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 <stdlib.h>
  22 #include <stdarg.h>
  23 #include <stdio.h>
  24
  25 #define NONAMELESSUNION
  26
  27 #include "sane_i.h"
  28 #include "winuser.h"
  29 #include "winnls.h"
  30 #include "wingdi.h"
  31 #include "prsht.h"
  32 #include "wine/debug.h"
  33 #include "resource.h"
  34
  35 WINE_DEFAULT_DEBUG_CHANNEL(twain);
  36
  37 #define ID_BASE 0x100
  38 #define ID_EDIT_BASE 0x1000
  39 #define ID_STATIC_BASE 0x2000
  40
  41 static INT_PTR CALLBACK DialogProc (HWND , UINT , WPARAM , LPARAM );
  42 static INT CALLBACK PropSheetProc(HWND, UINT,LPARAM);
  43
  44 static int create_leading_static(HDC hdc, const WCHAR *text,
  45         LPDLGITEMTEMPLATEW* template_out, int y, int id)
  46 {
  47     LPDLGITEMTEMPLATEW tpl =  NULL;
  48     INT len;
  49     SIZE size;
  50     WORD *ptr;
  51     LONG base;
  52
  53     *template_out = NULL;
  54
  55     if (!text)
  56         return 0;
  57
  58     base = GetDialogBaseUnits();
  59
  60     len = lstrlenW(text) * sizeof(WCHAR);
  61     len += sizeof(DLGITEMTEMPLATE);
  62     len += 4*sizeof(WORD);
  63
  64     tpl = malloc(len);
  65     tpl->style=WS_VISIBLE;
  66     tpl->dwExtendedStyle = 0;
  67     tpl->x = 4;
  68     tpl->y = y;
  69     tpl->id = ID_BASE;
  70
  71     GetTextExtentPoint32W(hdc,text,lstrlenW(text),&size);
  72
  73     tpl->cx =  MulDiv(size.cx,4,LOWORD(base));
  74     tpl->cy =  MulDiv(size.cy,8,HIWORD(base)) * 2;
  75     ptr = (WORD *)(tpl + 1);
  76     *ptr++ = 0xffff;
  77     *ptr++ = 0x0082;
  78     lstrcpyW( ptr, text );
  79     ptr += lstrlenW(ptr) + 1;
  80     *ptr = 0;
  81
  82     *template_out = tpl;
  83     return len;
  84 }
  85
  86 static int create_trailing_edit(HDC hdc, LPDLGITEMTEMPLATEW* template_out, int id,
  87         int y, const WCHAR *text,BOOL is_int)
  88 {
  89     LPDLGITEMTEMPLATEW tpl =  NULL;
  90     INT len;
  91     WORD *ptr;
  92     SIZE size;
  93     LONG base;
  94     static const char int_base[] = "0000 xxx";
  95     static const char float_base[] = "0000.0000 xxx";
  96
  97     base = GetDialogBaseUnits();
  98
  99     len = lstrlenW(text) * sizeof(WCHAR);
 100     len += sizeof(DLGITEMTEMPLATE);
 101     len += 4*sizeof(WORD);
 102
 103     tpl = malloc(len);
 104     tpl->style=WS_VISIBLE|ES_READONLY|WS_BORDER;
 105     tpl->dwExtendedStyle = 0;
 106     tpl->x = 1;
 107     tpl->y = y;
 108     tpl->id = id;
 109
 110     if (is_int)
 111         GetTextExtentPoint32A(hdc,int_base,lstrlenA(int_base),&size);
 112     else
 113         GetTextExtentPoint32A(hdc,float_base,lstrlenA(float_base),&size);
 114
 115     tpl->cx =  MulDiv(size.cx*2,4,LOWORD(base));
 116     tpl->cy =  MulDiv(size.cy,8,HIWORD(base)) * 2;
 117
 118     ptr = (WORD *)(tpl + 1);
 119     *ptr++ = 0xffff;
 120     *ptr++ = 0x0081;
 121     lstrcpyW( ptr, text );
 122     ptr += lstrlenW(ptr) + 1;
 123     *ptr = 0;
 124
 125     *template_out = tpl;
 126     return len;
 127 }
 128
 129
 130 static int create_item(HDC hdc, const struct option_descriptor *opt,
 131         INT id, LPDLGITEMTEMPLATEW *template_out, int y, int *cx, int* count)
 132 {
 133     LPDLGITEMTEMPLATEW tpl = NULL,rc = NULL;
 134     WORD class = 0xffff;
 135     DWORD styles = WS_VISIBLE;
 136     WORD *ptr = NULL;
 137     LPDLGITEMTEMPLATEW lead_static = NULL;
 138     LPDLGITEMTEMPLATEW trail_edit = NULL;
 139     DWORD leading_len = 0;
 140     DWORD trail_len = 0;
 141     DWORD local_len = 0;
 142     const WCHAR *title = NULL;
 143     WCHAR buffer[255];
 144     int padding = 0;
