dlls/comctl32/trackbar.c

   1 /*
   2  * Trackbar control
   3  *
   4  * Copyright 1998, 1999 Eric Kohl <ekohl@abo.rhein-zeitung.de>
   5  * Copyright 1998,1999 Alex Priem <alexp@sci.kun.nl>
   6  *
   7  *
   8  * TODO:
   9  *   - Some messages.
  10  *   - more display code.
  11  *   - handle dragging slider better
  12  *   - better tic handling.
  13  *   - more notifications.
  14  *
  15  */
  16
  17 /* known bugs:
  18
  19    -TBM_SETRANGEMAX & TBM_SETRANGEMIN should only change the view of the
  20    trackbar, not the actual amount of tics in the list.
  21    -TBM_GETTIC & TBM_GETTICPOS shouldn't rely on infoPtr->tics being sorted.
  22    - Make drawing code exact match of w95 drawing.
  23 */
  24
  25
  26 #include <stdio.h>
  27
  28 #include "winbase.h"
  29 #include "commctrl.h"
  30 #include "trackbar.h"
  31 #include "debugtools.h"
  32
  33 DEFAULT_DEBUG_CHANNEL(trackbar);
  34
  35
  36 #define TRACKBAR_GetInfoPtr(wndPtr) ((TRACKBAR_INFO *)GetWindowLongA (hwnd,0))
  37
  38
  39 /* Used by TRACKBAR_Refresh to find out which parts of the control
  40    need to be recalculated */
  41
  42 #define TB_THUMBPOSCHANGED      1
  43 #define TB_THUMBSIZECHANGED     2
  44 #define TB_THUMBCHANGED         (TB_THUMBPOSCHANGED | TB_THUMBPOSCHANGED)
  45 #define TB_SELECTIONCHANGED     4
  46 #define TB_DRAG_MODE            16     /* we're dragging the slider */
  47 #define TB_DRAGPOSVALID         32     /* current Position is in dragPos */
  48 #define TB_SHOW_TOOLTIP         64     /* tooltip-style enabled and tooltip on */
  49
  50 /* helper defines for TRACKBAR_DrawTic */
  51 #define TIC_LEFTEDGE            0x20
  52 #define TIC_RIGHTEDGE           0x40
  53 #define TIC_EDGE                (TIC_LEFTEDGE | TIC_RIGHTEDGE)
  54 #define TIC_SELECTIONMARKMAX    0x80
  55 #define TIC_SELECTIONMARKMIN    0x100
  56 #define TIC_SELECTIONMARK       (TIC_SELECTIONMARKMAX | TIC_SELECTIONMARKMIN)
  57
  58 static BOOL TRACKBAR_SendNotify (HWND hwnd, UINT code);
  59
  60 static void TRACKBAR_RecalculateTics (TRACKBAR_INFO *infoPtr)
  61 {
  62     int i,tic,nrTics;
  63
  64     if (infoPtr->uTicFreq && infoPtr->nRangeMax >= infoPtr->nRangeMin)
  65         nrTics=(infoPtr->nRangeMax - infoPtr->nRangeMin)/infoPtr->uTicFreq;
  66     else {
  67         nrTics=0;
  68         COMCTL32_Free (infoPtr->tics);
  69         infoPtr->tics=NULL;
  70         infoPtr->uNumTics=0;
  71         return;
  72     }
  73
  74     if (nrTics!=infoPtr->uNumTics) {
  75         infoPtr->tics=COMCTL32_ReAlloc (infoPtr->tics,
  76                                         (nrTics+1)*sizeof (DWORD));
  77         infoPtr->uNumTics=nrTics;
  78     }
  79     infoPtr->uNumTics=nrTics;
  80     tic=infoPtr->nRangeMin+infoPtr->uTicFreq;
  81     for (i=0; i<nrTics; i++,tic+=infoPtr->uTicFreq)
  82         infoPtr->tics[i]=tic;
  83 }
  84
  85
  86 /* converts from physical (mouse) position to logical position
  87    (in range of trackbar) */
  88
  89 static inline DOUBLE
  90 TRACKBAR_ConvertPlaceToPosition (TRACKBAR_INFO *infoPtr, int place,
  91                                  int vertical)
  92 {
  93     double range,width,pos;
  94
  95     range=infoPtr->nRangeMax - infoPtr->nRangeMin;
  96     if (vertical) {
  97         width=infoPtr->rcChannel.bottom - infoPtr->rcChannel.top;
  98         pos=(range*(place - infoPtr->rcChannel.top)) / width;
  99     } else {
 100         width=infoPtr->rcChannel.right - infoPtr->rcChannel.left;
 101         pos=(range*(place - infoPtr->rcChannel.left)) / width;
 102     }
 103
 104     if (pos > infoPtr->nRangeMax)
 105         pos = infoPtr->nRangeMax;
 106     else if (pos < infoPtr->nRangeMin)
 107         pos = infoPtr->nRangeMin;
 108
 109     TRACE("%.2f\n",pos);
 110     return pos;
 111 }
 112
 113
 114 static VOID
 115 TRACKBAR_CalcChannel (HWND hwnd, TRACKBAR_INFO *infoPtr)
 116 {
 117     DWORD dwStyle = GetWindowLongA (hwnd, GWL_STYLE);
 118     INT cyChannel;
 119     RECT lpRect,*channel = & infoPtr->rcChannel;
 120
 121     GetClientRect (hwnd, &lpRect);
 122
 123     if (dwStyle & TBS_ENABLESELRANGE)
 124         cyChannel = max(infoPtr->uThumbLen - 8, 4);
 125     else
 126         cyChannel = 4;
 127
 128     if (dwStyle & TBS_VERT) {
 129         channel->top    = lpRect.top + 8;
 130         channel->bottom = lpRect.bottom - 8;
 131
 132         if (dwStyle & TBS_BOTH) {
 133             channel->left  = (lpRect.right - cyChannel) / 2;
 134             channel->right = (lpRect.right + cyChannel) / 2;
 135         }
 136         else if (dwStyle & TBS_LEFT) {
 137             channel->left  = lpRect.left + 10;
 138             channel->right = channel->left + cyChannel;
 139         }
 140         else { /* TBS_RIGHT */
 141             channel->right = lpRect.right - 10;
 142             channel->left  = channel->right - cyChannel;
 143         }
 144     }
 145     else {
 146         channel->left = lpRect.left + 8;
 147         channel->right = lpRect.right - 8;
 148         if (dwStyle & TBS_BOTH) {
 149             channel->top                = (lpRect.bottom - cyChannel) / 2;
 150             channel->bottom     = (lpRect.bottom + cyChannel) / 2;
 151         }
 152         else if (dwStyle & TBS_TOP) {
 153             channel->top    = lpRect.top + 10;
 154             channel->bottom = channel->top + cyChannel;
 155         }
 156         else { /* TBS_BOTTOM */
 157             channel->bottom = lpRect.bottom - 10;
 158             channel->top    = channel->bottom - cyChannel;
 159         }
 160     }
 161 }
 162
 163 static VOID
 164 TRACKBAR_CalcThumb (HWND hwnd, TRACKBAR_INFO *infoPtr)
 165 {
 166     RECT *thumb;
 167     int range, width;
 168
 169     thumb=&infoPtr->rcThumb;
 170     range=infoPtr->nRangeMax - infoPtr->nRangeMin;
 171     if (!range) return; /* FIXME: may this happen? */
 172     if (GetWindowLongA (hwnd, GWL_STYLE) & TBS_VERT) {
 173         width=infoPtr->rcChannel.bottom - infoPtr->rcChannel.top;
 174         thumb->left  = infoPtr->rcChannel.left - 1;
 175         thumb->right  = infoPtr->rcChannel.left + infoPtr->uThumbLen - 8;
 176         thumb->top       = infoPtr->rcChannel.top +
 177             (width*infoPtr->nPos)/range - 5;
 178         thumb->bottom = thumb->top + infoPtr->uThumbLen/3;
 179
 180     } else {
 181         width=infoPtr->rcChannel.right - infoPtr->rcChannel.left;
