| 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 | #include "wx/slider.h" |
| 31 | |
| 32 | #ifndef WX_PRECOMP |
| 33 | #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly" |
| 34 | #include "wx/brush.h" |
| 35 | #endif |
| 36 | |
| 37 | #include "wx/msw/subwin.h" |
| 38 | |
| 39 | // ---------------------------------------------------------------------------- |
| 40 | // constants |
| 41 | // ---------------------------------------------------------------------------- |
| 42 | |
| 43 | namespace |
| 44 | { |
| 45 | |
| 46 | // indices of labels in wxSlider::m_labels |
| 47 | enum |
| 48 | { |
| 49 | SliderLabel_Min, |
| 50 | SliderLabel_Max, |
| 51 | SliderLabel_Value, |
| 52 | SliderLabel_Last |
| 53 | }; |
| 54 | |
| 55 | // the gaps between the slider and the labels, in pixels |
| 56 | const int HGAP = 5; |
| 57 | const int VGAP = 4; |
| 58 | // the width of the borders including white space |
| 59 | const int BORDERPAD = 8; |
| 60 | // these 2 values are arbitrary: |
| 61 | const int THUMB = 24; |
| 62 | const int TICK = 8; |
| 63 | |
| 64 | } // anonymous namespace |
| 65 | |
| 66 | // ============================================================================ |
| 67 | // wxSlider implementation |
| 68 | // ============================================================================ |
| 69 | |
| 70 | // ---------------------------------------------------------------------------- |
| 71 | // construction |
| 72 | // ---------------------------------------------------------------------------- |
| 73 | |
| 74 | void wxSlider::Init() |
| 75 | { |
| 76 | m_labels = NULL; |
| 77 | |
| 78 | m_pageSize = 1; |
| 79 | m_lineSize = 1; |
| 80 | m_rangeMax = 0; |
| 81 | m_rangeMin = 0; |
| 82 | m_tickFreq = 0; |
| 83 | |
| 84 | m_isDragging = false; |
| 85 | } |
| 86 | |
| 87 | bool wxSlider::Create(wxWindow *parent, |
| 88 | wxWindowID id, |
| 89 | int value, |
| 90 | int minValue, |
| 91 | int maxValue, |
| 92 | const wxPoint& pos, |
| 93 | const wxSize& size, |
| 94 | long style, |
| 95 | const wxValidator& validator, |
| 96 | const wxString& name) |
| 97 | { |
| 98 | wxCHECK_MSG( minValue < maxValue, false, |
| 99 | wxT("Slider minimum must be strictly less than the maximum.") ); |
| 100 | |
| 101 | // our styles are redundant: wxSL_LEFT/RIGHT imply wxSL_VERTICAL and |
| 102 | // wxSL_TOP/BOTTOM imply wxSL_HORIZONTAL, but for backwards compatibility |
| 103 | // reasons we can't really change it, instead try to infer the orientation |
| 104 | // from the flags given to us here |
| 105 | switch ( style & (wxSL_LEFT | wxSL_RIGHT | wxSL_TOP | wxSL_BOTTOM) ) |
| 106 | { |
| 107 | case wxSL_LEFT: |
| 108 | case wxSL_RIGHT: |
| 109 | style |= wxSL_VERTICAL; |
| 110 | break; |
| 111 | |
| 112 | case wxSL_TOP: |
| 113 | case wxSL_BOTTOM: |
| 114 | style |= wxSL_HORIZONTAL; |
| 115 | break; |
| 116 | |
| 117 | case 0: |
| 118 | // no specific direction, do we have at least the orientation? |
| 119 | if ( !(style & (wxSL_HORIZONTAL | wxSL_VERTICAL)) ) |
| 120 | { |
| 121 | // no, choose default |
| 122 | style |= wxSL_BOTTOM | wxSL_HORIZONTAL; |
| 123 | } |
| 124 | }; |
| 125 | |
