context.c 31.2 KB
Newer Older
1 2 3 4
/*
 * Tablet Context
 *
 * Copyright 2002 Patrik Stridvall
5
 * Copyright 2003 CodeWeavers, Aric Stewart
6 7 8 9 10 11 12 13 14 15 16 17 18
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
19
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 21 22
 */

#include "config.h"
23 24
#include <stdio.h>
#include <stdlib.h>
25 26
#include <stdarg.h>

27 28
#include "windef.h"
#include "winerror.h"
29 30
#include "winbase.h"
#include "winuser.h"
31
#include "winnls.h"
32 33

#include "wintab.h"
34
#include "wintab_internal.h"
35 36 37 38 39

#include "wine/debug.h"

WINE_DEFAULT_DEBUG_CHANNEL(wintab32);

40 41 42 43 44 45 46 47 48
/*
 * Documentation found at
 * http://www.csl.sony.co.jp/projects/ar/restricted/wintabl.html
 */

static BOOL gLoaded;
static LPOPENCONTEXT gOpenContexts;
static HCTX gTopContext = (HCTX)0xc00;

49 50 51 52 53 54 55 56
static void LOGCONTEXTAtoW(const LOGCONTEXTA *in, LOGCONTEXTW *out)
{
    MultiByteToWideChar(CP_ACP, 0, in->lcName, -1, out->lcName, LCNAMELEN);
    out->lcName[LCNAMELEN - 1] = 0;
    /* we use the fact that the fields after lcName are the same in LOGCONTEXTA and W */
    memcpy(&out->lcOptions, &in->lcOptions, sizeof(LOGCONTEXTA) - FIELD_OFFSET(LOGCONTEXTA, lcOptions));
}

57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
static void LOGCONTEXTWtoA(const LOGCONTEXTW *in, LOGCONTEXTA *out)
{
    WideCharToMultiByte(CP_ACP, 0, in->lcName, LCNAMELEN, out->lcName, LCNAMELEN, NULL, NULL);
    out->lcName[LCNAMELEN - 1] = 0;
    /* we use the fact that the fields after lcName are the same in LOGCONTEXTA and W */
    memcpy(&out->lcOptions, &in->lcOptions, sizeof(LOGCONTEXTW) - FIELD_OFFSET(LOGCONTEXTW, lcOptions));
}

static BOOL is_logcontext_category(UINT wCategory)
{
    return wCategory == WTI_DEFSYSCTX || wCategory == WTI_DEFCONTEXT || wCategory == WTI_DDCTXS;
}

static BOOL is_string_field(UINT wCategory, UINT nIndex)
{
    if (wCategory == WTI_INTERFACE && nIndex == IFC_WINTABID)
        return TRUE;
    if (is_logcontext_category(wCategory) && nIndex == CTX_NAME)
        return TRUE;
76 77
    if ((wCategory >= WTI_CURSORS && wCategory <= WTI_CURSORS + 9) &&
            (nIndex == CSR_NAME || nIndex == CSR_BTNNAMES))
78 79 80 81 82 83
        return TRUE;
    if (wCategory == WTI_DEVICES && (nIndex == DVC_NAME || nIndex == DVC_PNPID))
        return TRUE;
    return FALSE;
}

84
static const char* DUMPBITS(int x)
85
{
86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102
    char buf[200];
    buf[0] = 0;
    if (x&PK_CONTEXT) strcat(buf,"PK_CONTEXT ");
    if (x&PK_STATUS) strcat(buf, "PK_STATUS ");
    if (x&PK_TIME) strcat(buf, "PK_TIME ");
    if (x&PK_CHANGED) strcat(buf, "PK_CHANGED ");
    if (x&PK_SERIAL_NUMBER) strcat(buf, "PK_SERIAL_NUMBER ");
    if (x&PK_CURSOR) strcat(buf, "PK_CURSOR ");
    if (x&PK_BUTTONS) strcat(buf, "PK_BUTTONS ");
    if (x&PK_X) strcat(buf, "PK_X ");
    if (x&PK_Y) strcat(buf, "PK_Y ");
    if (x&PK_Z) strcat(buf, "PK_Z ");
    if (x&PK_NORMAL_PRESSURE) strcat(buf, "PK_NORMAL_PRESSURE ");
    if (x&PK_TANGENT_PRESSURE) strcat(buf, "PK_TANGENT_PRESSURE ");
    if (x&PK_ORIENTATION) strcat(buf, "PK_ORIENTATION ");
    if (x&PK_ROTATION) strcat(buf, "PK_ROTATION ");
    return wine_dbg_sprintf("{%s}",buf);
103 104 105 106
}

static inline void DUMPPACKET(WTPACKET packet)
{
107
    TRACE("pkContext: %p pkStatus: 0x%x pkTime : 0x%x pkChanged: 0x%x pkSerialNumber: 0x%x pkCursor : %i pkButtons: %x pkX: %i pkY: %i pkZ: %i pkNormalPressure: %i pkTangentPressure: %i pkOrientation: (%i,%i,%i) pkRotation: (%i,%i,%i)\n",
108 109 110 111 112
          packet.pkContext, packet.pkStatus, packet.pkTime, packet.pkChanged, packet.pkSerialNumber,
          packet.pkCursor, packet.pkButtons, packet.pkX, packet.pkY, packet.pkZ,
          packet.pkNormalPressure, packet.pkTangentPressure,
          packet.pkOrientation.orAzimuth, packet.pkOrientation.orAltitude, packet.pkOrientation.orTwist,
          packet.pkRotation.roPitch, packet.pkRotation.roRoll, packet.pkRotation.roYaw);
113 114
}

