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
  23 #include <stdarg.h>
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <math.h>
  28
  29 #include "windef.h"
  30 #include "winbase.h"
  31 #include "wingdi.h"
  32 #include "winuser.h"
  33 #include "winnls.h"
  34 #include "commctrl.h"
  35 #include "uxtheme.h"
  36 #include "vssym32.h"
  37 #include "wine/debug.h"
  38
  39 #include "comctl32.h"
  40
  41 WINE_DEFAULT_DEBUG_CHANNEL(trackbar);
  42
  43 typedef struct
  44 {
  45     HWND hwndSelf;
  46     DWORD dwStyle;
  47     LONG lRangeMin;
  48     LONG lRangeMax;
  49     LONG lLineSize;
  50     LONG lPageSize;
  51     LONG lSelMin;
  52     LONG lSelMax;
  53     LONG lPos;
  54     UINT uThumbLen;
  55     UINT uNumTics;
  56     UINT uTicFreq;
  57     HWND hwndNotify;
  58     HWND hwndToolTip;
  59     HWND hwndBuddyLA;
  60     HWND hwndBuddyRB;
  61     INT  fLocation;
  62     INT  flags;
  63     BOOL bUnicode;
  64     BOOL bFocussed;
  65     RECT rcChannel;
  66     RECT rcSelection;
  67     RECT rcThumb;
  68     LPLONG tics;
  69 } TRACKBAR_INFO;
  70
  71 #define TB_REFRESH_TIMER        1
  72 #define TB_REFRESH_DELAY        500
  73
  74 #define TOOLTIP_OFFSET          2     /* distance from ctrl edge to tooltip */
  75
  76 #define TB_DEFAULTPAGESIZE      20
  77
  78 /* Used by TRACKBAR_Refresh to find out which parts of the control
  79    need to be recalculated */
  80
  81 #define TB_THUMBPOSCHANGED      1
  82 #define TB_THUMBSIZECHANGED     2
  83 #define TB_THUMBCHANGED         (TB_THUMBPOSCHANGED | TB_THUMBSIZECHANGED)
  84 #define TB_SELECTIONCHANGED     4
  85 #define TB_DRAG_MODE            8     /* we're dragging the slider */
  86 #define TB_AUTO_PAGE_LEFT       16
  87 #define TB_AUTO_PAGE_RIGHT      32
  88 #define TB_AUTO_PAGE            (TB_AUTO_PAGE_LEFT | TB_AUTO_PAGE_RIGHT)
  89 #define TB_THUMB_HOT            64    /* mouse hovers above thumb */
  90
  91 /* helper defines for TRACKBAR_DrawTic */
  92 #define TIC_EDGE                0x20
  93 #define TIC_SELECTIONMARKMAX    0x80
  94 #define TIC_SELECTIONMARKMIN    0x100
  95 #define TIC_SELECTIONMARK       (TIC_SELECTIONMARKMAX | TIC_SELECTIONMARKMIN)
  96
  97 static const WCHAR themeClass[] = { 'T','r','a','c','k','b','a','r',0 };
  98
  99 static inline int
 100 notify_customdraw (const TRACKBAR_INFO *infoPtr, NMCUSTOMDRAW *pnmcd, int stage)
 101 {
 102     pnmcd->dwDrawStage = stage;
 103     return SendMessageW (infoPtr->hwndNotify, WM_NOTIFY,
 104                          pnmcd->hdr.idFrom, (LPARAM)pnmcd);
 105 }
 106
 107 static LRESULT notify_hdr (const TRACKBAR_INFO *infoPtr, INT code, LPNMHDR pnmh)
 108 {
 109     LRESULT result;
 110
 111     TRACE("(code=%d)\n", code);
 112
 113     pnmh->hwndFrom = infoPtr->hwndSelf;
 114     pnmh->idFrom = GetWindowLongPtrW(infoPtr->hwndSelf, GWLP_ID);
 115     pnmh->code = code;
 116     result = SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, pnmh->idFrom, (LPARAM)pnmh);
 117
 118     TRACE("  <= %ld\n", result);
 119
 120     return result;
 121 }
 122
 123 static inline int notify (const TRACKBAR_INFO *infoPtr, INT code)
 124 {
 125     NMHDR nmh;
 126     return notify_hdr(infoPtr, code, &nmh);
 127 }
 128
 129 static void notify_with_scroll (const TRACKBAR_INFO *infoPtr, UINT code)
 130 {
 131     UINT scroll = infoPtr->dwStyle & TBS_VERT ? WM_VSCROLL : WM_HSCROLL;
 132
 133     TRACE("%x\n", code);
 134
 135     SendMessageW (infoPtr->hwndNotify, scroll, code, (LPARAM)infoPtr->hwndSelf);
 136 }
 137
 138 static void TRACKBAR_RecalculateTics (TRACKBAR_INFO *infoPtr)
 139 {
 140     int tic;
 141     unsigned nrTics, i;
 142
 143     if (infoPtr->uTicFreq && infoPtr->lRangeMax >= infoPtr->lRangeMin) {
 144         nrTics=(infoPtr->lRangeMax - infoPtr->lRangeMin)/infoPtr->uTicFreq;
 145         /* don't add extra tic if there's no remainder */
 146         if (nrTics && ((infoPtr->lRangeMax - infoPtr->lRangeMin) % infoPtr->uTicFreq == 0))
 147           nrTics--;
 148     }
 149     else {
 150         Free (infoPtr->tics);
 151         infoPtr->tics = NULL;
 152         infoPtr->uNumTics = 0;
 153         return;
 154     }
 155
 156     if (nrTics != infoPtr->uNumTics) {
 157         infoPtr->tics=ReAlloc (infoPtr->tics,
 158                                         (nrTics+1)*sizeof (DWORD));
 159         if (!infoPtr->tics) {
 160             infoPtr->uNumTics = 0;
 161             notify(infoPtr, NM_OUTOFMEMORY);
 162             return;
 163         }
 164         infoPtr->uNumTics = nrTics;
 165     }
 166
 167     tic = infoPtr->lRangeMin + infoPtr->uTicFreq;
 168     for (i = 0; i < nrTics; i++, tic += infoPtr->uTicFreq)
 169         infoPtr->tics[i] = tic;
 170 }
 171
 172 /* converts from physical (mouse) position to logical position
 173    (in range of trackbar) */
 174
 175 static inline LONG
 176 TRACKBAR_ConvertPlaceToPosition (const TRACKBAR_INFO *infoPtr, int place)
 177 {
 178     double range, width, pos, offsetthumb;
 179
 180     range = infoPtr->lRangeMax - infoPtr->lRangeMin;
 181     if (infoPtr->dwStyle & TBS_VERT) {
 182         offsetthumb = (infoPtr->rcThumb.bottom - infoPtr->rcThumb.top)/2;
 183         width = infoPtr->rcChannel.bottom - infoPtr->rcChannel.top - (offsetthumb * 2) - 1;
 184         pos = (range*(place - infoPtr->rcChannel.top - offsetthumb)) / width;
 185     } else {
 186         offsetthumb = (infoPtr->rcThumb.right - infoPtr->rcThumb.left)/2;
 187         width = infoPtr->rcChannel.right - infoPtr->rcChannel.left - (offsetthumb * 2) - 1;
 188         pos = (range*(place - infoPtr->rcChannel.left - offsetthumb)) / width;
 189     }
 190     pos += infoPtr->lRangeMin;
 191     if (pos > infoPtr->lRangeMax)
 192         pos = infoPtr->lRangeMax;
 193     else if (pos < infoPtr->lRangeMin)
 194         pos = infoPtr->lRangeMin;
 195
 196     TRACE("%.2f\n", pos);
 197     return (LONG)floor(pos + 0.5);
 198 }
 199
 200
 201 /* return: 0> prev, 0 none, >0 next */
 202 static LONG
 203 TRACKBAR_GetAutoPageDirection (const TRACKBAR_INFO *infoPtr, POINT clickPoint)
 204 {
 205     RECT pageRect;
 206
 207     if (infoPtr->dwStyle & TBS_VERT) {
 208         pageRect.top = infoPtr->rcChannel.top;
 209         pageRect.bottom = infoPtr->rcChannel.bottom;
 210         pageRect.left = infoPtr->rcThumb.left;
 211         pageRect.right = infoPtr->rcThumb.right;
 212     } else {
 213         pageRect.top = infoPtr->rcThumb.top;
 214         pageRect.bottom = infoPtr->rcThumb.bottom;
 215         pageRect.left = infoPtr->rcChannel.left;
 216         pageRect.right = infoPtr->rcChannel.right;
 217     }
 218
 219
 220     if (PtInRect(&pageRect, clickPoint))
 221     {
 222         int clickPlace = (infoPtr->dwStyle & TBS_VERT) ? clickPoint.y : clickPoint.x;
 223
 224         LONG clickPos = TRACKBAR_ConvertPlaceToPosition(infoPtr, clickPlace);
 225
 226         return clickPos - infoPtr->lPos;
 227     }
 228
 229     return 0;
 230 }
 231
 232 static inline void
 233 TRACKBAR_PageDown (TRACKBAR_INFO *infoPtr)
 234 {
 235     if (infoPtr->lPos == infoPtr->lRangeMax) return;
 236
 237     infoPtr->lPos += infoPtr->lPageSize;
 238     if (infoPtr->lPos > infoPtr->lRangeMax)
 239         infoPtr->lPos = infoPtr->lRangeMax;
 240     notify_with_scroll (infoPtr, TB_PAGEDOWN);
 241 }
 242
 243
 244 static inline void
 245 TRACKBAR_PageUp (TRACKBAR_INFO *infoPtr)
 246 {
 247     if (infoPtr->lPos == infoPtr->lRangeMin) return;
 248
 249     infoPtr->lPos -= infoPtr->lPageSize;
 250     if (infoPtr->lPos < infoPtr->lRangeMin)
 251         infoPtr->lPos = infoPtr->lRangeMin;
 252     notify_with_scroll (infoPtr, TB_PAGEUP);
 253 }
 254
 255 static inline void TRACKBAR_LineUp(TRACKBAR_INFO *infoPtr)
 256 {
 257     if (infoPtr->lPos == infoPtr->lRangeMin) return;
 258     infoPtr->lPos -= infoPtr->lLineSize;
 259     if (infoPtr->lPos < infoPtr->lRangeMin)
 260         infoPtr->lPos = infoPtr->lRangeMin;
