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     if ((GetWindowStyle() & wxTR_ROW_LINES) == 0)
 256         return ;
 257
 258     // Reset the device origin since it may have been set
 259     dc.SetDeviceOrigin(0, 0);
 260
 261         wxPen pen(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DLIGHT), 1, wxSOLID);
 262         dc.SetPen(pen);
 263         dc.SetBrush(* wxTRANSPARENT_BRUSH);
 264
 265     wxSize clientSize = GetClientSize();
 266         wxRect itemRect;
 267         int cy=0;
 268         wxTreeItemId h, lastH;
 269         for(h=GetFirstVisibleItem();h;h=GetNextVisible(h))
 270         {
 271                 if (GetBoundingRect(h, itemRect))
 272                 {
 273                         cy = itemRect.GetTop();
 274                         dc.DrawLine(0, cy, clientSize.x, cy);
 275                         lastH = h;
 276                 }
 277         }
 278         if (GetBoundingRect(lastH, itemRect))
 279         {
 280                 cy = itemRect.GetBottom();
 281                 dc.DrawLine(0, cy, clientSize.x, cy);
 282         }
 283 }
 284
 285
 286 // Adjust the containing wxScrolledWindow's scrollbars appropriately
 287 void wxRemotelyScrolledTreeCtrl::AdjustRemoteScrollbars()
 288 {
 289 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 290     if (IsKindOf(CLASSINFO(wxGenericTreeCtrl)))
 291         {
 292                 // This is for the generic tree control.
 293                 // It calls SetScrollbars which has been overridden
 294                 // to adjust the parent scrolled window vertical
 295                 // scrollbar.
 296                 ((wxGenericTreeCtrl*) this)->AdjustMyScrollbars();
 297         return;
 298         }
 299         else
 300 #endif
 301         {
 302                 // This is for the wxMSW tree control
 303                 wxScrolledWindow* scrolledWindow = GetScrolledWindow();
 304                 if (scrolledWindow)
 305                 {
 306                         wxRect itemRect;
 307                         if (GetBoundingRect(GetRootItem(), itemRect))
 308                         {
 309                 // Actually, the real height seems to be 1 less than reported
 310                 // (e.g. 16 instead of 16)
 311                 int itemHeight = itemRect.GetHeight() - 1;
 312
 313                                 int w, h;
 314                                 GetClientSize(&w, &h);
 315
 316                                 wxRect rect(0, 0, 0, 0);
 317                                 CalcTreeSize(rect);
 318
 319                 double f = ((double) (rect.GetHeight()) / (double) itemHeight)  ;
 320                 int treeViewHeight = (int) ceil(f);
 321
 322                                 int scrollPixelsPerLine = itemHeight;
 323                                 int scrollPos = - (itemRect.y / itemHeight);
 324
 325                                 scrolledWindow->SetScrollbars(0, scrollPixelsPerLine, 0, treeViewHeight, 0, scrollPos);
 326
 327                                 // Ensure that when a scrollbar becomes hidden or visible,
 328                                 // the contained window sizes are right.
 329                                 // Problem: this is called too early (?)
 330                                 wxSizeEvent event(scrolledWindow->GetSize(), scrolledWindow->GetId());
 331                                 scrolledWindow->GetEventHandler()->ProcessEvent(event);
 332                         }
 333                 }
 334         }
 335 }
 336
 337
 338 // Calculate the area that contains both rectangles
 339 static wxRect CombineRectangles(const wxRect& rect1, const wxRect& rect2)
 340 {
 341     wxRect rect;
 342
 343     int right1 = rect1.GetRight();
 344     int bottom1 = rect1.GetBottom();
 345     int right2 = rect2.GetRight();
 346     int bottom2 = rect2.GetBottom();
 347
 348     wxPoint topLeft = wxPoint(wxMin(rect1.x, rect2.x), wxMin(rect1.y, rect2.y));
 349     wxPoint bottomRight = wxPoint(wxMax(right1, right2), wxMax(bottom1, bottom2));
 350
 351     rect.x = topLeft.x; rect.y = topLeft.y;
 352     rect.SetRight(bottomRight.x);
 353     rect.SetBottom(bottomRight.y);
 354
 355     return rect;
 356 }
 357
 358
 359 // Calculate the tree overall size so we can set the scrollbar
 360 // correctly
 361 void wxRemotelyScrolledTreeCtrl::CalcTreeSize(wxRect& rect)
 362 {
 363         CalcTreeSize(GetRootItem(), rect);
 364 }
 365
 366 void wxRemotelyScrolledTreeCtrl::CalcTreeSize(const wxTreeItemId& id, wxRect& rect)
 367 {
 368         // More efficient implementation would be to find the last item (but how?)
