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 = (GtkNotebookPage *) NULL;
  35     m_client = (wxWindow *) NULL;
  36     m_parent = (GtkNotebook *) NULL;
  37     m_box = (GtkWidget *) NULL;
  38   }
  39
  40 //private:
  41   int                m_id;
  42   wxString           m_text;
  43   int                m_image;
  44   GtkNotebookPage   *m_page;
  45   GtkLabel          *m_label;
  46   wxWindow          *m_client;
  47   GtkNotebook       *m_parent;
  48   GtkWidget         *m_box;     // in which the label and image are packed
  49 };
  50
  51 //-----------------------------------------------------------------------------
  52 // "switch_page"
  53 //-----------------------------------------------------------------------------
  54
  55 static void gtk_notebook_page_change_callback(GtkNotebook *WXUNUSED(widget),
  56                                               GtkNotebookPage *WXUNUSED(page),
  57                                               gint nPage,
  58                                               gpointer data)
  59 {
  60   wxNotebook *notebook = (wxNotebook *)data;
  61
  62   int old = notebook->GetSelection();
  63
  64   // TODO: emulate PAGE_CHANGING event
  65
  66   wxNotebookEvent event( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED,
  67                          notebook->GetId(),  nPage, old );
  68   event.SetEventObject( notebook );
  69   notebook->GetEventHandler()->ProcessEvent( event );
  70 }
  71
  72 //-----------------------------------------------------------------------------
  73 // "size_allocate"
  74 //-----------------------------------------------------------------------------
  75
  76 static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxWindow *win )
  77 {
  78   if (win->GetAutoLayout()) win->Layout();
  79
  80   if ((win->m_x == alloc->x) &&
  81       (win->m_y == alloc->y) &&
  82       (win->m_width == alloc->width) &&
  83       (win->m_height == alloc->height))
  84   {
  85     return;
  86   }
  87
  88   win->SetSize( alloc->x, alloc->y, alloc->width, alloc->height );
  89 }
  90
  91 //-----------------------------------------------------------------------------
  92 // wxNotebook
  93 //-----------------------------------------------------------------------------
  94
  95 IMPLEMENT_DYNAMIC_CLASS(wxNotebook,wxControl)
  96
  97 void wxNotebook::Init()
  98 {
  99   m_imageList = (wxImageList *) NULL;
 100   m_pages.DeleteContents( TRUE );
 101   m_idHandler = 0;
 102 }
 103
 104 wxNotebook::wxNotebook()
 105 {
 106   Init();
 107 }
 108
 109 wxNotebook::wxNotebook( wxWindow *parent, wxWindowID id,
 110       const wxPoint& pos, const wxSize& size,
 111       long style, const wxString& name )
 112 {
 113   Init();
 114   Create( parent, id, pos, size, style, name );
 115 }
 116
 117 wxNotebook::~wxNotebook()
 118 {
 119   // don't generate change page events any more
 120   if (m_idHandler != 0)
 121     gtk_signal_disconnect(GTK_OBJECT(m_widget), m_idHandler);
 122
 123   DeleteAllPages();
 124 }
 125
 126 bool wxNotebook::Create(wxWindow *parent, wxWindowID id,
 127       const wxPoint& pos, const wxSize& size,
 128       long style, const wxString& name )
 129 {
 130   m_needParent = TRUE;
 131
 132   PreCreation( parent, id, pos, size, style, name );
 133
 134   m_widget = gtk_notebook_new();
 135
 136   gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 137
 138   m_idHandler = gtk_signal_connect
 139                 (
 140                   GTK_OBJECT(m_widget), "switch_page",
 141                   GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback),
 142                   (gpointer)this
 143                 );
 144
 145   PostCreation();
 146
 147   Show( TRUE );
 148
 149   return TRUE;
 150 }
 151
 152 int wxNotebook::GetSelection() const
 153 {
 154   if (m_pages.Number() == 0) return -1;
 155
 156   GtkNotebookPage *g_page = GTK_NOTEBOOK(m_widget)->cur_page;
 157
 158   wxNotebookPage *page = (wxNotebookPage *) NULL;
 159
 160   wxNode *node = m_pages.First();
 161   while (node)
 162   {
 163     page = (wxNotebookPage*)node->Data();
 164     if (page->m_page == g_page)
 165       break;
 166     node = node->Next();
