dlls/comctl32/trackbar.c

   1 /*
   2  * Trackbar control
   3  *
   4  * Copyright 1998, 1999 Eric Kohl
   5  * Copyright 1998, 1999 Alex Priem
   6  * Copyright 2002 Dimitrie O. Paun
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  * NOTE
  23  *
  24  * This code was audited for completeness against the documented features
  25  * of Comctl32.dll version 6.0 on Sep. 12, 2002, by Dimitrie O. Paun.
  26  *
  27  * Unless otherwise noted, we believe this code to be complete, as per
  28  * the specification mentioned above.
  29  * If you discover missing features, or bugs, please note them below.
  30  *
  31  */
  32
  33 #include <stdarg.h>
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37
  38 #include "windef.h"
  39 #include "winbase.h"
  40 #include "wingdi.h"
  41 #include "winuser.h"
  42 #include "winnls.h"
  43 #include "commctrl.h"
  44 #include "wine/debug.h"
  45
  46 #include "comctl32.h"
  47
  48 WINE_DEFAULT_DEBUG_CHANNEL(trackbar);
  49
  50 typedef struct
  51 {
  52     HWND hwndSelf;
  53     LONG lRangeMin;
  54     LONG lRangeMax;
  55     LONG lLineSize;
  56     LONG lPageSize;
  57     LONG lSelMin;
  58     LONG lSelMax;
  59     LONG lPos;
  60     UINT uThumbLen;
  61     UINT uNumTics;
  62     UINT uTicFreq;
  63     HWND hwndNotify;
  64     HWND hwndToolTip;
  65     HWND hwndBuddyLA;
  66     HWND hwndBuddyRB;
  67     INT  fLocation;
  68     INT  flags;
  69     BOOL bUnicode;
  70     BOOL bFocussed;
  71     RECT rcChannel;
  72     RECT rcSelection;
  73     RECT rcThumb;
  74     LPLONG tics;
  75 } TRACKBAR_INFO;
  76
  77 #define TB_REFRESH_TIMER        1
  78 #define TB_REFRESH_DELAY        500
  79
  80 #define TOOLTIP_OFFSET          2     /* distance from ctrl edge to tooltip */
  81
  82 /* Used by TRACKBAR_Refresh to find out which parts of the control
  83    need to be recalculated */
  84
  85 #define TB_THUMBPOSCHANGED      1
  86 #define TB_THUMBSIZECHANGED     2
  87 #define TB_THUMBCHANGED         (TB_THUMBPOSCHANGED | TB_THUMBSIZECHANGED)
  88 #define TB_SELECTIONCHANGED     4
  89 #define TB_DRAG_MODE            8     /* we're dragging the slider */
  90 #define TB_AUTO_PAGE_LEFT       16
  91 #define TB_AUTO_PAGE_RIGHT      32
  92 #define TB_AUTO_PAGE            (TB_AUTO_PAGE_LEFT | TB_AUTO_PAGE_RIGHT)
  93
  94 /* helper defines for TRACKBAR_DrawTic */
  95 #define TIC_EDGE                0x20
  96 #define TIC_SELECTIONMARKMAX    0x80
  97 #define TIC_SELECTIONMARKMIN    0x100
  98 #define TIC_SELECTIONMARK       (TIC_SELECTIONMARKMAX | TIC_SELECTIONMARKMIN)
  99
 100 static BOOL TRACKBAR_SendNotify (TRACKBAR_INFO *infoPtr, UINT code);
 101
 102 static inline int
 103 notify_customdraw(NMCUSTOMDRAW *pnmcd, int stage)
 104 {
 105     pnmcd->dwDrawStage = stage;
 106     return SendMessageW (GetParent(pnmcd->hdr.hwndFrom), WM_NOTIFY,
 107                          pnmcd->hdr.idFrom, (LPARAM)pnmcd);
 108 }
 109
 110 static void TRACKBAR_RecalculateTics (TRACKBAR_INFO *infoPtr)
 111 {
 112     int i, tic, nrTics;
 113
 114     if (infoPtr->uTicFreq && infoPtr->lRangeMax >= infoPtr->lRangeMin)
 115         nrTics=(infoPtr->lRangeMax - infoPtr->lRangeMin)/infoPtr->uTicFreq;
 116     else {
 117         nrTics = 0;
 118         COMCTL32_Free (infoPtr->tics);
 119         infoPtr->tics = NULL;
 120         infoPtr->uNumTics = 0;
 121         return;
 122     }
 123
 124     if (nrTics != infoPtr->uNumTics) {
 125         infoPtr->tics=COMCTL32_ReAlloc (infoPtr->tics,
 126                                         (nrTics+1)*sizeof (DWORD));
 127         if (!infoPtr->tics) {
 128             infoPtr->uNumTics = 0;
 129             TRACKBAR_SendNotify(infoPtr, NM_OUTOFMEMORY);
 130             return;
 131         }
 132         infoPtr->uNumTics = nrTics;
 133     }
 134
 135     tic = infoPtr->lRangeMin + infoPtr->uTicFreq;
 136     for (i = 0; i < nrTics; i++, tic += infoPtr->uTicFreq)
 137         infoPtr->tics[i] = tic;
 138 }
 139
 140 /* converts from physical (mouse) position to logical position
 141    (in range of trackbar) */
 142
 143 static inline LONG
 144 TRACKBAR_ConvertPlaceToPosition (TRACKBAR_INFO *infoPtr, int place,
 145                                  int vertical)
 146 {
 147     double range, width, pos, offsetthumb;
 148
 149     range = infoPtr->lRangeMax - infoPtr->lRangeMin;
 150     if (vertical) {
 151         offsetthumb = (infoPtr->rcThumb.bottom - infoPtr->rcThumb.top)/2;
 152         width = infoPtr->rcChannel.bottom - infoPtr->rcChannel.top - (offsetthumb * 2) - 1;
 153         pos = (range*(place - infoPtr->rcChannel.top - offsetthumb)) / width;
 154     } else {
 155         offsetthumb = (infoPtr->rcThumb.right - infoPtr->rcThumb.left)/2;
 156         width = infoPtr->rcChannel.right - infoPtr->rcChannel.left - (offsetthumb * 2) - 1;
 157         pos = (range*(place - infoPtr->rcChannel.left - offsetthumb)) / width;
 158     }
 159     pos += infoPtr->lRangeMin;
 160     if (pos > infoPtr->lRangeMax)
 161         pos = infoPtr->lRangeMax;
 162     else if (pos < infoPtr->lRangeMin)
 163         pos = infoPtr->lRangeMin;
 164
 165     TRACE("%.2f\n", pos);
 166     return (LONG)(pos + 0.5);
 167 }
 168
 169
 170 /* return: 0> prev, 0 none, >0 next */
 171 static LONG
 172 TRACKBAR_GetAutoPageDirection (TRACKBAR_INFO *infoPtr, POINT clickPoint)
 173 {
 174     DWORD dwStyle = GetWindowLongW (infoPtr->hwndSelf, GWL_STYLE);
 175     RECT pageRect;
 176
 177     if (dwStyle & TBS_VERT) {
 178         pageRect.top = infoPtr->rcChannel.top;
 179         pageRect.bottom = infoPtr->rcChannel.bottom;
 180         pageRect.left = infoPtr->rcThumb.left;
 181         pageRect.right = infoPtr->rcThumb.right;
 182     } else {
 183         pageRect.top = infoPtr->rcThumb.top;
 184         pageRect.bottom = infoPtr->rcThumb.bottom;
 185         pageRect.left = infoPtr->rcChannel.left;
 186         pageRect.right = infoPtr->rcChannel.right;
 187     }
 188
 189
 190     if (PtInRect(&pageRect, clickPoint))
 191     {
 192         int clickPlace = (dwStyle & TBS_VERT) ? clickPoint.y : clickPoint.x;
 193
 194         LONG clickPos = TRACKBAR_ConvertPlaceToPosition(infoPtr, clickPlace,
 195                                                         dwStyle & TBS_VERT);
 196         return clickPos - infoPtr->lPos;
 197     }
 198
 199     return 0;
 200 }
 201
 202 static void inline
 203 TRACKBAR_PageUp (TRACKBAR_INFO *infoPtr)
 204 {
 205     if (infoPtr->lPos == infoPtr->lRangeMax) return;
 206
 207     infoPtr->lPos += infoPtr->lPageSize;
 208     if (infoPtr->lPos > infoPtr->lRangeMax)
 209         infoPtr->lPos = infoPtr->lRangeMax;
 210     TRACKBAR_SendNotify (infoPtr, TB_PAGEUP);
 211 }
 212
 213
 214 static void inline
 215 TRACKBAR_PageDown (TRACKBAR_INFO *infoPtr)
 216 {
 217     if (infoPtr->lPos == infoPtr->lRangeMin) return;
 218
 219     infoPtr->lPos -= infoPtr->lPageSize;
 220     if (infoPtr->lPos < infoPtr->lRangeMin)
 221         infoPtr->lPos = infoPtr->lRangeMin;
 222     TRACKBAR_SendNotify (infoPtr, TB_PAGEDOWN);
 223 }
 224
 225 static void
 226 TRACKBAR_CalcChannel (TRACKBAR_INFO *infoPtr)
 227 {
 228     DWORD dwStyle = GetWindowLongW (infoPtr->hwndSelf, GWL_STYLE);
 229     INT cyChannel, offsetthumb, offsetedge;
 230     RECT lpRect, *channel = & infoPtr->rcChannel;
 231
 232     GetClientRect (infoPtr->hwndSelf, &lpRect);
 233
