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
  29 #include "sane_i.h"
  30 #include "winuser.h"
  31 #include "winnls.h"
  32 #include "wingdi.h"
  33 #include "prsht.h"
  34 #include "wine/debug.h"
  35 #include "resource.h"
  36 #include "wine/unicode.h"
  37
  38 #ifdef SONAME_LIBSANE
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(twain);
  41
  42 #define ID_BASE 0x100
  43 #define ID_EDIT_BASE 0x1000
  44 #define ID_STATIC_BASE 0x2000
  45
  46 static INT_PTR CALLBACK DialogProc (HWND , UINT , WPARAM , LPARAM );
  47 static INT CALLBACK PropSheetProc(HWND, UINT,LPARAM);
  48
  49 static int create_leading_static(HDC hdc, LPCSTR text,
  50         LPDLGITEMTEMPLATEW* template_out, int y, int id)
  51 {
  52     LPDLGITEMTEMPLATEW tpl =  NULL;
  53     INT len;
  54     SIZE size;
  55     LPBYTE ptr;
  56     LONG base;
  57
  58     *template_out = NULL;
  59
  60     if (!text)
  61         return 0;
  62
  63     base = GetDialogBaseUnits();
  64
  65     len = MultiByteToWideChar(CP_ACP,0,text,-1,NULL,0);
  66     len *= sizeof(WCHAR);
  67     len += sizeof(DLGITEMTEMPLATE);
  68     len += 3*sizeof(WORD);
  69
  70     tpl = HeapAlloc(GetProcessHeap(),0,len);
  71     tpl->style=WS_VISIBLE;
  72     tpl->dwExtendedStyle = 0;
  73     tpl->x = 4;
  74     tpl->y = y;
  75     tpl->id = ID_BASE;
  76
  77     GetTextExtentPoint32A(hdc,text,lstrlenA(text),&size);
  78
  79     tpl->cx =  MulDiv(size.cx,4,LOWORD(base));
  80     tpl->cy =  MulDiv(size.cy,8,HIWORD(base)) * 2;
  81     ptr = (LPBYTE)tpl + sizeof(DLGITEMTEMPLATE);
  82     *(LPWORD)ptr = 0xffff;
  83     ptr += sizeof(WORD);
  84     *(LPWORD)ptr = 0x0082;
  85     ptr += sizeof(WORD);
  86     ptr += MultiByteToWideChar(CP_ACP,0,text,-1,(LPWSTR)ptr,len) * sizeof(WCHAR);
  87     *(LPWORD)ptr = 0x0000;
  88
  89     *template_out = tpl;
  90     return len;
  91 }
  92
  93 static int create_trailing_edit(HDC hdc, LPDLGITEMTEMPLATEW* template_out, int id,
  94         int y, LPCSTR text,BOOL is_int)
  95 {
  96     LPDLGITEMTEMPLATEW tpl =  NULL;
  97     INT len;
  98     LPBYTE ptr;
  99     SIZE size;
 100     LONG base;
 101     static const char int_base[] = "0000 xxx";
 102     static const char float_base[] = "0000.0000 xxx";
 103
 104     base = GetDialogBaseUnits();
 105
 106     len = MultiByteToWideChar(CP_ACP,0,text,-1,NULL,0);
 107     len *= sizeof(WCHAR);
 108     len += sizeof(DLGITEMTEMPLATE);
 109     len += 3*sizeof(WORD);
 110
 111     tpl = HeapAlloc(GetProcessHeap(),0,len);
 112     tpl->style=WS_VISIBLE|ES_READONLY|WS_BORDER;
 113     tpl->dwExtendedStyle = 0;
 114     tpl->x = 1;
 115     tpl->y = y;
 116     tpl->id = id;
 117
 118     if (is_int)
 119         GetTextExtentPoint32A(hdc,int_base,lstrlenA(int_base),&size);
 120     else
 121         GetTextExtentPoint32A(hdc,float_base,lstrlenA(float_base),&size);
 122
 123     tpl->cx =  MulDiv(size.cx*2,4,LOWORD(base));
 124     tpl->cy =  MulDiv(size.cy,8,HIWORD(base)) * 2;
 125
 126     ptr = (LPBYTE)tpl + sizeof(DLGITEMTEMPLATE);
 127     *(LPWORD)ptr = 0xffff;
 128     ptr += sizeof(WORD);
 129     *(LPWORD)ptr = 0x0081;
 130     ptr += sizeof(WORD);
