src/univ/winuniv.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/univ/window.cpp
   3 // Purpose:     implementation of extra wxWindow methods for wxUniv port
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     06.08.00
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2000 SciTech Software, Inc. (www.scitechsoft.com)
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ===========================================================================
  13 // declarations
  14 // ===========================================================================
  15
  16 // ---------------------------------------------------------------------------
  17 // headers
  18 // ---------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #include "wx/window.h"
  28
  29 #ifndef WX_PRECOMP
  30     #include "wx/app.h"
  31     #include "wx/dcclient.h"
  32     #include "wx/dcmemory.h"
  33     #include "wx/event.h"
  34     #include "wx/scrolbar.h"
  35     #include "wx/menu.h"
  36     #include "wx/frame.h"
  37     #include "wx/log.h"
  38 #endif // WX_PRECOMP
  39
  40 #include "wx/univ/colschem.h"
  41 #include "wx/univ/renderer.h"
  42 #include "wx/univ/theme.h"
  43
  44 #if wxUSE_CARET
  45     #include "wx/caret.h"
  46 #endif // wxUSE_CARET
  47
  48 // turn Refresh() debugging on/off
  49 #define WXDEBUG_REFRESH
  50
  51 #ifndef __WXDEBUG__
  52     #undef WXDEBUG_REFRESH
  53 #endif
  54
  55 #if defined(WXDEBUG_REFRESH) && defined(__WXMSW__) && !defined(__WXMICROWIN__)
  56 #include "wx/msw/private.h"
  57 #endif
  58
  59 // ============================================================================
  60 // implementation
  61 // ============================================================================
  62
  63 // ----------------------------------------------------------------------------
  64 // event tables
  65 // ----------------------------------------------------------------------------
  66
  67 // we can't use wxWindowNative here as it won't be expanded inside the macro
  68 #if defined(__WXMSW__)
  69     IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowMSW)
  70 #elif defined(__WXGTK__)
  71     IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowGTK)
  72 #elif defined(__WXMGL__)
  73     IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowMGL)
  74 #elif defined(__WXDFB__)
  75     IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowDFB)
  76 #elif defined(__WXX11__)
  77     IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowX11)
  78 #elif defined(__WXPM__)
  79     IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowOS2)
  80 #endif
  81
  82 BEGIN_EVENT_TABLE(wxWindow, wxWindowNative)
  83     EVT_SIZE(wxWindow::OnSize)
  84
  85 #if wxUSE_ACCEL || wxUSE_MENUS
  86     EVT_KEY_DOWN(wxWindow::OnKeyDown)
  87 #endif // wxUSE_ACCEL
  88
  89 #if wxUSE_MENUS
  90     EVT_CHAR(wxWindow::OnChar)
  91     EVT_KEY_UP(wxWindow::OnKeyUp)
  92 #endif // wxUSE_MENUS
  93
  94     EVT_PAINT(wxWindow::OnPaint)
  95     EVT_NC_PAINT(wxWindow::OnNcPaint)
  96     EVT_ERASE_BACKGROUND(wxWindow::OnErase)
  97 END_EVENT_TABLE()
  98
  99 // ----------------------------------------------------------------------------
 100 // creation
 101 // ----------------------------------------------------------------------------
 102
 103 void wxWindow::Init()
 104 {
 105 #if wxUSE_SCROLLBAR
 106     m_scrollbarVert =
 107     m_scrollbarHorz = (wxScrollBar *)NULL;
 108 #endif // wxUSE_SCROLLBAR
 109
 110     m_isCurrent = false;
 111
 112     m_renderer = wxTheme::Get()->GetRenderer();
 113
 114     m_oldSize.x = wxDefaultCoord;
 115     m_oldSize.y = wxDefaultCoord;
 116 }
 117
 118 bool wxWindow::Create(wxWindow *parent,
 119                       wxWindowID id,
 120                       const wxPoint& pos,
 121                       const wxSize& size,
 122                       long style,
 123                       const wxString& name)
 124 {
 125     long actualStyle = style;
 126
 127     // FIXME: may need this on other platforms
 128 #ifdef __WXMSW__
 129     actualStyle &= ~wxVSCROLL;
 130     actualStyle &= ~wxHSCROLL;
 131 #endif
 132
 133     // we add wxCLIP_CHILDREN to get the same ("natural") behaviour under MSW
 134     // as under the other platforms
 135     if ( !wxWindowNative::Create(parent, id, pos, size,
 136                                  actualStyle | wxCLIP_CHILDREN,
 137                                  name) )
 138     {
 139         return false;
 140     }
 141
 142     // Set full style again, including those we didn't want present
 143     // when calling the base window Create().