| 126 | wxASSERT_MSG( !(style & wxSL_VERTICAL) || !(style & wxSL_HORIZONTAL), |
| 127 | wxT("incompatible slider direction and orientation") ); |
| 128 | |
| 129 | |
| 130 | // initialize everything |
| 131 | if ( !CreateControl(parent, id, pos, size, style, validator, name) ) |
| 132 | return false; |
| 133 | |
| 134 | // ensure that we have correct values for GetLabelsSize() |
| 135 | m_rangeMin = minValue; |
| 136 | m_rangeMax = maxValue; |
| 137 | |
| 138 | // create the labels first, so that our DoGetBestSize() could take them |
| 139 | // into account |
| 140 | // |
| 141 | // note that we could simply create 3 wxStaticTexts here but it could |
| 142 | // result in some observable side effects at wx level (e.g. the parent of |
| 143 | // wxSlider would have 3 more children than expected) and so we prefer not |
| 144 | // to do it like this |
| 145 | if ( m_windowStyle & wxSL_LABELS ) |
| 146 | { |
| 147 | m_labels = new wxSubwindows(SliderLabel_Last); |
| 148 | |
| 149 | HWND hwndParent = GetHwndOf(parent); |
| 150 | for ( size_t n = 0; n < SliderLabel_Last; n++ ) |
| 151 | { |
| 152 | wxWindowIDRef lblid = NewControlId(); |
| 153 | |
| 154 | HWND wnd = ::CreateWindow |
| 155 | ( |
| 156 | wxT("STATIC"), |
| 157 | NULL, |
| 158 | WS_CHILD | WS_VISIBLE | SS_CENTER, |
| 159 | 0, 0, 0, 0, |
| 160 | hwndParent, |
| 161 | (HMENU)wxUIntToPtr(lblid.GetValue()), |
| 162 | wxGetInstance(), |
| 163 | NULL |
| 164 | ); |
| 165 | |
| 166 | m_labels->Set(n, wnd, lblid); |
| 167 | } |
| 168 | m_labels->SetFont(GetFont()); |
| 169 | } |
| 170 | |
| 171 | // now create the main control too |
| 172 | if ( !MSWCreateControl(TRACKBAR_CLASS, wxEmptyString, pos, size) ) |
| 173 | return false; |
| 174 | |
| 175 | // and initialize everything |
| 176 | SetRange(minValue, maxValue); |
| 177 | SetValue(value); |
| 178 | SetPageSize( wxMax(1, (maxValue - minValue)/10) ); |
| 179 | |
| 180 | // we need to position the labels correctly if we have them and if |
| 181 | // SetSize() hadn't been called before (when best size was determined by |
| 182 | // MSWCreateControl()) as in this case they haven't been put in place yet |
| 183 | if ( m_labels && size.x != wxDefaultCoord && size.y != wxDefaultCoord ) |
| 184 | { |
| 185 | SetSize(size); |
| 186 | } |
| 187 | |
| 188 | return true; |
| 189 | } |
| 190 | |
| 191 | WXDWORD wxSlider::MSWGetStyle(long style, WXDWORD *exstyle) const |
| 192 | { |
| 193 | WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle); |
| 194 | |
| 195 | // TBS_HORZ, TBS_RIGHT and TBS_BOTTOM are 0 but do include them for clarity |
| 196 | msStyle |= style & wxSL_VERTICAL ? TBS_VERT : TBS_HORZ; |
| 197 | |
| 198 | if ( style & wxSL_BOTH ) |
| 199 | { |
| 200 | // this fully specifies the style combined with TBS_VERT/HORZ above |
| 201 | msStyle |= TBS_BOTH; |
| 202 | } |
| 203 | else // choose one direction |
| 204 | { |
| 205 | if ( style & wxSL_LEFT ) |
| 206 | msStyle |= TBS_LEFT; |
| 207 | else if ( style & wxSL_RIGHT ) |
| 208 | msStyle |= TBS_RIGHT; |
| 209 | else if ( style & wxSL_TOP ) |
| 210 | msStyle |= TBS_TOP; |
| 211 | else if ( style & wxSL_BOTTOM ) |
| 212 | msStyle |= TBS_BOTTOM; |
| 213 | } |
| 214 | |