 131     ptr += MultiByteToWideChar(CP_ACP,0,text,-1,(LPWSTR)ptr,len) * sizeof(WCHAR);
 132     *(LPWORD)ptr = 0x0000;
 133
 134     *template_out = tpl;
 135     return len;
 136 }
 137
 138
 139 static int create_item(HDC hdc, const SANE_Option_Descriptor *opt,
 140         INT id, LPDLGITEMTEMPLATEW *template_out, int y, int *cx, int* count)
 141 {
 142     LPDLGITEMTEMPLATEW tpl = NULL,rc = NULL;
 143     WORD class = 0xffff;
 144     DWORD styles = WS_VISIBLE;
 145     LPBYTE ptr = NULL;
 146     LPDLGITEMTEMPLATEW lead_static = NULL;
 147     LPDLGITEMTEMPLATEW trail_edit = NULL;
 148     DWORD leading_len = 0;
 149     DWORD trail_len = 0;
 150     DWORD local_len = 0;
 151     LPCSTR title = NULL;
 152     CHAR buffer[255];
 153     int padding = 0;
 154     int padding2 = 0;
 155     int base_x = 0;
 156     LONG base;
 157     int ctl_cx = 0;
 158     SIZE size;
 159
 160     GetTextExtentPoint32A(hdc,"X",1,&size);
 161     base = GetDialogBaseUnits();
 162     base_x = MulDiv(size.cx,4,LOWORD(base));
 163
 164     if (opt->type == SANE_TYPE_BOOL)
 165     {
 166         class = 0x0080; /* Button */
 167         styles |= BS_AUTOCHECKBOX;
 168         local_len += MultiByteToWideChar(CP_ACP,0,opt->title,-1,NULL,0);
 169         local_len *= sizeof(WCHAR);
 170         title = opt->title;
 171     }
 172     else if (opt->type == SANE_TYPE_INT)
 173     {
 174         SANE_Int i;
 175
 176         psane_control_option(activeDS.deviceHandle, id-ID_BASE,
 177                 SANE_ACTION_GET_VALUE, &i,NULL);
 178
 179         sprintf(buffer,"%i",i);
 180
 181         if (opt->constraint_type == SANE_CONSTRAINT_NONE)
 182         {
 183             class = 0x0081; /* Edit*/
 184             styles |= ES_NUMBER;
 185             title = buffer;
 186             local_len += MultiByteToWideChar(CP_ACP,0,title,-1,NULL,0);
 187             local_len *= sizeof(WCHAR);
 188         }
 189         else if (opt->constraint_type == SANE_CONSTRAINT_RANGE)
 190         {
 191             class = 0x0084; /* scroll */
 192             ctl_cx = 10 * base_x;
 193             trail_len += create_trailing_edit(hdc, &trail_edit, id +
 194                     ID_EDIT_BASE, y,buffer,TRUE);
 195         }
 196         else
 197         {
 198             class= 0x0085; /* Combo */
 199             ctl_cx = 10 * base_x;
 200             styles |= CBS_DROPDOWNLIST;
 201         }
 202         leading_len += create_leading_static(hdc, opt->title, &lead_static, y,
 203                 id+ID_STATIC_BASE);
 204     }
 205     else if (opt->type == SANE_TYPE_FIXED)
 206     {
 207         SANE_Fixed *i;
 208         double dd;
 209
 210         i = HeapAlloc(GetProcessHeap(),0,opt->size*sizeof(SANE_Word));
 211
 212         psane_control_option(activeDS.deviceHandle, id-ID_BASE,
 213                 SANE_ACTION_GET_VALUE, i, NULL);
 214
 215         dd = SANE_UNFIX(*i);
 216         sprintf(buffer,"%f",dd);
 217         HeapFree(GetProcessHeap(),0,i);
 218
 219         if (opt->constraint_type == SANE_CONSTRAINT_NONE)
 220         {
 221             class = 0x0081; /* Edit */
 222             title = buffer;
