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