 145     int padding2 = 0;
 146     int base_x = 0;
 147     LONG base;
 148     int ctl_cx = 0;
 149     SIZE size;
 150
 151     GetTextExtentPoint32A(hdc,"X",1,&size);
 152     base = GetDialogBaseUnits();
 153     base_x = MulDiv(size.cx,4,LOWORD(base));
 154
 155     switch (opt->type)
 156     {
 157     case TYPE_BOOL:
 158         class = 0x0080; /* Button */
 159         styles |= BS_AUTOCHECKBOX;
 160         title = opt->title;
 161         break;
 162     case TYPE_INT:
 163     {
 164         int i;
 165         sane_option_get_value( id - ID_BASE, &i );
 166         swprintf(buffer, ARRAY_SIZE(buffer), L"%i", i);
 167
 168         switch (opt->constraint_type)
 169         {
 170         case CONSTRAINT_NONE:
 171             class = 0x0081; /* Edit*/
 172             styles |= ES_NUMBER;
 173             title = buffer;
 174             break;
 175         case CONSTRAINT_RANGE:
 176             class = 0x0084; /* scroll */
 177             ctl_cx = 10 * base_x;
 178             trail_len += create_trailing_edit(hdc, &trail_edit, id +
 179                     ID_EDIT_BASE, y,buffer,TRUE);
 180             break;
 181         default:
 182             class= 0x0085; /* Combo */
 183             ctl_cx = 10 * base_x;
 184             styles |= CBS_DROPDOWNLIST;
 185             break;
 186         }
 187         leading_len += create_leading_static(hdc, opt->title, &lead_static, y, id+ID_STATIC_BASE);
 188         break;
 189     }
 190     case TYPE_FIXED:
 191     {
 192         int *i = calloc( opt->size, sizeof(int) );
 193
 194         sane_option_get_value( id - ID_BASE, i );
 195
 196         swprintf(buffer, ARRAY_SIZE(buffer), L"%f", *i / 65536.0);
 197         free( i );
 198
 199         switch (opt->constraint_type)
 200         {
 201         case CONSTRAINT_NONE:
 202             class = 0x0081; /* Edit */
 203             title = buffer;
 204             break;
 205         case CONSTRAINT_RANGE:
 206             class= 0x0084; /* scroll */
 207             ctl_cx = 10 * base_x;
 208             trail_len += create_trailing_edit(hdc, &trail_edit, id + ID_EDIT_BASE, y,buffer,FALSE);
 209             break;
 210         default:
 211             class= 0x0085; /* Combo */
 212             ctl_cx = 10 * base_x;
 213             styles |= CBS_DROPDOWNLIST;
 214             break;
 215         }
 216         leading_len += create_leading_static(hdc, opt->title, &lead_static, y, id+ID_STATIC_BASE);
 217         break;
 218     }
 219     case TYPE_STRING:
 220     {
 221         char str[256];
 222         switch (opt->constraint_type)
 223         {
 224         case CONSTRAINT_NONE:
 225             class = 0x0081; /* Edit*/
 226             break;
 227         default:
 228             class= 0x0085; /* Combo */
 229             ctl_cx = opt->size * base_x;
 230             styles |= CBS_DROPDOWNLIST;
 231             break;
 232         }
 233         leading_len += create_leading_static(hdc, opt->title, &lead_static, y, id+ID_STATIC_BASE);
 234         sane_option_get_value( id - ID_BASE, str );
 235         MultiByteToWideChar( CP_UNIXCP, 0, str, -1, buffer, ARRAY_SIZE(buffer) );
 236         title = buffer;
 237         break;
 238     }
 239     case TYPE_BUTTON:
 240         class = 0x0080; /* Button */
 241         title = opt->title;
 242         break;
 243     case TYPE_GROUP:
 244         class = 0x0080; /* Button */
 245         styles |= BS_GROUPBOX;
 246         title = opt->title;
 247         break;
 248     }
 249
 250     local_len += sizeof(DLGITEMTEMPLATE);