115
static inline void DUMPCONTEXT(LOGCONTEXTW lc)
116
{
117 118 119 120 121 122 123 124 125 126 127 128 129
    TRACE("Name: %s, Options: %x, Status: %x, Locks: %x, MsgBase: %x, "
          "Device: %x, PktRate: %x, "
          "%x%s, %x%s, %x%s, "
          "BtnDnMask: %x, BtnUpMask: %x, "
          "InOrgX: %i, InOrgY: %i, InOrgZ: %i, "
          "InExtX: %i, InExtY: %i, InExtZ: %i, "
          "OutOrgX: %i, OutOrgY: %i, OutOrgZ: %i, "
          "OutExtX: %i, OutExtY: %i, OutExtZ: %i, "
          "SensX: %i, SensY: %i, SensZ: %i, "
          "SysMode: %i, "
          "SysOrgX: %i, SysOrgY: %i, "
          "SysExtX: %i, SysExtY: %i, "
          "SysSensX: %i, SysSensY: %i\n",
130 131 132 133 134 135 136 137 138
          wine_dbgstr_w(lc.lcName), lc.lcOptions, lc.lcStatus, lc.lcLocks, lc.lcMsgBase,
          lc.lcDevice, lc.lcPktRate, lc.lcPktData, DUMPBITS(lc.lcPktData),
          lc.lcPktMode, DUMPBITS(lc.lcPktMode), lc.lcMoveMask,
          DUMPBITS(lc.lcMoveMask), lc.lcBtnDnMask, lc.lcBtnUpMask,
          lc.lcInOrgX, lc.lcInOrgY, lc.lcInOrgZ, lc.lcInExtX, lc.lcInExtY,
          lc.lcInExtZ, lc.lcOutOrgX, lc.lcOutOrgY, lc.lcOutOrgZ, lc.lcOutExtX,
          lc.lcOutExtY, lc.lcOutExtZ, lc.lcSensX, lc.lcSensY, lc.lcSensZ, lc.lcSysMode,
          lc.lcSysOrgX, lc.lcSysOrgY, lc.lcSysExtX, lc.lcSysExtY, lc.lcSysSensX,
          lc.lcSysSensY);
139 140 141 142 143 144 145 146 147 148 149 150 151 152 153
}


/* Find an open context given the handle */
static LPOPENCONTEXT TABLET_FindOpenContext(HCTX hCtx)
{
    LPOPENCONTEXT ptr = gOpenContexts;
    while (ptr)
    {
        if (ptr->handle == hCtx) return ptr;
        ptr = ptr->next;
    }
    return NULL;
}

154
static void LoadTablet(void)
155
{
156
    TRACE("Initializing the tablet to hwnd %p\n",hwndDefault);
157 158 159 160 161 162 163 164 165
    gLoaded= TRUE;
    pLoadTabletInfo(hwndDefault);
}

int TABLET_PostTabletMessage(LPOPENCONTEXT newcontext, UINT msg, WPARAM wParam,
                             LPARAM lParam, BOOL send_always)
{
    if ((send_always) || (newcontext->context.lcOptions & CXO_MESSAGES))
    {
166
        TRACE("Posting message %x to %p\n",msg, newcontext->hwndOwner);
167 168 169 170 171
        return PostMessageA(newcontext->hwndOwner, msg, wParam, lParam);
    }
    return 0;
}

172
static inline DWORD ScaleForContext(DWORD In, LONG InOrg, LONG InExt, LONG OutOrg, LONG OutExt)
173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217
{
    if (((InExt > 0 )&&(OutExt > 0)) || ((InExt<0) && (OutExt < 0)))
        return ((In - InOrg) * abs(OutExt) / abs(InExt)) + OutOrg;
    else
        return ((abs(InExt) - (In - InOrg))*abs(OutExt) / abs(InExt)) + OutOrg;
}

LPOPENCONTEXT AddPacketToContextQueue(LPWTPACKET packet, HWND hwnd)
{
    LPOPENCONTEXT ptr=NULL;

    EnterCriticalSection(&csTablet);

    ptr = gOpenContexts;
    while (ptr)
    {
        TRACE("Trying Queue %p (%p %p)\n", ptr->handle, hwnd, ptr->hwndOwner);

        if (ptr->hwndOwner == hwnd)
        {
            int tgt;
            if (!ptr->enabled)
            {
                ptr = ptr->next;
                continue;
            }

            tgt = ptr->PacketsQueued;

            packet->pkContext = ptr->handle;

            /* translate packet data to the context */

            /* Scale  as per documentation */
            packet->pkY = ScaleForContext(packet->pkY, ptr->context.lcInOrgY,
                                ptr->context.lcInExtY, ptr->context.lcOutOrgY,
                                ptr->context.lcOutExtY);

            packet->pkX = ScaleForContext(packet->pkX, ptr->context.lcInOrgX,
                                ptr->context.lcInExtX, ptr->context.lcOutOrgX,
                                ptr->context.lcOutExtX);

            /* flip the Y axis */
            if (ptr->context.lcOutExtY > 0)
                packet->pkY = ptr->context.lcOutExtY - packet->pkY;
218 219
            else if (ptr->context.lcOutExtY < 0)
                packet->pkY = abs(ptr->context.lcOutExtY + packet->pkY);
220 221 222