 234     offsetthumb = infoPtr->uThumbLen / 4;
 235     offsetedge  = offsetthumb + 3;
 236     cyChannel   = (dwStyle & TBS_ENABLESELRANGE) ? offsetthumb*3 : 4;
 237     if (dwStyle & TBS_VERT) {
 238         channel->top    = lpRect.top + offsetedge;
 239         channel->bottom = lpRect.bottom - offsetedge;
 240         if (dwStyle & TBS_ENABLESELRANGE)
 241             channel->left = lpRect.left + ((infoPtr->uThumbLen - cyChannel + 2) / 2);
 242         else
 243             channel->left = lpRect.left + (infoPtr->uThumbLen / 2) - 1;
 244         if (dwStyle & TBS_BOTH) {
 245             if (dwStyle & TBS_NOTICKS)
 246                 channel->left += 1;
 247             else
 248                 channel->left += 9;
 249         }
 250         else if (dwStyle & TBS_TOP) {
 251             if (dwStyle & TBS_NOTICKS)
 252                 channel->left += 2;
 253             else
 254                 channel->left += 10;
 255         }
 256         channel->right = channel->left + cyChannel;
 257     } else {
 258         channel->left = lpRect.left + offsetedge;
 259         channel->right = lpRect.right - offsetedge;
 260         if (dwStyle & TBS_ENABLESELRANGE)
 261             channel->top = lpRect.top + ((infoPtr->uThumbLen - cyChannel + 2) / 2);
 262         else
 263             channel->top = lpRect.top + (infoPtr->uThumbLen / 2) - 1;
 264         if (dwStyle & TBS_BOTH) {
 265             if (dwStyle & TBS_NOTICKS)
 266                 channel->top += 1;
 267             else
 268                 channel->top += 9;
 269         }
 270         else if (dwStyle & TBS_TOP) {
 271             if (dwStyle & TBS_NOTICKS)
 272                 channel->top += 2;
 273             else
 274                 channel->top += 10;
 275         }
 276         channel->bottom   = channel->top + cyChannel;
 277     }
 278 }
 279
 280 static void
 281 TRACKBAR_CalcThumb (TRACKBAR_INFO *infoPtr, LONG lPos, RECT *thumb)
 282 {
 283     int range, width, height, thumbwidth;
 284     DWORD dwStyle = GetWindowLongW (infoPtr->hwndSelf, GWL_STYLE);
 285     RECT lpRect;
 286
 287     range = infoPtr->lRangeMax - infoPtr->lRangeMin;
 288     thumbwidth = (infoPtr->uThumbLen / 2) | 1;
 289
 290     if (!range) range = 1;
 291
 292     GetClientRect(infoPtr->hwndSelf, &lpRect);
 293     if (dwStyle & TBS_VERT)
 294     {
 295         height = infoPtr->rcChannel.bottom - infoPtr->rcChannel.top - thumbwidth;
 296
 297         if ((dwStyle & (TBS_BOTH | TBS_LEFT)) && !(dwStyle & TBS_NOTICKS))
 298             thumb->left = 10;
 299         else
 300             thumb->left = 2;
 301         thumb->right = thumb->left + infoPtr->uThumbLen;
 302         thumb->top = infoPtr->rcChannel.top +
 303                      (height*(lPos - infoPtr->lRangeMin))/range;
 304         thumb->bottom = thumb->top + thumbwidth;
 305     }
 306     else
 307     {
 308         width = infoPtr->rcChannel.right - infoPtr->rcChannel.left - thumbwidth;
 309
 310         thumb->left = infoPtr->rcChannel.left +
 311                       (width*(lPos - infoPtr->lRangeMin))/range;
 312         thumb->right = thumb->left + thumbwidth;
 313         if ((dwStyle & (TBS_BOTH | TBS_TOP)) && !(dwStyle & TBS_NOTICKS))
 314             thumb->top = 10;
 315         else
 316             thumb->top = 2;
 317         thumb->bottom = thumb->top + infoPtr->uThumbLen;
 318     }
 319 }
 320
 321 inline static void
 322 TRACKBAR_UpdateThumb (TRACKBAR_INFO *infoPtr)
 323 {
 324     TRACKBAR_CalcThumb(infoPtr, infoPtr->lPos, &infoPtr->rcThumb);
 325 }
 326
 327 static inline void
 328 TRACKBAR_InvalidateAll(TRACKBAR_INFO * infoPtr)
 329 {
 330     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
 331 }
 332
 333 static void
 334 TRACKBAR_InvalidateThumb (TRACKBAR_INFO *infoPtr, LONG thumbPos)
 335 {
 336     RECT rcThumb;
 337
 338     TRACKBAR_CalcThumb(infoPtr, thumbPos, &rcThumb);
 339     InflateRect(&rcThumb, 1, 1);
 340     InvalidateRect(infoPtr->hwndSelf, &rcThumb, FALSE);
 341 }
 342
 343 static inline void
 344 TRACKBAR_InvalidateThumbMove (TRACKBAR_INFO *infoPtr, LONG oldPos, LONG newPos)
 345 {
 346     TRACKBAR_InvalidateThumb (infoPtr, oldPos);
 347     if (newPos != oldPos)
 348         TRACKBAR_InvalidateThumb (infoPtr, newPos);
 349 }
 350
 351 static BOOL inline
 352 TRACKBAR_HasSelection (TRACKBAR_INFO *infoPtr)
 353 {
 354     return infoPtr->lSelMin != infoPtr->lSelMax;
 355 }
 356
 357 static void
 358 TRACKBAR_CalcSelection (TRACKBAR_INFO *infoPtr)
 359 {
 360     RECT *selection = &infoPtr->rcSelection;
 361     int range = infoPtr->lRangeMax - infoPtr->lRangeMin;
 362     int offsetthumb, height, width;
 363
 364     if (range <= 0) {
 365         SetRectEmpty (selection);
 366     } else {
 367         if (GetWindowLongW (infoPtr->hwndSelf, GWL_STYLE) & TBS_VERT) {
 368             offsetthumb = (infoPtr->rcThumb.bottom - infoPtr->rcThumb.top)/2;
 369             height = infoPtr->rcChannel.bottom - infoPtr->rcChannel.top - offsetthumb*2;
 370             selection->top    = infoPtr->rcChannel.top + offsetthumb +
 371                 (height*infoPtr->lSelMin)/range;
 372             selection->bottom = infoPtr->rcChannel.top + offsetthumb +
 373                 (height*infoPtr->lSelMax)/range;
 374             selection->left   = infoPtr->rcChannel.left + 3;
 375             selection->right  = infoPtr->rcChannel.right - 3;
 376         } else {
 377             offsetthumb = (infoPtr->rcThumb.right - infoPtr->rcThumb.left)/2;
 378             width = infoPtr->rcChannel.right - infoPtr->rcChannel.left - offsetthumb*2;
 379             selection->left   = infoPtr->rcChannel.left + offsetthumb +
 380                 (width*infoPtr->lSelMin)/range;
 381             selection->right  = infoPtr->rcChannel.left + offsetthumb +
 382                 (width*infoPtr->lSelMax)/range;
 383             selection->top    = infoPtr->rcChannel.top + 3;
 384             selection->bottom = infoPtr->rcChannel.bottom - 3;
 385         }
 386     }
 387
 388     TRACE("selection[left=%ld, top=%ld, right=%ld, bottom=%ld]\n",
 389            selection->left, selection->top, selection->right, selection->bottom);
 390 }
 391
 392 static BOOL
 393 TRACKBAR_AutoPage (TRACKBAR_INFO *infoPtr, POINT clickPoint)
 394 {
 395     LONG dir = TRACKBAR_GetAutoPageDirection(infoPtr, clickPoint);
 396     LONG prevPos = infoPtr->lPos;
 397
 398     TRACE("x=%ld, y=%ld, dir=%ld\n", clickPoint.x, clickPoint.y, dir);
 399
 400     if (dir > 0 && (infoPtr->flags & TB_AUTO_PAGE_RIGHT))
 401         TRACKBAR_PageUp(infoPtr);
 402     else if (dir < 0 && (infoPtr->flags & TB_AUTO_PAGE_LEFT))
 403         TRACKBAR_PageDown(infoPtr);
 404     else return FALSE;
 405
 406     infoPtr->flags |= TB_THUMBPOSCHANGED;
 407     TRACKBAR_InvalidateThumbMove (infoPtr, prevPos, infoPtr->lPos);
 408
 409     return TRUE;
 410 }
 411
 412 /* Trackbar drawing code. I like my spaghetti done milanese.  */
 413
 414 static void
 415 TRACKBAR_DrawChannel (TRACKBAR_INFO *infoPtr, HDC hdc, DWORD dwStyle)
 416 {
 417     RECT rcChannel = infoPtr->rcChannel;
 418
 419     DrawEdge (hdc, &rcChannel, EDGE_SUNKEN, BF_RECT | BF_ADJUST);
 420     if (dwStyle & TBS_ENABLESELRANGE) {          /* fill the channel */
 421         FillRect (hdc, &rcChannel, GetStockObject(WHITE_BRUSH));
 422         if (TRACKBAR_HasSelection(infoPtr))
