reactos/dll/win32/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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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 "uxtheme.h"
  45 #include "tmschema.h"
  46 #include "wine/debug.h"
  47
  48 #include "comctl32.h"
  49
  50 WINE_DEFAULT_DEBUG_CHANNEL(trackbar);
  51
  52 typedef struct
  53 {
  54     HWND hwndSelf;
  55     DWORD dwStyle;
  56     LONG lRangeMin;
  57     LONG lRangeMax;
  58     LONG lLineSize;
  59     LONG lPageSize;
  60     LONG lSelMin;
  61     LONG lSelMax;
  62     LONG lPos;
  63     UINT uThumbLen;
  64     UINT uNumTics;
  65     UINT uTicFreq;
  66     HWND hwndNotify;
  67     HWND hwndToolTip;
  68     HWND hwndBuddyLA;
  69     HWND hwndBuddyRB;
  70     INT  fLocation;
  71     INT  flags;
  72     BOOL bUnicode;
  73     BOOL bFocussed;
  74     RECT rcChannel;
  75     RECT rcSelection;
  76     RECT rcThumb;
  77     LPLONG tics;
  78 } TRACKBAR_INFO;
  79
  80 #define TB_REFRESH_TIMER        1
  81 #define TB_REFRESH_DELAY        500
  82
  83 #define TOOLTIP_OFFSET          2     /* distance from ctrl edge to tooltip */
  84
  85 #define TB_DEFAULTPAGESIZE      20
  86
  87 /* Used by TRACKBAR_Refresh to find out which parts of the control
  88    need to be recalculated */
  89
  90 #define TB_THUMBPOSCHANGED      1
  91 #define TB_THUMBSIZECHANGED     2
  92 #define TB_THUMBCHANGED         (TB_THUMBPOSCHANGED | TB_THUMBSIZECHANGED)
  93 #define TB_SELECTIONCHANGED     4
  94 #define TB_DRAG_MODE            8     /* we're dragging the slider */
  95 #define TB_AUTO_PAGE_LEFT       16
  96 #define TB_AUTO_PAGE_RIGHT      32
  97 #define TB_AUTO_PAGE            (TB_AUTO_PAGE_LEFT | TB_AUTO_PAGE_RIGHT)
  98 #define TB_THUMB_HOT            64    /* mouse hovers above thumb */
  99
 100 /* helper defines for TRACKBAR_DrawTic */
 101 #define TIC_EDGE                0x20
 102 #define TIC_SELECTIONMARKMAX    0x80
 103 #define TIC_SELECTIONMARKMIN    0x100
 104 #define TIC_SELECTIONMARK       (TIC_SELECTIONMARKMAX | TIC_SELECTIONMARKMIN)
 105
 106 static const WCHAR themeClass[] = { 'T','r','a','c','k','b','a','r',0 };
 107
 108 static inline int
 109 notify_customdraw (const TRACKBAR_INFO *infoPtr, NMCUSTOMDRAW *pnmcd, int stage)
 110 {
 111     pnmcd->dwDrawStage = stage;
 112     return SendMessageW (infoPtr->hwndNotify, WM_NOTIFY,
 113                          pnmcd->hdr.idFrom, (LPARAM)pnmcd);
 114 }
 115
 116 static LRESULT notify_hdr (const TRACKBAR_INFO *infoPtr, INT code, LPNMHDR pnmh)
 117 {
 118     LRESULT result;
 119
 120     TRACE("(code=%d)\n", code);
 121
 122     pnmh->hwndFrom = infoPtr->hwndSelf;
 123     pnmh->idFrom = GetWindowLongPtrW(infoPtr->hwndSelf, GWLP_ID);
 124     pnmh->code = code;
 125     result = SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, pnmh->idFrom, (LPARAM)pnmh);
 126
 127     TRACE("  <= %ld\n", result);
 128
 129     return result;
 130 }
 131
 132 static inline int notify (const TRACKBAR_INFO *infoPtr, INT code)
 133 {
 134     NMHDR nmh;
 135     return notify_hdr(infoPtr, code, &nmh);
 136 }
 137
 138 static BOOL
 139 notify_with_scroll (const TRACKBAR_INFO *infoPtr, UINT code)
 140 {
 141     BOOL bVert = infoPtr->dwStyle & TBS_VERT;
 142
 143     TRACE("%x\n", code);
 144
 145     return (BOOL) SendMessageW (infoPtr->hwndNotify,
 146                                 bVert ? WM_VSCROLL : WM_HSCROLL,
 147                                 (WPARAM)code, (LPARAM)infoPtr->hwndSelf);
 148 }
 149
 150 static void TRACKBAR_RecalculateTics (TRACKBAR_INFO *infoPtr)
 151 {
 152     int tic;
 153     unsigned nrTics, i;
 154
 155     if (infoPtr->uTicFreq && infoPtr->lRangeMax >= infoPtr->lRangeMin) {
 156         nrTics=(infoPtr->lRangeMax - infoPtr->lRangeMin)/infoPtr->uTicFreq;
 157         /* don't add extra tic if there's no remainder */
 158         if (nrTics && ((infoPtr->lRangeMax - infoPtr->lRangeMin) % infoPtr->uTicFreq == 0))
 159           nrTics--;
 160     }
 161     else {
 162         Free (infoPtr->tics);
 163         infoPtr->tics = NULL;
 164         infoPtr->uNumTics = 0;
 165         return;
 166     }
 167
 168     if (nrTics != infoPtr->uNumTics) {
 169         infoPtr->tics=ReAlloc (infoPtr->tics,
 170                                         (nrTics+1)*sizeof (DWORD));
 171         if (!infoPtr->tics) {
 172             infoPtr->uNumTics = 0;
 173             notify(infoPtr, NM_OUTOFMEMORY);
 174             return;
 175         }
 176         infoPtr->uNumTics = nrTics;
 177     }
 178
 179     tic = infoPtr->lRangeMin + infoPtr->uTicFreq;
 180     for (i = 0; i < nrTics; i++, tic += infoPtr->uTicFreq)
 181         infoPtr->tics[i] = tic;
 182 }
 183
 184 /* converts from physical (mouse) position to logical position
 185    (in range of trackbar) */
 186
 187 static inline LONG
 188 TRACKBAR_ConvertPlaceToPosition (const TRACKBAR_INFO *infoPtr, int place)
 189 {
 190     double range, width, pos, offsetthumb;
 191
 192     range = infoPtr->lRangeMax - infoPtr->lRangeMin;
 193     if (infoPtr->dwStyle & TBS_VERT) {
 194         offsetthumb = (infoPtr->rcThumb.bottom - infoPtr->rcThumb.top)/2;
 195         width = infoPtr->rcChannel.bottom - infoPtr->rcChannel.top - (offsetthumb * 2) - 1;
 196         pos = (range*(place - infoPtr->rcChannel.top - offsetthumb)) / width;
 197     } else {
 198         offsetthumb = (infoPtr->rcThumb.right - infoPtr->rcThumb.left)/2;
 199         width = infoPtr->rcChannel.right - infoPtr->rcChannel.left - (offsetthumb * 2) - 1;
 200         pos = (range*(place - infoPtr->rcChannel.left - offsetthumb)) / width;
 201     }
 202     pos += infoPtr->lRangeMin;
 203     if (pos > infoPtr->lRangeMax)
 204         pos = infoPtr->lRangeMax;
 205     else if (pos < infoPtr->lRangeMin)
 206         pos = infoPtr->lRangeMin;
 207
 208     TRACE("%.2f\n", pos);
 209     return (LONG)(pos + 0.5);
 210 }
 211
 212
 213 /* return: 0> prev, 0 none, >0 next */
 214 static LONG
 215 TRACKBAR_GetAutoPageDirection (const TRACKBAR_INFO *infoPtr, POINT clickPoint)
 216 {
 217     RECT pageRect;
 218
 219     if (infoPtr->dwStyle & TBS_VERT) {
 220         pageRect.top = infoPtr->rcChannel.top;
 221         pageRect.bottom = infoPtr->rcChannel.bottom;
 222         pageRect.left = infoPtr->rcThumb.left;
 223         pageRect.right = infoPtr->rcThumb.right;
 224     } else {
 225         pageRect.top = infoPtr->rcThumb.top;
 226         pageRect.bottom = infoPtr->rcThumb.bottom;
 227         pageRect.left = infoPtr->rcChannel.left;
 228         pageRect.right = infoPtr->rcChannel.right;
 229     }
 230
 231
 232     if (PtInRect(&pageRect, clickPoint))
 233     {
 234         int clickPlace = (infoPtr->dwStyle & TBS_VERT) ? clickPoint.y : clickPoint.x;
 235
 236         LONG clickPos = TRACKBAR_ConvertPlaceToPosition(infoPtr, clickPlace);
 237
 238         return clickPos - infoPtr->lPos;
 239     }
 240
 241     return 0;
 242 }
 243
 244 static inline void
 245 TRACKBAR_PageDown (TRACKBAR_INFO *infoPtr)
 246 {
 247     if (infoPtr->lPos == infoPtr->lRangeMax) return;
 248
 249     infoPtr->lPos += infoPtr->lPageSize;
 250     if (infoPtr->lPos > infoPtr->lRangeMax)
 251         infoPtr->lPos = infoPtr->lRangeMax;
 252     notify_with_scroll (infoPtr, TB_PAGEDOWN);
 253 }
 254
 255
 256 static inline void
 257 TRACKBAR_PageUp (TRACKBAR_INFO *infoPtr)
 258 {
 259     if (infoPtr->lPos == infoPtr->lRangeMin) return;
 260
 261     infoPtr->lPos -= infoPtr->lPageSize;
 262     if (infoPtr->lPos < infoPtr->lRangeMin)
 263         infoPtr->lPos = infoPtr->lRangeMin;
 264     notify_with_scroll (infoPtr, TB_PAGEUP);
 265 }
 266
 267 static inline void TRACKBAR_LineUp(TRACKBAR_INFO *infoPtr)
 268 {
 269     if (infoPtr->lPos == infoPtr->lRangeMin) return;
 270     infoPtr->lPos -= infoPtr->lLineSize;
 271     if (infoPtr->lPos < infoPtr->lRangeMin)
 272         infoPtr->lPos = infoPtr->lRangeMin;