 251     if (title) local_len += lstrlenW(title) * sizeof(WCHAR);
 252     local_len += 4*sizeof(WORD);
 253
 254     padding = leading_len % sizeof(DWORD);
 255     rc = realloc(lead_static, leading_len + local_len + padding);
 256     tpl = (LPDLGITEMTEMPLATEW)((LPBYTE)rc + leading_len + padding);
 257     tpl->style=styles;
 258     tpl->dwExtendedStyle = 0;
 259     if (lead_static)
 260         tpl->x = lead_static->x + lead_static->cx + 1;
 261     else if (opt->type == TYPE_GROUP)
 262         tpl->x = 2;
 263     else
 264         tpl->x = 4;
 265     tpl->y = y;
 266     tpl->id = id;
 267
 268     if (title)
 269     {
 270         GetTextExtentPoint32W(hdc,title,lstrlenW(title),&size);
 271         tpl->cx = size.cx;
 272         tpl->cy = size.cy;
 273     }
 274     else
 275     {
 276         if (lead_static)
 277             tpl->cy = lead_static->cy;
 278         else
 279             tpl->cy = 15;
 280
 281         if (!ctl_cx)
 282             ctl_cx = 15;
 283
 284         tpl->cx = ctl_cx;
 285     }
 286     ptr = (WORD *)(tpl + 1);
 287     *ptr++ = 0xffff;
 288     *ptr++ = class;
 289     if (title)
 290     {
 291         lstrcpyW( ptr, title );
 292         ptr += lstrlenW(ptr);
 293     }
 294     *ptr++ = 0;
 295     *ptr = 0;
 296
 297     if (trail_edit)
 298     {
 299         trail_edit->x = tpl->cx + tpl->x + 2;
 300         *cx = trail_edit->x + trail_edit->cx;
 301
 302         padding2 = (leading_len + local_len + padding)% sizeof(DWORD);
 303
 304         rc = realloc( rc, leading_len + local_len + padding +padding2 + trail_len);
 305
 306         memcpy(((LPBYTE)rc) + leading_len + local_len + padding + padding2,
 307                 trail_edit,trail_len);
 308     }
 309     else
 310         *cx = tpl->cx + tpl->x;
 311
 312     *template_out = rc;
 313     if (leading_len)
 314         *count = 2;
 315     else
 316         *count = 1;
 317
 318     if (trail_edit)
 319         *count+=1;
 320
 321     return leading_len + local_len + padding + padding2 + trail_len;
 322 }
 323
 324
 325 static LPDLGTEMPLATEW create_options_page(HDC hdc, int *from_index,
 326                                           int optcount, BOOL split_tabs)
 327 {
 328     int i;
 329     INT y = 2;
 330     LPDLGTEMPLATEW tpl = NULL;
 331     LPBYTE all_controls = NULL;
 332     DWORD control_len = 0;
 333     int max_cx = 0;
 334     int group_max_cx = 0;
 335     LPBYTE ptr;
 336     int group_offset = -1;
 337     INT control_count = 0;
 338
 339     for (i = *from_index; i < optcount; i++)
 340     {
 341         LPDLGITEMTEMPLATEW item_tpl = NULL;
 342         struct option_descriptor opt;
 343         int len;
 344         int padding = 0;
 345         int x;
 346         int count;
 347         int hold_for_group = 0;
 348
 349         opt.optno = i;
 350         if (SANE_CALL( option_get_descriptor, &opt )) continue;
 351         if (opt.type == TYPE_GROUP && split_tabs)
 352         {
 353             if (control_len > 0)
 354             {
 355                 *from_index = i - 1;
 356                 goto exit;
 357             }
 358             else
 359             {
 360                 *from_index = i;
 361                 return NULL;
 362             }
 363         }
 364         if (!opt.is_active)
 365             continue;
 366
 367         len = create_item(hdc, &opt, ID_BASE + i, &item_tpl, y, &x, &count);
 368
 369         control_count += count;
 370
 371         if (!len)
 372         {
 373             continue;
 374         }
 375
 376         hold_for_group = y;