 261     notify_with_scroll (infoPtr, TB_LINEUP);
 262 }
 263
 264 static inline void TRACKBAR_LineDown(TRACKBAR_INFO *infoPtr)
 265 {
 266     if (infoPtr->lPos == infoPtr->lRangeMax) return;
 267     infoPtr->lPos += infoPtr->lLineSize;
 268     if (infoPtr->lPos > infoPtr->lRangeMax)
 269         infoPtr->lPos = infoPtr->lRangeMax;
 270     notify_with_scroll (infoPtr, TB_LINEDOWN);
 271 }
 272
 273 static void
 274 TRACKBAR_CalcChannel (TRACKBAR_INFO *infoPtr)
 275 {
 276     INT cyChannel, offsetthumb, offsetedge;
 277     RECT lpRect, *channel = & infoPtr->rcChannel;
 278
 279     GetClientRect (infoPtr->hwndSelf, &lpRect);
 280
 281     offsetthumb = infoPtr->uThumbLen / 4;
 282     offsetedge  = offsetthumb + 3;
 283     cyChannel   = (infoPtr->dwStyle & TBS_ENABLESELRANGE) ? offsetthumb*3 : 4;
 284     if (infoPtr->dwStyle & TBS_VERT) {
 285         channel->top    = lpRect.top + offsetedge;
 286         channel->bottom = lpRect.bottom - offsetedge;
 287         if (infoPtr->dwStyle & TBS_ENABLESELRANGE)
 288             channel->left = lpRect.left + ((infoPtr->uThumbLen - cyChannel + 2) / 2);
 289         else
 290             channel->left = lpRect.left + (infoPtr->uThumbLen / 2) - 1;
 291         if (infoPtr->dwStyle & TBS_BOTH) {
 292             if (infoPtr->dwStyle & TBS_NOTICKS)
 293                 channel->left += 1;
 294             else
 295                 channel->left += 9;
 296         }
 297         else if (infoPtr->dwStyle & TBS_TOP) {
 298             if (infoPtr->dwStyle & TBS_NOTICKS)
 299                 channel->left += 2;
 300             else
 301                 channel->left += 10;
 302         }
 303         channel->right = channel->left + cyChannel;
 304     } else {
 305         channel->left = lpRect.left + offsetedge;
 306         channel->right = lpRect.right - offsetedge;
 307         if (infoPtr->dwStyle & TBS_ENABLESELRANGE)
 308             channel->top = lpRect.top + ((infoPtr->uThumbLen - cyChannel + 2) / 2);
 309         else
 310             channel->top = lpRect.top + (infoPtr->uThumbLen / 2) - 1;
 311         if (infoPtr->dwStyle & TBS_BOTH) {
 312             if (infoPtr->dwStyle & TBS_NOTICKS)
 313                 channel->top += 1;
 314             else
 315                 channel->top += 9;
 316         }
 317         else if (infoPtr->dwStyle & TBS_TOP) {
 318             if (infoPtr->dwStyle & TBS_NOTICKS)
 319                 channel->top += 2;
 320             else
 321                 channel->top += 10;
 322         }
 323         channel->bottom   = channel->top + cyChannel;
 324     }
 325 }
 326
 327 static void
 328 TRACKBAR_CalcThumb (const TRACKBAR_INFO *infoPtr, LONG lPos, RECT *thumb)
 329 {
 330     int range, width, height, thumbwidth;
 331     RECT lpRect;
 332
 333     range = infoPtr->lRangeMax - infoPtr->lRangeMin;
 334     thumbwidth = (infoPtr->uThumbLen / 2) | 1;
 335
 336     if (!range) range = 1;
 337
 338     GetClientRect(infoPtr->hwndSelf, &lpRect);
 339     if (infoPtr->dwStyle & TBS_VERT)
 340     {
 341         height = infoPtr->rcChannel.bottom - infoPtr->rcChannel.top - thumbwidth;
 342
 343         if ((infoPtr->dwStyle & (TBS_BOTH | TBS_LEFT)) && !(infoPtr->dwStyle & TBS_NOTICKS))
 344             thumb->left = 10;
 345         else
 346             thumb->left = 2;
 347         thumb->right = thumb->left + infoPtr->uThumbLen;
 348         thumb->top = infoPtr->rcChannel.top +
 349                      (height*(lPos - infoPtr->lRangeMin))/range;
 350         thumb->bottom = thumb->top + thumbwidth;
 351     }
 352     else
 353     {
 354         width = infoPtr->rcChannel.right - infoPtr->rcChannel.left - thumbwidth;
 355
 356         thumb->left = infoPtr->rcChannel.left +
 357                       (width*(lPos - infoPtr->lRangeMin))/range;
 358         thumb->right = thumb->left + thumbwidth;
 359         if ((infoPtr->dwStyle & (TBS_BOTH | TBS_TOP)) && !(infoPtr->dwStyle & TBS_NOTICKS))
 360             thumb->top = 10;
 361         else
 362             thumb->top = 2;
 363         thumb->bottom = thumb->top + infoPtr->uThumbLen;
 364     }
 365 }
 366
 367 static inline void
 368 TRACKBAR_UpdateThumb (TRACKBAR_INFO *infoPtr)
 369 {
 370     TRACKBAR_CalcThumb(infoPtr, infoPtr->lPos, &infoPtr->rcThumb);
 371 }
 372
 373 static inline void
 374 TRACKBAR_InvalidateAll (const TRACKBAR_INFO *infoPtr)
 375 {
 376     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
 377 }
 378
 379 static void
 380 TRACKBAR_InvalidateThumb (const TRACKBAR_INFO *infoPtr, LONG thumbPos)
 381 {
 382     RECT rcThumb;
 383
 384     TRACKBAR_CalcThumb(infoPtr, thumbPos, &rcThumb);
 385     InflateRect(&rcThumb, 1, 1);
 386     InvalidateRect(infoPtr->hwndSelf, &rcThumb, FALSE);
 387 }
 388
 389 static inline void
 390 TRACKBAR_InvalidateThumbMove (const TRACKBAR_INFO *infoPtr, LONG oldPos, LONG newPos)
 391 {
 392     TRACKBAR_InvalidateThumb (infoPtr, oldPos);
 393     if (newPos != oldPos)
 394         TRACKBAR_InvalidateThumb (infoPtr, newPos);
 395 }
 396
 397 static inline BOOL
 398 TRACKBAR_HasSelection (const TRACKBAR_INFO *infoPtr)
 399 {
 400     return infoPtr->lSelMin != infoPtr->lSelMax;
 401 }
 402
 403 static void
 404 TRACKBAR_CalcSelection (TRACKBAR_INFO *infoPtr)
 405 {
 406     RECT *selection = &infoPtr->rcSelection;
 407     int range = infoPtr->lRangeMax - infoPtr->lRangeMin;
 408     int offsetthumb, height, width;
 409
 410     if (range <= 0) {
 411         SetRectEmpty (selection);
 412     } else {
 413         if (infoPtr->dwStyle & TBS_VERT) {
 414             offsetthumb = (infoPtr->rcThumb.bottom - infoPtr->rcThumb.top)/2;
 415             height = infoPtr->rcChannel.bottom - infoPtr->rcChannel.top - offsetthumb*2;
 416             selection->top    = infoPtr->rcChannel.top + offsetthumb +
 417                 (height*infoPtr->lSelMin)/range;
 418             selection->bottom = infoPtr->rcChannel.top + offsetthumb +
 419                 (height*infoPtr->lSelMax)/range;
 420             selection->left   = infoPtr->rcChannel.left + 3;
 421             selection->right  = infoPtr->rcChannel.right - 3;
 422         } else {
 423             offsetthumb = (infoPtr->rcThumb.right - infoPtr->rcThumb.left)/2;
 424             width = infoPtr->rcChannel.right - infoPtr->rcChannel.left - offsetthumb*2;
 425             selection->left   = infoPtr->rcChannel.left + offsetthumb +
 426                 (width*infoPtr->lSelMin)/range;
 427             selection->right  = infoPtr->rcChannel.left + offsetthumb +
 428                 (width*infoPtr->lSelMax)/range;
 429             selection->top    = infoPtr->rcChannel.top + 3;
 430             selection->bottom = infoPtr->rcChannel.bottom - 3;
 431         }
 432     }
 433
 434     TRACE("selection[%s]\n", wine_dbgstr_rect(selection));
 435 }
 436
 437 static BOOL
 438 TRACKBAR_AutoPage (TRACKBAR_INFO *infoPtr, POINT clickPoint)
 439 {
 440     LONG dir = TRACKBAR_GetAutoPageDirection(infoPtr, clickPoint);
 441     LONG prevPos = infoPtr->lPos;
 442
 443     TRACE("clickPoint=%s, dir=%d\n", wine_dbgstr_point(&clickPoint), dir);
 444
 445     if (dir > 0 && (infoPtr->flags & TB_AUTO_PAGE_RIGHT))
 446         TRACKBAR_PageDown(infoPtr);
 447     else if (dir < 0 && (infoPtr->flags & TB_AUTO_PAGE_LEFT))
 448         TRACKBAR_PageUp(infoPtr);
 449     else return FALSE;
 450
 451     TRACKBAR_UpdateThumb (infoPtr);
 452     TRACKBAR_InvalidateThumbMove (infoPtr, prevPos, infoPtr->lPos);
 453
 454     return TRUE;
 455 }
 456
 457 /* Trackbar drawing code. I like my spaghetti done milanese.  */
 458
 459 static void
 460 TRACKBAR_DrawChannel (const TRACKBAR_INFO *infoPtr, HDC hdc)
 461 {
 462     RECT rcChannel = infoPtr->rcChannel;
 463     HTHEME theme = GetWindowTheme (infoPtr->hwndSelf);
 464
 465     if (theme)
 466     {
 467         DrawThemeBackground (theme, hdc,
 468             (infoPtr->dwStyle & TBS_VERT) ?