 273     notify_with_scroll (infoPtr, TB_LINEUP);
 274 }
 275
 276 static inline void TRACKBAR_LineDown(TRACKBAR_INFO *infoPtr)
 277 {
 278     if (infoPtr->lPos == infoPtr->lRangeMax) return;
 279     infoPtr->lPos += infoPtr->lLineSize;
 280     if (infoPtr->lPos > infoPtr->lRangeMax)
 281         infoPtr->lPos = infoPtr->lRangeMax;
 282     notify_with_scroll (infoPtr, TB_LINEDOWN);
 283 }
 284
 285 static void
 286 TRACKBAR_CalcChannel (TRACKBAR_INFO *infoPtr)
 287 {
 288     INT cyChannel, offsetthumb, offsetedge;
 289     RECT lpRect, *channel = & infoPtr->rcChannel;
 290
 291     GetClientRect (infoPtr->hwndSelf, &lpRect);
 292
 293     offsetthumb = infoPtr->uThumbLen / 4;
 294     offsetedge  = offsetthumb + 3;
 295     cyChannel   = (infoPtr->dwStyle & TBS_ENABLESELRANGE) ? offsetthumb*3 : 4;
 296     if (infoPtr->dwStyle & TBS_VERT) {
 297         channel->top    = lpRect.top + offsetedge;
 298         channel->bottom = lpRect.bottom - offsetedge;
 299         if (infoPtr->dwStyle & TBS_ENABLESELRANGE)
 300             channel->left = lpRect.left + ((infoPtr->uThumbLen - cyChannel + 2) / 2);
 301         else
 302             channel->left = lpRect.left + (infoPtr->uThumbLen / 2) - 1;
 303         if (infoPtr->dwStyle & TBS_BOTH) {
 304             if (infoPtr->dwStyle & TBS_NOTICKS)
 305                 channel->left += 1;
 306             else
 307                 channel->left += 9;
 308         }
 309         else if (infoPtr->dwStyle & TBS_TOP) {
 310             if (infoPtr->dwStyle & TBS_NOTICKS)
 311                 channel->left += 2;
 312             else
 313                 channel->left += 10;
 314         }
 315         channel->right = channel->left + cyChannel;
 316     } else {
 317         channel->left = lpRect.left + offsetedge;
 318         channel->right = lpRect.right - offsetedge;
 319         if (infoPtr->dwStyle & TBS_ENABLESELRANGE)
 320             channel->top = lpRect.top + ((infoPtr->uThumbLen - cyChannel + 2) / 2);
 321         else
 322             channel->top = lpRect.top + (infoPtr->uThumbLen / 2) - 1;
 323         if (infoPtr->dwStyle & TBS_BOTH) {
 324             if (infoPtr->dwStyle & TBS_NOTICKS)
 325                 channel->top += 1;
 326             else
 327                 channel->top += 9;
 328         }
 329         else if (infoPtr->dwStyle & TBS_TOP) {
 330             if (infoPtr->dwStyle & TBS_NOTICKS)
 331                 channel->top += 2;
 332             else
 333                 channel->top += 10;
 334         }
 335         channel->bottom   = channel->top + cyChannel;
 336     }
 337 }
 338
 339 static void
 340 TRACKBAR_CalcThumb (const TRACKBAR_INFO *infoPtr, LONG lPos, RECT *thumb)
 341 {
 342     int range, width, height, thumbwidth;
 343     RECT lpRect;
 344
 345     range = infoPtr->lRangeMax - infoPtr->lRangeMin;
 346     thumbwidth = (infoPtr->uThumbLen / 2) | 1;
 347
 348     if (!range) range = 1;
 349
 350     GetClientRect(infoPtr->hwndSelf, &lpRect);
 351     if (infoPtr->dwStyle & TBS_VERT)
 352     {
 353         height = infoPtr->rcChannel.bottom - infoPtr->rcChannel.top - thumbwidth;
 354
 355         if ((infoPtr->dwStyle & (TBS_BOTH | TBS_LEFT)) && !(infoPtr->dwStyle & TBS_NOTICKS))
 356             thumb->left = 10;
 357         else
 358             thumb->left = 2;
 359         thumb->right = thumb->left + infoPtr->uThumbLen;
 360         thumb->top = infoPtr->rcChannel.top +
 361                      (height*(lPos - infoPtr->lRangeMin))/range;
 362         thumb->bottom = thumb->top + thumbwidth;
 363     }
 364     else
 365     {
 366         width = infoPtr->rcChannel.right - infoPtr->rcChannel.left - thumbwidth;
 367
 368         thumb->left = infoPtr->rcChannel.left +
 369                       (width*(lPos - infoPtr->lRangeMin))/range;
 370         thumb->right = thumb->left + thumbwidth;
 371         if ((infoPtr->dwStyle & (TBS_BOTH | TBS_TOP)) && !(infoPtr->dwStyle & TBS_NOTICKS))
 372             thumb->top = 10;
 373         else
 374             thumb->top = 2;
 375         thumb->bottom = thumb->top + infoPtr->uThumbLen;
 376     }
 377 }
 378
 379 static inline void
 380 TRACKBAR_UpdateThumb (TRACKBAR_INFO *infoPtr)
 381 {
 382     TRACKBAR_CalcThumb(infoPtr, infoPtr->lPos, &infoPtr->rcThumb);
 383 }
 384
 385 static inline void
 386 TRACKBAR_InvalidateAll (const TRACKBAR_INFO *infoPtr)
 387 {
 388     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
 389 }
 390
 391 static void
 392 TRACKBAR_InvalidateThumb (const TRACKBAR_INFO *infoPtr, LONG thumbPos)
 393 {
 394     RECT rcThumb;
 395
 396     TRACKBAR_CalcThumb(infoPtr, thumbPos, &rcThumb);
 397     InflateRect(&rcThumb, 1, 1);
 398     InvalidateRect(infoPtr->hwndSelf, &rcThumb, FALSE);
 399 }
 400
 401 static inline void
 402 TRACKBAR_InvalidateThumbMove (const TRACKBAR_INFO *infoPtr, LONG oldPos, LONG newPos)
 403 {
 404     TRACKBAR_InvalidateThumb (infoPtr, oldPos);
 405     if (newPos != oldPos)
 406         TRACKBAR_InvalidateThumb (infoPtr, newPos);
 407 }
 408
 409 static inline BOOL
 410 TRACKBAR_HasSelection (const TRACKBAR_INFO *infoPtr)
 411 {
 412     return infoPtr->lSelMin != infoPtr->lSelMax;
 413 }
 414
 415 static void
 416 TRACKBAR_CalcSelection (TRACKBAR_INFO *infoPtr)
 417 {
 418     RECT *selection = &infoPtr->rcSelection;
 419     int range = infoPtr->lRangeMax - infoPtr->lRangeMin;
 420     int offsetthumb, height, width;
 421
 422     if (range <= 0) {
 423         SetRectEmpty (selection);
 424     } else {
 425         if (infoPtr->dwStyle & TBS_VERT) {
 426             offsetthumb = (infoPtr->rcThumb.bottom - infoPtr->rcThumb.top)/2;
 427             height = infoPtr->rcChannel.bottom - infoPtr->rcChannel.top - offsetthumb*2;
 428             selection->top    = infoPtr->rcChannel.top + offsetthumb +
 429                 (height*infoPtr->lSelMin)/range;
 430             selection->bottom = infoPtr->rcChannel.top + offsetthumb +
 431                 (height*infoPtr->lSelMax)/range;
 432             selection->left   = infoPtr->rcChannel.left + 3;
 433             selection->right  = infoPtr->rcChannel.right - 3;
 434         } else {
 435             offsetthumb = (infoPtr->rcThumb.right - infoPtr->rcThumb.left)/2;
 436             width = infoPtr->rcChannel.right - infoPtr->rcChannel.left - offsetthumb*2;
 437             selection->left   = infoPtr->rcChannel.left + offsetthumb +
 438                 (width*infoPtr->lSelMin)/range;
 439             selection->right  = infoPtr->rcChannel.left + offsetthumb +
 440                 (width*infoPtr->lSelMax)/range;
 441             selection->top    = infoPtr->rcChannel.top + 3;
 442             selection->bottom = infoPtr->rcChannel.bottom - 3;
 443         }
 444     }
 445
 446     TRACE("selection[%s]\n", wine_dbgstr_rect(selection));
 447 }
 448
 449 static BOOL
 450 TRACKBAR_AutoPage (TRACKBAR_INFO *infoPtr, POINT clickPoint)
 451 {
 452     LONG dir = TRACKBAR_GetAutoPageDirection(infoPtr, clickPoint);
 453     LONG prevPos = infoPtr->lPos;
 454
 455     TRACE("x=%d, y=%d, dir=%d\n", clickPoint.x, clickPoint.y, dir);
 456
 457     if (dir > 0 && (infoPtr->flags & TB_AUTO_PAGE_RIGHT))
 458         TRACKBAR_PageDown(infoPtr);
 459     else if (dir < 0 && (infoPtr->flags & TB_AUTO_PAGE_LEFT))
 460         TRACKBAR_PageUp(infoPtr);
 461     else return FALSE;
 462
 463     infoPtr->flags |= TB_THUMBPOSCHANGED;
 464     TRACKBAR_InvalidateThumbMove (infoPtr, prevPos, infoPtr->lPos);
 465
 466     return TRUE;
 467 }
 468
 469 /* Trackbar drawing code. I like my spaghetti done milanese.  */
 470
 471 static void
 472 TRACKBAR_DrawChannel (const TRACKBAR_INFO *infoPtr, HDC hdc)
 473 {
 474     RECT rcChannel = infoPtr->rcChannel;
 475     HTHEME theme = GetWindowTheme (infoPtr->hwndSelf);
 476
 477     if (theme)
 478     {
 479         DrawThemeBackground (theme, hdc,
 480             (infoPtr->dwStyle & TBS_VERT) ?