 182         thumb->left   = infoPtr->rcChannel.left +
 183             (width*infoPtr->nPos)/range - 5;
 184         thumb->right  = thumb->left + infoPtr->uThumbLen/3;
 185         thumb->top        = infoPtr->rcChannel.top - 1;
 186         thumb->bottom = infoPtr->rcChannel.top + infoPtr->uThumbLen - 8;
 187     }
 188 }
 189
 190 static VOID
 191 TRACKBAR_CalcSelection (HWND hwnd, TRACKBAR_INFO *infoPtr)
 192 {
 193     RECT *selection;
 194     int range, width;
 195
 196     selection= & infoPtr->rcSelection;
 197     range=infoPtr->nRangeMax - infoPtr->nRangeMin;
 198     width=infoPtr->rcChannel.right - infoPtr->rcChannel.left;
 199
 200     if (range <= 0)
 201         SetRectEmpty (selection);
 202     else
 203         if (GetWindowLongA (hwnd, GWL_STYLE) & TBS_VERT) {
 204             selection->left   = infoPtr->rcChannel.left +
 205                 (width*infoPtr->nSelMin)/range;
 206             selection->right  = infoPtr->rcChannel.left +
 207                 (width*infoPtr->nSelMax)/range;
 208             selection->top    = infoPtr->rcChannel.top + 2;
 209             selection->bottom = infoPtr->rcChannel.bottom - 2;
 210         } else {
 211             selection->top    = infoPtr->rcChannel.top +
 212                 (width*infoPtr->nSelMin)/range;
 213             selection->bottom = infoPtr->rcChannel.top +
 214                 (width*infoPtr->nSelMax)/range;
 215             selection->left   = infoPtr->rcChannel.left + 2;
 216             selection->right  = infoPtr->rcChannel.right - 2;
 217         }
 218 }
 219
 220 /* Trackbar drawing code. I like my spaghetti done milanese.  */
 221
 222 /* ticPos is in tic-units, not in pixels */
 223
 224 static VOID
 225 TRACKBAR_DrawHorizTic (TRACKBAR_INFO *infoPtr, HDC hdc, LONG ticPos,
 226                        int flags, COLORREF clrTic)
 227 {
 228     RECT rcChannel=infoPtr->rcChannel;
 229     int x,y,width,range,side;
 230
 231     range=infoPtr->nRangeMax - infoPtr->nRangeMin;
 232     width=rcChannel.right - rcChannel.left;
 233
 234     if (flags & TBS_TOP) {
 235         y=rcChannel.top-2;
 236         side=-1;
 237     } else {
 238         y=rcChannel.bottom+2;
 239         side=1;
 240     }
 241
 242     if (flags & TIC_SELECTIONMARK) {
 243         if (flags & TIC_SELECTIONMARKMIN)
 244             x=rcChannel.left + (width*ticPos)/range - 1;
 245         else
 246             x=rcChannel.left + (width*ticPos)/range + 1;
 247
 248         SetPixel (hdc, x,y+6*side, clrTic);
 249         SetPixel (hdc, x,y+7*side, clrTic);
 250         return;
 251     }
 252
 253     if ((ticPos>infoPtr->nRangeMin) && (ticPos<infoPtr->nRangeMax)) {
 254         x=rcChannel.left + (width*ticPos)/range;
 255         SetPixel (hdc, x,y+5*side, clrTic);
 256         SetPixel (hdc, x,y+6*side, clrTic);
 257         SetPixel (hdc, x,y+7*side, clrTic);
 258     }
 259
 260     if (flags & TIC_EDGE) {
 261         if (flags & TIC_LEFTEDGE)
 262             x=rcChannel.left;
 263         else
 264             x=rcChannel.right;
 265
 266         SetPixel (hdc, x,y+5*side, clrTic);
 267         SetPixel (hdc, x,y+6*side, clrTic);
 268         SetPixel (hdc, x,y+7*side, clrTic);
 269         SetPixel (hdc, x,y+8*side, clrTic);
 270     }
 271
 272 }
 273
 274 static VOID
 275 TRACKBAR_DrawVertTic (TRACKBAR_INFO *infoPtr, HDC hdc, LONG ticPos,
 276                       int flags, COLORREF clrTic)
 277 {
 278     RECT rcChannel=infoPtr->rcChannel;
 279     int x,y,width,range,side;
 280
 281     range=infoPtr->nRangeMax - infoPtr->nRangeMin;
 282     width=rcChannel.bottom - rcChannel.top;
 283
 284     if (flags & TBS_TOP) {
 285         x=rcChannel.right-2;
 286         side=-1;
 287     } else {
 288         x=rcChannel.left+2;
 289         side=1;
 290     }
 291
 292
 293     if (flags & TIC_SELECTIONMARK) {
 294         if (flags & TIC_SELECTIONMARKMIN)
 295             y=rcChannel.top + (width*ticPos)/range - 1;
 296         else
 297             y=rcChannel.top + (width*ticPos)/range + 1;
 298
 299         SetPixel (hdc, x+6*side, y, clrTic);
 300         SetPixel (hdc, x+7*side, y, clrTic);
 301         return;
 302     }
 303
 304     if ((ticPos>infoPtr->nRangeMin) && (ticPos<infoPtr->nRangeMax)) {
 305         y=rcChannel.top + (width*ticPos)/range;
 306         SetPixel (hdc, x+5*side, y, clrTic);
 307         SetPixel (hdc, x+6*side, y, clrTic);
 308         SetPixel (hdc, x+7*side, y, clrTic);
 309     }
 310
 311     if (flags & TIC_EDGE) {
 312         if (flags & TIC_LEFTEDGE)
 313             y=rcChannel.top;
 314         else
 315             y=rcChannel.bottom;
 316
 317         SetPixel (hdc, x+5*side, y, clrTic);
 318         SetPixel (hdc, x+6*side, y, clrTic);
 319         SetPixel (hdc, x+7*side, y, clrTic);
 320         SetPixel (hdc, x+8*side, y, clrTic);
 321     }
 322
 323 }
 324
 325
 326 static VOID
 327 TRACKBAR_DrawTics (TRACKBAR_INFO *infoPtr, HDC hdc, LONG ticPos,
 328                    int flags, COLORREF clrTic)
 329 {
 330
 331     if (flags & TBS_VERT) {
 332         if ((flags & TBS_TOP) || (flags & TBS_BOTH))
 333             TRACKBAR_DrawVertTic (infoPtr, hdc, ticPos,
 334                                   flags | TBS_TOP , clrTic);
 335         if (!(flags & TBS_TOP) || (flags & TBS_BOTH))
 336             TRACKBAR_DrawVertTic (infoPtr, hdc, ticPos, flags, clrTic);
 337         return;
 338     }
 339
 340     if ((flags & TBS_TOP) || (flags & TBS_BOTH))
 341         TRACKBAR_DrawHorizTic (infoPtr, hdc, ticPos, flags | TBS_TOP , clrTic);
 342
 343     if (!(flags & TBS_TOP) || (flags & TBS_BOTH))
 344         TRACKBAR_DrawHorizTic (infoPtr, hdc, ticPos, flags, clrTic);
 345
 346 }
 347
 348
 349 static VOID
 350 TRACKBAR_Refresh (HWND hwnd, HDC hdc)
 351 {
 352     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 353     DWORD dwStyle = GetWindowLongA (hwnd, GWL_STYLE);
 354     RECT rcClient, rcChannel, rcSelection;
 355     HBRUSH hBrush;
 356     int i;
 357
 358     GetClientRect (hwnd, &rcClient);
 359     hBrush = CreateSolidBrush (infoPtr->clrBk);
 360     FillRect (hdc, &rcClient, hBrush);
 361     DeleteObject (hBrush);
 362
 363     if (infoPtr->flags & TB_DRAGPOSVALID)  {
 364         infoPtr->nPos=infoPtr->dragPos;
 365         infoPtr->flags |= TB_THUMBPOSCHANGED;
 366     }
 367