 469                 TKP_TRACKVERT : TKP_TRACK, TKS_NORMAL, &rcChannel, 0);
 470     }
 471     else
 472     {
 473         DrawEdge (hdc, &rcChannel, EDGE_SUNKEN, BF_RECT | BF_ADJUST);
 474         if (infoPtr->dwStyle & TBS_ENABLESELRANGE) {             /* fill the channel */
 475             FillRect (hdc, &rcChannel, GetStockObject(WHITE_BRUSH));
 476             if (TRACKBAR_HasSelection(infoPtr))
 477                 FillRect (hdc, &infoPtr->rcSelection, GetSysColorBrush(COLOR_HIGHLIGHT));
 478         }
 479     }
 480 }
 481
 482 static void
 483 TRACKBAR_DrawOneTic (const TRACKBAR_INFO *infoPtr, HDC hdc, LONG ticPos, int flags)
 484 {
 485     int x, y, ox, oy, range, side, indent = 0, len = 3;
 486     int offsetthumb;
 487     RECT rcTics;
 488
 489     if (flags & TBS_VERT) {
 490         offsetthumb = (infoPtr->rcThumb.bottom - infoPtr->rcThumb.top)/2;
 491         SetRect(&rcTics, infoPtr->rcThumb.left - 2, infoPtr->rcChannel.top + offsetthumb,
 492                 infoPtr->rcThumb.right + 2, infoPtr->rcChannel.bottom - offsetthumb - 1);
 493     } else {
 494         offsetthumb = (infoPtr->rcThumb.right - infoPtr->rcThumb.left)/2;
 495         SetRect(&rcTics, infoPtr->rcChannel.left + offsetthumb, infoPtr->rcThumb.top - 2,
 496                 infoPtr->rcChannel.right - offsetthumb - 1, infoPtr->rcThumb.bottom + 2);
 497     }
 498
 499     if (flags & (TBS_TOP | TBS_LEFT)) {
 500         x = rcTics.left;
 501         y = rcTics.top;
 502         side = -1;
 503     } else {
 504         x = rcTics.right;
 505         y = rcTics.bottom;
 506         side = 1;
 507     }
 508
 509     range = infoPtr->lRangeMax - infoPtr->lRangeMin;
 510     if (range <= 0)
 511       range = 1; /* to avoid division by zero */
 512
 513     if (flags & TIC_SELECTIONMARK) {
 514         indent = (flags & TIC_SELECTIONMARKMIN) ? -1 : 1;
 515     } else if (flags & TIC_EDGE) {
 516         len++;
 517     }
 518
 519     if (flags & TBS_VERT) {
 520         int height = rcTics.bottom - rcTics.top;
 521         y = rcTics.top + (height*(ticPos - infoPtr->lRangeMin))/range;
 522     } else {
 523         int width = rcTics.right - rcTics.left;
 524         x = rcTics.left + (width*(ticPos - infoPtr->lRangeMin))/range;
 525     }
 526
 527     ox = x;
 528     oy = y;
 529     MoveToEx(hdc, x, y, 0);
 530     if (flags & TBS_VERT) x += len * side;
 531     else y += len * side;
 532     LineTo(hdc, x, y);
 533
 534     if (flags & TIC_SELECTIONMARK) {
 535         if (flags & TBS_VERT) {
 536             x -= side;
 537         } else {
 538             y -= side;
 539         }
 540         MoveToEx(hdc, x, y, 0);
 541         if (flags & TBS_VERT) {
 542             y += 2 * indent;
 543         } else {
 544             x += 2 * indent;
 545         }
 546
 547         LineTo(hdc, x, y);
 548         LineTo(hdc, ox, oy);
 549     }
 550 }
 551
 552
 553 static inline void
 554 TRACKBAR_DrawTic (const TRACKBAR_INFO *infoPtr, HDC hdc, LONG ticPos, int flags)
 555 {
 556     if ((flags & (TBS_LEFT | TBS_TOP)) || (flags & TBS_BOTH))
 557         TRACKBAR_DrawOneTic (infoPtr, hdc, ticPos, flags | TBS_LEFT);
 558
 559     if (!(flags & (TBS_LEFT | TBS_TOP)) || (flags & TBS_BOTH))
 560         TRACKBAR_DrawOneTic (infoPtr, hdc, ticPos, flags & ~TBS_LEFT);
 561 }
 562
 563 static void
 564 TRACKBAR_DrawTics (const TRACKBAR_INFO *infoPtr, HDC hdc)
 565 {
 566     unsigned int i;
 567     int ticFlags = infoPtr->dwStyle & 0x0f;
 568     LOGPEN ticPen = { PS_SOLID, {1, 0}, GetSysColor (COLOR_3DDKSHADOW) };
 569     HPEN hOldPen, hTicPen;
 570     HTHEME theme = GetWindowTheme (infoPtr->hwndSelf);
 571
 572     if (theme)
 573     {
 574         int part = (infoPtr->dwStyle & TBS_VERT) ? TKP_TICSVERT : TKP_TICS;
 575         GetThemeColor (theme, part, TSS_NORMAL, TMT_COLOR, &ticPen.lopnColor);
 576     }
 577     /* create the pen to draw the tics with */
 578     hTicPen = CreatePenIndirect(&ticPen);
 579     hOldPen = hTicPen ? SelectObject(hdc, hTicPen) : 0;
 580
 581     /* actually draw the tics */
 582     for (i=0; i<infoPtr->uNumTics; i++)
 583         TRACKBAR_DrawTic (infoPtr, hdc, infoPtr->tics[i], ticFlags);
 584
 585     TRACKBAR_DrawTic (infoPtr, hdc, infoPtr->lRangeMin, ticFlags | TIC_EDGE);
 586     TRACKBAR_DrawTic (infoPtr, hdc, infoPtr->lRangeMax, ticFlags | TIC_EDGE);
 587
 588     if ((infoPtr->dwStyle & TBS_ENABLESELRANGE) && TRACKBAR_HasSelection(infoPtr)) {
 589         TRACKBAR_DrawTic (infoPtr, hdc, infoPtr->lSelMin,
 590                           ticFlags | TIC_SELECTIONMARKMIN);
 591         TRACKBAR_DrawTic (infoPtr, hdc, infoPtr->lSelMax,
 592                           ticFlags | TIC_SELECTIONMARKMAX);
 593     }
 594
 595     /* clean up the pen, if we created one */
 596     if (hTicPen) {
 597         SelectObject(hdc, hOldPen);
 598         DeleteObject(hTicPen);
 599     }
 600 }
 601
 602 static int
 603 TRACKBAR_FillThumb (const TRACKBAR_INFO *infoPtr, HDC hdc, HBRUSH hbrush)
 604 {
 605     const RECT *thumb = &infoPtr->rcThumb;
 606     POINT points[6];
 607     int PointDepth;
 608     HBRUSH oldbr;
 609
 610     if (infoPtr->dwStyle & TBS_BOTH)
 611     {
 612         FillRect(hdc, thumb, hbrush);
 613         return 0;
 614     }
 615
 616     if (infoPtr->dwStyle & TBS_VERT)
 617     {
 618         PointDepth = (thumb->bottom - thumb->top) / 2;
 619         if (infoPtr->dwStyle & TBS_LEFT)
 620         {
 621             points[0].x = thumb->right-1;
 622             points[0].y = thumb->top;
 623             points[1].x = thumb->right-1;
 624             points[1].y = thumb->bottom-1;
 625             points[2].x = thumb->left + PointDepth;
 626             points[2].y = thumb->bottom-1;
 627             points[3].x = thumb->left;
 628             points[3].y = thumb->top + PointDepth;
 629             points[4].x = thumb->left + PointDepth;
 630             points[4].y = thumb->top;
 631             points[5].x = points[0].x;
 632             points[5].y = points[0].y;
 633         }
 634         else
 635         {
 636             points[0].x = thumb->right;
 637             points[0].y = thumb->top + PointDepth;
 638             points[1].x = thumb->right - PointDepth;
 639             points[1].y = thumb->bottom-1;
 640             points[2].x = thumb->left;
 641             points[2].y = thumb->bottom-1;
 642             points[3].x = thumb->left;
 643             points[3].y = thumb->top;
 644             points[4].x = thumb->right - PointDepth;
 645             points[4].y = thumb->top;
 646             points[5].x = points[0].x;
 647             points[5].y = points[0].y;
 648         }
 649     }
 650     else
 651     {
 652         PointDepth = (thumb->right - thumb->left) / 2;
 653         if (infoPtr->dwStyle & TBS_TOP)
 654         {
 655             points[0].x = thumb->left + PointDepth;
 656             points[0].y = thumb->top+1;
 657             points[1].x = thumb->right-1;
 658             points[1].y = thumb->top + PointDepth + 1;
 659             points[2].x = thumb->right-1;
 660             points[2].y = thumb->bottom-1;
 661             points[3].x = thumb->left;
 662             points[3].y = thumb->bottom-1;
 663             points[4].x = thumb->left;
 664             points[4].y = thumb->top + PointDepth + 1;
 665             points[5].x = points[0].x;
 666             points[5].y = points[0].y;
 667         }
 668         else
 669         {
 670             points[0].x = thumb->right-1;
 671             points[0].y = thumb->top;
 672             points[1].x = thumb->right-1;
 673             points[1].y = thumb->bottom - PointDepth - 1;
 674             points[2].x = thumb->left + PointDepth;
 675             points[2].y = thumb->bottom-1;
 676             points[3].x = thumb->left;
 677             points[3].y = thumb->bottom - PointDepth - 1;
 678             points[4].x = thumb->left;
 679             points[4].y = thumb->top;
 680             points[5].x = points[0].x;
 681             points[5].y = points[0].y;
 682         }
 683     }
 684
 685     oldbr = SelectObject(hdc, hbrush);
 686     SetPolyFillMode(hdc, WINDING);
 687     Polygon(hdc, points, ARRAY_SIZE(points));
 688     SelectObject(hdc, oldbr);
 689
 690     return PointDepth;
 691 }
 692
 693 static void
 694 TRACKBAR_DrawThumb (TRACKBAR_INFO *infoPtr, HDC hdc)
 695 {
 696     HTHEME theme = GetWindowTheme (infoPtr->hwndSelf);
 697     int PointDepth;
 698     HBRUSH brush;
 699
 700     if (theme)
 701     {
 702         int partId;
 703         int stateId;
 704         if (infoPtr->dwStyle & TBS_BOTH)
 705             partId = (infoPtr->dwStyle & TBS_VERT) ? TKP_THUMBVERT : TKP_THUMB;