 481                 TKP_TRACKVERT : TKP_TRACK, TKS_NORMAL, &rcChannel, 0);
 482     }
 483     else
 484     {
 485         DrawEdge (hdc, &rcChannel, EDGE_SUNKEN, BF_RECT | BF_ADJUST);
 486         if (infoPtr->dwStyle & TBS_ENABLESELRANGE) {             /* fill the channel */
 487             FillRect (hdc, &rcChannel, GetStockObject(WHITE_BRUSH));
 488             if (TRACKBAR_HasSelection(infoPtr))
 489                 FillRect (hdc, &infoPtr->rcSelection, GetSysColorBrush(COLOR_HIGHLIGHT));
 490         }
 491     }
 492 }
 493
 494 static void
 495 TRACKBAR_DrawOneTic (const TRACKBAR_INFO *infoPtr, HDC hdc, LONG ticPos, int flags)
 496 {
 497     int x, y, ox, oy, range, side, indent = 0, len = 3;
 498     int offsetthumb;
 499     RECT rcTics;
 500
 501     if (flags & TBS_VERT) {
 502         offsetthumb = (infoPtr->rcThumb.bottom - infoPtr->rcThumb.top)/2;
 503         rcTics.left = infoPtr->rcThumb.left - 2;
 504         rcTics.right = infoPtr->rcThumb.right + 2;
 505         rcTics.top    = infoPtr->rcChannel.top + offsetthumb + 1;
 506         rcTics.bottom = infoPtr->rcChannel.bottom - offsetthumb;
 507     } else {
 508         offsetthumb = (infoPtr->rcThumb.right - infoPtr->rcThumb.left)/2;
 509         rcTics.left   = infoPtr->rcChannel.left + offsetthumb + 1;
 510         rcTics.right  = infoPtr->rcChannel.right - offsetthumb;
 511         rcTics.top = infoPtr->rcThumb.top - 2;
 512         rcTics.bottom = infoPtr->rcThumb.bottom + 2;
 513     }
 514
 515     if (flags & (TBS_TOP | TBS_LEFT)) {
 516         x = rcTics.left;
 517         y = rcTics.top;
 518         side = -1;
 519     } else {
 520         x = rcTics.right;
 521         y = rcTics.bottom;
 522         side = 1;
 523     }
 524
 525     range = infoPtr->lRangeMax - infoPtr->lRangeMin;
 526     if (range <= 0)
 527       range = 1; /* to avoid division by zero */
 528
 529     if (flags & TIC_SELECTIONMARK) {
 530         indent = (flags & TIC_SELECTIONMARKMIN) ? -1 : 1;
 531     } else if (flags & TIC_EDGE) {
 532         len++;
 533     }
 534
 535     if (flags & TBS_VERT) {
 536         int height = rcTics.bottom - rcTics.top;
 537         y = rcTics.top + (height*(ticPos - infoPtr->lRangeMin))/range;
 538     } else {
 539         int width = rcTics.right - rcTics.left;
 540         x = rcTics.left + (width*(ticPos - infoPtr->lRangeMin))/range;
 541     }
 542
 543     ox = x;
 544     oy = y;
 545     MoveToEx(hdc, x, y, 0);
 546     if (flags & TBS_VERT) x += len * side;
 547     else y += len * side;
 548     LineTo(hdc, x, y);
 549
 550     if (flags & TIC_SELECTIONMARK) {
 551         if (flags & TBS_VERT) {
 552             x -= side;
 553         } else {
 554             y -= side;
 555         }
 556         MoveToEx(hdc, x, y, 0);
 557         if (flags & TBS_VERT) {
 558             y += 2 * indent;
 559         } else {
 560             x += 2 * indent;
 561         }
 562
 563         LineTo(hdc, x, y);
 564         LineTo(hdc, ox, oy);
 565     }
 566 }
 567
 568
 569 static inline void
 570 TRACKBAR_DrawTic (const TRACKBAR_INFO *infoPtr, HDC hdc, LONG ticPos, int flags)
 571 {
 572     if ((flags & (TBS_LEFT | TBS_TOP)) || (flags & TBS_BOTH))
 573         TRACKBAR_DrawOneTic (infoPtr, hdc, ticPos, flags | TBS_LEFT);
 574
 575     if (!(flags & (TBS_LEFT | TBS_TOP)) || (flags & TBS_BOTH))
 576         TRACKBAR_DrawOneTic (infoPtr, hdc, ticPos, flags & ~TBS_LEFT);
 577 }
 578
 579 static void
 580 TRACKBAR_DrawTics (const TRACKBAR_INFO *infoPtr, HDC hdc)
 581 {
 582     unsigned int i;
 583     int ticFlags = infoPtr->dwStyle & 0x0f;
 584     LOGPEN ticPen = { PS_SOLID, {1, 0}, GetSysColor (COLOR_3DDKSHADOW) };
 585     HPEN hOldPen, hTicPen;
 586     HTHEME theme = GetWindowTheme (infoPtr->hwndSelf);
 587
 588     if (theme)
 589     {
 590         int part = (infoPtr->dwStyle & TBS_VERT) ? TKP_TICSVERT : TKP_TICS;
 591         GetThemeColor (theme, part, TSS_NORMAL, TMT_COLOR, &ticPen.lopnColor);
 592     }
 593     /* create the pen to draw the tics with */
 594     hTicPen = CreatePenIndirect(&ticPen);
 595     hOldPen = hTicPen ? SelectObject(hdc, hTicPen) : 0;
 596
 597     /* actually draw the tics */
 598     for (i=0; i<infoPtr->uNumTics; i++)
 599         TRACKBAR_DrawTic (infoPtr, hdc, infoPtr->tics[i], ticFlags);
 600
 601     TRACKBAR_DrawTic (infoPtr, hdc, infoPtr->lRangeMin, ticFlags | TIC_EDGE);
 602     TRACKBAR_DrawTic (infoPtr, hdc, infoPtr->lRangeMax, ticFlags | TIC_EDGE);
 603
 604     if ((infoPtr->dwStyle & TBS_ENABLESELRANGE) && TRACKBAR_HasSelection(infoPtr)) {
 605         TRACKBAR_DrawTic (infoPtr, hdc, infoPtr->lSelMin,
 606                           ticFlags | TIC_SELECTIONMARKMIN);
 607         TRACKBAR_DrawTic (infoPtr, hdc, infoPtr->lSelMax,
 608                           ticFlags | TIC_SELECTIONMARKMAX);
 609     }
 610
 611     /* clean up the pen, if we created one */
 612     if (hTicPen) {
 613         SelectObject(hdc, hOldPen);
 614         DeleteObject(hTicPen);
 615     }
 616 }
 617
 618 static void
 619 TRACKBAR_DrawThumb (const TRACKBAR_INFO *infoPtr, HDC hdc)
 620 {
 621     HBRUSH oldbr;
 622     HPEN  oldpen;
 623     RECT thumb = infoPtr->rcThumb;
 624     int BlackUntil = 3;
 625     int PointCount = 6;
 626     POINT points[6];
 627     int fillClr;
 628     int PointDepth;
 629     HTHEME theme = GetWindowTheme (infoPtr->hwndSelf);
 630
 631     if (theme)
 632     {
 633         int partId;
 634         int stateId;
 635         if (infoPtr->dwStyle & TBS_BOTH)
 636             partId = (infoPtr->dwStyle & TBS_VERT) ? TKP_THUMBVERT : TKP_THUMB;
 637         else if (infoPtr->dwStyle & TBS_LEFT)
 638             partId = (infoPtr->dwStyle & TBS_VERT) ? TKP_THUMBLEFT : TKP_THUMBTOP;
 639         else
 640             partId = (infoPtr->dwStyle & TBS_VERT) ? TKP_THUMBRIGHT : TKP_THUMBBOTTOM;
 641
 642         if (infoPtr->dwStyle & WS_DISABLED)
 643             stateId = TUS_DISABLED;
 644         else if (infoPtr->flags & TB_DRAG_MODE)
 645             stateId = TUS_PRESSED;
 646         else if (infoPtr->flags & TB_THUMB_HOT)
 647             stateId = TUS_HOT;
 648         else
 649             stateId = TUS_NORMAL;
 650
 651         DrawThemeBackground (theme, hdc, partId, stateId, &thumb, 0);
 652
 653         return;
 654     }
 655
 656     fillClr = infoPtr->flags & TB_DRAG_MODE ? COLOR_BTNHILIGHT : COLOR_BTNFACE;
 657     oldbr = SelectObject (hdc, GetSysColorBrush(fillClr));
 658     SetPolyFillMode (hdc, WINDING);
 659
 660     if (infoPtr->dwStyle & TBS_BOTH)
 661     {
 662        points[0].x=thumb.right;
 663        points[0].y=thumb.top;
 664        points[1].x=thumb.right;
 665        points[1].y=thumb.bottom;
 666        points[2].x=thumb.left;
 667        points[2].y=thumb.bottom;
 668        points[3].x=thumb.left;
 669        points[3].y=thumb.top;
 670        points[4].x=points[0].x;
 671        points[4].y=points[0].y;
 672        PointCount = 5;
 673        BlackUntil = 3;
 674     }
 675     else
 676     {
 677         if (infoPtr->dwStyle & TBS_VERT)
 678         {
 679           PointDepth = (thumb.bottom - thumb.top) / 2;
 680           if (infoPtr->dwStyle & TBS_LEFT)
 681           {
 682             points[0].x=thumb.right;
 683             points[0].y=thumb.top;
 684             points[1].x=thumb.right;
 685             points[1].y=thumb.bottom;
 686             points[2].x=thumb.left + PointDepth;
 687             points[2].y=thumb.bottom;
 688             points[3].x=thumb.left;
 689             points[3].y=(thumb.bottom - thumb.top) / 2 + thumb.top + 1;
 690             points[4].x=thumb.left + PointDepth;
 691             points[4].y=thumb.top;
 692             points[5].x=points[0].x;
 693             points[5].y=points[0].y;
 694             BlackUntil = 4;
 695           }
 696           else
 697           {