 223             local_len += MultiByteToWideChar(CP_ACP,0,title,-1,NULL,0);
 224             local_len *= sizeof(WCHAR);
 225         }
 226         else if (opt->constraint_type == SANE_CONSTRAINT_RANGE)
 227         {
 228             class= 0x0084; /* scroll */
 229             ctl_cx = 10 * base_x;
 230             trail_len += create_trailing_edit(hdc, &trail_edit, id +
 231                     ID_EDIT_BASE, y,buffer,FALSE);
 232         }
 233         else
 234         {
 235             class= 0x0085; /* Combo */
 236             ctl_cx = 10 * base_x;
 237             styles |= CBS_DROPDOWNLIST;
 238         }
 239         leading_len += create_leading_static(hdc, opt->title, &lead_static, y,
 240                 id+ID_STATIC_BASE);
 241     }
 242     else if (opt->type == SANE_TYPE_STRING)
 243     {
 244         if (opt->constraint_type == SANE_CONSTRAINT_NONE)
 245         {
 246             class = 0x0081; /* Edit*/
 247         }
 248         else
 249         {
 250             class= 0x0085; /* Combo */
 251             ctl_cx = opt->size * base_x;
 252             styles |= CBS_DROPDOWNLIST;
 253         }
 254         leading_len += create_leading_static(hdc, opt->title, &lead_static, y,
 255                 id+ID_STATIC_BASE);
 256         psane_control_option(activeDS.deviceHandle, id-ID_BASE,
 257                 SANE_ACTION_GET_VALUE, buffer,NULL);
 258
 259         title = buffer;
 260         local_len += MultiByteToWideChar(CP_ACP,0,title,-1,NULL,0);
 261         local_len *= sizeof(WCHAR);
 262     }
 263     else if (opt->type == SANE_TYPE_BUTTON)
 264     {
 265         class = 0x0080; /* Button */
 266         local_len += MultiByteToWideChar(CP_ACP,0,opt->title,-1,NULL,0);
 267         local_len *= sizeof(WCHAR);
 268         title = opt->title;
 269     }
 270     else if (opt->type == SANE_TYPE_GROUP)
 271     {
 272         class = 0x0080; /* Button */
 273         styles |= BS_GROUPBOX;
 274         local_len += MultiByteToWideChar(CP_ACP,0,opt->title,-1,NULL,0);
 275         local_len *= sizeof(WCHAR);
 276         title = opt->title;
 277     }
 278
 279     local_len += sizeof(DLGITEMTEMPLATE);
 280     if (title)
 281         local_len += 3*sizeof(WORD);
 282     else
 283         local_len += 4*sizeof(WORD);
 284
 285     if (lead_static)
 286     {
 287         padding = leading_len % sizeof(DWORD);
 288         rc = HeapReAlloc(GetProcessHeap(),0,lead_static,leading_len+local_len + padding);
 289         tpl = (LPDLGITEMTEMPLATEW)((LPBYTE)rc + leading_len + padding);
 290     }
 291     else
 292         rc = tpl = HeapAlloc(GetProcessHeap(),0,local_len);
 293
 294     tpl->style=styles;
 295     tpl->dwExtendedStyle = 0;
 296     if (lead_static)
 297         tpl->x = lead_static->x + lead_static->cx + 1;
 298     else if (opt->type == SANE_TYPE_GROUP)
 299         tpl->x = 2;
 300     else
 301         tpl->x = 4;
 302     tpl->y = y;
 303     tpl->id = id;
 304
 305     if (title)
 306     {
 307         GetTextExtentPoint32A(hdc,title,lstrlenA(title),&size);
 308         tpl->cx = size.cx;
 309         tpl->cy = size.cy;
 310     }
 311     else
 312     {
 313         if (lead_static)