 369         // Q: is the bounding rect relative to the top of the virtual tree workspace
 370         // or the top of the window? How would we convert?
 371         wxRect itemSize;
 372         if (GetBoundingRect(id, itemSize))
 373         {
 374                 rect = CombineRectangles(rect, itemSize);
 375         }
 376
 377         long cookie;
 378         wxTreeItemId childId = GetFirstChild(id, cookie);
 379         while (childId != 0)
 380         {
 381                 CalcTreeSize(childId, rect);
 382                 childId = GetNextChild(childId, cookie);
 383         }
 384 }
 385
 386 // Find the scrolled window that contains this control
 387 wxScrolledWindow* wxRemotelyScrolledTreeCtrl::GetScrolledWindow() const
 388 {
 389         wxWindow* parent = wxWindow::GetParent();
 390         while (parent)
 391         {
 392                 if (parent->IsKindOf(CLASSINFO(wxScrolledWindow)))
 393                         return (wxScrolledWindow*) parent;
 394                 parent = parent->GetParent();
 395         }
 396         return NULL;
 397 }
 398
 399 void wxRemotelyScrolledTreeCtrl::OnScroll(wxScrollWinEvent& event)
 400 {
 401     int orient = event.GetOrientation();
 402     if (orient == wxHORIZONTAL)
 403     {
 404         event.Skip();
 405         return;
 406     }
 407     wxScrolledWindow* scrollWin = GetScrolledWindow();
 408     if (!scrollWin)
 409         return;
 410
 411     int x, y;
 412     scrollWin->GetViewStart(& x, & y);
 413
 414     ScrollToLine(-1, y);
 415 }
 416
 417 /*
 418  * wxTreeCompanionWindow
 419  *
 420  * A window displaying values associated with tree control items.
 421  */
 422
 423 IMPLEMENT_CLASS(wxTreeCompanionWindow, wxWindow)
 424
 425 BEGIN_EVENT_TABLE(wxTreeCompanionWindow, wxWindow)
 426         EVT_PAINT(wxTreeCompanionWindow::OnPaint)
 427         EVT_SCROLLWIN(wxTreeCompanionWindow::OnScroll)
 428         EVT_TREE_ITEM_EXPANDED(-1, wxTreeCompanionWindow::OnExpand)
 429         EVT_TREE_ITEM_COLLAPSED(-1, wxTreeCompanionWindow::OnExpand)
 430 END_EVENT_TABLE()
 431
 432 wxTreeCompanionWindow::wxTreeCompanionWindow(wxWindow* parent, wxWindowID id,
 433       const wxPoint& pos,
 434       const wxSize& sz,
 435       long style):
 436         wxWindow(parent, id, pos, sz, style)
 437 {
 438         m_treeCtrl = NULL;
 439 }
 440
 441 void wxTreeCompanionWindow::DrawItem(wxDC& dc, wxTreeItemId id, const wxRect& rect)
 442 {
 443         // TEST CODE
 444 #if 1
 445         if (m_treeCtrl)
 446         {
 447                 wxString text = m_treeCtrl->GetItemText(id);
 448                 dc.SetTextForeground(* wxBLACK);
 449                 dc.SetBackgroundMode(wxTRANSPARENT);
 450
 451                 int textW, textH;
 452                 dc.GetTextExtent(text, & textW, & textH);
 453
 454                 int x = 5;
 455                 int y = rect.GetY() + wxMax(0, (rect.GetHeight() - textH) / 2);
 456
 457                 dc.DrawText(text, x, y);
 458         }
 459 #endif
 460 }
 461
 462 void wxTreeCompanionWindow::OnPaint(wxPaintEvent& event)
 463 {
 464         wxPaintDC dc(this);
 465
 466     if (!m_treeCtrl)
 467         return;
 468
 469         wxPen pen(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DLIGHT), 1, wxSOLID);
 470         dc.SetPen(pen);
 471         dc.SetBrush(* wxTRANSPARENT_BRUSH);
 472         wxFont font(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