 368     if (infoPtr->flags & TB_THUMBCHANGED) {
 369         TRACKBAR_CalcThumb      (hwnd, infoPtr);
 370         if (infoPtr->flags & TB_THUMBSIZECHANGED)
 371             TRACKBAR_CalcChannel (hwnd, infoPtr);
 372     }
 373     if (infoPtr->flags & TB_SELECTIONCHANGED)
 374         TRACKBAR_CalcSelection (hwnd, infoPtr);
 375     infoPtr->flags &= ~ (TB_THUMBCHANGED | TB_SELECTIONCHANGED |
 376                          TB_DRAGPOSVALID);
 377
 378     /* draw channel */
 379
 380     rcChannel = infoPtr->rcChannel;
 381     rcSelection= infoPtr->rcSelection;
 382     DrawEdge (hdc, &rcChannel, EDGE_SUNKEN, BF_RECT | BF_ADJUST);
 383
 384     if (dwStyle & TBS_ENABLESELRANGE) {          /* fill the channel */
 385         HBRUSH hbr = CreateSolidBrush (RGB(255,255,255));
 386         FillRect (hdc, &rcChannel, hbr);
 387         if (((dwStyle & TBS_VERT) &&
 388              (rcSelection.left!=rcSelection.right)) ||
 389             ((!(dwStyle & TBS_VERT)) &&
 390              (rcSelection.left!=rcSelection.right))) {
 391             hbr=CreateSolidBrush (COLOR_HIGHLIGHT);
 392             FillRect (hdc, &rcSelection, hbr);
 393         }
 394         DeleteObject (hbr);
 395     }
 396
 397
 398     /* draw tics */
 399
 400     if (!(dwStyle & TBS_NOTICKS)) {
 401         int ticFlags = dwStyle & 0x0f;
 402         COLORREF clrTic=GetSysColor (COLOR_3DDKSHADOW);
 403
 404         for (i=0; i<infoPtr->uNumTics; i++)
 405             TRACKBAR_DrawTics (infoPtr, hdc, infoPtr->tics[i],
 406                                ticFlags, clrTic);
 407
 408         TRACKBAR_DrawTics (infoPtr, hdc, 0, ticFlags | TIC_LEFTEDGE, clrTic);
 409         TRACKBAR_DrawTics (infoPtr, hdc, 0, ticFlags | TIC_RIGHTEDGE, clrTic);
 410
 411         if ((dwStyle & TBS_ENABLESELRANGE) &&
 412             (rcSelection.left!=rcSelection.right)) {
 413             TRACKBAR_DrawTics (infoPtr, hdc, infoPtr->nSelMin,
 414                                ticFlags | TIC_SELECTIONMARKMIN, clrTic);
 415             TRACKBAR_DrawTics (infoPtr, hdc, infoPtr->nSelMax,
 416                                ticFlags | TIC_SELECTIONMARKMAX, clrTic);
 417         }
 418     }
 419
 420     /* draw thumb */
 421
 422     if (!(dwStyle & TBS_NOTHUMB)) {
 423
 424         HBRUSH hbr = CreateSolidBrush (COLOR_BTNFACE);
 425         RECT thumb = infoPtr->rcThumb;
 426
 427         SelectObject (hdc, hbr);
 428
 429         if (dwStyle & TBS_BOTH) {
 430             FillRect (hdc, &thumb, hbr);
 431             DrawEdge (hdc, &thumb, EDGE_RAISED, BF_TOPLEFT);
 432         } else {
 433             POINT points[5];
 434
 435             /* first, fill the thumb */
 436             /* FIXME: revamp. check for TBS_VERT */
 437
 438             SetPolyFillMode (hdc,WINDING);
 439             points[0].x=thumb.left;
 440             points[0].y=thumb.top;
 441             points[1].x=thumb.right - 1;
 442             points[1].y=thumb.top;
 443             points[2].x=thumb.right - 1;
 444             points[2].y=thumb.bottom -2;
 445             points[3].x=thumb.left;
 446             points[3].y=thumb.bottom -2;
 447             points[4].x=points[0].x;
 448             points[4].y=points[0].y;
 449             Polygon (hdc, points, 5);
 450
 451             if (dwStyle & TBS_VERT) {
 452                 /*   draw edge  */
 453             } else {
 454                 DrawEdge (hdc, &thumb, EDGE_RAISED, BF_TOPLEFT);
 455             }
 456         }
 457         DeleteObject (hbr);
 458     }
 459
 460     if (infoPtr->bFocus)
 461         DrawFocusRect (hdc, &rcClient);
 462 }
 463
 464
 465 static VOID
 466 TRACKBAR_AlignBuddies (HWND hwnd, TRACKBAR_INFO *infoPtr)
 467 {
 468     DWORD dwStyle = GetWindowLongA (hwnd, GWL_STYLE);
 469     HWND hwndParent = GetParent (hwnd);
 470     RECT rcSelf, rcBuddy;
 471     INT x, y;
 472
 473     GetWindowRect (hwnd, &rcSelf);
 474     MapWindowPoints (HWND_DESKTOP, hwndParent, (LPPOINT)&rcSelf, 2);
 475
 476     /* align buddy left or above */
 477     if (infoPtr->hwndBuddyLA) {
 478         GetWindowRect (infoPtr->hwndBuddyLA, &rcBuddy);
 479         MapWindowPoints (HWND_DESKTOP, hwndParent, (LPPOINT)&rcBuddy, 2);
 480
 481         if (dwStyle & TBS_VERT) {
 482             x = (infoPtr->rcChannel.right + infoPtr->rcChannel.left) / 2 -
 483                 (rcBuddy.right - rcBuddy.left) / 2 + rcSelf.left;
 484             y = rcSelf.top - (rcBuddy.bottom - rcBuddy.top);
 485         }
 486         else {
 487             x = rcSelf.left - (rcBuddy.right - rcBuddy.left);
 488             y = (infoPtr->rcChannel.bottom + infoPtr->rcChannel.top) / 2 -
 489                 (rcBuddy.bottom - rcBuddy.top) / 2 + rcSelf.top;
 490         }
 491
 492         SetWindowPos (infoPtr->hwndBuddyLA, 0, x, y, 0, 0,
 493                       SWP_NOZORDER | SWP_NOSIZE);
 494     }
 495
 496
 497     /* align buddy right or below */
 498     if (infoPtr->hwndBuddyRB) {
 499         GetWindowRect (infoPtr->hwndBuddyRB, &rcBuddy);
 500         MapWindowPoints (HWND_DESKTOP, hwndParent, (LPPOINT)&rcBuddy, 2);
 501
 502         if (dwStyle & TBS_VERT) {
 503             x = (infoPtr->rcChannel.right + infoPtr->rcChannel.left) / 2 -
 504                 (rcBuddy.right - rcBuddy.left) / 2 + rcSelf.left;
 505             y = rcSelf.bottom;
 506         }
 507         else {
 508             x = rcSelf.right;
 509             y = (infoPtr->rcChannel.bottom + infoPtr->rcChannel.top) / 2 -
 510                 (rcBuddy.bottom - rcBuddy.top) / 2 + rcSelf.top;
 511         }
 512         SetWindowPos (infoPtr->hwndBuddyRB, 0, x, y, 0, 0,
 513                       SWP_NOZORDER | SWP_NOSIZE);
 514     }
 515 }
 516
 517
 518 static LRESULT
 519 TRACKBAR_ClearSel (HWND hwnd, WPARAM wParam, LPARAM lParam)
 520 {
 521     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 522
 523     infoPtr->nSelMin = 0;
 524     infoPtr->nSelMax = 0;
 525     infoPtr->flags |= TB_SELECTIONCHANGED;
 526
 527     if ((BOOL)wParam)
 528         InvalidateRect (hwnd, NULL, FALSE);
 529
 530     return 0;
 531 }
 532
 533
 534 static LRESULT
 535 TRACKBAR_ClearTics (HWND hwnd, WPARAM wParam, LPARAM lParam)
 536 {
 537     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 538
 539     if (infoPtr->tics) {
 540         COMCTL32_Free (infoPtr->tics);
 541         infoPtr->tics = NULL;
 542         infoPtr->uNumTics = 0;