| 215 | if ( style & wxSL_AUTOTICKS ) |
| 216 | msStyle |= TBS_AUTOTICKS; |
| 217 | else |
| 218 | msStyle |= TBS_NOTICKS; |
| 219 | |
| 220 | if ( style & wxSL_SELRANGE ) |
| 221 | msStyle |= TBS_ENABLESELRANGE; |
| 222 | |
| 223 | return msStyle; |
| 224 | } |
| 225 | |
| 226 | wxSlider::~wxSlider() |
| 227 | { |
| 228 | delete m_labels; |
| 229 | } |
| 230 | |
| 231 | // ---------------------------------------------------------------------------- |
| 232 | // event handling |
| 233 | // ---------------------------------------------------------------------------- |
| 234 | |
| 235 | bool wxSlider::MSWOnScroll(int WXUNUSED(orientation), |
| 236 | WXWORD wParam, |
| 237 | WXWORD WXUNUSED(pos), |
| 238 | WXHWND control) |
| 239 | { |
| 240 | wxEventType scrollEvent; |
| 241 | switch ( wParam ) |
| 242 | { |
| 243 | case SB_TOP: |
| 244 | scrollEvent = wxEVT_SCROLL_TOP; |
| 245 | break; |
| 246 | |
| 247 | case SB_BOTTOM: |
| 248 | scrollEvent = wxEVT_SCROLL_BOTTOM; |
| 249 | break; |
| 250 | |
| 251 | case SB_LINEUP: |
| 252 | scrollEvent = wxEVT_SCROLL_LINEUP; |
| 253 | break; |
| 254 | |
| 255 | case SB_LINEDOWN: |
| 256 | scrollEvent = wxEVT_SCROLL_LINEDOWN; |
| 257 | break; |
| 258 | |
| 259 | case SB_PAGEUP: |
| 260 | scrollEvent = wxEVT_SCROLL_PAGEUP; |
| 261 | break; |
| 262 | |
| 263 | case SB_PAGEDOWN: |
| 264 | scrollEvent = wxEVT_SCROLL_PAGEDOWN; |
| 265 | break; |
| 266 | |
| 267 | case SB_THUMBTRACK: |
| 268 | scrollEvent = wxEVT_SCROLL_THUMBTRACK; |
| 269 | m_isDragging = true; |
| 270 | break; |
| 271 | |
| 272 | case SB_THUMBPOSITION: |
| 273 | if ( m_isDragging ) |
| 274 | { |
| 275 | scrollEvent = wxEVT_SCROLL_THUMBRELEASE; |
| 276 | m_isDragging = false; |
| 277 | } |
| 278 | else |
| 279 | { |
| 280 | // this seems to only happen when the mouse wheel is used: in |
| 281 | // this case, as it might be unexpected to get THUMBRELEASE |
| 282 | // without preceding THUMBTRACKs, we don't generate it at all |
| 283 | // but generate CHANGED event because the control itself does |
| 284 | // not send us SB_ENDSCROLL for whatever reason when mouse |
| 285 | // wheel is used |
| 286 | scrollEvent = wxEVT_SCROLL_CHANGED; |
| 287 | } |
| 288 | break; |
| 289 | |
| 290 | case SB_ENDSCROLL: |
| 291 | scrollEvent = wxEVT_SCROLL_CHANGED; |
| 292 | break; |
| 293 | |
| 294 | default: |
| 295 | // unknown scroll event? |
| 296 | return false; |
| 297 | } |
| 298 | |
| 299 | int newPos = ValueInvertOrNot((int) ::SendMessage((HWND) control, TBM_GETPOS, 0, 0)); |
| 300 | if ( (newPos < GetMin()) || (newPos > GetMax()) ) |
| 301 | { |
| 302 | // out of range - but we did process it |
| 303 | return true; |
| 304 | } |
| 305 | |
| 306 | SetValue(newPos); |
| 307 | |
| 308 | wxScrollEvent event(scrollEvent, m_windowId); |
| 309 | event.SetPosition(newPos); |
| 310 | event.SetEventObject( this ); |
| 311 | HandleWindowEvent(event); |
| 312 | |
| 313 | wxCommandEvent cevent( wxEVT_COMMAND_SLIDER_UPDATED, GetId() ); |
| 314 | cevent.SetInt( newPos ); |
| 315 | cevent.SetEventObject( this ); |
| 316 | |
| 317 | return HandleWindowEvent( cevent ); |
| 318 | } |
| 319 | |
| 320 | void wxSlider::Command (wxCommandEvent & event) |