 314             tpl->cy = lead_static->cy;
 315         else
 316             tpl->cy = 15;
 317
 318         if (!ctl_cx)
 319             ctl_cx = 15;
 320
 321         tpl->cx = ctl_cx;
 322     }
 323     ptr = (LPBYTE)tpl + sizeof(DLGITEMTEMPLATE);
 324     *(LPWORD)ptr = 0xffff;
 325     ptr += sizeof(WORD);
 326     *(LPWORD)ptr = class;
 327     ptr += sizeof(WORD);
 328     if (title)
 329     {
 330         ptr += MultiByteToWideChar(CP_ACP,0,title,-1,(LPWSTR)ptr,local_len) * sizeof(WCHAR);
 331     }
 332     else
 333     {
 334         *(LPWORD)ptr = 0x0000;
 335         ptr += sizeof(WORD);
 336     }
 337
 338     *((LPWORD)ptr) = 0x0000;
 339     ptr += sizeof(WORD);
 340
 341     if (trail_edit)
 342     {
 343         trail_edit->x = tpl->cx + tpl->x + 2;
 344         *cx = trail_edit->x + trail_edit->cx;
 345
 346         padding2 = (leading_len + local_len + padding)% sizeof(DWORD);
 347
 348         rc = HeapReAlloc(GetProcessHeap(),0,rc,leading_len+local_len + padding
 349                 +padding2+trail_len);
 350
 351         memcpy(((LPBYTE)rc) + leading_len + local_len + padding + padding2,
 352                 trail_edit,trail_len);
 353     }
 354     else
 355         *cx = tpl->cx + tpl->x;
 356
 357     *template_out = rc;
 358     if (leading_len)
 359         *count = 2;
 360     else
 361         *count = 1;
 362
 363     if (trail_edit)
 364         *count+=1;
 365
 366     return leading_len + local_len + padding + padding2 + trail_len;
 367 }
 368
 369
 370 static LPDLGTEMPLATEW create_options_page(HDC hdc, int *from_index,
 371                                           SANE_Int optcount, BOOL split_tabs)
 372 {
 373     int i;
 374     INT y = 2;
 375     LPDLGTEMPLATEW tpl = NULL;
 376     LPBYTE all_controls = NULL;
 377     DWORD control_len = 0;
 378     int max_cx = 0;
 379     int group_max_cx = 0;
 380     LPBYTE ptr;
 381     int group_offset = -1;
 382     INT control_count = 0;
 383
 384     for (i = *from_index; i < optcount; i++)
 385     {
 386         LPDLGITEMTEMPLATEW item_tpl = NULL;
 387         const SANE_Option_Descriptor *opt;
 388         int len;
 389         int padding = 0;
 390         int x;
 391         int count;
 392         int hold_for_group = 0;
 393
 394         opt = psane_get_option_descriptor(activeDS.deviceHandle, i);
 395         if (!opt)
 396             continue;
 397         if (opt->type == SANE_TYPE_GROUP && split_tabs)
 398         {
 399             if (control_len > 0)
 400             {
 401                 *from_index = i - 1;
 402                 goto exit;
 403             }
 404             else
 405             {
 406                 *from_index = i;
 407                 return NULL;
 408             }
 409         }
 410         if (!SANE_OPTION_IS_ACTIVE (opt->cap))
 411             continue;
 412
 413         len = create_item(hdc, opt, ID_BASE + i, &item_tpl, y, &x, &count);
 414
 415         control_count += count;
 416
 417         if (!len)
 418         {
 419             continue;
 420         }
 421
 422         hold_for_group = y;
 423         y+= item_tpl->cy + 1;
 424         max_cx = max(max_cx, x + 2);