 543     }
 544
 545     if (wParam)
 546         InvalidateRect (hwnd, NULL, FALSE);
 547
 548     return 0;
 549 }
 550
 551
 552 static LRESULT
 553 TRACKBAR_GetBuddy (HWND hwnd, WPARAM wParam, LPARAM lParam)
 554 {
 555     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 556
 557     if (wParam)  /* buddy is left or above */
 558         return (LRESULT)infoPtr->hwndBuddyLA;
 559
 560     /* buddy is right or below */
 561     return (LRESULT) infoPtr->hwndBuddyRB;
 562 }
 563
 564
 565 static LRESULT
 566 TRACKBAR_GetChannelRect (HWND hwnd, WPARAM wParam, LPARAM lParam)
 567 {
 568     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 569     LPRECT lprc = (LPRECT)lParam;
 570
 571     if (lprc == NULL)
 572         return 0;
 573
 574     lprc->left   = infoPtr->rcChannel.left;
 575     lprc->right  = infoPtr->rcChannel.right;
 576     lprc->bottom = infoPtr->rcChannel.bottom;
 577     lprc->top    = infoPtr->rcChannel.top;
 578
 579     return 0;
 580 }
 581
 582
 583 static LRESULT
 584 TRACKBAR_GetLineSize (HWND hwnd, WPARAM wParam, LPARAM lParam)
 585 {
 586     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 587
 588     return infoPtr->nLineSize;
 589 }
 590
 591
 592 static LRESULT
 593 TRACKBAR_GetNumTics (HWND hwnd, WPARAM wParam, LPARAM lParam)
 594 {
 595     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 596
 597     if (GetWindowLongA (hwnd, GWL_STYLE) & TBS_NOTICKS)
 598         return 0;
 599
 600     return infoPtr->uNumTics+2;
 601 }
 602
 603
 604 static LRESULT
 605 TRACKBAR_GetPageSize (HWND hwnd, WPARAM wParam, LPARAM lParam)
 606 {
 607     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 608
 609     return infoPtr->nPageSize;
 610 }
 611
 612
 613 static LRESULT
 614 TRACKBAR_GetPos (HWND hwnd, WPARAM wParam, LPARAM lParam)
 615 {
 616     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 617
 618     return infoPtr->nPos;
 619 }
 620
 621
 622 static LRESULT
 623 TRACKBAR_GetRangeMax (HWND hwnd, WPARAM wParam, LPARAM lParam)
 624 {
 625     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 626
 627     return infoPtr->nRangeMax;
 628 }
 629
 630
 631 static LRESULT
 632 TRACKBAR_GetRangeMin (HWND hwnd, WPARAM wParam, LPARAM lParam)
 633 {
 634     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 635
 636     return infoPtr->nRangeMin;
 637 }
 638
 639
 640 static LRESULT
 641 TRACKBAR_GetSelEnd (HWND hwnd, WPARAM wParam, LPARAM lParam)
 642 {
 643     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 644
 645     return infoPtr->nSelMax;
 646 }
 647
 648
 649 static LRESULT
 650 TRACKBAR_GetSelStart (HWND hwnd, WPARAM wParam, LPARAM lParam)
 651 {
 652     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 653
 654     return infoPtr->nSelMin;
 655 }
 656
 657
 658 static LRESULT
 659 TRACKBAR_GetThumbLength (HWND hwnd, WPARAM wParam, LPARAM lParam)
 660 {
 661     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 662
 663     return infoPtr->uThumbLen;
 664 }
 665
 666 static LRESULT
 667 TRACKBAR_GetPTics (HWND hwnd)
 668 {
 669     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 670
 671     return (LRESULT) infoPtr->tics;
 672 }
 673
 674 static LRESULT
 675 TRACKBAR_GetThumbRect (HWND hwnd, WPARAM wParam, LPARAM lParam)
 676 {
 677     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 678     LPRECT lprc = (LPRECT)lParam;
 679
 680     if (lprc == NULL)
 681         return 0;
 682
 683     lprc->left   = infoPtr->rcThumb.left;
 684     lprc->right  = infoPtr->rcThumb.right;
 685     lprc->bottom = infoPtr->rcThumb.bottom;
 686     lprc->top    = infoPtr->rcThumb.top;
 687
 688     return 0;
 689 }
 690
 691
 692 static LRESULT
 693 TRACKBAR_GetTic (HWND hwnd, WPARAM wParam, LPARAM lParam)
 694 {
 695     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 696     INT iTic;
 697
 698     iTic=(INT) wParam;
 699     if ((iTic<0) || (iTic>infoPtr->uNumTics))
 700         return -1;
 701
 702     return (LRESULT) infoPtr->tics[iTic];
 703
 704 }
 705
 706
 707 static LRESULT
 708 TRACKBAR_GetTicPos (HWND hwnd, WPARAM wParam, LPARAM lParam)
 709 {
 710     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 711     INT iTic, range, width, pos;
 712
 713
 714     iTic=(INT ) wParam;
 715     if ((iTic<0) || (iTic>infoPtr->uNumTics))
 716         return -1;
 717
 718     range=infoPtr->nRangeMax - infoPtr->nRangeMin;
 719     width=infoPtr->rcChannel.right - infoPtr->rcChannel.left;
 720     pos=infoPtr->rcChannel.left + (width * infoPtr->tics[iTic]) / range;
 721
 722
 723     return (LRESULT) pos;
 724 }
 725
 726
 727 static LRESULT
 728 TRACKBAR_GetToolTips (HWND hwnd, WPARAM wParam, LPARAM lParam)
 729 {
 730     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 731
 732     if (GetWindowLongA (hwnd, GWL_STYLE) & TBS_TOOLTIPS)
 733         return (LRESULT)infoPtr->hwndToolTip;
 734     return 0;
 735 }
 736
 737
 738 /*      case TBM_GETUNICODEFORMAT: */
 739
 740
 741 static LRESULT
 742 TRACKBAR_SetBuddy (HWND hwnd, WPARAM wParam, LPARAM lParam)
 743 {
 744     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 745     HWND hwndTemp;
 746
 747     if (wParam) {
 748         /* buddy is left or above */
 749         hwndTemp = infoPtr->hwndBuddyLA;
 750         infoPtr->hwndBuddyLA = (HWND)lParam;
 751
 752         FIXME("move buddy!\n");
 753     }
 754     else {
 755         /* buddy is right or below */
 756         hwndTemp = infoPtr->hwndBuddyRB;
 757         infoPtr->hwndBuddyRB = (HWND)lParam;
 758
 759         FIXME("move buddy!\n");
 760     }
 761
 762     TRACKBAR_AlignBuddies (hwnd, infoPtr);
 763
 764     return (LRESULT)hwndTemp;
 765 }
 766
 767
 768 static LRESULT
 769 TRACKBAR_SetLineSize (HWND hwnd, WPARAM wParam, LPARAM lParam)
 770 {
 771     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 772     INT nTemp = infoPtr->nLineSize;
 773
 774     infoPtr->nLineSize = (INT)lParam;
 775
 776     return nTemp;
 777 }
 778
 779
 780 static LRESULT
 781 TRACKBAR_SetPageSize (HWND hwnd, WPARAM wParam, LPARAM lParam)
 782 {
 783     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 784     INT nTemp = infoPtr->nPageSize;
 785
 786     infoPtr->nPageSize = (INT)lParam;
 787
 788     return nTemp;
 789 }
 790
 791
 792 static LRESULT
 793 TRACKBAR_SetPos (HWND hwnd, WPARAM wParam, LPARAM lParam)
 794 {