 144     wxWindowBase::SetWindowStyleFlag(style);
 145
 146     // if we allow or should always have a vertical scrollbar, make it
 147     if ( style & wxVSCROLL || style & wxALWAYS_SHOW_SB )
 148     {
 149 #if wxUSE_TWO_WINDOWS
 150         SetInsertIntoMain( true );
 151 #endif
 152 #if wxUSE_SCROLLBAR
 153         m_scrollbarVert = new wxScrollBar(this, wxID_ANY,
 154                                           wxDefaultPosition, wxDefaultSize,
 155                                           wxSB_VERTICAL);
 156 #endif // wxUSE_SCROLLBAR
 157 #if wxUSE_TWO_WINDOWS
 158         SetInsertIntoMain( false );
 159 #endif
 160     }
 161
 162     // if we should allow a horizontal scrollbar, make it
 163     if ( style & wxHSCROLL )
 164     {
 165 #if wxUSE_TWO_WINDOWS
 166         SetInsertIntoMain( true );
 167 #endif
 168 #if wxUSE_SCROLLBAR
 169         m_scrollbarHorz = new wxScrollBar(this, wxID_ANY,
 170                                           wxDefaultPosition, wxDefaultSize,
 171                                           wxSB_HORIZONTAL);
 172 #endif // wxUSE_SCROLLBAR
 173 #if wxUSE_TWO_WINDOWS
 174         SetInsertIntoMain( false );
 175 #endif
 176     }
 177
 178 #if wxUSE_SCROLLBAR
 179     if (m_scrollbarHorz || m_scrollbarVert)
 180     {
 181         // position it/them
 182         PositionScrollbars();
 183     }
 184 #endif // wxUSE_SCROLLBAR
 185
 186     return true;
 187 }
 188
 189 wxWindow::~wxWindow()
 190 {
 191     m_isBeingDeleted = true;
 192
 193     // we have to destroy our children before we're destroyed because our
 194     // children suppose that we're of type wxWindow, not just wxWindowNative,
 195     // and so bad things may happen if they're deleted from the base class dtor
 196     // as by then we're not a wxWindow any longer and wxUniv-specific virtual
 197     // functions can't be called
 198     DestroyChildren();
 199 }
 200
 201 // ----------------------------------------------------------------------------
 202 // background pixmap
 203 // ----------------------------------------------------------------------------
 204
 205 void wxWindow::SetBackground(const wxBitmap& bitmap,
 206                               int alignment,
 207                               wxStretch stretch)
 208 {
 209     m_bitmapBg = bitmap;
 210     m_alignBgBitmap = alignment;
 211     m_stretchBgBitmap = stretch;
 212 }
 213
 214 const wxBitmap& wxWindow::GetBackgroundBitmap(int *alignment,
 215                                                wxStretch *stretch) const
 216 {
 217     if ( m_bitmapBg.Ok() )
 218     {
 219         if ( alignment )
 220             *alignment = m_alignBgBitmap;
 221         if ( stretch )
 222             *stretch = m_stretchBgBitmap;
 223     }
 224
 225     return m_bitmapBg;
 226 }
 227
 228 // ----------------------------------------------------------------------------
 229 // painting
 230 // ----------------------------------------------------------------------------
 231
 232 // the event handlers executed when the window must be repainted
 233 void wxWindow::OnNcPaint(wxNcPaintEvent& WXUNUSED(event))
 234 {
 235     if ( m_renderer )
 236     {
 237         // get the window rect
 238         wxRect rect(GetSize());
 239
 240 #if wxUSE_SCROLLBAR
 241         // if the scrollbars are outside the border, we must adjust the rect to
 242         // exclude them
 243         if ( !m_renderer->AreScrollbarsInsideBorder() )
 244         {
 245             wxScrollBar *scrollbar = GetScrollbar(wxVERTICAL);
 246             if ( scrollbar )
 247                 rect.width -= scrollbar->GetSize().x;
 248
 249             scrollbar = GetScrollbar(wxHORIZONTAL);
 250             if ( scrollbar )
 251                 rect.height -= scrollbar->GetSize().y;
 252         }
 253 #endif // wxUSE_SCROLLBAR
 254
 255         // get the DC and draw the border on it
 256         wxWindowDC dc(this);
 257         DoDrawBorder(dc, rect);
 258     }
 259 }
 260
 261 void wxWindow::OnPaint(wxPaintEvent& event)
 262 {
 263     if ( !m_renderer )
 264     {
 265         // it is a native control which paints itself
 266         event.Skip();
 267     }
 268     else
 269     {
 270         // get the DC to use and create renderer on it
 271         wxPaintDC dc(this);
 272         wxControlRenderer renderer(this, dc, m_renderer);
 273
 274         // draw the control
 275         DoDraw(&renderer);
 276     }
 277 }
 278
 279 // the event handler executed when the window background must be painted
 280 void wxWindow::OnErase(wxEraseEvent& event)
 281 {
 282     if ( !m_renderer )
 283     {
 284         event.Skip();
 285
 286         return;
 287     }
 288
 289     DoDrawBackground(*event.GetDC());
 290
 291 #if wxUSE_SCROLLBAR
 292     // if we have both scrollbars, we also have a square in the corner between
 293     // them which we must paint
 294     if ( m_scrollbarVert && m_scrollbarHorz )
 295     {
 296         wxSize size = GetSize();
 297         wxRect rectClient = GetClientRect(),
 298                rectBorder = m_renderer->GetBorderDimensions(GetBorder());
 299
 300         wxRect rectCorner;
 301         rectCorner.x = rectClient.GetRight() + 1;
 302         rectCorner.y = rectClient.GetBottom() + 1;
 303         rectCorner.SetRight(size.x - rectBorder.width);
 304         rectCorner.SetBottom(size.y - rectBorder.height);
 305
 306         if ( GetUpdateRegion().Contains(rectCorner) )
 307         {
 308             m_renderer->DrawScrollCorner(*event.GetDC(), rectCorner);
 309         }
 310     }
 311 #endif // wxUSE_SCROLLBAR
 312 }
 313
 314 bool wxWindow::DoDrawBackground(wxDC& dc)
 315 {
 316     wxRect rect;
 317
 318     wxSize size = GetSize();  // Why not GetClientSize() ?
 319     rect.x = 0;
 320     rect.y = 0;
 321     rect.width = size.x;
 322     rect.height = size.y;
 323
 324     wxWindow * const parent = GetParent();
 325     if ( HasTransparentBackground() && parent )
 326     {
 327         wxASSERT( !IsTopLevel() );
 328
 329         wxPoint pos = GetPosition();
 330
 331         AdjustForParentClientOrigin( pos.x, pos.y, 0 );
 332
 333         // Adjust DC logical origin
 334         wxCoord org_x, org_y, x, y;
 335         dc.GetLogicalOrigin( &org_x, &org_y );
 336         x = org_x + pos.x;
 337         y = org_y + pos.y;
 338         dc.SetLogicalOrigin( x, y );
 339
 340         // Adjust draw rect
 341         rect.x = pos.x;
 342         rect.y = pos.y;
 343
 344         // Let parent draw the background
 345         parent->EraseBackground( dc, rect );
 346
 347         // Restore DC logical origin
 348         dc.SetLogicalOrigin( org_x, org_y );
 349     }
 350     else
 351     {
 352         // Draw background ourselves
 353         EraseBackground( dc, rect );
 354     }
 355
 356     return true;
 357 }
 358
 359 void wxWindow::EraseBackground(wxDC& dc, const wxRect& rect)
 360 {
 361     if ( GetBackgroundBitmap().Ok() )
 362     {
 363         // Get the bitmap and the flags
 364         int alignment;
 365         wxStretch stretch;
 366         wxBitmap bmp = GetBackgroundBitmap(&alignment, &stretch);
 367         wxControlRenderer::DrawBitmap(dc, bmp, rect, alignment, stretch);
 368     }
 369     else
 370     {
 371         // Just fill it with bg colour if no bitmap
 372
 373         m_renderer->DrawBackground(dc, wxTHEME_BG_COLOUR(this),
 374                                    rect, GetStateFlags());
 375     }
 376 }
 377
 378 void wxWindow::DoDrawBorder(wxDC& dc, const wxRect& rect)
 379 {
 380     // draw outline unless the update region is enitrely inside it in which
 381     // case we don't need to do it
 382 #if 0 // doesn't seem to work, why?