 425         group_max_cx = max(group_max_cx, x );
 426
 427         padding = len % sizeof(DWORD);
 428
 429         if (all_controls)
 430         {
 431             LPBYTE newone;
 432             newone = HeapReAlloc(GetProcessHeap(),0,all_controls,
 433                     control_len + len + padding);
 434             all_controls = newone;
 435             memcpy(all_controls+control_len,item_tpl,len);
 436             memset(all_controls+control_len+len,0xca,padding);
 437             HeapFree(GetProcessHeap(),0,item_tpl);
 438         }
 439         else
 440         {
 441             if (!padding)
 442             {
 443                 all_controls = (LPBYTE)item_tpl;
 444             }
 445             else
 446             {
 447                 all_controls = HeapAlloc(GetProcessHeap(),0,len + padding);
 448                 memcpy(all_controls,item_tpl,len);
 449                 memset(all_controls+len,0xcb,padding);
 450                 HeapFree(GetProcessHeap(),0,item_tpl);
 451             }
 452         }
 453
 454         if (opt->type == SANE_TYPE_GROUP)
 455         {
 456             if (group_offset == -1)
 457             {
 458                 group_offset  = control_len;
 459                 group_max_cx = 0;
 460             }
 461             else
 462             {
 463                 LPDLGITEMTEMPLATEW group =
 464                     (LPDLGITEMTEMPLATEW)(all_controls+group_offset);
 465
 466                 group->cy = hold_for_group - group->y;
 467                 group->cx = group_max_cx;
 468
 469                 group = (LPDLGITEMTEMPLATEW)(all_controls+control_len);
 470                 group->y += 2;
 471                 y+=2;
 472                 group_max_cx = 0;
 473                 group_offset  = control_len;
 474             }
 475         }
 476
 477         control_len += len + padding;
 478     }
 479
 480     if ( group_offset && !split_tabs )
 481     {
 482         LPDLGITEMTEMPLATEW group =
 483             (LPDLGITEMTEMPLATEW)(all_controls+group_offset);
 484         group->cy = y - group->y;
 485         group->cx = group_max_cx;
 486         y+=2;
 487     }
 488
 489     *from_index = i-1;
 490 exit:
 491
 492     tpl = HeapAlloc(GetProcessHeap(),0,sizeof(DLGTEMPLATE) + 3*sizeof(WORD) +
 493             control_len);
 494
 495     tpl->style = WS_VISIBLE | WS_OVERLAPPEDWINDOW;
 496     tpl->dwExtendedStyle = 0;
 497     tpl->cdit = control_count;
 498     tpl->x = 0;
 499     tpl->y = 0;
 500     tpl->cx = max_cx + 10;
 501     tpl->cy = y + 10;
 502     ptr = (LPBYTE)tpl + sizeof(DLGTEMPLATE);
 503     *(LPWORD)ptr = 0x0000;
 504     ptr+=sizeof(WORD);
 505     *(LPWORD)ptr = 0x0000;
 506     ptr+=sizeof(WORD);
 507     *(LPWORD)ptr = 0x0000;
 508     ptr+=sizeof(WORD);
 509     memcpy(ptr,all_controls,control_len);
 510
 511     HeapFree(GetProcessHeap(),0,all_controls);
 512
 513     return tpl;
 514 }
 515
 516 BOOL DoScannerUI(void)
 517 {
 518     HDC hdc;
 519     PROPSHEETPAGEW psp[10];
 520     int page_count= 0;
 521     PROPSHEETHEADERW psh;
 522     int index = 1;
 523     SANE_Status rc;
 524     SANE_Int optcount;
 525     UINT psrc;
 526     LPWSTR szCaption;