 377         y+= item_tpl->cy + 1;
 378         max_cx = max(max_cx, x + 2);
 379         group_max_cx = max(group_max_cx, x );
 380
 381         padding = len % sizeof(DWORD);
 382
 383         if (all_controls)
 384         {
 385             all_controls = realloc(all_controls, control_len + len + padding);
 386             memcpy(all_controls+control_len,item_tpl,len);
 387             memset(all_controls+control_len+len,0xca,padding);
 388             free(item_tpl);
 389         }
 390         else
 391         {
 392             if (!padding)
 393             {
 394                 all_controls = (LPBYTE)item_tpl;
 395             }
 396             else
 397             {
 398                 all_controls = malloc(len + padding);
 399                 memcpy(all_controls,item_tpl,len);
 400                 memset(all_controls+len,0xcb,padding);
 401                 free(item_tpl);
 402             }
 403         }
 404
 405         if (opt.type == TYPE_GROUP)
 406         {
 407             if (group_offset == -1)
 408             {
 409                 group_offset  = control_len;
 410                 group_max_cx = 0;
 411             }
 412             else
 413             {
 414                 LPDLGITEMTEMPLATEW group =
 415                     (LPDLGITEMTEMPLATEW)(all_controls+group_offset);
 416
 417                 group->cy = hold_for_group - group->y;
 418                 group->cx = group_max_cx;
 419
 420                 group = (LPDLGITEMTEMPLATEW)(all_controls+control_len);
 421                 group->y += 2;
 422                 y+=2;
 423                 group_max_cx = 0;
 424                 group_offset  = control_len;
 425             }
 426         }
 427
 428         control_len += len + padding;
 429     }
 430
 431     if ( group_offset && !split_tabs )
 432     {
 433         LPDLGITEMTEMPLATEW group =
 434             (LPDLGITEMTEMPLATEW)(all_controls+group_offset);
 435         group->cy = y - group->y;
 436         group->cx = group_max_cx;
 437         y+=2;
 438     }
 439
 440     *from_index = i-1;
 441 exit:
 442
 443     tpl = malloc(sizeof(DLGTEMPLATE) + 3*sizeof(WORD) + control_len);
 444
 445     tpl->style = WS_VISIBLE | WS_OVERLAPPEDWINDOW;
 446     tpl->dwExtendedStyle = 0;
 447     tpl->cdit = control_count;
 448     tpl->x = 0;
 449     tpl->y = 0;
 450     tpl->cx = max_cx + 10;
 451     tpl->cy = y + 10;
 452     ptr = (LPBYTE)tpl + sizeof(DLGTEMPLATE);
 453     *(LPWORD)ptr = 0x0000;
 454     ptr+=sizeof(WORD);
 455     *(LPWORD)ptr = 0x0000;
 456     ptr+=sizeof(WORD);
 457     *(LPWORD)ptr = 0x0000;
 458     ptr+=sizeof(WORD);
 459     memcpy(ptr,all_controls,control_len);
 460
 461     free(all_controls);
 462
 463     return tpl;
 464 }
 465
 466 BOOL DoScannerUI(void)
 467 {
 468     HDC hdc;
 469     PROPSHEETPAGEW psp[10];
 470     int page_count= 0;
 471     PROPSHEETHEADERW psh;
 472     int index = 1;
 473     TW_UINT16 rc;
 474     int optcount;
 475     UINT psrc;
 476     LPWSTR szCaption;
 477     DWORD len;
 478
 479     hdc = GetDC(0);
 480
 481     memset(psp,0,sizeof(psp));
 482     rc = sane_option_get_value( 0, &optcount );
 483     if (rc != TWCC_SUCCESS)
 484     {
 485         ERR("Unable to read number of options\n");
 486         return FALSE;
 487     }
 488
 489     while (index < optcount)
 490     {
 491         struct option_descriptor opt;
 492
 493         psp[page_count].u.pResource = create_options_page(hdc, &index,
 494                 optcount, TRUE);
 495         opt.optno = index;
 496         SANE_CALL( option_get_descriptor, &opt );
 497
