src/gtk/notebook.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/notebook.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling, Vadim Zeitlin
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #if wxUSE_NOTEBOOK
  14
  15 #include "wx/notebook.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/intl.h"
  19     #include "wx/log.h"
  20     #include "wx/utils.h"
  21     #include "wx/msgdlg.h"
  22     #include "wx/bitmap.h"
  23 #endif
  24
  25 #include "wx/imaglist.h"
  26 #include "wx/fontutil.h"
  27
  28 #include "wx/gtk/private.h"
  29 #include "wx/gtk/win_gtk.h"
  30
  31 #include <gdk/gdkkeysyms.h>
  32
  33 // ----------------------------------------------------------------------------
  34 // events
  35 // ----------------------------------------------------------------------------
  36
  37 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED)
  38 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING)
  39
  40 //-----------------------------------------------------------------------------
  41 // data
  42 //-----------------------------------------------------------------------------
  43
  44 extern bool g_blockEventsOnDrag;
  45
  46 //-----------------------------------------------------------------------------
  47 // wxGtkNotebookPage
  48 //-----------------------------------------------------------------------------
  49
  50 // VZ: this is rather ugly as we keep the pages themselves in an array (it
  51 //     allows us to have quite a few functions implemented in the base class)
  52 //     but the page data is kept in a separate list, so we must maintain them
  53 //     in sync manually... of course, the list had been there before the base
  54 //     class which explains it but it still would be nice to do something
  55 //     about this one day
  56
  57 class wxGtkNotebookPage: public wxObject
  58 {
  59 public:
  60     wxGtkNotebookPage()
  61     {
  62         m_image = -1;
  63         m_page = (GtkNotebookPage *) NULL;
  64         m_box = (GtkWidget *) NULL;
  65     }
  66
  67     wxString           m_text;
  68     int                m_image;
  69     GtkNotebookPage   *m_page;
  70     GtkLabel          *m_label;
  71     GtkWidget         *m_box;     // in which the label and image are packed
  72 };
  73
  74
  75 #include "wx/listimpl.cpp"
  76 WX_DEFINE_LIST(wxGtkNotebookPagesList)
  77
  78
  79 //-----------------------------------------------------------------------------
  80 // "switch_page"
  81 //-----------------------------------------------------------------------------
  82
  83 extern "C" {
  84 static void gtk_notebook_page_change_callback(GtkNotebook *WXUNUSED(widget),
  85                                               GtkNotebookPage *WXUNUSED(gpage),
  86                                               guint page,
  87                                               wxNotebook *notebook )
  88 {
  89     // are you trying to call SetSelection() from a notebook event handler?
  90     // you shouldn't!
  91     wxCHECK_RET( !notebook->m_inSwitchPage,
  92                  _T("gtk_notebook_page_change_callback reentered") );
  93
  94     notebook->m_inSwitchPage = true;
  95     if (g_isIdle)
  96         wxapp_install_idle_handler();
  97
  98     int old = notebook->GetSelection();
  99
 100
 101     if (notebook->m_skipNextPageChangeEvent)
 102     {
 103         // this event was programatically generated by ChangeSelection() and thus must
 104         // be skipped
 105         notebook->m_skipNextPageChangeEvent = false;
 106
 107         // make wxNotebook::GetSelection() return the correct (i.e. consistent
 108         // with wxNotebookEvent::GetSelection()) value even though the page is
 109         // not really changed in GTK+
 110         notebook->m_selection = page;
 111     }
 112     else
 113     {
 114         if ( !notebook->SendPageChangingEvent(page) )
 115         {
 116             // program doesn't allow the page change
 117             g_signal_stop_emission_by_name(notebook->m_widget, "switch_page");
 118         }
 119         else // change allowed
 120         {
 121             // make wxNotebook::GetSelection() return the correct (i.e. consistent
 122             // with wxNotebookEvent::GetSelection()) value even though the page is
 123             // not really changed in GTK+
 124             notebook->m_selection = page;
 125
 126             notebook->SendPageChangedEvent(old);
 127         }
 128     }
 129
 130     notebook->m_inSwitchPage = false;
 131 }
 132 }
 133
 134 //-----------------------------------------------------------------------------
 135 // "size_allocate"
 136 //-----------------------------------------------------------------------------
 137
 138 extern "C" {
 139 static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxWindow *win )
 140 {
 141     if (g_isIdle)
 142         wxapp_install_idle_handler();
 143
 144     if ((win->m_x == alloc->x) &&