 383     if ( wxRegion(rect).Contains(GetUpdateRegion().GetBox()) != wxInRegion )
 384 #endif
 385     {
 386         m_renderer->DrawBorder(dc, GetBorder(), rect, GetStateFlags());
 387     }
 388 }
 389
 390 void wxWindow::DoDraw(wxControlRenderer * WXUNUSED(renderer))
 391 {
 392 }
 393
 394 void wxWindow::Refresh(bool eraseBackground, const wxRect *rect)
 395 {
 396     wxRect rectClient; // the same rectangle in client coordinates
 397     wxPoint origin = GetClientAreaOrigin();
 398
 399     wxSize size = GetClientSize();
 400
 401     if ( rect )
 402     {
 403         // the rectangle passed as argument is in client coordinates
 404         rectClient = *rect;
 405
 406         // don't refresh anything beyond the client area (scrollbars for
 407         // example)
 408         if ( rectClient.GetRight() > size.x )
 409             rectClient.SetRight(size.x);
 410         if ( rectClient.GetBottom() > size.y )
 411             rectClient.SetBottom(size.y);
 412
 413     }
 414     else // refresh the entire client area
 415     {
 416         // x,y is already set to 0 by default
 417         rectClient.SetSize(size);
 418     }
 419
 420     // convert refresh rectangle to window coordinates:
 421     wxRect rectWin(rectClient);
 422     rectWin.Offset(origin);
 423
 424     // debugging helper
 425 #ifdef WXDEBUG_REFRESH
 426     static bool s_refreshDebug = false;
 427     if ( s_refreshDebug )
 428     {
 429         wxWindowDC dc(this);
 430         dc.SetBrush(*wxCYAN_BRUSH);
 431         dc.SetPen(*wxTRANSPARENT_PEN);
 432         dc.DrawRectangle(rectWin);
 433
 434         // under Unix we use "--sync" X option for this
 435         #if defined(__WXMSW__) && !defined(__WXMICROWIN__)
 436             ::GdiFlush();
 437             ::Sleep(200);
 438         #endif // __WXMSW__
 439     }
 440 #endif // WXDEBUG_REFRESH
 441
 442     wxWindowNative::Refresh(eraseBackground, &rectWin);
 443
 444     // Refresh all sub controls if any.
 445     wxWindowList& children = GetChildren();
 446     for ( wxWindowList::iterator i = children.begin(); i != children.end(); ++i )
 447     {
 448         wxWindow *child = *i;
 449         // only refresh subcontrols if they are visible:
 450         if ( child->IsTopLevel() || !child->IsShown() || child->IsFrozen() )
 451             continue;
 452
 453         // ...and when the subcontrols are in the update region:
 454         wxRect childrect(child->GetRect());
 455         childrect.Intersect(rectClient);
 456         if ( childrect.IsEmpty() )
 457             continue;
 458
 459         // refresh the subcontrol now:
 460         childrect.Offset(-child->GetPosition());
 461         // NB: We must call wxWindowNative version because we need to refresh
 462         //     the entire control, not just its client area, and this is why we
 463         //     don't account for child client area origin here neither. Also
 464         //     note that we don't pass eraseBackground to the child, but use
 465         //     true instead: this is because we can't be sure that
 466         //     eraseBackground=false is safe for children as well and not only
 467         //     for the parent.
 468         child->wxWindowNative::Refresh(eraseBackground, &childrect);
 469     }
 470 }
 471
 472 // ----------------------------------------------------------------------------
 473 // state flags
 474 // ----------------------------------------------------------------------------
 475
 476 bool wxWindow::Enable(bool enable)
 477 {
 478     if ( !wxWindowNative::Enable(enable) )
 479         return false;
 480
 481     // disabled window can't keep focus
 482     if ( FindFocus() == this && GetParent() != NULL )
 483     {
 484         GetParent()->SetFocus();
 485     }
 486
 487     if ( m_renderer )
 488     {
 489         // a window with renderer is drawn by ourselves and it has to be
 490         // refreshed to reflect its new status
 491         Refresh();
 492     }
 493
 494     return true;
 495 }
 496
 497 bool wxWindow::IsFocused() const
 498 {
 499     return FindFocus() == this;
 500 }
 501
 502 bool wxWindow::IsPressed() const
 503 {
 504     return false;
 505 }
 506
 507 bool wxWindow::IsDefault() const
 508 {
 509     return false;
 510 }
 511
 512 bool wxWindow::IsCurrent() const
 513 {
 514     return m_isCurrent;
 515 }
 516
 517 bool wxWindow::SetCurrent(bool doit)
 518 {
 519     if ( doit == m_isCurrent )
 520         return false;
 521
 522     m_isCurrent = doit;
 523
 524     if ( CanBeHighlighted() )
 525         Refresh();
 526
 527     return true;
 528 }
 529
 530 int wxWindow::GetStateFlags() const
 531 {
 532     int flags = 0;
 533     if ( !IsEnabled() )
 534         flags |= wxCONTROL_DISABLED;
 535
 536     // the following states are only possible if our application is active - if
 537     // it is not, even our default/focused controls shouldn't appear as such
 538     if ( wxTheApp->IsActive() )
 539     {
 540         if ( IsCurrent() )
 541             flags |= wxCONTROL_CURRENT;
 542         if ( IsFocused() )
 543             flags |= wxCONTROL_FOCUSED;
 544         if ( IsPressed() )
 545             flags |= wxCONTROL_PRESSED;
 546         if ( IsDefault() )
 547             flags |= wxCONTROL_ISDEFAULT;
 548     }
 549
 550     return flags;
 551 }
 552
 553 // ----------------------------------------------------------------------------
 554 // size
 555 // ----------------------------------------------------------------------------
 556
 557 void wxWindow::OnSize(wxSizeEvent& event)
 558 {
 559     event.Skip();
 560
 561 #if wxUSE_SCROLLBAR
 562     if ( m_scrollbarVert || m_scrollbarHorz )
 563     {
 564         PositionScrollbars();
 565     }
 566 #endif // wxUSE_SCROLLBAR
 567
 568 #if 0   // ndef __WXMSW__
 569     // Refresh the area (strip) previously occupied by the border
 570
 571     if ( !HasFlag(wxFULL_REPAINT_ON_RESIZE) && IsShown() )
 572     {
 573         // This code assumes that wxSizeEvent.GetSize() returns
 574         // the area of the entire window, not just the client
 575         // area.