 473         dc.SetFont(font);
 474
 475     wxSize clientSize = GetClientSize();
 476         wxRect itemRect;
 477         int cy=0;
 478         wxTreeItemId h, lastH;
 479         for(h=m_treeCtrl->GetFirstVisibleItem();h;h=m_treeCtrl->GetNextVisible(h))
 480         {
 481                 if (m_treeCtrl->GetBoundingRect(h, itemRect))
 482                 {
 483                         cy = itemRect.GetTop();
 484                         wxRect drawItemRect(0, cy, clientSize.x, itemRect.GetHeight());
 485
 486                         lastH = h;
 487
 488                         // Draw the actual item
 489                         DrawItem(dc, h, drawItemRect);
 490                         dc.DrawLine(0, cy, clientSize.x, cy);
 491                 }
 492         }
 493         if (lastH.IsOk() && m_treeCtrl->GetBoundingRect(lastH, itemRect))
 494         {
 495                 cy = itemRect.GetBottom();
 496                 dc.DrawLine(0, cy, clientSize.x, cy);
 497         }
 498 }
 499
 500 void wxTreeCompanionWindow::OnScroll(wxScrollWinEvent& event)
 501 {
 502     int orient = event.GetOrientation();
 503     if (orient == wxHORIZONTAL)
 504     {
 505         event.Skip();
 506         return;
 507     }
 508     if (!m_treeCtrl)
 509         return;
 510
 511         // TODO: scroll the window physically instead of just refreshing.
 512         Refresh(TRUE);
 513 }
 514
 515 void wxTreeCompanionWindow::OnExpand(wxTreeEvent& event)
 516 {
 517         // TODO: something more optimized than simply refresh the whole
 518         // window when the tree is expanded/collapsed. Tricky.
 519         Refresh();
 520 }
 521
 522 /*
 523  * wxThinSplitterWindow
 524  */
 525
 526 IMPLEMENT_CLASS(wxThinSplitterWindow, wxSplitterWindow)
 527
 528 BEGIN_EVENT_TABLE(wxThinSplitterWindow, wxSplitterWindow)
 529         EVT_SIZE(wxThinSplitterWindow::OnSize)
 530 END_EVENT_TABLE()
 531
 532 wxThinSplitterWindow::wxThinSplitterWindow(wxWindow* parent, wxWindowID id,
 533       const wxPoint& pos,
 534       const wxSize& sz,
 535       long style):
 536       wxSplitterWindow(parent, id, pos, sz, style)
 537 {
 538 }
 539
 540 void wxThinSplitterWindow::SizeWindows()
 541 {
 542         // The client size may have changed inbetween
 543         // the sizing of the first window and the sizing of
 544         // the second. So repeat SizeWindows.
 545     wxSplitterWindow::SizeWindows();
 546     wxSplitterWindow::SizeWindows();
 547 }
 548
 549 // Tests for x, y over sash
 550 bool wxThinSplitterWindow::SashHitTest(int x, int y, int tolerance)
 551 {
 552         return wxSplitterWindow::SashHitTest(x, y, 4);
 553 }
 554
 555 void wxThinSplitterWindow::DrawSash(wxDC& dc)
 556 {
 557     if ( m_sashPosition == 0 || !m_windowTwo)
 558         return;
 559     if (GetWindowStyle() & wxSP_NOSASH)
 560         return;
 561
 562     int w, h;
 563     GetClientSize(&w, &h);
 564
 565         if ( m_splitMode == wxSPLIT_VERTICAL )
 566         {
 567                 dc.SetPen(* m_facePen);
 568                 dc.SetBrush(* m_faceBrush);
 569                 int h1 = h-1;
 570                 int y1 = 0;
 571                 if ( (GetWindowStyleFlag() & wxSP_BORDER) != wxSP_BORDER && (GetWindowStyleFlag() & wxSP_3DBORDER) != wxSP_3DBORDER )
 572                         h1 += 1; // Not sure why this is necessary...
