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