            DUMPPACKET(*packet);

223
            if (tgt == ptr->QueueSize)
224 225
            {
                TRACE("Queue Overflow %p\n",ptr->handle);
226
                ptr->PacketQueue[tgt-1].pkStatus |= TPS_QUEUE_ERR;
227 228 229 230
            }
            else
            {
                TRACE("Placed in queue %p index %i\n",ptr->handle,tgt);
231
                ptr->PacketQueue[tgt] = *packet;
232 233 234 235 236 237
                ptr->PacketsQueued++;

                if (ptr->ActiveCursor != packet->pkCursor)
                {
                    ptr->ActiveCursor = packet->pkCursor;
                    if (ptr->context.lcOptions & CXO_CSRMESSAGES)
238
                        TABLET_PostTabletMessage(ptr, _WT_CSRCHANGE(ptr->context.lcMsgBase),
239 240 241 242 243 244 245 246 247 248 249 250 251
                          (WPARAM)packet->pkSerialNumber, (LPARAM)ptr->handle,
                            FALSE);
                }
            }
            break;
         }
        ptr = ptr->next;
    }
    LeaveCriticalSection(&csTablet);
    TRACE("Done (%p)\n",ptr);
    return ptr;
}

252 253 254
/*
 * Flushes all packets from the queue.
 */
255
static inline void TABLET_FlushQueue(LPOPENCONTEXT context)
256 257 258 259
{
    context->PacketsQueued = 0;
}

260
static inline int CopyTabletData(LPVOID target, LPVOID src, INT size)
261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290
{
    memcpy(target,src,size);
    return(size);
}

static INT TABLET_FindPacket(LPOPENCONTEXT context, UINT wSerial,
                                LPWTPACKET *pkt)
{
    int loop;
    int index  = -1;
    for (loop = 0; loop < context->PacketsQueued; loop++)
        if (context->PacketQueue[loop].pkSerialNumber == wSerial)
        {
            index = loop;
            *pkt = &context->PacketQueue[loop];
            break;
        }

    TRACE("%i .. %i\n",context->PacketsQueued,index);

    return index;
}


static LPVOID TABLET_CopyPacketData(LPOPENCONTEXT context, LPVOID lpPkt,
                                    LPWTPACKET wtp)
{
    LPBYTE ptr;

    ptr = lpPkt;
291
    TRACE("Packet Bits %s\n",DUMPBITS(context->context.lcPktData));
292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363

    if (context->context.lcPktData & PK_CONTEXT)
        ptr+=CopyTabletData(ptr,&wtp->pkContext,sizeof(HCTX));
    if (context->context.lcPktData & PK_STATUS)
        ptr+=CopyTabletData(ptr,&wtp->pkStatus,sizeof(UINT));
    if (context->context.lcPktData & PK_TIME)
        ptr+=CopyTabletData(ptr,&wtp->pkTime,sizeof(LONG));
    if (context->context.lcPktData & PK_CHANGED)
        ptr+=CopyTabletData(ptr,&wtp->pkChanged,sizeof(WTPKT));
    if (context->context.lcPktData & PK_SERIAL_NUMBER)
        ptr+=CopyTabletData(ptr,&wtp->pkChanged,sizeof(UINT));
    if (context->context.lcPktData & PK_CURSOR)
        ptr+=CopyTabletData(ptr,&wtp->pkCursor,sizeof(UINT));
    if (context->context.lcPktData & PK_BUTTONS)
        ptr+=CopyTabletData(ptr,&wtp->pkButtons,sizeof(DWORD));
    if (context->context.lcPktData & PK_X)
        ptr+=CopyTabletData(ptr,&wtp->pkX,sizeof(DWORD));
    if (context->context.lcPktData & PK_Y)
        ptr+=CopyTabletData(ptr,&wtp->pkY,sizeof(DWORD));
    if (context->context.lcPktData & PK_Z)
        ptr+=CopyTabletData(ptr,&wtp->pkZ,sizeof(DWORD));
    if (context->context.lcPktData & PK_NORMAL_PRESSURE)
        ptr+=CopyTabletData(ptr,&wtp->pkNormalPressure,sizeof(UINT));
    if (context->context.lcPktData & PK_TANGENT_PRESSURE)
        ptr+=CopyTabletData(ptr,&wtp->pkTangentPressure,sizeof(UINT));
    if (context->context.lcPktData & PK_ORIENTATION)
        ptr+=CopyTabletData(ptr,&wtp->pkOrientation,sizeof(ORIENTATION));
    if (context->context.lcPktData & PK_ROTATION)
        ptr+=CopyTabletData(ptr,&wtp->pkRotation,sizeof(ROTATION));

