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