src/msw/slider95.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/slider.cpp
   3 // Purpose:     wxSlider, using the Win95 (and later) trackbar control
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart 1998
   9 //                  Vadim Zeitlin 2004
  10 // Licence:     wxWindows licence
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13 // ============================================================================
  14 // declarations
  15 // ============================================================================
  16
  17 // ----------------------------------------------------------------------------
  18 // headers
  19 // ----------------------------------------------------------------------------
  20
  21 // For compilers that support precompilation, includes "wx.h".
  22 #include "wx/wxprec.h"
  23
  24 #ifdef __BORLANDC__
  25     #pragma hdrstop
  26 #endif
  27
  28 #if wxUSE_SLIDER
  29
  30 #ifndef WX_PRECOMP
  31     #include "wx/brush.h"
  32 #endif
  33
  34 #include "wx/slider.h"
  35 #include "wx/msw/subwin.h"
  36
  37 // include <commctrl.h> "properly"
  38 #include "wx/msw/wrapcctl.h"
  39
  40 // ----------------------------------------------------------------------------
  41 // constants
  42 // ----------------------------------------------------------------------------
  43
  44 // indices of labels in wxSlider::m_labels
  45 enum
  46 {
  47     SliderLabel_Min,
  48     SliderLabel_Max,
  49     SliderLabel_Value,
  50     SliderLabel_Last
  51 };
  52
  53 // the gap between the slider and the labels, in pixels
  54 static const int HGAP = 5;
  55
  56 // ----------------------------------------------------------------------------
  57 // XTI
  58 // ----------------------------------------------------------------------------
  59
  60 #if wxUSE_EXTENDED_RTTI
  61 WX_DEFINE_FLAGS( wxSliderStyle )
  62
  63 wxBEGIN_FLAGS( wxSliderStyle )
  64     // new style border flags, we put them first to
  65     // use them for streaming out
  66     wxFLAGS_MEMBER(wxBORDER_SIMPLE)
  67     wxFLAGS_MEMBER(wxBORDER_SUNKEN)
  68     wxFLAGS_MEMBER(wxBORDER_DOUBLE)
  69     wxFLAGS_MEMBER(wxBORDER_RAISED)
  70     wxFLAGS_MEMBER(wxBORDER_STATIC)
  71     wxFLAGS_MEMBER(wxBORDER_NONE)
  72
  73     // old style border flags
  74     wxFLAGS_MEMBER(wxSIMPLE_BORDER)
  75     wxFLAGS_MEMBER(wxSUNKEN_BORDER)
  76     wxFLAGS_MEMBER(wxDOUBLE_BORDER)
  77     wxFLAGS_MEMBER(wxRAISED_BORDER)
  78     wxFLAGS_MEMBER(wxSTATIC_BORDER)
  79     wxFLAGS_MEMBER(wxBORDER)
  80
  81     // standard window styles
  82     wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
  83     wxFLAGS_MEMBER(wxCLIP_CHILDREN)
  84     wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
  85     wxFLAGS_MEMBER(wxWANTS_CHARS)
  86     wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
  87     wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
  88     wxFLAGS_MEMBER(wxVSCROLL)
  89     wxFLAGS_MEMBER(wxHSCROLL)
  90
  91     wxFLAGS_MEMBER(wxSL_HORIZONTAL)
  92     wxFLAGS_MEMBER(wxSL_VERTICAL)
  93     wxFLAGS_MEMBER(wxSL_AUTOTICKS)
  94     wxFLAGS_MEMBER(wxSL_LABELS)
  95     wxFLAGS_MEMBER(wxSL_LEFT)
  96     wxFLAGS_MEMBER(wxSL_TOP)
  97     wxFLAGS_MEMBER(wxSL_RIGHT)
  98     wxFLAGS_MEMBER(wxSL_BOTTOM)
  99     wxFLAGS_MEMBER(wxSL_BOTH)
 100     wxFLAGS_MEMBER(wxSL_SELRANGE)