    /*TRACE("Copied %i bytes\n",(INT)ptr - (INT)lpPkt); */
    return ptr;
}

static VOID TABLET_BlankPacketData(LPOPENCONTEXT context, LPVOID lpPkt, INT n)
{
    int rc = 0;

    if (context->context.lcPktData & PK_CONTEXT)
        rc +=sizeof(HCTX);
    if (context->context.lcPktData & PK_STATUS)
        rc +=sizeof(UINT);
    if (context->context.lcPktData & PK_TIME)
        rc += sizeof(LONG);
    if (context->context.lcPktData & PK_CHANGED)
        rc += sizeof(WTPKT);
    if (context->context.lcPktData & PK_SERIAL_NUMBER)
        rc += sizeof(UINT);
    if (context->context.lcPktData & PK_CURSOR)
        rc += sizeof(UINT);
    if (context->context.lcPktData & PK_BUTTONS)
        rc += sizeof(DWORD);
    if (context->context.lcPktData & PK_X)
        rc += sizeof(DWORD);
    if (context->context.lcPktData & PK_Y)
        rc += sizeof(DWORD);
    if (context->context.lcPktData & PK_Z)
        rc += sizeof(DWORD);
    if (context->context.lcPktData & PK_NORMAL_PRESSURE)
        rc += sizeof(UINT);
    if (context->context.lcPktData & PK_TANGENT_PRESSURE)
        rc += sizeof(UINT);
    if (context->context.lcPktData & PK_ORIENTATION)
        rc += sizeof(ORIENTATION);
    if (context->context.lcPktData & PK_ROTATION)
        rc += sizeof(ROTATION);

    rc *= n;
    memset(lpPkt,0,rc);
}


364
static UINT WTInfoT(UINT wCategory, UINT nIndex, LPVOID lpOutput, BOOL bUnicode)
365
{
366
    UINT result;
367 368

    TRACE("(%d, %d, %p, %d)\n", wCategory, nIndex, lpOutput, bUnicode);
369 370
    if (gLoaded == FALSE)
         LoadTablet();
371

372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390
    /*
     *  Handle system extents here, as we can use user32.dll code to set them.
     */
    if(wCategory == WTI_DEFSYSCTX)
    {
        switch(nIndex)
        {
            case CTX_SYSEXTX:
                if(lpOutput != NULL)
                    *(LONG*)lpOutput = GetSystemMetrics(SM_CXSCREEN);
                return sizeof(LONG);
            case CTX_SYSEXTY:
                if(lpOutput != NULL)
                    *(LONG*)lpOutput = GetSystemMetrics(SM_CYSCREEN);
                return sizeof(LONG);
           /* No action, delegate to X11Drv */
        }
    }

391 392 393 394 395 396
    if (is_logcontext_category(wCategory) && nIndex == 0)
    {
        if (lpOutput)
        {
            LOGCONTEXTW buf;
            pWTInfoW(wCategory, nIndex, &buf);
397

398 399 400 401 402 403 404 405 406 407 408 409 410
            /*  Handle system extents here, as we can use user32.dll code to set them */
            if(wCategory == WTI_DEFSYSCTX && nIndex == 0)
            {
                buf.lcSysExtX = GetSystemMetrics(SM_CXSCREEN);
                buf.lcSysExtY = GetSystemMetrics(SM_CYSCREEN);
            }

            if (bUnicode)
                memcpy(lpOutput, &buf, sizeof(buf));
            else
                LOGCONTEXTWtoA(&buf, lpOutput);
        }

411
        result = bUnicode ? sizeof(LOGCONTEXTW) : sizeof(LOGCONTEXTA);
412 413
    }
    else if (is_string_field(wCategory, nIndex) && !bUnicode)
414
    {
415 416 417 418 419
        int size = pWTInfoW(wCategory, nIndex, NULL);
        WCHAR *buf = HeapAlloc(GetProcessHeap(), 0, size);
        pWTInfoW(wCategory, nIndex, buf);
        result = WideCharToMultiByte(CP_ACP, 0, buf, size/sizeof(WCHAR), lpOutput, lpOutput ? 2*size : 0, NULL, NULL);
        HeapFree(GetProcessHeap(), 0, buf);
420
    }
421 422 423
    else
        result =  pWTInfoW(wCategory, nIndex, lpOutput);

424
    TRACE("returns %d\n", result);
425
    return result;
426 427 428
}

/***********************************************************************
429
 *		WTInfoA (WINTAB32.20)
430
 */
431
UINT WINAPI WTInfoA(UINT wCategory, UINT nIndex, LPVOID lpOutput)
432
{
433 434
    return WTInfoT(wCategory, nIndex, lpOutput, FALSE);
}
435 436


437 438 439 440 441 442
/***********************************************************************
 *		WTInfoW (WINTAB32.1020)
 */
UINT WINAPI WTInfoW(UINT wCategory, UINT nIndex, LPVOID lpOutput)
{
    return WTInfoT(wCategory, nIndex, lpOutput, TRUE);
443 444 445
}

/***********************************************************************
446
 *		WTOpenW (WINTAB32.2021)
447
 */
448
HCTX WINAPI WTOpenW(HWND hWnd, LPLOGCONTEXTW lpLogCtx, BOOL fEnable)
449
{
450
    LPOPENCONTEXT newcontext;
451

452
    TRACE("hWnd=%p, lpLogCtx=%p, fEnable=%u\n", hWnd, lpLogCtx, fEnable);
453
    DUMPCONTEXT(*lpLogCtx);
454

455
    newcontext = HeapAlloc(GetProcessHeap(), 0 , sizeof(OPENCONTEXT));
456
    newcontext->context = *lpLogCtx;
457 458 459 460 461 462 463 464 465 466 467 468 469 470
    newcontext->hwndOwner = hWnd;
    newcontext->ActiveCursor = -1;
    newcontext->QueueSize = 10;
    newcontext->PacketsQueued = 0;
    newcontext->PacketQueue=HeapAlloc(GetProcessHeap(),0,sizeof(WTPACKET)*10);