 498         if (opt.type == TYPE_GROUP)
 499         {
 500             psp[page_count].pszTitle = wcsdup( opt.title );
 501         }
 502
 503         if (psp[page_count].u.pResource)
 504         {
 505             psp[page_count].dwSize = sizeof(PROPSHEETPAGEW);
 506             psp[page_count].dwFlags =  PSP_DLGINDIRECT | PSP_USETITLE;
 507             psp[page_count].hInstance = SANE_instance;
 508             psp[page_count].pfnDlgProc = DialogProc;
 509             psp[page_count].lParam = (LPARAM)&activeDS;
 510             page_count ++;
 511         }
 512
 513         index ++;
 514     }
 515
 516     len = lstrlenA(activeDS.identity.Manufacturer)
 517          + lstrlenA(activeDS.identity.ProductName) + 2;
 518     szCaption = malloc(len *sizeof(WCHAR));
 519     MultiByteToWideChar(CP_ACP,0,activeDS.identity.Manufacturer,-1,
 520             szCaption,len);
 521     szCaption[lstrlenA(activeDS.identity.Manufacturer)] = ' ';
 522     MultiByteToWideChar(CP_ACP,0,activeDS.identity.ProductName,-1,
 523             &szCaption[lstrlenA(activeDS.identity.Manufacturer)+1],len);
 524     psh.dwSize = sizeof(PROPSHEETHEADERW);
 525     psh.dwFlags = PSH_PROPSHEETPAGE|PSH_PROPTITLE|PSH_USECALLBACK;
 526     psh.hwndParent = activeDS.hwndOwner;
 527     psh.hInstance = SANE_instance;
 528     psh.u.pszIcon = 0;
 529     psh.pszCaption = szCaption;
 530     psh.nPages = page_count;
 531     psh.u2.nStartPage = 0;
 532     psh.u3.ppsp = (LPCPROPSHEETPAGEW)psp;
 533     psh.pfnCallback = PropSheetProc;
 534
 535     psrc = PropertySheetW(&psh);
 536
 537     for(index = 0; index < page_count; index ++)
 538     {
 539         free((LPBYTE)psp[index].u.pResource);
 540         free((LPBYTE)psp[index].pszTitle);
 541     }
 542     free(szCaption);
 543
 544     if (psrc == IDOK)
 545         return TRUE;
 546     else
 547         return FALSE;
 548 }
 549
 550 static void UpdateRelevantEdit(HWND hwnd, const struct option_descriptor *opt, int position)
 551 {
 552     WCHAR buffer[244];
 553     HWND edit_w;
 554     int len;
 555
 556     switch (opt->type)
 557     {
 558     case TYPE_INT:
 559     {
 560         INT si;
 561
 562         if (opt->constraint.range.quant)
 563             si = position * opt->constraint.range.quant;
 564         else
 565             si = position;
 566
 567         len = swprintf( buffer, ARRAY_SIZE(buffer), L"%i", si );
 568         break;
 569     }
 570     case TYPE_FIXED:
 571     {
 572         double dd;
 573
 574         if (opt->constraint.range.quant)
 575             dd = position * (opt->constraint.range.quant / 65536.0);
 576         else
 577             dd = position * 0.01;
 578
 579         len = swprintf( buffer, ARRAY_SIZE(buffer), L"%f", dd );
 580         break;
 581     }
 582     default:
 583         return;
 584     }
 585
 586     buffer[len++] = ' ';
 587     LoadStringW( SANE_instance, opt->unit, buffer + len, ARRAY_SIZE( buffer ) - len );
 588
 589     edit_w = GetDlgItem(hwnd,opt->optno + ID_BASE + ID_EDIT_BASE);
 590     if (edit_w) SetWindowTextW(edit_w,buffer);
 591
 592 }
 593
 594 static BOOL UpdateSaneScrollOption(const struct option_descriptor *opt, DWORD position)
 595 {
 596     BOOL result = FALSE;
 597     int si;
 598
 599     switch (opt->type)
 600     {
 601     case TYPE_INT:
 602     {
 603         if (opt->constraint.range.quant)
 604             si = position * opt->constraint.range.quant;
 605         else
 606             si = position;
 607
 608         sane_option_set_value( opt->optno, &si, &result );
 609         break;
 610     }