| 321 | { |
| 322 | SetValue (event.GetInt()); |
| 323 | ProcessCommand (event); |
| 324 | } |
| 325 | |
| 326 | // ---------------------------------------------------------------------------- |
| 327 | // geometry stuff |
| 328 | // ---------------------------------------------------------------------------- |
| 329 | |
| 330 | wxRect wxSlider::GetBoundingBox() const |
| 331 | { |
| 332 | // take care not to call our own functions which would call us recursively |
| 333 | int x, y, w, h; |
| 334 | wxSliderBase::DoGetPosition(&x, &y); |
| 335 | wxSliderBase::DoGetSize(&w, &h); |
| 336 | |
| 337 | wxRect rect(x, y, w, h); |
| 338 | if ( m_labels ) |
| 339 | { |
| 340 | wxRect lrect = m_labels->GetBoundingBox(); |
| 341 | GetParent()->ScreenToClient(&lrect.x, &lrect.y); |
| 342 | rect.Union(lrect); |
| 343 | } |
| 344 | |
| 345 | return rect; |
| 346 | } |
| 347 | |
| 348 | void wxSlider::DoGetSize(int *width, int *height) const |
| 349 | { |
| 350 | wxRect rect = GetBoundingBox(); |
| 351 | |
| 352 | if ( width ) |
| 353 | *width = rect.width; |
| 354 | if ( height ) |
| 355 | *height = rect.height; |
| 356 | } |
| 357 | |
| 358 | void wxSlider::DoGetPosition(int *x, int *y) const |
| 359 | { |
| 360 | wxRect rect = GetBoundingBox(); |
| 361 | |
| 362 | if ( x ) |
| 363 | *x = rect.x; |
| 364 | if ( y ) |
| 365 | *y = rect.y; |
| 366 | } |
| 367 | |
| 368 | int wxSlider::GetLabelsSize(int *widthMin, int *widthMax) const |
| 369 | { |
| 370 | if ( widthMin && widthMax ) |
| 371 | { |
| 372 | *widthMin = GetTextExtent(Format(m_rangeMin)).x; |
| 373 | *widthMax = GetTextExtent(Format(m_rangeMax)).x; |
| 374 | |
| 375 | if ( HasFlag(wxSL_INVERSE) ) |
| 376 | { |
| 377 | wxSwap(*widthMin, *widthMax); |
| 378 | } |
| 379 | } |
| 380 | |
| 381 | return HasFlag(wxSL_LABELS) ? GetCharHeight() : 0; |
| 382 | } |
| 383 | |
| 384 | void wxSlider::DoMoveWindow(int x, int y, int width, int height) |
| 385 | { |
| 386 | // all complications below are because we need to position the labels, |
| 387 | // without them everything is easy |
| 388 | if ( !m_labels ) |
| 389 | { |
| 390 | wxSliderBase::DoMoveWindow(x, y, width, height); |
| 391 | return; |
| 392 | } |
| 393 | |
| 394 | int minLabelWidth, |
| 395 | maxLabelWidth; |
| 396 | const int labelHeight = GetLabelsSize(&minLabelWidth, &maxLabelWidth); |
| 397 | const int longestLabelWidth = wxMax(minLabelWidth, maxLabelWidth); |
| 398 | if ( !HasFlag(wxSL_MIN_MAX_LABELS) ) |
| 399 | { |
| 400 | minLabelWidth = |
| 401 | maxLabelWidth = 0; |
| 402 | } |
| 403 | |
| 404 | int tickOffset = 0; |
| 405 | if ( HasFlag(wxSL_TICKS)) |
| 406 | tickOffset = TICK; |
| 407 | if ( HasFlag(wxSL_BOTH)) |
| 408 | tickOffset *= 2; |
| 409 | |
| 410 | // be careful to position the slider itself after moving the labels as |
| 411 | // otherwise our GetBoundingBox(), which is called from WM_SIZE handler, |
| 412 | // would return a wrong result and wrong size would be cached internally |
| 413 | if ( HasFlag(wxSL_VERTICAL) ) |
| 414 | { |
| 415 | int labelOffset = 0; |
| 416 | int holdTopX; |
| 417 | int holdBottomX; |
| 418 | int xLabel = (wxMax((THUMB + (BORDERPAD * 2)), longestLabelWidth) / 2) - |