 145         (win->m_y == alloc->y) &&
 146         (win->m_width == alloc->width) &&
 147         (win->m_height == alloc->height))
 148     {
 149         return;
 150     }
 151
 152     win->SetSize( alloc->x, alloc->y, alloc->width, alloc->height );
 153
 154     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call allocate
 155        here in order to make repositioning after resizing to take effect. */
 156     if ((gtk_major_version == 1) &&
 157         (gtk_minor_version == 2) &&
 158         (gtk_micro_version < 6) &&
 159         (win->m_wxwindow) &&
 160         (GTK_WIDGET_REALIZED(win->m_wxwindow)))
 161     {
 162         gtk_widget_size_allocate( win->m_wxwindow, alloc );
 163     }
 164 }
 165 }
 166
 167 //-----------------------------------------------------------------------------
 168 // "realize" from m_widget
 169 //-----------------------------------------------------------------------------
 170
 171 extern "C" {
 172 static void
 173 gtk_notebook_realized_callback( GtkWidget * WXUNUSED(widget), wxWindow *win )
 174 {
 175     if (g_isIdle)
 176         wxapp_install_idle_handler();
 177
 178     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call a queue_resize
 179        here in order to make repositioning before showing to take effect. */
 180     gtk_widget_queue_resize( win->m_widget );
 181 }
 182 }
 183
 184 //-----------------------------------------------------------------------------
 185 // "key_press_event"
 186 //-----------------------------------------------------------------------------
 187
 188 extern "C" {
 189 static gboolean
 190 gtk_notebook_key_press_callback( GtkWidget   *widget,
 191                                  GdkEventKey *gdk_event,
 192                                  wxNotebook  *notebook )
 193 {
 194     // don't need to install idle handler, its done from "event" signal
 195
 196     if (!notebook->m_hasVMT) return FALSE;
 197     if (g_blockEventsOnDrag) return FALSE;
 198
 199     /* win is a control: tab can be propagated up */
 200     if ((gdk_event->keyval == GDK_Left) || (gdk_event->keyval == GDK_Right))
 201     {
 202         int page;
 203         int nMax = notebook->GetPageCount();
 204         if ( nMax-- ) // decrement it to get the last valid index
 205         {
 206             int nSel = notebook->GetSelection();
 207
 208             // change selection wrapping if it becomes invalid
 209             page = (gdk_event->keyval != GDK_Left) ? nSel == nMax ? 0
 210                                        : nSel + 1
 211                         : nSel == 0 ? nMax
 212                                     : nSel - 1;
 213         }
 214         else // notebook is empty, no next page
 215         {
 216             return FALSE;
 217         }
 218
 219         // m_selection = page;
 220         gtk_notebook_set_current_page( GTK_NOTEBOOK(widget), page );
 221
 222         return TRUE;
 223     }
 224
 225     /* win is a control: tab can be propagated up */
 226     if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
 227     {
 228         int sel = notebook->GetSelection();
 229         if (sel == -1)
 230             return TRUE;
 231         wxGtkNotebookPage *nb_page = notebook->GetNotebookPage(sel);
 232         wxCHECK_MSG( nb_page, FALSE, _T("invalid selection in wxNotebook") );
 233
 234         wxNavigationKeyEvent event;
 235         event.SetEventObject( notebook );
 236         /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 237         event.SetDirection( (gdk_event->keyval == GDK_Tab) );
 238         /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 239         event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) ||
 240                                (gdk_event->keyval == GDK_Left) || (gdk_event->keyval == GDK_Right) );
 241         event.SetCurrentFocus( notebook );
 242
 243         wxNotebookPage *client = notebook->GetPage(sel);
 244         if ( !client->GetEventHandler()->ProcessEvent( event ) )
 245         {
 246              client->SetFocus();
 247         }
 248
 249         return TRUE;
 250     }
 251
 252     return FALSE;
 253 }
 254 }
 255
 256 //-----------------------------------------------------------------------------
 257 // InsertChild callback for wxNotebook
 258 //-----------------------------------------------------------------------------
 259
 260 static void wxInsertChildInNotebook( wxNotebook* parent, wxWindow* child )
 261 {
 262     // Hack Alert! (Part I): This sets the notebook as the parent of the child
 263     // widget, and takes care of some details such as updating the state and
 264     // style of the child to reflect its new location.  We do this early
 265     // because without it GetBestSize (which is used to set the initial size
 266     // of controls if an explicit size is not given) will often report
 267     // incorrect sizes since the widget's style context is not fully known.
 268     // See bug #901694 for details
 269     // (http://sourceforge.net/tracker/?func=detail&aid=901694&group_id=9863&atid=109863)
 270     gtk_widget_set_parent(child->m_widget, parent->m_widget);
 271
 272     // NOTE: This should be considered a temporary workaround until we can
 273     // work out the details and implement delaying the setting of the initial
 274     // size of widgets until the size is really needed.
 275 }
 276
 277 //-----------------------------------------------------------------------------
 278 // wxNotebook
 279 //-----------------------------------------------------------------------------
 280
 281 IMPLEMENT_DYNAMIC_CLASS(wxNotebook,wxControl)
 282
 283 BEGIN_EVENT_TABLE(wxNotebook, wxControl)
 284     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
 285 END_EVENT_TABLE()
 286
 287 void wxNotebook::Init()
 288 {
 289     m_padding = 0;
 290     m_inSwitchPage = false;
 291     m_skipNextPageChangeEvent = false;
 292
 293     m_imageList = (wxImageList *) NULL;
 294     m_selection = -1;
 295     m_themeEnabled = true;
 296 }
 297
 298 wxNotebook::wxNotebook()
 299 {
 300     Init();
 301 }
 302
 303 wxNotebook::wxNotebook( wxWindow *parent, wxWindowID id,
 304       const wxPoint& pos, const wxSize& size,
 305       long style, const wxString& name )
 306 {
 307     Init();
 308     Create( parent, id, pos, size, style, name );
 309 }
 310
 311 wxNotebook::~wxNotebook()
 312 {
 313     DeleteAllPages();
 314 }
 315
 316 bool wxNotebook::Create(wxWindow *parent, wxWindowID id,
 317                         const wxPoint& pos, const wxSize& size,
 318                         long style, const wxString& name )
 319 {
 320     m_needParent = true;
 321     m_acceptsFocus = true;
 322     m_insertCallback = (wxInsertChildFunction)wxInsertChildInNotebook;
 323
 324     if ( (style & wxBK_ALIGN_MASK) == wxBK_DEFAULT )
 325         style |= wxBK_TOP;
 326
 327     if (!PreCreation( parent, pos, size ) ||
 328         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 329     {
 330         wxFAIL_MSG( wxT("wxNoteBook creation failed") );
 331         return false;
 332     }
 333
 334
 335     m_widget = gtk_notebook_new();
 336
 337     gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 338
 339     g_signal_connect (m_widget, "switch_page",
 340                       G_CALLBACK (gtk_notebook_page_change_callback), this);
 341
 342     m_parent->DoAddChild( this );
 343
 344     if (m_windowStyle & wxBK_RIGHT)
 345         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_RIGHT );
 346     if (m_windowStyle & wxBK_LEFT)
 347         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_LEFT );
 348     if (m_windowStyle & wxBK_BOTTOM)
 349         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_BOTTOM );
 350
 351     g_signal_connect (m_widget, "key_press_event",
 352                       G_CALLBACK (gtk_notebook_key_press_callback), this);
 353
 354     PostCreation(size);
 355
 356     g_signal_connect (m_widget, "realize",
 357                       G_CALLBACK (gtk_notebook_realized_callback), this);
 358
 359     return true;
 360 }
 361
 362 int wxNotebook::GetSelection() const
 363 {
 364     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 365
 366     if ( m_selection == -1 )
 367     {
 368         GList *nb_pages = GTK_NOTEBOOK(m_widget)->children;
 369
 370         if (g_list_length(nb_pages) != 0)
 371         {
 372             GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 373
 374             gpointer cur = notebook->cur_page;
 375             if ( cur != NULL )
 376             {
 377                 wxConstCast(this, wxNotebook)->m_selection =
 378                     g_list_index( nb_pages, cur );
 379             }
 380         }
 381     }
 382
 383     return m_selection;
 384 }
 385
 386 wxString wxNotebook::GetPageText( size_t page ) const
 387 {
 388     wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid notebook") );
 389
 390     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 391     if (nb_page)
 392         return nb_page->m_text;
 393     else
 394         return wxEmptyString;
 395 }
 396
 397 int wxNotebook::GetPageImage( size_t page ) const
 398 {
 399     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 400
 401     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 402     if (nb_page)
 403         return nb_page->m_image;
 404     else
 405         return -1;
 406 }
 407
 408 wxGtkNotebookPage* wxNotebook::GetNotebookPage( int page ) const
 409 {
 410     wxCHECK_MSG( m_widget != NULL, (wxGtkNotebookPage*) NULL, wxT("invalid notebook") );
 411
 412     wxCHECK_MSG( page < (int)m_pagesData.GetCount(), (wxGtkNotebookPage*) NULL, wxT("invalid notebook index") );
 413
 414     return m_pagesData.Item(page)->GetData();
 415 }
 416
 417 int wxNotebook::DoSetSelection( size_t page, int flags )
 418 {
 419     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 420
 421     wxCHECK_MSG( page < m_pagesData.GetCount(), -1, wxT("invalid notebook index") );
 422
 423     int selOld = GetSelection();
 424
 425     if ( !(flags & SetSelection_SendEvent) )
 426         m_skipNextPageChangeEvent = true;
 427
 428     // cache the selection
 429     m_selection = page;
 430     gtk_notebook_set_current_page( GTK_NOTEBOOK(m_widget), page );
 431
 432 #ifdef __WXDEBUG__
 433     if ( !(flags & SetSelection_SendEvent) )
 434     {
 435         // gtk_notebook_set_current_page will emit the switch-page signal which will be
 436         // caught by our gtk_notebook_page_change_callback which should have reset the
 437         // flag to false:
 438         wxASSERT(!m_skipNextPageChangeEvent);
 439     }
 440 #endif // __WXDEBUG__
 441
 442     wxNotebookPage *client = GetPage(page);
 443     if ( client )
 444         client->SetFocus();
 445
 446     return selOld;
 447 }
 448
 449 bool wxNotebook::SetPageText( size_t page, const wxString &text )
 450 {
 451     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid notebook") );
 452
 453     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 454
 455     wxCHECK_MSG( nb_page, false, wxT("SetPageText: invalid page index") );
 456
 457     nb_page->m_text = text;
 458
 459     gtk_label_set_text( nb_page->m_label, wxGTK_CONV( nb_page->m_text ) );
 460
 461     return true;
 462 }
 463
 464 bool wxNotebook::SetPageImage( size_t page, int image )
 465 {
 466     /* HvdH 28-12-98: now it works, but it's a bit of a kludge */
 467
 468     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 469
 470     if (!nb_page) return false;
 471
 472     /* Optimization posibility: return immediately if image unchanged.
 473      * Not enabled because it may break existing (stupid) code that
 474      * manipulates the imagelist to cycle images */
 475
 476     /* if (image == nb_page->m_image) return true; */
 477
 478     /* For different cases:
 479        1) no image -> no image
 480        2) image -> no image
 481        3) no image -> image
 482        4) image -> image */
 483
 484     if (image == -1 && nb_page->m_image == -1)
 485         return true; /* Case 1): Nothing to do. */
 486
 487     GtkWidget *pixmapwid = (GtkWidget*) NULL;
 488
 489     if (nb_page->m_image != -1)
 490     {
 491         /* Case 2) or 4). There is already an image in the gtkhbox. Let's find it */
 492
 493         GList *child = gtk_container_get_children(GTK_CONTAINER(nb_page->m_box));
 494         while (child)
 495         {
 496             if (GTK_IS_IMAGE(child->data))
 497             {
 498                 pixmapwid = GTK_WIDGET(child->data);
 499                 break;
 500             }
 501             child = child->next;
 502         }
 503
 504         /* We should have the pixmap widget now */
 505         wxASSERT(pixmapwid != NULL);
 506
 507         if (image == -1)
 508         {
 509             /* If there's no new widget, just remove the old from the box */
 510             gtk_container_remove(GTK_CONTAINER(nb_page->m_box), pixmapwid);
 511             nb_page->m_image = -1;
 512
 513             return true; /* Case 2) */
 514         }
 515     }
 516
 517     /* Only cases 3) and 4) left */
 518     wxASSERT( m_imageList != NULL ); /* Just in case */
 519
 520     /* Construct the new pixmap */
 521     const wxBitmap *bmp = m_imageList->GetBitmapPtr(image);
 522
 523     if (pixmapwid == NULL)
 524     {
 525         /* Case 3) No old pixmap. Create a new one and prepend it to the hbox */
 526         pixmapwid = gtk_image_new_from_pixbuf(bmp->GetPixbuf());
 527
 528         /* CHECKME: Are these pack flags okay? */
 529         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 530         gtk_widget_show(pixmapwid);
 531     }
 532     else
 533     {
 534         /* Case 4) Simply replace the pixmap */
 535         gtk_image_set_from_pixbuf((GtkImage*)pixmapwid, bmp->GetPixbuf());
 536     }
 537
 538     nb_page->m_image = image;
 539
 540     return true;
 541 }
 542
 543 void wxNotebook::SetPageSize( const wxSize &WXUNUSED(size) )
 544 {
 545     wxFAIL_MSG( wxT("wxNotebook::SetPageSize not implemented") );
 546 }
 547
 548 void wxNotebook::SetPadding( const wxSize &padding )
 549 {
 550     wxCHECK_RET( m_widget != NULL, wxT("invalid notebook") );
 551
 552     m_padding = padding.GetWidth();
 553
 554     int i;
 555     for (i=0; i<int(GetPageCount()); i++)
 556     {
 557         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 558         wxASSERT(nb_page != NULL);
 559
 560         if (nb_page->m_image != -1)
 561         {
 562             // gtk_box_set_child_packing sets padding on BOTH sides
 563             // icon provides left padding, label provides center and right
 564             int image = nb_page->m_image;
 565             SetPageImage(i,-1);
 566             SetPageImage(i,image);
 567         }
 568         wxASSERT(nb_page->m_label);
 569         gtk_box_set_child_packing(GTK_BOX(nb_page->m_box),
 570                                   GTK_WIDGET(nb_page->m_label),
 571                                   FALSE, FALSE, m_padding, GTK_PACK_END);
 572     }
 573 }
 574
 575 void wxNotebook::SetTabSize(const wxSize& WXUNUSED(sz))
 576 {
 577     wxFAIL_MSG( wxT("wxNotebook::SetTabSize not implemented") );
 578 }
 579
 580 bool wxNotebook::DeleteAllPages()
 581 {
 582     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid notebook") );
 583
 584     while (m_pagesData.GetCount() > 0)
 585         DeletePage( m_pagesData.GetCount()-1 );
 586
 587     wxASSERT_MSG( GetPageCount() == 0, _T("all pages must have been deleted") );
 588
 589     InvalidateBestSize();
 590     return wxNotebookBase::DeleteAllPages();
 591 }
 592
 593 wxNotebookPage *wxNotebook::DoRemovePage( size_t page )
 594 {
 595     if ( m_selection != -1 && (size_t)m_selection >= page )
 596     {
 597         // the index will become invalid after the page is deleted
 598         m_selection = -1;
 599     }
 600
 601     wxNotebookPage *client = wxNotebookBase::DoRemovePage(page);
 602     if ( !client )
 603         return NULL;
 604
 605     gtk_widget_ref( client->m_widget );
 606     gtk_widget_unrealize( client->m_widget );
 607
 608     // we don't need to unparent the client->m_widget; GTK+ will do
 609     // that for us (and will throw a warning if we do it!)
 610
 611     // gtk_notebook_remove_page() sends "switch_page" signal with some strange
 612     // new page index (when deleting selected page 0, new page is 1 although,
 613     // clearly, the selection should stay 0), so suppress this
 614     g_signal_handlers_disconnect_by_func (m_widget,
 615                                           (gpointer) gtk_notebook_page_change_callback,
 616                                           this);
 617
 618     gtk_notebook_remove_page( GTK_NOTEBOOK(m_widget), page );
 619
 620     g_signal_connect (m_widget, "switch_page",
 621                       G_CALLBACK (gtk_notebook_page_change_callback), this);
 622
 623     wxGtkNotebookPage* p = GetNotebookPage(page);
 624     m_pagesData.DeleteObject(p);
 625     delete p;
 626
 627     return client;
 628 }
 629
 630 bool wxNotebook::InsertPage( size_t position,
 631                              wxNotebookPage* win,
 632                              const wxString& text,
 633                              bool select,
 634                              int imageId )
 635 {
 636     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid notebook") );
 637
 638     wxCHECK_MSG( win->GetParent() == this, false,
 639                wxT("Can't add a page whose parent is not the notebook!") );
 640
 641     wxCHECK_MSG( position <= GetPageCount(), false,
 642                  _T("invalid page index in wxNotebookPage::InsertPage()") );
 643
 644     // Hack Alert! (Part II): See above in wxInsertChildInNotebook callback
 645     // why this has to be done.  NOTE: using gtk_widget_unparent here does not
 646     // work as it seems to undo too much and will cause errors in the
 647     // gtk_notebook_insert_page below, so instead just clear the parent by
 648     // hand here.
 649     win->m_widget->parent = NULL;
 650
 651     // don't receive switch page during addition
 652     g_signal_handlers_disconnect_by_func (m_widget,
 653                                           (gpointer) gtk_notebook_page_change_callback,
 654                                           this);
 655
 656     if (m_themeEnabled)
 657         win->SetThemeEnabled(true);
 658
 659     GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 660
 661     wxGtkNotebookPage *nb_page = new wxGtkNotebookPage();
 662
 663     if ( position == GetPageCount() )
 664         m_pagesData.Append( nb_page );
 665     else
 666         m_pagesData.Insert( position, nb_page );
 667
 668     m_pages.Insert(win, position);
 669
 670     nb_page->m_box = gtk_hbox_new( FALSE, 1 );
 671     gtk_container_set_border_width((GtkContainer*)nb_page->m_box, 2);
 672
 673     g_signal_connect (win->m_widget, "size_allocate",
 674                       G_CALLBACK (gtk_page_size_callback), win);
 675
 676     gtk_notebook_insert_page( notebook, win->m_widget, nb_page->m_box, position );
 677
 678     nb_page->m_page = (GtkNotebookPage*) g_list_last(notebook->children)->data;
 679
 680     /* set the label image */
 681     nb_page->m_image = imageId;
 682
 683     if (imageId != -1)
 684     {
 685         wxASSERT( m_imageList != NULL );
 686
 687         const wxBitmap *bmp = m_imageList->GetBitmapPtr(imageId);
 688         GtkWidget* pixmapwid = gtk_image_new_from_pixbuf(bmp->GetPixbuf());
 689         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 690         gtk_widget_show(pixmapwid);
 691     }
 692
 693     /* set the label text */
 694
 695     nb_page->m_text = wxStripMenuCodes(text);
 696     if (nb_page->m_text.empty()) nb_page->m_text = wxEmptyString;
 697
 698     nb_page->m_label = GTK_LABEL( gtk_label_new(wxGTK_CONV(nb_page->m_text)) );
 699     gtk_box_pack_end( GTK_BOX(nb_page->m_box), GTK_WIDGET(nb_page->m_label), FALSE, FALSE, m_padding );
 700
 701     /* apply current style */
 702     GtkRcStyle *style = CreateWidgetStyle();
 703     if ( style )
 704     {
 705         gtk_widget_modify_style(GTK_WIDGET(nb_page->m_label), style);
 706         gtk_rc_style_unref(style);
 707     }
 708
 709     /* show the label */
 710     gtk_widget_show( GTK_WIDGET(nb_page->m_label) );
 711     if (select && (m_pagesData.GetCount() > 1))
 712     {
 713       SetSelection( position );
 714     }
 715
 716     g_signal_connect (m_widget, "switch_page",
 717                       G_CALLBACK (gtk_notebook_page_change_callback), this);
 718
 719     InvalidateBestSize();
 720     return true;
 721 }
 722
 723 // helper for HitTest(): check if the point lies inside the given widget which
 724 // is the child of the notebook whose position and border size are passed as
 725 // parameters
 726 static bool
 727 IsPointInsideWidget(const wxPoint& pt, GtkWidget *w,
 728                     gint x, gint y, gint border = 0)
 729 {
 730     return
 731         (pt.x >= w->allocation.x - x - border) &&
 732         (pt.x <= w->allocation.x - x + border + w->allocation.width) &&
 733         (pt.y >= w->allocation.y - y - border) &&
 734         (pt.y <= w->allocation.y - y + border + w->allocation.height);
 735 }
 736
 737 int wxNotebook::HitTest(const wxPoint& pt, long *flags) const
 738 {
 739     const gint x = m_widget->allocation.x;
 740     const gint y = m_widget->allocation.y;
 741
 742     const size_t count = GetPageCount();
 743     size_t i = 0;
 744
 745     GtkNotebook * notebook = GTK_NOTEBOOK(m_widget);
 746     if (gtk_notebook_get_scrollable(notebook))
 747         i = g_list_position( notebook->children, notebook->first_tab );
 748
 749     for ( ; i < count; i++ )
 750     {
 751         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 752         GtkWidget *box = nb_page->m_box;
 753
 754         const gint border = gtk_container_get_border_width(GTK_CONTAINER(box));
 755
 756         if ( IsPointInsideWidget(pt, box, x, y, border) )
 757         {
 758             // ok, we're inside this tab -- now find out where, if needed
 759             if ( flags )
 760             {
 761                 GtkWidget *pixmap = NULL;
 762
 763                 GList *children = gtk_container_get_children(GTK_CONTAINER(box));
 764                 for ( GList *child = children; child; child = child->next )
 765                 {
 766                     if (GTK_IS_IMAGE(child->data))
 767                     {
 768                         pixmap = GTK_WIDGET(child->data);
 769                         break;
 770                     }
 771                 }
 772
 773                 if ( children )
 774                     g_list_free(children);
 775
 776                 if ( pixmap && IsPointInsideWidget(pt, pixmap, x, y) )
 777                 {
 778                     *flags = wxBK_HITTEST_ONICON;
 779                 }
 780                 else if ( IsPointInsideWidget(pt, GTK_WIDGET(nb_page->m_label), x, y) )
 781                 {
 782                     *flags = wxBK_HITTEST_ONLABEL;
 783                 }
 784                 else
 785                 {
 786                     *flags = wxBK_HITTEST_ONITEM;
 787                 }
 788             }
 789
 790             return i;
 791         }
 792     }
 793
 794     if ( flags )
 795     {
 796         *flags = wxBK_HITTEST_NOWHERE;
 797         wxWindowBase * page = GetCurrentPage();
 798         if ( page )
 799         {
 800             // rect origin is in notebook's parent coordinates
 801             wxRect rect = page->GetRect();
 802
 803             // adjust it to the notebook's coordinates
 804             wxPoint pos = GetPosition();
 805             rect.x -= pos.x;
 806             rect.y -= pos.y;
 807             if ( rect.Contains( pt ) )
 808                 *flags |= wxBK_HITTEST_ONPAGE;
 809         }
 810     }
 811
 812     return wxNOT_FOUND;
 813 }
 814
 815 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 816 {
 817     if (event.IsWindowChange())
 818         AdvanceSelection( event.GetDirection() );
 819     else
 820         event.Skip();
 821 }
 822
 823 #if wxUSE_CONSTRAINTS
 824
 825 // override these 2 functions to do nothing: everything is done in OnSize
 826 void wxNotebook::SetConstraintSizes( bool WXUNUSED(recurse) )
 827 {
 828     // don't set the sizes of the pages - their correct size is not yet known
 829     wxControl::SetConstraintSizes(false);
 830 }
 831
 832 bool wxNotebook::DoPhase( int WXUNUSED(nPhase) )
 833 {
 834     return true;
 835 }
 836
 837 #endif
 838
 839 void wxNotebook::DoApplyWidgetStyle(GtkRcStyle *style)
 840 {
 841     gtk_widget_modify_style(m_widget, style);
 842     size_t cnt = m_pagesData.GetCount();
 843     for (size_t i = 0; i < cnt; i++)
 844         gtk_widget_modify_style(GTK_WIDGET(GetNotebookPage(i)->m_label), style);
 845 }
 846
 847 GdkWindow *wxNotebook::GTKGetWindow(wxArrayGdkWindows& windows) const
 848 {
 849     windows.push_back(m_widget->window);
 850     windows.push_back(GTK_NOTEBOOK(m_widget)->event_window);
 851
 852     return NULL;
 853 }
 854
 855 // static
 856 wxVisualAttributes
 857 wxNotebook::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 858 {
 859     return GetDefaultAttributesFromGTKWidget(gtk_notebook_new);
 860 }
 861
 862 //-----------------------------------------------------------------------------
 863 // wxNotebookEvent
 864 //-----------------------------------------------------------------------------
 865
 866 IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxNotifyEvent)
 867
 868 #endif