 611     case TYPE_FIXED:
 612         if (opt->constraint.range.quant)
 613             si = position * opt->constraint.range.quant;
 614         else
 615             si = MulDiv( position, 65536, 100 );
 616
 617         sane_option_set_value( opt->optno, &si, &result );
 618         break;
 619     default:
 620         break;
 621     }
 622
 623     return result;
 624 }
 625
 626 static INT_PTR InitializeDialog(HWND hwnd)
 627 {
 628     TW_UINT16 rc;
 629     int optcount;
 630     HWND control;
 631     int i;
 632
 633     rc = sane_option_get_value( 0, &optcount );
 634     if (rc != TWCC_SUCCESS)
 635     {
 636         ERR("Unable to read number of options\n");
 637         return FALSE;
 638     }
 639
 640     for ( i = 1; i < optcount; i++)
 641     {
 642         struct option_descriptor opt;
 643
 644         control = GetDlgItem(hwnd,i+ID_BASE);
 645
 646         if (!control)
 647             continue;
 648
 649         opt.optno = i;
 650         SANE_CALL( option_get_descriptor, &opt );
 651
 652         TRACE("%i %s %i %i\n",i,debugstr_w(opt.title),opt.type,opt.constraint_type);
 653         EnableWindow(control,opt.is_active);
 654
 655         SendMessageA(control,CB_RESETCONTENT,0,0);
 656         /* initialize values */
 657         if (opt.type == TYPE_STRING && opt.constraint_type != CONSTRAINT_NONE)
 658         {
 659             CHAR buffer[255];
 660             WCHAR *p;
 661
 662             for (p = opt.constraint.strings; *p; p += lstrlenW(p) + 1)
 663                 SendMessageW( control,CB_ADDSTRING,0, (LPARAM)p );
 664             sane_option_get_value( i, buffer );
 665             SendMessageA(control,CB_SELECTSTRING,0,(LPARAM)buffer);
 666         }
 667         else if (opt.type == TYPE_BOOL)
 668         {
 669             BOOL b;
 670             sane_option_get_value( i, &b );
 671             if (b)
 672                 SendMessageA(control,BM_SETCHECK,BST_CHECKED,0);
 673
 674         }
 675         else if (opt.type == TYPE_INT && opt.constraint_type == CONSTRAINT_WORD_LIST)
 676         {
 677             int j, count = opt.constraint.word_list[0];
 678             CHAR buffer[16];
 679             int val;
 680             for (j=1; j<=count; j++)
 681             {
 682                 sprintf(buffer, "%d", opt.constraint.word_list[j]);
 683                 SendMessageA(control, CB_ADDSTRING, 0, (LPARAM)buffer);
 684             }
 685             sane_option_get_value( i, &val );
 686             sprintf(buffer, "%d", val);
 687             SendMessageA(control,CB_SELECTSTRING,0,(LPARAM)buffer);
 688         }
 689         else if (opt.constraint_type == CONSTRAINT_RANGE)
 690         {
 691             if (opt.type == TYPE_INT)
 692             {
 693                 int si;
 694                 int min,max;
 695
 696                 min = opt.constraint.range.min /
 697                     (opt.constraint.range.quant ? opt.constraint.range.quant : 1);
 698
 699                 max = opt.constraint.range.max /
 700                     (opt.constraint.range.quant ? opt.constraint.range.quant : 1);
 701
 702                 SendMessageA(control,SBM_SETRANGE,min,max);
 703
 704                 sane_option_get_value( i, &si );
 705                 if (opt.constraint.range.quant)
 706                     si = si / opt.constraint.range.quant;
 707
 708                 SendMessageW(control,SBM_SETPOS, si, TRUE);
 709                 UpdateRelevantEdit(hwnd, &opt, si);
 710             }
 711             else if (opt.type == TYPE_FIXED)
 712             {