 706         else if (infoPtr->dwStyle & TBS_LEFT)
 707             partId = (infoPtr->dwStyle & TBS_VERT) ? TKP_THUMBLEFT : TKP_THUMBTOP;
 708         else
 709             partId = (infoPtr->dwStyle & TBS_VERT) ? TKP_THUMBRIGHT : TKP_THUMBBOTTOM;
 710
 711         if (infoPtr->dwStyle & WS_DISABLED)
 712             stateId = TUS_DISABLED;
 713         else if (infoPtr->flags & TB_DRAG_MODE)
 714             stateId = TUS_PRESSED;
 715         else if (infoPtr->flags & TB_THUMB_HOT)
 716             stateId = TUS_HOT;
 717         else
 718             stateId = TUS_NORMAL;
 719
 720         DrawThemeBackground (theme, hdc, partId, stateId, &infoPtr->rcThumb, NULL);
 721
 722         return;
 723     }
 724
 725     if (infoPtr->dwStyle & WS_DISABLED || infoPtr->flags & TB_DRAG_MODE)
 726     {
 727         if (comctl32_color.clr3dHilight == comctl32_color.clrWindow)
 728             brush = COMCTL32_hPattern55AABrush;
 729         else
 730             brush = GetSysColorBrush(COLOR_SCROLLBAR);
 731
 732         SetTextColor(hdc, comctl32_color.clr3dFace);
 733         SetBkColor(hdc, comctl32_color.clr3dHilight);
 734     }
 735     else
 736         brush = GetSysColorBrush(COLOR_BTNFACE);
 737
 738     PointDepth = TRACKBAR_FillThumb(infoPtr, hdc, brush);
 739
 740     if (infoPtr->dwStyle & TBS_BOTH)
 741     {
 742        DrawEdge(hdc, &infoPtr->rcThumb, EDGE_RAISED, BF_RECT | BF_SOFT);
 743        return;
 744     }
 745     else
 746     {
 747         RECT thumb = infoPtr->rcThumb;
 748
 749         if (infoPtr->dwStyle & TBS_VERT)
 750         {
 751           if (infoPtr->dwStyle & TBS_LEFT)
 752           {
 753             /* rectangular part */
 754             thumb.left += PointDepth;
 755             DrawEdge(hdc, &thumb, EDGE_RAISED, BF_TOP | BF_RIGHT | BF_BOTTOM | BF_SOFT);
 756
 757             /* light edge */
 758             thumb.left -= PointDepth;
 759             thumb.right = thumb.left + PointDepth;
 760             thumb.bottom = infoPtr->rcThumb.top + PointDepth + 1;
 761             thumb.top = infoPtr->rcThumb.top;
 762             DrawEdge(hdc, &thumb, EDGE_RAISED, BF_DIAGONAL_ENDTOPRIGHT | BF_SOFT);
 763
 764             /* shadowed edge */
 765             thumb.top += PointDepth;
 766             thumb.bottom += PointDepth;
 767             DrawEdge(hdc, &thumb, EDGE_SUNKEN, BF_DIAGONAL_ENDTOPLEFT | BF_SOFT);
 768             return;
 769           }
 770           else
 771           {
 772             /* rectangular part */
 773             thumb.right -= PointDepth;
 774             DrawEdge(hdc, &thumb, EDGE_RAISED, BF_TOP | BF_LEFT | BF_BOTTOM | BF_SOFT);
 775
 776             /* light edge */
 777             thumb.left = thumb.right;
 778             thumb.right += PointDepth + 1;
 779             thumb.bottom = infoPtr->rcThumb.top + PointDepth + 1;
 780             thumb.top = infoPtr->rcThumb.top;
 781             DrawEdge(hdc, &thumb, EDGE_RAISED, BF_DIAGONAL_ENDTOPLEFT | BF_SOFT);
 782
 783             /* shadowed edge */
 784             thumb.top += PointDepth;
 785             thumb.bottom += PointDepth;
 786             DrawEdge(hdc, &thumb, EDGE_RAISED, BF_DIAGONAL_ENDBOTTOMLEFT | BF_SOFT);
 787           }
 788         }
 789         else
 790         {
 791           if (infoPtr->dwStyle & TBS_TOP)
 792           {
 793             /* rectangular part */
 794             thumb.top += PointDepth;
 795             DrawEdge(hdc, &thumb, EDGE_RAISED, BF_LEFT | BF_BOTTOM | BF_RIGHT | BF_SOFT);
 796
 797             /* light edge */
 798             thumb.left = infoPtr->rcThumb.left;
 799             thumb.right = thumb.left + PointDepth;
 800             thumb.bottom = infoPtr->rcThumb.top + PointDepth + 1;
 801             thumb.top -= PointDepth;
 802             DrawEdge(hdc, &thumb, EDGE_RAISED, BF_DIAGONAL_ENDTOPRIGHT | BF_SOFT);
 803
 804             /* shadowed edge */
 805             thumb.left += PointDepth;
 806             thumb.right += PointDepth;
 807             DrawEdge(hdc, &thumb, EDGE_RAISED, BF_DIAGONAL_ENDBOTTOMRIGHT | BF_SOFT);
 808           }
 809           else
 810           {
 811             /* rectangular part */
 812             thumb.bottom -= PointDepth;
 813             DrawEdge(hdc, &thumb, EDGE_RAISED, BF_LEFT | BF_TOP | BF_RIGHT | BF_SOFT);
 814
 815             /* light edge */
 816             thumb.left = infoPtr->rcThumb.left;
 817             thumb.right = thumb.left + PointDepth;
 818             thumb.top = infoPtr->rcThumb.bottom - PointDepth - 1;
 819             thumb.bottom += PointDepth;
 820             DrawEdge(hdc, &thumb, EDGE_RAISED, BF_DIAGONAL_ENDTOPLEFT | BF_SOFT);
 821
 822             /* shadowed edge */
 823             thumb.left += PointDepth;
 824             thumb.right += PointDepth;
 825             DrawEdge(hdc, &thumb, EDGE_RAISED, BF_DIAGONAL_ENDBOTTOMLEFT | BF_SOFT);
 826           }
 827         }
 828     }
 829 }
 830
 831
 832 static inline void
 833 TRACKBAR_ActivateToolTip (const TRACKBAR_INFO *infoPtr, BOOL fShow)
 834 {
 835     TTTOOLINFOW ti;
 836
 837     if (!infoPtr->hwndToolTip) return;
 838
 839     ZeroMemory(&ti, sizeof(ti));
 840     ti.cbSize = sizeof(ti);
 841     ti.hwnd   = infoPtr->hwndSelf;
 842
 843     SendMessageW (infoPtr->hwndToolTip, TTM_TRACKACTIVATE, fShow, (LPARAM)&ti);
 844 }
 845
 846
 847 static void
 848 TRACKBAR_UpdateToolTip (const TRACKBAR_INFO *infoPtr)
 849 {
 850     WCHAR buf[80];
 851     static const WCHAR fmt[] = { '%', 'l', 'd', 0 };
 852     TTTOOLINFOW ti;
 853     POINT pt;
 854     RECT rcClient;
 855     LRESULT size;
 856
 857     if (!infoPtr->hwndToolTip) return;
 858
 859     ZeroMemory(&ti, sizeof(ti));
 860     ti.cbSize = sizeof(ti);
 861     ti.hwnd   = infoPtr->hwndSelf;
 862     ti.uFlags = TTF_IDISHWND | TTF_TRACK | TTF_ABSOLUTE;
 863
 864     wsprintfW (buf, fmt, infoPtr->lPos);
 865     ti.lpszText = buf;
 866     SendMessageW (infoPtr->hwndToolTip, TTM_UPDATETIPTEXTW, 0, (LPARAM)&ti);
 867
 868     GetClientRect (infoPtr->hwndSelf, &rcClient);
 869     size = SendMessageW (infoPtr->hwndToolTip, TTM_GETBUBBLESIZE, 0, (LPARAM)&ti);
 870     if (infoPtr->dwStyle & TBS_VERT) {
 871         if (infoPtr->fLocation == TBTS_LEFT)
 872             pt.x = 0 - LOWORD(size) - TOOLTIP_OFFSET;
 873         else
 874             pt.x = rcClient.right + TOOLTIP_OFFSET;
 875         pt.y = (infoPtr->rcThumb.top + infoPtr->rcThumb.bottom - HIWORD(size))/2;
 876     } else {
 877         if (infoPtr->fLocation == TBTS_TOP)
 878             pt.y = 0 - HIWORD(size) - TOOLTIP_OFFSET;
 879         else
 880             pt.y = rcClient.bottom + TOOLTIP_OFFSET;
 881         pt.x = (infoPtr->rcThumb.left + infoPtr->rcThumb.right - LOWORD(size))/2;
 882     }
 883     ClientToScreen(infoPtr->hwndSelf, &pt);
 884
 885     SendMessageW (infoPtr->hwndToolTip, TTM_TRACKPOSITION,
 886                   0, MAKELPARAM(pt.x, pt.y));
 887 }
 888
 889
 890 static void
 891 TRACKBAR_Refresh (TRACKBAR_INFO *infoPtr, HDC hdcDst)
 892 {
 893     RECT rcClient;
 894     HDC hdc;
 895     HBITMAP hOldBmp = 0, hOffScreenBmp = 0;
 896     NMCUSTOMDRAW nmcd;
 897     int gcdrf, icdrf;
 898
 899     if (infoPtr->flags & TB_THUMBCHANGED) {
 900         TRACKBAR_UpdateThumb (infoPtr);
 901         if (infoPtr->flags & TB_THUMBSIZECHANGED)
 902             TRACKBAR_CalcChannel (infoPtr);
 903     }
 904     if (infoPtr->flags & TB_SELECTIONCHANGED)
 905         TRACKBAR_CalcSelection (infoPtr);
 906
 907     if (infoPtr->flags & TB_DRAG_MODE)
 908         TRACKBAR_UpdateToolTip (infoPtr);
 909
 910     infoPtr->flags &= ~ (TB_THUMBCHANGED | TB_SELECTIONCHANGED);
 911
 912     GetClientRect (infoPtr->hwndSelf, &rcClient);
 913
 914     /* try to render offscreen, if we fail, carrry onscreen */
 915     hdc = CreateCompatibleDC(hdcDst);
 916     if (hdc) {
 917         hOffScreenBmp = CreateCompatibleBitmap(hdcDst, rcClient.right, rcClient.bottom);
 918         if (hOffScreenBmp) {
 919             hOldBmp = SelectObject(hdc, hOffScreenBmp);
 920         } else {
 921             DeleteObject(hdc);
 922             hdc = hdcDst;
 923         }
 924     } else {
 925         hdc = hdcDst;
 926     }
 927
 928     ZeroMemory(&nmcd, sizeof(nmcd));
 929     nmcd.hdr.hwndFrom = infoPtr->hwndSelf;
 930     nmcd.hdr.idFrom = GetWindowLongPtrW (infoPtr->hwndSelf, GWLP_ID);
 931     nmcd.hdr.code = NM_CUSTOMDRAW;
 932     nmcd.hdc = hdc;
 933
 934     /* start the paint cycle */
 935     nmcd.rc = rcClient;
 936     gcdrf = notify_customdraw(infoPtr, &nmcd, CDDS_PREPAINT);
 937     if (gcdrf & CDRF_SKIPDEFAULT) goto cleanup;
 938
 939     /* Erase background */
 940     if (gcdrf == CDRF_DODEFAULT ||