 101     wxFLAGS_MEMBER(wxSL_INVERSE)
 102
 103 wxEND_FLAGS( wxSliderStyle )
 104
 105 IMPLEMENT_DYNAMIC_CLASS_XTI(wxSlider, wxControl,"wx/slider.h")
 106
 107 wxBEGIN_PROPERTIES_TABLE(wxSlider)
 108     wxEVENT_RANGE_PROPERTY( Scroll , wxEVT_SCROLL_TOP , wxEVT_SCROLL_CHANGED , wxScrollEvent )
 109     wxEVENT_PROPERTY( Updated , wxEVT_COMMAND_SLIDER_UPDATED , wxCommandEvent )
 110
 111     wxPROPERTY( Value , int , SetValue, GetValue , 0, 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
 112     wxPROPERTY( Minimum , int , SetMin, GetMin, 0 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
 113     wxPROPERTY( Maximum , int , SetMax, GetMax, 0 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
 114     wxPROPERTY( PageSize , int , SetPageSize, GetLineSize, 1 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
 115     wxPROPERTY( LineSize , int , SetLineSize, GetLineSize, 1 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
 116     wxPROPERTY( ThumbLength , int , SetThumbLength, GetThumbLength, 1 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
 117     wxPROPERTY_FLAGS( WindowStyle , wxSliderStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
 118 wxEND_PROPERTIES_TABLE()
 119
 120 wxBEGIN_HANDLERS_TABLE(wxSlider)
 121 wxEND_HANDLERS_TABLE()
 122
 123 wxCONSTRUCTOR_8( wxSlider , wxWindow* , Parent , wxWindowID , Id , int , Value , int , Minimum , int , Maximum , wxPoint , Position , wxSize , Size , long , WindowStyle )
 124 #else
 125 IMPLEMENT_DYNAMIC_CLASS(wxSlider, wxControl)
 126 #endif
 127
 128 // ============================================================================
 129 // wxSlider implementation
 130 // ============================================================================
 131
 132 // ----------------------------------------------------------------------------
 133 // construction
 134 // ----------------------------------------------------------------------------
 135
 136 void wxSlider::Init()
 137 {
 138     m_labels = NULL;
 139
 140     m_pageSize = 1;
 141     m_lineSize = 1;
 142     m_rangeMax = 0;
 143     m_rangeMin = 0;
 144     m_tickFreq = 0;
 145
 146     m_isDragging = false;
 147 }
 148
 149 bool
 150 wxSlider::Create(wxWindow *parent,
 151                  wxWindowID id,
 152                  int value,
 153                  int minValue,
 154                  int maxValue,
 155                  const wxPoint& pos,
 156                  const wxSize& size,
 157                  long style,
 158                  const wxValidator& validator,
 159                  const wxString& name)
 160 {
 161     // our styles are redundant: wxSL_LEFT/RIGHT imply wxSL_VERTICAL and
 162     // wxSL_TOP/BOTTOM imply wxSL_HORIZONTAL, but for backwards compatibility
 163     // reasons we can't really change it, instead try to infer the orientation
 164     // from the flags given to us here
 165     switch ( style & (wxSL_LEFT | wxSL_RIGHT | wxSL_TOP | wxSL_BOTTOM) )
 166     {
 167         case wxSL_LEFT:
 168         case wxSL_RIGHT:
 169             style |= wxSL_VERTICAL;
 170             break;
 171
 172         case wxSL_TOP:
 173         case wxSL_BOTTOM:
 174             style |= wxSL_HORIZONTAL;
 175             break;
 176
 177         case 0:
 178             // no specific direction, do we have at least the orientation?
