL                                    // no class data
 161     );
 162
 163   if ( m_hWnd == 0 ) {
 164     wxLogSysError("Can't create the notebook control");
 165     return FALSE;
 166   }
 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 // @@@ OnSize() is used for setting the font when it's called for the first
 355 //     time because doing it in ::Create() doesn't work (for unknown reasons)
 356 void wxNotebook::OnSize(wxSizeEvent& event)
 357 {
 358   static bool s_bFirstTime = TRUE;
 359   if ( s_bFirstTime ) {
 360     SendMessage((HWND)m_hwnd, WM_SETFONT,
 361                 (WPARAM)GetStockObject(DEFAULT_GUI_FONT),
 362                 MAKELPARAM(TRUE, 0));
 363     s_bFirstTime = FALSE;
 364   }
 365
 366   // emulate page change (it's esp. important to do it first time because
 367   // otherwise our page would stay invisible)
 368   int nSel = m_nSelection;
 369   m_nSelection = -1;
 370   SetSelection(nSel);
 371
 372   event.Skip();
 373 }
 374
 375 void wxNotebook::OnSelChange(wxNotebookEvent& event)
 376 {
 377   // is it our tab control?
 378   if ( event.GetEventObject() == this )
 379     ChangePage(event.GetOldSelection(), event.GetSelection());
 380
 381   // we want to give others a chance to process this message as well
 382   event.Skip();
 383 }
 384
 385 void wxNotebook::OnSetFocus(wxFocusEvent& event)
 386 {
 387   // set focus to the currently selected page if any
 388   if ( m_nSelection != -1 )
 389     m_aPages[m_nSelection]->SetFocus();
 390
 391   event.Skip();
 392 }
 393
 394 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 395 {
 396   if ( event.IsWindowChange() ) {
 397     // change pages
 398     AdvanceSelection(event.GetDirection());
 399   }
 400   else {
 401     // pass to the parent
 402     if ( GetParent() ) {
 403       event.SetCurrentFocus(this);
 404       GetParent()->ProcessEvent(event);
 405     }
 406   }
 407 }
 408
 409 // ----------------------------------------------------------------------------
 410 // wxNotebook base class virtuals
 411 // ----------------------------------------------------------------------------
 412 void wxNotebook::Command(wxCommandEvent& event)
 413 {
 414   wxFAIL_MSG("wxNotebook::Command not implemented");
 415 }
 416
 417 bool wxNotebook::MSWNotify(WXWPARAM wParam, WXLPARAM lParam)
 418 {
 419   wxNotebookEvent event(wxEVT_NULL, m_windowId,
 420                         TabCtrl_GetCurSel(m_hwnd), m_nSelection);
 421
 422   NMHDR* hdr = (NMHDR *)lParam;
 423   switch ( hdr->code ) {
 424     case TCN_SELCHANGE:
 425       event.SetEventType(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED);
 426       break;
 427
 428     case TCN_SELCHANGING:
 429       event.SetEventType(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING);
 430       break;
 431
 432     default :
 433       return wxControl::MSWNotify(wParam, lParam);
 434   }
 435
 436   event.SetEventObject(this);
 437   event.SetInt(LOWORD(wParam));
 438
 439   return ProcessEvent(event);
 440 }
 441
 442 // ----------------------------------------------------------------------------
 443 // wxNotebook helper functions
 444 // ----------------------------------------------------------------------------
 445
 446 // hide the currently active panel and show the new one
 447 void wxNotebook::ChangePage(int nOldSel, int nSel)
 448 {
 449   wxASSERT( nOldSel != nSel ); // impossible
 450
 451   if ( nOldSel != -1 ) {
 452     m_aPages[nOldSel]->Show(FALSE);
 453   }
 454
 455   wxNotebookPage *pPage = m_aPages[nSel];
 456   FitPage(pPage);
 457   pPage->Show(TRUE);
 458
 459   // set focus to the currently selected page
 460   wxWindow *win = m_aPages[nSel];
 461   if ( win->IsKindOf(CLASSINFO(wxPanel)) ) {
 462     wxList *children = win->GetChildren();
 463     if ( children->First() != NULL );
 464       win = (wxWindow *)children->First()->Data();
 465   }
 466   win->SetFocus();
 467
 468   m_nSelection = nSel;
 469 }
 470
 471 // fit the notebook page to the tab control's display area
 472 void wxNotebook::FitPage(wxNotebookPage *pPage)
 473 {
 474   RECT rc;
 475   rc.left = rc.top = 0;
 476   GetSize((int *)&rc.right, (int *)&rc.bottom);
 477
 478   TabCtrl_AdjustRect(m_hwnd, FALSE, &rc);
 479   pPage->SetSize(rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top);
 480 }