 941         notify_customdraw(infoPtr, &nmcd, CDDS_PREERASE) != CDRF_SKIPDEFAULT) {
 942         if (GetWindowTheme (infoPtr->hwndSelf)) {
 943             DrawThemeParentBackground (infoPtr->hwndSelf, hdc, 0);
 944         }
 945         else {
 946             HBRUSH brush = (HBRUSH)SendMessageW(infoPtr->hwndNotify, WM_CTLCOLORSTATIC,
 947                     (WPARAM)hdc, (LPARAM)infoPtr->hwndSelf);
 948             FillRect (hdc, &rcClient, brush ? brush : GetSysColorBrush(COLOR_BTNFACE));
 949         }
 950         if (gcdrf != CDRF_DODEFAULT)
 951             notify_customdraw(infoPtr, &nmcd, CDDS_POSTERASE);
 952     }
 953
 954     /* draw channel */
 955     if (gcdrf & CDRF_NOTIFYITEMDRAW) {
 956         nmcd.dwItemSpec = TBCD_CHANNEL;
 957         nmcd.uItemState = CDIS_DEFAULT;
 958         nmcd.rc = infoPtr->rcChannel;
 959         icdrf = notify_customdraw(infoPtr, &nmcd, CDDS_ITEMPREPAINT);
 960     } else icdrf = CDRF_DODEFAULT;
 961     if ( !(icdrf & CDRF_SKIPDEFAULT) ) {
 962         TRACKBAR_DrawChannel (infoPtr, hdc);
 963         if (icdrf & CDRF_NOTIFYPOSTPAINT)
 964             notify_customdraw(infoPtr, &nmcd, CDDS_ITEMPOSTPAINT);
 965     }
 966
 967
 968     /* draw tics */
 969     if (!(infoPtr->dwStyle & TBS_NOTICKS)) {
 970         if (gcdrf & CDRF_NOTIFYITEMDRAW) {
 971             nmcd.dwItemSpec = TBCD_TICS;
 972             nmcd.uItemState = CDIS_DEFAULT;
 973             nmcd.rc = rcClient;
 974             icdrf = notify_customdraw(infoPtr, &nmcd, CDDS_ITEMPREPAINT);
 975         } else icdrf = CDRF_DODEFAULT;
 976         if ( !(icdrf & CDRF_SKIPDEFAULT) ) {
 977             TRACKBAR_DrawTics (infoPtr, hdc);
 978             if (icdrf & CDRF_NOTIFYPOSTPAINT)
 979                 notify_customdraw(infoPtr, &nmcd, CDDS_ITEMPOSTPAINT);
 980         }
 981     }
 982
 983     /* draw thumb */
 984     if (!(infoPtr->dwStyle & TBS_NOTHUMB)) {
 985         if (gcdrf & CDRF_NOTIFYITEMDRAW) {
 986             nmcd.dwItemSpec = TBCD_THUMB;
 987             nmcd.uItemState = infoPtr->flags & TB_DRAG_MODE ? CDIS_HOT : CDIS_DEFAULT;
 988             nmcd.rc = infoPtr->rcThumb;
 989             icdrf = notify_customdraw(infoPtr, &nmcd, CDDS_ITEMPREPAINT);
 990         } else icdrf = CDRF_DODEFAULT;
 991         if ( !(icdrf & CDRF_SKIPDEFAULT) ) {
 992             TRACKBAR_DrawThumb(infoPtr, hdc);
 993             if (icdrf & CDRF_NOTIFYPOSTPAINT)
 994                 notify_customdraw(infoPtr, &nmcd, CDDS_ITEMPOSTPAINT);
 995         }
 996     }
 997
 998     /* draw focus rectangle */
 999     if (infoPtr->bFocussed) {
1000         DrawFocusRect(hdc, &rcClient);
1001     }
1002
1003     /* finish up the painting */
1004     if (gcdrf & CDRF_NOTIFYPOSTPAINT)
1005         notify_customdraw(infoPtr, &nmcd, CDDS_POSTPAINT);
1006
1007 cleanup:
1008     /* cleanup, if we rendered offscreen */
1009     if (hdc != hdcDst) {
1010         BitBlt(hdcDst, 0, 0, rcClient.right, rcClient.bottom, hdc, 0, 0, SRCCOPY);
1011         SelectObject(hdc, hOldBmp);
1012         DeleteObject(hOffScreenBmp);
1013         DeleteObject(hdc);
1014     }
1015 }
1016
1017
1018 static void
1019 TRACKBAR_AlignBuddies (const TRACKBAR_INFO *infoPtr)
1020 {
1021     HWND hwndParent = GetParent (infoPtr->hwndSelf);
1022     RECT rcSelf, rcBuddy;
1023     INT x, y;
1024
1025     GetWindowRect (infoPtr->hwndSelf, &rcSelf);
1026     MapWindowPoints (HWND_DESKTOP, hwndParent, (LPPOINT)&rcSelf, 2);
1027
1028     /* align buddy left or above */
1029     if (infoPtr->hwndBuddyLA) {
1030         GetWindowRect (infoPtr->hwndBuddyLA, &rcBuddy);
1031         MapWindowPoints (HWND_DESKTOP, hwndParent, (LPPOINT)&rcBuddy, 2);
1032
1033         if (infoPtr->dwStyle & TBS_VERT) {
1034             x = (infoPtr->rcChannel.right + infoPtr->rcChannel.left) / 2 -
1035                 (rcBuddy.right - rcBuddy.left) / 2 + rcSelf.left;
1036             y = rcSelf.top - (rcBuddy.bottom - rcBuddy.top);
1037         }
1038         else {
1039             x = rcSelf.left - (rcBuddy.right - rcBuddy.left);
1040             y = (infoPtr->rcChannel.bottom + infoPtr->rcChannel.top) / 2 -
1041                 (rcBuddy.bottom - rcBuddy.top) / 2 + rcSelf.top;
1042         }
1043
1044         SetWindowPos (infoPtr->hwndBuddyLA, 0, x, y, 0, 0,
1045                       SWP_NOZORDER | SWP_NOSIZE);
1046     }
1047
1048
1049     /* align buddy right or below */
1050     if (infoPtr->hwndBuddyRB) {
1051         GetWindowRect (infoPtr->hwndBuddyRB, &rcBuddy);
1052         MapWindowPoints (HWND_DESKTOP, hwndParent, (LPPOINT)&rcBuddy, 2);
1053
1054         if (infoPtr->dwStyle & TBS_VERT) {
1055             x = (infoPtr->rcChannel.right + infoPtr->rcChannel.left) / 2 -
1056                 (rcBuddy.right - rcBuddy.left) / 2 + rcSelf.left;
1057             y = rcSelf.bottom;
1058         }
1059         else {
1060             x = rcSelf.right;
1061             y = (infoPtr->rcChannel.bottom + infoPtr->rcChannel.top) / 2 -
1062                 (rcBuddy.bottom - rcBuddy.top) / 2 + rcSelf.top;
1063         }
1064         SetWindowPos (infoPtr->hwndBuddyRB, 0, x, y, 0, 0,
1065                       SWP_NOZORDER | SWP_NOSIZE);
1066     }
1067 }
1068
1069
1070 static LRESULT
1071 TRACKBAR_ClearSel (TRACKBAR_INFO *infoPtr, BOOL fRedraw)
1072 {
1073     infoPtr->lSelMin = 0;
1074     infoPtr->lSelMax = 0;
1075     infoPtr->flags |= TB_SELECTIONCHANGED;
1076
1077     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
1078
1079     return 0;
1080 }
1081
1082
1083 static LRESULT
1084 TRACKBAR_ClearTics (TRACKBAR_INFO *infoPtr, BOOL fRedraw)
1085 {
1086     if (infoPtr->tics) {
1087         Free (infoPtr->tics);
1088         infoPtr->tics = NULL;
1089         infoPtr->uNumTics = 0;
1090     }
1091
1092     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
1093
1094     return 0;
1095 }
1096
1097
1098 static inline LRESULT
1099 TRACKBAR_GetChannelRect (const TRACKBAR_INFO *infoPtr, LPRECT lprc)
1100 {
1101     if (lprc == NULL) return 0;
1102
1103     lprc->left   = infoPtr->rcChannel.left;
1104     lprc->right  = infoPtr->rcChannel.right;
1105     lprc->bottom = infoPtr->rcChannel.bottom;
1106     lprc->top    = infoPtr->rcChannel.top;
1107
1108     return 0;
1109 }
1110
1111
1112 static inline LONG
1113 TRACKBAR_GetNumTics (const TRACKBAR_INFO *infoPtr)
1114 {
1115     if (infoPtr->dwStyle & TBS_NOTICKS) return 0;
1116
1117     return infoPtr->uNumTics + 2;
1118 }
1119
1120
1121 static int comp_tics (const void *ap, const void *bp)
1122 {
1123     const DWORD a = *(const DWORD *)ap;
1124     const DWORD b = *(const DWORD *)bp;
1125
1126     TRACE("(a=%d, b=%d)\n", a, b);
1127     if (a < b) return -1;
1128     if (a > b) return 1;
1129     return 0;
1130 }
1131
1132
1133 static inline LONG
1134 TRACKBAR_GetTic (const TRACKBAR_INFO *infoPtr, INT iTic)
1135 {
1136     if ((iTic < 0) || (iTic >= infoPtr->uNumTics) || !infoPtr->tics)
1137         return -1;
1138
1139     qsort(infoPtr->tics, infoPtr->uNumTics, sizeof(DWORD), comp_tics);
1140     return infoPtr->tics[iTic];
1141 }
1142
1143
1144 static inline LONG
1145 TRACKBAR_GetTicPos (const TRACKBAR_INFO *infoPtr, INT iTic)
1146 {
1147     LONG range, width, pos, tic;
1148     int offsetthumb;
1149
1150     if ((iTic < 0) || (iTic >= infoPtr->uNumTics) || !infoPtr->tics)
1151         return -1;
1152
1153     tic   = TRACKBAR_GetTic (infoPtr, iTic);
1154     range = infoPtr->lRangeMax - infoPtr->lRangeMin;
1155     if (range <= 0) range = 1;
1156     offsetthumb = (infoPtr->rcThumb.right - infoPtr->rcThumb.left)/2;
1157     width = infoPtr->rcChannel.right - infoPtr->rcChannel.left - offsetthumb*2;
1158     pos   = infoPtr->rcChannel.left + offsetthumb + (width * tic) / range;
1159
1160     return pos;
1161 }
1162
1163
1164 static HWND
1165 TRACKBAR_SetBuddy (TRACKBAR_INFO *infoPtr, BOOL fLocation, HWND hwndBuddy)
1166 {
1167     HWND hwndTemp;
1168
1169     if (fLocation) {
1170         /* buddy is left or above */
1171         hwndTemp = infoPtr->hwndBuddyLA;
1172         infoPtr->hwndBuddyLA = hwndBuddy;
1173     }
1174     else {
1175         /* buddy is right or below */
1176         hwndTemp = infoPtr->hwndBuddyRB;
1177         infoPtr->hwndBuddyRB = hwndBuddy;
1178     }
1179
1180     TRACKBAR_AlignBuddies (infoPtr);
1181
1182     return hwndTemp;
1183 }
1184
1185
1186 static inline LONG
1187 TRACKBAR_SetLineSize (TRACKBAR_INFO *infoPtr, LONG lLineSize)
1188 {
1189     LONG lTemp = infoPtr->lLineSize;
1190
1191     infoPtr->lLineSize = lLineSize;
1192
1193     return lTemp;
1194 }
1195
1196
1197 static inline LONG
1198 TRACKBAR_SetPageSize (TRACKBAR_INFO *infoPtr, LONG lPageSize)
1199 {
1200     LONG lTemp = infoPtr->lPageSize;
1201
1202     if (lPageSize != -1)
1203         infoPtr->lPageSize = lPageSize;
1204     else
1205         infoPtr->lPageSize = TB_DEFAULTPAGESIZE;
1206
1207     return lTemp;
1208 }
1209
1210
1211 static inline LRESULT
1212 TRACKBAR_SetPos (TRACKBAR_INFO *infoPtr, BOOL fPosition, LONG lPosition)
1213 {
1214     LONG oldPos = infoPtr->lPos;
1215     infoPtr->lPos = lPosition;
1216
1217     if (infoPtr->lPos < infoPtr->lRangeMin)
1218         infoPtr->lPos = infoPtr->lRangeMin;
1219
1220     if (infoPtr->lPos > infoPtr->lRangeMax)
1221         infoPtr->lPos = infoPtr->lRangeMax;
1222
1223     if (fPosition && oldPos != lPosition)
1224     {
1225         TRACKBAR_UpdateThumb(infoPtr);
1226         TRACKBAR_InvalidateThumbMove(infoPtr, oldPos, lPosition);
1227     }
1228
1229     return 0;
1230 }
1231
1232
1233 static inline LRESULT
1234 TRACKBAR_SetRange (TRACKBAR_INFO *infoPtr, BOOL redraw, LONG range)
1235 {
1236     BOOL changed = infoPtr->lRangeMin != (SHORT)LOWORD(range) ||
1237                    infoPtr->lRangeMax != (SHORT)HIWORD(range);
1238
1239     infoPtr->lRangeMin = (SHORT)LOWORD(range);
1240     infoPtr->lRangeMax = (SHORT)HIWORD(range);
1241
1242     /* clip position to new min/max limit */
1243     if (infoPtr->lPos < infoPtr->lRangeMin)
1244         infoPtr->lPos = infoPtr->lRangeMin;
1245
1246     if (infoPtr->lPos > infoPtr->lRangeMax)
1247         infoPtr->lPos = infoPtr->lRangeMax;
1248
1249     infoPtr->lPageSize = (infoPtr->lRangeMax - infoPtr->lRangeMin) / 5;
1250     if (infoPtr->lPageSize == 0) infoPtr->lPageSize = 1;
1251
1252     if (changed) {
1253         if (infoPtr->dwStyle & TBS_AUTOTICKS)
1254             TRACKBAR_RecalculateTics (infoPtr);
1255         infoPtr->flags |= TB_THUMBPOSCHANGED;
1256     }
1257
1258     if (redraw) TRACKBAR_InvalidateAll(infoPtr);
1259
1260     return 0;
1261 }
1262
1263
1264 static inline LRESULT
1265 TRACKBAR_SetRangeMax (TRACKBAR_INFO *infoPtr, BOOL redraw, LONG lMax)
1266 {
1267     BOOL changed = infoPtr->lRangeMax != lMax;
1268     LONG rightmost = max(lMax, infoPtr->lRangeMin);
1269
1270     infoPtr->lRangeMax = lMax;
1271     if (infoPtr->lPos > rightmost) {
1272         infoPtr->lPos = rightmost;
1273         infoPtr->flags |= TB_THUMBPOSCHANGED;
1274     }
1275
1276     infoPtr->lPageSize = (infoPtr->lRangeMax - infoPtr->lRangeMin) / 5;
1277     if (infoPtr->lPageSize == 0) infoPtr->lPageSize = 1;
1278
1279     if (changed && (infoPtr->dwStyle & TBS_AUTOTICKS))
1280         TRACKBAR_RecalculateTics (infoPtr);
1281
1282     if (redraw) TRACKBAR_InvalidateAll(infoPtr);
1283
1284     return 0;
1285 }
1286
1287
1288 static inline LRESULT
1289 TRACKBAR_SetRangeMin (TRACKBAR_INFO *infoPtr, BOOL redraw, LONG lMin)
1290 {
1291     BOOL changed = infoPtr->lRangeMin != lMin;
1292
1293     infoPtr->lRangeMin = lMin;
1294     if (infoPtr->lPos < infoPtr->lRangeMin) {
1295         infoPtr->lPos = infoPtr->lRangeMin;
1296         infoPtr->flags |= TB_THUMBPOSCHANGED;
1297     }
1298
1299     infoPtr->lPageSize = (infoPtr->lRangeMax - infoPtr->lRangeMin) / 5;
1300     if (infoPtr->lPageSize == 0) infoPtr->lPageSize = 1;
1301
1302     if (changed && (infoPtr->dwStyle & TBS_AUTOTICKS))
1303         TRACKBAR_RecalculateTics (infoPtr);
1304
1305     if (redraw) TRACKBAR_InvalidateAll(infoPtr);
1306
1307     return 0;
1308 }
1309
1310
1311 static inline LRESULT
1312 TRACKBAR_SetSel (TRACKBAR_INFO *infoPtr, BOOL fRedraw, LONG lSel)
1313 {
1314     if (!(infoPtr->dwStyle & TBS_ENABLESELRANGE)){
1315         infoPtr->lSelMin = 0;
1316         infoPtr->lSelMax = 0;
1317         return 0;
1318     }
1319
1320     infoPtr->lSelMin = (SHORT)LOWORD(lSel);
1321     infoPtr->lSelMax = (SHORT)HIWORD(lSel);
1322     infoPtr->flags |= TB_SELECTIONCHANGED;
1323
1324     if (infoPtr->lSelMin < infoPtr->lRangeMin)
1325         infoPtr->lSelMin = infoPtr->lRangeMin;
1326     if (infoPtr->lSelMax > infoPtr->lRangeMax)
1327         infoPtr->lSelMax = infoPtr->lRangeMax;
1328
1329     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
1330
1331     return 0;
1332 }
1333
1334
1335 static inline LRESULT
1336 TRACKBAR_SetSelEnd (TRACKBAR_INFO *infoPtr, BOOL fRedraw, LONG lEnd)
1337 {
1338     if (!(infoPtr->dwStyle & TBS_ENABLESELRANGE)){
1339         infoPtr->lSelMax = 0;
1340         return 0;
1341     }
1342
1343     infoPtr->lSelMax = lEnd;
1344     infoPtr->flags |= TB_SELECTIONCHANGED;
1345
1346     if (infoPtr->lSelMax > infoPtr->lRangeMax)
1347         infoPtr->lSelMax = infoPtr->lRangeMax;
1348
1349     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
1350
1351     return 0;
1352 }
1353
1354
1355 static inline LRESULT
1356 TRACKBAR_SetSelStart (TRACKBAR_INFO *infoPtr, BOOL fRedraw, LONG lStart)
1357 {
1358     if (!(infoPtr->dwStyle & TBS_ENABLESELRANGE)){
1359         infoPtr->lSelMin = 0;
1360         return 0;
1361     }
1362
1363     infoPtr->lSelMin = lStart;
1364     infoPtr->flags  |=TB_SELECTIONCHANGED;
1365
1366     if (infoPtr->lSelMin < infoPtr->lRangeMin)
1367         infoPtr->lSelMin = infoPtr->lRangeMin;
1368
1369     if (fRedraw) TRACKBAR_InvalidateAll(infoPtr);
1370
1371     return 0;
1372 }
1373
1374
1375 static inline LRESULT
1376 TRACKBAR_SetThumbLength (TRACKBAR_INFO *infoPtr, UINT iLength)
1377 {
1378     if (infoPtr->dwStyle & TBS_FIXEDLENGTH) {
1379         /* We're not supposed to check if it's really changed or not,
1380            just repaint in any case. */
1381         infoPtr->uThumbLen = iLength;
1382         infoPtr->flags |= TB_THUMBSIZECHANGED;
1383         TRACKBAR_InvalidateAll(infoPtr);
1384     }
1385
1386     return 0;
1387 }
1388
1389
1390 static inline LRESULT
1391 TRACKBAR_SetTic (TRACKBAR_INFO *infoPtr, LONG lPos)
1392 {
1393     if ((lPos < infoPtr->lRangeMin) || (lPos> infoPtr->lRangeMax))
1394         return FALSE;
1395
1396     TRACE("lPos=%d\n", lPos);
1397
1398     infoPtr->uNumTics++;
1399     infoPtr->tics=ReAlloc( infoPtr->tics,
1400                                     (infoPtr->uNumTics)*sizeof (DWORD));
1401     if (!infoPtr->tics) {
1402         infoPtr->uNumTics = 0;
1403         notify(infoPtr, NM_OUTOFMEMORY);
1404         return FALSE;
1405     }
1406     infoPtr->tics[infoPtr->uNumTics-1] = lPos;
1407
1408     TRACKBAR_InvalidateAll(infoPtr);
1409
1410     return TRUE;
1411 }
1412
1413
1414 static inline LRESULT
1415 TRACKBAR_SetTicFreq (TRACKBAR_INFO *infoPtr, WORD wFreq)
1416 {
1417     if (infoPtr->dwStyle & TBS_AUTOTICKS) {
1418         infoPtr->uTicFreq = wFreq;
1419         TRACKBAR_RecalculateTics (infoPtr);
1420         TRACKBAR_InvalidateAll(infoPtr);
1421     }
1422
1423     TRACKBAR_UpdateThumb (infoPtr);
1424     return 0;
1425 }
1426
1427
1428 static inline INT
1429 TRACKBAR_SetTipSide (TRACKBAR_INFO *infoPtr, INT fLocation)
1430 {
1431     INT fTemp = infoPtr->fLocation;
1432
1433     infoPtr->fLocation = fLocation;
1434
1435     return fTemp;
1436 }
1437
1438
1439 static inline LRESULT
1440 TRACKBAR_SetToolTips (TRACKBAR_INFO *infoPtr, HWND hwndTT)
1441 {
1442     infoPtr->hwndToolTip = hwndTT;
1443
1444     return 0;
1445 }
1446
1447
1448 static inline BOOL
1449 TRACKBAR_SetUnicodeFormat (TRACKBAR_INFO *infoPtr, BOOL fUnicode)
1450 {
1451     BOOL bTemp = infoPtr->bUnicode;
1452
1453     infoPtr->bUnicode = fUnicode;
1454
1455     return bTemp;
1456 }
1457
1458
1459 static LRESULT
1460 TRACKBAR_InitializeThumb (TRACKBAR_INFO *infoPtr)
1461 {
1462     RECT rect;
1463     int clientWidth, clientMetric;
1464
1465     /* initial thumb length */
1466     clientMetric = (infoPtr->dwStyle & TBS_ENABLESELRANGE) ? 23 : 21;
1467     GetClientRect(infoPtr->hwndSelf,&rect);
1468     if (infoPtr->dwStyle & TBS_VERT) {
1469         clientWidth = rect.right - rect.left;
1470     } else {
1471         clientWidth = rect.bottom - rect.top;
1472     }
1473     if (clientWidth >= clientMetric)
1474         infoPtr->uThumbLen = clientMetric;
1475     else
1476         infoPtr->uThumbLen = clientWidth > 9 ? clientWidth - 6 : 4;
1477
1478     TRACKBAR_CalcChannel (infoPtr);
1479     TRACKBAR_UpdateThumb (infoPtr);
1480     infoPtr->flags &= ~TB_SELECTIONCHANGED;
1481
1482     return 0;
1483 }
1484
1485
1486 static LRESULT
1487 TRACKBAR_Create (HWND hwnd, const CREATESTRUCTW *lpcs)
1488 {
1489     TRACKBAR_INFO *infoPtr;
1490
1491     infoPtr = Alloc (sizeof(TRACKBAR_INFO));
1492     if (!infoPtr) return -1;
1493     SetWindowLongPtrW (hwnd, 0, (DWORD_PTR)infoPtr);
1494
1495     /* set default values */
1496     infoPtr->hwndSelf  = hwnd;
1497     infoPtr->dwStyle   = lpcs->style;
1498     infoPtr->lRangeMin = 0;
1499     infoPtr->lRangeMax = 100;
1500     infoPtr->lLineSize = 1;
1501     infoPtr->lPageSize = TB_DEFAULTPAGESIZE;