| 419 | (longestLabelWidth / 2) + x; |
| 420 | if ( HasFlag(wxSL_LEFT) ) |
| 421 | { |
| 422 | holdTopX = xLabel; |
| 423 | holdBottomX = xLabel - (abs(maxLabelWidth - minLabelWidth) / 2); |
| 424 | } |
| 425 | else // wxSL_RIGHT |
| 426 | { |
| 427 | holdTopX = xLabel + longestLabelWidth + (abs(maxLabelWidth - minLabelWidth) / 2); |
| 428 | holdBottomX = xLabel + longestLabelWidth; |
| 429 | |
| 430 | labelOffset = longestLabelWidth + HGAP; |
| 431 | } |
| 432 | |
| 433 | if ( HasFlag(wxSL_MIN_MAX_LABELS) ) |
| 434 | { |
| 435 | if ( HasFlag(wxSL_INVERSE) ) |
| 436 | { |
| 437 | wxSwap(holdTopX, holdBottomX); |
| 438 | } |
| 439 | |
| 440 | DoMoveSibling((HWND)(*m_labels)[SliderLabel_Min], |
| 441 | holdTopX, |
| 442 | y, |
| 443 | minLabelWidth, labelHeight); |
| 444 | DoMoveSibling((HWND)(*m_labels)[SliderLabel_Max], |
| 445 | holdBottomX, |
| 446 | y + height - labelHeight, |
| 447 | maxLabelWidth, labelHeight); |
| 448 | } |
| 449 | |
| 450 | if ( HasFlag(wxSL_VALUE_LABEL) ) |
| 451 | { |
| 452 | DoMoveSibling((HWND)(*m_labels)[SliderLabel_Value], |
| 453 | x + ( HasFlag(wxSL_LEFT) ? THUMB + tickOffset + HGAP : 0 ), |
| 454 | y + (height - labelHeight)/2, |
| 455 | longestLabelWidth, labelHeight); |
| 456 | } |
| 457 | |
| 458 | // position the slider itself along the left/right edge |
| 459 | wxSliderBase::DoMoveWindow( |
| 460 | x + labelOffset, |
| 461 | y + labelHeight, |
| 462 | THUMB + tickOffset + HGAP, |
| 463 | height - (labelHeight * 2)); |
| 464 | } |
| 465 | else // horizontal |
| 466 | { |
| 467 | int yLabelMinMax = |
| 468 | (y + ((THUMB + tickOffset) / 2)) - (labelHeight / 2); |
| 469 | int xLabelValue = |
| 470 | x + minLabelWidth + |
| 471 | ((width - (minLabelWidth + maxLabelWidth)) / 2) - |
| 472 | (longestLabelWidth / 2); |
| 473 | |
| 474 | int ySlider = y; |
| 475 | |
| 476 | if ( HasFlag(wxSL_VALUE_LABEL) ) |
| 477 | { |
| 478 | DoMoveSibling((HWND)(*m_labels)[SliderLabel_Value], |
| 479 | xLabelValue, |
| 480 | y + (HasFlag(wxSL_BOTTOM) ? 0 : THUMB + tickOffset), |
| 481 | longestLabelWidth, labelHeight); |
| 482 | |
| 483 | if ( HasFlag(wxSL_BOTTOM) ) |
| 484 | { |
| 485 | ySlider += labelHeight; |
| 486 | yLabelMinMax += labelHeight; |
| 487 | } |
| 488 | } |
| 489 | |
| 490 | if ( HasFlag(wxSL_MIN_MAX_LABELS) ) |
| 491 | { |
| 492 | DoMoveSibling((HWND)(*m_labels)[SliderLabel_Min], |
| 493 | x, |
| 494 | yLabelMinMax, |
| 495 | minLabelWidth, labelHeight); |
| 496 | DoMoveSibling((HWND)(*m_labels)[SliderLabel_Max], |
| 497 | x + width - maxLabelWidth, |
| 498 | yLabelMinMax, |
| 499 | maxLabelWidth, labelHeight); |
| 500 | } |
| 501 | |
| 502 | // position the slider itself along the top/bottom edge |
| 503 | wxSliderBase::DoMoveWindow( |
| 504 | x + minLabelWidth + VGAP, |
| 505 | ySlider, |
| 506 | width - (minLabelWidth + maxLabelWidth + (VGAP*2)), |
| 507 | THUMB + tickOffset); |
| 508 | } |
| 509 | } |
| 510 | |
| 511 | wxSize wxSlider::DoGetBestSize() const |
| 512 | { |
| 513 | // this value is arbitrary: |
| 514 | static const int length = 100; |
| 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 widthMin, |
| 527 | widthMax; |
