src/gtk/notebook.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        notebook.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Created:     01/02/97
   6 // Id:
   7 // Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "notebook.h"
  13 #endif
  14
  15 #include "wx/notebook.h"
  16 #include "wx/panel.h"
  17 #include "wx/utils.h"
  18 #include "wx/imaglist.h"
  19 #include "wx/intl.h"
  20 #include "wx/log.h"
  21
  22 //-----------------------------------------------------------------------------
  23 // wxNotebookPage
  24 //-----------------------------------------------------------------------------
  25
  26 class wxNotebookPage: public wxObject
  27 {
  28 public:
  29   wxNotebookPage()
  30   {
  31     m_id = -1;
  32     m_text = "";
  33     m_image = -1;
  34     m_page = NULL;
  35     m_client = NULL;
  36     m_parent = NULL;
  37   };
  38
  39 //private:
  40   int                m_id;
  41   wxString           m_text;
  42   int                m_image;
  43   GtkNotebookPage   *m_page;
  44   GtkLabel          *m_label;
  45   wxWindow          *m_client;
  46   GtkNotebook       *m_parent;
  47 };
  48
  49 //-----------------------------------------------------------------------------
  50 // GTK callbacks
  51 //-----------------------------------------------------------------------------
  52
  53 // page change callback
  54 static void gtk_notebook_page_change_callback(GtkNotebook *WXUNUSED(widget),
  55                                               GtkNotebookPage *WXUNUSED(page),
  56                                               gint nPage,
  57                                               gpointer data)
  58 {
  59   wxNotebook *notebook = (wxNotebook *)data;
  60
  61   int nOld = notebook->GetSelection();
  62
  63   // TODO: emulate PAGE_CHANGING event
  64   wxNotebookEvent event(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED,
  65                         notebook->GetId(),
  66                         nPage,
  67                         nOld);
  68   event.SetEventObject(notebook);
  69   notebook->ProcessEvent(event);
  70 }
  71
  72 static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxWindow *win )
  73 {
  74   if ((win->m_x == alloc->x) &&
  75       (win->m_y == alloc->y) &&
  76       (win->m_width == alloc->width) &&
  77       (win->m_height == alloc->height))
  78   {
  79     return;
  80   };
  81
  82 /*
  83   printf( "OnResize from " );
  84   if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
  85     printf( win->GetClassInfo()->GetClassName() );
  86   printf( " .\n" );
  87
  88   printf( "  Old: X: %d  Y: %d ", win->m_x, win->m_y );
  89   printf( "  W: %d  H: %d ", win->m_width, win->m_height );
  90   printf( " .\n" );
  91
  92   printf( "  New: X: %d  Y: %d ", alloc->x, alloc->y );
  93   printf( "  W: %d  H: %d ", alloc->width, alloc->height );
  94   printf( " .\n" );
  95 */
  96
  97   win->SetSize( alloc->x, alloc->y, alloc->width, alloc->height );
  98
  99 /*
 100   printf( "  Res: X: %d  Y: %d ", win->m_x, win->m_y );
 101   printf( "  W: %d  H: %d ", win->m_width, win->m_height );
 102   printf( " .\n" );
 103 */
 104 };
 105
 106 //-----------------------------------------------------------------------------
 107 // wxNotebook
 108 //-----------------------------------------------------------------------------
 109
 110 BEGIN_EVENT_TABLE(wxNotebook, wxControl)
 111   EVT_SIZE(wxNotebook::OnSize)
 112 END_EVENT_TABLE()
 113
 114 IMPLEMENT_DYNAMIC_CLASS(wxNotebook,wxControl)
 115
 116 void wxNotebook::Init()
 117 {
 118   m_imageList = NULL;
 119   m_pages.DeleteContents( TRUE );
 120   m_idHandler = 0;
 121 }
 122
 123 wxNotebook::wxNotebook()
 124 {
 125   Init();
 126 };
 127
 128 wxNotebook::wxNotebook( wxWindow *parent, wxWindowID id,
 129       const wxPoint& pos, const wxSize& size,
 130       long style, const wxString& name )
 131 {
 132   Init();
 133   Create( parent, id, pos, size, style, name );
 134 };
 135
 136 wxNotebook::~wxNotebook()
 137 {
 138   // don't generate change page events any more
 139   if ( m_idHandler != 0 )
 140     gtk_signal_disconnect(GTK_OBJECT(m_widget), m_idHandler);
 141
 142   if (m_imageList)
 143     delete m_imageList;
 144   DeleteAllPages();
 145 };
 146
 147 bool wxNotebook::Create(wxWindow *parent, wxWindowID id,
 148       const wxPoint& pos, const wxSize& size,
 149       long style, const wxString& name )
 150 {
 151   m_needParent = TRUE;
 152
 153   PreCreation( parent, id, pos, size, style, name );
 154
 155   m_widget = gtk_notebook_new();
 156   m_idHandler = gtk_signal_connect
 157                 (
 158                   GTK_OBJECT(m_widget), "switch_page",
 159                   GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback),
