contrib/src/gizmos/splittree.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        splittree.cpp
   3 // Purpose:     Classes to achieve a remotely-scrolled tree in a splitter
   4 //              window that can be scrolled by a scrolled window higher in the
   5 //              hierarchy
   6 // Author:      Julian Smart
   7 // Modified by:
   8 // Created:     8/7/2000
   9 // RCS-ID:      $Id$
  10 // Copyright:   (c) Julian Smart
  11 // Licence:     wxWindows licence
  12 /////////////////////////////////////////////////////////////////////////////
  13
  14 // ============================================================================
  15 // declarations
  16 // ============================================================================
  17
  18 // ----------------------------------------------------------------------------
  19 // headers
  20 // ----------------------------------------------------------------------------
  21 #ifdef __GNUG__
  22     #pragma implementation "splittree.h"
  23 #endif
  24
  25 // For compilers that support precompilation, includes "wx/wx.h".
  26 #include "wx/wxprec.h"
  27
  28 #ifdef __BORLANDC__
  29     #pragma hdrstop
  30 #endif
  31
  32 // for all others, include the necessary headers (this file is usually all you
  33 // need because it includes almost all "standard" wxWidgets headers)
  34 #ifndef WX_PRECOMP
  35     #include "wx/wx.h"
  36 #endif
  37
  38 #ifdef __WXMSW__
  39 #include <windows.h>
  40 #include "wx/msw/winundef.h"
  41 #endif
  42
  43 #include "wx/gizmos/splittree.h"
  44 #include <math.h>
  45
  46 /*
  47  * wxRemotelyScrolledTreeCtrl
  48  */
  49
  50 #if USE_GENERIC_TREECTRL
  51 IMPLEMENT_CLASS(wxRemotelyScrolledTreeCtrl, wxGenericTreeCtrl)
  52 #else
  53 IMPLEMENT_CLASS(wxRemotelyScrolledTreeCtrl, wxTreeCtrl)
  54 #endif
  55
  56 #if USE_GENERIC_TREECTRL
  57 BEGIN_EVENT_TABLE(wxRemotelyScrolledTreeCtrl, wxGenericTreeCtrl)
  58 #else
  59 BEGIN_EVENT_TABLE(wxRemotelyScrolledTreeCtrl, wxTreeCtrl)
  60 #endif
  61     EVT_SIZE(wxRemotelyScrolledTreeCtrl::OnSize)
  62     EVT_PAINT(wxRemotelyScrolledTreeCtrl::OnPaint)
  63     EVT_TREE_ITEM_EXPANDED(wxID_ANY, wxRemotelyScrolledTreeCtrl::OnExpand)
  64     EVT_TREE_ITEM_COLLAPSED(wxID_ANY, wxRemotelyScrolledTreeCtrl::OnExpand)
  65     EVT_SCROLLWIN(wxRemotelyScrolledTreeCtrl::OnScroll)
  66 END_EVENT_TABLE()
  67
  68 wxRemotelyScrolledTreeCtrl::wxRemotelyScrolledTreeCtrl(
  69     wxWindow* parent, wxWindowID id, const wxPoint& pt,
  70     const wxSize& sz, long style)
  71     : wxTreeCtrl(parent, id, pt, sz, style & ~wxTR_ROW_LINES)
  72 {
  73     m_companionWindow = NULL;
  74
  75     // We draw the row lines ourself so they match what's done
  76     // by the companion window.  That is why the flag is turned
  77     // off above, so wxGenericTreeCtrl doesn't draw them in a
  78     // different colour.