 167   }
 168
 169   wxCHECK_MSG( node != NULL, -1, "wxNotebook: no selection?" );
 170
 171   return page->m_id;
 172 }
 173
 174 int wxNotebook::GetPageCount() const
 175 {
 176   return m_pages.Number();
 177 }
 178
 179 int wxNotebook::GetRowCount() const
 180 {
 181   return 1;
 182 }
 183
 184 wxString wxNotebook::GetPageText( int page ) const
 185 {
 186   wxNotebookPage* nb_page = GetNotebookPage(page);
 187   if (nb_page)
 188     return nb_page->m_text;
 189   else
 190     return "";
 191 }
 192
 193 int wxNotebook::GetPageImage( int page ) const
 194 {
 195   wxNotebookPage* nb_page = GetNotebookPage(page);
 196   if (nb_page)
 197     return nb_page->m_image;
 198   else
 199     return 0;
 200 }
 201
 202 wxNotebookPage* wxNotebook::GetNotebookPage(int page) const
 203 {
 204   wxNotebookPage *nb_page = (wxNotebookPage *) NULL;
 205
 206   wxNode *node = m_pages.First();
 207   while (node)
 208   {
 209     nb_page = (wxNotebookPage*)node->Data();
 210     if (nb_page->m_id == page)
 211       return nb_page;
 212     node = node->Next();
 213   }
 214
 215   wxLogDebug( "Notebook page %d not found!", page );
 216
 217   return (wxNotebookPage *) NULL;
 218 }
 219
 220 int wxNotebook::SetSelection( int page )
 221 {
 222   int selOld = GetSelection();
 223   wxNotebookPage* nb_page = GetNotebookPage(page);
 224
 225   if (!nb_page) return -1;
 226
 227   int page_num = 0;
 228   GList *child = GTK_NOTEBOOK(m_widget)->children;
 229   while (child)
 230   {
 231     if (nb_page->m_page == (GtkNotebookPage*)child->data)  break;
 232     page_num++;
 233     child = child->next;
 234   }
 235
 236   if (!child) return -1;
 237
 238   gtk_notebook_set_page( GTK_NOTEBOOK(m_widget), page_num );
 239
 240   return selOld;
 241 }
 242
 243 void wxNotebook::AdvanceSelection( bool bForward )
 244 {
 245   int sel = GetSelection();
 246   int max = GetPageCount();
 247
 248   if (bForward)
 249     SetSelection( sel == max ? 0 : sel + 1 );
 250   else
 251     SetSelection( sel == 0 ? max : sel - 1 );
 252 }
 253
 254 void wxNotebook::SetImageList( wxImageList* imageList )
 255 {
 256   m_imageList = imageList;
 257 }
 258
 259 bool wxNotebook::SetPageText( int page, const wxString &text )
 260 {
 261   wxNotebookPage* nb_page = GetNotebookPage(page);
 262
 263   if (!nb_page) return FALSE;
 264
 265   nb_page->m_text = text;
 266
 267   return TRUE;
 268 }
 269
 270 bool wxNotebook::SetPageImage( int page, int image )
 271 {
 272   wxNotebookPage* nb_page = GetNotebookPage(page);
 273
 274   if (!nb_page) return FALSE;
 275
 276   nb_page->m_image = image;
 277
 278   return TRUE;
 279 }
 280
 281 void wxNotebook::SetPageSize( const wxSize &WXUNUSED(size) )
 282 {
 283   wxFAIL_MSG( "wxNotebook::SetPageSize not implemented" );
 284 }
 285
 286 void wxNotebook::SetPadding( const wxSize &WXUNUSED(padding) )
 287 {
 288   wxFAIL_MSG( "wxNotebook::SetPadding not implemented" );
 289 }
 290
 291 bool wxNotebook::DeleteAllPages()
 292 {
 293   wxNode *page_node = m_pages.First();
 294   while (page_node)
 295   {
 296     wxNotebookPage *page = (wxNotebookPage*)page_node->Data();
 297
 298     DeletePage( page->m_id );
 299
 300     page_node = m_pages.First();
 301   }
 302
 303   return TRUE;
 304 }
 305
 306 bool wxNotebook::DeletePage( int page )
 307 {
 308   wxNotebookPage* nb_page = GetNotebookPage(page);
 309   if (!nb_page) return FALSE;
 310
 311   int page_num = 0;
 312   GList *child = GTK_NOTEBOOK(m_widget)->children;
 313   while (child)
 314   {
 315     if (nb_page->m_page == (GtkNotebookPage*)child->data) break;
 316     page_num++;
 317     child = child->next;
 318   }
 319
 320   wxASSERT( child );
 321
 322   delete nb_page->m_client;
 323
 324 //  Amazingly, this is not necessary
 325 //  gtk_notebook_remove_page( GTK_NOTEBOOK(m_widget), page_num );
 326
 327   m_pages.DeleteObject( nb_page );
 328
 329   return TRUE;
 330 }
 331
 332 bool wxNotebook::AddPage(wxWindow* win, const wxString& text,
 333                          bool bSelect, int imageId)
 334 {
 335   // we've created the notebook page in AddChild(). Now we just have to set
 336   // the caption for the page and set the others parameters.