 179             if ( !(style & (wxSL_HORIZONTAL | wxSL_VERTICAL)) )
 180             {
 181                 // no, choose default
 182                 style |= wxSL_BOTTOM | wxSL_HORIZONTAL;
 183             }
 184     };
 185
 186     wxASSERT_MSG( !(style & wxSL_VERTICAL) || !(style & wxSL_HORIZONTAL),
 187                     _T("incompatible slider direction and orientation") );
 188
 189
 190     // initialize everything
 191     if ( !CreateControl(parent, id, pos, size, style, validator, name) )
 192         return false;
 193
 194     // ensure that we have correct values for GetLabelsSize()
 195     m_rangeMin = minValue;
 196     m_rangeMax = maxValue;
 197
 198     // create the labels first, so that our DoGetBestSize() could take them
 199     // into account
 200     //
 201     // note that we could simply create 3 wxStaticTexts here but it could
 202     // result in some observable side effects at wx level (e.g. the parent of
 203     // wxSlider would have 3 more children than expected) and so we prefer not
 204     // to do it like this
 205     if ( m_windowStyle & wxSL_LABELS )
 206     {
 207         m_labels = new wxSubwindows(SliderLabel_Last);
 208
 209         HWND hwndParent = GetHwndOf(parent);
 210         for ( size_t n = 0; n < SliderLabel_Last; n++ )
 211         {
 212             (*m_labels)[n] = ::CreateWindow
 213                                (
 214                                     wxT("STATIC"),
 215                                     NULL,
 216                                     WS_CHILD | WS_VISIBLE | SS_CENTER,
 217                                     0, 0, 0, 0,
 218                                     hwndParent,
 219                                     (HMENU)NewControlId(),
 220                                     wxGetInstance(),
 221                                     NULL
 222                                );
 223         }
 224
 225         m_labels->SetFont(GetFont());
 226     }
 227
 228     // now create the main control too
 229     if ( !MSWCreateControl(TRACKBAR_CLASS, wxEmptyString, pos, size) )
 230         return false;
 231
 232     // and initialize everything
 233     SetRange(minValue, maxValue);
 234     SetValue(value);
 235     SetPageSize((maxValue - minValue)/10);
 236
 237     // we need to position the labels correctly if we have them and if
 238     // SetSize() hadn't been called before (when best size was determined by
 239     // MSWCreateControl()) as in this case they haven't been put in place yet
 240     if ( m_labels && size.x != wxDefaultCoord && size.y != wxDefaultCoord )
 241     {
 242         SetSize(size);
 243     }
 244
 245     return true;
 246 }
 247
 248 WXDWORD wxSlider::MSWGetStyle(long style, WXDWORD *exstyle) const
 249 {
 250     WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle);
 251
 252     // TBS_HORZ, TBS_RIGHT and TBS_BOTTOM are 0 but do include them for clarity
 253     msStyle |= style & wxSL_VERTICAL ? TBS_VERT : TBS_HORZ;
 254
 255     if ( style & wxSL_BOTH )
 256     {
 257         // this fully specifies the style combined with TBS_VERT/HORZ above
 258         msStyle |= TBS_BOTH;
 259     }
 260     else // choose one direction
 261     {
 262         if ( style & wxSL_LEFT )
 263             msStyle |= TBS_LEFT;
 264         else if ( style & wxSL_RIGHT )
 265             msStyle |= TBS_RIGHT;
 266         else if ( style & wxSL_TOP )
 267             msStyle |= TBS_TOP;
 268         else if ( style & wxSL_BOTTOM )
 269             msStyle |= TBS_BOTTOM;
 270     }
 271
 272     if ( style & wxSL_AUTOTICKS )
 273         msStyle |= TBS_AUTOTICKS;
 274     else
 275         msStyle |= TBS_NOTICKS;
 276
 277     if ( style & wxSL_SELRANGE )
 278         msStyle |= TBS_ENABLESELRANGE;
 279
 280     return msStyle;
 281 }
 282
 283 wxSlider::~wxSlider()
 284 {
 285     delete m_labels;
 286 }
 287
 288 // ----------------------------------------------------------------------------
 289 // event handling
 290 // ----------------------------------------------------------------------------
 291
 292 bool wxSlider::MSWOnScroll(int WXUNUSED(orientation),
 293                            WXWORD wParam,
 294                            WXWORD WXUNUSED(pos),
 295                            WXHWND control)
 296 {
 297     wxEventType scrollEvent;
 298     switch ( wParam )
 299     {
 300         case SB_TOP:
 301             scrollEvent = wxEVT_SCROLL_TOP;
 302             break;
 303
 304         case SB_BOTTOM:
 305             scrollEvent = wxEVT_SCROLL_BOTTOM;
 306             break;
 307
 308         case SB_LINEUP:
 309             scrollEvent = wxEVT_SCROLL_LINEUP;
 310             break;
 311
 312         case SB_LINEDOWN:
 313             scrollEvent = wxEVT_SCROLL_LINEDOWN;
 314             break;
 315
 316         case SB_PAGEUP:
 317             scrollEvent = wxEVT_SCROLL_PAGEUP;
 318             break;
 319
 320         case SB_PAGEDOWN:
 321             scrollEvent = wxEVT_SCROLL_PAGEDOWN;
 322             break;
 323
 324         case SB_THUMBTRACK:
 325             scrollEvent = wxEVT_SCROLL_THUMBTRACK;
 326             m_isDragging = true;
 327             break;
 328
 329         case SB_THUMBPOSITION:
 330             if ( m_isDragging )
 331             {
 332                 scrollEvent = wxEVT_SCROLL_THUMBRELEASE;
 333                 m_isDragging = false;
 334             }
 335             else
 336             {
 337                 // this seems to only happen when the mouse wheel is used: in
 338                 // this case, as it might be unexpected to get THUMBRELEASE
 339                 // without preceding THUMBTRACKs, we don't generate it at all
 340                 // but generate CHANGED event because the control itself does
 341                 // not send us SB_ENDSCROLL for whatever reason when mouse
 342                 // wheel is used
 343                 scrollEvent = wxEVT_SCROLL_CHANGED;
 344             }
 345             break;
 346
 347         case SB_ENDSCROLL:
 348             scrollEvent = wxEVT_SCROLL_CHANGED;
 349             break;
 350
 351         default:
 352             // unknown scroll event?