 576         wxSize newSize = event.GetSize();
 577
 578         if (m_oldSize.x == wxDefaultCoord && m_oldSize.y == wxDefaultCoord)
 579         {
 580             m_oldSize = newSize;
 581             return;
 582         }
 583
 584         if (HasFlag( wxSIMPLE_BORDER ))
 585         {
 586             if (newSize.y > m_oldSize.y)
 587             {
 588                 wxRect rect;
 589                 rect.x = 0;
 590                 rect.width = m_oldSize.x;
 591                 rect.y = m_oldSize.y-2;
 592                 rect.height = 1;
 593                 Refresh( true, &rect );
 594             }
 595             else if (newSize.y < m_oldSize.y)
 596             {
 597                 wxRect rect;
 598                 rect.y = newSize.y;
 599                 rect.x = 0;
 600                 rect.height = 1;
 601                 rect.width = newSize.x;
 602                 wxWindowNative::Refresh( true, &rect );
 603             }
 604
 605             if (newSize.x > m_oldSize.x)
 606             {
 607                 wxRect rect;
 608                 rect.y = 0;
 609                 rect.height = m_oldSize.y;
 610                 rect.x = m_oldSize.x-2;
 611                 rect.width = 1;
 612                 Refresh( true, &rect );
 613             }
 614             else if (newSize.x < m_oldSize.x)
 615             {
 616                 wxRect rect;
 617                 rect.x = newSize.x;
 618                 rect.y = 0;
 619                 rect.width = 1;
 620                 rect.height = newSize.y;
 621                 wxWindowNative::Refresh( true, &rect );
 622             }
 623         }
 624         else
 625         if (HasFlag( wxSUNKEN_BORDER ) || HasFlag( wxRAISED_BORDER ))
 626         {
 627             if (newSize.y > m_oldSize.y)
 628             {
 629                 wxRect rect;
 630                 rect.x = 0;
 631                 rect.width = m_oldSize.x;
 632                 rect.y = m_oldSize.y-4;
 633                 rect.height = 2;
 634                 Refresh( true, &rect );
 635             }
 636             else if (newSize.y < m_oldSize.y)
 637             {
 638                 wxRect rect;
 639                 rect.y = newSize.y;
 640                 rect.x = 0;
 641                 rect.height = 2;
 642                 rect.width = newSize.x;
 643                 wxWindowNative::Refresh( true, &rect );
 644             }
 645
 646             if (newSize.x > m_oldSize.x)
 647             {
 648                 wxRect rect;
 649                 rect.y = 0;
 650                 rect.height = m_oldSize.y;
 651                 rect.x = m_oldSize.x-4;
 652                 rect.width = 2;
 653                 Refresh( true, &rect );
 654             }
 655             else if (newSize.x < m_oldSize.x)
 656             {
 657                 wxRect rect;
 658                 rect.x = newSize.x;
 659                 rect.y = 0;
 660                 rect.width = 2;
 661                 rect.height = newSize.y;
 662                 wxWindowNative::Refresh( true, &rect );
 663             }
 664         }
 665
 666         m_oldSize = newSize;
 667     }
 668 #endif
 669 }
 670
 671 wxSize wxWindow::DoGetBestSize() const
 672 {
 673     return AdjustSize(DoGetBestClientSize());
 674 }
 675
 676 wxSize wxWindow::DoGetBestClientSize() const
 677 {
 678     return wxWindowNative::DoGetBestSize();
 679 }
 680
 681 wxSize wxWindow::AdjustSize(const wxSize& size) const
 682 {
 683     wxSize sz = size;
 684     if ( m_renderer )
 685         m_renderer->AdjustSize(&sz, this);
 686     return sz;
 687 }
 688
 689 wxPoint wxWindow::GetClientAreaOrigin() const
 690 {
 691     wxPoint pt = wxWindowBase::GetClientAreaOrigin();
 692
 693 #if wxUSE_TWO_WINDOWS
 694 #else
 695     if ( m_renderer )
 696         pt += m_renderer->GetBorderDimensions(GetBorder()).GetPosition();
 697 #endif
 698
 699     return pt;
 700 }
 701
 702 void wxWindow::DoGetClientSize(int *width, int *height) const
 703 {
 704     // if it is a native window, we assume it handles the scrollbars itself
 705     // too - and if it doesn't, there is not much we can do
 706     if ( !m_renderer )
 707     {
 708         wxWindowNative::DoGetClientSize(width, height);
 709
 710         return;
 711     }
 712
 713     int w, h;
 714     wxWindowNative::DoGetClientSize(&w, &h);
 715
 716     // we assume that the scrollbars are positioned correctly (by a previous
 717     // call to PositionScrollbars()) here
 718
 719     wxRect rectBorder;
 720     if ( m_renderer )
 721         rectBorder = m_renderer->GetBorderDimensions(GetBorder());
 722
 723     if ( width )
 724     {
 725 #if wxUSE_SCROLLBAR
 726         // in any case, take account of the scrollbar
 727         if ( m_scrollbarVert )
 728             w -= m_scrollbarVert->GetSize().x;
 729 #endif // wxUSE_SCROLLBAR
 730
 731         // account for the left and right borders
 732         *width = w - rectBorder.x - rectBorder.width;
 733
 734         // we shouldn't return invalid width
 735         if ( *width < 0 )
 736             *width = 0;
 737     }
 738
 739     if ( height )
 740     {
 741 #if wxUSE_SCROLLBAR
 742         if ( m_scrollbarHorz )
 743             h -= m_scrollbarHorz->GetSize().y;
 744 #endif // wxUSE_SCROLLBAR
 745
 746         *height = h - rectBorder.y - rectBorder.height;
 747
 748         // we shouldn't return invalid height
 749         if ( *height < 0 )
 750             *height = 0;
 751     }
 752 }
 753
 754 void wxWindow::DoSetClientSize(int width, int height)