 423             FillRect (hdc, &infoPtr->rcSelection, GetSysColorBrush(COLOR_HIGHLIGHT));
 424     }
 425 }
 426
 427 static void
 428 TRACKBAR_DrawOneTic (TRACKBAR_INFO *infoPtr, HDC hdc, LONG ticPos, int flags)
 429 {
 430     int x, y, ox, oy, range, side, indent = 0, len = 3;
 431     int offsetthumb;
 432     RECT rcTics;
 433
 434     if (flags & TBS_VERT) {
 435         offsetthumb = (infoPtr->rcThumb.bottom - infoPtr->rcThumb.top)/2;
 436         rcTics.left = infoPtr->rcThumb.left - 2;
 437         rcTics.right = infoPtr->rcThumb.right + 2;
 438         rcTics.top    = infoPtr->rcChannel.top + offsetthumb + 1;
 439         rcTics.bottom = infoPtr->rcChannel.bottom - offsetthumb;
 440     } else {
 441         offsetthumb = (infoPtr->rcThumb.right - infoPtr->rcThumb.left)/2;
 442         rcTics.left   = infoPtr->rcChannel.left + offsetthumb + 1;
 443         rcTics.right  = infoPtr->rcChannel.right - offsetthumb;
 444         rcTics.top = infoPtr->rcThumb.top - 2;
 445         rcTics.bottom = infoPtr->rcThumb.bottom + 2;
 446     }
 447
 448     if (flags & (TBS_TOP | TBS_LEFT)) {
 449         x = rcTics.left;
 450         y = rcTics.top;
 451         side = -1;
 452     } else {
 453         x = rcTics.right;
 454         y = rcTics.bottom;
 455         side = 1;
 456     }
 457
 458     range = infoPtr->lRangeMax - infoPtr->lRangeMin;
 459     if (range <= 0)
 460       range = 1; /* to avoid division by zero */
 461
 462     if (flags & TIC_SELECTIONMARK) {
 463         indent = (flags & TIC_SELECTIONMARKMIN) ? -1 : 1;
 464     } else if (flags & TIC_EDGE) {
 465         len++;
 466     }
 467
 468     if (flags & TBS_VERT) {
 469         int height = rcTics.bottom - rcTics.top;
 470         y = rcTics.top + (height*(ticPos - infoPtr->lRangeMin))/range;
 471     } else {
 472         int width = rcTics.right - rcTics.left;
 473         x = rcTics.left + (width*(ticPos - infoPtr->lRangeMin))/range;
 474     }
 475
 476     ox = x;
 477     oy = y;
 478     MoveToEx(hdc, x, y, 0);
 479     if (flags & TBS_VERT) x += len * side;
 480     else y += len * side;
 481     LineTo(hdc, x, y);
 482
 483     if (flags & TIC_SELECTIONMARK) {
 484         if (flags & TBS_VERT) {
 485             x -= side;
 486         } else {
 487             y -= side;
 488         }
 489         MoveToEx(hdc, x, y, 0);
 490         if (flags & TBS_VERT) {
 491             y += 2 * indent;
 492         } else {
 493             x += 2 * indent;
 494         }
 495
 496         LineTo(hdc, x, y);
 497         LineTo(hdc, ox, oy);
 498     }
 499 }
 500
 501
 502 static inline void
 503 TRACKBAR_DrawTic (TRACKBAR_INFO *infoPtr, HDC hdc, LONG ticPos, int flags)
 504 {
 505     if ((flags & (TBS_LEFT | TBS_TOP)) || (flags & TBS_BOTH))
 506         TRACKBAR_DrawOneTic (infoPtr, hdc, ticPos, flags | TBS_LEFT);
 507
 508     if (!(flags & (TBS_LEFT | TBS_TOP)) || (flags & TBS_BOTH))
 509         TRACKBAR_DrawOneTic (infoPtr, hdc, ticPos, flags & ~TBS_LEFT);
 510 }
 511
 512 static void
 513 TRACKBAR_DrawTics (TRACKBAR_INFO *infoPtr, HDC hdc, DWORD dwStyle)
 514 {
 515     int i, ticFlags = dwStyle & 0x0f;
 516     LOGPEN ticPen = { PS_SOLID, {1, 0}, GetSysColor (COLOR_3DDKSHADOW) };
 517     HPEN hOldPen, hTicPen;
 518
 519     /* create the pen to draw the tics with */
 520     hTicPen = CreatePenIndirect(&ticPen);
 521     hOldPen = hTicPen ? SelectObject(hdc, hTicPen) : 0;
 522
 523     /* actually draw the tics */
 524     for (i=0; i<infoPtr->uNumTics; i++)
 525         TRACKBAR_DrawTic (infoPtr, hdc, infoPtr->tics[i], ticFlags);
 526
 527     TRACKBAR_DrawTic (infoPtr, hdc, infoPtr->lRangeMin, ticFlags | TIC_EDGE);
 528     TRACKBAR_DrawTic (infoPtr, hdc, infoPtr->lRangeMax, ticFlags | TIC_EDGE);
 529
 530     if ((dwStyle & TBS_ENABLESELRANGE) && TRACKBAR_HasSelection(infoPtr)) {
 531         TRACKBAR_DrawTic (infoPtr, hdc, infoPtr->lSelMin,
 532                           ticFlags | TIC_SELECTIONMARKMIN);
 533         TRACKBAR_DrawTic (infoPtr, hdc, infoPtr->lSelMax,
 534                           ticFlags | TIC_SELECTIONMARKMAX);
 535     }
 536
 537     /* clean up the pen, if we created one */
 538     if (hTicPen) {
 539         SelectObject(hdc, hOldPen);
 540         DeleteObject(hTicPen);
 541     }
 542 }
 543
 544 static void
 545 TRACKBAR_DrawThumb(TRACKBAR_INFO *infoPtr, HDC hdc, DWORD dwStyle)
 546 {
 547     HBRUSH oldbr;
 548     HPEN  oldpen;
 549     RECT thumb = infoPtr->rcThumb;
 550     int BlackUntil = 3;
 551     int PointCount = 6;
 552     POINT points[6];
 553     int fillClr;
 554     int PointDepth;
 555
 556     fillClr = infoPtr->flags & TB_DRAG_MODE ? COLOR_BTNHILIGHT : COLOR_BTNFACE;
 557     oldbr = SelectObject (hdc, GetSysColorBrush(fillClr));
 558     SetPolyFillMode (hdc, WINDING);
 559
 560     if (dwStyle & TBS_BOTH)
 561     {
 562        points[0].x=thumb.right;
 563        points[0].y=thumb.top;
 564        points[1].x=thumb.right;
 565        points[1].y=thumb.bottom;
 566        points[2].x=thumb.left;
 567        points[2].y=thumb.bottom;
 568        points[3].x=thumb.left;
 569        points[3].y=thumb.top;
 570        points[4].x=points[0].x;
 571        points[4].y=points[0].y;
 572        PointCount = 5;
 573        BlackUntil = 3;
 574     }
 575     else
 576     {
 577         if (dwStyle & TBS_VERT)
 578         {
 579           PointDepth = (thumb.bottom - thumb.top) / 2;
 580           if (dwStyle & TBS_LEFT)
 581           {
 582             points[0].x=thumb.right;
 583             points[0].y=thumb.top;
 584             points[1].x=thumb.right;
 585             points[1].y=thumb.bottom;
 586             points[2].x=thumb.left + PointDepth;
 587             points[2].y=thumb.bottom;
 588             points[3].x=thumb.left;
 589             points[3].y=(thumb.bottom - thumb.top) / 2 + thumb.top + 1;
 590             points[4].x=thumb.left + PointDepth;
 591             points[4].y=thumb.top;
 592             points[5].x=points[0].x;
 593             points[5].y=points[0].y;
 594             BlackUntil = 4;
 595           }
 596           else
 597           {
 598             points[0].x=thumb.right;
 599             points[0].y=(thumb.bottom - thumb.top) / 2 + thumb.top + 1;
 600             points[1].x=thumb.right - PointDepth;
 601             points[1].y=thumb.bottom;
 602             points[2].x=thumb.left;
 603             points[2].y=thumb.bottom;
 604             points[3].x=thumb.left;
 605             points[3].y=thumb.top;
 606             points[4].x=thumb.right - PointDepth;
 607             points[4].y=thumb.top;
 608             points[5].x=points[0].x;
 609             points[5].y=points[0].y;
 610           }
 611         }
 612         else
 613         {
 614           PointDepth = (thumb.right - thumb.left) / 2;
 615           if (dwStyle & TBS_TOP)
 616           {
 617             points[0].x=(thumb.right - thumb.left) / 2 + thumb.left + 1;
 618             points[0].y=thumb.top;
 619             points[1].x=thumb.right;
 620             points[1].y=thumb.top + PointDepth;
 621             points[2].x=thumb.right;
 622             points[2].y=thumb.bottom;
 623             points[3].x=thumb.left;
 624             points[3].y=thumb.bottom;
 625             points[4].x=thumb.left;
 626             points[4].y=thumb.top + PointDepth;
 627             points[5].x=points[0].x;
 628             points[5].y=points[0].y;