 353             return false;
 354     }
 355
 356     int newPos = ValueInvertOrNot((int) ::SendMessage((HWND) control, TBM_GETPOS, 0, 0));
 357     if ( (newPos < GetMin()) || (newPos > GetMax()) )
 358     {
 359         // out of range - but we did process it
 360         return true;
 361     }
 362
 363     SetValue(newPos);
 364
 365     wxScrollEvent event(scrollEvent, m_windowId);
 366     event.SetPosition(newPos);
 367     event.SetEventObject( this );
 368     GetEventHandler()->ProcessEvent(event);
 369
 370     wxCommandEvent cevent( wxEVT_COMMAND_SLIDER_UPDATED, GetId() );
 371     cevent.SetInt( newPos );
 372     cevent.SetEventObject( this );
 373
 374     return GetEventHandler()->ProcessEvent( cevent );
 375 }
 376
 377 void wxSlider::Command (wxCommandEvent & event)
 378 {
 379     SetValue (event.GetInt());
 380     ProcessCommand (event);
 381 }
 382
 383 // ----------------------------------------------------------------------------
 384 // geometry stuff
 385 // ----------------------------------------------------------------------------
 386
 387 wxRect wxSlider::GetBoundingBox() const
 388 {
 389     // take care not to call our own functions which would call us recursively
 390     int x, y, w, h;
 391     wxSliderBase::DoGetPosition(&x, &y);
 392     wxSliderBase::DoGetSize(&w, &h);
 393
 394     wxRect rect(x, y, w, h);
 395     if ( m_labels )
 396     {
 397         wxRect lrect = m_labels->GetBoundingBox();
 398         GetParent()->ScreenToClient(&lrect.x, &lrect.y);
 399         rect.Union(lrect);
 400     }
 401
 402     return rect;
 403 }
 404
 405 void wxSlider::DoGetSize(int *width, int *height) const
 406 {
 407     wxRect rect = GetBoundingBox();
 408
 409     if ( width )
 410         *width = rect.width;
 411     if ( height )
 412         *height = rect.height;
 413 }
 414
 415 void wxSlider::DoGetPosition(int *x, int *y) const
 416 {
 417     wxRect rect = GetBoundingBox();
 418
 419     if ( x )
 420         *x = rect.x;
 421     if ( y )
 422         *y = rect.y;
 423 }
 424
 425 int wxSlider::GetLabelsSize(int *width) const
 426 {
 427     int cy;
 428
 429     if ( width )
 430     {
 431         // find the max label width
 432         int wLabelMin, wLabelMax;
 433         GetTextExtent(Format(m_rangeMin), &wLabelMin, &cy);
 434         GetTextExtent(Format(m_rangeMax), &wLabelMax, &cy);
 435
 436         *width = wxMax(wLabelMin, wLabelMax);
 437     }
 438     else
 439     {
 440         cy = GetCharHeight();
 441     }
 442
 443     return EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
 444 }
 445
 446 void wxSlider::DoMoveWindow(int x, int y, int width, int height)
 447 {
 448     // all complications below are because we need to position the labels,
 449     // without them everything is easy
 450     if ( !m_labels )
 451     {
 452         wxSliderBase::DoMoveWindow(x, y, width, height);
 453         return;
 454     }
 455
 456     // be careful to position the slider itself after moving the labels as
 457     // otherwise our GetBoundingBox(), which is called from WM_SIZE handler,
 458     // would return a wrong result and wrong size would be cached internally
 459     if ( HasFlag(wxSL_VERTICAL) )
 460     {
 461         int wLabel;
 462         int hLabel = GetLabelsSize(&wLabel);
 463
 464         int xLabel = HasFlag(wxSL_LEFT) ? x + width - wLabel : x;
 465
 466         // position all labels: min at the top, value in the middle and max at