 755 {
 756     // take into account the borders
 757     wxRect rectBorder = m_renderer->GetBorderDimensions(GetBorder());
 758     width += rectBorder.x;
 759     height += rectBorder.y;
 760
 761     // and the scrollbars (as they may be offset into the border, use the
 762     // scrollbar position, not size - this supposes that PositionScrollbars()
 763     // had been called before)
 764     wxSize size = GetSize();
 765 #if wxUSE_SCROLLBAR
 766     if ( m_scrollbarVert )
 767         width += size.x - m_scrollbarVert->GetPosition().x;
 768 #endif // wxUSE_SCROLLBAR
 769     width += rectBorder.width;
 770
 771 #if wxUSE_SCROLLBAR
 772     if ( m_scrollbarHorz )
 773         height += size.y - m_scrollbarHorz->GetPosition().y;
 774 #endif // wxUSE_SCROLLBAR
 775     height += rectBorder.height;
 776
 777     wxWindowNative::DoSetClientSize(width, height);
 778 }
 779
 780 wxHitTest wxWindow::DoHitTest(wxCoord x, wxCoord y) const
 781 {
 782     wxHitTest ht = wxWindowNative::DoHitTest(x, y);
 783
 784 #if wxUSE_SCROLLBAR
 785     if ( ht == wxHT_WINDOW_INSIDE )
 786     {
 787         if ( m_scrollbarVert && x >= m_scrollbarVert->GetPosition().x )
 788         {
 789             // it can still be changed below because it may also be the corner
 790             ht = wxHT_WINDOW_VERT_SCROLLBAR;
 791         }
 792
 793         if ( m_scrollbarHorz && y >= m_scrollbarHorz->GetPosition().y )
 794         {
 795             ht = ht == wxHT_WINDOW_VERT_SCROLLBAR ? wxHT_WINDOW_CORNER
 796                                                   : wxHT_WINDOW_HORZ_SCROLLBAR;
 797         }
 798     }
 799 #endif // wxUSE_SCROLLBAR
 800
 801     return ht;
 802 }
 803
 804 // ----------------------------------------------------------------------------
 805 // scrolling: we implement it entirely ourselves except for ScrollWindow()
 806 // function which is supposed to be (efficiently) implemented by the native
 807 // window class
 808 // ----------------------------------------------------------------------------
 809
 810 void wxWindow::RefreshScrollbars()
 811 {
 812 #if wxUSE_SCROLLBAR
 813     if ( m_scrollbarHorz )
 814         m_scrollbarHorz->Refresh();
 815
 816     if ( m_scrollbarVert )
 817         m_scrollbarVert->Refresh();
 818 #endif // wxUSE_SCROLLBAR
 819 }
 820
 821 void wxWindow::PositionScrollbars()
 822 {
 823 #if wxUSE_SCROLLBAR
 824     // do not use GetClientSize/Rect as it relies on the scrollbars being
 825     // correctly positioned
 826
 827     wxSize size = GetSize();
 828     wxBorder border = GetBorder();
 829     wxRect rectBorder = m_renderer->GetBorderDimensions(border);
 830     bool inside = m_renderer->AreScrollbarsInsideBorder();
 831
 832     int height = m_scrollbarHorz ? m_scrollbarHorz->GetSize().y : 0;
 833     int width = m_scrollbarVert ? m_scrollbarVert->GetSize().x : 0;
 834
 835     wxRect rectBar;
 836     if ( m_scrollbarVert )
 837     {
 838         rectBar.x = size.x - width;
 839         if ( inside )
 840            rectBar.x -= rectBorder.width;
 841         rectBar.width = width;
 842         rectBar.y = 0;
 843         if ( inside )
 844             rectBar.y += rectBorder.y;
 845         rectBar.height = size.y - height;
 846         if ( inside )
 847             rectBar.height -= rectBorder.y + rectBorder.height;
 848
 849         m_scrollbarVert->SetSize(rectBar, wxSIZE_NO_ADJUSTMENTS);
 850     }
 851
 852     if ( m_scrollbarHorz )
 853     {
 854         rectBar.y = size.y - height;
 855         if ( inside )
 856             rectBar.y -= rectBorder.height;
 857         rectBar.height = height;
 858         rectBar.x = 0;
 859         if ( inside )
 860             rectBar.x += rectBorder.x;
 861         rectBar.width = size.x - width;
 862         if ( inside )
 863             rectBar.width -= rectBorder.x + rectBorder.width;
 864
 865         m_scrollbarHorz->SetSize(rectBar, wxSIZE_NO_ADJUSTMENTS);
 866     }
 867
 868     RefreshScrollbars();
 869 #endif // wxUSE_SCROLLBAR
 870 }
 871
 872 void wxWindow::SetScrollbar(int orient,
 873                             int pos,
 874                             int pageSize,
 875                             int range,
 876                             bool refresh)
 877 {
 878 #if wxUSE_SCROLLBAR
 879     wxASSERT_MSG( pageSize <= range,
 880                     _T("page size can't be greater than range") );
 881
 882     bool hasClientSizeChanged = false;
 883     wxScrollBar *scrollbar = GetScrollbar(orient);
 884     if ( range && (pageSize < range) )
 885     {
 886         if ( !scrollbar )
 887         {
 888             // create it
 889 #if wxUSE_TWO_WINDOWS
 890             SetInsertIntoMain( true );
 891 #endif
 892             scrollbar = new wxScrollBar(this, wxID_ANY,
 893                                         wxDefaultPosition, wxDefaultSize,
 894                                         orient & wxVERTICAL ? wxSB_VERTICAL
 895                                                             : wxSB_HORIZONTAL);
 896 #if wxUSE_TWO_WINDOWS
 897             SetInsertIntoMain( false );
 898 #endif
 899             if ( orient & wxVERTICAL )
 900                 m_scrollbarVert = scrollbar;
 901             else
 902                 m_scrollbarHorz = scrollbar;
 903
 904             // the client area diminished as we created a scrollbar
 905             hasClientSizeChanged = true;
 906
 907             PositionScrollbars();
 908         }
 909         else if ( GetWindowStyle() & wxALWAYS_SHOW_SB )
 910         {
 911             // we might have disabled it before