 713                 int pos, min, max, *sf;
 714
 715                 if (opt.constraint.range.quant)
 716                 {
 717                     min = opt.constraint.range.min / opt.constraint.range.quant;
 718                     max = opt.constraint.range.max / opt.constraint.range.quant;
 719                 }
 720                 else
 721                 {
 722                     min = MulDiv( opt.constraint.range.min, 100, 65536 );
 723                     max = MulDiv( opt.constraint.range.max, 100, 65536 );
 724                 }
 725
 726                 SendMessageA(control,SBM_SETRANGE,min,max);
 727
 728
 729                 sf = calloc( opt.size, sizeof(int) );
 730                 sane_option_get_value( i, sf );
 731
 732                 /* Note that conversion of float -> SANE_Fixed is lossy;
 733                  *   and when you truncate it into an integer, you can get
 734                  *   unfortunate results.  This calculation attempts
 735                  *   to mitigate that harm */
 736                 if (opt.constraint.range.quant)
 737                     pos = *sf / opt.constraint.range.quant;
 738                 else
 739                     pos = MulDiv( *sf, 100, 65536 );
 740
 741                 free(sf);
 742                 SendMessageW(control, SBM_SETPOS, pos, TRUE);
 743                 UpdateRelevantEdit(hwnd, &opt, pos);
 744             }
 745         }
 746     }
 747
 748     return TRUE;
 749 }
 750
 751 static INT_PTR ProcessScroll(HWND hwnd, WPARAM wParam, LPARAM lParam)
 752 {
 753     struct option_descriptor opt;
 754     WORD scroll;
 755     DWORD position;
 756
 757     opt.optno = GetDlgCtrlID((HWND)lParam)- ID_BASE;
 758     if (opt.optno < 0)
 759         return FALSE;
 760
 761     if (SANE_CALL( option_get_descriptor, &opt )) return FALSE;
 762
 763     scroll = LOWORD(wParam);
 764
 765     switch (scroll)
 766     {
 767         case SB_THUMBTRACK:
 768         case SB_THUMBPOSITION:
 769         {
 770             SCROLLINFO si;
 771             si.cbSize = sizeof(SCROLLINFO);
 772             si.fMask = SIF_TRACKPOS;
 773             GetScrollInfo((HWND)lParam,SB_CTL, &si);
 774             position = si.nTrackPos;
 775         }
 776             break;
 777         case SB_LEFT:
 778         case SB_LINELEFT:
 779         case SB_PAGELEFT:
 780             position = SendMessageW((HWND)lParam,SBM_GETPOS,0,0);
 781             position--;
 782             break;
 783         case SB_RIGHT:
 784         case SB_LINERIGHT:
 785         case SB_PAGERIGHT:
 786             position = SendMessageW((HWND)lParam,SBM_GETPOS,0,0);
 787             position++;
 788             break;
 789         default:
 790             position = SendMessageW((HWND)lParam,SBM_GETPOS,0,0);
 791     }
 792
 793     SendMessageW((HWND)lParam,SBM_SETPOS, position, TRUE);
 794     position = SendMessageW((HWND)lParam,SBM_GETPOS,0,0);
 795
 796     UpdateRelevantEdit(hwnd, &opt, position);
 797     if (UpdateSaneScrollOption(&opt, position))
 798         InitializeDialog(hwnd);
 799
 800     return TRUE;
 801 }
 802
 803
 804 static void ButtonClicked(HWND hwnd, INT id, HWND control)
 805 {
 806     struct option_descriptor opt;
 807     BOOL changed = FALSE;
 808
 809     opt.optno = id - ID_BASE;
 810     if (opt.optno < 0)
 811         return;
 812
 813     if (SANE_CALL( option_get_descriptor, &opt )) return;
 814
 815     if (opt.type == TYPE_BOOL)
 816     {
 817         BOOL r = SendMessageW(control,BM_GETCHECK,0,0)==BST_CHECKED;
 818         sane_option_set_value( opt.optno, &r, &changed );