 467         // the bottom
 468         DoMoveSibling((HWND)(*m_labels)[SliderLabel_Min],
 469                      xLabel, y, wLabel, hLabel);
 470
 471         DoMoveSibling((HWND)(*m_labels)[SliderLabel_Value],
 472                      xLabel, y + (height - hLabel)/2, wLabel, hLabel);
 473
 474         DoMoveSibling((HWND)(*m_labels)[SliderLabel_Max],
 475                       xLabel, y + height - hLabel, wLabel, hLabel);
 476
 477         // position the slider itself along the left/right edge
 478         wxSliderBase::DoMoveWindow(HasFlag(wxSL_LEFT) ? x : x + wLabel + HGAP,
 479                                    y + hLabel/2,
 480                                    width - wLabel - HGAP,
 481                                    height - hLabel);
 482     }
 483     else // horizontal
 484     {
 485         int wLabel;
 486         int hLabel = GetLabelsSize(&wLabel);
 487
 488         int yLabel = HasFlag(wxSL_TOP) ? y + height - hLabel : y;
 489
 490         // position all labels: min on the left, value in the middle and max to
 491         // the right
 492         DoMoveSibling((HWND)(*m_labels)[SliderLabel_Min],
 493                       x, yLabel, wLabel, hLabel);
 494
 495         DoMoveSibling((HWND)(*m_labels)[SliderLabel_Value],
 496                       x + (width - wLabel)/2, yLabel, wLabel, hLabel);
 497
 498         DoMoveSibling((HWND)(*m_labels)[SliderLabel_Max],
 499                       x + width - wLabel, yLabel, wLabel, hLabel);
 500
 501         // position the slider itself along the top/bottom edge
 502         wxSliderBase::DoMoveWindow(x,
 503                                    HasFlag(wxSL_TOP) ? y : y + hLabel,
 504                                    width,
 505                                    height - hLabel);
 506     }
 507 }
 508
 509 wxSize wxSlider::DoGetBestSize() const
 510 {
 511     // these values are arbitrary
 512     static const int length = 100;
 513     static const int thumb = 24;
 514     static const int ticks = 8;
 515
 516     int *width;
 517     wxSize size;
 518     if ( HasFlag(wxSL_VERTICAL) )
 519     {
 520         size.x = thumb;
 521         size.y = length;
 522         width = &size.x;
 523
 524         if ( m_labels )
 525         {
 526             int wLabel;
 527             int hLabel = GetLabelsSize(&wLabel);
 528
 529             // account for the labels
 530             size.x += HGAP + wLabel;
 531
 532             // labels are indented relative to the slider itself
 533             size.y += hLabel;
 534         }
 535     }
 536     else // horizontal
 537     {
 538         size.x = length;
 539         size.y = thumb;
 540         width = &size.y;
 541
 542         if ( m_labels )
 543         {
 544             // labels add extra height
 545             size.y += GetLabelsSize();
 546         }
 547     }
 548
 549     // need extra space to show ticks
 550     if ( HasFlag(wxSL_TICKS) )
 551     {
 552         *width += ticks;
 553
 554         // and maybe twice as much if we show them on both sides
 555         if ( HasFlag(wxSL_BOTH) )
 556             *width += ticks;
 557     }
 558
 559     return size;
 560 }
 561
 562 // ----------------------------------------------------------------------------
 563 // slider-specific methods
 564 // ----------------------------------------------------------------------------
 565
 566 int wxSlider::GetValue() const
 567 {
 568     return ValueInvertOrNot(::SendMessage(GetHwnd(), TBM_GETPOS, 0, 0));