 698             points[0].x=thumb.right;
 699             points[0].y=(thumb.bottom - thumb.top) / 2 + thumb.top + 1;
 700             points[1].x=thumb.right - PointDepth;
 701             points[1].y=thumb.bottom;
 702             points[2].x=thumb.left;
 703             points[2].y=thumb.bottom;
 704             points[3].x=thumb.left;
 705             points[3].y=thumb.top;
 706             points[4].x=thumb.right - PointDepth;
 707             points[4].y=thumb.top;
 708             points[5].x=points[0].x;
 709             points[5].y=points[0].y;
 710           }
 711         }
 712         else
 713         {
 714           PointDepth = (thumb.right - thumb.left) / 2;
 715           if (infoPtr->dwStyle & TBS_TOP)
 716           {
 717             points[0].x=(thumb.right - thumb.left) / 2 + thumb.left + 1;
 718             points[0].y=thumb.top;
 719             points[1].x=thumb.right;
 720             points[1].y=thumb.top + PointDepth;
 721             points[2].x=thumb.right;
 722             points[2].y=thumb.bottom;
 723             points[3].x=thumb.left;
 724             points[3].y=thumb.bottom;
 725             points[4].x=thumb.left;
 726             points[4].y=thumb.top + PointDepth;
 727             points[5].x=points[0].x;
 728             points[5].y=points[0].y;
 729             BlackUntil = 4;
 730           }
 731           else
 732           {
 733             points[0].x=thumb.right;
 734             points[0].y=thumb.top;
 735             points[1].x=thumb.right;
 736             points[1].y=thumb.bottom - PointDepth;
 737             points[2].x=(thumb.right - thumb.left) / 2 + thumb.left + 1;
 738             points[2].y=thumb.bottom;
 739             points[3].x=thumb.left;
 740             points[3].y=thumb.bottom - PointDepth;
 741             points[4].x=thumb.left;
 742             points[4].y=thumb.top;
 743             points[5].x=points[0].x;
 744             points[5].y=points[0].y;
 745           }
 746         }
 747
 748     }
 749
 750     /* Draw the thumb now */
 751     Polygon (hdc, points, PointCount);
 752     oldpen = SelectObject(hdc, GetStockObject(BLACK_PEN));
 753     Polyline(hdc,points, BlackUntil);
 754     SelectObject(hdc, GetStockObject(WHITE_PEN));
 755     Polyline(hdc, &points[BlackUntil-1], PointCount+1-BlackUntil);
 756     SelectObject(hdc, oldpen);
 757     SelectObject(hdc, oldbr);
 758 }
 759
 760
 761 static inline void
 762 TRACKBAR_ActivateToolTip (const TRACKBAR_INFO *infoPtr, BOOL fShow)
 763 {
 764     TTTOOLINFOW ti;
 765
 766     if (!infoPtr->hwndToolTip) return;
 767
 768     ZeroMemory(&ti, sizeof(ti));
 769     ti.cbSize = sizeof(ti);
 770     ti.hwnd   = infoPtr->hwndSelf;
 771
 772     SendMessageW (infoPtr->hwndToolTip, TTM_TRACKACTIVATE, fShow, (LPARAM)&ti);
 773 }
 774
 775
 776 static void
 777 TRACKBAR_UpdateToolTip (const TRACKBAR_INFO *infoPtr)
 778 {
 779     WCHAR buf[80];
 780     static const WCHAR fmt[] = { '%', 'l', 'd', 0 };
 781     TTTOOLINFOW ti;
 782     POINT pt;
 783     RECT rcClient;
 784     LRESULT size;
 785
 786     if (!infoPtr->hwndToolTip) return;
 787
 788     ZeroMemory(&ti, sizeof(ti));
 789     ti.cbSize = sizeof(ti);
 790     ti.hwnd   = infoPtr->hwndSelf;
 791     ti.uFlags = TTF_IDISHWND | TTF_TRACK | TTF_ABSOLUTE;
 792
 793     wsprintfW (buf, fmt, infoPtr->lPos);
 794     ti.lpszText = buf;
 795     SendMessageW (infoPtr->hwndToolTip, TTM_UPDATETIPTEXTW, 0, (LPARAM)&ti);
 796
 797     GetClientRect (infoPtr->hwndSelf, &rcClient);
 798     size = SendMessageW (infoPtr->hwndToolTip, TTM_GETBUBBLESIZE, 0, (LPARAM)&ti);
 799     if (infoPtr->dwStyle & TBS_VERT) {
 800         if (infoPtr->fLocation == TBTS_LEFT)
 801             pt.x = 0 - LOWORD(size) - TOOLTIP_OFFSET;
 802         else
 803             pt.x = rcClient.right + TOOLTIP_OFFSET;
 804         pt.y = (infoPtr->rcThumb.top + infoPtr->rcThumb.bottom - HIWORD(size))/2;
 805     } else {
 806         if (infoPtr->fLocation == TBTS_TOP)
 807             pt.y = 0 - HIWORD(size) - TOOLTIP_OFFSET;
 808         else
 809             pt.y = rcClient.bottom + TOOLTIP_OFFSET;
 810         pt.x = (infoPtr->rcThumb.left + infoPtr->rcThumb.right - LOWORD(size))/2;
 811     }
 812     ClientToScreen(infoPtr->hwndSelf, &pt);
 813
 814     SendMessageW (infoPtr->hwndToolTip, TTM_TRACKPOSITION,
 815                   0, MAKELPARAM(pt.x, pt.y));
 816 }
 817
 818
 819 static void
 820 TRACKBAR_Refresh (TRACKBAR_INFO *infoPtr, HDC hdcDst)
 821 {
 822     RECT rcClient;
 823     HDC hdc;
 824     HBITMAP hOldBmp = 0, hOffScreenBmp = 0;
 825     NMCUSTOMDRAW nmcd;
 826     int gcdrf, icdrf;
 827
 828     if (infoPtr->flags & TB_THUMBCHANGED) {
 829         TRACKBAR_UpdateThumb (infoPtr);
 830         if (infoPtr->flags & TB_THUMBSIZECHANGED)
 831             TRACKBAR_CalcChannel (infoPtr);
 832     }
 833     if (infoPtr->flags & TB_SELECTIONCHANGED)
 834         TRACKBAR_CalcSelection (infoPtr);
 835
 836     if (infoPtr->flags & TB_DRAG_MODE)
 837         TRACKBAR_UpdateToolTip (infoPtr);
 838
 839     infoPtr->flags &= ~ (TB_THUMBCHANGED | TB_SELECTIONCHANGED);
 840
 841     GetClientRect (infoPtr->hwndSelf, &rcClient);
 842
 843     /* try to render offscreen, if we fail, carrry onscreen */
 844     hdc = CreateCompatibleDC(hdcDst);
 845     if (hdc) {
 846         hOffScreenBmp = CreateCompatibleBitmap(hdcDst, rcClient.right, rcClient.bottom);
 847         if (hOffScreenBmp) {
 848             hOldBmp = SelectObject(hdc, hOffScreenBmp);
 849         } else {
 850             DeleteObject(hdc);
 851             hdc = hdcDst;
 852         }
 853     } else {
 854         hdc = hdcDst;
 855     }
 856
 857     ZeroMemory(&nmcd, sizeof(nmcd));
 858     nmcd.hdr.hwndFrom = infoPtr->hwndSelf;
 859     nmcd.hdr.idFrom = GetWindowLongPtrW (infoPtr->hwndSelf, GWLP_ID);
 860     nmcd.hdr.code = NM_CUSTOMDRAW;
 861     nmcd.hdc = hdc;
 862
 863     /* start the paint cycle */
 864     nmcd.rc = rcClient;
 865     gcdrf = notify_customdraw(infoPtr, &nmcd, CDDS_PREPAINT);
 866     if (gcdrf & CDRF_SKIPDEFAULT) goto cleanup;
 867
 868     /* Erase background */
 869     if (gcdrf == CDRF_DODEFAULT ||
 870         notify_customdraw(infoPtr, &nmcd, CDDS_PREERASE) != CDRF_SKIPDEFAULT) {
 871         if (GetWindowTheme (infoPtr->hwndSelf)) {
 872             DrawThemeParentBackground (infoPtr->hwndSelf, hdc, 0);
 873         }
 874         else
 875             FillRect (hdc, &rcClient, GetSysColorBrush(COLOR_BTNFACE));
 876         if (gcdrf != CDRF_DODEFAULT)
 877             notify_customdraw(infoPtr, &nmcd, CDDS_POSTERASE);
 878     }
 879
 880     /* draw channel */
 881     if (gcdrf & CDRF_NOTIFYITEMDRAW) {
 882         nmcd.dwItemSpec = TBCD_CHANNEL;
 883         nmcd.uItemState = CDIS_DEFAULT;
 884         nmcd.rc = infoPtr->rcChannel;
 885         icdrf = notify_customdraw(infoPtr, &nmcd, CDDS_ITEMPREPAINT);
 886     } else icdrf = CDRF_DODEFAULT;
 887     if ( !(icdrf & CDRF_SKIPDEFAULT) ) {
 888         TRACKBAR_DrawChannel (infoPtr, hdc);
 889         if (icdrf & CDRF_NOTIFYPOSTPAINT)
 890             notify_customdraw(infoPtr, &nmcd, CDDS_ITEMPOSTPAINT);
 891     }
 892
 893
 894     /* draw tics */
 895     if (!(infoPtr->dwStyle & TBS_NOTICKS)) {
 896         if (gcdrf & CDRF_NOTIFYITEMDRAW) {
 897             nmcd.dwItemSpec = TBCD_TICS;
 898             nmcd.uItemState = CDIS_DEFAULT;
 899             nmcd.rc = rcClient;
 900             icdrf = notify_customdraw(infoPtr, &nmcd, CDDS_ITEMPREPAINT);
 901         } else icdrf = CDRF_DODEFAULT;
 902         if ( !(icdrf & CDRF_SKIPDEFAULT) ) {
 903             TRACKBAR_DrawTics (infoPtr, hdc);
 904             if (icdrf & CDRF_NOTIFYPOSTPAINT)
 905                 notify_customdraw(infoPtr, &nmcd, CDDS_ITEMPOSTPAINT);
 906         }
 907     }
 908
 909     /* draw thumb */
 910     if (!(infoPtr->dwStyle & TBS_NOTHUMB)) {
 911         if (gcdrf & CDRF_NOTIFYITEMDRAW) {
 912             nmcd.dwItemSpec = TBCD_THUMB;
 913             nmcd.uItemState = infoPtr->flags & TB_DRAG_MODE ? CDIS_HOT : CDIS_DEFAULT;
 914             nmcd.rc = infoPtr->rcThumb;
 915             icdrf = notify_customdraw(infoPtr, &nmcd, CDDS_ITEMPREPAINT);
 916         } else icdrf = CDRF_DODEFAULT;
 917         if ( !(icdrf & CDRF_SKIPDEFAULT) ) {
 918             TRACKBAR_DrawThumb(infoPtr, hdc);
 919             if (icdrf & CDRF_NOTIFYPOSTPAINT)
 920                 notify_customdraw(infoPtr, &nmcd, CDDS_ITEMPOSTPAINT);
 921         }
 922     }
 923
 924     /* draw focus rectangle */
 925     if (infoPtr->bFocussed) {
 926         DrawFocusRect(hdc, &rcClient);
 927     }
 928
 929     /* finish up the painting */
 930     if (gcdrf & CDRF_NOTIFYPOSTPAINT)
 931         notify_customdraw(infoPtr, &nmcd, CDDS_POSTPAINT);
 932
 933 cleanup:
 934     /* cleanup, if we rendered offscreen */
 935     if (hdc != hdcDst) {
 936         BitBlt(hdcDst, 0, 0, rcClient.right, rcClient.bottom, hdc, 0, 0, SRCCOPY);
 937         SelectObject(hdc, hOldBmp);
 938         DeleteObject(hOffScreenBmp);
 939         DeleteObject(hdc);
 940     }
 941 }
 942
 943
 944 static void
 945 TRACKBAR_AlignBuddies (const TRACKBAR_INFO *infoPtr)
 946 {
 947     HWND hwndParent = GetParent (infoPtr->hwndSelf);
 948     RECT rcSelf, rcBuddy;
 949     INT x, y;
 950
 951     GetWindowRect (infoPtr->hwndSelf, &rcSelf);
 952     MapWindowPoints (HWND_DESKTOP, hwndParent, (LPPOINT)&rcSelf, 2);
 953
 954     /* align buddy left or above */
 955     if (infoPtr->hwndBuddyLA) {
 956         GetWindowRect (infoPtr->hwndBuddyLA, &rcBuddy);
 957         MapWindowPoints (HWND_DESKTOP, hwndParent, (LPPOINT)&rcBuddy, 2);
 958
 959         if (infoPtr->dwStyle & TBS_VERT) {
 960             x = (infoPtr->rcChannel.right + infoPtr->rcChannel.left) / 2 -
 961                 (rcBuddy.right - rcBuddy.left) / 2 + rcSelf.left;
 962             y = rcSelf.top - (rcBuddy.bottom - rcBuddy.top);
 963         }
 964         else {
 965             x = rcSelf.left - (rcBuddy.right - rcBuddy.left);
 966             y = (infoPtr->rcChannel.bottom + infoPtr->rcChannel.top) / 2 -
 967                 (rcBuddy.bottom - rcBuddy.top) / 2 + rcSelf.top;
 968         }
 969
 970         SetWindowPos (infoPtr->hwndBuddyLA, 0, x, y, 0, 0,
 971                       SWP_NOZORDER | SWP_NOSIZE);
 972     }
 973
 974
 975     /* align buddy right or below */
 976     if (infoPtr->hwndBuddyRB) {
 977         GetWindowRect (infoPtr->hwndBuddyRB, &rcBuddy);
 978         MapWindowPoints (HWND_DESKTOP, hwndParent, (LPPOINT)&rcBuddy, 2);
 979
 980         if (infoPtr->dwStyle & TBS_VERT) {
 981             x = (infoPtr->rcChannel.right + infoPtr->rcChannel.left) / 2 -
 982                 (rcBuddy.right - rcBuddy.left) / 2 + rcSelf.left;
 983             y = rcSelf.bottom;
 984         }
 985         else {
 986             x = rcSelf.right;
 987             y = (infoPtr->rcChannel.bottom + infoPtr->rcChannel.top) / 2 -
 988                 (rcBuddy.bottom - rcBuddy.top) / 2 + rcSelf.top;
 989         }
 990         SetWindowPos (infoPtr->hwndBuddyRB, 0, x, y, 0, 0,
 991                       SWP_NOZORDER | SWP_NOSIZE);
 992     }
 993 }
 994
 995
 996 static LRESULT
 997 TRACKBAR_ClearSel (TRACKBAR_INFO *infoPtr, BOOL fRedraw)
 998 {
 999     infoPtr->lSelMin = 0;
1000     infoPtr->lSelMax = 0;
1001     infoPtr->flags |= TB_SELECTIONCHANGED;
1002
1003     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
1004
1005     return 0;
1006 }
1007
1008
1009 static LRESULT
1010 TRACKBAR_ClearTics (TRACKBAR_INFO *infoPtr, BOOL fRedraw)
1011 {
1012     if (infoPtr->tics) {
1013         Free (infoPtr->tics);
1014         infoPtr->tics = NULL;
1015         infoPtr->uNumTics = 0;
1016     }
1017
1018     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
1019
1020     return 0;
1021 }
1022
1023
1024 static inline LRESULT
1025 TRACKBAR_GetChannelRect (const TRACKBAR_INFO *infoPtr, LPRECT lprc)
1026 {
1027     if (lprc == NULL) return 0;
1028
1029     lprc->left   = infoPtr->rcChannel.left;
1030     lprc->right  = infoPtr->rcChannel.right;
1031     lprc->bottom = infoPtr->rcChannel.bottom;
1032     lprc->top    = infoPtr->rcChannel.top;
1033
1034     return 0;
1035 }
1036
1037
1038 static inline LONG
1039 TRACKBAR_GetNumTics (const TRACKBAR_INFO *infoPtr)
1040 {
1041     if (infoPtr->dwStyle & TBS_NOTICKS) return 0;
1042
1043     return infoPtr->uNumTics + 2;
1044 }
1045
1046
1047 static int comp_tics (const void *ap, const void *bp)
1048 {
1049     const DWORD a = *(const DWORD *)ap;
1050     const DWORD b = *(const DWORD *)bp;
1051
1052     TRACE("(a=%d, b=%d)\n", a, b);
1053     if (a < b) return -1;
1054     if (a > b) return 1;
1055     return 0;
1056 }
1057
1058
1059 static inline LONG
1060 TRACKBAR_GetTic (const TRACKBAR_INFO *infoPtr, INT iTic)
1061 {
1062     if ((iTic < 0) || (iTic >= infoPtr->uNumTics) || !infoPtr->tics)
1063         return -1;
1064
1065     qsort(infoPtr->tics, infoPtr->uNumTics, sizeof(DWORD), comp_tics);
1066     return infoPtr->tics[iTic];
1067 }
1068
1069
1070 static inline LONG
1071 TRACKBAR_GetTicPos (const TRACKBAR_INFO *infoPtr, INT iTic)
1072 {
1073     LONG range, width, pos, tic;
1074     int offsetthumb;
1075
1076     if ((iTic < 0) || (iTic >= infoPtr->uNumTics) || !infoPtr->tics)
1077         return -1;
1078
1079     tic   = TRACKBAR_GetTic (infoPtr, iTic);
1080     range = infoPtr->lRangeMax - infoPtr->lRangeMin;
1081     if (range <= 0) range = 1;
1082     offsetthumb = (infoPtr->rcThumb.right - infoPtr->rcThumb.left)/2;
1083     width = infoPtr->rcChannel.right - infoPtr->rcChannel.left - offsetthumb*2;
1084     pos   = infoPtr->rcChannel.left + offsetthumb + (width * tic) / range;
1085
1086     return pos;
1087 }
1088
1089
1090 static HWND
1091 TRACKBAR_SetBuddy (TRACKBAR_INFO *infoPtr, BOOL fLocation, HWND hwndBuddy)
1092 {
1093     HWND hwndTemp;
1094
1095     if (fLocation) {
1096         /* buddy is left or above */
1097         hwndTemp = infoPtr->hwndBuddyLA;
1098         infoPtr->hwndBuddyLA = hwndBuddy;
1099     }
1100     else {
1101         /* buddy is right or below */
1102         hwndTemp = infoPtr->hwndBuddyRB;
1103         infoPtr->hwndBuddyRB = hwndBuddy;
1104     }
1105
1106     TRACKBAR_AlignBuddies (infoPtr);
1107
1108     return hwndTemp;
1109 }
1110
1111
1112 static inline LONG
1113 TRACKBAR_SetLineSize (TRACKBAR_INFO *infoPtr, LONG lLineSize)
1114 {
1115     LONG lTemp = infoPtr->lLineSize;
1116
1117     infoPtr->lLineSize = lLineSize;
1118
1119     return lTemp;
1120 }
1121
1122
1123 static inline LONG
1124 TRACKBAR_SetPageSize (TRACKBAR_INFO *infoPtr, LONG lPageSize)
1125 {
1126     LONG lTemp = infoPtr->lPageSize;
1127
1128     if (lPageSize != -1)
1129         infoPtr->lPageSize = lPageSize;
1130     else
1131         infoPtr->lPageSize = TB_DEFAULTPAGESIZE;
1132
1133     return lTemp;
1134 }
1135
1136
1137 static inline LRESULT
1138 TRACKBAR_SetPos (TRACKBAR_INFO *infoPtr, BOOL fPosition, LONG lPosition)
1139 {
1140     LONG oldPos = infoPtr->lPos;
1141     infoPtr->lPos = lPosition;
1142
1143     if (infoPtr->lPos < infoPtr->lRangeMin)
1144         infoPtr->lPos = infoPtr->lRangeMin;
1145
1146     if (infoPtr->lPos > infoPtr->lRangeMax)
1147         infoPtr->lPos = infoPtr->lRangeMax;
1148     infoPtr->flags |= TB_THUMBPOSCHANGED;
1149
1150     if (fPosition && oldPos != lPosition) TRACKBAR_InvalidateThumbMove(infoPtr, oldPos, lPosition);
1151
1152     return 0;
1153 }
1154
1155
1156 static inline LRESULT
1157 TRACKBAR_SetRange (TRACKBAR_INFO *infoPtr, BOOL fRedraw, LONG lRange)
1158 {
1159     infoPtr->lRangeMin = (SHORT)LOWORD(lRange);
1160     infoPtr->lRangeMax = (SHORT)HIWORD(lRange);
1161
1162     if (infoPtr->lPos < infoPtr->lRangeMin) {