 527     DWORD len;
 528
 529     hdc = GetDC(0);
 530
 531     memset(psp,0,sizeof(psp));
 532     rc = psane_control_option(activeDS.deviceHandle, 0, SANE_ACTION_GET_VALUE,
 533             &optcount, NULL);
 534     if (rc != SANE_STATUS_GOOD)
 535     {
 536         ERR("Unable to read number of options\n");
 537         return FALSE;
 538     }
 539
 540     while (index < optcount)
 541     {
 542         const SANE_Option_Descriptor *opt;
 543         psp[page_count].u.pResource = create_options_page(hdc, &index,
 544                 optcount, TRUE);
 545         opt = psane_get_option_descriptor(activeDS.deviceHandle, index);
 546
 547         if (opt->type == SANE_TYPE_GROUP)
 548         {
 549             LPWSTR title = NULL;
 550             INT len;
 551
 552             len = MultiByteToWideChar(CP_ACP,0,opt->title,-1,NULL,0);
 553             title = HeapAlloc(GetProcessHeap(),0,len * sizeof(WCHAR));
 554             MultiByteToWideChar(CP_ACP,0,opt->title,-1,title,len);
 555
 556             psp[page_count].pszTitle = title;
 557         }
 558
 559         if (psp[page_count].u.pResource)
 560         {
 561             psp[page_count].dwSize = sizeof(PROPSHEETPAGEW);
 562             psp[page_count].dwFlags =  PSP_DLGINDIRECT | PSP_USETITLE;
 563             psp[page_count].hInstance = SANE_instance;
 564             psp[page_count].pfnDlgProc = DialogProc;
 565             psp[page_count].lParam = (LPARAM)&activeDS;
 566             page_count ++;
 567         }
 568
 569         index ++;
 570     }
 571
 572     len = lstrlenA(activeDS.identity.Manufacturer)
 573          + lstrlenA(activeDS.identity.ProductName) + 2;
 574     szCaption = HeapAlloc(GetProcessHeap(),0,len *sizeof(WCHAR));
 575     MultiByteToWideChar(CP_ACP,0,activeDS.identity.Manufacturer,-1,
 576             szCaption,len);
 577     szCaption[lstrlenA(activeDS.identity.Manufacturer)] = ' ';
 578     MultiByteToWideChar(CP_ACP,0,activeDS.identity.ProductName,-1,
 579             &szCaption[lstrlenA(activeDS.identity.Manufacturer)+1],len);
 580     psh.dwSize = sizeof(PROPSHEETHEADERW);
 581     psh.dwFlags = PSH_PROPSHEETPAGE|PSH_PROPTITLE|PSH_USECALLBACK;
 582     psh.hwndParent = activeDS.hwndOwner;
 583     psh.hInstance = SANE_instance;
 584     psh.u.pszIcon = 0;
 585     psh.pszCaption = szCaption;
 586     psh.nPages = page_count;
 587     psh.u2.nStartPage = 0;
 588     psh.u3.ppsp = (LPCPROPSHEETPAGEW)psp;
 589     psh.pfnCallback = PropSheetProc;
 590
 591     psrc = PropertySheetW(&psh);
 592
 593     for(index = 0; index < page_count; index ++)
 594     {
 595         HeapFree(GetProcessHeap(),0,(LPBYTE)psp[index].u.pResource);
 596         HeapFree(GetProcessHeap(),0,(LPBYTE)psp[index].pszTitle);
 597     }
 598     HeapFree(GetProcessHeap(),0,szCaption);
 599
 600     if (psrc == IDOK)
 601         return TRUE;
 602     else
 603         return FALSE;
 604 }
 605
 606 static void UpdateRelevantEdit(HWND hwnd, const SANE_Option_Descriptor *opt,
 607         int index, int position)
 608 {
 609     WCHAR buffer[244];
 610     HWND edit_w;
 611     int len;
 612
 613     if (opt->type == SANE_TYPE_INT)
 614     {