 819         if (changed) InitializeDialog(hwnd);
 820     }
 821 }
 822
 823 static void ComboChanged(HWND hwnd, INT id, HWND control)
 824 {
 825     int selection;
 826     int len;
 827     struct option_descriptor opt;
 828     char *value;
 829     BOOL changed = FALSE;
 830
 831     opt.optno = id - ID_BASE;
 832     if (opt.optno < 0)
 833         return;
 834
 835     if (SANE_CALL( option_get_descriptor, &opt )) return;
 836
 837     selection = SendMessageW(control,CB_GETCURSEL,0,0);
 838     len = SendMessageW(control,CB_GETLBTEXTLEN,selection,0);
 839
 840     len++;
 841     value = malloc(len);
 842     SendMessageA(control,CB_GETLBTEXT,selection,(LPARAM)value);
 843
 844     if (opt.type == TYPE_STRING)
 845     {
 846         sane_option_set_value( opt.optno, value, &changed );
 847     }
 848     else if (opt.type == TYPE_INT)
 849     {
 850         int val = atoi( value );
 851         sane_option_set_value( opt.optno, &val, &changed );
 852     }
 853     if (changed) InitializeDialog(hwnd);
 854     free( value );
 855 }
 856
 857
 858 static INT_PTR CALLBACK DialogProc(HWND hwndDlg, UINT msg, WPARAM wParam, LPARAM lParam)
 859 {
 860     switch (msg)
 861     {
 862         case WM_INITDIALOG:
 863             return InitializeDialog(hwndDlg);
 864         case WM_HSCROLL:
 865             return ProcessScroll(hwndDlg, wParam, lParam);
 866         case WM_NOTIFY:
 867             {
 868                 LPPSHNOTIFY psn = (LPPSHNOTIFY)lParam;
 869                 switch (((NMHDR*)lParam)->code)
 870                 {
 871                     case PSN_APPLY:
 872                         if (psn->lParam)
 873                         {
 874                             activeDS.currentState = 6;
 875                             SANE_Notify(MSG_XFERREADY);
 876                         }
 877                         break;
 878                     case PSN_QUERYCANCEL:
 879                         SANE_Notify(MSG_CLOSEDSREQ);
 880                         break;
 881                     case PSN_SETACTIVE:
 882                         InitializeDialog(hwndDlg);
 883                         break;
 884                 }
 885                 break;
 886             }
 887         case WM_COMMAND:
 888             switch (HIWORD(wParam))
 889             {
 890                 case BN_CLICKED:
 891                     ButtonClicked(hwndDlg,LOWORD(wParam), (HWND)lParam);
 892                     break;
 893                 case CBN_SELCHANGE:
 894                     ComboChanged(hwndDlg,LOWORD(wParam), (HWND)lParam);
 895             }
 896     }
 897
 898     return FALSE;
 899 }
 900
 901 static int CALLBACK PropSheetProc(HWND hwnd, UINT msg, LPARAM lParam)
 902 {
 903     if (msg == PSCB_INITIALIZED)
 904     {
 905         /* rename OK button to Scan */
 906         HWND scan = GetDlgItem(hwnd,IDOK);
 907         SetWindowTextA(scan,"Scan");
 908     }
 909     return TRUE;
 910 }
 911
 912
 913 static INT_PTR CALLBACK ScanningProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
 914 {
 915     return FALSE;
 916 }
 917
 918 HWND ScanningDialogBox(HWND dialog, LONG progress)
 919 {
 920     if (!dialog)
 921         dialog = CreateDialogW(SANE_instance,
 922                 (LPWSTR)MAKEINTRESOURCE(IDD_DIALOG1), NULL, ScanningProc);
 923
 924     if (progress == -1)
 925     {
 926         EndDialog(dialog,0);
 927         return NULL;
 928     }
 929
 930     RedrawWindow(dialog,NULL,NULL,
 931             RDW_INTERNALPAINT|RDW_UPDATENOW|RDW_ALLCHILDREN);
 932
 933     return dialog;
 934 }