  79     m_drawRowLines = (style & wxTR_ROW_LINES) != 0;
  80 }
  81
  82 wxRemotelyScrolledTreeCtrl::~wxRemotelyScrolledTreeCtrl()
  83 {
  84 }
  85
  86 void wxRemotelyScrolledTreeCtrl::HideVScrollbar()
  87 {
  88 #if defined(__WXMSW__)
  89 #if USE_GENERIC_TREECTRL
  90     if (!IsKindOf(CLASSINFO(wxGenericTreeCtrl)))
  91 #endif
  92     {
  93         ::ShowScrollBar((HWND) GetHWND(), SB_VERT, false);
  94     }
  95 #if USE_GENERIC_TREECTRL
  96     else
  97     {
  98         // Implicit in overriding SetScrollbars
  99     }
 100 #endif
 101 #endif
 102 }
 103
 104 // Number of pixels per user unit (0 or -1 for no scrollbar)
 105 // Length of virtual canvas in user units
 106 // Length of page in user units
 107 void wxRemotelyScrolledTreeCtrl::SetScrollbars(
 108                                                 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 109                                                   int pixelsPerUnitX, int pixelsPerUnitY,
 110                              int noUnitsX, int noUnitsY,
 111                              int xPos, int yPos,
 112                                                   bool noRefresh
 113                                                 #else
 114                                                   int WXUNUSED(pixelsPerUnitX), int WXUNUSED(pixelsPerUnitY),
 115                                                   int WXUNUSED(noUnitsX), int WXUNUSED(noUnitsY),
 116                                                   int WXUNUSED(xPos), int WXUNUSED(yPos),
 117                                                   bool WXUNUSED(noRefresh)
 118                                                 #endif
 119                                               )
 120 {
 121 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 122     if (IsKindOf(CLASSINFO(wxGenericTreeCtrl)))
 123     {
 124         wxGenericTreeCtrl* win = (wxGenericTreeCtrl*) this;
 125         win->wxGenericTreeCtrl::SetScrollbars(pixelsPerUnitX, pixelsPerUnitY, noUnitsX, 0, xPos, 0, /* noRefresh */ true);
 126
 127         wxScrolledWindow* scrolledWindow = GetScrolledWindow();
 128         if (scrolledWindow)
 129         {
 130             scrolledWindow->SetScrollbars(0, pixelsPerUnitY, 0, noUnitsY, 0, yPos, noRefresh);
 131         }
 132     }
 133 #endif
 134 }
 135
 136 // In case we're using the generic tree control.
 137 int wxRemotelyScrolledTreeCtrl::GetScrollPos(
 138                                              #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 139                                                  int orient
 140                                              #else
 141                                                  int WXUNUSED(orient)
 142                                              #endif
 143                                              ) const
 144 {
 145
 146 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 147     // this condition fixes extsitence of warning but
 148     wxScrolledWindow* scrolledWindow =
 149     // but GetScrolledWindow is still executed in case internally does something
 150 #endif
 151                                        GetScrolledWindow();
 152
 153 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 154     if (IsKindOf(CLASSINFO(wxGenericTreeCtrl)))
 155     {
 156         wxGenericTreeCtrl* win = (wxGenericTreeCtrl*) this;
 157
 158         if (orient == wxHORIZONTAL)
 159             return win->wxGenericTreeCtrl::GetScrollPos(orient);
 160         else
 161         {
 162             return scrolledWindow->GetScrollPos(orient);
 163         }
 164     }
 165 #endif
 166     return 0;
 167 }
 168
 169
 170 // In case we're using the generic tree control.
 171 // Get the view start
 172 void wxRemotelyScrolledTreeCtrl::GetViewStart(int *x, int *y) const
 173 {
 174     wxScrolledWindow* scrolledWindow = GetScrolledWindow();
 175
 176 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 177     if (IsKindOf(CLASSINFO(wxGenericTreeCtrl)))
 178     {
 179
 180         wxGenericTreeCtrl* win = (wxGenericTreeCtrl*) this;
 181         int x1, y1, x2, y2;
 182         win->wxGenericTreeCtrl::GetViewStart(& x1, & y1);
 183         * x = x1; * y = y1;
 184         if (!scrolledWindow)
 185             return;
 186
 187         scrolledWindow->GetViewStart(& x2, & y2);
 188         * y = y2;
 189     }
 190     else
 191 #endif
 192     {
 193         // x is wrong since the horizontal scrollbar is controlled by the
 194         // tree control, but we probably don't need it.
 195         scrolledWindow->GetViewStart(x, y);
 196     }
 197 }
 198
 199 // In case we're using the generic tree control.