1502     infoPtr->lSelMin   = 0;
1503     infoPtr->lSelMax   = 0;
1504     infoPtr->lPos      = 0;
1505     infoPtr->fLocation = TBTS_TOP;
1506     infoPtr->uNumTics  = 0;    /* start and end tic are not included in count*/
1507     infoPtr->uTicFreq  = 1;
1508     infoPtr->tics      = NULL;
1509     infoPtr->hwndNotify= lpcs->hwndParent;
1510
1511     TRACKBAR_InitializeThumb (infoPtr);
1512
1513     /* Create tooltip control */
1514     if (infoPtr->dwStyle & TBS_TOOLTIPS) {
1515
1516         infoPtr->hwndToolTip =
1517             CreateWindowExW (0, TOOLTIPS_CLASSW, NULL, WS_POPUP,
1518                              CW_USEDEFAULT, CW_USEDEFAULT,
1519                              CW_USEDEFAULT, CW_USEDEFAULT,
1520                              hwnd, 0, 0, 0);
1521
1522         if (infoPtr->hwndToolTip) {
1523             TTTOOLINFOW ti;
1524             WCHAR wEmpty = 0;
1525             ZeroMemory (&ti, sizeof(ti));
1526             ti.cbSize   = sizeof(ti);
1527             ti.uFlags   = TTF_IDISHWND | TTF_TRACK | TTF_ABSOLUTE;
1528             ti.hwnd     = hwnd;
1529             ti.lpszText = &wEmpty;
1530
1531             SendMessageW (infoPtr->hwndToolTip, TTM_ADDTOOLW, 0, (LPARAM)&ti);
1532          }
1533     }
1534
1535     OpenThemeData (hwnd, themeClass);
1536
1537     return 0;
1538 }
1539
1540
1541 static LRESULT
1542 TRACKBAR_Destroy (TRACKBAR_INFO *infoPtr)
1543 {
1544     /* delete tooltip control */
1545     if (infoPtr->hwndToolTip)
1546         DestroyWindow (infoPtr->hwndToolTip);
1547
1548     Free (infoPtr->tics);
1549     infoPtr->tics = NULL;
1550
1551     SetWindowLongPtrW (infoPtr->hwndSelf, 0, 0);
1552     CloseThemeData (GetWindowTheme (infoPtr->hwndSelf));
1553     Free (infoPtr);
1554
1555     return 0;
1556 }
1557
1558
1559 static LRESULT
1560 TRACKBAR_KillFocus (TRACKBAR_INFO *infoPtr)
1561 {
1562     TRACE("\n");
1563     infoPtr->bFocussed = FALSE;
1564     TRACKBAR_InvalidateAll(infoPtr);
1565
1566     return 0;
1567 }
1568
1569 static LRESULT
1570 TRACKBAR_LButtonDown (TRACKBAR_INFO *infoPtr, INT x, INT y)
1571 {
1572     POINT clickPoint;
1573
1574     clickPoint.x = x;
1575     clickPoint.y = y;
1576
1577     SetFocus(infoPtr->hwndSelf);
1578
1579     if (PtInRect(&infoPtr->rcThumb, clickPoint)) {
1580         infoPtr->flags |= TB_DRAG_MODE;
1581         SetCapture (infoPtr->hwndSelf);
1582         TRACKBAR_UpdateToolTip (infoPtr);
1583         TRACKBAR_ActivateToolTip (infoPtr, TRUE);
1584         TRACKBAR_InvalidateThumb(infoPtr, infoPtr->lPos);
1585     } else {
1586         LONG dir = TRACKBAR_GetAutoPageDirection(infoPtr, clickPoint);
1587         if (dir == 0) return 0;
1588         infoPtr->flags |= (dir < 0) ? TB_AUTO_PAGE_LEFT : TB_AUTO_PAGE_RIGHT;
1589         TRACKBAR_AutoPage (infoPtr, clickPoint);
1590         SetCapture (infoPtr->hwndSelf);
1591         SetTimer(infoPtr->hwndSelf, TB_REFRESH_TIMER, TB_REFRESH_DELAY, 0);
1592     }
1593
1594     return 0;
1595 }
1596
1597
1598 static LRESULT
1599 TRACKBAR_LButtonUp (TRACKBAR_INFO *infoPtr)
1600 {
1601     if (infoPtr->flags & TB_DRAG_MODE) {
1602         notify_with_scroll (infoPtr, TB_THUMBPOSITION | (infoPtr->lPos<<16));
1603         notify_with_scroll (infoPtr, TB_ENDTRACK);
1604         infoPtr->flags &= ~TB_DRAG_MODE;
1605         ReleaseCapture ();
1606         notify(infoPtr, NM_RELEASEDCAPTURE);
1607         TRACKBAR_ActivateToolTip(infoPtr, FALSE);
1608         TRACKBAR_InvalidateThumb(infoPtr, infoPtr->lPos);
1609     }
1610     if (infoPtr->flags & TB_AUTO_PAGE) {
1611         KillTimer (infoPtr->hwndSelf, TB_REFRESH_TIMER);
1612         infoPtr->flags &= ~TB_AUTO_PAGE;
1613         notify_with_scroll (infoPtr, TB_ENDTRACK);
1614         ReleaseCapture ();
1615         notify(infoPtr, NM_RELEASEDCAPTURE);
1616     }
1617
1618     return 0;
1619 }
1620
1621
1622 static LRESULT
1623 TRACKBAR_CaptureChanged (const TRACKBAR_INFO *infoPtr)
1624 {
1625     notify_with_scroll (infoPtr, TB_ENDTRACK);
1626     return 0;
1627 }
1628
1629
1630 static LRESULT
1631 TRACKBAR_Paint (TRACKBAR_INFO *infoPtr, HDC hdc)
1632 {
1633     if (hdc) {
1634         TRACKBAR_Refresh(infoPtr, hdc);
1635     } else {
1636         PAINTSTRUCT ps;
1637         hdc = BeginPaint (infoPtr->hwndSelf, &ps);
1638         TRACKBAR_Refresh (infoPtr, hdc);
1639         EndPaint (infoPtr->hwndSelf, &ps);
1640     }
1641
1642     return 0;
1643 }
1644
1645
1646 static LRESULT
1647 TRACKBAR_SetFocus (TRACKBAR_INFO *infoPtr)
1648 {
1649     TRACE("\n");
1650     infoPtr->bFocussed = TRUE;
1651     TRACKBAR_InvalidateAll(infoPtr);
1652
1653     return 0;
1654 }
1655
1656
1657 static LRESULT
1658 TRACKBAR_Size (TRACKBAR_INFO *infoPtr)
1659 {
1660     if (infoPtr->dwStyle & TBS_FIXEDLENGTH)
1661     {
1662         TRACKBAR_CalcChannel(infoPtr);
1663         TRACKBAR_UpdateThumb(infoPtr);
1664     }
1665     else
1666         TRACKBAR_InitializeThumb(infoPtr);
1667     TRACKBAR_AlignBuddies (infoPtr);
1668     TRACKBAR_InvalidateAll(infoPtr);
1669
1670     return 0;
1671 }
1672
1673 static LRESULT
1674 TRACKBAR_StyleChanged (TRACKBAR_INFO *infoPtr, WPARAM wStyleType,
1675                        const STYLESTRUCT *lpss)
1676 {
1677     if (wStyleType != GWL_STYLE) return 0;
1678
1679     infoPtr->dwStyle = lpss->styleNew;
1680
1681     return 0;
1682 }
1683
1684 static LRESULT
1685 TRACKBAR_Timer (TRACKBAR_INFO *infoPtr)
1686 {
1687     if (infoPtr->flags & TB_AUTO_PAGE) {
1688         POINT pt;
1689         if (GetCursorPos(&pt))
1690             if (ScreenToClient(infoPtr->hwndSelf, &pt))
1691                 TRACKBAR_AutoPage(infoPtr, pt);
1692     }
1693     return 0;
1694 }
1695
1696
1697 /* update theme after a WM_THEMECHANGED message */
1698 static LRESULT theme_changed (const TRACKBAR_INFO* infoPtr)
1699 {
1700     HTHEME theme = GetWindowTheme (infoPtr->hwndSelf);
1701     CloseThemeData (theme);
1702     OpenThemeData (infoPtr->hwndSelf, themeClass);
1703     return 0;
1704 }
1705
1706
1707 static LRESULT
1708 TRACKBAR_MouseMove (TRACKBAR_INFO *infoPtr, INT x, INT y)
1709 {
1710     INT clickPlace = (infoPtr->dwStyle & TBS_VERT) ? y : x;
1711     LONG dragPos, oldPos = infoPtr->lPos;
1712
1713     TRACE("(x=%d. y=%d)\n", x, y);
1714
1715     if (infoPtr->flags & TB_AUTO_PAGE) {
1716         POINT pt;
1717         pt.x = x;
1718         pt.y = y;
1719         TRACKBAR_AutoPage (infoPtr, pt);
1720         return TRUE;
1721     }
1722
1723     if (!(infoPtr->flags & TB_DRAG_MODE))
1724     {
1725         if (GetWindowTheme (infoPtr->hwndSelf))
1726         {
1727             DWORD oldFlags = infoPtr->flags;
1728             POINT pt;
1729             pt.x = x;
1730             pt.y = y;
1731             if (PtInRect (&infoPtr->rcThumb, pt))
1732             {
1733                 TRACKMOUSEEVENT tme;
1734                 tme.cbSize = sizeof( tme );
1735                 tme.dwFlags = TME_LEAVE;
1736                 tme.hwndTrack = infoPtr->hwndSelf;
1737                 TrackMouseEvent( &tme );
1738                 infoPtr->flags |= TB_THUMB_HOT;
1739             }
1740             else
1741             {
1742                 TRACKMOUSEEVENT tme;
1743                 tme.cbSize = sizeof( tme );
1744                 tme.dwFlags = TME_CANCEL;
1745                 tme.hwndTrack = infoPtr->hwndSelf;
1746                 TrackMouseEvent( &tme );
1747                 infoPtr->flags &= ~TB_THUMB_HOT;
1748             }
1749             if (oldFlags != infoPtr->flags) InvalidateRect (infoPtr->hwndSelf, &infoPtr->rcThumb, FALSE);
1750         }
1751         return TRUE;
1752     }
1753
1754     dragPos = TRACKBAR_ConvertPlaceToPosition (infoPtr, clickPlace);
1755
1756     if (dragPos == oldPos) return TRUE;
1757
1758     infoPtr->lPos = dragPos;
1759     TRACKBAR_UpdateThumb (infoPtr);
1760
1761     notify_with_scroll (infoPtr, TB_THUMBTRACK | (infoPtr->lPos<<16));
1762
1763     TRACKBAR_InvalidateThumbMove(infoPtr, oldPos, dragPos);
1764     UpdateWindow (infoPtr->hwndSelf);
1765
1766     return TRUE;
1767 }
1768
1769 static BOOL
1770 TRACKBAR_KeyDown (TRACKBAR_INFO *infoPtr, INT nVirtKey)
1771 {
1772     BOOL downIsLeft = infoPtr->dwStyle & TBS_DOWNISLEFT;
1773     BOOL vert = infoPtr->dwStyle & TBS_VERT;
1774     LONG pos = infoPtr->lPos;
1775
1776     TRACE("%x\n", nVirtKey);
1777
1778     switch (nVirtKey) {
1779     case VK_UP:
1780         if (!vert && downIsLeft) TRACKBAR_LineDown(infoPtr);
1781         else TRACKBAR_LineUp(infoPtr);
1782         break;
1783     case VK_LEFT:
1784         if (vert && downIsLeft) TRACKBAR_LineDown(infoPtr);
1785         else TRACKBAR_LineUp(infoPtr);
1786         break;
1787     case VK_DOWN:
1788         if (!vert && downIsLeft) TRACKBAR_LineUp(infoPtr);
1789         else TRACKBAR_LineDown(infoPtr);
1790         break;
1791     case VK_RIGHT:
1792         if (vert && downIsLeft) TRACKBAR_LineUp(infoPtr);
1793         else TRACKBAR_LineDown(infoPtr);
1794         break;
1795     case VK_NEXT:
1796         if (!vert && downIsLeft) TRACKBAR_PageUp(infoPtr);
1797         else TRACKBAR_PageDown(infoPtr);
1798         break;
1799     case VK_PRIOR:
1800         if (!vert && downIsLeft) TRACKBAR_PageDown(infoPtr);
1801         else TRACKBAR_PageUp(infoPtr);
1802         break;
1803     case VK_HOME:
1804         if (infoPtr->lPos == infoPtr->lRangeMin) return FALSE;
1805         infoPtr->lPos = infoPtr->lRangeMin;
1806         notify_with_scroll (infoPtr, TB_TOP);
1807         break;
1808     case VK_END:
1809         if (infoPtr->lPos == infoPtr->lRangeMax) return FALSE;
1810         infoPtr->lPos = infoPtr->lRangeMax;
1811         notify_with_scroll (infoPtr, TB_BOTTOM);
1812         break;
1813     }
1814
1815     if (pos != infoPtr->lPos) {
1816         TRACKBAR_UpdateThumb (infoPtr);
1817         TRACKBAR_InvalidateThumbMove (infoPtr, pos, infoPtr->lPos);
1818     }
1819
1820     return TRUE;
1821 }
1822
1823
1824 static inline BOOL
1825 TRACKBAR_KeyUp (const TRACKBAR_INFO *infoPtr, INT nVirtKey)
1826 {
1827     switch (nVirtKey) {
1828     case VK_LEFT:
1829     case VK_UP:
1830     case VK_RIGHT:
1831     case VK_DOWN:
1832     case VK_NEXT:
1833     case VK_PRIOR:
1834     case VK_HOME:
1835     case VK_END:
1836         notify_with_scroll (infoPtr, TB_ENDTRACK);
1837     }
1838     return TRUE;
1839 }
1840
1841
1842 static LRESULT
1843 TRACKBAR_Enable (TRACKBAR_INFO *infoPtr, BOOL enable)
1844 {
1845     if (enable)
1846         infoPtr->dwStyle &= ~WS_DISABLED;
1847     else
1848         infoPtr->dwStyle |= WS_DISABLED;
1849
1850     InvalidateRect(infoPtr->hwndSelf, &infoPtr->rcThumb, TRUE);
1851
1852     return 1;
1853 }
1854
1855 static LRESULT WINAPI
1856 TRACKBAR_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1857 {
1858     TRACKBAR_INFO *infoPtr = (TRACKBAR_INFO *)GetWindowLongPtrW (hwnd, 0);
1859
1860     TRACE("hwnd=%p msg=%x wparam=%lx lparam=%lx\n", hwnd, uMsg, wParam, lParam);
1861
1862     if (!infoPtr && (uMsg != WM_CREATE))
1863         return DefWindowProcW (hwnd, uMsg, wParam, lParam);
1864
1865     switch (uMsg)
1866     {
1867     case TBM_CLEARSEL:
1868         return TRACKBAR_ClearSel (infoPtr, (BOOL)wParam);
1869
1870     case TBM_CLEARTICS:
1871         return TRACKBAR_ClearTics (infoPtr, (BOOL)wParam);
1872
1873     case TBM_GETBUDDY:
1874         return (LRESULT)(wParam ? infoPtr->hwndBuddyLA : infoPtr->hwndBuddyRB);
1875
1876     case TBM_GETCHANNELRECT:
1877         return TRACKBAR_GetChannelRect (infoPtr, (LPRECT)lParam);
1878
1879     case TBM_GETLINESIZE:
1880         return infoPtr->lLineSize;
1881
1882     case TBM_GETNUMTICS:
1883         return TRACKBAR_GetNumTics (infoPtr);
1884
1885     case TBM_GETPAGESIZE:
1886         return infoPtr->lPageSize;
1887
1888     case TBM_GETPOS:
1889         return infoPtr->lPos;
1890
1891     case TBM_GETPTICS:
1892         return (LRESULT)infoPtr->tics;
1893
1894     case TBM_GETRANGEMAX:
1895         return infoPtr->lRangeMax;
1896
1897     case TBM_GETRANGEMIN:
1898         return infoPtr->lRangeMin;
1899
1900     case TBM_GETSELEND:
1901         return infoPtr->lSelMax;
1902
1903     case TBM_GETSELSTART:
1904         return infoPtr->lSelMin;
1905
1906     case TBM_GETTHUMBLENGTH:
1907         return infoPtr->uThumbLen;
1908
1909     case TBM_GETTHUMBRECT:
1910         return CopyRect((LPRECT)lParam, &infoPtr->rcThumb);
1911
1912     case TBM_GETTIC:
1913         return TRACKBAR_GetTic (infoPtr, (INT)wParam);
1914
1915     case TBM_GETTICPOS:
1916         return TRACKBAR_GetTicPos (infoPtr, (INT)wParam);
1917
1918     case TBM_GETTOOLTIPS:
1919         return (LRESULT)infoPtr->hwndToolTip;
1920
1921     case TBM_GETUNICODEFORMAT:
1922         return infoPtr->bUnicode;
1923
1924     case TBM_SETBUDDY:
1925         return (LRESULT) TRACKBAR_SetBuddy(infoPtr, (BOOL)wParam, (HWND)lParam);
1926
1927     case TBM_SETLINESIZE:
1928         return TRACKBAR_SetLineSize (infoPtr, (LONG)lParam);
1929
1930     case TBM_SETPAGESIZE:
1931         return TRACKBAR_SetPageSize (infoPtr, (LONG)lParam);
1932
1933     case TBM_SETPOS:
1934         return TRACKBAR_SetPos (infoPtr, (BOOL)wParam, (LONG)lParam);
1935
1936     case TBM_SETRANGE:
1937         return TRACKBAR_SetRange (infoPtr, (BOOL)wParam, (LONG)lParam);
1938
1939     case TBM_SETRANGEMAX:
1940         return TRACKBAR_SetRangeMax (infoPtr, (BOOL)wParam, (LONG)lParam);
1941
1942     case TBM_SETRANGEMIN:
1943         return TRACKBAR_SetRangeMin (infoPtr, (BOOL)wParam, (LONG)lParam);
1944
1945     case TBM_SETSEL:
1946         return TRACKBAR_SetSel (infoPtr, (BOOL)wParam, (LONG)lParam);
1947
1948     case TBM_SETSELEND:
1949         return TRACKBAR_SetSelEnd (infoPtr, (BOOL)wParam, (LONG)lParam);
1950
1951     case TBM_SETSELSTART:
1952         return TRACKBAR_SetSelStart (infoPtr, (BOOL)wParam, (LONG)lParam);
1953
1954     case TBM_SETTHUMBLENGTH:
1955         return TRACKBAR_SetThumbLength (infoPtr, (UINT)wParam);
1956
1957     case TBM_SETTIC:
1958         return TRACKBAR_SetTic (infoPtr, (LONG)lParam);
1959
1960     case TBM_SETTICFREQ:
1961         return TRACKBAR_SetTicFreq (infoPtr, (WORD)wParam);
1962
1963     case TBM_SETTIPSIDE:
1964         return TRACKBAR_SetTipSide (infoPtr, (INT)wParam);
1965
1966     case TBM_SETTOOLTIPS:
1967         return TRACKBAR_SetToolTips (infoPtr, (HWND)wParam);
1968
1969     case TBM_SETUNICODEFORMAT:
1970         return TRACKBAR_SetUnicodeFormat (infoPtr, (BOOL)wParam);
1971
1972
1973     case WM_CAPTURECHANGED:
1974         if (hwnd == (HWND)lParam) return 0;
1975         return TRACKBAR_CaptureChanged (infoPtr);
1976
1977     case WM_CREATE:
1978         return TRACKBAR_Create (hwnd, (LPCREATESTRUCTW)lParam);
1979
1980     case WM_DESTROY:
1981         return TRACKBAR_Destroy (infoPtr);
1982
1983     case WM_ENABLE:
1984         return TRACKBAR_Enable (infoPtr, (BOOL)wParam);
1985
1986     case WM_ERASEBKGND:
1987         return 0;
1988
1989     case WM_GETDLGCODE:
1990         return DLGC_WANTARROWS;
1991
1992     case WM_KEYDOWN:
1993         return TRACKBAR_KeyDown (infoPtr, (INT)wParam);
1994
1995     case WM_KEYUP:
1996         return TRACKBAR_KeyUp (infoPtr, (INT)wParam);
1997
1998     case WM_KILLFOCUS:
1999         return TRACKBAR_KillFocus (infoPtr);
2000
2001     case WM_LBUTTONDOWN:
2002         return TRACKBAR_LButtonDown (infoPtr, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam));
2003
2004     case WM_LBUTTONUP:
2005         return TRACKBAR_LButtonUp (infoPtr);
2006
2007     case WM_MOUSELEAVE:
2008         infoPtr->flags &= ~TB_THUMB_HOT;
2009         InvalidateRect (infoPtr->hwndSelf, &infoPtr->rcThumb, FALSE);
2010         return 0;
2011
2012     case WM_MOUSEMOVE:
2013         return TRACKBAR_MouseMove (infoPtr, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam));
2014
2015     case WM_PRINTCLIENT:
2016     case WM_PAINT:
2017         return TRACKBAR_Paint (infoPtr, (HDC)wParam);
2018
2019     case WM_SETFOCUS:
2020         return TRACKBAR_SetFocus (infoPtr);
2021
2022     case WM_SIZE:
2023         return TRACKBAR_Size (infoPtr);
2024
2025     case WM_STYLECHANGED:
2026         return TRACKBAR_StyleChanged (infoPtr, wParam, (LPSTYLESTRUCT)lParam);
2027
2028     case WM_THEMECHANGED:
2029         return theme_changed (infoPtr);
2030
2031     case WM_TIMER:
2032         return TRACKBAR_Timer (infoPtr);
2033
2034     case WM_WININICHANGE:
2035         return TRACKBAR_InitializeThumb (infoPtr);
2036
2037     default:
2038         if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
2039             ERR("unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);
2040         return DefWindowProcW (hwnd, uMsg, wParam, lParam);
2041     }
2042 }
2043
2044
2045 void TRACKBAR_Register (void)
2046 {
2047     WNDCLASSW wndClass;
2048
2049     ZeroMemory (&wndClass, sizeof(WNDCLASSW));
2050     wndClass.style         = CS_GLOBALCLASS;
2051     wndClass.lpfnWndProc   = TRACKBAR_WindowProc;
2052     wndClass.cbClsExtra    = 0;
2053     wndClass.cbWndExtra    = sizeof(TRACKBAR_INFO *);
2054     wndClass.hCursor       = LoadCursorW (0, (LPWSTR)IDC_ARROW);
2055     wndClass.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1);
2056     wndClass.lpszClassName = TRACKBAR_CLASSW;
2057
2058     RegisterClassW (&wndClass);
2059 }
2060
2061
2062 void TRACKBAR_Unregister (void)
2063 {
2064     UnregisterClassW (TRACKBAR_CLASSW, NULL);
2065 }