 795     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 796
 797     infoPtr->nPos = (INT)LOWORD(lParam);
 798
 799     if (infoPtr->nPos < infoPtr->nRangeMin)
 800         infoPtr->nPos = infoPtr->nRangeMin;
 801
 802     if (infoPtr->nPos > infoPtr->nRangeMax)
 803         infoPtr->nPos = infoPtr->nRangeMax;
 804     infoPtr->flags |= TB_THUMBPOSCHANGED;
 805
 806     if (wParam)
 807         InvalidateRect (hwnd, NULL, FALSE);
 808
 809     return 0;
 810 }
 811
 812
 813 static LRESULT
 814 TRACKBAR_SetRange (HWND hwnd, WPARAM wParam, LPARAM lParam)
 815 {
 816     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 817     infoPtr->nRangeMin = (INT)LOWORD(lParam);
 818     infoPtr->nRangeMax = (INT)HIWORD(lParam);
 819
 820     if (infoPtr->nPos < infoPtr->nRangeMin) {
 821         infoPtr->nPos = infoPtr->nRangeMin;
 822         infoPtr->flags |=TB_THUMBPOSCHANGED;
 823     }
 824
 825     if (infoPtr->nPos > infoPtr->nRangeMax) {
 826         infoPtr->nPos = infoPtr->nRangeMax;
 827         infoPtr->flags |=TB_THUMBPOSCHANGED;
 828     }
 829
 830     infoPtr->nPageSize=(infoPtr->nRangeMax -  infoPtr->nRangeMin)/5;
 831     if (infoPtr->nPageSize == 0)
 832         infoPtr->nPageSize = 1;
 833     TRACKBAR_RecalculateTics (infoPtr);
 834
 835     if (wParam)
 836         InvalidateRect (hwnd, NULL, FALSE);
 837
 838     return 0;
 839 }
 840
 841
 842 static LRESULT
 843 TRACKBAR_SetRangeMax (HWND hwnd, WPARAM wParam, LPARAM lParam)
 844 {
 845     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 846
 847     infoPtr->nRangeMax = (INT)lParam;
 848     if (infoPtr->nPos > infoPtr->nRangeMax) {
 849         infoPtr->nPos = infoPtr->nRangeMax;
 850         infoPtr->flags |=TB_THUMBPOSCHANGED;
 851     }
 852
 853     infoPtr->nPageSize=(infoPtr->nRangeMax -  infoPtr->nRangeMin)/5;
 854     if (infoPtr->nPageSize == 0)
 855         infoPtr->nPageSize = 1;
 856     TRACKBAR_RecalculateTics (infoPtr);
 857
 858     if (wParam)
 859         InvalidateRect (hwnd, NULL, FALSE);
 860
 861     return 0;
 862 }
 863
 864
 865 static LRESULT
 866 TRACKBAR_SetRangeMin (HWND hwnd, WPARAM wParam, LPARAM lParam)
 867 {
 868     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 869
 870     infoPtr->nRangeMin = (INT)lParam;
 871     if (infoPtr->nPos < infoPtr->nRangeMin) {
 872         infoPtr->nPos = infoPtr->nRangeMin;
 873         infoPtr->flags |=TB_THUMBPOSCHANGED;
 874     }
 875
 876     infoPtr->nPageSize=(infoPtr->nRangeMax -  infoPtr->nRangeMin)/5;
 877     if (infoPtr->nPageSize == 0)
 878         infoPtr->nPageSize = 1;
 879     TRACKBAR_RecalculateTics (infoPtr);
 880
 881     if (wParam)
 882         InvalidateRect (hwnd, NULL, FALSE);
 883
 884     return 0;
 885 }
 886
 887
 888 static LRESULT
 889 TRACKBAR_SetTicFreq (HWND hwnd, WPARAM wParam)
 890 {
 891     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 892
 893     if (GetWindowLongA (hwnd, GWL_STYLE) & TBS_AUTOTICKS)
 894         infoPtr->uTicFreq=(UINT) wParam;
 895
 896     TRACKBAR_RecalculateTics (infoPtr);
 897
 898     InvalidateRect (hwnd, NULL, FALSE);
 899
 900     return 0;
 901 }
 902
 903
 904 static LRESULT
 905 TRACKBAR_SetSel (HWND hwnd, WPARAM wParam, LPARAM lParam)
 906 {
 907     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 908
 909     infoPtr->nSelMin = (INT)LOWORD(lParam);
 910     infoPtr->nSelMax = (INT)HIWORD(lParam);
 911     infoPtr->flags |=TB_SELECTIONCHANGED;
 912
 913     if (!GetWindowLongA (hwnd, GWL_STYLE) & TBS_ENABLESELRANGE)
 914         return 0;
 915
 916     if (infoPtr->nSelMin < infoPtr->nRangeMin)
 917         infoPtr->nSelMin = infoPtr->nRangeMin;
 918     if (infoPtr->nSelMax > infoPtr->nRangeMax)
 919         infoPtr->nSelMax = infoPtr->nRangeMax;
 920
 921     if (wParam)
 922         InvalidateRect (hwnd, NULL, FALSE);
 923
 924
 925     return 0;
 926 }
 927
 928
 929 static LRESULT
 930 TRACKBAR_SetSelEnd (HWND hwnd, WPARAM wParam, LPARAM lParam)
 931 {
 932     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 933
 934     if (!GetWindowLongA (hwnd, GWL_STYLE) & TBS_ENABLESELRANGE)
 935         return 0;
 936
 937     infoPtr->nSelMax = (INT)lParam;
 938     infoPtr->flags |= TB_SELECTIONCHANGED;
 939
 940     if (infoPtr->nSelMax > infoPtr->nRangeMax)
 941         infoPtr->nSelMax = infoPtr->nRangeMax;
 942
 943     if (wParam)
 944         InvalidateRect (hwnd, NULL, FALSE);
 945
 946     return 0;
 947 }
 948
 949
 950 static LRESULT
 951 TRACKBAR_SetSelStart (HWND hwnd, WPARAM wParam, LPARAM lParam)
 952 {
 953     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 954
 955     if (!GetWindowLongA (hwnd, GWL_STYLE) & TBS_ENABLESELRANGE)
 956         return 0;
 957
 958     infoPtr->nSelMin = (INT)lParam;
 959     infoPtr->flags  |=TB_SELECTIONCHANGED;
 960
 961     if (infoPtr->nSelMin < infoPtr->nRangeMin)
 962         infoPtr->nSelMin = infoPtr->nRangeMin;
 963
 964     if (wParam)
 965         InvalidateRect (hwnd, NULL, FALSE);
 966
 967     return 0;
 968 }
 969
 970
 971 static LRESULT
 972 TRACKBAR_SetThumbLength (HWND hwnd, WPARAM wParam, LPARAM lParam)
 973 {
 974     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 975
 976     if (GetWindowLongA (hwnd, GWL_STYLE) & TBS_FIXEDLENGTH)
 977         infoPtr->uThumbLen = (UINT)wParam;
 978
 979     infoPtr->flags |= TB_THUMBSIZECHANGED;
 980
 981     InvalidateRect (hwnd, NULL, FALSE);
 982
 983     return 0;
 984 }
 985
 986
 987 static LRESULT
 988 TRACKBAR_SetTic (HWND hwnd, WPARAM wParam, LPARAM lParam)
 989 {
 990     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
 991     INT nPos = (INT)lParam;
 992
 993     if ((nPos < infoPtr->nRangeMin) || (nPos> infoPtr->nRangeMax))
 994         return FALSE;
 995
 996     infoPtr->uNumTics++;
 997     infoPtr->tics=COMCTL32_ReAlloc( infoPtr->tics,
 998                                     (infoPtr->uNumTics)*sizeof (DWORD));
 999     infoPtr->tics[infoPtr->uNumTics-1]=nPos;
1000
1001     InvalidateRect (hwnd, NULL, FALSE);
1002
1003     return TRUE;
1004 }
1005
1006
1007 static LRESULT
1008 TRACKBAR_SetTipSide (HWND hwnd, WPARAM wParam, LPARAM lParam)
1009 {
1010     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
1011     INT fTemp = infoPtr->fLocation;
1012
1013     infoPtr->fLocation = (INT)wParam;
1014
1015     return fTemp;
1016 }
1017
1018
1019 static LRESULT