 200 void wxRemotelyScrolledTreeCtrl::PrepareDC(
 201                                             #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 202                                                 wxDC& dc
 203                                             #else
 204                                                 wxDC& WXUNUSED(dc)
 205                                             #endif
 206                                            )
 207 {
 208 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 209     if (IsKindOf(CLASSINFO(wxGenericTreeCtrl)))
 210     {
 211         wxScrolledWindow* scrolledWindow = GetScrolledWindow();
 212
 213         wxGenericTreeCtrl* win = (wxGenericTreeCtrl*) this;
 214
 215         int startX, startY;
 216         GetViewStart(& startX, & startY);
 217
 218         int xppu1, yppu1, xppu2, yppu2;
 219         win->wxGenericTreeCtrl::GetScrollPixelsPerUnit(& xppu1, & yppu1);
 220         scrolledWindow->GetScrollPixelsPerUnit(& xppu2, & yppu2);
 221
 222         dc.SetDeviceOrigin( -startX * xppu1, -startY * yppu2 );
 223         // dc.SetUserScale( win->GetScaleX(), win->GetScaleY() );
 224     }
 225 #endif
 226 }
 227
 228 // Scroll to the given line (in scroll units where each unit is
 229 // the height of an item)
 230 void wxRemotelyScrolledTreeCtrl::ScrollToLine(int WXUNUSED(posHoriz), int posVert)
 231 {
 232 #ifdef __WXMSW__
 233 #if USE_GENERIC_TREECTRL
 234     if (!IsKindOf(CLASSINFO(wxGenericTreeCtrl)))
 235 #endif
 236     {
 237         UINT sbCode = SB_THUMBPOSITION;
 238         HWND vertScrollBar = 0;
 239         MSWDefWindowProc((WXUINT) WM_VSCROLL, MAKELONG(sbCode, posVert), (WXLPARAM) vertScrollBar);
 240     }
 241 #if USE_GENERIC_TREECTRL
 242     else
 243 #endif
 244 #endif
 245 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 246     {
 247         wxGenericTreeCtrl* win = (wxGenericTreeCtrl*) this;
 248         win->Refresh();
 249         /* Doesn't work yet because scrolling is ignored by Scroll
 250         int xppu, yppu;
 251         wxScrolledWindow* scrolledWindow = GetScrolledWindow();
 252         if (scrolledWindow)
 253         {
 254             scrolledWindow->GetScrollPixelsPerUnit(& xppu, & yppu);
 255             win->Scroll(-1, posVert*yppu);
 256         }
 257         */
 258     }
 259 #endif
 260 }
 261
 262 void wxRemotelyScrolledTreeCtrl::OnSize(wxSizeEvent& event)
 263 {
 264     HideVScrollbar();
 265     AdjustRemoteScrollbars();
 266     event.Skip();
 267 }
 268
 269 void wxRemotelyScrolledTreeCtrl::OnExpand(wxTreeEvent& event)
 270 {
 271     AdjustRemoteScrollbars();
 272     event.Skip();
 273
 274     // If we don't have this, we get some bits of lines still remaining
 275     if (event.GetEventType() == wxEVT_COMMAND_TREE_ITEM_COLLAPSED)
 276         Refresh();
 277
 278     // Pass on the event
 279     if (m_companionWindow)
 280         m_companionWindow->GetEventHandler()->ProcessEvent(event);
 281 }
 282
 283 void wxRemotelyScrolledTreeCtrl::OnPaint(wxPaintEvent& event)
 284 {
 285     wxPaintDC dc(this);
 286
 287     wxTreeCtrl::OnPaint(event);
 288
 289     if (! m_drawRowLines)
 290         return;
 291
 292     // Reset the device origin since it may have been set
 293     dc.SetDeviceOrigin(0, 0);
 294
 295     wxPen pen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT), 1, wxSOLID);
 296     dc.SetPen(pen);
 297     dc.SetBrush(* wxTRANSPARENT_BRUSH);
 298
 299     wxSize clientSize = GetClientSize();
 300     wxRect itemRect;
 301     wxTreeItemId h, lastH;
 302     for(h=GetFirstVisibleItem();h;h=GetNextVisible(h))
 303     {
 304         if (GetBoundingRect(h, itemRect))
 305         {
 306             int cy = itemRect.GetTop();
 307             dc.DrawLine(0, cy, clientSize.x, cy);
 308             lastH = h;
 309         }
 310     }
 311     if (lastH.IsOk() && GetBoundingRect(lastH, itemRect))
 312     {
 313         int cy = itemRect.GetBottom();
 314         dc.DrawLine(0, cy, clientSize.x, cy);
 315     }
 316 }
 317
 318
 319 // Adjust the containing wxScrolledWindow's scrollbars appropriately
 320 void wxRemotelyScrolledTreeCtrl::AdjustRemoteScrollbars()
 321 {
 322 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 323     if (IsKindOf(CLASSINFO(wxGenericTreeCtrl)))
 324     {
 325         // This is for the generic tree control.