1163         infoPtr->lPos = infoPtr->lRangeMin;
1164         infoPtr->flags |= TB_THUMBPOSCHANGED;
1165     }
1166
1167     if (infoPtr->lPos > infoPtr->lRangeMax) {
1168         infoPtr->lPos = infoPtr->lRangeMax;
1169         infoPtr->flags |= TB_THUMBPOSCHANGED;
1170     }
1171
1172     infoPtr->lPageSize = (infoPtr->lRangeMax - infoPtr->lRangeMin) / 5;
1173     if (infoPtr->lPageSize == 0) infoPtr->lPageSize = 1;
1174
1175     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
1176
1177     return 0;
1178 }
1179
1180
1181 static inline LRESULT
1182 TRACKBAR_SetRangeMax (TRACKBAR_INFO *infoPtr, BOOL fRedraw, LONG lMax)
1183 {
1184     infoPtr->lRangeMax = lMax;
1185     if (infoPtr->lPos > infoPtr->lRangeMax) {
1186         infoPtr->lPos = infoPtr->lRangeMax;
1187         infoPtr->flags |= TB_THUMBPOSCHANGED;
1188     }
1189
1190     infoPtr->lPageSize = (infoPtr->lRangeMax - infoPtr->lRangeMin) / 5;
1191     if (infoPtr->lPageSize == 0) infoPtr->lPageSize = 1;
1192
1193     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
1194
1195     return 0;
1196 }
1197
1198
1199 static inline LRESULT
1200 TRACKBAR_SetRangeMin (TRACKBAR_INFO *infoPtr, BOOL fRedraw, LONG lMin)
1201 {
1202     infoPtr->lRangeMin = lMin;
1203     if (infoPtr->lPos < infoPtr->lRangeMin) {
1204         infoPtr->lPos = infoPtr->lRangeMin;
1205         infoPtr->flags |= TB_THUMBPOSCHANGED;
1206     }
1207
1208     infoPtr->lPageSize = (infoPtr->lRangeMax - infoPtr->lRangeMin) / 5;
1209     if (infoPtr->lPageSize == 0) infoPtr->lPageSize = 1;
1210
1211     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
1212
1213     return 0;
1214 }
1215
1216
1217 static inline LRESULT
1218 TRACKBAR_SetSel (TRACKBAR_INFO *infoPtr, BOOL fRedraw, LONG lSel)
1219 {
1220     if (!(infoPtr->dwStyle & TBS_ENABLESELRANGE)){
1221         infoPtr->lSelMin = 0;
1222         infoPtr->lSelMax = 0;
1223         return 0;
1224     }
1225
1226     infoPtr->lSelMin = (SHORT)LOWORD(lSel);
1227     infoPtr->lSelMax = (SHORT)HIWORD(lSel);
1228     infoPtr->flags |= TB_SELECTIONCHANGED;
1229
1230     if (infoPtr->lSelMin < infoPtr->lRangeMin)
1231         infoPtr->lSelMin = infoPtr->lRangeMin;
1232     if (infoPtr->lSelMax > infoPtr->lRangeMax)
1233         infoPtr->lSelMax = infoPtr->lRangeMax;
1234
1235     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
1236
1237     return 0;
1238 }
1239
1240
1241 static inline LRESULT
1242 TRACKBAR_SetSelEnd (TRACKBAR_INFO *infoPtr, BOOL fRedraw, LONG lEnd)
1243 {
1244     if (!(infoPtr->dwStyle & TBS_ENABLESELRANGE)){
1245         infoPtr->lSelMax = 0;
1246         return 0;
1247     }
1248
1249     infoPtr->lSelMax = lEnd;
1250     infoPtr->flags |= TB_SELECTIONCHANGED;
1251
1252     if (infoPtr->lSelMax > infoPtr->lRangeMax)
1253         infoPtr->lSelMax = infoPtr->lRangeMax;
1254
1255     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
1256
1257     return 0;
1258 }
1259
1260
1261 static inline LRESULT
1262 TRACKBAR_SetSelStart (TRACKBAR_INFO *infoPtr, BOOL fRedraw, LONG lStart)
1263 {
1264     if (!(infoPtr->dwStyle & TBS_ENABLESELRANGE)){
1265         infoPtr->lSelMin = 0;
1266         return 0;
1267     }
1268
1269     infoPtr->lSelMin = lStart;
1270     infoPtr->flags  |=TB_SELECTIONCHANGED;
1271
1272     if (infoPtr->lSelMin < infoPtr->lRangeMin)
1273         infoPtr->lSelMin = infoPtr->lRangeMin;
1274
1275     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
1276
1277     return 0;
1278 }
1279
1280
1281 static inline LRESULT
1282 TRACKBAR_SetThumbLength (TRACKBAR_INFO *infoPtr, UINT iLength)
1283 {
1284     if (infoPtr->dwStyle & TBS_FIXEDLENGTH) {
1285         infoPtr->uThumbLen = iLength;
1286         infoPtr->flags |= TB_THUMBSIZECHANGED;
1287         InvalidateRect (infoPtr->hwndSelf, &infoPtr->rcThumb, FALSE);
1288     }
1289
1290     return 0;
1291 }
1292
1293
1294 static inline LRESULT
1295 TRACKBAR_SetTic (TRACKBAR_INFO *infoPtr, LONG lPos)
1296 {
1297     if ((lPos < infoPtr->lRangeMin) || (lPos> infoPtr->lRangeMax))
1298         return FALSE;
1299
1300     TRACE("lPos=%d\n", lPos);
1301
1302     infoPtr->uNumTics++;
1303     infoPtr->tics=ReAlloc( infoPtr->tics,
1304                                     (infoPtr->uNumTics)*sizeof (DWORD));
1305     if (!infoPtr->tics) {
1306         infoPtr->uNumTics = 0;
1307         notify(infoPtr, NM_OUTOFMEMORY);
1308         return FALSE;
1309     }
1310     infoPtr->tics[infoPtr->uNumTics-1] = lPos;
1311
1312     TRACKBAR_InvalidateAll(infoPtr);
1313
1314     return TRUE;
1315 }
1316
1317
1318 static inline LRESULT
1319 TRACKBAR_SetTicFreq (TRACKBAR_INFO *infoPtr, WORD wFreq)
1320 {
1321     if (infoPtr->dwStyle & TBS_AUTOTICKS) {
1322         infoPtr->uTicFreq = wFreq;
1323         TRACKBAR_RecalculateTics (infoPtr);
1324         TRACKBAR_InvalidateAll(infoPtr);
1325     }
1326
1327     return 0;
1328 }
1329
1330
1331 static inline INT
1332 TRACKBAR_SetTipSide (TRACKBAR_INFO *infoPtr, INT fLocation)
1333 {
1334     INT fTemp = infoPtr->fLocation;
1335
1336     infoPtr->fLocation = fLocation;
1337
1338     return fTemp;
1339 }
1340
1341
1342 static inline LRESULT
1343 TRACKBAR_SetToolTips (TRACKBAR_INFO *infoPtr, HWND hwndTT)
1344 {
1345     infoPtr->hwndToolTip = hwndTT;
1346
1347     return 0;
1348 }
1349
1350
1351 static inline BOOL
1352 TRACKBAR_SetUnicodeFormat (TRACKBAR_INFO *infoPtr, BOOL fUnicode)
1353 {
1354     BOOL bTemp = infoPtr->bUnicode;
1355
1356     infoPtr->bUnicode = fUnicode;
1357
1358     return bTemp;
1359 }
1360
1361
1362 static LRESULT
1363 TRACKBAR_InitializeThumb (TRACKBAR_INFO *infoPtr)
1364 {
1365     RECT rect;
1366     int clientWidth, clientMetric;
1367
1368     /* initial thumb length */
1369     clientMetric = (infoPtr->dwStyle & TBS_ENABLESELRANGE) ? 23 : 21;
1370     GetClientRect(infoPtr->hwndSelf,&rect);
1371     if (infoPtr->dwStyle & TBS_VERT) {
1372         clientWidth = rect.right - rect.left;
1373     } else {
1374         clientWidth = rect.bottom - rect.top;
1375     }
1376     if (clientWidth >= clientMetric)
1377         infoPtr->uThumbLen = clientMetric;
1378     else
1379         infoPtr->uThumbLen = clientWidth > 9 ? clientWidth - 6 : 4;
1380
1381     TRACKBAR_CalcChannel (infoPtr);
1382     TRACKBAR_UpdateThumb (infoPtr);
1383     infoPtr->flags &= ~TB_SELECTIONCHANGED;
1384
1385     return 0;
1386 }
1387
1388
1389 static LRESULT
1390 TRACKBAR_Create (HWND hwnd, const CREATESTRUCTW *lpcs)
1391 {
1392     TRACKBAR_INFO *infoPtr;
1393
1394     infoPtr = Alloc (sizeof(TRACKBAR_INFO));
1395     if (!infoPtr) return -1;
1396     SetWindowLongPtrW (hwnd, 0, (DWORD_PTR)infoPtr);
1397
1398     /* set default values */
1399     infoPtr->hwndSelf  = hwnd;
1400     infoPtr->dwStyle   = lpcs->style;
1401     infoPtr->lRangeMin = 0;
1402     infoPtr->lRangeMax = 100;
1403     infoPtr->lLineSize = 1;
1404     infoPtr->lPageSize = TB_DEFAULTPAGESIZE;
1405     infoPtr->lSelMin   = 0;
1406     infoPtr->lSelMax   = 0;
1407     infoPtr->lPos      = 0;
1408     infoPtr->fLocation = TBTS_TOP;
1409     infoPtr->uNumTics  = 0;    /* start and end tic are not included in count*/
1410     infoPtr->uTicFreq  = 1;
1411     infoPtr->tics      = NULL;
1412     infoPtr->hwndNotify= lpcs->hwndParent;
1413
1414     TRACKBAR_InitializeThumb (infoPtr);
1415
1416     /* Create tooltip control */
1417     if (infoPtr->dwStyle & TBS_TOOLTIPS) {
1418
1419         infoPtr->hwndToolTip =
1420             CreateWindowExW (0, TOOLTIPS_CLASSW, NULL, WS_POPUP,
1421                              CW_USEDEFAULT, CW_USEDEFAULT,
1422                              CW_USEDEFAULT, CW_USEDEFAULT,
1423                              hwnd, 0, 0, 0);
1424
1425         if (infoPtr->hwndToolTip) {
1426             TTTOOLINFOW ti;
1427             ZeroMemory (&ti, sizeof(ti));
1428             ti.cbSize   = sizeof(ti);
1429             ti.uFlags   = TTF_IDISHWND | TTF_TRACK | TTF_ABSOLUTE;
1430             ti.hwnd     = hwnd;
1431
1432             SendMessageW (infoPtr->hwndToolTip, TTM_ADDTOOLW, 0, (LPARAM)&ti);
1433          }
1434     }
1435
1436     OpenThemeData (hwnd, themeClass);
1437
1438     return 0;
1439 }
1440
1441
1442 static LRESULT
1443 TRACKBAR_Destroy (TRACKBAR_INFO *infoPtr)
1444 {
1445     /* delete tooltip control */
1446     if (infoPtr->hwndToolTip)
1447         DestroyWindow (infoPtr->hwndToolTip);
1448
1449     Free (infoPtr->tics);
1450     infoPtr->tics = NULL;
1451
1452     SetWindowLongPtrW (infoPtr->hwndSelf, 0, 0);
1453     CloseThemeData (GetWindowTheme (infoPtr->hwndSelf));
1454     Free (infoPtr);
1455
1456     return 0;
1457 }
1458
1459
1460 static LRESULT
1461 TRACKBAR_KillFocus (TRACKBAR_INFO *infoPtr)
1462 {
1463     TRACE("\n");
1464     infoPtr->bFocussed = FALSE;
1465     TRACKBAR_InvalidateAll(infoPtr);
1466
1467     return 0;
1468 }
1469
1470 static LRESULT
1471 TRACKBAR_LButtonDown (TRACKBAR_INFO *infoPtr, INT x, INT y)
1472 {
1473     POINT clickPoint;
1474
1475     clickPoint.x = x;
1476     clickPoint.y = y;
1477
1478     SetFocus(infoPtr->hwndSelf);
1479
1480     if (PtInRect(&infoPtr->rcThumb, clickPoint)) {
1481         infoPtr->flags |= TB_DRAG_MODE;
1482         SetCapture (infoPtr->hwndSelf);
1483         TRACKBAR_UpdateToolTip (infoPtr);
1484         TRACKBAR_ActivateToolTip (infoPtr, TRUE);
1485         TRACKBAR_InvalidateThumb(infoPtr, infoPtr->lPos);
1486     } else {
1487         LONG dir = TRACKBAR_GetAutoPageDirection(infoPtr, clickPoint);
1488         if (dir == 0) return 0;
1489         infoPtr->flags |= (dir < 0) ? TB_AUTO_PAGE_LEFT : TB_AUTO_PAGE_RIGHT;
1490         TRACKBAR_AutoPage (infoPtr, clickPoint);
1491         SetCapture (infoPtr->hwndSelf);
1492         SetTimer(infoPtr->hwndSelf, TB_REFRESH_TIMER, TB_REFRESH_DELAY, 0);
1493     }
1494
1495     return 0;
1496 }
1497
1498
1499 static LRESULT
1500 TRACKBAR_LButtonUp (TRACKBAR_INFO *infoPtr)
1501 {
1502     if (infoPtr->flags & TB_DRAG_MODE) {
1503         notify_with_scroll (infoPtr, TB_THUMBPOSITION | (infoPtr->lPos<<16));
1504         notify_with_scroll (infoPtr, TB_ENDTRACK);
1505         infoPtr->flags &= ~TB_DRAG_MODE;
1506         ReleaseCapture ();
1507         notify(infoPtr, NM_RELEASEDCAPTURE);
1508         TRACKBAR_ActivateToolTip(infoPtr, FALSE);
1509         TRACKBAR_InvalidateThumb(infoPtr, infoPtr->lPos);
1510     }
1511     if (infoPtr->flags & TB_AUTO_PAGE) {
1512         KillTimer (infoPtr->hwndSelf, TB_REFRESH_TIMER);
1513         infoPtr->flags &= ~TB_AUTO_PAGE;
1514         notify_with_scroll (infoPtr, TB_ENDTRACK);
1515         ReleaseCapture ();
1516         notify(infoPtr, NM_RELEASEDCAPTURE);
1517     }
1518
1519     return 0;
1520 }
1521
1522
1523 static LRESULT
1524 TRACKBAR_CaptureChanged (const TRACKBAR_INFO *infoPtr)
1525 {
1526     notify_with_scroll (infoPtr, TB_ENDTRACK);
1527     return 0;
1528 }
1529
1530
1531 static LRESULT
1532 TRACKBAR_Paint (TRACKBAR_INFO *infoPtr, HDC hdc)
1533 {
1534     if (hdc) {
1535         TRACKBAR_Refresh(infoPtr, hdc);
1536     } else {
1537         PAINTSTRUCT ps;
1538         hdc = BeginPaint (infoPtr->hwndSelf, &ps);
1539         TRACKBAR_Refresh (infoPtr, hdc);
1540         EndPaint (infoPtr->hwndSelf, &ps);
1541     }
1542
1543     return 0;
1544 }
1545
1546
1547 static LRESULT
1548 TRACKBAR_SetFocus (TRACKBAR_INFO *infoPtr)
1549 {
1550     TRACE("\n");
1551     infoPtr->bFocussed = TRUE;
1552     TRACKBAR_InvalidateAll(infoPtr);
1553
1554     return 0;
1555 }
1556
1557
1558 static LRESULT
1559 TRACKBAR_Size (TRACKBAR_INFO *infoPtr)
1560 {
1561     TRACKBAR_InitializeThumb (infoPtr);
1562     TRACKBAR_AlignBuddies (infoPtr);
1563
1564     return 0;
1565 }
1566
1567 static LRESULT
1568 TRACKBAR_StyleChanged (TRACKBAR_INFO *infoPtr, WPARAM wStyleType,
1569                        const STYLESTRUCT *lpss)
1570 {
1571     if (wStyleType != GWL_STYLE) return 0;
1572
1573     infoPtr->dwStyle = lpss->styleNew;
1574
1575     return 0;
1576 }
1577
1578 static LRESULT
1579 TRACKBAR_Timer (TRACKBAR_INFO *infoPtr)
1580 {
1581     if (infoPtr->flags & TB_AUTO_PAGE) {
1582         POINT pt;
1583         if (GetCursorPos(&pt))
1584             if (ScreenToClient(infoPtr->hwndSelf, &pt))
1585                 TRACKBAR_AutoPage(infoPtr, pt);
1586     }
1587     return 0;
1588 }
1589
1590
1591 /* update theme after a WM_THEMECHANGED message */
1592 static LRESULT theme_changed (const TRACKBAR_INFO* infoPtr)
1593 {
1594     HTHEME theme = GetWindowTheme (infoPtr->hwndSelf);
1595     CloseThemeData (theme);
1596     OpenThemeData (infoPtr->hwndSelf, themeClass);
1597     return 0;
1598 }
1599
1600
1601 static LRESULT
1602 TRACKBAR_MouseMove (TRACKBAR_INFO *infoPtr, INT x, INT y)
1603 {
1604     INT clickPlace = (infoPtr->dwStyle & TBS_VERT) ? y : x;
1605     LONG dragPos, oldPos = infoPtr->lPos;
1606
1607     TRACE("(x=%d. y=%d)\n", x, y);
1608
1609     if (infoPtr->flags & TB_AUTO_PAGE) {
1610         POINT pt;
1611         pt.x = x;
1612         pt.y = y;
1613         TRACKBAR_AutoPage (infoPtr, pt);
1614         return TRUE;
1615     }
1616
1617     if (!(infoPtr->flags & TB_DRAG_MODE))
1618     {
1619         if (GetWindowTheme (infoPtr->hwndSelf))
1620         {
1621             DWORD oldFlags = infoPtr->flags;
1622             POINT pt;
1623             pt.x = x;
1624             pt.y = y;
1625             if (PtInRect (&infoPtr->rcThumb, pt))
1626             {
1627                 TRACKMOUSEEVENT tme;
1628                 tme.cbSize = sizeof( tme );
1629                 tme.dwFlags = TME_LEAVE;
1630                 tme.hwndTrack = infoPtr->hwndSelf;
1631                 TrackMouseEvent( &tme );
1632                 infoPtr->flags |= TB_THUMB_HOT;
1633             }
1634             else
1635             {
1636                 TRACKMOUSEEVENT tme;
1637                 tme.cbSize = sizeof( tme );
1638                 tme.dwFlags = TME_CANCEL;
1639                 tme.hwndTrack = infoPtr->hwndSelf;
1640                 TrackMouseEvent( &tme );
1641                 infoPtr->flags &= ~TB_THUMB_HOT;
1642             }
1643             if (oldFlags != infoPtr->flags) InvalidateRect (infoPtr->hwndSelf, &infoPtr->rcThumb, FALSE);
1644         }
1645         return TRUE;
1646     }
1647
1648     dragPos = TRACKBAR_ConvertPlaceToPosition (infoPtr, clickPlace);
1649
1650     if (dragPos == oldPos) return TRUE;
1651
1652     infoPtr->lPos = dragPos;
1653
1654     infoPtr->flags |= TB_THUMBPOSCHANGED;
1655     notify_with_scroll (infoPtr, TB_THUMBTRACK | (infoPtr->lPos<<16));
1656
1657
1658     TRACKBAR_InvalidateThumbMove(infoPtr, oldPos, dragPos);
1659     UpdateWindow (infoPtr->hwndSelf);
1660
1661     return TRUE;
1662 }
1663
1664 static BOOL
1665 TRACKBAR_KeyDown (TRACKBAR_INFO *infoPtr, INT nVirtKey)
1666 {
1667     BOOL downIsLeft = infoPtr->dwStyle & TBS_DOWNISLEFT;
1668     BOOL vert = infoPtr->dwStyle & TBS_VERT;
1669     LONG pos = infoPtr->lPos;
1670
1671     TRACE("%x\n", nVirtKey);
1672
1673     switch (nVirtKey) {
1674     case VK_UP:
1675         if (!vert && downIsLeft) TRACKBAR_LineDown(infoPtr);
1676         else TRACKBAR_LineUp(infoPtr);
1677         break;
1678     case VK_LEFT:
1679         if (vert && downIsLeft) TRACKBAR_LineDown(infoPtr);
1680         else TRACKBAR_LineUp(infoPtr);
1681         break;
1682     case VK_DOWN:
1683         if (!vert && downIsLeft) TRACKBAR_LineUp(infoPtr);
1684         else TRACKBAR_LineDown(infoPtr);
1685         break;
1686     case VK_RIGHT:
1687         if (vert && downIsLeft) TRACKBAR_LineUp(infoPtr);
1688         else TRACKBAR_LineDown(infoPtr);
1689         break;
1690     case VK_NEXT:
1691         if (!vert && downIsLeft) TRACKBAR_PageUp(infoPtr);
1692         else TRACKBAR_PageDown(infoPtr);
1693         break;
1694     case VK_PRIOR:
1695         if (!vert && downIsLeft) TRACKBAR_PageDown(infoPtr);
1696         else TRACKBAR_PageUp(infoPtr);
1697         break;
1698     case VK_HOME:
1699         if (infoPtr->lPos == infoPtr->lRangeMin) return FALSE;
1700         infoPtr->lPos = infoPtr->lRangeMin;
1701         notify_with_scroll (infoPtr, TB_TOP);
1702         break;
1703     case VK_END:
1704         if (infoPtr->lPos == infoPtr->lRangeMax) return FALSE;
1705         infoPtr->lPos = infoPtr->lRangeMax;
1706         notify_with_scroll (infoPtr, TB_BOTTOM);
1707         break;
1708     }
1709
1710     if (pos != infoPtr->lPos) {
1711         infoPtr->flags |=TB_THUMBPOSCHANGED;
1712         TRACKBAR_InvalidateThumbMove (infoPtr, pos, infoPtr->lPos);
1713     }
1714
1715     return TRUE;
1716 }
1717
1718
1719 static inline BOOL
1720 TRACKBAR_KeyUp (const TRACKBAR_INFO *infoPtr, INT nVirtKey)
1721 {
1722     switch (nVirtKey) {
1723     case VK_LEFT:
1724     case VK_UP:
1725     case VK_RIGHT:
1726     case VK_DOWN:
1727     case VK_NEXT:
1728     case VK_PRIOR:
1729     case VK_HOME:
1730     case VK_END:
1731         notify_with_scroll (infoPtr, TB_ENDTRACK);
1732     }
1733     return TRUE;
1734 }
1735
1736
1737 static LRESULT WINAPI
1738 TRACKBAR_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1739 {
1740     TRACKBAR_INFO *infoPtr = (TRACKBAR_INFO *)GetWindowLongPtrW (hwnd, 0);
1741
1742     TRACE("hwnd=%p msg=%x wparam=%lx lparam=%lx\n", hwnd, uMsg, wParam, lParam);
1743
1744     if (!infoPtr && (uMsg != WM_CREATE))
1745         return DefWindowProcW (hwnd, uMsg, wParam, lParam);
1746
1747     switch (uMsg)
1748     {
1749     case TBM_CLEARSEL:
1750         return TRACKBAR_ClearSel (infoPtr, (BOOL)wParam);
1751
1752     case TBM_CLEARTICS:
1753         return TRACKBAR_ClearTics (infoPtr, (BOOL)wParam);
1754
1755     case TBM_GETBUDDY:
1756         return (LRESULT)(wParam ? infoPtr->hwndBuddyLA : infoPtr->hwndBuddyRB);
1757
1758     case TBM_GETCHANNELRECT:
1759         return TRACKBAR_GetChannelRect (infoPtr, (LPRECT)lParam);
1760
1761     case TBM_GETLINESIZE:
1762         return infoPtr->lLineSize;
1763
1764     case TBM_GETNUMTICS:
1765         return TRACKBAR_GetNumTics (infoPtr);
1766
1767     case TBM_GETPAGESIZE:
1768         return infoPtr->lPageSize;
1769
1770     case TBM_GETPOS:
1771         return infoPtr->lPos;
1772
1773     case TBM_GETPTICS:
1774         return (LRESULT)infoPtr->tics;
1775
1776     case TBM_GETRANGEMAX:
1777         return infoPtr->lRangeMax;
1778
1779     case TBM_GETRANGEMIN:
1780         return infoPtr->lRangeMin;
1781
1782     case TBM_GETSELEND:
1783         return infoPtr->lSelMax;
1784
1785     case TBM_GETSELSTART:
1786         return infoPtr->lSelMin;
1787
1788     case TBM_GETTHUMBLENGTH:
1789         return infoPtr->uThumbLen;
1790
1791     case TBM_GETTHUMBRECT:
1792         return CopyRect((LPRECT)lParam, &infoPtr->rcThumb);
1793
1794     case TBM_GETTIC:
1795         return TRACKBAR_GetTic (infoPtr, (INT)wParam);
1796
1797     case TBM_GETTICPOS:
1798         return TRACKBAR_GetTicPos (infoPtr, (INT)wParam);
1799
1800     case TBM_GETTOOLTIPS:
1801         return (LRESULT)infoPtr->hwndToolTip;
1802
1803     case TBM_GETUNICODEFORMAT:
1804         return infoPtr->bUnicode;
1805
1806     case TBM_SETBUDDY:
1807         return (LRESULT) TRACKBAR_SetBuddy(infoPtr, (BOOL)wParam, (HWND)lParam);
1808
1809     case TBM_SETLINESIZE:
1810         return TRACKBAR_SetLineSize (infoPtr, (LONG)lParam);
1811
1812     case TBM_SETPAGESIZE:
1813         return TRACKBAR_SetPageSize (infoPtr, (LONG)lParam);
1814
1815     case TBM_SETPOS:
1816         return TRACKBAR_SetPos (infoPtr, (BOOL)wParam, (LONG)lParam);
1817
1818     case TBM_SETRANGE:
1819         return TRACKBAR_SetRange (infoPtr, (BOOL)wParam, (LONG)lParam);
1820
1821     case TBM_SETRANGEMAX:
1822         return TRACKBAR_SetRangeMax (infoPtr, (BOOL)wParam, (LONG)lParam);
1823
1824     case TBM_SETRANGEMIN:
1825         return TRACKBAR_SetRangeMin (infoPtr, (BOOL)wParam, (LONG)lParam);
1826
1827     case TBM_SETSEL:
1828         return TRACKBAR_SetSel (infoPtr, (BOOL)wParam, (LONG)lParam);
1829
1830     case TBM_SETSELEND:
1831         return TRACKBAR_SetSelEnd (infoPtr, (BOOL)wParam, (LONG)lParam);
1832
1833     case TBM_SETSELSTART:
1834         return TRACKBAR_SetSelStart (infoPtr, (BOOL)wParam, (LONG)lParam);
1835
1836     case TBM_SETTHUMBLENGTH:
1837         return TRACKBAR_SetThumbLength (infoPtr, (UINT)wParam);
1838
1839     case TBM_SETTIC:
1840         return TRACKBAR_SetTic (infoPtr, (LONG)lParam);
1841
1842     case TBM_SETTICFREQ:
1843         return TRACKBAR_SetTicFreq (infoPtr, (WORD)wParam);
1844
1845     case TBM_SETTIPSIDE:
1846         return TRACKBAR_SetTipSide (infoPtr, (INT)wParam);
1847
1848     case TBM_SETTOOLTIPS:
1849         return TRACKBAR_SetToolTips (infoPtr, (HWND)wParam);
1850
1851     case TBM_SETUNICODEFORMAT:
1852         return TRACKBAR_SetUnicodeFormat (infoPtr, (BOOL)wParam);
1853
1854
1855     case WM_CAPTURECHANGED:
1856         return TRACKBAR_CaptureChanged (infoPtr);
1857
1858     case WM_CREATE:
1859         return TRACKBAR_Create (hwnd, (LPCREATESTRUCTW)lParam);
1860
1861     case WM_DESTROY:
1862         return TRACKBAR_Destroy (infoPtr);
1863
1864 /*      case WM_ENABLE: */
1865
1866     case WM_ERASEBKGND:
1867         return 0;
1868
1869     case WM_GETDLGCODE:
1870         return DLGC_WANTARROWS;
1871
1872     case WM_KEYDOWN:
1873         return TRACKBAR_KeyDown (infoPtr, (INT)wParam);
1874
1875     case WM_KEYUP:
1876         return TRACKBAR_KeyUp (infoPtr, (INT)wParam);
1877
1878     case WM_KILLFOCUS:
1879         return TRACKBAR_KillFocus (infoPtr);
1880
1881     case WM_LBUTTONDOWN:
1882         return TRACKBAR_LButtonDown (infoPtr, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam));
1883
1884     case WM_LBUTTONUP:
1885         return TRACKBAR_LButtonUp (infoPtr);
1886
1887     case WM_MOUSELEAVE:
1888         infoPtr->flags &= ~TB_THUMB_HOT;
1889         InvalidateRect (infoPtr->hwndSelf, &infoPtr->rcThumb, FALSE);
1890         return 0;
1891
1892     case WM_MOUSEMOVE:
1893         return TRACKBAR_MouseMove (infoPtr, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam));
1894
1895     case WM_PRINTCLIENT:
1896     case WM_PAINT:
1897         return TRACKBAR_Paint (infoPtr, (HDC)wParam);
1898
1899     case WM_SETFOCUS:
1900         return TRACKBAR_SetFocus (infoPtr);
1901
1902     case WM_SIZE:
1903         return TRACKBAR_Size (infoPtr);
1904
1905     case WM_STYLECHANGED:
1906         return TRACKBAR_StyleChanged (infoPtr, wParam, (LPSTYLESTRUCT)lParam);
1907
1908     case WM_THEMECHANGED:
1909         return theme_changed (infoPtr);
1910
1911     case WM_TIMER:
1912         return TRACKBAR_Timer (infoPtr);
1913
1914     case WM_WININICHANGE:
1915         return TRACKBAR_InitializeThumb (infoPtr);
1916
1917     default:
1918         if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
1919             ERR("unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);
1920         return DefWindowProcW (hwnd, uMsg, wParam, lParam);
1921     }
1922 }
1923
1924
1925 void TRACKBAR_Register (void)
1926 {
1927     WNDCLASSW wndClass;
1928
1929     ZeroMemory (&wndClass, sizeof(WNDCLASSW));
1930     wndClass.style         = CS_GLOBALCLASS;
1931     wndClass.lpfnWndProc   = TRACKBAR_WindowProc;
1932     wndClass.cbClsExtra    = 0;
1933     wndClass.cbWndExtra    = sizeof(TRACKBAR_INFO *);
1934     wndClass.hCursor       = LoadCursorW (0, (LPWSTR)IDC_ARROW);
1935     wndClass.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1);
1936     wndClass.lpszClassName = TRACKBAR_CLASSW;
1937
1938     RegisterClassW (&wndClass);
1939 }
1940
1941
1942 void TRACKBAR_Unregister (void)
1943 {
1944     UnregisterClassW (TRACKBAR_CLASSW, NULL);
1945 }