1020 TRACKBAR_SetToolTips (HWND hwnd, WPARAM wParam, LPARAM lParam)
1021 {
1022     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
1023
1024     infoPtr->hwndToolTip = (HWND)wParam;
1025
1026     return 0;
1027 }
1028
1029
1030 /*      case TBM_SETUNICODEFORMAT: */
1031
1032
1033 static LRESULT
1034 TRACKBAR_InitializeThumb (HWND hwnd)
1035 {
1036     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
1037
1038     infoPtr->uThumbLen = 23;   /* initial thumb length */
1039
1040     TRACKBAR_CalcChannel (hwnd,infoPtr);
1041     TRACKBAR_CalcThumb (hwnd, infoPtr);
1042     infoPtr->flags &= ~TB_SELECTIONCHANGED;
1043
1044     return 0;
1045 }
1046
1047
1048 static LRESULT
1049 TRACKBAR_Create (HWND hwnd, WPARAM wParam, LPARAM lParam)
1050 {
1051     TRACKBAR_INFO *infoPtr;
1052
1053     infoPtr = (TRACKBAR_INFO *)COMCTL32_Alloc (sizeof(TRACKBAR_INFO));
1054     SetWindowLongA (hwnd, 0, (DWORD)infoPtr);
1055
1056     /* set default values */
1057     infoPtr->nRangeMin = 0;
1058     infoPtr->nRangeMax = 100;
1059     infoPtr->nLineSize = 1;
1060     infoPtr->nPageSize = 20;
1061     infoPtr->nSelMin   = 0;
1062     infoPtr->nSelMax   = 0;
1063     infoPtr->nPos      = 0;
1064
1065     infoPtr->uNumTics  = 0;    /* start and end tic are not included in count*/
1066     infoPtr->uTicFreq  = 1;
1067     infoPtr->tics          = NULL;
1068     infoPtr->clrBk         = GetSysColor (COLOR_BTNFACE);
1069     infoPtr->hwndNotify = GetParent (hwnd);
1070
1071     TRACKBAR_InitializeThumb (hwnd);
1072
1073     /* Create tooltip control */
1074     if (GetWindowLongA (hwnd, GWL_STYLE) & TBS_TOOLTIPS) {
1075         TTTOOLINFOA ti;
1076
1077         infoPtr->hwndToolTip =
1078             CreateWindowExA (0, TOOLTIPS_CLASSA, NULL, 0,
1079                              CW_USEDEFAULT, CW_USEDEFAULT,
1080                              CW_USEDEFAULT, CW_USEDEFAULT,
1081                              hwnd, 0, 0, 0);
1082
1083         /* Send NM_TOOLTIPSCREATED notification */
1084         if (infoPtr->hwndToolTip) {
1085             NMTOOLTIPSCREATED nmttc;
1086
1087             nmttc.hdr.hwndFrom = hwnd;
1088             nmttc.hdr.idFrom   = GetWindowLongA (hwnd, GWL_ID);
1089             nmttc.hdr.code = NM_TOOLTIPSCREATED;
1090             nmttc.hwndToolTips = infoPtr->hwndToolTip;
1091
1092             SendMessageA (GetParent (hwnd), WM_NOTIFY,
1093                           (WPARAM)nmttc.hdr.idFrom, (LPARAM)&nmttc);
1094         }
1095
1096         ZeroMemory (&ti, sizeof(TTTOOLINFOA));
1097         ti.cbSize   = sizeof(TTTOOLINFOA);
1098         ti.uFlags   = TTF_IDISHWND | TTF_TRACK;
1099         ti.hwnd     = hwnd;
1100         ti.uId      = 0;
1101         ti.lpszText = "Test"; /* LPSTR_TEXTCALLBACK */
1102         SetRectEmpty (&ti.rect);
1103
1104         SendMessageA (infoPtr->hwndToolTip, TTM_ADDTOOLA, 0, (LPARAM)&ti);
1105     }
1106
1107     return 0;
1108 }
1109
1110
1111 static LRESULT
1112 TRACKBAR_Destroy (HWND hwnd, WPARAM wParam, LPARAM lParam)
1113 {
1114     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
1115
1116     /* delete tooltip control */
1117     if (infoPtr->hwndToolTip)
1118         DestroyWindow (infoPtr->hwndToolTip);
1119
1120     COMCTL32_Free (infoPtr);
1121     return 0;
1122 }
1123
1124
1125 static LRESULT
1126 TRACKBAR_KillFocus (HWND hwnd, WPARAM wParam, LPARAM lParam)
1127 {
1128     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
1129
1130     TRACE("\n");
1131
1132     infoPtr->bFocus = FALSE;
1133     infoPtr->flags &= ~TB_DRAG_MODE;
1134
1135     InvalidateRect (hwnd, NULL, FALSE);
1136
1137     return 0;
1138 }
1139
1140
1141 static LRESULT
1142 TRACKBAR_LButtonDown (HWND hwnd, WPARAM wParam, LPARAM lParam)
1143 {
1144     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
1145     DWORD dwStyle = GetWindowLongA (hwnd, GWL_STYLE);
1146     int clickPlace,prevPos,vertical;
1147     DOUBLE clickPos;
1148
1149     SetFocus (hwnd);
1150
1151     vertical = dwStyle & TBS_VERT;
1152     if (vertical)
1153         clickPlace=(INT)HIWORD(lParam);
1154     else
1155         clickPlace=(INT)LOWORD(lParam);
1156
1157     if ((vertical &&
1158          (clickPlace>infoPtr->rcThumb.top) &&
1159          (clickPlace<infoPtr->rcThumb.bottom))   ||
1160         (!vertical &&
1161          (clickPlace>infoPtr->rcThumb.left) &&
1162          (clickPlace<infoPtr->rcThumb.right))) {
1163         infoPtr->flags |= TB_DRAG_MODE;
1164         if (dwStyle & TBS_TOOLTIPS) {  /* enable tooltip */
1165             TTTOOLINFOA ti;
1166             POINT pt;
1167
1168             GetCursorPos (&pt);
1169             SendMessageA (infoPtr->hwndToolTip, TTM_TRACKPOSITION, 0,
1170                           (LPARAM)MAKELPARAM(pt.x, pt.y));
1171
1172             ti.cbSize   = sizeof(TTTOOLINFOA);
1173             ti.uId      = 0;
1174             ti.hwnd     = (UINT)hwnd;
1175
1176             infoPtr->flags |= TB_SHOW_TOOLTIP;
1177             SetCapture (hwnd);
1178             SendMessageA (infoPtr->hwndToolTip, TTM_TRACKACTIVATE,
1179                           (WPARAM)TRUE, (LPARAM)&ti);
1180         }
1181         return 0;
1182     }
1183
1184     clickPos = TRACKBAR_ConvertPlaceToPosition (infoPtr, clickPlace, vertical);
1185     prevPos = infoPtr->nPos;
1186
1187     if (clickPos > prevPos) {  /* similar to VK_NEXT */
1188         infoPtr->nPos += infoPtr->nPageSize;
1189         if (infoPtr->nPos > infoPtr->nRangeMax)
1190             infoPtr->nPos = infoPtr->nRangeMax;
1191         TRACKBAR_SendNotify (hwnd, TB_PAGEUP);
1192     } else {
1193         infoPtr->nPos -= infoPtr->nPageSize;  /* similar to VK_PRIOR */
1194         if (infoPtr->nPos < infoPtr->nRangeMin)
1195             infoPtr->nPos = infoPtr->nRangeMin;
1196         TRACKBAR_SendNotify (hwnd, TB_PAGEDOWN);
1197     }
1198
1199     if (prevPos!=infoPtr->nPos) {
1200         infoPtr->flags |= TB_THUMBPOSCHANGED;
1201         InvalidateRect (hwnd, NULL, FALSE);
1202     }
1203
1204     return 0;
1205 }
1206
1207
1208 static LRESULT
1209 TRACKBAR_LButtonUp (HWND hwnd, WPARAM wParam, LPARAM lParam)
1210 {
1211     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
1212
1213     TRACKBAR_SendNotify (hwnd, TB_ENDTRACK);
1214
1215     if (infoPtr->flags & TB_DRAG_MODE)
1216     {
1217         infoPtr->flags &= ~TB_DRAG_MODE;
1218         ReleaseCapture ();
1219     }
1220