 160                   (gpointer)this
 161                 );
 162
 163   PostCreation();
 164
 165   Show( TRUE );
 166
 167   return TRUE;
 168 };
 169
 170 int wxNotebook::GetSelection() const
 171 {
 172   if (m_pages.Number() == 0)
 173     return -1;
 174
 175   GtkNotebookPage *g_page = GTK_NOTEBOOK(m_widget)->cur_page;
 176
 177   wxNotebookPage *page = NULL;
 178
 179   wxNode *node = m_pages.First();
 180   while (node)
 181   {
 182     page = (wxNotebookPage*)node->Data();
 183     if (page->m_page == g_page)
 184       break;
 185     node = node->Next();
 186   };
 187
 188   wxCHECK_MSG( node != NULL, -1, "wxNotebook: no selection?");
 189
 190   return page->m_id;
 191 };
 192
 193 int wxNotebook::GetPageCount() const
 194 {
 195   return m_pages.Number();
 196 };
 197
 198 int wxNotebook::GetRowCount() const
 199 {
 200   return 1;
 201 };
 202
 203 wxString wxNotebook::GetPageText( int page ) const
 204 {
 205   wxNotebookPage* nb_page = GetNotebookPage(page);
 206   if (nb_page)
 207     return nb_page->m_text;
 208   else
 209     return "";
 210 };
 211
 212 int wxNotebook::GetPageImage( int page ) const
 213 {
 214   wxNotebookPage* nb_page = GetNotebookPage(page);
 215   if (nb_page)
 216     return nb_page->m_image;
 217   else
 218     return 0;
 219 };
 220
 221 wxNotebookPage* wxNotebook::GetNotebookPage(int page) const
 222 {
 223   wxNotebookPage *nb_page = NULL;
 224
 225   wxNode *node = m_pages.First();
 226   while (node)
 227   {
 228     nb_page = (wxNotebookPage*)node->Data();
 229     if (nb_page->m_id == page)
 230       return nb_page;
 231     node = node->Next();
 232   };
 233
 234   wxLogDebug( "Notebook page %d not found!", page );
 235
 236   return NULL;
 237 };
 238
 239 int wxNotebook::SetSelection( int page )
 240 {
 241   int selOld = GetSelection();
 242   wxNotebookPage* nb_page = GetNotebookPage(page);
 243   if (!nb_page)
 244     return -1;
 245
 246   int page_num = 0;
 247   GList *child = GTK_NOTEBOOK(m_widget)->children;
 248   while (child)
 249   {
 250     if (nb_page->m_page == (GtkNotebookPage*)child->data)
 251       break;
 252     page_num++;
 253     child = child->next;
 254   };
 255
 256   if (!child) return -1;
 257
 258   gtk_notebook_set_page( GTK_NOTEBOOK(m_widget), page_num );
 259
 260   return selOld;
 261 };
 262
 263 void wxNotebook::AdvanceSelection(bool bForward)
 264 {
 265   int nSel = GetSelection(),
 266       nMax = GetPageCount();
 267
 268   if ( bForward ) {
 269     SetSelection(nSel == nMax ? 0 : nSel + 1);
 270   }
 271   else {
 272     SetSelection(nSel == 0 ? nMax : nSel - 1);
 273   }
 274 }
 275
 276 void wxNotebook::SetImageList( wxImageList* imageList )
 277 {
 278   m_imageList = imageList;
 279 };
 280
 281 bool wxNotebook::SetPageText( int page, const wxString &text )
 282 {
 283   wxNotebookPage* nb_page = GetNotebookPage(page);
 284   if (!nb_page)
 285     return FALSE;
 286
 287   nb_page->m_text = text;
 288
 289   return TRUE;
 290 };
 291
 292 bool wxNotebook::SetPageImage( int page, int image )
 293 {
 294   wxNotebookPage* nb_page = GetNotebookPage(page);
 295   if (!nb_page)
 296     return FALSE;
 297
 298   nb_page->m_image = image;
 299
 300   return TRUE;
 301 };
 302
 303 void wxNotebook::SetPageSize( const wxSize &WXUNUSED(size) )
 304 {
 305   wxFAIL_MSG("wxNotebook::SetPageSize not implemented");
 306 };
 307
 308 void wxNotebook::SetPadding( const wxSize &WXUNUSED(padding) )
 309 {
 310   wxFAIL_MSG("wxNotebook::SetPadding not implemented");
 311 };
 312
 313 bool wxNotebook::DeleteAllPages()
 314 {
 315   wxNode *page_node = m_pages.First();
 316   while (page_node)
 317   {
 318     wxNotebookPage *page = (wxNotebookPage*)page_node->Data();
 319
 320     DeletePage( page->m_id );
 321
 322     page_node = m_pages.First();
 323   };
 324
 325   return TRUE;
 326 };
 327
 328 bool wxNotebook::DeletePage( int page )
 329 {
 330   wxNotebookPage* nb_page = GetNotebookPage(page);
 331   if (!nb_page) return FALSE;
 332
 333   int page_num = 0;
 334   GList *child = GTK_NOTEBOOK(m_widget)->children;
 335   while (child)
 336   {
 337     if (nb_page->m_page == (GtkNotebookPage*)child->data) break;
 338     page_num++;
 339     child = child->next;
 340   };
 341
 342   wxASSERT( child );
 343
 344   delete nb_page->m_client;
 345
 346 //  Amazingly, this is not necessary
 347 //  gtk_notebook_remove_page( GTK_NOTEBOOK(m_widget), page_num );
 348
 349   m_pages.DeleteObject( nb_page );
 350
 351   return TRUE;
 352 };
 353
 354 bool wxNotebook::AddPage(wxWindow* win, const wxString& text,
 355                          bool bSelect, int imageId)
 356 {
 357   // we've created the notebook page in AddChild(). Now we just have to set
 358   // the caption for the page and set the others parameters.