 912             scrollbar->Enable();
 913         }
 914
 915         scrollbar->SetScrollbar(pos, pageSize, range, pageSize, refresh);
 916     }
 917     else // no range means no scrollbar
 918     {
 919         if ( scrollbar )
 920         {
 921             // wxALWAYS_SHOW_SB only applies to the vertical scrollbar
 922             if ( (orient & wxVERTICAL) && (GetWindowStyle() & wxALWAYS_SHOW_SB) )
 923             {
 924                 // just disable the scrollbar
 925                 scrollbar->SetScrollbar(pos, pageSize, range, pageSize, refresh);
 926                 scrollbar->Disable();
 927             }
 928             else // really remove the scrollbar
 929             {
 930                 delete scrollbar;
 931
 932                 if ( orient & wxVERTICAL )
 933                     m_scrollbarVert = NULL;
 934                 else
 935                     m_scrollbarHorz = NULL;
 936
 937                 // the client area increased as we removed a scrollbar
 938                 hasClientSizeChanged = true;
 939
 940                 // the size of the remaining scrollbar must be adjusted
 941                 if ( m_scrollbarHorz || m_scrollbarVert )
 942                 {
 943                     PositionScrollbars();
 944                 }
 945             }
 946         }
 947     }
 948
 949     // give the window a chance to relayout
 950     if ( hasClientSizeChanged )
 951     {
 952 #if wxUSE_TWO_WINDOWS
 953         wxWindowNative::SetSize( GetSize() );
 954 #else
 955         wxSizeEvent event(GetSize());
 956         (void)GetEventHandler()->ProcessEvent(event);
 957 #endif
 958     }
 959 #else
 960     wxUnusedVar(orient);
 961     wxUnusedVar(pos);
 962     wxUnusedVar(pageSize);
 963     wxUnusedVar(range);
 964     wxUnusedVar(refresh);
 965 #endif // wxUSE_SCROLLBAR
 966 }
 967
 968 void wxWindow::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
 969 {
 970 #if wxUSE_SCROLLBAR
 971     wxScrollBar *scrollbar = GetScrollbar(orient);
 972
 973     if (scrollbar)
 974         scrollbar->SetThumbPosition(pos);
 975
 976     // VZ: I think we can safely ignore this as we always refresh it
 977     //     automatically whenever the value chanegs
 978 #if 0
 979     if ( refresh )
 980         Refresh();
 981 #endif
 982 #else
 983     wxUnusedVar(orient);
 984     wxUnusedVar(pos);
 985 #endif // wxUSE_SCROLLBAR
 986 }
 987
 988 int wxWindow::GetScrollPos(int orient) const
 989 {
 990 #if wxUSE_SCROLLBAR
 991     wxScrollBar *scrollbar = GetScrollbar(orient);
 992     return scrollbar ? scrollbar->GetThumbPosition() : 0;
 993 #else
 994     wxUnusedVar(orient);
 995     return 0;
 996 #endif // wxUSE_SCROLLBAR
 997 }
 998
 999 int wxWindow::GetScrollThumb(int orient) const
1000 {
1001 #if wxUSE_SCROLLBAR
1002     wxScrollBar *scrollbar = GetScrollbar(orient);
1003     return scrollbar ? scrollbar->GetThumbSize() : 0;
1004 #else
1005     wxUnusedVar(orient);
1006     return 0;
1007 #endif // wxUSE_SCROLLBAR
1008 }
1009
1010 int wxWindow::GetScrollRange(int orient) const
1011 {
1012 #if wxUSE_SCROLLBAR
1013     wxScrollBar *scrollbar = GetScrollbar(orient);
1014     return scrollbar ? scrollbar->GetRange() : 0;
1015 #else
1016     wxUnusedVar(orient);
1017     return 0;
1018 #endif // wxUSE_SCROLLBAR
1019 }
1020
1021 void wxWindow::ScrollWindow(int dx, int dy, const wxRect *rect)
1022 {
1023     // use native scrolling when available and do it in generic way
1024     // otherwise:
1025 #ifdef __WXX11__
1026
1027     wxWindowNative::ScrollWindow(dx, dy, rect);
1028
1029 #else // !wxX11
1030
1031     // before scrolling it, ensure that we don't have any unpainted areas
1032     Update();
1033
1034     wxRect r;
1035
1036     if ( dx )
1037     {
1038         r = ScrollNoRefresh(dx, 0, rect);
1039         Refresh(true /* erase bkgnd */, &r);
1040     }
1041
1042     if ( dy )
1043     {
1044         r = ScrollNoRefresh(0, dy, rect);
1045         Refresh(true /* erase bkgnd */, &r);
1046     }
1047
1048     // scroll children accordingly:
1049     wxPoint offset(dx, dy);
1050
1051     for (wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1052          node; node = node->GetNext())
1053     {
1054         wxWindow *child = node->GetData();
1055 #if wxUSE_SCROLLBAR
1056         if ( child == m_scrollbarVert || child == m_scrollbarHorz )
1057             continue;
1058 #endif // wxUSE_SCROLLBAR
1059
1060         // VS: Scrolling children has non-trivial semantics. If rect=NULL then
1061         //     it is easy: we scroll all children. Otherwise it gets
1062         //     complicated:
1063         //       1. if scrolling in one direction only, scroll only
1064         //          those children that intersect shaft defined by the rectangle
1065         //          and scrolling direction
1066         //       2. if scrolling in both axes, scroll all children
1067
1068         if ( rect && (dx * dy == 0 /* moving in only one of x, y axis */) )
1069         {
1070             wxRect childRect = child->GetRect();
1071             if ( dx == 0 && (childRect.GetLeft() <= rect->GetRight() ||
1072                              childRect.GetRight() >= rect->GetLeft()) )
1073             {
1074                 child->Move(child->GetPosition() + offset);
1075             }
1076             else if ( dy == 0 && (childRect.GetTop() <= rect->GetBottom() ||
1077                                   childRect.GetBottom() >= rect->GetTop()) )
1078             {
1079                 child->Move(child->GetPosition() + offset);
1080             }
1081         }
1082         else
1083         {
1084             child->Move(child->GetPosition() + offset);
1085         }
1086     }
1087 #endif // wxX11/!wxX11
1088 }
1089
1090 wxRect wxWindow::ScrollNoRefresh(int dx, int dy, const wxRect *rectTotal)
1091 {
1092     wxASSERT_MSG( !dx || !dy, _T("can't be used for diag scrolling") );
1093
1094     // the rect to refresh (which we will calculate)
1095     wxRect rect;
1096
1097     if ( !dx && !dy )
1098     {
1099         // nothing to do
1100         return rect;
1101     }
1102
1103     // calculate the part of the window which we can just redraw in the new
1104     // location
1105     wxSize sizeTotal = rectTotal ? rectTotal->GetSize() : GetClientSize();
1106
1107     wxLogTrace(_T("scroll"), _T("rect is %dx%d, scroll by %d, %d"),
1108                sizeTotal.x, sizeTotal.y, dx, dy);
1109
1110     // the initial and end point of the region we move in client coords
1111     wxPoint ptSource, ptDest;
1112     if ( rectTotal )
1113     {
1114         ptSource = rectTotal->GetPosition();
1115         ptDest = rectTotal->GetPosition();
1116     }
1117
1118     // the size of this region
1119     wxSize size;
1120     size.x = sizeTotal.x - abs(dx);
1121     size.y = sizeTotal.y - abs(dy);
1122     if ( size.x <= 0 || size.y <= 0 )
1123     {
1124         // just redraw everything as nothing of the displayed image will stay
1125         wxLogTrace(_T("scroll"), _T("refreshing everything"));
1126
1127         rect = rectTotal ? *rectTotal : wxRect(0, 0, sizeTotal.x, sizeTotal.y);
1128     }
1129     else // move the part which doesn't change to the new location
1130     {
1131         // note that when we scroll the canvas in some direction we move the
1132         // block which doesn't need to be refreshed in the opposite direction
1133
1134         if ( dx < 0 )
1135         {
1136             // scroll to the right, move to the left
1137             ptSource.x -= dx;
1138         }
1139         else
1140         {
1141             // scroll to the left, move to the right
1142             ptDest.x += dx;
1143         }
1144
1145         if ( dy < 0 )
1146         {
1147             // scroll down, move up
1148             ptSource.y -= dy;
1149         }
1150         else
1151         {
1152             // scroll up, move down
1153             ptDest.y += dy;
1154         }
1155
1156 #if wxUSE_CARET
1157         // we need to hide the caret before moving or it will erase itself at
1158         // the wrong (old) location
1159         wxCaret *caret = GetCaret();
1160         if ( caret )
1161             caret->Hide();
1162 #endif // wxUSE_CARET
1163
1164         // do move
1165         wxClientDC dc(this);
1166         wxBitmap bmp(size.x, size.y);
1167         wxMemoryDC dcMem;
1168         dcMem.SelectObject(bmp);
1169
1170         dcMem.Blit(wxPoint(0,0), size, &dc, ptSource
1171 #if defined(__WXGTK__) && !defined(wxHAS_WORKING_GTK_DC_BLIT)
1172                 + GetClientAreaOrigin()
1173 #endif // broken wxGTK wxDC::Blit
1174                   );
1175         dc.Blit(ptDest, size, &dcMem, wxPoint(0,0));
1176
1177         wxLogTrace(_T("scroll"),
1178                    _T("Blit: (%d, %d) of size %dx%d -> (%d, %d)"),
1179                    ptSource.x, ptSource.y,
1180                    size.x, size.y,
1181                    ptDest.x, ptDest.y);
1182
1183         // and now repaint the uncovered area
1184
1185         // FIXME: We repaint the intersection of these rectangles twice - is
1186         //        it bad? I don't think so as it is rare to scroll the window
1187         //        diagonally anyhow and so adding extra logic to compute
1188         //        rectangle intersection is probably not worth the effort
1189
1190         rect.x = ptSource.x;
1191         rect.y = ptSource.y;
1192
1193         if ( dx )
1194         {
1195             if ( dx < 0 )
1196             {
1197                 // refresh the area along the right border
1198                 rect.x += size.x + dx;
1199                 rect.width = -dx;
1200             }
1201             else
1202             {
1203                 // refresh the area along the left border
1204                 rect.width = dx;
1205             }
1206
1207             rect.height = sizeTotal.y;
1208
1209             wxLogTrace(_T("scroll"), _T("refreshing (%d, %d)-(%d, %d)"),
1210                        rect.x, rect.y,
1211                        rect.GetRight() + 1, rect.GetBottom() + 1);
1212         }
1213
1214         if ( dy )
1215         {
1216             if ( dy < 0 )
1217             {
1218                 // refresh the area along the bottom border
1219                 rect.y += size.y + dy;
1220                 rect.height = -dy;
1221             }
1222             else
1223             {
1224                 // refresh the area along the top border
1225                 rect.height = dy;
1226             }
1227
1228             rect.width = sizeTotal.x;
1229
1230             wxLogTrace(_T("scroll"), _T("refreshing (%d, %d)-(%d, %d)"),
1231                        rect.x, rect.y,
1232                        rect.GetRight() + 1, rect.GetBottom() + 1);
1233         }
1234
1235 #if wxUSE_CARET
1236         if ( caret )
1237             caret->Show();
1238 #endif // wxUSE_CARET
1239     }
1240
1241     return rect;
1242 }
1243
1244 // ----------------------------------------------------------------------------
1245 // accelerators and menu hot keys
1246 // ----------------------------------------------------------------------------
