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