 629             BlackUntil = 4;
 630           }
 631           else
 632           {
 633             points[0].x=thumb.right;
 634             points[0].y=thumb.top;
 635             points[1].x=thumb.right;
 636             points[1].y=thumb.bottom - PointDepth;
 637             points[2].x=(thumb.right - thumb.left) / 2 + thumb.left + 1;
 638             points[2].y=thumb.bottom;
 639             points[3].x=thumb.left;
 640             points[3].y=thumb.bottom - PointDepth;
 641             points[4].x=thumb.left;
 642             points[4].y=thumb.top;
 643             points[5].x=points[0].x;
 644             points[5].y=points[0].y;
 645           }
 646         }
 647
 648     }
 649
 650     /* Draw the thumb now */
 651     Polygon (hdc, points, PointCount);
 652     oldpen = SelectObject(hdc, GetStockObject(BLACK_PEN));
 653     Polyline(hdc,points, BlackUntil);
 654     SelectObject(hdc, GetStockObject(WHITE_PEN));
 655     Polyline(hdc, &points[BlackUntil-1], PointCount+1-BlackUntil);
 656     SelectObject(hdc, oldpen);
 657     SelectObject(hdc, oldbr);
 658 }
 659
 660
 661 static void inline
 662 TRACKBAR_ActivateToolTip (TRACKBAR_INFO *infoPtr, BOOL fShow)
 663 {
 664     TTTOOLINFOW ti;
 665
 666     if (!infoPtr->hwndToolTip) return;
 667
 668     ZeroMemory(&ti, sizeof(ti));
 669     ti.cbSize = sizeof(ti);
 670     ti.hwnd   = infoPtr->hwndSelf;
 671
 672     SendMessageW (infoPtr->hwndToolTip, TTM_TRACKACTIVATE, fShow, (LPARAM)&ti);
 673 }
 674
 675
 676 static void
 677 TRACKBAR_UpdateToolTip (TRACKBAR_INFO *infoPtr)
 678 {
 679     DWORD dwStyle = GetWindowLongW (infoPtr->hwndSelf, GWL_STYLE);
 680     WCHAR buf[80], fmt[] = { '%', 'l', 'd', 0 };
 681     TTTOOLINFOW ti;
 682     POINT pt;
 683     RECT rcClient;
 684     LRESULT size;
 685
 686     if (!infoPtr->hwndToolTip) return;
 687
 688     ZeroMemory(&ti, sizeof(ti));
 689     ti.cbSize = sizeof(ti);
 690     ti.hwnd   = infoPtr->hwndSelf;
 691     ti.uFlags = TTF_IDISHWND | TTF_TRACK | TTF_ABSOLUTE;
 692
 693     wsprintfW (buf, fmt, infoPtr->lPos);
 694     ti.lpszText = buf;
 695     SendMessageW (infoPtr->hwndToolTip, TTM_UPDATETIPTEXTW, 0, (LPARAM)&ti);
 696
 697     GetClientRect (infoPtr->hwndSelf, &rcClient);
 698     size = SendMessageW (infoPtr->hwndToolTip, TTM_GETBUBBLESIZE, 0, (LPARAM)&ti);
 699     if (dwStyle & TBS_VERT) {
 700         if (infoPtr->fLocation == TBTS_LEFT)
 701             pt.x = 0 - LOWORD(size) - TOOLTIP_OFFSET;
 702         else
 703             pt.x = rcClient.right + TOOLTIP_OFFSET;
 704         pt.y = (infoPtr->rcThumb.top + infoPtr->rcThumb.bottom - HIWORD(size))/2;
 705     } else {
 706         if (infoPtr->fLocation == TBTS_TOP)
 707             pt.y = 0 - HIWORD(size) - TOOLTIP_OFFSET;
 708         else
 709             pt.y = rcClient.bottom + TOOLTIP_OFFSET;
 710         pt.x = (infoPtr->rcThumb.left + infoPtr->rcThumb.right - LOWORD(size))/2;
 711     }
 712     ClientToScreen(infoPtr->hwndSelf, &pt);
 713
 714     SendMessageW (infoPtr->hwndToolTip, TTM_TRACKPOSITION,
 715                   0, (LPARAM)MAKELPARAM(pt.x, pt.y));
 716 }
 717
 718
 719 static void
 720 TRACKBAR_Refresh (TRACKBAR_INFO *infoPtr, HDC hdcDst)
 721 {
 722     DWORD dwStyle = GetWindowLongW (infoPtr->hwndSelf, GWL_STYLE);
 723     RECT rcClient;
 724     HDC hdc;
 725     HBITMAP hOldBmp = 0, hOffScreenBmp = 0;
 726     NMCUSTOMDRAW nmcd;
 727     int gcdrf, icdrf;
 728
 729     if (infoPtr->flags & TB_THUMBCHANGED) {
 730         TRACKBAR_UpdateThumb (infoPtr);
 731         if (infoPtr->flags & TB_THUMBSIZECHANGED)
 732             TRACKBAR_CalcChannel (infoPtr);
 733     }
 734     if (infoPtr->flags & TB_SELECTIONCHANGED)
 735         TRACKBAR_CalcSelection (infoPtr);
 736
 737     if (infoPtr->flags & TB_DRAG_MODE)
 738         TRACKBAR_UpdateToolTip (infoPtr);
 739
 740     infoPtr->flags &= ~ (TB_THUMBCHANGED | TB_SELECTIONCHANGED);
 741
 742     GetClientRect (infoPtr->hwndSelf, &rcClient);
 743
 744     /* try to render offscreen, if we fail, carrry onscreen */
 745     hdc = CreateCompatibleDC(hdcDst);
 746     if (hdc) {
 747         hOffScreenBmp = CreateCompatibleBitmap(hdcDst, rcClient.right, rcClient.bottom);
 748         if (hOffScreenBmp) {
 749             hOldBmp = SelectObject(hdc, hOffScreenBmp);
 750         } else {
 751             DeleteObject(hdc);
 752             hdc = hdcDst;
 753         }
 754     } else {
 755         hdc = hdcDst;
 756     }
 757
 758     ZeroMemory(&nmcd, sizeof(nmcd));
 759     nmcd.hdr.hwndFrom = infoPtr->hwndSelf;
 760     nmcd.hdr.idFrom = GetWindowLongW (infoPtr->hwndSelf, GWL_ID);
 761     nmcd.hdr.code = NM_CUSTOMDRAW;
 762     nmcd.hdc = hdc;
 763
 764     /* start the paint cycle */
 765     nmcd.rc = rcClient;
 766     gcdrf = notify_customdraw(&nmcd, CDDS_PREPAINT);
 767     if (gcdrf & CDRF_SKIPDEFAULT) goto cleanup;
 768
 769     /* Erase backbround */
 770     if (gcdrf == CDRF_DODEFAULT ||
 771         notify_customdraw(&nmcd, CDDS_PREERASE) != CDRF_SKIPDEFAULT) {
 772         FillRect (hdc, &rcClient, GetSysColorBrush(COLOR_BTNFACE));
 773         if (gcdrf != CDRF_DODEFAULT)
 774             notify_customdraw(&nmcd, CDDS_POSTERASE);
 775     }
 776
 777     /* draw channel */
 778     if (gcdrf & CDRF_NOTIFYITEMDRAW) {
 779         nmcd.dwItemSpec = TBCD_CHANNEL;
 780         nmcd.uItemState = CDIS_DEFAULT;
 781         nmcd.rc = infoPtr->rcChannel;
 782         icdrf = notify_customdraw(&nmcd, CDDS_ITEMPREPAINT);
 783     } else icdrf = CDRF_DODEFAULT;
 784     if ( !(icdrf & CDRF_SKIPDEFAULT) ) {
 785         TRACKBAR_DrawChannel (infoPtr, hdc, dwStyle);
 786         if (icdrf & CDRF_NOTIFYPOSTPAINT)
 787             notify_customdraw(&nmcd, CDDS_ITEMPOSTPAINT);
 788     }
 789
 790
 791     /* draw tics */
 792     if (!(dwStyle & TBS_NOTICKS)) {
 793         if (gcdrf & CDRF_NOTIFYITEMDRAW) {
 794             nmcd.dwItemSpec = TBCD_TICS;
 795             nmcd.uItemState = CDIS_DEFAULT;
 796             nmcd.rc = rcClient;
 797             icdrf = notify_customdraw(&nmcd, CDDS_ITEMPREPAINT);
 798         } else icdrf = CDRF_DODEFAULT;
 799         if ( !(icdrf & CDRF_SKIPDEFAULT) ) {
 800             TRACKBAR_DrawTics (infoPtr, hdc, dwStyle);
 801             if (icdrf & CDRF_NOTIFYPOSTPAINT)
 802                 notify_customdraw(&nmcd, CDDS_ITEMPOSTPAINT);
 803         }
 804     }
 805
 806     /* draw thumb */
 807     if (!(dwStyle & TBS_NOTHUMB)) {
 808         if (gcdrf & CDRF_NOTIFYITEMDRAW) {
 809             nmcd.dwItemSpec = TBCD_THUMB;
 810             nmcd.uItemState = infoPtr->flags & TB_DRAG_MODE ? CDIS_HOT : CDIS_DEFAULT;
 811             nmcd.rc = infoPtr->rcThumb;
 812             icdrf = notify_customdraw(&nmcd, CDDS_ITEMPREPAINT);
 813         } else icdrf = CDRF_DODEFAULT;
 814         if ( !(icdrf & CDRF_SKIPDEFAULT) ) {
 815             TRACKBAR_DrawThumb(infoPtr, hdc, dwStyle);
 816             if (icdrf & CDRF_NOTIFYPOSTPAINT)
 817                 notify_customdraw(&nmcd, CDDS_ITEMPOSTPAINT);
 818         }
 819     }
 820
 821     /* draw focus rectangle */
 822     if (infoPtr->bFocussed) {
 823         DrawFocusRect(hdc, &rcClient);
 824     }
 825
 826     /* finish up the painting */
 827     if (gcdrf & CDRF_NOTIFYPOSTPAINT)
 828         notify_customdraw(&nmcd, CDDS_POSTPAINT);
 829
 830 cleanup:
 831     /* cleanup, if we rendered offscreen */