 359
 360   // first, find the page
 361   wxNotebookPage *page = NULL;
 362
 363   wxNode *node = m_pages.First();
 364   while (node)
 365   {
 366     page = (wxNotebookPage*)node->Data();
 367     if ( page->m_client == win )
 368       break; // found
 369     node = node->Next();
 370   };
 371
 372   wxCHECK_MSG(page != NULL, FALSE,
 373               "Can't add a page whose parent is not the notebook!");
 374
 375   // then set the attributes
 376   page->m_text = text;
 377   if ( page->m_text.IsEmpty() )
 378     page->m_text = "";
 379   page->m_image = imageId;
 380   gtk_label_set(page->m_label, page->m_text);
 381
 382   if ( bSelect ) {
 383     SetSelection(GetPageCount());
 384   }
 385
 386   return TRUE;
 387 };
 388
 389 wxWindow *wxNotebook::GetPage( int page ) const
 390 {
 391   wxNotebookPage* nb_page = GetNotebookPage(page);
 392   if (!nb_page)
 393     return NULL;
 394   else
 395     return nb_page->m_client;
 396 };
 397
 398 void wxNotebook::AddChild( wxWindow *win )
 399 {
 400   // @@@ normally done in wxWindow::AddChild but for some reason wxNotebook
 401   // case is special there (Robert?)
 402   // Robert: Don't you think the code below looks different from the one
 403   // in wxWindow::AddChild :-)
 404
 405   m_children.Append(win);
 406
 407   wxNotebookPage *page = new wxNotebookPage();
 408
 409   page->m_id = GetPageCount();
 410   page->m_label = (GtkLabel *)gtk_label_new("Handle");
 411   page->m_client = win;
 412   gtk_notebook_append_page( GTK_NOTEBOOK(m_widget), win->m_widget,
 413                             (GtkWidget *)page->m_label);
 414   gtk_misc_set_alignment(GTK_MISC(page->m_label), 0.0, 0.5);
 415
 416   page->m_page =
 417     (GtkNotebookPage*) (g_list_last(GTK_NOTEBOOK(m_widget)->children)->data);
 418
 419   page->m_parent = GTK_NOTEBOOK(m_widget);
 420
 421   gtk_signal_connect( GTK_OBJECT(win->m_widget), "size_allocate",
 422     GTK_SIGNAL_FUNC(gtk_page_size_callback), (gpointer)win );
 423
 424   if (!page->m_page)
 425   {
 426      wxLogFatalError( "Notebook page creation error" );
 427      return;
 428   }
 429
 430   m_pages.Append( page );
 431 };
 432
 433 void wxNotebook::OnSize(wxSizeEvent& event)
 434 {
 435   // forward this event to all pages
 436   wxNode *node = m_pages.First();
 437   while (node)
 438   {
 439     wxWindow *page = ((wxNotebookPage*)node->Data())->m_client;
 440     // @@@@ the numbers I substract here are completely arbitrary, instead we
 441     // should somehow calculate the size of the page from the size of the
 442     // notebook
 443 /*    page->SetSize(event.GetSize().GetX() - 5,
 444                                  event.GetSize().GetY() - 30);
 445
 446     if ( page->GetAutoLayout() )
 447       page->Layout();
 448 */
 449     node = node->Next();
 450   };
 451 }
 452
 453 // override these 2 functions to do nothing: everything is done in OnSize
 454 void wxNotebook::SetConstraintSizes(bool /* recurse */)
 455 {
 456   // don't set the sizes of the pages - their correct size is not yet known
 457   wxControl::SetConstraintSizes(FALSE);
 458 }
 459
 460 bool wxNotebook::DoPhase(int /* nPhase */)
 461 {
 462   return TRUE;
 463 }
 464
 465 //-----------------------------------------------------------------------------
 466 // wxNotebookEvent
 467 //-----------------------------------------------------------------------------
 468
 469 IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxCommandEvent)