src/univ/notebook.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/univ/notebook.cpp
   3 // Purpose:     wxNotebook implementation
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     01.02.01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #if wxUSE_NOTEBOOK
  27
  28 #include "wx/notebook.h"
  29
  30 #ifndef WX_PRECOMP
  31     #include "wx/dcmemory.h"
  32 #endif
  33
  34 #include "wx/imaglist.h"
  35 #include "wx/spinbutt.h"
  36
  37 #include "wx/univ/renderer.h"
  38
  39 // ----------------------------------------------------------------------------
  40 // wxStdNotebookInputHandler: translates SPACE and ENTER keys and the left mouse
  41 // click into button press/release actions
  42 // ----------------------------------------------------------------------------
  43
  44 class WXDLLEXPORT wxStdNotebookInputHandler : public wxStdInputHandler
  45 {
  46 public:
  47     wxStdNotebookInputHandler(wxInputHandler *inphand);
  48
  49     virtual bool HandleKey(wxInputConsumer *consumer,
  50                            const wxKeyEvent& event,
  51                            bool pressed);
  52     virtual bool HandleMouse(wxInputConsumer *consumer,
  53                              const wxMouseEvent& event);
  54     virtual bool HandleMouseMove(wxInputConsumer *consumer, const wxMouseEvent& event);
  55     virtual bool HandleFocus(wxInputConsumer *consumer, const wxFocusEvent& event);
  56     virtual bool HandleActivation(wxInputConsumer *consumer, bool activated);
  57
  58 protected:
  59     void HandleFocusChange(wxInputConsumer *consumer);
  60 };
  61
  62 // ----------------------------------------------------------------------------
  63 // macros
  64 // ----------------------------------------------------------------------------
  65
  66 #if 0
  67 // due to unsigned type nPage is always >= 0
  68 #define IS_VALID_PAGE(nPage) (((nPage) >= 0) && ((size_t(nPage)) < GetPageCount()))
  69 #else
  70 #define IS_VALID_PAGE(nPage) (((size_t)nPage) < GetPageCount())
  71 #endif
  72
  73 // ----------------------------------------------------------------------------
  74 // private classes
  75 // ----------------------------------------------------------------------------
  76
  77 class wxNotebookSpinBtn : public wxSpinButton
  78 {
  79 public:
  80     wxNotebookSpinBtn(wxNotebook *nb)
  81         : wxSpinButton(nb, wxID_ANY,
  82                        wxDefaultPosition, wxDefaultSize,
  83                        nb->IsVertical() ? wxSP_VERTICAL : wxSP_HORIZONTAL)
  84     {
  85         m_nb = nb;
  86     }
  87
  88 protected:
  89     void OnSpin(wxSpinEvent& event)
  90     {
  91         m_nb->PerformAction(wxACTION_NOTEBOOK_GOTO, event.GetPosition());
  92     }
  93
  94 private:
  95     wxNotebook *m_nb;
  96
  97     DECLARE_EVENT_TABLE()
  98 };
  99
 100 BEGIN_EVENT_TABLE(wxNotebookSpinBtn, wxSpinButton)
 101     EVT_SPIN(wxID_ANY, wxNotebookSpinBtn::OnSpin)
 102 END_EVENT_TABLE()
 103
 104 // ============================================================================
 105 // implementation
 106 // ============================================================================
 107
 108 // ----------------------------------------------------------------------------
 109 // wxNotebook creation
 110 // ----------------------------------------------------------------------------
 111
 112 void wxNotebook::Init()
 113 {
 114     m_heightTab =
 115     m_widthMax = 0;
 116
 117     m_firstVisible =
 118     m_lastVisible =
 119     m_lastFullyVisible = 0;
 120
 121     m_offset = 0;
 122
 123     m_spinbtn = NULL;
 124 }
 125
 126 bool wxNotebook::Create(wxWindow *parent,
 127                         wxWindowID id,
 128                         const wxPoint& pos,
 129                         const wxSize& size,
 130                         long style,
 131                         const wxString& name)
 132 {
 133     if ( (style & wxBK_ALIGN_MASK) == wxBK_DEFAULT )
 134         style |= wxBK_TOP;
 135
 136     if ( !wxControl::Create(parent, id, pos, size, style,
 137                             wxDefaultValidator, name) )
 138         return false;
 139
 140     m_sizePad = GetRenderer()->GetTabPadding();
 141
 142     SetInitialSize(size);
 143
 144     CreateInputHandler(wxINP_HANDLER_NOTEBOOK);
 145
 146     return true;
 147 }
 148
 149 // ----------------------------------------------------------------------------
 150 // wxNotebook page titles and images
 151 // ----------------------------------------------------------------------------
 152
 153 wxString wxNotebook::GetPageText(size_t nPage) const
 154 {
 155     wxCHECK_MSG( IS_VALID_PAGE(nPage), wxEmptyString, wxT("invalid notebook page") );
 156
 157     return m_titles[nPage];
 158 }
 159
 160 bool wxNotebook::SetPageText(size_t nPage, const wxString& strText)
 161 {
 162     wxCHECK_MSG( IS_VALID_PAGE(nPage), false, wxT("invalid notebook page") );
 163
 164     if ( strText != m_titles[nPage] )
 165     {
 166         m_accels[nPage] = FindAccelIndex(strText, &m_titles[nPage]);
 167
 168         if ( FixedSizeTabs() )
 169         {
 170             // it's enough to just reresh this one
 171             RefreshTab(nPage);
 172         }
 173         else // var width tabs
 174         {
 175             // we need to resize the tab to fit the new string
 176             ResizeTab(nPage);
 177         }
 178     }
 179
 180     return true;
 181 }
 182
 183 int wxNotebook::GetPageImage(size_t nPage) const
 184 {
 185     wxCHECK_MSG( IS_VALID_PAGE(nPage), wxNOT_FOUND, wxT("invalid notebook page") );
 186
 187     return m_images[nPage];
 188 }
 189
 190 bool wxNotebook::SetPageImage(size_t nPage, int nImage)
 191 {
 192     wxCHECK_MSG( IS_VALID_PAGE(nPage), false, wxT("invalid notebook page") );
 193
 194     wxCHECK_MSG( HasImageList() && nImage < GetImageList()->GetImageCount(),
 195                  false, wxT("invalid image index in SetPageImage()") );
 196
 197     if ( nImage != m_images[nPage] )
 198     {
 199         // if the item didn't have an icon before or, on the contrary, did have
 200         // it but has lost it now, its size will change - but if the icon just
 201         // changes, it won't
 202         bool tabSizeChanges = nImage == -1 || m_images[nPage] == -1;
 203         m_images[nPage] = nImage;
 204
 205         if ( tabSizeChanges )
 206             RefreshAllTabs();
 207         else
 208             RefreshTab(nPage);
 209     }
 210
 211     return true;
 212 }
 213
 214 wxNotebook::~wxNotebook()
 215 {
 216 }
 217
 218 // ----------------------------------------------------------------------------
 219 // wxNotebook page switching
 220 // ----------------------------------------------------------------------------
 221
 222 int wxNotebook::DoSetSelection(size_t nPage, int flags)
 223 {
 224     wxCHECK_MSG( IS_VALID_PAGE(nPage), wxNOT_FOUND, wxT("invalid notebook page") );
 225
 226     if ( (int)nPage == m_selection )
 227     {
 228         // don't do anything if there is nothing to do
 229         return m_selection;
 230     }
 231
 232     if ( flags & SetSelection_SendEvent )
 233     {
 234         if ( !SendPageChangingEvent(nPage) )
 235         {
 236             // program doesn't allow the page change
 237             return m_selection;
 238         }
 239     }
 240
 241     // we need to change m_selection first, before calling RefreshTab() below as
 242     // otherwise the previously selected tab wouldn't be redrawn properly under
 243     // wxGTK which calls Refresh() immediately and not during the next event
 244     // loop iteration as wxMSW does and as it should
 245     int selOld = m_selection;
 246
 247     m_selection = nPage;
 248
 249     if ( selOld != wxNOT_FOUND )
 250     {
 251         RefreshTab(selOld, true /* this tab was selected */);
 252
 253         m_pages[selOld]->Hide();
 254     }
 255
 256     if ( m_selection != wxNOT_FOUND ) // this is impossible - but test nevertheless
 257     {
 258         if ( HasSpinBtn() )
 259         {
 260             // keep it in sync
 261             m_spinbtn->SetValue(m_selection);
 262         }
 263
 264         if ( nPage < m_firstVisible )
 265         {
 266             // selection is to the left of visible part of tabs
 267             ScrollTo(nPage);
 268         }
 269         else if ( nPage > m_lastFullyVisible )
 270         {
 271             // selection is to the right of visible part of tabs
 272             ScrollLastTo(nPage);
 273         }
 274         else // we already see this tab
 275         {
 276             // no need to scroll
 277             RefreshTab(nPage);
 278         }
 279
 280         m_pages[nPage]->SetSize(GetPageRect());
 281         m_pages[nPage]->Show();
 282     }
 283
 284     if ( flags & SetSelection_SendEvent )
 285     {
 286         // event handling
 287         SendPageChangedEvent(selOld);
 288     }
 289
 290     return selOld;
 291 }
 292
 293 // ----------------------------------------------------------------------------
 294 // wxNotebook pages adding/deleting
 295 // ----------------------------------------------------------------------------
 296
 297 bool wxNotebook::InsertPage(size_t nPage,
 298                             wxNotebookPage *pPage,
 299                             const wxString& strText,
 300                             bool bSelect,
 301                             int imageId)
 302 {
 303     size_t nPages = GetPageCount();
 304     wxCHECK_MSG( nPage == nPages || IS_VALID_PAGE(nPage), false,
 305                  wxT("invalid notebook page in InsertPage()") );
 306
 307     // modify the data
 308     m_pages.Insert(pPage, nPage);
 309
 310     wxString label;
 311     m_accels.Insert(FindAccelIndex(strText, &label), nPage);
 312     m_titles.Insert(label, nPage);
 313
 314     m_images.Insert(imageId, nPage);
 315
 316     // cache the tab geometry here
 317     wxSize sizeTab = CalcTabSize(nPage);
 318
 319     if ( sizeTab.y > m_heightTab )
 320         m_heightTab = sizeTab.y;
 321
 322     if ( FixedSizeTabs() && sizeTab.x > m_widthMax )
 323         m_widthMax = sizeTab.x;
 324
 325     m_widths.Insert(sizeTab.x, nPage);
 326
 327     // spin button may appear if we didn't have it before - but even if we did,
 328     // its range should change, so update it unconditionally
 329     UpdateSpinBtn();
 330
 331     // if the tab has just appeared, we have to relayout everything, otherwise
 332     // it's enough to just redraw the tabs
 333     if ( nPages == 0 )
 334     {
 335         // always select the first tab to have at least some selection
 336         bSelect = true;
 337
 338         Relayout();
 339         Refresh();
 340     }
 341     else // not the first tab
 342     {
 343         RefreshAllTabs();
 344     }
 345
 346     if ( bSelect )
 347     {
 348         SetSelection(nPage);
 349     }
 350     else // pages added to the notebook are initially hidden
 351     {
 352         pPage->Hide();
 353     }
 354
 355     return true;
 356 }
 357
 358 bool wxNotebook::DeleteAllPages()
 359 {
 360     if ( !wxNotebookBase::DeleteAllPages() )
 361         return false;
 362
 363     // clear the other arrays as well
 364     m_titles.Clear();
 365     m_images.Clear();
 366     m_accels.Clear();
 367     m_widths.Clear();
 368
 369     // spin button is not needed any more
 370     UpdateSpinBtn();
 371
 372     Relayout();
 373
 374     return true;
 375 }
 376
 377 wxNotebookPage *wxNotebook::DoRemovePage(size_t nPage)
 378 {
 379     wxCHECK_MSG( IS_VALID_PAGE(nPage), NULL, wxT("invalid notebook page") );
 380
 381     wxNotebookPage *page = m_pages[nPage];
 382     m_pages.RemoveAt(nPage);
 383     m_titles.RemoveAt(nPage);
 384     m_accels.RemoveAt(nPage);
 385     m_widths.RemoveAt(nPage);
 386     m_images.RemoveAt(nPage);
 387
 388     // the spin button might not be needed any more
 389     // 2002-08-12 'if' commented out by JACS on behalf
 390     // of Hans Van Leemputten <Hansvl@softhome.net> who
 391     // points out that UpdateSpinBtn should always be called,
 392     // to ensure m_lastVisible is up to date.
 393     // if ( HasSpinBtn() )
 394     {
 395         UpdateSpinBtn();
 396     }
 397
 398     size_t count = GetPageCount();
 399     if ( count )
 400     {
 401         wxASSERT_MSG( m_selection != wxNOT_FOUND, "should have selection" );
 402
 403         if ( (size_t)m_selection == nPage )
 404         {
 405             // avoid sending event to this page which doesn't exist in the
 406             // notebook any more
 407             m_selection = wxNOT_FOUND;
 408
 409             SetSelection(nPage == count ? nPage - 1 : nPage);
 410         }
 411         else if ( (size_t)m_selection > nPage )
 412         {
 413             // no need to change selection, just adjust the index
 414             m_selection--;
 415         }
 416     }
 417     else // no more tabs left
 418     {
 419         m_selection = wxNOT_FOUND;
 420     }
 421
 422     // have to refresh everything
 423     Relayout();
 424
 425     return page;
 426 }
 427
 428 // ----------------------------------------------------------------------------
 429 // wxNotebook drawing
 430 // ----------------------------------------------------------------------------
 431
 432 void wxNotebook::RefreshCurrent()
 433 {
 434     if ( m_selection != wxNOT_FOUND )
 435     {
 436         RefreshTab(m_selection);
 437     }
 438 }
 439
 440 void wxNotebook::RefreshTab(int page, bool forceSelected)
 441 {
 442     wxCHECK_RET( IS_VALID_PAGE(page), wxT("invalid notebook page") );
 443
 444     wxRect rect = GetTabRect(page);
 445     if ( forceSelected || (page == m_selection) )
 446     {
 447         const wxSize indent = GetRenderer()->GetTabIndent();
 448         rect.Inflate(indent.x, indent.y);
 449     }
 450
 451     RefreshRect(rect);
 452 }
 453
 454 void wxNotebook::RefreshAllTabs()
 455 {
 456     wxRect rect = GetAllTabsRect();
 457     if ( rect.width || rect.height )
 458     {
 459         RefreshRect(rect);
 460     }
 461     //else: we don't have tabs at all
 462 }
 463
 464 void wxNotebook::DoDrawTab(wxDC& dc, const wxRect& rect, size_t n)
 465 {
 466     wxBitmap bmp;
 467     if ( HasImage(n) )
 468     {
 469         int image = m_images[n];
 470
 471         // Not needed now that wxGenericImageList is being
 472         // used for wxUniversal under MSW
 473 #if 0 // def __WXMSW__    // FIXME
 474         int w, h;
 475         GetImageList()->GetSize(n, w, h);
 476         bmp.Create(w, h);
 477         wxMemoryDC dc;
 478         dc.SelectObject(bmp);
 479         dc.SetBackground(wxBrush(GetBackgroundColour(), wxSOLID));
 480         GetImageList()->Draw(image, dc, 0, 0, wxIMAGELIST_DRAW_NORMAL, true);
 481         dc.SelectObject(wxNullBitmap);
 482 #else
 483         bmp = GetImageList()->GetBitmap(image);
 484 #endif
 485     }
 486
 487     int flags = 0;
 488     if ( (int)n == m_selection )
 489     {
 490         flags |= wxCONTROL_SELECTED;
 491
 492         if ( IsFocused() )
 493             flags |= wxCONTROL_FOCUSED;
 494     }
 495
 496     GetRenderer()->DrawTab
 497                    (
 498                      dc,
 499                      rect,
 500                      GetTabOrientation(),
 501                      m_titles[n],
 502                      bmp,
 503                      flags,
 504                      m_accels[n]
 505                    );
 506 }
 507
 508 void wxNotebook::DoDraw(wxControlRenderer *renderer)
 509 {
 510     //wxRect rectUpdate = GetUpdateClientRect(); -- unused
 511
 512     wxDC& dc = renderer->GetDC();
 513     dc.SetFont(GetFont());
 514     dc.SetTextForeground(GetForegroundColour());
 515
 516     // redraw the border - it's simpler to always do it instead of checking
 517     // whether this needs to be done
 518     GetRenderer()->DrawBorder(dc, wxBORDER_RAISED, GetPagePart());
 519
 520     // avoid overwriting the spin button
 521     if ( HasSpinBtn() )
 522     {
 523         wxRect rectTabs = GetAllTabsRect();
 524         wxSize sizeSpinBtn = m_spinbtn->GetSize();
 525
 526         if ( IsVertical() )
 527         {
 528             rectTabs.height -= sizeSpinBtn.y;
 529
 530             // Allow for erasing the line under selected tab
 531             rectTabs.width += 2;
 532         }
 533         else
 534         {
 535             rectTabs.width -= sizeSpinBtn.x;
 536
 537             // Allow for erasing the line under selected tab
 538             rectTabs.height += 2;
 539         }
 540
 541         dc.SetClippingRegion(rectTabs);
 542     }
 543
 544     wxRect rect = GetTabsPart();
 545     bool isVertical = IsVertical();
 546
 547     wxRect rectSel;
 548     for ( size_t n = m_firstVisible; n < m_lastVisible; n++ )
 549     {
 550         GetTabSize(n, &rect.width, &rect.height);
 551
 552         if ( (int)n == m_selection )
 553         {
 554             // don't redraw it now as this tab has to be drawn over the other
 555             // ones as it takes more place and spills over to them
 556             rectSel = rect;
 557         }
 558         else // not selected tab
 559         {
 560             // unfortunately we can't do this because the selected tab hangs
 561             // over its neighbours and so we might need to refresh more tabs -
 562             // of course, we could still avoid rereshing some of them with more
 563             // complicated checks, but it doesn't seem too bad to refresh all
 564             // of them, I still don't see flicker, so leaving as is for now
 565
 566             //if ( rectUpdate.Intersects(rect) )
 567             {
 568                 DoDrawTab(dc, rect, n);
 569             }
 570             //else: doesn't need to be refreshed
 571         }
 572
 573         // move the rect to the next tab
 574         if ( isVertical )
 575             rect.y += rect.height;
 576         else
 577             rect.x += rect.width;
 578     }
 579
 580     // now redraw the selected tab
 581     if ( rectSel.width )
 582     {
 583         DoDrawTab(dc, rectSel, m_selection);
 584     }
 585
 586     dc.DestroyClippingRegion();
 587 }
 588
 589 // ----------------------------------------------------------------------------
 590 // wxNotebook geometry
 591 // ----------------------------------------------------------------------------
 592
 593 int wxNotebook::HitTest(const wxPoint& pt, long *flags) const
 594 {
 595     if ( flags )
 596         *flags = wxBK_HITTEST_NOWHERE;
 597
 598     // first check that it is in this window at all
 599     if ( !GetClientRect().Contains(pt) )
 600     {
 601         return -1;
 602     }
 603
 604     wxRect rectTabs = GetAllTabsRect();
 605
 606     switch ( GetTabOrientation() )
 607     {
 608         default:
 609             wxFAIL_MSG(wxT("unknown tab orientation"));
 610             // fall through
 611
 612         case wxTOP:
 613             if ( pt.y > rectTabs.GetBottom() )
 614                 return -1;
 615             break;
 616
 617         case wxBOTTOM:
 618             if ( pt.y < rectTabs.y )
 619                 return -1;
 620             break;
 621
 622         case wxLEFT:
 623             if ( pt.x > rectTabs.GetRight() )
 624                 return -1;
 625             break;
 626
 627         case wxRIGHT:
 628             if ( pt.x < rectTabs.x )
 629                 return -1;
 630             break;
 631     }
 632
 633     for ( size_t n = m_firstVisible; n < m_lastVisible; n++ )
 634     {
 635         GetTabSize(n, &rectTabs.width, &rectTabs.height);
 636
 637         if ( rectTabs.Contains(pt) )
 638         {
 639             if ( flags )
 640             {
 641                 // TODO: be more precise
 642                 *flags = wxBK_HITTEST_ONITEM;
 643             }
 644
 645             return n;
 646         }
 647
 648         // move the rectTabs to the next tab
 649         if ( IsVertical() )
 650             rectTabs.y += rectTabs.height;
 651         else
 652             rectTabs.x += rectTabs.width;
 653     }
 654
 655     return -1;
 656 }
 657
 658 bool wxNotebook::IsVertical() const
 659 {
 660     wxDirection dir = GetTabOrientation();
 661
 662     return dir == wxLEFT || dir == wxRIGHT;
 663 }
 664
 665 wxDirection wxNotebook::GetTabOrientation() const
 666 {
 667     long style = GetWindowStyle();
 668     if ( style & wxBK_BOTTOM )
 669         return wxBOTTOM;
 670     else if ( style & wxBK_RIGHT )
 671         return wxRIGHT;
 672     else if ( style & wxBK_LEFT )
 673         return wxLEFT;
 674
 675     // wxBK_TOP == 0 so we don't have to test for it
 676     return wxTOP;
 677 }
 678
 679 wxRect wxNotebook::GetTabRect(int page) const
 680 {
 681     wxRect rect;
 682     wxCHECK_MSG( IS_VALID_PAGE(page), rect, wxT("invalid notebook page") );
 683
 684     // calc the size of this tab and of the preceding ones
 685     wxCoord widthThis, widthBefore;
 686     if ( FixedSizeTabs() )
 687     {
 688         widthThis = m_widthMax;
 689         widthBefore = page*m_widthMax;
 690     }
 691     else
 692     {
 693         widthBefore = 0;
 694         for ( int n = 0; n < page; n++ )
 695         {
 696             widthBefore += m_widths[n];
 697         }
 698
 699         widthThis = m_widths[page];
 700     }
 701
 702     rect = GetTabsPart();
 703     if ( IsVertical() )
 704     {
 705         rect.y += widthBefore - m_offset;
 706         rect.height = widthThis;
 707     }
 708     else // horz
 709     {
 710         rect.x += widthBefore - m_offset;
 711         rect.width = widthThis;
 712     }
 713
 714     return rect;
 715 }
 716
 717 wxRect wxNotebook::GetAllTabsRect() const
 718 {
 719     wxRect rect;
 720
 721     if ( GetPageCount() )
 722     {
 723         const wxSize indent = GetRenderer()->GetTabIndent();
 724         wxSize size = GetClientSize();
 725
 726         if ( IsVertical() )
 727         {
 728             rect.width = m_heightTab + indent.x;
 729             rect.x = GetTabOrientation() == wxLEFT ? 0 : size.x - rect.width;
 730             rect.y = 0;
 731             rect.height = size.y;
 732         }
 733         else // horz
 734         {
 735             rect.x = 0;
 736             rect.width = size.x;
 737             rect.height = m_heightTab + indent.y;
 738             rect.y = GetTabOrientation() == wxTOP ? 0 : size.y - rect.height;
 739         }
 740     }
 741     //else: no pages
 742
 743     return rect;
 744 }
 745
 746 wxRect wxNotebook::GetTabsPart() const
 747 {
 748     wxRect rect = GetAllTabsRect();
 749
 750     wxDirection dir = GetTabOrientation();
 751
 752     const wxSize indent = GetRenderer()->GetTabIndent();
 753     if ( IsVertical() )
 754     {
 755         rect.y += indent.x;
 756         if ( dir == wxLEFT )
 757         {
 758             rect.x += indent.y;
 759             rect.width -= indent.y;
 760         }
 761         else // wxRIGHT
 762         {
 763             rect.width -= indent.y;
 764         }
 765     }
 766     else // horz
 767     {
 768         rect.x += indent.x;
 769         if ( dir == wxTOP )
 770         {
 771             rect.y += indent.y;
 772             rect.height -= indent.y;
 773         }
 774         else // wxBOTTOM
 775         {
 776             rect.height -= indent.y;
 777         }
 778     }
 779
 780     return rect;
 781 }
 782
 783 void wxNotebook::GetTabSize(int page, wxCoord *w, wxCoord *h) const
 784 {
 785     wxCHECK_RET( w && h, wxT("NULL pointer in GetTabSize") );
 786
 787     if ( IsVertical() )
 788     {
 789         // width and height have inverted meaning
 790         wxCoord *tmp = w;
 791         w = h;
 792         h = tmp;
 793     }
 794
 795     // height is always fixed
 796     *h = m_heightTab;
 797
 798     // width may also be fixed and be the same for all tabs
 799     *w = GetTabWidth(page);
 800 }
 801
 802 void wxNotebook::SetTabSize(const wxSize& sz)
 803 {
 804     wxCHECK_RET( FixedSizeTabs(), wxT("SetTabSize() ignored") );
 805
 806     if ( IsVertical() )
 807     {
 808         m_heightTab = sz.x;
 809         m_widthMax = sz.y;
 810     }
 811     else // horz
 812     {
 813         m_widthMax = sz.x;
 814         m_heightTab = sz.y;
 815     }
 816 }
 817
 818 wxSize wxNotebook::CalcTabSize(int page) const
 819 {
 820     // NB: don't use m_widthMax, m_heightTab or m_widths here because this
 821     //     method is called to calculate them
 822
 823     wxSize size;
 824
 825     wxCHECK_MSG( IS_VALID_PAGE(page), size, wxT("invalid notebook page") );
 826
 827     GetTextExtent(m_titles[page], &size.x, &size.y);
 828
 829     if ( HasImage(page) )
 830     {
 831         wxSize sizeImage;
 832         GetImageList()->GetSize(m_images[page], sizeImage.x, sizeImage.y);
 833
 834         size.x += sizeImage.x + 5; // FIXME: hard coded margin
 835
 836         if ( sizeImage.y > size.y )
 837             size.y = sizeImage.y;
 838     }
 839
 840     size.x += 2*m_sizePad.x;
 841     size.y += 2*m_sizePad.y;
 842
 843     return size;
 844 }
 845
 846 void wxNotebook::ResizeTab(int page)
 847 {
 848     wxSize sizeTab = CalcTabSize(page);
 849
 850     // we only need full relayout if the page size changes
 851     bool needsRelayout = false;
 852
 853     if ( IsVertical() )
 854     {
 855         // swap coordinates
 856         wxCoord tmp = sizeTab.x;
 857         sizeTab.x = sizeTab.y;
 858         sizeTab.y = tmp;
 859     }
 860
 861     if ( sizeTab.y > m_heightTab )
 862     {
 863         needsRelayout = true;
 864
 865         m_heightTab = sizeTab.y;
 866     }
 867
 868     m_widths[page] = sizeTab.x;
 869
 870     if ( sizeTab.x > m_widthMax )
 871         m_widthMax = sizeTab.x;
 872
 873     // the total of the tabs has changed too
 874     UpdateSpinBtn();
 875
 876     if ( needsRelayout )
 877         Relayout();
 878     else
 879         RefreshAllTabs();
 880 }
 881
 882 void wxNotebook::SetPadding(const wxSize& padding)
 883 {
 884     if ( padding != m_sizePad )
 885     {
 886         m_sizePad = padding;
 887
 888         Relayout();
 889     }
 890 }
 891
 892 void wxNotebook::Relayout()
 893 {
 894     if ( GetPageCount() )
 895     {
 896         RefreshAllTabs();
 897
 898         UpdateSpinBtn();
 899
 900         if ( m_selection != wxNOT_FOUND )
 901         {
 902             // resize the currently shown page
 903             wxRect rectPage = GetPageRect();
 904
 905             m_pages[m_selection]->SetSize(rectPage);
 906
 907             // also scroll it into view if needed (note that m_lastVisible
 908             // was updated by the call to UpdateSpinBtn() above, this is why it
 909             // is needed here)
 910             if ( HasSpinBtn() )
 911             {
 912                 const size_t selection = m_selection;
 913                 if ( selection < m_firstVisible )
 914                 {
 915                     // selection is to the left of visible part of tabs
 916                     ScrollTo(selection);
 917                 }
 918                 else if ( selection > m_lastFullyVisible )
 919                 {
 920                     // selection is to the right of visible part of tabs
 921                     ScrollLastTo(selection);
 922                 }
 923             }
 924         }
 925     }
 926     else // we have no pages
 927     {
 928         // just refresh everything
 929         Refresh();
 930     }
 931 }
 932
 933 wxRect wxNotebook::GetPagePart() const
 934 {
 935     wxRect rectPage = GetClientRect();
 936
 937     if ( GetPageCount() )
 938     {
 939         wxRect rectTabs = GetAllTabsRect();
 940         wxDirection dir = GetTabOrientation();
 941         if ( IsVertical() )
 942         {
 943             rectPage.width -= rectTabs.width;
 944             if ( dir == wxLEFT )
 945                 rectPage.x += rectTabs.width;
 946         }
 947         else // horz
 948         {
 949             rectPage.height -= rectTabs.height;
 950             if ( dir == wxTOP )
 951                 rectPage.y += rectTabs.height;
 952         }
 953     }
 954     //else: no pages at all
 955
 956     return rectPage;
 957 }
 958
 959 wxRect wxNotebook::GetPageRect() const
 960 {
 961     wxRect rect = GetPagePart();
 962
 963     // leave space for the border
 964     wxRect rectBorder = GetRenderer()->GetBorderDimensions(wxBORDER_RAISED);
 965
 966     // FIXME: hardcoded +2!
 967     rect.Inflate(-(rectBorder.x + rectBorder.width + 2),
 968                  -(rectBorder.y + rectBorder.height + 2));
 969
 970     return rect;
 971 }
 972
 973 wxSize wxNotebook::GetSizeForPage(const wxSize& size) const
 974 {
 975     wxSize sizeNb = size;
 976     wxRect rect = GetAllTabsRect();
 977     if ( IsVertical() )
 978         sizeNb.x += rect.width;
 979     else
 980         sizeNb.y += rect.height;
 981
 982     return sizeNb;
 983 }
 984
 985 void wxNotebook::SetPageSize(const wxSize& size)
 986 {
 987     SetClientSize(GetSizeForPage(size));
 988 }
 989
 990 wxSize wxNotebook::CalcSizeFromPage(const wxSize& sizePage) const
 991 {
 992     return AdjustSize(GetSizeForPage(sizePage));
 993 }
 994
 995 // ----------------------------------------------------------------------------
 996 // wxNotebook spin button
 997 // ----------------------------------------------------------------------------
 998
 999 bool wxNotebook::HasSpinBtn() const
1000 {
1001     return m_spinbtn && m_spinbtn->IsShown();
1002 }
1003
1004 void wxNotebook::CalcLastVisibleTab()
1005 {
1006     bool isVertical = IsVertical();
1007
1008     wxCoord width = GetClientSize().x;
1009
1010     wxRect rect = GetTabsPart();
1011
1012     size_t count = GetPageCount();
1013
1014     wxCoord widthLast = 0;
1015     size_t n;
1016     for ( n = m_firstVisible; n < count; n++ )
1017     {
1018         GetTabSize(n, &rect.width, &rect.height);
1019         if ( rect.GetRight() > width )
1020         {
1021             break;
1022         }
1023
1024         // remember it to use below
1025         widthLast = rect.GetRight();
1026
1027         // move the rect to the next tab
1028         if ( isVertical )
1029             rect.y += rect.height;
1030         else
1031             rect.x += rect.width;
1032     }
1033
1034     if ( n == m_firstVisible )
1035     {
1036         // even the first tab isn't fully visible - but still pretend it is as
1037         // we have to show something
1038         m_lastFullyVisible = m_firstVisible;
1039     }
1040     else // more than one tab visible
1041     {
1042         m_lastFullyVisible = n - 1;
1043
1044         // but is it really fully visible? it shouldn't overlap with the spin
1045         // button if it is present (again, even if the first button does
1046         // overlap with it, we pretend that it doesn't as there is not much
1047         // else we can do)
1048         if ( (m_lastFullyVisible > m_firstVisible) && HasSpinBtn() )
1049         {
1050             // adjust width to be the width before the spin button
1051             wxSize sizeSpinBtn = m_spinbtn->GetSize();
1052             if ( IsVertical() )
1053                 width -= sizeSpinBtn.y;
1054             else
1055                 width -= sizeSpinBtn.x;
1056
1057             if ( widthLast > width )
1058             {
1059                 // the last button overlaps with spin button, so take he
1060                 // previous one
1061                 m_lastFullyVisible--;
1062             }
1063         }
1064     }
1065
1066     if ( n == count )
1067     {
1068         // everything is visible
1069         m_lastVisible = n;
1070     }
1071     else
1072     {
1073         // this tab is still (partially) visible, so m_lastVisible is the
1074         // next tab (remember, this is "exclusive" last)
1075         m_lastVisible = n + 1;
1076
1077     }
1078 }
1079
1080 void wxNotebook::UpdateSpinBtn()
1081 {
1082     // first decide if we need a spin button
1083     bool allTabsShown;
1084
1085     size_t count = (size_t)GetPageCount();
1086     if ( count == 0 )
1087     {
1088         // this case is special, get rid of it immediately: everything is
1089         // visible and we don't need any spin buttons
1090         allTabsShown = true;
1091
1092         // have to reset them manually as we don't call CalcLastVisibleTab()
1093         m_firstVisible =
1094         m_lastVisible =
1095         m_lastFullyVisible = 0;
1096     }
1097     else
1098     {
1099         CalcLastVisibleTab();
1100
1101         // if all tabs after the first visible one are shown, it doesn't yet
1102         // mean that all tabs are shown - so we go backwards until we arrive to
1103         // the beginning (then all tabs are indeed shown) or find a tab such
1104         // that not all tabs after it are shown
1105         while ( (m_lastFullyVisible == count - 1) && (m_firstVisible > 0) )
1106         {
1107             // this is equivalent to ScrollTo(m_firstVisible - 1) but more
1108             // efficient
1109             m_offset -= GetTabWidth(m_firstVisible--);
1110
1111             // reclaculate after m_firstVisible change
1112             CalcLastVisibleTab();
1113         }
1114
1115         allTabsShown = m_lastFullyVisible == count - 1;
1116     }
1117
1118     if ( !allTabsShown )
1119     {
1120         if ( !m_spinbtn )
1121         {
1122             // create it once only
1123             m_spinbtn = new wxNotebookSpinBtn(this);
1124
1125             // set the correct value to keep it in sync
1126             m_spinbtn->SetValue(m_selection);
1127         }
1128
1129         // position it correctly
1130         PositionSpinBtn();
1131
1132         // and show it
1133         m_spinbtn->Show();
1134
1135         // also set/update the range
1136         m_spinbtn->SetRange(0, count - 1);
1137
1138         // update m_lastFullyVisible once again as it might have changed
1139         // because the spin button appeared
1140         //
1141         // FIXME: might do it more efficiently
1142         CalcLastVisibleTab();
1143     }
1144     else // all tabs are visible, we don't need spin button
1145     {
1146         if ( m_spinbtn && m_spinbtn -> IsShown() )
1147         {
1148             m_spinbtn->Hide();
1149         }
1150     }
1151 }
1152
1153 void wxNotebook::PositionSpinBtn()
1154 {
1155     if ( !m_spinbtn )
1156         return;
1157
1158     wxCoord wBtn, hBtn;
1159     m_spinbtn->GetSize(&wBtn, &hBtn);
1160
1161     wxRect rectTabs = GetAllTabsRect();
1162
1163     wxCoord x, y;
1164     switch ( GetTabOrientation() )
1165     {
1166         default:
1167             wxFAIL_MSG(wxT("unknown tab orientation"));
1168             // fall through
1169
1170         case wxTOP:
1171             x = rectTabs.GetRight() - wBtn;
1172             y = rectTabs.GetBottom() - hBtn;
1173             break;
1174
1175         case wxBOTTOM:
1176             x = rectTabs.GetRight() - wBtn;
1177             y = rectTabs.GetTop();
1178             break;
1179
1180         case wxLEFT:
1181             x = rectTabs.GetRight() - wBtn;
1182             y = rectTabs.GetBottom() - hBtn;
1183             break;
1184
1185         case wxRIGHT:
1186             x = rectTabs.GetLeft();
1187             y = rectTabs.GetBottom() - hBtn;
1188             break;
1189     }
1190
1191     m_spinbtn->Move(x, y);
1192 }
1193
1194 // ----------------------------------------------------------------------------
1195 // wxNotebook scrolling
1196 // ----------------------------------------------------------------------------
1197
1198 void wxNotebook::ScrollTo(size_t page)
1199 {
1200     wxCHECK_RET( IS_VALID_PAGE(page), wxT("invalid notebook page") );
1201
1202     // set the first visible tab and offset (easy)
1203     m_firstVisible = page;
1204     m_offset = 0;
1205     for ( size_t n = 0; n < m_firstVisible; n++ )
1206     {
1207         m_offset += GetTabWidth(n);
1208     }
1209
1210     // find the last visible tab too
1211     CalcLastVisibleTab();
1212
1213     RefreshAllTabs();
1214 }
1215
1216 void wxNotebook::ScrollLastTo(size_t page)
1217 {
1218     wxCHECK_RET( IS_VALID_PAGE(page), wxT("invalid notebook page") );
1219
1220     // go backwards until we find the first tab which can be made visible
1221     // without hiding the given one
1222     wxSize size = GetClientSize();
1223     wxCoord widthAll = IsVertical() ? size.y : size.x,
1224             widthTabs = GetTabWidth(page);
1225
1226     // the total width is less than the width of the window if we have the spin
1227     // button
1228     if ( HasSpinBtn() )
1229     {
1230         wxSize sizeSpinBtn = m_spinbtn->GetSize();
1231         if ( IsVertical() )
1232             widthAll -= sizeSpinBtn.y;
1233         else
1234             widthAll -= sizeSpinBtn.x;
1235     }
1236
1237     m_firstVisible = page;
1238     while ( (m_firstVisible > 0) && (widthTabs <= widthAll) )
1239     {
1240         widthTabs += GetTabWidth(--m_firstVisible);
1241     }
1242
1243     if ( widthTabs > widthAll )
1244     {
1245         // take one step back (that it is forward) if we can
1246         if ( m_firstVisible < (size_t)GetPageCount() - 1 )
1247             m_firstVisible++;
1248     }
1249
1250     // go to it
1251     ScrollTo(m_firstVisible);
1252
1253     // consitency check: the page we were asked to show should be shown
1254     wxASSERT_MSG( (size_t)page < m_lastVisible, wxT("bug in ScrollLastTo") );
1255 }
1256
1257 // ----------------------------------------------------------------------------
1258 // wxNotebook sizing/moving
1259 // ----------------------------------------------------------------------------
1260
1261 void wxNotebook::DoMoveWindow(int x, int y, int width, int height)
1262 {
1263     wxControl::DoMoveWindow(x, y, width, height);
1264
1265     // move the spin ctrl too (NOP if it doesn't exist)
1266     PositionSpinBtn();
1267 }
1268
1269 void wxNotebook::DoSetSize(int x, int y,
1270                            int width, int height,
1271                            int sizeFlags)
1272 {
1273     wxSize old_client_size = GetClientSize();
1274
1275     wxControl::DoSetSize(x, y, width, height, sizeFlags);
1276
1277     wxSize new_client_size = GetClientSize();
1278
1279     if (old_client_size != new_client_size)
1280         Relayout();
1281 }
1282
1283 // ----------------------------------------------------------------------------
1284 // wxNotebook input processing
1285 // ----------------------------------------------------------------------------
1286
1287 bool wxNotebook::PerformAction(const wxControlAction& action,
1288                                long numArg,
1289                                const wxString& strArg)
1290 {
1291     if ( action == wxACTION_NOTEBOOK_NEXT )
1292         SetSelection(GetNextPage(true));
1293     else if ( action == wxACTION_NOTEBOOK_PREV )
1294         SetSelection(GetNextPage(false));
1295     else if ( action == wxACTION_NOTEBOOK_GOTO )
1296         SetSelection((int)numArg);
1297     else
1298         return wxControl::PerformAction(action, numArg, strArg);
1299
1300     return true;
1301 }
1302
1303 /* static */
1304 wxInputHandler *wxNotebook::GetStdInputHandler(wxInputHandler *handlerDef)
1305 {
1306     static wxStdNotebookInputHandler s_handler(handlerDef);
1307
1308     return &s_handler;
1309 }
1310
1311 // ----------------------------------------------------------------------------
1312 // wxStdNotebookInputHandler
1313 // ----------------------------------------------------------------------------
1314
1315 wxStdNotebookInputHandler::wxStdNotebookInputHandler(wxInputHandler *inphand)
1316                          : wxStdInputHandler(inphand)
1317 {
1318 }
1319
1320 bool wxStdNotebookInputHandler::HandleKey(wxInputConsumer *consumer,
1321                                           const wxKeyEvent& event,
1322                                           bool pressed)
1323 {
1324     // ignore the key releases
1325     if ( pressed )
1326     {
1327         wxNotebook *notebook = wxStaticCast(consumer->GetInputWindow(), wxNotebook);
1328
1329         int page = 0;
1330         wxControlAction action;
1331         switch ( event.GetKeyCode() )
1332         {
1333             case WXK_UP:
1334                 if ( notebook->IsVertical() )
1335                     action = wxACTION_NOTEBOOK_PREV;
1336                 break;
1337
1338             case WXK_LEFT:
1339                 if ( !notebook->IsVertical() )
1340                     action = wxACTION_NOTEBOOK_PREV;
1341                 break;
1342
1343             case WXK_DOWN:
1344                 if ( notebook->IsVertical() )
1345                     action = wxACTION_NOTEBOOK_NEXT;
1346                 break;
1347
1348             case WXK_RIGHT:
1349                 if ( !notebook->IsVertical() )
1350                     action = wxACTION_NOTEBOOK_NEXT;
1351                 break;
1352
1353             case WXK_HOME:
1354                 action = wxACTION_NOTEBOOK_GOTO;
1355                 // page = 0; -- already has this value
1356                 break;
1357
1358             case WXK_END:
1359                 action = wxACTION_NOTEBOOK_GOTO;
1360                 page = notebook->GetPageCount() - 1;
1361                 break;
1362         }
1363
1364         if ( !action.IsEmpty() )
1365         {
1366             return consumer->PerformAction(action, page);
1367         }
1368     }
1369
1370     return wxStdInputHandler::HandleKey(consumer, event, pressed);
1371 }
1372
1373 bool wxStdNotebookInputHandler::HandleMouse(wxInputConsumer *consumer,
1374                                             const wxMouseEvent& event)
1375 {
1376     if ( event.ButtonDown(1) )
1377     {
1378         wxNotebook *notebook = wxStaticCast(consumer->GetInputWindow(), wxNotebook);
1379         int page = notebook->HitTest(event.GetPosition());
1380         if ( page != -1 )
1381         {
1382             consumer->PerformAction(wxACTION_NOTEBOOK_GOTO, page);
1383
1384             return false;
1385         }
1386     }
1387
1388     return wxStdInputHandler::HandleMouse(consumer, event);
1389 }
1390
1391 bool wxStdNotebookInputHandler::HandleMouseMove(wxInputConsumer *consumer,
1392                                                 const wxMouseEvent& event)
1393 {
1394     return wxStdInputHandler::HandleMouseMove(consumer, event);
1395 }
1396
1397 bool
1398 wxStdNotebookInputHandler::HandleFocus(wxInputConsumer *consumer,
1399                                        const wxFocusEvent& WXUNUSED(event))
1400 {
1401     HandleFocusChange(consumer);
1402
1403     return false;
1404 }
1405
1406 bool wxStdNotebookInputHandler::HandleActivation(wxInputConsumer *consumer,
1407                                                  bool WXUNUSED(activated))
1408 {
1409     // we react to the focus change in the same way as to the [de]activation
1410     HandleFocusChange(consumer);
1411
1412     return false;
1413 }
1414
1415 void wxStdNotebookInputHandler::HandleFocusChange(wxInputConsumer *consumer)
1416 {
1417     wxNotebook *notebook = wxStaticCast(consumer->GetInputWindow(), wxNotebook);
1418     notebook->RefreshCurrent();
1419 }
1420
1421 #endif // wxUSE_NOTEBOOK