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