 832     if (hdc != hdcDst) {
 833         BitBlt(hdcDst, 0, 0, rcClient.right, rcClient.bottom, hdc, 0, 0, SRCCOPY);
 834         SelectObject(hdc, hOldBmp);
 835         DeleteObject(hOffScreenBmp);
 836         DeleteObject(hdc);
 837     }
 838 }
 839
 840
 841 static void
 842 TRACKBAR_AlignBuddies (TRACKBAR_INFO *infoPtr)
 843 {
 844     DWORD dwStyle = GetWindowLongW (infoPtr->hwndSelf, GWL_STYLE);
 845     HWND hwndParent = GetParent (infoPtr->hwndSelf);
 846     RECT rcSelf, rcBuddy;
 847     INT x, y;
 848
 849     GetWindowRect (infoPtr->hwndSelf, &rcSelf);
 850     MapWindowPoints (HWND_DESKTOP, hwndParent, (LPPOINT)&rcSelf, 2);
 851
 852     /* align buddy left or above */
 853     if (infoPtr->hwndBuddyLA) {
 854         GetWindowRect (infoPtr->hwndBuddyLA, &rcBuddy);
 855         MapWindowPoints (HWND_DESKTOP, hwndParent, (LPPOINT)&rcBuddy, 2);
 856
 857         if (dwStyle & TBS_VERT) {
 858             x = (infoPtr->rcChannel.right + infoPtr->rcChannel.left) / 2 -
 859                 (rcBuddy.right - rcBuddy.left) / 2 + rcSelf.left;
 860             y = rcSelf.top - (rcBuddy.bottom - rcBuddy.top);
 861         }
 862         else {
 863             x = rcSelf.left - (rcBuddy.right - rcBuddy.left);
 864             y = (infoPtr->rcChannel.bottom + infoPtr->rcChannel.top) / 2 -
 865                 (rcBuddy.bottom - rcBuddy.top) / 2 + rcSelf.top;
 866         }
 867
 868         SetWindowPos (infoPtr->hwndBuddyLA, 0, x, y, 0, 0,
 869                       SWP_NOZORDER | SWP_NOSIZE);
 870     }
 871
 872
 873     /* align buddy right or below */
 874     if (infoPtr->hwndBuddyRB) {
 875         GetWindowRect (infoPtr->hwndBuddyRB, &rcBuddy);
 876         MapWindowPoints (HWND_DESKTOP, hwndParent, (LPPOINT)&rcBuddy, 2);
 877
 878         if (dwStyle & TBS_VERT) {
 879             x = (infoPtr->rcChannel.right + infoPtr->rcChannel.left) / 2 -
 880                 (rcBuddy.right - rcBuddy.left) / 2 + rcSelf.left;
 881             y = rcSelf.bottom;
 882         }
 883         else {
 884             x = rcSelf.right;
 885             y = (infoPtr->rcChannel.bottom + infoPtr->rcChannel.top) / 2 -
 886                 (rcBuddy.bottom - rcBuddy.top) / 2 + rcSelf.top;
 887         }
 888         SetWindowPos (infoPtr->hwndBuddyRB, 0, x, y, 0, 0,
 889                       SWP_NOZORDER | SWP_NOSIZE);
 890     }
 891 }
 892
 893
 894 static LRESULT
 895 TRACKBAR_ClearSel (TRACKBAR_INFO *infoPtr, BOOL fRedraw)
 896 {
 897     infoPtr->lSelMin = 0;
 898     infoPtr->lSelMax = 0;
 899     infoPtr->flags |= TB_SELECTIONCHANGED;
 900
 901     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
 902
 903     return 0;
 904 }
 905
 906
 907 static LRESULT
 908 TRACKBAR_ClearTics (TRACKBAR_INFO *infoPtr, BOOL fRedraw)
 909 {
 910     if (infoPtr->tics) {
 911         COMCTL32_Free (infoPtr->tics);
 912         infoPtr->tics = NULL;
 913         infoPtr->uNumTics = 0;
 914     }
 915
 916     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
 917
 918     return 0;
 919 }
 920
 921
 922 static LRESULT inline
 923 TRACKBAR_GetChannelRect (TRACKBAR_INFO *infoPtr, LPRECT lprc)
 924 {
 925     if (lprc == NULL) return 0;
 926
 927     lprc->left   = infoPtr->rcChannel.left;
 928     lprc->right  = infoPtr->rcChannel.right;
 929     lprc->bottom = infoPtr->rcChannel.bottom;
 930     lprc->top    = infoPtr->rcChannel.top;
 931
 932     return 0;
 933 }
 934
 935
 936 static LONG inline
 937 TRACKBAR_GetNumTics (TRACKBAR_INFO *infoPtr)
 938 {
 939     if (GetWindowLongW (infoPtr->hwndSelf, GWL_STYLE) & TBS_NOTICKS)
 940         return 0;
 941
 942     return infoPtr->uNumTics + 2;
 943 }
 944
 945
 946 static int comp_tics(const void *ap, const void *bp)
 947 {
 948     DWORD a = *((DWORD *)ap);
 949     DWORD b = *((DWORD *)bp);
 950
 951     TRACE("(a=%ld, b=%ld)\n", a, b);
 952     if (a < b) return -1;
 953     if (a > b) return 1;
 954     return 0;
 955 }
 956
 957
 958 static LONG inline
 959 TRACKBAR_GetTic (TRACKBAR_INFO *infoPtr, INT iTic)
 960 {
 961     if ((iTic < 0) || (iTic >= infoPtr->uNumTics) || !infoPtr->tics)
 962         return -1;
 963
 964     qsort(infoPtr->tics, infoPtr->uNumTics, sizeof(DWORD), comp_tics);
 965     return infoPtr->tics[iTic];
 966 }
 967
 968
 969 static LONG inline
 970 TRACKBAR_GetTicPos (TRACKBAR_INFO *infoPtr, INT iTic)
 971 {
 972     LONG range, width, pos, tic;
 973     int offsetthumb;
 974
 975     if ((iTic < 0) || (iTic >= infoPtr->uNumTics) || !infoPtr->tics)
 976         return -1;
 977
 978     tic   = TRACKBAR_GetTic (infoPtr, iTic);
 979     range = infoPtr->lRangeMax - infoPtr->lRangeMin;
 980     if (range <= 0) range = 1;
 981     offsetthumb = (infoPtr->rcThumb.right - infoPtr->rcThumb.left)/2;
 982     width = infoPtr->rcChannel.right - infoPtr->rcChannel.left - offsetthumb*2;
 983     pos   = infoPtr->rcChannel.left + offsetthumb + (width * tic) / range;
 984
 985     return pos;
 986 }
 987
 988
 989 static HWND
 990 TRACKBAR_SetBuddy (TRACKBAR_INFO *infoPtr, BOOL fLocation, HWND hwndBuddy)
 991 {
 992     HWND hwndTemp;
 993
 994     if (fLocation) {
 995         /* buddy is left or above */
 996         hwndTemp = infoPtr->hwndBuddyLA;
 997         infoPtr->hwndBuddyLA = hwndBuddy;
 998     }
 999     else {
1000         /* buddy is right or below */
1001         hwndTemp = infoPtr->hwndBuddyRB;
1002         infoPtr->hwndBuddyRB = hwndBuddy;
1003     }
1004
1005     TRACKBAR_AlignBuddies (infoPtr);
1006
1007     return hwndTemp;
1008 }
1009
1010
1011 static LONG inline
1012 TRACKBAR_SetLineSize (TRACKBAR_INFO *infoPtr, LONG lLineSize)
1013 {
1014     LONG lTemp = infoPtr->lLineSize;
1015
1016     infoPtr->lLineSize = lLineSize;
1017
1018     return lTemp;
1019 }
1020
1021
1022 static LONG inline
1023 TRACKBAR_SetPageSize (TRACKBAR_INFO *infoPtr, LONG lPageSize)
1024 {
1025     LONG lTemp = infoPtr->lPageSize;
1026
1027     infoPtr->lPageSize = lPageSize;
1028
1029     return lTemp;
1030 }
1031
1032
1033 static LRESULT inline
1034 TRACKBAR_SetPos (TRACKBAR_INFO *infoPtr, BOOL fPosition, LONG lPosition)
1035 {
1036     LONG oldPos = infoPtr->lPos;
1037     infoPtr->lPos = lPosition;
1038
1039     if (infoPtr->lPos < infoPtr->lRangeMin)
1040         infoPtr->lPos = infoPtr->lRangeMin;
1041
1042     if (infoPtr->lPos > infoPtr->lRangeMax)
1043         infoPtr->lPos = infoPtr->lRangeMax;
1044     infoPtr->flags |= TB_THUMBPOSCHANGED;
1045
1046     if (fPosition) TRACKBAR_InvalidateThumbMove(infoPtr, oldPos, lPosition);
1047
1048     return 0;
1049 }
1050
1051
1052 static LRESULT inline
1053 TRACKBAR_SetRange (TRACKBAR_INFO *infoPtr, BOOL fRedraw, LONG lRange)
1054 {
1055     infoPtr->lRangeMin = (SHORT)LOWORD(lRange);
1056     infoPtr->lRangeMax = (SHORT)HIWORD(lRange);
1057
1058     if (infoPtr->lPos < infoPtr->lRangeMin) {
1059         infoPtr->lPos = infoPtr->lRangeMin;
1060         infoPtr->flags |= TB_THUMBPOSCHANGED;
1061     }
1062
1063     if (infoPtr->lPos > infoPtr->lRangeMax) {
1064         infoPtr->lPos = infoPtr->lRangeMax;
1065         infoPtr->flags |= TB_THUMBPOSCHANGED;
1066     }
1067
1068     infoPtr->lPageSize = (infoPtr->lRangeMax - infoPtr->lRangeMin) / 5;
1069     if (infoPtr->lPageSize == 0) infoPtr->lPageSize = 1;
1070
1071     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
1072
1073     return 0;
1074 }
1075
1076
1077 static LRESULT inline