 573                 if ( (GetWindowStyleFlag() & wxSP_3DBORDER) == wxSP_3DBORDER)
 574                 {
 575                         y1 = 2; h1 -= 3;
 576                 }
 577                 dc.DrawRectangle(m_sashPosition, y1, m_sashSize, h1);
 578         }
 579         else
 580         {
 581                 dc.SetPen(* m_facePen);
 582                 dc.SetBrush(* m_faceBrush);
 583                 int w1 = w-1;
 584                 int x1 = 0;
 585                 if ( (GetWindowStyleFlag() & wxSP_BORDER) != wxSP_BORDER && (GetWindowStyleFlag() & wxSP_3DBORDER) != wxSP_3DBORDER )
 586                         w1 ++;
 587                 if ( (GetWindowStyleFlag() & wxSP_3DBORDER) == wxSP_3DBORDER)
 588                 {
 589                         x1 = 2; w1 -= 3;
 590                 }
 591                 dc.DrawRectangle(x1, m_sashPosition, w1, m_sashSize);
 592         }
 593
 594     dc.SetPen(wxNullPen);
 595     dc.SetBrush(wxNullBrush);
 596 }
 597
 598 void wxThinSplitterWindow::OnSize(wxSizeEvent& event)
 599 {
 600         wxSplitterWindow::OnSize(event);
 601 }
 602
 603 /*
 604  * wxSplitterScrolledWindow
 605  */
 606
 607 IMPLEMENT_CLASS(wxSplitterScrolledWindow, wxScrolledWindow)
 608
 609 BEGIN_EVENT_TABLE(wxSplitterScrolledWindow, wxScrolledWindow)
 610         EVT_SCROLLWIN(wxSplitterScrolledWindow::OnScroll)
 611         EVT_SIZE(wxSplitterScrolledWindow::OnSize)
 612 END_EVENT_TABLE()
 613
 614 wxSplitterScrolledWindow::wxSplitterScrolledWindow(wxWindow* parent, wxWindowID id,
 615       const wxPoint& pos,
 616       const wxSize& sz,
 617       long style):
 618       wxScrolledWindow(parent, id, pos, sz, style)
 619 {
 620 }
 621
 622 void wxSplitterScrolledWindow::OnSize(wxSizeEvent& event)
 623 {
 624         wxSize sz = GetClientSize();
 625         if (GetChildren().First())
 626         {
 627                 ((wxWindow*) GetChildren().First()->Data())->SetSize(0, 0, sz.x, sz.y);
 628         }
 629 }
 630
 631 void wxSplitterScrolledWindow::OnScroll(wxScrollWinEvent& event)
 632 {
 633     // Ensure that events being propagated back up the window hierarchy
 634     // don't cause an infinite loop
 635     static bool inOnScroll = FALSE;
 636     if (inOnScroll)
 637     {
 638         event.Skip();
 639         return;
 640     }
 641     inOnScroll = TRUE;
 642
 643     int orient = event.GetOrientation();
 644
 645     int nScrollInc = CalcScrollInc(event);
 646     if (nScrollInc == 0)
 647     {
 648         inOnScroll = FALSE;
 649         return;
 650     }
 651
 652     if (orient == wxHORIZONTAL)
 653     {
 654         inOnScroll = FALSE;
 655         event.Skip();
 656         return;
 657 #if 0
 658         int newPos = m_xScrollPosition + nScrollInc;
 659         SetScrollPos(wxHORIZONTAL, newPos, TRUE );
 660 #endif
 661     }
 662     else
 663     {
 664         int newPos = m_yScrollPosition + nScrollInc;
 665         SetScrollPos(wxVERTICAL, newPos, TRUE );
 666     }
 667
 668     if (orient == wxHORIZONTAL)
 669     {
 670         m_xScrollPosition += nScrollInc;
 671     }
 672     else
 673     {
 674         m_yScrollPosition += nScrollInc;
 675     }
 676
 677     // Find targets in splitter window and send the event to them
 678     wxNode* node = GetChildren().First();
 679     while (node)
 680     {
 681         wxWindow* child = (wxWindow*) node->Data();
 682         if (child->IsKindOf(CLASSINFO(wxSplitterWindow)))
 683         {
 684             wxSplitterWindow* splitter = (wxSplitterWindow*) child;
 685             if (splitter->GetWindow1())
 686                 splitter->GetWindow1()->ProcessEvent(event);
 687             if (splitter->GetWindow2())
 688                 splitter->GetWindow2()->ProcessEvent(event);
 689             break;
 690         }
 691         node = node->Next();
 692     }
 693
 694 #ifdef __WXMAC__
 695     m_targetWindow->MacUpdateImmediately() ;
 696 #endif
 697
 698     inOnScroll = FALSE;
 699 }
 700