    EnterCriticalSection(&csTablet);
    newcontext->handle = gTopContext++;
    newcontext->next = gOpenContexts;
    gOpenContexts = newcontext;
    LeaveCriticalSection(&csTablet);

    pAttachEventQueueToTablet(hWnd);

471
    TABLET_PostTabletMessage(newcontext, _WT_CTXOPEN(newcontext->context.lcMsgBase), (WPARAM)newcontext->handle,
472 473
                      newcontext->context.lcStatus, TRUE);

474 475 476 477 478 479 480 481 482 483 484
    if (fEnable)
    {
        newcontext->enabled = TRUE;
        /* TODO: Add to top of overlap order */
        newcontext->context.lcStatus = CXS_ONTOP;
    }
    else
    {
        newcontext->enabled = FALSE;
        newcontext->context.lcStatus = CXS_DISABLED;
    }
485

486
    TABLET_PostTabletMessage(newcontext, _WT_CTXOVERLAP(newcontext->context.lcMsgBase),
487 488 489 490
                            (WPARAM)newcontext->handle,
                            newcontext->context.lcStatus, TRUE);

    return newcontext->handle;
491 492 493
}

/***********************************************************************
494
 *		WTOpenA (WINTAB32.21)
495
 */
496
HCTX WINAPI WTOpenA(HWND hWnd, LPLOGCONTEXTA lpLogCtx, BOOL fEnable)
497
{
498
    LOGCONTEXTW logCtxW;
499

500 501
    LOGCONTEXTAtoW(lpLogCtx, &logCtxW);
    return WTOpenW(hWnd, &logCtxW, fEnable);
502 503 504 505 506 507 508
}

/***********************************************************************
 *		WTClose (WINTAB32.22)
 */
BOOL WINAPI WTClose(HCTX hCtx)
{
509
    LPOPENCONTEXT context,ptr;
510

511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534
    TRACE("(%p)\n", hCtx);

    EnterCriticalSection(&csTablet);

    ptr = context = gOpenContexts;

    while (context && (context->handle != hCtx))
    {
        ptr = context;
        context = context->next;
    }
    if (!context)
    {
        LeaveCriticalSection(&csTablet);
        return TRUE;
    }

    if (context == gOpenContexts)
        gOpenContexts = context->next;
    else
        ptr->next = context->next;

    LeaveCriticalSection(&csTablet);

535
    TABLET_PostTabletMessage(context, _WT_CTXCLOSE(context->context.lcMsgBase), (WPARAM)context->handle,
536 537 538 539
                      context->context.lcStatus,TRUE);

    HeapFree(GetProcessHeap(),0,context->PacketQueue);
    HeapFree(GetProcessHeap(),0,context);
540 541 542 543 544 545 546 547 548

    return TRUE;
}

/***********************************************************************
 *		WTPacketsGet (WINTAB32.23)
 */
int WINAPI WTPacketsGet(HCTX hCtx, int cMaxPkts, LPVOID lpPkts)
{
549 550 551
    int limit;
    LPOPENCONTEXT context;
    LPVOID ptr = lpPkts;
552

553
    TRACE("(%p, %d, %p)\n", hCtx, cMaxPkts, lpPkts);
554

555 556
    if (!hCtx)
        return 0;
557 558 559 560

    EnterCriticalSection(&csTablet);

    context = TABLET_FindOpenContext(hCtx);
561 562 563

    if (lpPkts != NULL)
        TABLET_BlankPacketData(context,lpPkts,cMaxPkts);
564 565 566 567 568 569 570

    if (context->PacketsQueued == 0)
    {
        LeaveCriticalSection(&csTablet);
        return 0;
    }

571 572 573 574 575 576 577 578 579
    limit = min(cMaxPkts,context->PacketsQueued);

    if(ptr != NULL)
    {
        int i = 0;
        for(i = 0; i < limit; i++)
            ptr=TABLET_CopyPacketData(context ,ptr, &context->PacketQueue[i]);
    }

580 581 582

    if (limit < context->PacketsQueued)
    {
583 584
        memmove(context->PacketQueue, &context->PacketQueue[limit],
            (context->PacketsQueued - (limit))*sizeof(WTPACKET));
585 586 587 588 589 590 591
    }
    context->PacketsQueued -= limit;
    LeaveCriticalSection(&csTablet);

    TRACE("Copied %i packets\n",limit);

    return limit;
592 593 594 595 596 597 598
}

/***********************************************************************
 *		WTPacket (WINTAB32.24)
 */
BOOL WINAPI WTPacket(HCTX hCtx, UINT wSerial, LPVOID lpPkt)
{
599 600
    int rc = 0;
    LPOPENCONTEXT context;
601
    LPWTPACKET wtp = NULL;
602

603
    TRACE("(%p, %d, %p)\n", hCtx, wSerial, lpPkt);
604

605 606
    if (!hCtx)
        return 0;
607 608 609 610 611 612 613 614 615 616 617 618 619 620