 326         // It calls SetScrollbars which has been overridden
 327         // to adjust the parent scrolled window vertical
 328         // scrollbar.
 329         ((wxGenericTreeCtrl*) this)->AdjustMyScrollbars();
 330         return;
 331     }
 332     else
 333 #endif
 334     {
 335         // This is for the wxMSW tree control
 336         wxScrolledWindow* scrolledWindow = GetScrolledWindow();
 337         if (scrolledWindow)
 338         {
 339             wxRect itemRect;
 340             if (GetBoundingRect(GetFirstVisibleItem(), itemRect))
 341             {
 342                 // Actually, the real height seems to be 1 less than reported
 343                 // (e.g. 16 instead of 16)
 344                 int itemHeight = itemRect.GetHeight() - 1;
 345
 346                 int w, h;
 347                 GetClientSize(&w, &h);
 348
 349                 wxRect rect(0, 0, 0, 0);
 350                 CalcTreeSize(rect);
 351
 352                 double f = ((double) (rect.GetHeight()) / (double) itemHeight)  ;
 353                 int treeViewHeight = (int) ceil(f);
 354
 355                 int scrollPixelsPerLine = itemHeight;
 356                 int scrollPos = - (itemRect.y / itemHeight);
 357
 358                 scrolledWindow->SetScrollbars(0, scrollPixelsPerLine, 0, treeViewHeight, 0, scrollPos);
 359
 360                 // Ensure that when a scrollbar becomes hidden or visible,
 361                 // the contained window sizes are right.
 362                 // Problem: this is called too early (?)
 363                 wxSizeEvent event(scrolledWindow->GetSize(), scrolledWindow->GetId());
 364                 scrolledWindow->GetEventHandler()->ProcessEvent(event);
 365             }
 366         }
 367     }
 368 }
 369
 370
 371 // Calculate the area that contains both rectangles
 372 static wxRect CombineRectangles(const wxRect& rect1, const wxRect& rect2)
 373 {
 374     wxRect rect;
 375
 376     int right1 = rect1.GetRight();
 377     int bottom1 = rect1.GetBottom();
 378     int right2 = rect2.GetRight();
 379     int bottom2 = rect2.GetBottom();
 380
 381     wxPoint topLeft = wxPoint(wxMin(rect1.x, rect2.x), wxMin(rect1.y, rect2.y));
 382     wxPoint bottomRight = wxPoint(wxMax(right1, right2), wxMax(bottom1, bottom2));
 383
 384     rect.x = topLeft.x; rect.y = topLeft.y;
 385     rect.SetRight(bottomRight.x);
 386     rect.SetBottom(bottomRight.y);
 387
 388     return rect;
 389 }
 390
 391
 392 // Calculate the tree overall size so we can set the scrollbar
 393 // correctly
 394 void wxRemotelyScrolledTreeCtrl::CalcTreeSize(wxRect& rect)
 395 {
 396     CalcTreeSize(GetRootItem(), rect);
 397 }
 398
 399 void wxRemotelyScrolledTreeCtrl::CalcTreeSize(const wxTreeItemId& id, wxRect& rect)
 400 {
 401     // More efficient implementation would be to find the last item (but how?)
 402     // Q: is the bounding rect relative to the top of the virtual tree workspace
 403     // or the top of the window? How would we convert?