1221     if (GetWindowLongA (hwnd, GWL_STYLE) & TBS_TOOLTIPS) {  /* disable tooltip */
1222         TTTOOLINFOA ti;
1223
1224         ti.cbSize   = sizeof(TTTOOLINFOA);
1225         ti.uId      = 0;
1226         ti.hwnd     = (UINT)hwnd;
1227
1228         infoPtr->flags &= ~TB_SHOW_TOOLTIP;
1229         SendMessageA (infoPtr->hwndToolTip, TTM_TRACKACTIVATE,
1230                       (WPARAM)FALSE, (LPARAM)&ti);
1231     }
1232
1233     InvalidateRect (hwnd, NULL, FALSE);
1234
1235     return 0;
1236 }
1237
1238
1239 static LRESULT
1240 TRACKBAR_CaptureChanged (HWND hwnd, WPARAM wParam, LPARAM lParam)
1241 {
1242     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
1243
1244     if (infoPtr->flags & TB_DRAGPOSVALID) {
1245         infoPtr->nPos=infoPtr->dragPos;
1246         InvalidateRect (hwnd, NULL, FALSE);
1247     }
1248
1249     infoPtr->flags &= ~ TB_DRAGPOSVALID;
1250
1251     TRACKBAR_SendNotify (hwnd, TB_ENDTRACK);
1252     return 0;
1253 }
1254
1255
1256 static LRESULT
1257 TRACKBAR_Paint (HWND hwnd, WPARAM wParam)
1258 {
1259     HDC hdc;
1260     PAINTSTRUCT ps;
1261
1262     hdc = wParam==0 ? BeginPaint (hwnd, &ps) : (HDC)wParam;
1263     TRACKBAR_Refresh (hwnd, hdc);
1264     if(!wParam)
1265         EndPaint (hwnd, &ps);
1266     return 0;
1267 }
1268
1269
1270 static LRESULT
1271 TRACKBAR_SetFocus (HWND hwnd, WPARAM wParam, LPARAM lParam)
1272 {
1273     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
1274
1275     TRACE("\n");
1276     infoPtr->bFocus = TRUE;
1277
1278     InvalidateRect (hwnd, NULL, FALSE);
1279
1280     return 0;
1281 }
1282
1283
1284 static LRESULT
1285 TRACKBAR_Size (HWND hwnd, WPARAM wParam, LPARAM lParam)
1286 {
1287     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
1288
1289     TRACKBAR_CalcChannel (hwnd, infoPtr);
1290     TRACKBAR_AlignBuddies (hwnd, infoPtr);
1291
1292     return 0;
1293 }
1294
1295
1296 static BOOL
1297 TRACKBAR_SendNotify (HWND hwnd, UINT code)
1298 {
1299     TRACE("%x\n",code);
1300
1301     if (GetWindowLongA (hwnd, GWL_STYLE) & TBS_VERT)
1302         return (BOOL) SendMessageA (GetParent (hwnd),
1303                                     WM_VSCROLL, (WPARAM)code, (LPARAM)hwnd);
1304
1305     return (BOOL) SendMessageA (GetParent (hwnd),
1306                                 WM_HSCROLL, (WPARAM)code, (LPARAM)hwnd);
1307 }
1308
1309
1310 static LRESULT
1311 TRACKBAR_MouseMove (HWND hwnd, WPARAM wParam, LPARAM lParam)
1312 {
1313     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
1314     DWORD dwStyle = GetWindowLongA (hwnd, GWL_STYLE);
1315     SHORT clickPlace;
1316     DOUBLE dragPos;
1317     char buf[80];
1318
1319     TRACE("%x\n",wParam);
1320
1321     if (dwStyle & TBS_VERT)
1322         clickPlace=(SHORT)HIWORD(lParam);
1323     else
1324         clickPlace=(SHORT)LOWORD(lParam);
1325
1326     if (!(infoPtr->flags & TB_DRAG_MODE))
1327         return TRUE;
1328
1329     SetCapture (hwnd);
1330     dragPos = TRACKBAR_ConvertPlaceToPosition (infoPtr, clickPlace,
1331                                                dwStyle & TBS_VERT);
1332     if (dragPos > ((INT)dragPos) + 0.5)
1333         infoPtr->dragPos = dragPos + 1;
1334     else
1335         infoPtr->dragPos = dragPos;
1336
1337     infoPtr->flags |= TB_DRAGPOSVALID;
1338     TRACKBAR_SendNotify (hwnd, TB_THUMBTRACK | (infoPtr->nPos<<16));
1339
1340     if (infoPtr->flags & TB_SHOW_TOOLTIP) {
1341         POINT pt;
1342         TTTOOLINFOA ti;
1343
1344         ti.cbSize = sizeof(TTTOOLINFOA);
1345         ti.hwnd = hwnd;
1346         ti.uId = 0;
1347         ti.hinst=0;
1348         sprintf (buf,"%d",infoPtr->nPos);
1349         ti.lpszText = (LPSTR) buf;
1350         GetCursorPos (&pt);
1351
1352         if (dwStyle & TBS_VERT) {
1353             SendMessageA (infoPtr->hwndToolTip, TTM_TRACKPOSITION,
1354                           0, (LPARAM)MAKELPARAM(pt.x+5, pt.y+15));
1355         } else {
1356             SendMessageA (infoPtr->hwndToolTip, TTM_TRACKPOSITION,
1357                           0, (LPARAM)MAKELPARAM(pt.x+15, pt.y+5));
1358         }
1359         SendMessageA (infoPtr->hwndToolTip, TTM_UPDATETIPTEXTA,
1360                       0, (LPARAM)&ti);
1361     }
1362
1363     InvalidateRect (hwnd, NULL, FALSE);
1364     UpdateWindow (hwnd);
1365
1366     return TRUE;
1367 }
1368
1369
1370 static LRESULT
1371 TRACKBAR_KeyDown (HWND hwnd, WPARAM wParam, LPARAM lParam)
1372 {
1373     TRACKBAR_INFO *infoPtr = TRACKBAR_GetInfoPtr (hwnd);
1374     INT pos;
1375
1376     TRACE("%x\n",wParam);
1377
1378     pos=infoPtr->nPos;
1379     switch (wParam) {
1380     case VK_LEFT:
1381     case VK_UP:
1382         if (infoPtr->nPos == infoPtr->nRangeMin) return FALSE;
1383         infoPtr->nPos -= infoPtr->nLineSize;
1384         if (infoPtr->nPos < infoPtr->nRangeMin)
1385             infoPtr->nPos = infoPtr->nRangeMin;
1386         TRACKBAR_SendNotify (hwnd, TB_LINEUP);
1387         break;
1388     case VK_RIGHT:
1389     case VK_DOWN:
1390         if (infoPtr->nPos == infoPtr->nRangeMax) return FALSE;
1391         infoPtr->nPos += infoPtr->nLineSize;
1392         if (infoPtr->nPos > infoPtr->nRangeMax)
1393             infoPtr->nPos = infoPtr->nRangeMax;
1394         TRACKBAR_SendNotify (hwnd, TB_LINEDOWN);
1395         break;
1396     case VK_NEXT:
1397         if (infoPtr->nPos == infoPtr->nRangeMax) return FALSE;
1398         infoPtr->nPos += infoPtr->nPageSize;
1399         if (infoPtr->nPos > infoPtr->nRangeMax)
1400             infoPtr->nPos = infoPtr->nRangeMax;
1401         TRACKBAR_SendNotify (hwnd, TB_PAGEUP);
1402         break;
1403     case VK_PRIOR:
1404         if (infoPtr->nPos == infoPtr->nRangeMin) return FALSE;
1405         infoPtr->nPos -= infoPtr->nPageSize;
1406         if (infoPtr->nPos < infoPtr->nRangeMin)
1407             infoPtr->nPos = infoPtr->nRangeMin;
1408         TRACKBAR_SendNotify (hwnd, TB_PAGEDOWN);
1409         break;
1410     case VK_HOME:
1411         if (infoPtr->nPos == infoPtr->nRangeMin) return FALSE;
1412         infoPtr->nPos = infoPtr->nRangeMin;
1413         TRACKBAR_SendNotify (hwnd, TB_TOP);
1414         break;
1415     case VK_END:
1416         if (infoPtr->nPos == infoPtr->nRangeMax) return FALSE;
1417         infoPtr->nPos = infoPtr->nRangeMax;
1418         TRACKBAR_SendNotify (hwnd, TB_BOTTOM);
1419         break;
1420     }
1421
1422     if (pos!=infoPtr->nPos) {
1423         infoPtr->flags |=TB_THUMBPOSCHANGED;
1424         InvalidateRect (hwnd, NULL, FALSE);
1425     }
1426
1427     return TRUE;
1428 }
1429
1430
1431 static LRESULT
1432 TRACKBAR_KeyUp (HWND hwnd, WPARAM wParam)
1433 {
1434     switch (wParam) {
1435     case VK_LEFT:
1436     case VK_UP:
1437     case VK_RIGHT:
1438     case VK_DOWN:
1439     case VK_NEXT:
1440     case VK_PRIOR:
1441     case VK_HOME:
1442     case VK_END:
1443         TRACKBAR_SendNotify (hwnd, TB_ENDTRACK);
1444     }
1445     return TRUE;
1446 }
1447
1448
1449 static LRESULT WINAPI
1450 TRACKBAR_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1451 {
1452     switch (uMsg)
1453     {
1454     case TBM_CLEARSEL:
1455         return TRACKBAR_ClearSel (hwnd, wParam, lParam);
1456
1457     case TBM_CLEARTICS:
1458         return TRACKBAR_ClearTics (hwnd, wParam, lParam);
1459
1460     case TBM_GETBUDDY:
1461         return TRACKBAR_GetBuddy (hwnd, wParam, lParam);
1462
1463     case TBM_GETCHANNELRECT:
1464         return TRACKBAR_GetChannelRect (hwnd, wParam, lParam);
1465
1466     case TBM_GETLINESIZE:
1467         return TRACKBAR_GetLineSize (hwnd, wParam, lParam);
1468
1469     case TBM_GETNUMTICS:
1470         return TRACKBAR_GetNumTics (hwnd, wParam, lParam);
1471
1472     case TBM_GETPAGESIZE:
1473         return TRACKBAR_GetPageSize (hwnd, wParam, lParam);
1474
1475     case TBM_GETPOS:
1476         return TRACKBAR_GetPos (hwnd, wParam, lParam);
1477
1478     case TBM_GETPTICS:
1479         return TRACKBAR_GetPTics (hwnd);
1480
1481     case TBM_GETRANGEMAX:
1482         return TRACKBAR_GetRangeMax (hwnd, wParam, lParam);
1483
1484     case TBM_GETRANGEMIN:
1485         return TRACKBAR_GetRangeMin (hwnd, wParam, lParam);
1486
1487     case TBM_GETSELEND:
1488         return TRACKBAR_GetSelEnd (hwnd, wParam, lParam);
1489
1490     case TBM_GETSELSTART:
1491         return TRACKBAR_GetSelStart (hwnd, wParam, lParam);
1492
1493     case TBM_GETTHUMBLENGTH:
1494         return TRACKBAR_GetThumbLength (hwnd, wParam, lParam);
1495
1496     case TBM_GETTHUMBRECT:
1497         return TRACKBAR_GetThumbRect (hwnd, wParam, lParam);
1498
1499     case TBM_GETTIC:
1500         return TRACKBAR_GetTic (hwnd, wParam, lParam);
1501
1502     case TBM_GETTICPOS:
1503         return TRACKBAR_GetTicPos (hwnd, wParam, lParam);
1504
1505     case TBM_GETTOOLTIPS:
1506         return TRACKBAR_GetToolTips (hwnd, wParam, lParam);
1507
1508 /*      case TBM_GETUNICODEFORMAT: */
1509
1510     case TBM_SETBUDDY:
1511         return TRACKBAR_SetBuddy (hwnd, wParam, lParam);
1512
1513     case TBM_SETLINESIZE:
1514         return TRACKBAR_SetLineSize (hwnd, wParam, lParam);
1515
1516     case TBM_SETPAGESIZE:
1517         return TRACKBAR_SetPageSize (hwnd, wParam, lParam);
1518
1519     case TBM_SETPOS:
1520         return TRACKBAR_SetPos (hwnd, wParam, lParam);
1521
1522     case TBM_SETRANGE:
1523         return TRACKBAR_SetRange (hwnd, wParam, lParam);
1524
1525     case TBM_SETRANGEMAX:
1526         return TRACKBAR_SetRangeMax (hwnd, wParam, lParam);
1527
1528     case TBM_SETRANGEMIN:
1529         return TRACKBAR_SetRangeMin (hwnd, wParam, lParam);
1530
1531     case TBM_SETSEL:
1532         return TRACKBAR_SetSel (hwnd, wParam, lParam);
1533
1534     case TBM_SETSELEND:
1535         return TRACKBAR_SetSelEnd (hwnd, wParam, lParam);
1536
1537     case TBM_SETSELSTART:
1538         return TRACKBAR_SetSelStart (hwnd, wParam, lParam);
1539
1540     case TBM_SETTHUMBLENGTH:
1541         return TRACKBAR_SetThumbLength (hwnd, wParam, lParam);
1542
1543     case TBM_SETTIC:
1544         return TRACKBAR_SetTic (hwnd, wParam, lParam);
1545
1546     case TBM_SETTICFREQ:
1547         return TRACKBAR_SetTicFreq (hwnd, wParam);
1548
1549     case TBM_SETTIPSIDE:
1550         return TRACKBAR_SetTipSide (hwnd, wParam, lParam);
1551
1552     case TBM_SETTOOLTIPS:
1553         return TRACKBAR_SetToolTips (hwnd, wParam, lParam);
1554
1555 /*      case TBM_SETUNICODEFORMAT: */
1556
1557
1558     case WM_CAPTURECHANGED:
1559         return TRACKBAR_CaptureChanged (hwnd, wParam, lParam);
1560
1561     case WM_CREATE:
1562         return TRACKBAR_Create (hwnd, wParam, lParam);
1563
1564     case WM_DESTROY:
1565         return TRACKBAR_Destroy (hwnd, wParam, lParam);
1566
1567 /*      case WM_ENABLE: */
1568
1569 /*      case WM_ERASEBKGND: */
1570 /*          return 0; */
1571
1572     case WM_GETDLGCODE:
1573         return DLGC_WANTARROWS;
1574
1575     case WM_KEYDOWN:
1576         return TRACKBAR_KeyDown (hwnd, wParam, lParam);
1577
1578     case WM_KEYUP:
1579         return TRACKBAR_KeyUp (hwnd, wParam);
1580
1581     case WM_KILLFOCUS:
1582         return TRACKBAR_KillFocus (hwnd, wParam, lParam);
1583
1584     case WM_LBUTTONDOWN:
1585         return TRACKBAR_LButtonDown (hwnd, wParam, lParam);
1586
1587     case WM_LBUTTONUP:
1588         return TRACKBAR_LButtonUp (hwnd, wParam, lParam);
1589
1590     case WM_MOUSEMOVE:
1591         return TRACKBAR_MouseMove (hwnd, wParam, lParam);
1592
1593     case WM_PAINT:
1594         return TRACKBAR_Paint (hwnd, wParam);
1595
1596     case WM_SETFOCUS:
1597         return TRACKBAR_SetFocus (hwnd, wParam, lParam);
1598
1599     case WM_SIZE:
1600         return TRACKBAR_Size (hwnd, wParam, lParam);
1601
1602     case WM_WININICHANGE:
1603         return TRACKBAR_InitializeThumb (hwnd);
1604
1605     default:
1606         if (uMsg >= WM_USER)
1607             ERR("unknown msg %04x wp=%08x lp=%08lx\n",
1608                  uMsg, wParam, lParam);
1609         return DefWindowProcA (hwnd, uMsg, wParam, lParam);
1610     }
1611     return 0;
1612 }
1613
1614
1615 VOID
1616 TRACKBAR_Register (void)
1617 {
1618     WNDCLASSA wndClass;
1619
1620     ZeroMemory (&wndClass, sizeof(WNDCLASSA));
1621     wndClass.style         = CS_GLOBALCLASS;
1622     wndClass.lpfnWndProc   = (WNDPROC)TRACKBAR_WindowProc;
1623     wndClass.cbClsExtra    = 0;
1624     wndClass.cbWndExtra    = sizeof(TRACKBAR_INFO *);
1625     wndClass.hCursor       = LoadCursorA (0, IDC_ARROWA);
1626     wndClass.hbrBackground = (HBRUSH)(COLOR_3DFACE + 1);
1627     wndClass.lpszClassName = TRACKBAR_CLASSA;
1628
1629     RegisterClassA (&wndClass);
1630 }
1631
1632
1633 VOID
1634 TRACKBAR_Unregister (void)
1635 {
1636     UnregisterClassA (TRACKBAR_CLASSA, (HINSTANCE)NULL);
1637 }
1638