1078 TRACKBAR_SetRangeMax (TRACKBAR_INFO *infoPtr, BOOL fRedraw, LONG lMax)
1079 {
1080     infoPtr->lRangeMax = lMax;
1081     if (infoPtr->lPos > infoPtr->lRangeMax) {
1082         infoPtr->lPos = infoPtr->lRangeMax;
1083         infoPtr->flags |= TB_THUMBPOSCHANGED;
1084     }
1085
1086     infoPtr->lPageSize = (infoPtr->lRangeMax - infoPtr->lRangeMin) / 5;
1087     if (infoPtr->lPageSize == 0) infoPtr->lPageSize = 1;
1088
1089     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
1090
1091     return 0;
1092 }
1093
1094
1095 static LRESULT inline
1096 TRACKBAR_SetRangeMin (TRACKBAR_INFO *infoPtr, BOOL fRedraw, LONG lMin)
1097 {
1098     infoPtr->lRangeMin = lMin;
1099     if (infoPtr->lPos < infoPtr->lRangeMin) {
1100         infoPtr->lPos = infoPtr->lRangeMin;
1101         infoPtr->flags |= TB_THUMBPOSCHANGED;
1102     }
1103
1104     infoPtr->lPageSize = (infoPtr->lRangeMax - infoPtr->lRangeMin) / 5;
1105     if (infoPtr->lPageSize == 0) infoPtr->lPageSize = 1;
1106
1107     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
1108
1109     return 0;
1110 }
1111
1112
1113 static LRESULT inline
1114 TRACKBAR_SetSel (TRACKBAR_INFO *infoPtr, BOOL fRedraw, LONG lSel)
1115 {
1116     if (!GetWindowLongW (infoPtr->hwndSelf, GWL_STYLE) & TBS_ENABLESELRANGE)
1117         return 0;
1118
1119     infoPtr->lSelMin = (SHORT)LOWORD(lSel);
1120     infoPtr->lSelMax = (SHORT)HIWORD(lSel);
1121     infoPtr->flags |= TB_SELECTIONCHANGED;
1122
1123     if (infoPtr->lSelMin < infoPtr->lRangeMin)
1124         infoPtr->lSelMin = infoPtr->lRangeMin;
1125     if (infoPtr->lSelMax > infoPtr->lRangeMax)
1126         infoPtr->lSelMax = infoPtr->lRangeMax;
1127
1128     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
1129
1130     return 0;
1131 }
1132
1133
1134 static LRESULT inline
1135 TRACKBAR_SetSelEnd (TRACKBAR_INFO *infoPtr, BOOL fRedraw, LONG lEnd)
1136 {
1137     if (!GetWindowLongW (infoPtr->hwndSelf, GWL_STYLE) & TBS_ENABLESELRANGE)
1138         return 0;
1139
1140     infoPtr->lSelMax = lEnd;
1141     infoPtr->flags |= TB_SELECTIONCHANGED;
1142
1143     if (infoPtr->lSelMax > infoPtr->lRangeMax)
1144         infoPtr->lSelMax = infoPtr->lRangeMax;
1145
1146     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
1147
1148     return 0;
1149 }
1150
1151
1152 static LRESULT inline
1153 TRACKBAR_SetSelStart (TRACKBAR_INFO *infoPtr, BOOL fRedraw, LONG lStart)
1154 {
1155     if (!GetWindowLongW (infoPtr->hwndSelf, GWL_STYLE) & TBS_ENABLESELRANGE)
1156         return 0;
1157
1158     infoPtr->lSelMin = lStart;
1159     infoPtr->flags  |=TB_SELECTIONCHANGED;
1160
1161     if (infoPtr->lSelMin < infoPtr->lRangeMin)
1162         infoPtr->lSelMin = infoPtr->lRangeMin;
1163
1164     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
1165
1166     return 0;
1167 }
1168
1169
1170 static LRESULT inline
1171 TRACKBAR_SetThumbLength (TRACKBAR_INFO *infoPtr, UINT iLength)
1172 {
1173     if (GetWindowLongW (infoPtr->hwndSelf, GWL_STYLE) & TBS_FIXEDLENGTH) {
1174         infoPtr->uThumbLen = iLength;
1175         infoPtr->flags |= TB_THUMBSIZECHANGED;
1176         InvalidateRect (infoPtr->hwndSelf, &infoPtr->rcThumb, FALSE);
1177     }
1178
1179     return 0;
1180 }
1181
1182
1183 static LRESULT inline
1184 TRACKBAR_SetTic (TRACKBAR_INFO *infoPtr, LONG lPos)
1185 {
1186     if (GetWindowLongW (infoPtr->hwndSelf, GWL_STYLE) & TBS_AUTOTICKS)
1187         return FALSE;
1188
1189     if ((lPos < infoPtr->lRangeMin) || (lPos> infoPtr->lRangeMax))
1190         return FALSE;
1191
1192     TRACE("lPos=%ld\n", lPos);
1193
1194     infoPtr->uNumTics++;
1195     infoPtr->tics=COMCTL32_ReAlloc( infoPtr->tics,
1196                                     (infoPtr->uNumTics)*sizeof (DWORD));
1197     if (!infoPtr->tics) {
1198         infoPtr->uNumTics = 0;
1199         TRACKBAR_SendNotify(infoPtr, NM_OUTOFMEMORY);
1200         return FALSE;
1201     }
1202     infoPtr->tics[infoPtr->uNumTics-1] = lPos;
1203
1204     TRACKBAR_InvalidateAll(infoPtr);
1205
1206     return TRUE;
1207 }
1208
1209
1210 static LRESULT inline
1211 TRACKBAR_SetTicFreq (TRACKBAR_INFO *infoPtr, WORD wFreq)
1212 {
1213     if (GetWindowLongW (infoPtr->hwndSelf, GWL_STYLE) & TBS_AUTOTICKS) {
1214         infoPtr->uTicFreq = wFreq;
1215         TRACKBAR_RecalculateTics (infoPtr);
1216         TRACKBAR_InvalidateAll(infoPtr);
1217     }
1218
1219     return 0;
1220 }
1221
1222
1223 static INT inline
1224 TRACKBAR_SetTipSide (TRACKBAR_INFO *infoPtr, INT fLocation)
1225 {
1226     INT fTemp = infoPtr->fLocation;
1227
1228     infoPtr->fLocation = fLocation;
1229
1230     return fTemp;
1231 }
1232
1233
1234 static LRESULT inline
1235 TRACKBAR_SetToolTips (TRACKBAR_INFO *infoPtr, HWND hwndTT)
1236 {
1237     infoPtr->hwndToolTip = hwndTT;
1238
1239     return 0;
1240 }
1241
1242
1243 static BOOL inline
1244 TRACKBAR_SetUnicodeFormat (TRACKBAR_INFO *infoPtr, BOOL fUnicode)
1245 {
1246     BOOL bTemp = infoPtr->bUnicode;
1247
1248     infoPtr->bUnicode = fUnicode;
1249
1250     return bTemp;
1251 }
1252
1253
1254 static LRESULT
1255 TRACKBAR_InitializeThumb (TRACKBAR_INFO *infoPtr)
1256 {
1257     DWORD dwStyle = GetWindowLongW (infoPtr->hwndSelf, GWL_STYLE);
1258     RECT rect;
1259     int clientWidth, clientMetric;
1260
1261     /* initial thumb length */
1262     clientMetric = (dwStyle & TBS_ENABLESELRANGE) ? 23 : 21;
1263     GetClientRect(infoPtr->hwndSelf,&rect);
1264     if (dwStyle & TBS_VERT) {
1265         clientWidth = rect.right - rect.left;
1266     } else {
1267         clientWidth = rect.bottom - rect.top;
1268     }
1269     if (clientWidth >= clientMetric)
1270         infoPtr->uThumbLen = clientMetric;
1271     else
1272         infoPtr->uThumbLen = clientWidth > 9 ? clientWidth - 6 : 4;
1273
1274     TRACKBAR_CalcChannel (infoPtr);
1275     TRACKBAR_UpdateThumb (infoPtr);
1276     infoPtr->flags &= ~TB_SELECTIONCHANGED;
1277
1278     return 0;
1279 }
1280
1281
1282 static LRESULT
1283 TRACKBAR_Create (HWND hwnd, LPCREATESTRUCTW lpcs)
1284 {
1285     TRACKBAR_INFO *infoPtr;
1286     DWORD oldStyle, newStyle;
1287
1288     infoPtr = (TRACKBAR_INFO *)COMCTL32_Alloc (sizeof(TRACKBAR_INFO));
1289     if (!infoPtr) return -1;
1290     SetWindowLongW (hwnd, 0, (DWORD)infoPtr);
1291
1292     /* set default values */
1293     infoPtr->hwndSelf  = hwnd;
1294     infoPtr->lRangeMin = 0;
1295     infoPtr->lRangeMax = 100;
1296     infoPtr->lLineSize = 1;
1297     infoPtr->lPageSize = 20;
1298     infoPtr->lSelMin   = 0;
1299     infoPtr->lSelMax   = 0;
1300     infoPtr->lPos      = 0;
1301     infoPtr->fLocation = -1;
1302     infoPtr->uNumTics  = 0;    /* start and end tic are not included in count*/
1303     infoPtr->uTicFreq  = 1;
1304     infoPtr->tics      = NULL;
1305     infoPtr->hwndNotify= GetParent (hwnd);
1306
1307     TRACKBAR_InitializeThumb (infoPtr);
1308
1309     oldStyle = newStyle = GetWindowLongW (hwnd, GWL_STYLE);
1310     if (oldStyle & TBS_VERT) {
1311         if (! (oldStyle & (TBS_LEFT | TBS_RIGHT | TBS_BOTH)) )
1312             newStyle |= TBS_RIGHT;
1313     } else {
1314         if (! (oldStyle & (TBS_TOP | TBS_BOTTOM | TBS_BOTH)) )
1315             newStyle |= TBS_BOTTOM;
1316     }
1317     if (newStyle != oldStyle)
1318         SetWindowLongW (hwnd, GWL_STYLE, newStyle);
1319
1320     /* Create tooltip control */
1321     if (newStyle & TBS_TOOLTIPS) {
1322