 404     wxRect itemSize;
 405     if (GetBoundingRect(id, itemSize))
 406     {
 407         rect = CombineRectangles(rect, itemSize);
 408     }
 409
 410     wxTreeItemIdValue cookie;
 411     wxTreeItemId childId = GetFirstChild(id, cookie);
 412     while (childId)
 413     {
 414         CalcTreeSize(childId, rect);
 415         childId = GetNextChild(childId, cookie);
 416     }
 417 }
 418
 419 // Find the scrolled window that contains this control
 420 wxScrolledWindow* wxRemotelyScrolledTreeCtrl::GetScrolledWindow() const
 421 {
 422     wxWindow* parent = wxWindow::GetParent();
 423     while (parent)
 424     {
 425         if (parent->IsKindOf(CLASSINFO(wxScrolledWindow)))
 426             return (wxScrolledWindow*) parent;
 427         parent = parent->GetParent();
 428     }
 429     return NULL;
 430 }
 431
 432 void wxRemotelyScrolledTreeCtrl::OnScroll(wxScrollWinEvent& event)
 433 {
 434     int orient = event.GetOrientation();
 435     if (orient == wxHORIZONTAL)
 436     {
 437         event.Skip();
 438         return;
 439     }
 440     wxScrolledWindow* scrollWin = GetScrolledWindow();
 441     if (!scrollWin)
 442         return;
 443
 444     int x, y;
 445     scrollWin->GetViewStart(& x, & y);
 446
 447     ScrollToLine(-1, y);
 448 }
 449
 450 /*
 451  * wxTreeCompanionWindow
 452  *
 453  * A window displaying values associated with tree control items.
 454  */
 455
 456 IMPLEMENT_CLASS(wxTreeCompanionWindow, wxWindow)
 457
 458 BEGIN_EVENT_TABLE(wxTreeCompanionWindow, wxWindow)
 459     EVT_PAINT(wxTreeCompanionWindow::OnPaint)
 460     EVT_SCROLLWIN(wxTreeCompanionWindow::OnScroll)
 461     EVT_TREE_ITEM_EXPANDED(-1, wxTreeCompanionWindow::OnExpand)
 462     EVT_TREE_ITEM_COLLAPSED(-1, wxTreeCompanionWindow::OnExpand)
 463 END_EVENT_TABLE()
 464
 465 wxTreeCompanionWindow::wxTreeCompanionWindow(wxWindow* parent, wxWindowID id,
 466       const wxPoint& pos,
 467       const wxSize& sz,
 468       long style):
 469     wxWindow(parent, id, pos, sz, style)
 470 {
 471     m_treeCtrl = NULL;
 472 }
 473
 474 void wxTreeCompanionWindow::DrawItem(wxDC& dc, wxTreeItemId id, const wxRect& rect)
 475 {
 476     // TEST CODE
 477 #if 1
 478     if (m_treeCtrl)
 479     {
 480         wxString text = m_treeCtrl->GetItemText(id);
 481         dc.SetTextForeground(* wxBLACK);
 482         dc.SetBackgroundMode(wxTRANSPARENT);
 483
 484         int textW, textH;
 485         dc.GetTextExtent(text, & textW, & textH);
 486
 487         int x = 5;
 488         int y = rect.GetY() + wxMax(0, (rect.GetHeight() - textH) / 2);
 489
 490         dc.DrawText(text, x, y);
 491     }
 492 #endif
 493 }
 494
 495 void wxTreeCompanionWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
 496 {
 497     wxPaintDC dc(this);
 498
 499     if (!m_treeCtrl)
 500         return;
 501
 502         wxPen pen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT), 1, wxSOLID);
 503     dc.SetPen(pen);
 504     dc.SetBrush(* wxTRANSPARENT_BRUSH);
 505     wxFont font(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 506     dc.SetFont(font);
 507
 508     wxSize clientSize = GetClientSize();
 509     wxRect itemRect;
 510     wxTreeItemId h, lastH;
 511     for(h=m_treeCtrl->GetFirstVisibleItem();h;h=m_treeCtrl->GetNextVisible(h))
 512     {
 513         if (m_treeCtrl->GetBoundingRect(h, itemRect))
 514         {
 515             int cy = itemRect.GetTop();
 516             wxRect drawItemRect(0, cy, clientSize.x, itemRect.GetHeight());
 517
 518             lastH = h;
 519
 520             // Draw the actual item
 521             DrawItem(dc, h, drawItemRect);
 522             dc.DrawLine(0, cy, clientSize.x, cy);
 523         }
 524     }
 525     if (lastH.IsOk() && m_treeCtrl->GetBoundingRect(lastH, itemRect))
 526     {
 527         int cy = itemRect.GetBottom();
 528         dc.DrawLine(0, cy, clientSize.x, cy);
 529     }
 530 }
 531
 532 void wxTreeCompanionWindow::OnScroll(wxScrollWinEvent& event)
 533 {
 534     int orient = event.GetOrientation();
 535     if (orient == wxHORIZONTAL)
 536     {
 537         event.Skip();
 538         return;
 539     }
 540     if (!m_treeCtrl)
 541         return;
 542
 543     // TODO: scroll the window physically instead of just refreshing.
 544     Refresh(true);
 545 }
 546
 547 void wxTreeCompanionWindow::OnExpand(wxTreeEvent& WXUNUSED(event))
 548 {
 549     // TODO: something more optimized than simply refresh the whole
 550     // window when the tree is expanded/collapsed. Tricky.
 551     Refresh();
 552 }
 553
 554 /*
 555  * wxThinSplitterWindow
 556  */
 557
 558 IMPLEMENT_CLASS(wxThinSplitterWindow, wxSplitterWindow)
 559
 560 BEGIN_EVENT_TABLE(wxThinSplitterWindow, wxSplitterWindow)
 561     EVT_SIZE(wxThinSplitterWindow::OnSize)
 562 END_EVENT_TABLE()
 563
 564 wxThinSplitterWindow::wxThinSplitterWindow(wxWindow* parent, wxWindowID id,
 565       const wxPoint& pos,
 566       const wxSize& sz,
 567       long style):
 568       wxSplitterWindow(parent, id, pos, sz, style)
 569 {
 570     wxColour faceColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
 571     m_facePen = new wxPen(faceColour, 1, wxSOLID);
 572     m_faceBrush = new wxBrush(faceColour, wxSOLID);
 573 }
 574
 575 wxThinSplitterWindow::~wxThinSplitterWindow()
 576 {
 577     delete m_facePen;
 578     delete m_faceBrush;
 579 }
 580
 581
 582 void wxThinSplitterWindow::SizeWindows()
 583 {
 584     // The client size may have changed inbetween
 585     // the sizing of the first window and the sizing of
 586     // the second. So repeat SizeWindows.
 587     wxSplitterWindow::SizeWindows();
 588     wxSplitterWindow::SizeWindows();
 589 }
 590
 591 // Tests for x, y over sash
 592 bool wxThinSplitterWindow::SashHitTest(int x, int y, int WXUNUSED(tolerance))
 593 {
 594     return wxSplitterWindow::SashHitTest(x, y, 4);
 595 }
 596
 597 void wxThinSplitterWindow::DrawSash(wxDC& dc)
 598 {
 599     if ( m_sashPosition == 0 || !m_windowTwo)
 600         return;
 601     if (GetWindowStyle() & wxSP_NOSASH)
 602         return;
 603
 604     int w, h;
 605     GetClientSize(&w, &h);
 606
 607     if ( m_splitMode == wxSPLIT_VERTICAL )
 608     {
 609         dc.SetPen(* m_facePen);
 610         dc.SetBrush(* m_faceBrush);
 611         int h1 = h-1;
 612         int y1 = 0;
 613         if ( (GetWindowStyleFlag() & wxSP_BORDER) != wxSP_BORDER && (GetWindowStyleFlag() & wxSP_3DBORDER) != wxSP_3DBORDER )
 614             h1 += 1; // Not sure why this is necessary...
