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->GetAutoLayout() )
  75     win->Layout();
  76
  77   if ((win->m_x == alloc->x) &&
  78       (win->m_y == alloc->y) &&
  79       (win->m_width == alloc->width) &&
  80       (win->m_height == alloc->height))
  81   {
  82     return;
  83   }
  84
  85 /*
  86   printf( "OnResize from " );
  87   if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
  88     printf( win->GetClassInfo()->GetClassName() );
  89   printf( " .\n" );
  90
  91   printf( "  Old: X: %d  Y: %d ", win->m_x, win->m_y );
  92   printf( "  W: %d  H: %d ", win->m_width, win->m_height );
  93   printf( " .\n" );
  94
  95   printf( "  New: X: %d  Y: %d ", alloc->x, alloc->y );
  96   printf( "  W: %d  H: %d ", alloc->width, alloc->height );
  97   printf( " .\n" );
  98 */
  99
 100   win->SetSize( alloc->x, alloc->y, alloc->width, alloc->height );
 101
 102 /*
 103   printf( "  Res: X: %d  Y: %d ", win->m_x, win->m_y );
 104   printf( "  W: %d  H: %d ", win->m_width, win->m_height );
 105   printf( " .\n" );
 106 */
 107 }
 108
 109 //-----------------------------------------------------------------------------
 110 // wxNotebook
 111 //-----------------------------------------------------------------------------
 112
 113 IMPLEMENT_DYNAMIC_CLASS(wxNotebook,wxControl)
 114
 115 void wxNotebook::Init()
 116 {
 117   m_imageList = NULL;
 118   m_pages.DeleteContents( TRUE );
 119   m_idHandler = 0;
 120 }
 121
 122 wxNotebook::wxNotebook()
 123 {
 124   Init();
 125 }
 126
 127 wxNotebook::wxNotebook( wxWindow *parent, wxWindowID id,
 128       const wxPoint& pos, const wxSize& size,
 129       long style, const wxString& name )
 130 {
 131   Init();
 132   Create( parent, id, pos, size, style, name );
 133 }
 134
 135 wxNotebook::~wxNotebook()
 136 {
 137   // don't generate change page events any more
 138   if ( m_idHandler != 0 )
 139     gtk_signal_disconnect(GTK_OBJECT(m_widget), m_idHandler);
 140
 141   DeleteAllPages();
 142 }
 143
 144 bool wxNotebook::Create(wxWindow *parent, wxWindowID id,
 145       const wxPoint& pos, const wxSize& size,
 146       long style, const wxString& name )
 147 {
 148   m_needParent = TRUE;
 149
 150   PreCreation( parent, id, pos, size, style, name );
 151
 152   m_widget = gtk_notebook_new();
 153
 154   gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 155
 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   m_children.Append(win);
 401
 402   wxNotebookPage *page = new wxNotebookPage();
 403
 404   page->m_id = GetPageCount();
 405   page->m_label = (GtkLabel *)gtk_label_new(_("Handle"));
 406   page->m_client = win;
 407   gtk_notebook_append_page( GTK_NOTEBOOK(m_widget), win->m_widget,
 408                             (GtkWidget *)page->m_label);
 409   gtk_misc_set_alignment(GTK_MISC(page->m_label), 0.0, 0.5);
 410
 411   page->m_page =
 412     (GtkNotebookPage*) (g_list_last(GTK_NOTEBOOK(m_widget)->children)->data);
 413
 414   page->m_parent = GTK_NOTEBOOK(m_widget);
 415
 416   gtk_signal_connect( GTK_OBJECT(win->m_widget), "size_allocate",
 417     GTK_SIGNAL_FUNC(gtk_page_size_callback), (gpointer)win );
 418
 419   if (!page->m_page)
 420   {
 421      wxLogFatalError( _("Notebook page creation error") );
 422      return;
 423   }
 424
 425   m_pages.Append( page );
 426 }
 427
 428 // override these 2 functions to do nothing: everything is done in OnSize
 429 void wxNotebook::SetConstraintSizes( bool WXUNUSED(recurse) )
 430 {
 431   // don't set the sizes of the pages - their correct size is not yet known
 432   wxControl::SetConstraintSizes(FALSE);
 433 }
 434
 435 bool wxNotebook::DoPhase( int WXUNUSED(nPhase) )
 436 {
 437   return TRUE;
 438 }
 439
 440 //-----------------------------------------------------------------------------
 441 // wxNotebookEvent
 442 //-----------------------------------------------------------------------------
 443
 444 IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxCommandEvent)