dlls/sane.ds/ui.c

   1 /*
   2 * TWAIN32 Options UI
   3 *
   4 * Copyright 2006 CodeWeavers, Aric Stewart
   5 *
   6 * This library is free software; you can redistribute it and/or
   7 * modify it under the terms of the GNU Lesser General Public
   8 * License as published by the Free Software Foundation; either
   9 * version 2.1 of the License, or (at your option) any later version.
  10 *
  11 * This library is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 * Lesser General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU Lesser General Public
  17 * License along with this library; if not, write to the Free Software
  18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19 */
  20
  21 #include "config.h"
  22
  23 #include <stdlib.h>
  24 #include <stdarg.h>
  25 #include <stdio.h>
  26
  27 #define NONAMELESSUNION
  28 #define NONAMELESSSTRUCT
  29 #include "windef.h"
  30 #include "winbase.h"
  31 #include "winuser.h"
  32 #include "winnls.h"
  33 #include "wingdi.h"
  34 #include "prsht.h"
  35 #include "twain.h"
  36 #include "sane_i.h"
  37 #include "wine/debug.h"
  38 #include "resource.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(twain);
  41
  42 #ifdef HAVE_SANE
  43
  44 #define ID_BASE 0x100
  45 #define ID_EDIT_BASE 0x1000
  46 #define ID_STATIC_BASE 0x2000
  47
  48 static INT_PTR CALLBACK DialogProc (HWND , UINT , WPARAM , LPARAM );
  49 static INT CALLBACK PropSheetProc(HWND, UINT,LPARAM);
  50
  51 static int create_leading_static(HDC hdc, LPCSTR text,
  52         LPDLGITEMTEMPLATEW* template_out, int y, int id)
  53 {
  54     LPDLGITEMTEMPLATEW tpl =  NULL;
  55     INT len;
  56     SIZE size;
  57     LPBYTE ptr;
  58     LONG base;
  59
  60     *template_out = NULL;
  61
  62     if (!text)
  63         return 0;
  64
  65     base = GetDialogBaseUnits();
  66
  67     len = MultiByteToWideChar(CP_ACP,0,text,-1,NULL,0);
  68     len *= sizeof(WCHAR);
  69     len += sizeof(DLGITEMTEMPLATE);
  70     len += 3*sizeof(WORD);
  71
  72     tpl = HeapAlloc(GetProcessHeap(),0,len);
  73     tpl->style=WS_VISIBLE;
  74     tpl->dwExtendedStyle = 0;
  75     tpl->x = 4;
  76     tpl->y = y;
  77     tpl->id = ID_BASE;
  78
  79     GetTextExtentPoint32A(hdc,text,lstrlenA(text),&size);
  80
  81     tpl->cx =  MulDiv(size.cx,4,LOWORD(base));
  82     tpl->cy =  MulDiv(size.cy,8,HIWORD(base)) * 2;
  83     ptr = (LPBYTE)tpl + sizeof(DLGITEMTEMPLATE);
  84     *(LPWORD)ptr = 0xffff;
  85     ptr += sizeof(WORD);
  86     *(LPWORD)ptr = 0x0082;
  87     ptr += sizeof(WORD);
  88     ptr += MultiByteToWideChar(CP_ACP,0,text,-1,(LPWSTR)ptr,len) * sizeof(WCHAR);
  89     *(LPWORD)ptr = 0x0000;
  90
  91     *template_out = tpl;
  92     return len;
  93 }
  94
  95 static int create_trailing_edit(HDC hdc, LPDLGITEMTEMPLATEW* template_out, int id,
  96         int y, LPCSTR text,BOOL is_int)
  97 {
  98     LPDLGITEMTEMPLATEW tpl =  NULL;
  99     INT len;
 100     LPBYTE ptr;
 101     SIZE size;
 102     LONG base;
 103     static const char int_base[] = "0000 xxx";
 104     static const char float_base[] = "0000.0000 xxx";
 105
 106     base = GetDialogBaseUnits();
 107
 108     len = MultiByteToWideChar(CP_ACP,0,text,-1,NULL,0);
 109     len *= sizeof(WCHAR);
 110     len += sizeof(DLGITEMTEMPLATE);
 111     len += 3*sizeof(WORD);
 112
 113     tpl = HeapAlloc(GetProcessHeap(),0,len);
 114     tpl->style=WS_VISIBLE|ES_READONLY|WS_BORDER;
 115     tpl->dwExtendedStyle = 0;
 116     tpl->x = 1;
 117     tpl->y = y;
 118     tpl->id = id;
 119
 120     if (is_int)
 121         GetTextExtentPoint32A(hdc,int_base,lstrlenA(int_base),&size);
 122     else
 123         GetTextExtentPoint32A(hdc,float_base,lstrlenA(float_base),&size);
 124
 125     tpl->cx =  MulDiv(size.cx*2,4,LOWORD(base));
 126     tpl->cy =  MulDiv(size.cy,8,HIWORD(base)) * 2;
 127
 128     ptr = (LPBYTE)tpl + sizeof(DLGITEMTEMPLATE);
 129     *(LPWORD)ptr = 0xffff;
 130     ptr += sizeof(WORD);
 131     *(LPWORD)ptr = 0x0081;
 132     ptr += sizeof(WORD);
 133     ptr += MultiByteToWideChar(CP_ACP,0,text,-1,(LPWSTR)ptr,len) * sizeof(WCHAR);
 134     *(LPWORD)ptr = 0x0000;
 135
 136     *template_out = tpl;
 137     return len;
 138 }
 139
 140
 141 static int create_item(HDC hdc, const SANE_Option_Descriptor *opt,
 142         INT id, LPDLGITEMTEMPLATEW *template_out, int y, int *cx, int* count)
 143 {
 144     LPDLGITEMTEMPLATEW tpl = NULL,rc = NULL;
 145     WORD class = 0xffff;
 146     DWORD styles = WS_VISIBLE;
 147     LPBYTE ptr = NULL;
 148     LPDLGITEMTEMPLATEW lead_static = NULL;
 149     LPDLGITEMTEMPLATEW trail_edit = NULL;
 150     DWORD leading_len = 0;
 151     DWORD trail_len = 0;
 152     DWORD local_len = 0;
 153     LPCSTR title = NULL;
 154     CHAR buffer[255];
 155     int padding = 0;
 156     int padding2 = 0;
 157     int base_x = 0;
 158     LONG base;
 159     int ctl_cx = 0;
 160     SIZE size;
 161
 162     GetTextExtentPoint32A(hdc,"X",1,&size);
 163     base = GetDialogBaseUnits();
 164     base_x = MulDiv(size.cx,4,LOWORD(base));
 165
 166     if (opt->type == SANE_TYPE_BOOL)
 167     {
 168         class = 0x0080; /* Button */
 169         styles |= BS_AUTOCHECKBOX;
 170         local_len += MultiByteToWideChar(CP_ACP,0,opt->title,-1,NULL,0);
 171         local_len *= sizeof(WCHAR);
 172         title = opt->title;
 173     }
 174     else if (opt->type == SANE_TYPE_INT)
 175     {
 176         SANE_Int i;
 177
 178         sane_control_option(activeDS.deviceHandle, id-ID_BASE,
 179                 SANE_ACTION_GET_VALUE, &i,NULL);
 180
 181         sprintf(buffer,"%i",i);
 182
 183         if (opt->constraint_type == SANE_CONSTRAINT_NONE)
 184         {
 185             class = 0x0081; /* Edit*/
 186             styles |= ES_NUMBER;
 187             title = buffer;
 188             local_len += MultiByteToWideChar(CP_ACP,0,title,-1,NULL,0);
 189             local_len *= sizeof(WCHAR);
 190         }
 191         else if (opt->constraint_type == SANE_CONSTRAINT_RANGE)
 192         {
 193             class = 0x0084; /* scroll */
 194             ctl_cx = 10 * base_x;
 195             trail_len += create_trailing_edit(hdc, &trail_edit, id +
 196                     ID_EDIT_BASE, y,buffer,TRUE);
 197         }
 198         else
 199         {
 200             class= 0x0085; /* Combo */
 201             ctl_cx = 10 * base_x;
 202             styles |= CBS_DROPDOWNLIST;
 203         }
 204         leading_len += create_leading_static(hdc, opt->title, &lead_static, y,
 205                 id+ID_STATIC_BASE);
 206     }
 207     else if (opt->type == SANE_TYPE_FIXED)
 208     {
 209         SANE_Fixed *i;
 210         double dd;
 211
 212         i = HeapAlloc(GetProcessHeap(),0,opt->size*sizeof(SANE_Word));
 213
 214         sane_control_option(activeDS.deviceHandle, id-ID_BASE,
 215                 SANE_ACTION_GET_VALUE, i, NULL);
 216
 217         dd = SANE_UNFIX(*i);
 218         sprintf(buffer,"%f",dd);
 219         HeapFree(GetProcessHeap(),0,i);
 220
 221         if (opt->constraint_type == SANE_CONSTRAINT_NONE)
 222         {
 223             class = 0x0081; /* Edit */
 224             title = buffer;
 225             local_len += MultiByteToWideChar(CP_ACP,0,title,-1,NULL,0);
 226             local_len *= sizeof(WCHAR);
 227         }
 228         else if (opt->constraint_type == SANE_CONSTRAINT_RANGE)
 229         {
 230             class= 0x0084; /* scroll */
 231             ctl_cx = 10 * base_x;
 232             trail_len += create_trailing_edit(hdc, &trail_edit, id +
 233                     ID_EDIT_BASE, y,buffer,FALSE);
 234         }
 235         else
 236         {
 237             class= 0x0085; /* Combo */
 238             ctl_cx = 10 * base_x;
 239             styles |= CBS_DROPDOWNLIST;
 240         }
 241         leading_len += create_leading_static(hdc, opt->title, &lead_static, y,
 242                 id+ID_STATIC_BASE);
 243     }
 244     else if (opt->type == SANE_TYPE_STRING)
 245     {
 246         if (opt->constraint_type == SANE_CONSTRAINT_NONE)
 247         {
 248             class = 0x0081; /* Edit*/
 249         }
 250         else
 251         {
 252             class= 0x0085; /* Combo */
 253             ctl_cx = opt->size * base_x;
 254             styles |= CBS_DROPDOWNLIST;
 255         }
 256         leading_len += create_leading_static(hdc, opt->title, &lead_static, y,
 257                 id+ID_STATIC_BASE);
 258         sane_control_option(activeDS.deviceHandle, id-ID_BASE,
 259                 SANE_ACTION_GET_VALUE, buffer,NULL);
 260
 261         title = buffer;
 262         local_len += MultiByteToWideChar(CP_ACP,0,title,-1,NULL,0);
 263         local_len *= sizeof(WCHAR);
 264     }
 265     else if (opt->type == SANE_TYPE_BUTTON)
 266     {
 267         class = 0x0080; /* Button */
 268         local_len += MultiByteToWideChar(CP_ACP,0,opt->title,-1,NULL,0);
 269         local_len *= sizeof(WCHAR);
 270         title = opt->title;
 271     }
 272     else if (opt->type == SANE_TYPE_GROUP)
 273     {
 274         class = 0x0080; /* Button */
 275         styles |= BS_GROUPBOX;
 276         local_len += MultiByteToWideChar(CP_ACP,0,opt->title,-1,NULL,0);
 277         local_len *= sizeof(WCHAR);
 278         title = opt->title;
 279     }
 280
 281     local_len += sizeof(DLGITEMTEMPLATE);
 282     if (title)
 283         local_len += 3*sizeof(WORD);
 284     else
 285         local_len += 4*sizeof(WORD);
 286
 287     if (lead_static)
 288     {
 289         padding = leading_len % sizeof(DWORD);
 290         rc = HeapReAlloc(GetProcessHeap(),0,lead_static,leading_len+local_len + padding);
 291         tpl = (LPDLGITEMTEMPLATEW)((LPBYTE)rc + leading_len + padding);
 292     }
 293     else
 294         rc = tpl = HeapAlloc(GetProcessHeap(),0,local_len);
 295
 296     tpl->style=styles;
 297     tpl->dwExtendedStyle = 0;
 298     if (lead_static)
 299         tpl->x = lead_static->x + lead_static->cx + 1;
 300     else if (opt->type == SANE_TYPE_GROUP)
 301         tpl->x = 2;
 302     else
 303         tpl->x = 4;
 304     tpl->y = y;
 305     tpl->id = id;
 306
 307     if (title)
 308     {
 309         GetTextExtentPoint32A(hdc,title,lstrlenA(title),&size);
 310         tpl->cx = size.cx;
 311         tpl->cy = size.cy;
 312     }
 313     else
 314     {
 315         if (lead_static)
 316             tpl->cy = lead_static->cy;
 317         else
 318             tpl->cy = 15;
 319
 320         if (!ctl_cx)
 321             ctl_cx = 15;
 322
 323         tpl->cx = ctl_cx;
 324     }
 325     ptr = (LPBYTE)tpl + sizeof(DLGITEMTEMPLATE);
 326     *(LPWORD)ptr = 0xffff;
 327     ptr += sizeof(WORD);
 328     *(LPWORD)ptr = class;
 329     ptr += sizeof(WORD);
 330     if (title)
 331     {
 332         ptr += MultiByteToWideChar(CP_ACP,0,title,-1,(LPWSTR)ptr,local_len) * sizeof(WCHAR);
 333     }
 334     else
 335     {
 336         *(LPWORD)ptr = 0x0000;
 337         ptr += sizeof(WORD);
 338     }
 339
 340     *((LPWORD)ptr) = 0x0000;
 341     ptr += sizeof(WORD);
 342
 343     if (trail_edit)
 344     {
 345         trail_edit->x = tpl->cx + tpl->x + 2;
 346         *cx = trail_edit->x + trail_edit->cx;
 347
 348         padding2 = (leading_len + local_len + padding)% sizeof(DWORD);
 349
 350         rc = HeapReAlloc(GetProcessHeap(),0,rc,leading_len+local_len + padding
 351                 +padding2+trail_len);
 352
 353         memcpy(((LPBYTE)rc) + leading_len + local_len + padding + padding2,
 354                 trail_edit,trail_len);
 355     }
 356     else
 357         *cx = tpl->cx + tpl->x;
 358
 359     *template_out = rc;
 360     if (leading_len)
 361         *count = 2;
 362     else
 363         *count = 1;
 364
 365     if (trail_edit)
 366         *count+=1;
 367
 368     return leading_len + local_len + padding + padding2 + trail_len;
 369 }
 370
 371
 372 static LPDLGTEMPLATEW create_options_page(HDC hdc, int *from_index,
 373                                           BOOL split_tabs)
 374 {
 375     SANE_Status rc;
 376     SANE_Int optcount;
 377     int i;
 378     INT y = 2;
 379     LPDLGTEMPLATEW tpl = NULL;
 380     LPBYTE all_controls = NULL;
 381     DWORD control_len = 0;
 382     int max_cx = 0;
 383     int group_max_cx = 0;
 384     LPBYTE ptr;
 385     int group_offset = -1;
 386     INT control_count = 0;
 387
 388     rc = sane_control_option(activeDS.deviceHandle, 0, SANE_ACTION_GET_VALUE,
 389             &optcount, NULL);
 390
 391     if (rc != SANE_STATUS_GOOD)
 392     {
 393         ERR("Unable to read number of options\n");
 394         return NULL;
 395     }
 396
 397     for (i = *from_index; i < optcount; i++)
 398     {
 399         LPDLGITEMTEMPLATEW item_tpl = NULL;
 400         const SANE_Option_Descriptor *opt;
 401         int len;
 402         int padding = 0;
 403         int x;
 404         int count;
 405         int hold_for_group = 0;
 406
 407         opt = sane_get_option_descriptor(activeDS.deviceHandle, i);
 408         if (opt->type == SANE_TYPE_GROUP && split_tabs)
 409         {
 410             if (control_len > 0)
 411             {
 412                 *from_index = i - 1;
 413                 goto exit;
 414             }
 415             else
 416             {
 417                 *from_index = i;
 418                 return NULL;
 419             }
 420         }
 421
 422         len = create_item(hdc, opt, ID_BASE + i, &item_tpl, y, &x, &count);
 423
 424         control_count += count;
 425
 426         if (!len)
 427         {
 428             continue;
 429         }
 430
 431         hold_for_group = y;
 432         y+= item_tpl->cy + 1;
 433         max_cx = max(max_cx, x + 2);
 434         group_max_cx = max(group_max_cx, x );
 435
 436         padding = len % sizeof(DWORD);
 437
 438         if (all_controls)
 439         {
 440             LPBYTE newone;
 441             newone = HeapReAlloc(GetProcessHeap(),0,all_controls,
 442                     control_len + len + padding);
 443             all_controls = newone;
 444             memcpy(all_controls+control_len,item_tpl,len);
 445             memset(all_controls+control_len+len,0xca,padding);
 446             HeapFree(GetProcessHeap(),0,item_tpl);
 447         }
 448         else
 449         {
 450             if (!padding)
 451             {
 452                 all_controls = (LPBYTE)item_tpl;
 453             }
 454             else
 455             {
 456                 all_controls = HeapAlloc(GetProcessHeap(),0,len + padding);
 457                 memcpy(all_controls,item_tpl,len);
 458                 memset(all_controls+len,0xcb,padding);
 459                 HeapFree(GetProcessHeap(),0,item_tpl);
 460             }
 461         }
 462
 463         if (opt->type == SANE_TYPE_GROUP)
 464         {
 465             if (group_offset == -1)
 466             {
 467                 group_offset  = control_len;
 468                 group_max_cx = 0;
 469             }
 470             else
 471             {
 472                 LPDLGITEMTEMPLATEW group =
 473                     (LPDLGITEMTEMPLATEW)(all_controls+group_offset);
 474
 475                 group->cy = hold_for_group - group->y;
 476                 group->cx = group_max_cx;
 477
 478                 group = (LPDLGITEMTEMPLATEW)(all_controls+control_len);
 479                 group->y += 2;
 480                 y+=2;
 481                 group_max_cx = 0;
 482                 group_offset  = control_len;
 483             }
 484         }
 485
 486         control_len += len + padding;
 487     }
 488
 489     if ( group_offset && !split_tabs )
 490     {
 491         LPDLGITEMTEMPLATEW group =
 492             (LPDLGITEMTEMPLATEW)(all_controls+group_offset);
 493         group->cy = y - group->y;
 494         group->cx = group_max_cx;
 495         y+=2;
 496     }
 497
 498     *from_index = i-1;
 499 exit:
 500
 501     tpl = HeapAlloc(GetProcessHeap(),0,sizeof(DLGTEMPLATE) + 3*sizeof(WORD) +
 502             control_len);
 503
 504     tpl->style = WS_VISIBLE | WS_OVERLAPPEDWINDOW;
 505     tpl->dwExtendedStyle = 0;
 506     tpl->cdit = control_count;
 507     tpl->x = 0;
 508     tpl->y = 0;
 509     tpl->cx = max_cx + 10;
 510     tpl->cy = y + 10;
 511     ptr = (LPBYTE)tpl + sizeof(DLGTEMPLATE);
 512     *(LPWORD)ptr = 0x0000;
 513     ptr+=sizeof(WORD);
 514     *(LPWORD)ptr = 0x0000;
 515     ptr+=sizeof(WORD);
 516     *(LPWORD)ptr = 0x0000;
 517     ptr+=sizeof(WORD);
 518     memcpy(ptr,all_controls,control_len);
 519
 520     HeapFree(GetProcessHeap(),0,all_controls);
 521
 522     return tpl;
 523 }
 524
 525 BOOL DoScannerUI(void)
 526 {
 527     HDC hdc;
 528     PROPSHEETPAGEW psp[10];
 529     int page_count= 0;
 530     PROPSHEETHEADERW psh;
 531     int index = 1;
 532     SANE_Status rc;
 533     SANE_Int optcount;
 534     UINT psrc;
 535     LPWSTR szCaption;
 536     DWORD len;
 537
 538     hdc = GetDC(0);
 539
 540     memset(&psp,0,sizeof(psp));
 541     rc = sane_control_option(activeDS.deviceHandle, 0, SANE_ACTION_GET_VALUE,
 542             &optcount, NULL);
 543
 544     while (index < optcount)
 545     {
 546         const SANE_Option_Descriptor *opt;
 547         psp[page_count].u.pResource = create_options_page(hdc, &index,
 548                 TRUE);
 549         opt = sane_get_option_descriptor(activeDS.deviceHandle, index);
 550
 551         if (opt->type == SANE_TYPE_GROUP)
 552         {
 553             LPWSTR title = NULL;
 554             INT len;
 555
 556             len = MultiByteToWideChar(CP_ACP,0,opt->title,-1,NULL,0);
 557             title = HeapAlloc(GetProcessHeap(),0,len * sizeof(WCHAR));
 558             MultiByteToWideChar(CP_ACP,0,opt->title,-1,title,len);
 559
 560             psp[page_count].pszTitle = title;
 561         }
 562
 563         if (psp[page_count].u.pResource)
 564         {
 565             psp[page_count].dwSize = sizeof(PROPSHEETPAGEW);
 566             psp[page_count].dwFlags =  PSP_DLGINDIRECT | PSP_USETITLE;
 567             psp[page_count].hInstance = SANE_instance;
 568             psp[page_count].pfnDlgProc = DialogProc;
 569             psp[page_count].lParam = (LPARAM)&activeDS;
 570             page_count ++;
 571         }
 572
 573         index ++;
 574     }
 575
 576     len = lstrlenA(activeDS.identity.Manufacturer)
 577          + lstrlenA(activeDS.identity.ProductName) + 2;
 578     szCaption = HeapAlloc(GetProcessHeap(),0,len *sizeof(WCHAR));
 579     MultiByteToWideChar(CP_ACP,0,activeDS.identity.Manufacturer,-1,
 580             szCaption,len);
 581     szCaption[lstrlenA(activeDS.identity.Manufacturer)] = ' ';
 582     MultiByteToWideChar(CP_ACP,0,activeDS.identity.ProductName,-1,
 583             &szCaption[lstrlenA(activeDS.identity.Manufacturer)+1],len);
 584     psh.dwSize = sizeof(PROPSHEETHEADERW);
 585     psh.dwFlags = PSH_PROPSHEETPAGE|PSH_PROPTITLE|PSH_USECALLBACK;
 586     psh.hwndParent = activeDS.hwndOwner;
 587     psh.hInstance = SANE_instance;
 588     psh.u.pszIcon = 0;
 589     psh.pszCaption = szCaption;
 590     psh.nPages = page_count;
 591     psh.u2.nStartPage = 0;
 592     psh.u3.ppsp = (LPCPROPSHEETPAGEW) &psp;
 593     psh.pfnCallback = PropSheetProc;
 594
 595     psrc = PropertySheetW(&psh);
 596
 597     for(index = 0; index < page_count; index ++)
 598     {
 599         HeapFree(GetProcessHeap(),0,(LPBYTE)psp[index].u.pResource);
 600         HeapFree(GetProcessHeap(),0,(LPBYTE)psp[index].pszTitle);
 601     }
 602
 603     if (psrc == IDOK)
 604         return TRUE;
 605     else
 606         return FALSE;
 607 }
 608
 609 static void UpdateRelevantEdit(HWND hwnd, const SANE_Option_Descriptor *opt,
 610         int index, int position)
 611 {
 612     CHAR buffer[244];
 613     HWND edit_w;
 614     CHAR unit[20];
 615
 616     LoadStringA(SANE_instance, opt->unit, unit,20);
 617
 618     if (opt->type == SANE_TYPE_INT)
 619     {
 620         INT si;
 621
 622         if (opt->constraint.range->quant)
 623             si = position * opt->constraint.range->quant;
 624         else
 625             si = position;
 626
 627         sprintf(buffer,"%i %s",si,unit);
 628
 629     }
 630     else if  (opt->type == SANE_TYPE_FIXED)
 631     {
 632         double s_quant, dd;
 633
 634         s_quant = SANE_UNFIX(opt->constraint.range->quant);
 635
 636         if (s_quant)
 637             dd = position * s_quant;
 638         else
 639             dd = position * 0.01;
 640
 641         sprintf(buffer,"%f %s",dd,unit);
 642     }
 643     else
 644         buffer[0] = 0;
 645
 646     edit_w = GetDlgItem(hwnd,index+ID_BASE+ID_EDIT_BASE);
 647     if (edit_w && buffer[0])
 648         SetWindowTextA(edit_w,buffer);
 649
 650 }
 651
 652 static BOOL UpdateSaneScrollOption(
 653         const SANE_Option_Descriptor *opt, int index, DWORD position)
 654 {
 655     SANE_Status rc = SANE_STATUS_GOOD;
 656     SANE_Int result = 0;
 657
 658     if (opt->type == SANE_TYPE_INT)
 659     {
 660         SANE_Int si;
 661
 662         if (opt->constraint.range->quant)
 663             si = position * opt->constraint.range->quant;
 664         else
 665             si = position;
 666
 667         rc = sane_control_option (activeDS.deviceHandle,index,
 668             SANE_ACTION_SET_VALUE, &si, &result);
 669
 670     }
 671     else if  (opt->type == SANE_TYPE_FIXED)
 672     {
 673         double s_quant, dd;
 674         SANE_Fixed *sf;
 675
 676         s_quant = SANE_UNFIX(opt->constraint.range->quant);
 677
 678         if (s_quant)
 679             dd = position * s_quant;
 680         else
 681             dd = position * 0.01;
 682
 683         sf = HeapAlloc(GetProcessHeap(),0,opt->size*sizeof(SANE_Word));
 684
 685         *sf = SANE_FIX(dd);
 686
 687         rc = sane_control_option (activeDS.deviceHandle,index,
 688             SANE_ACTION_SET_VALUE, sf, &result);
 689
 690         HeapFree(GetProcessHeap(),0,sf);
 691     }
 692
 693     if(rc == SANE_STATUS_GOOD)
 694     {
 695         if (result & SANE_INFO_RELOAD_OPTIONS ||
 696                 result & SANE_INFO_RELOAD_PARAMS || result & SANE_INFO_INEXACT)
 697             return TRUE;
 698     }
 699     return FALSE;
 700 }
 701
 702 static BOOL UpdateSaneBoolOption(int index, BOOL position)
 703 {
 704     SANE_Status rc = SANE_STATUS_GOOD;
 705     SANE_Int result = 0;
 706     SANE_Bool si;
 707
 708     si = position;
 709
 710     rc = sane_control_option (activeDS.deviceHandle,index,
 711             SANE_ACTION_SET_VALUE, &si, &result);
 712
 713     if(rc == SANE_STATUS_GOOD)
 714     {
 715         if (result & SANE_INFO_RELOAD_OPTIONS ||
 716                 result & SANE_INFO_RELOAD_PARAMS || result & SANE_INFO_INEXACT)
 717             return TRUE;
 718     }
 719     return FALSE;
 720 }
 721
 722 static BOOL UpdateSaneStringOption(int index, SANE_String value)
 723 {
 724     SANE_Status rc = SANE_STATUS_GOOD;
 725     SANE_Int result = 0;
 726
 727     rc = sane_control_option (activeDS.deviceHandle,index,
 728             SANE_ACTION_SET_VALUE, value, &result);
 729
 730     if(rc == SANE_STATUS_GOOD)
 731     {
 732         if (result & SANE_INFO_RELOAD_OPTIONS ||
 733                 result & SANE_INFO_RELOAD_PARAMS || result & SANE_INFO_INEXACT)
 734             return TRUE;
 735     }
 736     return FALSE;
 737 }
 738
 739 static INT_PTR InitializeDialog(HWND hwnd)
 740 {
 741     SANE_Status rc;
 742     SANE_Int optcount;
 743     HWND control;
 744     int i;
 745
 746     rc = sane_control_option(activeDS.deviceHandle, 0, SANE_ACTION_GET_VALUE,
 747             &optcount, NULL);
 748
 749     for ( i = 1; i < optcount; i++)
 750     {
 751         const SANE_Option_Descriptor *opt;
 752
 753         control = GetDlgItem(hwnd,i+ID_BASE);
 754
 755         if (!control)
 756             continue;
 757
 758         opt = sane_get_option_descriptor(activeDS.deviceHandle, i);
 759
 760         TRACE("%i %s %i %i\n",i,opt->title,opt->type,opt->constraint_type);
 761
 762         if (!SANE_OPTION_IS_ACTIVE(opt->cap))
 763             EnableWindow(control,FALSE);
 764         else
 765             EnableWindow(control,TRUE);
 766
 767         SendMessageA(control,CB_RESETCONTENT,0,0);
 768         /* initialize values */
 769         if (opt->type == SANE_TYPE_STRING && opt->constraint_type !=
 770                 SANE_CONSTRAINT_NONE)
 771         {
 772             int j = 0;
 773             CHAR buffer[255];
 774             while (opt->constraint.string_list[j]!=NULL)
 775             {
 776                 SendMessageA(control,CB_ADDSTRING,0,
 777                         (LPARAM)opt->constraint.string_list[j]);
 778                 j++;
 779             }
 780             sane_control_option(activeDS.deviceHandle, i, SANE_ACTION_GET_VALUE, buffer,NULL);
 781             SendMessageA(control,CB_SELECTSTRING,0,(LPARAM)buffer);
 782         }
 783         else if (opt->type == SANE_TYPE_BOOL)
 784         {
 785             SANE_Bool b;
 786             sane_control_option(activeDS.deviceHandle, i,
 787                     SANE_ACTION_GET_VALUE, &b, NULL);
 788             if (b)
 789                 SendMessageA(control,BM_SETCHECK,BST_CHECKED,0);
 790
 791         }
 792         else if (opt->constraint_type == SANE_CONSTRAINT_RANGE)
 793         {
 794             if (opt->type == SANE_TYPE_INT)
 795             {
 796                 SANE_Int si;
 797                 int min,max;
 798
 799                 min = (SANE_Int)opt->constraint.range->min /
 800                     (((SANE_Int)opt->constraint.range->quant)?
 801                     (SANE_Int)opt->constraint.range->quant:1);
 802
 803                 max = (SANE_Int)opt->constraint.range->max /
 804                     (((SANE_Int)opt->constraint.range->quant)
 805                     ?(SANE_Int)opt->constraint.range->quant:1);
 806
 807                 SendMessageA(control,SBM_SETRANGE,min,max);
 808
 809                 sane_control_option(activeDS.deviceHandle, i,
 810                         SANE_ACTION_GET_VALUE, &si,NULL);
 811                 if (opt->constraint.range->quant)
 812                     si = si / opt->constraint.range->quant;
 813
 814                 SendMessageW(control,SBM_SETPOS, si, TRUE);
 815                 UpdateRelevantEdit(hwnd, opt, i, si);
 816             }
 817             else if (opt->type == SANE_TYPE_FIXED)
 818             {
 819                 SANE_Fixed *sf;
 820
 821                 double dd;
 822                 double s_min,s_max,s_quant;
 823                 INT pos;
 824                 int min,max;
 825
 826                 s_min = SANE_UNFIX(opt->constraint.range->min);
 827                 s_max = SANE_UNFIX(opt->constraint.range->max);
 828                 s_quant = SANE_UNFIX(opt->constraint.range->quant);
 829
 830                 if (s_quant)
 831                 {
 832                     min = (s_min / s_quant);
 833                     max = (s_max / s_quant);
 834                 }
 835                 else
 836                 {
 837                     min = s_min / 0.01;
 838                     max = s_max / 0.01;
 839                 }
 840
 841                 SendMessageA(control,SBM_SETRANGE,min,max);
 842
 843
 844                 sf = HeapAlloc(GetProcessHeap(),0,opt->size*sizeof(SANE_Word));
 845                 sane_control_option(activeDS.deviceHandle, i,
 846                         SANE_ACTION_GET_VALUE, sf,NULL);
 847
 848                 dd = SANE_UNFIX(*sf);
 849                 HeapFree(GetProcessHeap(),0,sf);
 850
 851                 if (s_quant)
 852                     pos = (dd / s_quant);
 853                 else
 854                     pos = dd / 0.01;
 855
 856                 SendMessageW(control, SBM_SETPOS, pos, TRUE);
 857
 858                 UpdateRelevantEdit(hwnd, opt, i, pos);
 859             }
 860         }
 861     }
 862
 863     return TRUE;
 864 }
 865
 866 static INT_PTR ProcessScroll(HWND hwnd, WPARAM wParam, LPARAM lParam)
 867 {
 868     int index;
 869     const SANE_Option_Descriptor *opt;
 870     WORD scroll;
 871     DWORD position;
 872
 873     index = GetDlgCtrlID((HWND)lParam)- ID_BASE;
 874     if (index < 0)
 875         return FALSE;
 876
 877     opt = sane_get_option_descriptor(activeDS.deviceHandle, index);
 878
 879     if (!opt)
 880         return FALSE;
 881
 882     scroll = LOWORD(wParam);
 883
 884     switch (scroll)
 885     {
 886         case SB_THUMBTRACK:
 887         case SB_THUMBPOSITION:
 888         {
 889             SCROLLINFO si;
 890             si.cbSize = sizeof(SCROLLINFO);
 891             si.fMask = SIF_TRACKPOS;
 892             GetScrollInfo((HWND)lParam,SB_CTL, &si);
 893             position = si.nTrackPos;
 894         }
 895             break;
 896         case SB_LEFT:
 897         case SB_LINELEFT:
 898         case SB_PAGELEFT:
 899             position = SendMessageW((HWND)lParam,SBM_GETPOS,0,0);
 900             position--;
 901             break;
 902         case SB_RIGHT:
 903         case SB_LINERIGHT:
 904         case SB_PAGERIGHT:
 905             position = SendMessageW((HWND)lParam,SBM_GETPOS,0,0);
 906             position++;
 907             break;
 908         default:
 909             position = SendMessageW((HWND)lParam,SBM_GETPOS,0,0);
 910     }
 911
 912     SendMessageW((HWND)lParam,SBM_SETPOS, position, TRUE);
 913     position = SendMessageW((HWND)lParam,SBM_GETPOS,0,0);
 914
 915     UpdateRelevantEdit(hwnd, opt, index, position);
 916     if (UpdateSaneScrollOption(opt, index, position))
 917         InitializeDialog(hwnd);
 918
 919     return TRUE;
 920 }
 921
 922
 923 static void ButtonClicked(HWND hwnd, INT id, HWND control)
 924 {
 925     int index;
 926     const SANE_Option_Descriptor *opt;
 927
 928     index = id - ID_BASE;
 929     if (index < 0)
 930         return;
 931
 932     opt = sane_get_option_descriptor(activeDS.deviceHandle, index);
 933
 934     if (!opt)
 935         return;
 936
 937     if (opt->type == SANE_TYPE_BOOL)
 938     {
 939         BOOL r = SendMessageW(control,BM_GETCHECK,0,0)==BST_CHECKED;
 940         if (UpdateSaneBoolOption(index, r))
 941                 InitializeDialog(hwnd);
 942     }
 943 }
 944
 945 static void ComboChanged(HWND hwnd, INT id, HWND control)
 946 {
 947     int index;
 948     int selection;
 949     int len;
 950     const SANE_Option_Descriptor *opt;
 951     SANE_String value;
 952
 953     index = id - ID_BASE;
 954     if (index < 0)
 955         return;
 956
 957     opt = sane_get_option_descriptor(activeDS.deviceHandle, index);
 958
 959     if (!opt)
 960         return;
 961
 962     selection = SendMessageW(control,CB_GETCURSEL,0,0);
 963     len = SendMessageW(control,CB_GETLBTEXTLEN,selection,0);
 964
 965     len++;
 966     value = HeapAlloc(GetProcessHeap(),0,len);
 967     SendMessageA(control,CB_GETLBTEXT,selection,(LPARAM)value);
 968
 969     if (opt->type == SANE_TYPE_STRING)
 970     {
 971         if (UpdateSaneStringOption(index, value))
 972                 InitializeDialog(hwnd);
 973     }
 974 }
 975
 976
 977 static INT_PTR CALLBACK DialogProc(HWND hwndDlg, UINT msg, WPARAM wParam, LPARAM lParam)
 978 {
 979     switch (msg)
 980     {
 981         case WM_INITDIALOG:
 982             return InitializeDialog(hwndDlg);
 983         case WM_HSCROLL:
 984             return ProcessScroll(hwndDlg, wParam, lParam);
 985             break;
 986         case WM_NOTIFY:
 987             {
 988                 LPPSHNOTIFY psn = (LPPSHNOTIFY)lParam;
 989                 switch (((NMHDR*)lParam)->code)
 990                 {
 991                     case PSN_APPLY:
 992                         if (psn->lParam == TRUE)
 993                         {
 994                             activeDS.currentState = 6;
 995                             activeDS.pendingEvent.TWMessage = MSG_XFERREADY;
 996                         }
 997                         break;
 998                     case PSN_QUERYCANCEL:
 999                         activeDS.pendingEvent.TWMessage = MSG_CLOSEDSREQ;
1000                         break;
1001                     case PSN_SETACTIVE:
1002                         InitializeDialog(hwndDlg);
1003                         break;
1004                 }
1005             }
1006         case WM_COMMAND:
1007             {
1008                 switch (HIWORD(wParam))
1009                 {
1010                     case BN_CLICKED:
1011                         ButtonClicked(hwndDlg,LOWORD(wParam),
1012                                 (HWND)lParam);
1013                         break;
1014                     case CBN_SELCHANGE:
1015                         ComboChanged(hwndDlg,LOWORD(wParam),
1016                                 (HWND)lParam);
1017                 }
1018             }
1019     }
1020
1021     return FALSE;
1022 }
1023
1024 static int CALLBACK PropSheetProc(HWND hwnd, UINT msg, LPARAM lParam)
1025 {
1026     if (msg == PSCB_INITIALIZED)
1027     {
1028         /* rename OK button to Scan */
1029         HWND scan = GetDlgItem(hwnd,IDOK);
1030         SetWindowTextA(scan,"Scan");
1031     }
1032     return TRUE;
1033 }
1034
1035
1036 static INT_PTR CALLBACK ScanningProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
1037 {
1038     return FALSE;
1039 }
1040
1041 HWND ScanningDialogBox(HWND dialog, LONG progress)
1042 {
1043     if (!dialog)
1044         dialog = CreateDialogW(SANE_instance,
1045                 (LPWSTR)MAKEINTRESOURCE(IDD_DIALOG1), NULL, ScanningProc);
1046
1047     if (progress == -1)
1048     {
1049         EndDialog(dialog,0);
1050         return NULL;
1051     }
1052
1053     RedrawWindow(dialog,NULL,NULL,
1054             RDW_INTERNALPAINT|RDW_UPDATENOW|RDW_ALLCHILDREN);
1055
1056     return dialog;
1057 }
1058
1059 #else  /* HAVE_SANE */
1060
1061 BOOL DoScannerUI(void)
1062 {
1063     return FALSE;
1064 }
1065
1066 #endif  /* HAVE_SANE */