 337
 338   wxNotebookPage *page = (wxNotebookPage *) NULL;
 339
 340   wxNode *node = m_pages.First();
 341   while (node)
 342   {
 343     page = (wxNotebookPage*)node->Data();
 344     if ( page->m_client == win ) break;
 345     node = node->Next();
 346   }
 347
 348   wxCHECK_MSG( page != NULL, FALSE, "Can't add a page whose parent is not the notebook!" );
 349
 350   if (imageId != -1)
 351   {
 352     wxASSERT( m_imageList != NULL );
 353
 354     wxBitmap *bmp = m_imageList->GetBitmap(imageId);
 355     GdkPixmap *pixmap = bmp->GetPixmap();
 356     GdkBitmap *mask = (GdkBitmap*) NULL;
 357     if (bmp->GetMask()) mask = bmp->GetMask()->GetBitmap();
 358     GtkWidget *pixmapwid = gtk_pixmap_new (pixmap, mask );
 359
 360     gtk_box_pack_start(GTK_BOX(page->m_box), pixmapwid, FALSE, FALSE, 3);
 361
 362     gtk_widget_show(pixmapwid);
 363   }
 364
 365   // then set the attributes
 366   page->m_text = text;
 367   if (page->m_text.IsEmpty()) page->m_text = "";
 368   page->m_image = imageId;
 369   page->m_label = (GtkLabel *)gtk_label_new(page->m_text);
 370   gtk_box_pack_start( GTK_BOX(page->m_box), (GtkWidget *)page->m_label, FALSE, FALSE, 3);
 371
 372   // @@@: what does this do? do we still need it?
 373   // gtk_misc_set_alignment(GTK_MISC(page->m_label), 0.0, 0.5);
 374
 375   gtk_widget_show((GtkWidget *)page->m_label);
 376
 377   if (bSelect) SetSelection(GetPageCount());
 378
 379   return TRUE;
 380 }
 381
 382 wxWindow *wxNotebook::GetPage( int page ) const
 383 {
 384   wxNotebookPage* nb_page = GetNotebookPage(page);
 385   if (!nb_page)
 386     return (wxWindow *) NULL;
 387   else
 388     return nb_page->m_client;
 389 }
 390
 391 void wxNotebook::AddChild( wxWindow *win )
 392 {
 393   m_children.Append(win);
 394
 395   wxNotebookPage *page = new wxNotebookPage();
 396
 397   page->m_id = GetPageCount();
 398
 399   page->m_box = gtk_hbox_new (FALSE, 0);
 400   gtk_container_border_width(GTK_CONTAINER(page->m_box), 2);
 401
 402   page->m_client = win;
 403   gtk_notebook_append_page( GTK_NOTEBOOK(m_widget), win->m_widget, page->m_box );
 404
 405   page->m_page =
 406     (GtkNotebookPage*) (g_list_last(GTK_NOTEBOOK(m_widget)->children)->data);
 407
 408   page->m_parent = GTK_NOTEBOOK(m_widget);
 409
 410   gtk_signal_connect( GTK_OBJECT(win->m_widget), "size_allocate",
 411     GTK_SIGNAL_FUNC(gtk_page_size_callback), (gpointer)win );
 412
 413   if (!page->m_page)
 414   {
 415      wxLogFatalError( "Notebook page creation error" );
 416      return;
 417   }
 418
 419   m_pages.Append( page );
 420 }
 421
 422 // override these 2 functions to do nothing: everything is done in OnSize
 423 void wxNotebook::SetConstraintSizes( bool WXUNUSED(recurse) )
 424 {
 425   // don't set the sizes of the pages - their correct size is not yet known
 426   wxControl::SetConstraintSizes(FALSE);
 427 }
 428
 429 bool wxNotebook::DoPhase( int WXUNUSED(nPhase) )
 430 {
 431   return TRUE;
 432 }
 433
 434 //-----------------------------------------------------------------------------
 435 // wxNotebookEvent
 436 //-----------------------------------------------------------------------------
 437
 438 IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxCommandEvent)
 439