 569 }
 570
 571 void wxSlider::SetValue(int value)
 572 {
 573     ::SendMessage(GetHwnd(), TBM_SETPOS, (WPARAM)TRUE, (LPARAM)ValueInvertOrNot(value));
 574
 575     if ( m_labels )
 576     {
 577         ::SetWindowText((*m_labels)[SliderLabel_Value], Format(value));
 578     }
 579 }
 580
 581 void wxSlider::SetRange(int minValue, int maxValue)
 582 {
 583     m_rangeMin = minValue;
 584     m_rangeMax = maxValue;
 585
 586     ::SendMessage(GetHwnd(), TBM_SETRANGEMIN, TRUE, m_rangeMin);
 587     ::SendMessage(GetHwnd(), TBM_SETRANGEMAX, TRUE, m_rangeMax);
 588
 589     if ( m_labels )
 590     {
 591         ::SetWindowText((*m_labels)[SliderLabel_Min], Format(ValueInvertOrNot(m_rangeMin)));
 592         ::SetWindowText((*m_labels)[SliderLabel_Max], Format(ValueInvertOrNot(m_rangeMax)));
 593     }
 594 }
 595
 596 void wxSlider::SetTickFreq(int n, int pos)
 597 {
 598     m_tickFreq = n;
 599     ::SendMessage( GetHwnd(), TBM_SETTICFREQ, (WPARAM) n, (LPARAM) pos );
 600 }
 601
 602 void wxSlider::SetPageSize(int pageSize)
 603 {
 604     ::SendMessage( GetHwnd(), TBM_SETPAGESIZE, (WPARAM) 0, (LPARAM) pageSize );
 605     m_pageSize = pageSize;
 606 }
 607
 608 int wxSlider::GetPageSize() const
 609 {
 610     return m_pageSize;
 611 }
 612
 613 void wxSlider::ClearSel()
 614 {
 615     ::SendMessage(GetHwnd(), TBM_CLEARSEL, (WPARAM) TRUE, (LPARAM) 0);
 616 }
 617
 618 void wxSlider::ClearTicks()
 619 {
 620     ::SendMessage(GetHwnd(), TBM_CLEARTICS, (WPARAM) TRUE, (LPARAM) 0);
 621 }
 622
 623 void wxSlider::SetLineSize(int lineSize)
 624 {
 625     m_lineSize = lineSize;
 626     ::SendMessage(GetHwnd(), TBM_SETLINESIZE, (WPARAM) 0, (LPARAM) lineSize);
 627 }
 628
 629 int wxSlider::GetLineSize() const
 630 {
 631     return (int)::SendMessage(GetHwnd(), TBM_GETLINESIZE, 0, 0);
 632 }
 633
 634 int wxSlider::GetSelEnd() const
 635 {
 636     return (int)::SendMessage(GetHwnd(), TBM_GETSELEND, 0, 0);
 637 }
 638
 639 int wxSlider::GetSelStart() const
 640 {
 641     return (int)::SendMessage(GetHwnd(), TBM_GETSELSTART, 0, 0);
 642 }
 643
 644 void wxSlider::SetSelection(int minPos, int maxPos)
 645 {
 646     ::SendMessage(GetHwnd(), TBM_SETSEL,
 647                   (WPARAM) TRUE /* redraw */,
 648                   (LPARAM) MAKELONG( minPos, maxPos) );
 649 }
 650
 651 void wxSlider::SetThumbLength(int len)
 652 {
 653     ::SendMessage(GetHwnd(), TBM_SETTHUMBLENGTH, (WPARAM) len, (LPARAM) 0);
 654 }
 655
 656 int wxSlider::GetThumbLength() const
 657 {
 658     return (int)::SendMessage( GetHwnd(), TBM_GETTHUMBLENGTH, 0, 0);
 659 }
 660
 661 void wxSlider::SetTick(int tickPos)
 662 {
 663     ::SendMessage( GetHwnd(), TBM_SETTIC, (WPARAM) 0, (LPARAM) tickPos );
 664 }
 665
 666 // ----------------------------------------------------------------------------
 667 // composite control methods
 668 // ----------------------------------------------------------------------------
 669
 670 WXHWND wxSlider::GetStaticMin() const
 671 {
 672     return m_labels ? (WXHWND)(*m_labels)[SliderLabel_Min] : NULL;
 673 }
 674
 675 WXHWND wxSlider::GetStaticMax() const
 676 {
 677     return m_labels ? (WXHWND)(*m_labels)[SliderLabel_Max] : NULL;
 678 }
 679
 680 WXHWND wxSlider::GetEditValue() const
 681 {
 682     return m_labels ? (WXHWND)(*m_labels)[SliderLabel_Value] : NULL;
 683 }
 684
 685 WX_FORWARD_STD_METHODS_TO_SUBWINDOWS(wxSlider, wxSliderBase, m_labels)
 686
 687 #endif // wxUSE_SLIDER