    EnterCriticalSection(&csTablet);

    context = TABLET_FindOpenContext(hCtx);

    rc = TABLET_FindPacket(context ,wSerial, &wtp);

    if (rc >= 0)
    {
        if (lpPkt)
           TABLET_CopyPacketData(context ,lpPkt, wtp);

        if ((rc+1) < context->QueueSize)
        {
621 622
            memmove(context->PacketQueue, &context->PacketQueue[rc+1],
                (context->PacketsQueued - (rc+1))*sizeof(WTPACKET));
623 624 625 626 627 628 629
        }
        context->PacketsQueued -= (rc+1);
    }
    LeaveCriticalSection(&csTablet);

    TRACE("Returning %i\n",rc+1);
    return rc+1;
630 631 632 633 634 635 636
}

/***********************************************************************
 *		WTEnable (WINTAB32.40)
 */
BOOL WINAPI WTEnable(HCTX hCtx, BOOL fEnable)
{
637
    LPOPENCONTEXT context;
638

639
    TRACE("hCtx=%p, fEnable=%u\n", hCtx, fEnable);
640

641
    if (!hCtx) return FALSE;
642 643 644

    EnterCriticalSection(&csTablet);
    context = TABLET_FindOpenContext(hCtx);
645 646 647 648 649 650
    /* if we want to enable and it is not enabled then */
    if(fEnable && !context->enabled)
    {
        context->enabled = TRUE;
        /* TODO: Add to top of overlap order */
        context->context.lcStatus = CXS_ONTOP;
651 652 653 654
        TABLET_PostTabletMessage(context,
            _WT_CTXOVERLAP(context->context.lcMsgBase),
            (WPARAM)context->handle,
            context->context.lcStatus, TRUE);
655 656 657 658 659 660 661
    }
    /* if we want to disable and it is not disabled then */
    else if (!fEnable && context->enabled)
    {
        context->enabled = FALSE;
        /* TODO: Remove from overlap order?? needs a test */
        context->context.lcStatus = CXS_DISABLED;
662
        TABLET_FlushQueue(context);
663 664 665 666
        TABLET_PostTabletMessage(context,
            _WT_CTXOVERLAP(context->context.lcMsgBase),
            (WPARAM)context->handle,
            context->context.lcStatus, TRUE);
667
    }
668 669 670
    LeaveCriticalSection(&csTablet);

    return TRUE;
671 672 673 674
}

/***********************************************************************
 *		WTOverlap (WINTAB32.41)
675 676
 *
 *		Move context to top or bottom of overlap order
677 678 679
 */
BOOL WINAPI WTOverlap(HCTX hCtx, BOOL fToTop)
{
680 681 682 683 684 685 686 687
    LPOPENCONTEXT context;

    TRACE("hCtx=%p, fToTop=%u\n", hCtx, fToTop);

    if (!hCtx) return FALSE;

    EnterCriticalSection(&csTablet);
    context = TABLET_FindOpenContext(hCtx);
688 689 690 691 692 693
    if (!context)
    {
        LeaveCriticalSection(&csTablet);
        return FALSE;
    }

694 695
    /* if we want to send to top and it's not already there */
    if (fToTop && context->context.lcStatus != CXS_ONTOP)
696 697 698 699
    {
        /* TODO: Move context to top of overlap order */
        FIXME("Not moving context to top of overlap order\n");
        context->context.lcStatus = CXS_ONTOP;
700 701 702 703
        TABLET_PostTabletMessage(context,
            _WT_CTXOVERLAP(context->context.lcMsgBase),
            (WPARAM)context->handle,
            context->context.lcStatus, TRUE);
704
    }
705
    else if (!fToTop)
706 707 708 709
    {
        /* TODO: Move context to bottom of overlap order */
        FIXME("Not moving context to bottom of overlap order\n");
        context->context.lcStatus = CXS_OBSCURED;
710 711 712 713
        TABLET_PostTabletMessage(context,
            _WT_CTXOVERLAP(context->context.lcMsgBase),
            (WPARAM)context->handle,
            context->context.lcStatus, TRUE);
714 715
    }
    LeaveCriticalSection(&csTablet);
716

717
    return TRUE;
718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736
}

/***********************************************************************
 *		WTConfig (WINTAB32.61)
 */
BOOL WINAPI WTConfig(HCTX hCtx, HWND hWnd)
{
    FIXME("(%p, %p): stub\n", hCtx, hWnd);

    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);

    return FALSE;
}

/***********************************************************************
 *		WTGetA (WINTAB32.61)
 */
BOOL WINAPI WTGetA(HCTX hCtx, LPLOGCONTEXTA lpLogCtx)
{
737
    LPOPENCONTEXT context;
738

739
    TRACE("(%p, %p)\n", hCtx, lpLogCtx);
740

741 742 743 744
    if (!hCtx) return 0;

    EnterCriticalSection(&csTablet);
    context = TABLET_FindOpenContext(hCtx);
745
    LOGCONTEXTWtoA(&context->context, lpLogCtx);
746 747 748
    LeaveCriticalSection(&csTablet);

    return TRUE;
749 750 751 752 753 754 755
}

/***********************************************************************
 *		WTGetW (WINTAB32.1061)
 */
BOOL WINAPI WTGetW(HCTX hCtx, LPLOGCONTEXTW lpLogCtx)
{
756
    LPOPENCONTEXT context;
757

758
    TRACE("(%p, %p)\n", hCtx, lpLogCtx);
759

760 761 762 763 764 765 766 767
    if (!hCtx) return 0;

    EnterCriticalSection(&csTablet);
    context = TABLET_FindOpenContext(hCtx);
    memmove(lpLogCtx,&context->context,sizeof(LOGCONTEXTW));
    LeaveCriticalSection(&csTablet);

    return TRUE;
768 769 770 771 772 773 774
}

/***********************************************************************
 *		WTSetA (WINTAB32.62)
 */
BOOL WINAPI WTSetA(HCTX hCtx, LPLOGCONTEXTA lpLogCtx)
{
775
    LPOPENCONTEXT context;
776

777
    TRACE("hCtx=%p, lpLogCtx=%p\n", hCtx, lpLogCtx);
778

779 780 781 782 783 784 785
    if (!hCtx || !lpLogCtx) return FALSE;

    /* TODO: if cur process not owner of hCtx only modify
     * attribs not locked by owner */

    EnterCriticalSection(&csTablet);
    context = TABLET_FindOpenContext(hCtx);
786 787 788 789 790 791
    if (!context)
    {
        LeaveCriticalSection(&csTablet);
        return FALSE;
    }

792 793 794 795
    LOGCONTEXTAtoW(lpLogCtx, &context->context);
    LeaveCriticalSection(&csTablet);

    return TRUE;
796 797 798 799 800 801 802
}

/***********************************************************************
 *		WTSetW (WINTAB32.1062)
 */
BOOL WINAPI WTSetW(HCTX hCtx, LPLOGCONTEXTW lpLogCtx)
{
803
    LPOPENCONTEXT context;
804

805
    TRACE("hCtx=%p, lpLogCtx=%p\n", hCtx, lpLogCtx);
806

807 808 809 810 811 812 813
    if (!hCtx || !lpLogCtx) return FALSE;

    /* TODO: if cur process not hCtx owner only modify
     * attribs not locked by owner */

    EnterCriticalSection(&csTablet);
    context = TABLET_FindOpenContext(hCtx);
814 815 816 817 818 819
    if (!context)
    {
        LeaveCriticalSection(&csTablet);
        return FALSE;
    }

820 821 822 823
    memmove(&context->context, lpLogCtx, sizeof(LOGCONTEXTW));
    LeaveCriticalSection(&csTablet);

    return TRUE;
824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878
}

/***********************************************************************
 *		WTExtGet (WINTAB32.63)
 */
BOOL WINAPI WTExtGet(HCTX hCtx, UINT wExt, LPVOID lpData)
{
    FIXME("(%p, %u, %p): stub\n", hCtx, wExt, lpData);

    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);

    return FALSE;
}

/***********************************************************************
 *		WTExtSet (WINTAB32.64)
 */
BOOL WINAPI WTExtSet(HCTX hCtx, UINT wExt, LPVOID lpData)
{
    FIXME("(%p, %u, %p): stub\n", hCtx, wExt, lpData);

    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);

    return FALSE;
}

/***********************************************************************
 *		WTSave (WINTAB32.65)
 */
BOOL WINAPI WTSave(HCTX hCtx, LPVOID lpSaveInfo)
{
    FIXME("(%p, %p): stub\n", hCtx, lpSaveInfo);

    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);

    return FALSE;
}

/***********************************************************************
 *		WTRestore (WINTAB32.66)
 */
HCTX WINAPI WTRestore(HWND hWnd, LPVOID lpSaveInfo, BOOL fEnable)
{
    FIXME("(%p, %p, %u): stub\n", hWnd, lpSaveInfo, fEnable);

    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);

    return 0;
}

/***********************************************************************
 *		WTPacketsPeek (WINTAB32.80)
 */
int WINAPI WTPacketsPeek(HCTX hCtx, int cMaxPkts, LPVOID lpPkts)
{
879 880 881
    int limit;
    LPOPENCONTEXT context;
    LPVOID ptr = lpPkts;
882

883
    TRACE("(%p, %d, %p)\n", hCtx, cMaxPkts, lpPkts);
884

885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902
    if (!hCtx || !lpPkts) return 0;

    EnterCriticalSection(&csTablet);

    context = TABLET_FindOpenContext(hCtx);

    if (context->PacketsQueued == 0)
    {
        LeaveCriticalSection(&csTablet);
        return 0;
    }

    for (limit = 0; limit < cMaxPkts && limit < context->PacketsQueued; limit++)
        ptr = TABLET_CopyPacketData(context ,ptr, &context->PacketQueue[limit]);

    LeaveCriticalSection(&csTablet);
    TRACE("Copied %i packets\n",limit);
    return limit;
903 904 905 906 907 908 909 910
}

/***********************************************************************
 *		WTDataGet (WINTAB32.81)
 */
int WINAPI WTDataGet(HCTX hCtx, UINT wBegin, UINT wEnd,
		     int cMaxPkts, LPVOID lpPkts, LPINT lpNPkts)
{
911 912
    LPOPENCONTEXT context;
    LPVOID ptr = lpPkts;
913 914 915
    INT bgn = 0;
    INT end = 0;
    INT num = 0;
916 917

    TRACE("(%p, %u, %u, %d, %p, %p)\n",
918 919
	  hCtx, wBegin, wEnd, cMaxPkts, lpPkts, lpNPkts);

920
    if (!hCtx) return 0;
921

922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940
    EnterCriticalSection(&csTablet);

    context = TABLET_FindOpenContext(hCtx);

    if (context->PacketsQueued == 0)
    {
        LeaveCriticalSection(&csTablet);
        return 0;
    }

    while (bgn < context->PacketsQueued &&
           context->PacketQueue[bgn].pkSerialNumber != wBegin)
        bgn++;

    end = bgn;
    while (end < context->PacketsQueued &&
           context->PacketQueue[end].pkSerialNumber != wEnd)
        end++;

941
    if ((bgn == end) && (end == context->PacketsQueued))
942 943 944 945 946 947
    {
        LeaveCriticalSection(&csTablet);
        return 0;
    }

    for (num = bgn; num <= end; num++)
948
        ptr = TABLET_CopyPacketData(context ,ptr, &context->PacketQueue[num]);
949 950 951

    /* remove read packets */
    if ((end+1) < context->PacketsQueued)
952 953
        memmove( &context->PacketQueue[bgn], &context->PacketQueue[end+1],
                (context->PacketsQueued - (end+1)) * sizeof (WTPACKET));
954 955 956 957 958 959 960

    context->PacketsQueued -= ((end-bgn)+1);
    *lpNPkts = ((end-bgn)+1);

    LeaveCriticalSection(&csTablet);
    TRACE("Copied %i packets\n",*lpNPkts);
    return (end - bgn)+1;
961 962 963 964 965 966 967 968
}

/***********************************************************************
 *		WTDataPeek (WINTAB32.82)
 */
int WINAPI WTDataPeek(HCTX hCtx, UINT wBegin, UINT wEnd,
		      int cMaxPkts, LPVOID lpPkts, LPINT lpNPkts)
{
969 970
    LPOPENCONTEXT context;
    LPVOID ptr = lpPkts;
971 972 973
    INT bgn = 0;
    INT end = 0;
    INT num = 0;
974 975

    TRACE("(%p, %u, %u, %d, %p, %p)\n",
976 977
	  hCtx, wBegin, wEnd, cMaxPkts, lpPkts, lpNPkts);

978
    if (!hCtx || !lpPkts) return 0;
979

980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000
    EnterCriticalSection(&csTablet);

    context = TABLET_FindOpenContext(hCtx);

    if (context->PacketsQueued == 0)
    {
        LeaveCriticalSection(&csTablet);
        return 0;
    }

    while (bgn < context->PacketsQueued &&
           context->PacketQueue[bgn].pkSerialNumber != wBegin)
        bgn++;

    end = bgn;
    while (end < context->PacketsQueued &&
           context->PacketQueue[end].pkSerialNumber != wEnd)
        end++;

    if (bgn == context->PacketsQueued ||  end == context->PacketsQueued)
    {
1001
        TRACE("%i %i %i\n", bgn, end, context->PacketsQueued);
1002 1003 1004 1005 1006
        LeaveCriticalSection(&csTablet);
        return 0;
    }

    for (num = bgn; num <= end; num++)
1007
        ptr = TABLET_CopyPacketData(context ,ptr, &context->PacketQueue[num]);
1008 1009 1010 1011 1012 1013

    *lpNPkts = ((end-bgn)+1);
    LeaveCriticalSection(&csTablet);

    TRACE("Copied %i packets\n",*lpNPkts);
    return (end - bgn)+1;
1014 1015 1016 1017 1018 1019 1020
}

/***********************************************************************
 *		WTQueuePacketsEx (WINTAB32.200)
 */
BOOL WINAPI WTQueuePacketsEx(HCTX hCtx, UINT *lpOld, UINT *lpNew)
{
1021
    LPOPENCONTEXT context;
1022

1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042
    TRACE("(%p, %p, %p)\n", hCtx, lpOld, lpNew);

    if (!hCtx) return 0;

    EnterCriticalSection(&csTablet);

    context = TABLET_FindOpenContext(hCtx);

    if (context->PacketsQueued)
    {
        *lpOld = context->PacketQueue[0].pkSerialNumber;
        *lpNew = context->PacketQueue[context->PacketsQueued-1].pkSerialNumber;
    }
    else
    {
        TRACE("No packets\n");
        LeaveCriticalSection(&csTablet);
        return FALSE;
    }
    LeaveCriticalSection(&csTablet);
1043 1044 1045 1046 1047 1048 1049 1050 1051

    return TRUE;
}

/***********************************************************************
 *		WTQueueSizeGet (WINTAB32.84)
 */
int WINAPI WTQueueSizeGet(HCTX hCtx)
{
1052 1053
    LPOPENCONTEXT context;
    TRACE("(%p)\n", hCtx);
1054

1055
    if (!hCtx) return 0;
1056

1057 1058 1059 1060
    EnterCriticalSection(&csTablet);
    context = TABLET_FindOpenContext(hCtx);
    LeaveCriticalSection(&csTablet);
    return context->QueueSize;
1061 1062 1063 1064 1065 1066 1067
}

/***********************************************************************
 *		WTQueueSizeSet (WINTAB32.85)
 */
BOOL WINAPI WTQueueSizeSet(HCTX hCtx, int nPkts)
{
1068
    LPOPENCONTEXT context;
1069

1070
    TRACE("(%p, %d)\n", hCtx, nPkts);
1071

1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084
    if (!hCtx) return 0;

    EnterCriticalSection(&csTablet);

    context = TABLET_FindOpenContext(hCtx);

    context->PacketQueue = HeapReAlloc(GetProcessHeap(), 0,
                        context->PacketQueue, sizeof(WTPACKET)*nPkts);

    context->QueueSize = nPkts;
    LeaveCriticalSection(&csTablet);

    return nPkts;
1085
}