1323         infoPtr->hwndToolTip =
1324             CreateWindowExW (0, TOOLTIPS_CLASSW, NULL, 0,
1325                              CW_USEDEFAULT, CW_USEDEFAULT,
1326                              CW_USEDEFAULT, CW_USEDEFAULT,
1327                              hwnd, 0, 0, 0);
1328
1329         if (infoPtr->hwndToolTip) {
1330             TTTOOLINFOW ti;
1331             ZeroMemory (&ti, sizeof(ti));
1332             ti.cbSize   = sizeof(ti);
1333             ti.uFlags   = TTF_IDISHWND | TTF_TRACK | TTF_ABSOLUTE;
1334             ti.hwnd     = hwnd;
1335
1336             SendMessageW (infoPtr->hwndToolTip, TTM_ADDTOOLW, 0, (LPARAM)&ti);
1337          }
1338     }
1339
1340     return 0;
1341 }
1342
1343
1344 static LRESULT
1345 TRACKBAR_Destroy (TRACKBAR_INFO *infoPtr)
1346 {
1347     /* delete tooltip control */
1348     if (infoPtr->hwndToolTip)
1349         DestroyWindow (infoPtr->hwndToolTip);
1350
1351     COMCTL32_Free (infoPtr);
1352     SetWindowLongW (infoPtr->hwndSelf, 0, 0);
1353     return 0;
1354 }
1355
1356
1357 static LRESULT
1358 TRACKBAR_KillFocus (TRACKBAR_INFO *infoPtr, HWND hwndGetFocus)
1359 {
1360     TRACE("\n");
1361     infoPtr->bFocussed = FALSE;
1362     TRACKBAR_InvalidateAll(infoPtr);
1363
1364     return 0;
1365 }
1366
1367 static LRESULT
1368 TRACKBAR_LButtonDown (TRACKBAR_INFO *infoPtr, DWORD fwKeys, POINTS pts)
1369 {
1370     POINT clickPoint = { pts.x, pts.y };
1371
1372     SetFocus(infoPtr->hwndSelf);
1373
1374     if (PtInRect(&infoPtr->rcThumb, clickPoint)) {
1375         infoPtr->flags |= TB_DRAG_MODE;
1376         SetCapture (infoPtr->hwndSelf);
1377         TRACKBAR_UpdateToolTip (infoPtr);
1378         TRACKBAR_ActivateToolTip (infoPtr, TRUE);
1379         TRACKBAR_InvalidateThumb(infoPtr, infoPtr->lPos);
1380     } else {
1381         LONG dir = TRACKBAR_GetAutoPageDirection(infoPtr, clickPoint);
1382         if (dir == 0) return 0;
1383         infoPtr->flags |= (dir < 0) ? TB_AUTO_PAGE_LEFT : TB_AUTO_PAGE_RIGHT;
1384         TRACKBAR_AutoPage (infoPtr, clickPoint);
1385         SetCapture (infoPtr->hwndSelf);
1386         SetTimer(infoPtr->hwndSelf, TB_REFRESH_TIMER, TB_REFRESH_DELAY, 0);
1387     }
1388
1389     return 0;
1390 }
1391
1392
1393 static LRESULT
1394 TRACKBAR_LButtonUp (TRACKBAR_INFO *infoPtr, DWORD fwKeys, POINTS pts)
1395 {
1396     if (infoPtr->flags & TB_DRAG_MODE) {
1397         TRACKBAR_SendNotify (infoPtr, TB_ENDTRACK);
1398         infoPtr->flags &= ~TB_DRAG_MODE;
1399         ReleaseCapture ();
1400         TRACKBAR_SendNotify(infoPtr, NM_RELEASEDCAPTURE);
1401         TRACKBAR_ActivateToolTip(infoPtr, FALSE);
1402         TRACKBAR_InvalidateThumb(infoPtr, infoPtr->lPos);
1403     }
1404     if (infoPtr->flags & TB_AUTO_PAGE) {
1405         KillTimer (infoPtr->hwndSelf, TB_REFRESH_TIMER);
1406         infoPtr->flags &= ~TB_AUTO_PAGE;
1407         ReleaseCapture ();
1408         TRACKBAR_SendNotify(infoPtr, NM_RELEASEDCAPTURE);
1409     }
1410
1411     return 0;
1412 }
1413
1414
1415 static LRESULT
1416 TRACKBAR_CaptureChanged (TRACKBAR_INFO *infoPtr)
1417 {
1418     TRACKBAR_SendNotify (infoPtr, TB_ENDTRACK);
1419     return 0;
1420 }
1421
1422
1423 static LRESULT
1424 TRACKBAR_Paint (TRACKBAR_INFO *infoPtr, HDC hdc)
1425 {
1426     if (hdc) {
1427         TRACKBAR_Refresh(infoPtr, hdc);
1428     } else {
1429         PAINTSTRUCT ps;
1430         hdc = BeginPaint (infoPtr->hwndSelf, &ps);
1431         TRACKBAR_Refresh (infoPtr, hdc);
1432         EndPaint (infoPtr->hwndSelf, &ps);
1433     }
1434
1435     return 0;
1436 }
1437
1438
1439 static LRESULT
1440 TRACKBAR_SetFocus (TRACKBAR_INFO *infoPtr, HWND hwndLoseFocus)
1441 {
1442     TRACE("\n");
1443     infoPtr->bFocussed = TRUE;
1444     TRACKBAR_InvalidateAll(infoPtr);
1445
1446     return 0;
1447 }
1448
1449
1450 static LRESULT
1451 TRACKBAR_Size (TRACKBAR_INFO *infoPtr, DWORD fwSizeType, INT nWidth, INT nHeight)
1452 {
1453     TRACKBAR_CalcChannel (infoPtr);
1454     TRACKBAR_AlignBuddies (infoPtr);
1455
1456     return 0;
1457 }
1458
1459
1460 static LRESULT
1461 TRACKBAR_Timer (TRACKBAR_INFO *infoPtr, INT wTimerID, TIMERPROC *tmrpc)
1462 {
1463     if (infoPtr->flags & TB_AUTO_PAGE) {
1464         POINT pt;
1465         if (GetCursorPos(&pt))
1466             if (ScreenToClient(infoPtr->hwndSelf, &pt))
1467                 TRACKBAR_AutoPage(infoPtr, pt);
1468     }
1469     return 0;
1470 }
1471
1472
1473 static BOOL
1474 TRACKBAR_SendNotify (TRACKBAR_INFO *infoPtr, UINT code)
1475 {
1476     BOOL bVert = GetWindowLongW (infoPtr->hwndSelf, GWL_STYLE) & TBS_VERT;
1477
1478     TRACE("%x\n", code);
1479
1480     return (BOOL) SendMessageW (GetParent (infoPtr->hwndSelf),
1481                                 bVert ? WM_VSCROLL : WM_HSCROLL,
1482                                 (WPARAM)code, (LPARAM)infoPtr->hwndSelf);
1483 }
1484
1485
1486 static LRESULT
1487 TRACKBAR_MouseMove (TRACKBAR_INFO *infoPtr, DWORD fwKeys, POINTS pts)
1488 {
1489     DWORD dwStyle = GetWindowLongW (infoPtr->hwndSelf, GWL_STYLE);
1490     INT clickPlace = (dwStyle & TBS_VERT) ? pts.y : pts.x;
1491     LONG dragPos, oldPos = infoPtr->lPos;
1492
1493     TRACE("(x=%d. y=%d)\n", pts.x, pts.y);
1494
1495     if (infoPtr->flags & TB_AUTO_PAGE) {
1496         POINT pt;
1497         POINTSTOPOINT(pt, pts);
1498         TRACKBAR_AutoPage (infoPtr, pt);
1499         return TRUE;
1500     }
1501
1502     if (!(infoPtr->flags & TB_DRAG_MODE)) return TRUE;
1503
1504     dragPos = TRACKBAR_ConvertPlaceToPosition (infoPtr, clickPlace,
1505                                                dwStyle & TBS_VERT);
1506     if (dragPos == oldPos) return TRUE;
1507
1508     infoPtr->lPos = dragPos;
1509
1510     infoPtr->flags |= TB_THUMBPOSCHANGED;
1511     TRACKBAR_SendNotify (infoPtr, TB_THUMBTRACK | (infoPtr->lPos<<16));
1512
1513
1514     TRACKBAR_InvalidateThumbMove(infoPtr, oldPos, dragPos);
1515     UpdateWindow (infoPtr->hwndSelf);
1516
1517     return TRUE;
1518 }
1519
1520
1521 static BOOL
1522 TRACKBAR_KeyDown (TRACKBAR_INFO *infoPtr, INT nVirtKey, DWORD lKeyData)
1523 {
1524     BOOL downIsLeft = GetWindowLongW (infoPtr->hwndSelf, GWL_STYLE) & TBS_DOWNISLEFT;
1525     LONG pos = infoPtr->lPos;
1526
1527     TRACE("%x\n", nVirtKey);
1528
1529     switch (nVirtKey) {
1530     case VK_UP:
1531         if (downIsLeft) goto step_right;
1532     case VK_LEFT:
1533     step_left:
1534         if (infoPtr->lPos == infoPtr->lRangeMin) return FALSE;
1535         infoPtr->lPos -= infoPtr->lLineSize;
1536         if (infoPtr->lPos < infoPtr->lRangeMin)
1537             infoPtr->lPos = infoPtr->lRangeMin;
1538         TRACKBAR_SendNotify (infoPtr, TB_LINEUP);
1539         break;
1540     case VK_DOWN:
1541         if (downIsLeft) goto step_left;
1542     case VK_RIGHT:
1543     step_right:
1544         if (infoPtr->lPos == infoPtr->lRangeMax) return FALSE;
1545         infoPtr->lPos += infoPtr->lLineSize;
1546         if (infoPtr->lPos > infoPtr->lRangeMax)
1547             infoPtr->lPos = infoPtr->lRangeMax;
1548         TRACKBAR_SendNotify (infoPtr, TB_LINEDOWN);
1549         break;
1550     case VK_NEXT:
1551         if (downIsLeft) goto page_left;
1552     page_right:
1553         TRACKBAR_PageUp(infoPtr);
1554         break;
1555     case VK_PRIOR:
1556         if (downIsLeft) goto page_right;
1557     page_left:
1558         TRACKBAR_PageDown(infoPtr);
1559         break;