 615         if ( (GetWindowStyleFlag() & wxSP_3DBORDER) == wxSP_3DBORDER)
 616         {
 617             y1 = 2; h1 -= 3;
 618         }
 619         dc.DrawRectangle(m_sashPosition, y1, GetSashSize(), h1);
 620     }
 621     else
 622     {
 623         dc.SetPen(* m_facePen);
 624         dc.SetBrush(* m_faceBrush);
 625         int w1 = w-1;
 626         int x1 = 0;
 627         if ( (GetWindowStyleFlag() & wxSP_BORDER) != wxSP_BORDER && (GetWindowStyleFlag() & wxSP_3DBORDER) != wxSP_3DBORDER )
 628             w1 ++;
 629         if ( (GetWindowStyleFlag() & wxSP_3DBORDER) == wxSP_3DBORDER)
 630         {
 631             x1 = 2; w1 -= 3;
 632         }
 633         dc.DrawRectangle(x1, m_sashPosition, w1, GetSashSize());
 634     }
 635
 636     dc.SetPen(wxNullPen);
 637     dc.SetBrush(wxNullBrush);
 638 }
 639
 640 void wxThinSplitterWindow::OnSize(wxSizeEvent& event)
 641 {
 642     wxSplitterWindow::OnSize(event);
 643 }
 644
 645 /*
 646  * wxSplitterScrolledWindow
 647  */
 648
 649 IMPLEMENT_CLASS(wxSplitterScrolledWindow, wxScrolledWindow)
 650
 651 BEGIN_EVENT_TABLE(wxSplitterScrolledWindow, wxScrolledWindow)
 652     EVT_SCROLLWIN(wxSplitterScrolledWindow::OnScroll)
 653     EVT_SIZE(wxSplitterScrolledWindow::OnSize)
 654 END_EVENT_TABLE()
 655
 656 wxSplitterScrolledWindow::wxSplitterScrolledWindow(wxWindow* parent, wxWindowID id,
 657       const wxPoint& pos,
 658       const wxSize& sz,
 659       long style):
 660       wxScrolledWindow(parent, id, pos, sz, style)
 661 {
 662 }
 663
 664 void wxSplitterScrolledWindow::OnSize(wxSizeEvent& WXUNUSED(event))
 665 {
 666     wxSize sz = GetClientSize();
 667     if (GetChildren().GetFirst())
 668     {
 669         ((wxWindow*) GetChildren().GetFirst()->GetData())->SetSize(0, 0, sz.x, sz.y);
 670     }
 671 }
 672
 673 void wxSplitterScrolledWindow::OnScroll(wxScrollWinEvent& event)
 674 {
 675     // Ensure that events being propagated back up the window hierarchy
 676     // don't cause an infinite loop
 677     static bool inOnScroll = false;
 678     if (inOnScroll)
 679     {
 680         event.Skip();
 681         return;
 682     }
 683     inOnScroll = true;
 684
 685     int orient = event.GetOrientation();
 686
 687     int nScrollInc = CalcScrollInc(event);
 688     if (nScrollInc == 0)
 689     {
 690         inOnScroll = false;
 691         return;
 692     }
 693
 694     if (orient == wxHORIZONTAL)
 695     {
 696         inOnScroll = false;
 697         event.Skip();
 698         return;
 699 #if 0
 700         int newPos = m_xScrollPosition + nScrollInc;
 701         SetScrollPos(wxHORIZONTAL, newPos, true );
 702 #endif
 703     }
 704     else
 705     {
 706         int newPos = m_yScrollPosition + nScrollInc;
 707         SetScrollPos(wxVERTICAL, newPos, true );
 708     }
 709
 710     if (orient == wxHORIZONTAL)
 711     {
 712         m_xScrollPosition += nScrollInc;
 713     }
 714     else
 715     {
 716         m_yScrollPosition += nScrollInc;
 717     }
 718
 719     // Find targets in splitter window and send the event to them
 720     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
 721     while (node)
 722     {
 723         wxWindow* child = (wxWindow*) node->GetData();
 724         if (child->IsKindOf(CLASSINFO(wxSplitterWindow)))
 725         {
 726             wxSplitterWindow* splitter = (wxSplitterWindow*) child;
 727             if (splitter->GetWindow1())
 728                 splitter->GetWindow1()->ProcessEvent(event);
 729             if (splitter->GetWindow2())
 730                 splitter->GetWindow2()->ProcessEvent(event);
 731             break;
 732         }
 733         node = node->GetNext();
 734     }
 735
 736     m_targetWindow->Update() ;
 737
 738     inOnScroll = false;
 739 }
 740