| 528 | int hLabel = GetLabelsSize(&widthMin, &widthMax); |
| 529 | |
| 530 | // account for the labels |
| 531 | if ( HasFlag(wxSL_MIN_MAX_LABELS) ) |
| 532 | size.x += HGAP + wxMax(widthMin, widthMax); |
| 533 | |
| 534 | // labels are indented relative to the slider itself |
| 535 | size.y += hLabel; |
| 536 | } |
| 537 | } |
| 538 | else // horizontal |
| 539 | { |
| 540 | size.x = length; |
| 541 | size.y = THUMB; |
| 542 | width = &size.y; |
| 543 | |
| 544 | if ( m_labels ) |
| 545 | { |
| 546 | int labelSize = GetLabelsSize(); |
| 547 | |
| 548 | // Min/max labels are compensated by the ticks so we don't need |
| 549 | // extra space for them if we're also showing ticks. |
| 550 | if ( HasFlag(wxSL_MIN_MAX_LABELS) && !HasFlag(wxSL_TICKS) ) |
| 551 | size.y += labelSize; |
| 552 | |
| 553 | // The value label is always on top of the control and so does need |
| 554 | // extra space in any case. |
| 555 | if ( HasFlag(wxSL_VALUE_LABEL) ) |
| 556 | size.y += labelSize; |
| 557 | } |
| 558 | } |
| 559 | |
| 560 | // need extra space to show ticks |
| 561 | if ( HasFlag(wxSL_TICKS) ) |
| 562 | { |
| 563 | *width += TICK; |
| 564 | // and maybe twice as much if we show them on both sides |
| 565 | if ( HasFlag(wxSL_BOTH) ) |
| 566 | *width += TICK; |
| 567 | } |
| 568 | return size; |
| 569 | } |
| 570 | |
| 571 | // ---------------------------------------------------------------------------- |
| 572 | // slider-specific methods |
| 573 | // ---------------------------------------------------------------------------- |
| 574 | |
| 575 | int wxSlider::GetValue() const |
| 576 | { |
| 577 | return ValueInvertOrNot(::SendMessage(GetHwnd(), TBM_GETPOS, 0, 0)); |
| 578 | } |
| 579 | |
| 580 | void wxSlider::SetValue(int value) |
| 581 | { |
| 582 | ::SendMessage(GetHwnd(), TBM_SETPOS, (WPARAM)TRUE, (LPARAM)ValueInvertOrNot(value)); |
| 583 | |
| 584 | if ( m_labels ) |
| 585 | { |
| 586 | ::SetWindowText((*m_labels)[SliderLabel_Value], Format(value).t_str()); |
| 587 | } |
| 588 | } |
| 589 | |
| 590 | void wxSlider::SetRange(int minValue, int maxValue) |
| 591 | { |
| 592 | // Remember the old logical value if we need to update the physical control |
| 593 | // value after changing its range in wxSL_INVERSE case (and avoid an |
| 594 | // unnecessary call to GetValue() otherwise as it's just not needed). |
| 595 | const int valueOld = HasFlag(wxSL_INVERSE) ? GetValue() : 0; |
| 596 | |
| 597 | m_rangeMin = minValue; |
| 598 | m_rangeMax = maxValue; |
| 599 | |
| 600 | ::SendMessage(GetHwnd(), TBM_SETRANGEMIN, TRUE, m_rangeMin); |
| 601 | ::SendMessage(GetHwnd(), TBM_SETRANGEMAX, TRUE, m_rangeMax); |
| 602 | |
| 603 | if ( m_labels ) |
| 604 | { |
| 605 | ::SetWindowText((*m_labels)[SliderLabel_Min], |
| 606 | Format(ValueInvertOrNot(m_rangeMin)).t_str()); |
| 607 | ::SetWindowText((*m_labels)[SliderLabel_Max], |
| 608 | Format(ValueInvertOrNot(m_rangeMax)).t_str()); |
| 609 | } |
| 610 | |
| 611 | // When emulating wxSL_INVERSE style in wxWidgets, we need to update the |
| 612 | // value after changing the range to ensure that the value seen by the user |
| 613 | // code, i.e. the one returned by GetValue(), does not change. |
| 614 | if ( HasFlag(wxSL_INVERSE) ) |
| 615 | { |
| 616 | ::SendMessage(GetHwnd(), TBM_SETPOS, TRUE, ValueInvertOrNot(valueOld)); |
| 617 | } |
| 618 | } |
| 619 | |
| 620 | void wxSlider::DoSetTickFreq(int n) |
| 621 | { |
| 622 | m_tickFreq = n; |
| 623 | ::SendMessage( GetHwnd(), TBM_SETTICFREQ, (WPARAM) n, (LPARAM) 0 ); |
| 624 | } |
| 625 | |
| 626 | void wxSlider::SetPageSize(int pageSize) |
| 627 | { |
| 628 | ::SendMessage( GetHwnd(), TBM_SETPAGESIZE, (WPARAM) 0, (LPARAM) pageSize ); |
| 629 | m_pageSize = pageSize; |
| 630 | } |
| 631 | |
| 632 | int wxSlider::GetPageSize() const |
| 633 | { |
| 634 | return m_pageSize; |
| 635 | } |
| 636 | |
| 637 | void wxSlider::ClearSel() |
| 638 | { |
| 639 | ::SendMessage(GetHwnd(), TBM_CLEARSEL, (WPARAM) TRUE, (LPARAM) 0); |
| 640 | } |
| 641 | |
| 642 | void wxSlider::ClearTicks() |
| 643 | { |
| 644 | ::SendMessage(GetHwnd(), TBM_CLEARTICS, (WPARAM) TRUE, (LPARAM) 0); |
| 645 | } |
| 646 | |
| 647 | void wxSlider::SetLineSize(int lineSize) |
| 648 | { |
| 649 | m_lineSize = lineSize; |
| 650 | ::SendMessage(GetHwnd(), TBM_SETLINESIZE, (WPARAM) 0, (LPARAM) lineSize); |
| 651 | } |
| 652 | |
| 653 | int wxSlider::GetLineSize() const |
| 654 | { |
| 655 | return (int)::SendMessage(GetHwnd(), TBM_GETLINESIZE, 0, 0); |
| 656 | } |
| 657 | |
| 658 | int wxSlider::GetSelEnd() const |
| 659 | { |
| 660 | return (int)::SendMessage(GetHwnd(), TBM_GETSELEND, 0, 0); |
| 661 | } |
| 662 | |
| 663 | int wxSlider::GetSelStart() const |
| 664 | { |
| 665 | return (int)::SendMessage(GetHwnd(), TBM_GETSELSTART, 0, 0); |
| 666 | } |
| 667 | |
| 668 | void wxSlider::SetSelection(int minPos, int maxPos) |
| 669 | { |
| 670 | ::SendMessage(GetHwnd(), TBM_SETSEL, |
| 671 | (WPARAM) TRUE /* redraw */, |
| 672 | (LPARAM) MAKELONG( minPos, maxPos) ); |
| 673 | } |
| 674 | |
| 675 | void wxSlider::SetThumbLength(int len) |
| 676 | { |
| 677 | ::SendMessage(GetHwnd(), TBM_SETTHUMBLENGTH, (WPARAM) len, (LPARAM) 0); |
| 678 | } |
| 679 | |
| 680 | int wxSlider::GetThumbLength() const |
| 681 | { |
| 682 | return (int)::SendMessage( GetHwnd(), TBM_GETTHUMBLENGTH, 0, 0); |
| 683 | } |
| 684 | |
| 685 | void wxSlider::SetTick(int tickPos) |
| 686 | { |
| 687 | ::SendMessage( GetHwnd(), TBM_SETTIC, (WPARAM) 0, (LPARAM) tickPos ); |
| 688 | } |
| 689 | |
| 690 | // ---------------------------------------------------------------------------- |
| 691 | // composite control methods |
| 692 | // ---------------------------------------------------------------------------- |
| 693 | |
| 694 | WXHWND wxSlider::GetStaticMin() const |
| 695 | { |
| 696 | return m_labels ? (WXHWND)(*m_labels)[SliderLabel_Min] : NULL; |
| 697 | } |
| 698 | |
| 699 | WXHWND wxSlider::GetStaticMax() const |
| 700 | { |
| 701 | return m_labels ? (WXHWND)(*m_labels)[SliderLabel_Max] : NULL; |
| 702 | } |
| 703 | |
| 704 | WXHWND wxSlider::GetEditValue() const |
| 705 | { |
| 706 | return m_labels ? (WXHWND)(*m_labels)[SliderLabel_Value] : NULL; |
| 707 | } |
| 708 | |
| 709 | WX_FORWARD_STD_METHODS_TO_SUBWINDOWS(wxSlider, wxSliderBase, m_labels) |
| 710 | |
| 711 | #endif // wxUSE_SLIDER |