1560     case VK_HOME:
1561         if (infoPtr->lPos == infoPtr->lRangeMin) return FALSE;
1562         infoPtr->lPos = infoPtr->lRangeMin;
1563         TRACKBAR_SendNotify (infoPtr, TB_TOP);
1564         break;
1565     case VK_END:
1566         if (infoPtr->lPos == infoPtr->lRangeMax) return FALSE;
1567         infoPtr->lPos = infoPtr->lRangeMax;
1568         TRACKBAR_SendNotify (infoPtr, TB_BOTTOM);
1569         break;
1570     }
1571
1572     if (pos != infoPtr->lPos) {
1573         infoPtr->flags |=TB_THUMBPOSCHANGED;
1574         TRACKBAR_InvalidateThumbMove (infoPtr, pos, infoPtr->lPos);
1575     }
1576
1577     return TRUE;
1578 }
1579
1580
1581 static BOOL inline
1582 TRACKBAR_KeyUp (TRACKBAR_INFO *infoPtr, INT nVirtKey, DWORD lKeyData)
1583 {
1584     switch (nVirtKey) {
1585     case VK_LEFT:
1586     case VK_UP:
1587     case VK_RIGHT:
1588     case VK_DOWN:
1589     case VK_NEXT:
1590     case VK_PRIOR:
1591     case VK_HOME:
1592     case VK_END:
1593         TRACKBAR_SendNotify (infoPtr, TB_ENDTRACK);
1594     }
1595     return TRUE;
1596 }
1597
1598
1599 static LRESULT WINAPI
1600 TRACKBAR_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1601 {
1602     TRACKBAR_INFO *infoPtr = (TRACKBAR_INFO *)GetWindowLongW (hwnd, 0);
1603
1604     TRACE("hwnd=%p msg=%x wparam=%x lparam=%lx\n", hwnd, uMsg, wParam, lParam);
1605
1606     if (!infoPtr && (uMsg != WM_CREATE))
1607         return DefWindowProcW (hwnd, uMsg, wParam, lParam);
1608
1609     switch (uMsg)
1610     {
1611     case TBM_CLEARSEL:
1612         return TRACKBAR_ClearSel (infoPtr, (BOOL)wParam);
1613
1614     case TBM_CLEARTICS:
1615         return TRACKBAR_ClearTics (infoPtr, (BOOL)wParam);
1616
1617     case TBM_GETBUDDY:
1618         return (LRESULT)(wParam ? infoPtr->hwndBuddyLA : infoPtr->hwndBuddyRB);
1619
1620     case TBM_GETCHANNELRECT:
1621         return TRACKBAR_GetChannelRect (infoPtr, (LPRECT)lParam);
1622
1623     case TBM_GETLINESIZE:
1624         return infoPtr->lLineSize;
1625
1626     case TBM_GETNUMTICS:
1627         return TRACKBAR_GetNumTics (infoPtr);
1628
1629     case TBM_GETPAGESIZE:
1630         return infoPtr->lPageSize;
1631
1632     case TBM_GETPOS:
1633         return infoPtr->lPos;
1634
1635     case TBM_GETPTICS:
1636         return (LRESULT)infoPtr->tics;
1637
1638     case TBM_GETRANGEMAX:
1639         return infoPtr->lRangeMax;
1640
1641     case TBM_GETRANGEMIN:
1642         return infoPtr->lRangeMin;
1643
1644     case TBM_GETSELEND:
1645         return infoPtr->lSelMax;
1646
1647     case TBM_GETSELSTART:
1648         return infoPtr->lSelMin;
1649
1650     case TBM_GETTHUMBLENGTH:
1651         return infoPtr->uThumbLen;
1652
1653     case TBM_GETTHUMBRECT:
1654         return CopyRect((LPRECT)lParam, &infoPtr->rcThumb);
1655
1656     case TBM_GETTIC:
1657         return TRACKBAR_GetTic (infoPtr, (INT)wParam);
1658
1659     case TBM_GETTICPOS:
1660         return TRACKBAR_GetTicPos (infoPtr, (INT)wParam);
1661
1662     case TBM_GETTOOLTIPS:
1663         return (LRESULT)infoPtr->hwndToolTip;
1664
1665     case TBM_GETUNICODEFORMAT:
1666         return infoPtr->bUnicode;
1667
1668     case TBM_SETBUDDY:
1669         return (LRESULT) TRACKBAR_SetBuddy(infoPtr, (BOOL)wParam, (HWND)lParam);
1670
1671     case TBM_SETLINESIZE:
1672         return TRACKBAR_SetLineSize (infoPtr, (LONG)lParam);
1673
1674     case TBM_SETPAGESIZE:
1675         return TRACKBAR_SetPageSize (infoPtr, (LONG)lParam);
1676
1677     case TBM_SETPOS:
1678         return TRACKBAR_SetPos (infoPtr, (BOOL)wParam, (LONG)lParam);
1679
1680     case TBM_SETRANGE:
1681         return TRACKBAR_SetRange (infoPtr, (BOOL)wParam, (LONG)lParam);
1682
1683     case TBM_SETRANGEMAX:
1684         return TRACKBAR_SetRangeMax (infoPtr, (BOOL)wParam, (LONG)lParam);
1685
1686     case TBM_SETRANGEMIN:
1687         return TRACKBAR_SetRangeMin (infoPtr, (BOOL)wParam, (LONG)lParam);
1688
1689     case TBM_SETSEL:
1690         return TRACKBAR_SetSel (infoPtr, (BOOL)wParam, (LONG)lParam);
1691
1692     case TBM_SETSELEND:
1693         return TRACKBAR_SetSelEnd (infoPtr, (BOOL)wParam, (LONG)lParam);
1694
1695     case TBM_SETSELSTART:
1696         return TRACKBAR_SetSelStart (infoPtr, (BOOL)wParam, (LONG)lParam);
1697
1698     case TBM_SETTHUMBLENGTH:
1699         return TRACKBAR_SetThumbLength (infoPtr, (UINT)wParam);
1700
1701     case TBM_SETTIC:
1702         return TRACKBAR_SetTic (infoPtr, (LONG)lParam);
1703
1704     case TBM_SETTICFREQ:
1705         return TRACKBAR_SetTicFreq (infoPtr, (WORD)wParam);
1706
1707     case TBM_SETTIPSIDE:
1708         return TRACKBAR_SetTipSide (infoPtr, (INT)wParam);
1709
1710     case TBM_SETTOOLTIPS:
1711         return TRACKBAR_SetToolTips (infoPtr, (HWND)wParam);
1712
1713     case TBM_SETUNICODEFORMAT:
1714         return TRACKBAR_SetUnicodeFormat (infoPtr, (BOOL)wParam);
1715
1716
1717     case WM_CAPTURECHANGED:
1718         return TRACKBAR_CaptureChanged (infoPtr);
1719
1720     case WM_CREATE:
1721         return TRACKBAR_Create (hwnd, (LPCREATESTRUCTW)lParam);
1722
1723     case WM_DESTROY:
1724         return TRACKBAR_Destroy (infoPtr);
1725
1726 /*      case WM_ENABLE: */
1727
1728     case WM_ERASEBKGND:
1729         return 0;
1730
1731     case WM_GETDLGCODE:
1732         return DLGC_WANTARROWS;
1733
1734     case WM_KEYDOWN:
1735         return TRACKBAR_KeyDown (infoPtr, (INT)wParam, (DWORD)lParam);
1736
1737     case WM_KEYUP:
1738         return TRACKBAR_KeyUp (infoPtr, (INT)wParam, (DWORD)lParam);
1739
1740     case WM_KILLFOCUS:
1741         return TRACKBAR_KillFocus (infoPtr, (HWND)wParam);
1742
1743     case WM_LBUTTONDOWN:
1744         return TRACKBAR_LButtonDown (infoPtr, wParam, MAKEPOINTS(lParam));
1745
1746     case WM_LBUTTONUP:
1747         return TRACKBAR_LButtonUp (infoPtr, wParam, MAKEPOINTS(lParam));
1748
1749     case WM_MOUSEMOVE:
1750         return TRACKBAR_MouseMove (infoPtr, wParam, MAKEPOINTS(lParam));
1751
1752     case WM_PAINT:
1753         return TRACKBAR_Paint (infoPtr, (HDC)wParam);
1754
1755     case WM_SETFOCUS:
1756         return TRACKBAR_SetFocus (infoPtr, (HWND)wParam);
1757
1758     case WM_SIZE:
1759         return TRACKBAR_Size (infoPtr, wParam, LOWORD(lParam), HIWORD(lParam));
1760
1761     case WM_TIMER:
1762         return TRACKBAR_Timer (infoPtr, (INT)wParam, (TIMERPROC *)lParam);
1763
1764     case WM_WININICHANGE:
1765         return TRACKBAR_InitializeThumb (infoPtr);
1766
1767     default:
1768         if ((uMsg >= WM_USER) && (uMsg < WM_APP))
1769             ERR("unknown msg %04x wp=%08x lp=%08lx\n", uMsg, wParam, lParam);
1770         return DefWindowProcW (hwnd, uMsg, wParam, lParam);
1771     }
1772     return 0;
1773 }
1774
1775
1776 void TRACKBAR_Register (void)
1777 {
1778     WNDCLASSW wndClass;
1779
1780     ZeroMemory (&wndClass, sizeof(WNDCLASSW));
1781     wndClass.style         = CS_GLOBALCLASS;
1782     wndClass.lpfnWndProc   = (WNDPROC)TRACKBAR_WindowProc;
1783     wndClass.cbClsExtra    = 0;
1784     wndClass.cbWndExtra    = sizeof(TRACKBAR_INFO *);
1785     wndClass.hCursor       = LoadCursorW (0, (LPWSTR)IDC_ARROW);
1786     wndClass.hbrBackground = (HBRUSH)(COLOR_3DFACE + 1);
1787     wndClass.lpszClassName = TRACKBAR_CLASSW;
1788
1789     RegisterClassW (&wndClass);
1790 }
1791
1792
1793 void TRACKBAR_Unregister (void)
1794 {
1795     UnregisterClassW (TRACKBAR_CLASSW, NULL);
1796 }