1247
1248 #if wxUSE_MENUS
1249     // the last window over which Alt was pressed (used by OnKeyUp)
1250     wxWindow *wxWindow::ms_winLastAltPress = NULL;
1251 #endif // wxUSE_MENUS
1252
1253 #if wxUSE_ACCEL || wxUSE_MENUS
1254
1255 void wxWindow::OnKeyDown(wxKeyEvent& event)
1256 {
1257 #if wxUSE_MENUS
1258     int key = event.GetKeyCode();
1259     if ( !event.ControlDown() && (key == WXK_ALT || key == WXK_F10) )
1260     {
1261         ms_winLastAltPress = this;
1262
1263         // it can't be an accel anyhow
1264         return;
1265     }
1266
1267     ms_winLastAltPress = NULL;
1268 #endif // wxUSE_MENUS
1269
1270 #if wxUSE_ACCEL
1271     for ( wxWindow *win = this; win; win = win->GetParent() )
1272     {
1273         int command = win->GetAcceleratorTable()->GetCommand(event);
1274         if ( command != -1 )
1275         {
1276             wxCommandEvent eventCmd(wxEVT_COMMAND_MENU_SELECTED, command);
1277             if ( win->GetEventHandler()->ProcessEvent(eventCmd) )
1278             {
1279                 // skip "event.Skip()" below
1280                 return;
1281             }
1282         }
1283
1284         if ( win->IsTopLevel() )
1285         {
1286             // try the frame menu bar
1287 #if wxUSE_MENUS
1288             wxFrame *frame = wxDynamicCast(win, wxFrame);
1289             if ( frame )
1290             {
1291                 wxMenuBar *menubar = frame->GetMenuBar();
1292                 if ( menubar && menubar->ProcessAccelEvent(event) )
1293                 {
1294                     // skip "event.Skip()" below
1295                     return;
1296                 }
1297             }
1298 #endif // wxUSE_MENUS
1299
1300             // if it wasn't in a menu, try to find a button
1301             if ( command != -1 )
1302             {
1303                 wxWindow* child = win->FindWindow(command);
1304                 if ( child && wxDynamicCast(child, wxButton) )
1305                 {
1306                     wxCommandEvent eventCmd(wxEVT_COMMAND_BUTTON_CLICKED, command);
1307                     eventCmd.SetEventObject(child);
1308                     if ( child->GetEventHandler()->ProcessEvent(eventCmd) )
1309                     {
1310                         // skip "event.Skip()" below
1311                         return;
1312                     }
1313                 }
1314             }
1315
1316             // don't propagate accels from the child frame to the parent one
1317             break;
1318         }
1319     }
1320 #endif // wxUSE_ACCEL
1321
1322     event.Skip();
1323 }
1324
1325 #endif // wxUSE_ACCEL
1326
1327 #if wxUSE_MENUS
1328
1329 wxMenuBar *wxWindow::GetParentFrameMenuBar() const
1330 {
1331     for ( const wxWindow *win = this; win; win = win->GetParent() )
1332     {
1333         if ( win->IsTopLevel() )
1334         {
1335             wxFrame *frame = wxDynamicCast(win, wxFrame);
1336             if ( frame )
1337             {
1338                 return frame->GetMenuBar();
1339             }
1340
1341             // don't look further - we don't want to return the menubar of the
1342             // parent frame
1343             break;
1344         }
1345     }
1346
1347     return NULL;
1348 }
1349
1350 void wxWindow::OnChar(wxKeyEvent& event)
1351 {
1352     if ( event.AltDown() && !event.ControlDown() )
1353     {
1354         int key = event.GetKeyCode();
1355
1356         wxMenuBar *menubar = GetParentFrameMenuBar();
1357         if ( menubar )
1358         {
1359             int item = menubar->FindNextItemForAccel(-1, key);
1360             if ( item != -1 )
1361             {
1362                 menubar->PopupMenu((size_t)item);
1363
1364                 // skip "event.Skip()" below
1365                 return;
1366             }
1367         }
1368     }
1369
1370     event.Skip();
1371 }
1372
1373 void wxWindow::OnKeyUp(wxKeyEvent& event)
1374 {
1375     int key = event.GetKeyCode();
1376     if ( !event.HasModifiers() && (key == WXK_ALT || key == WXK_F10) )
1377     {
1378         // only process Alt release specially if there were no other key
1379         // presses since Alt had been pressed and if both events happened in
1380         // the same window
1381         if ( ms_winLastAltPress == this )
1382         {
1383             wxMenuBar *menubar = GetParentFrameMenuBar();
1384             if ( menubar && this != menubar )
1385             {
1386                 menubar->SelectMenu(0);
1387             }
1388         }
1389     }
1390     else
1391     {
1392         event.Skip();
1393     }
1394
1395     // in any case reset it
1396     ms_winLastAltPress = NULL;
1397 }
1398
1399 #endif // wxUSE_MENUS
1400
1401 // ----------------------------------------------------------------------------
1402 // MSW-specific section
1403 // ----------------------------------------------------------------------------
1404
1405 #ifdef __WXMSW__
1406
1407 #include "wx/msw/private.h"
1408
1409 WXLRESULT wxWindow::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
1410 {
1411     if ( message == WM_NCHITTEST )
1412     {
1413         // the windows which contain the other windows should let the mouse
1414         // events through, otherwise a window inside a static box would
1415         // never get any events at all
1416         if ( IsStaticBox() )
1417         {
1418             return HTTRANSPARENT;
1419         }
1420     }
1421
1422     return wxWindowNative::MSWWindowProc(message, wParam, lParam);
1423 }
1424
1425 #endif // __WXMSW__