 615         static const WCHAR formatW[] = {'%','i',0};
 616         INT si;
 617
 618         if (opt->constraint.range->quant)
 619             si = position * opt->constraint.range->quant;
 620         else
 621             si = position;
 622
 623         len = sprintfW( buffer, formatW, si );
 624     }
 625     else if  (opt->type == SANE_TYPE_FIXED)
 626     {
 627         static const WCHAR formatW[] = {'%','f',0};
 628         double s_quant, dd;
 629
 630         s_quant = SANE_UNFIX(opt->constraint.range->quant);
 631
 632         if (s_quant)
 633             dd = position * s_quant;
 634         else
 635             dd = position * 0.01;
 636
 637         len = sprintfW( buffer, formatW, dd );
 638     }
 639     else return;
 640
 641     buffer[len++] = ' ';
 642     LoadStringW( SANE_instance, opt->unit, buffer + len, sizeof(buffer)/sizeof(WCHAR) - len );
 643
 644     edit_w = GetDlgItem(hwnd,index+ID_BASE+ID_EDIT_BASE);
 645     if (edit_w) SetWindowTextW(edit_w,buffer);
 646
 647 }
 648
 649 static BOOL UpdateSaneScrollOption(
 650         const SANE_Option_Descriptor *opt, int index, DWORD position)
 651 {
 652     SANE_Status rc = SANE_STATUS_GOOD;
 653     SANE_Int result = 0;
 654
 655     if (opt->type == SANE_TYPE_INT)
 656     {
 657         SANE_Int si;
 658
 659         if (opt->constraint.range->quant)
 660             si = position * opt->constraint.range->quant;
 661         else
 662             si = position;
 663
 664         rc = psane_control_option (activeDS.deviceHandle,index,
 665             SANE_ACTION_SET_VALUE, &si, &result);
 666
 667     }
 668     else if  (opt->type == SANE_TYPE_FIXED)
 669     {
 670         double s_quant, dd;
 671         SANE_Fixed *sf;
 672
 673         s_quant = SANE_UNFIX(opt->constraint.range->quant);
 674
 675         if (s_quant)
 676             dd = position * s_quant;
 677         else
 678             dd = position * 0.01;
 679
 680         sf = HeapAlloc(GetProcessHeap(),0,opt->size*sizeof(SANE_Word));
 681
 682         *sf = SANE_FIX(dd);
 683
 684         rc = psane_control_option (activeDS.deviceHandle,index,
 685             SANE_ACTION_SET_VALUE, sf, &result);
 686
 687         HeapFree(GetProcessHeap(),0,sf);
 688     }
 689
 690     if(rc == SANE_STATUS_GOOD)
 691     {
 692         if (result & SANE_INFO_RELOAD_OPTIONS ||
 693                 result & SANE_INFO_RELOAD_PARAMS || result & SANE_INFO_INEXACT)
 694             return TRUE;
 695     }
 696     return FALSE;
 697 }
 698
 699 static BOOL UpdateSaneBoolOption(int index, BOOL position)
 700 {
 701     SANE_Status rc = SANE_STATUS_GOOD;
 702     SANE_Int result = 0;
 703     SANE_Bool si;
 704
 705     si = position;
 706
 707     rc = psane_control_option (activeDS.deviceHandle,index,
 708             SANE_ACTION_SET_VALUE, &si, &result);
 709
 710     if(rc == SANE_STATUS_GOOD)
 711     {
 712         if (result & SANE_INFO_RELOAD_OPTIONS ||
 713                 result & SANE_INFO_RELOAD_PARAMS || result & SANE_INFO_INEXACT)
 714             return TRUE;
 715     }
 716     return FALSE;
 717 }
 718
 719 static BOOL UpdateSaneStringOption(int index, SANE_String value)
 720 {
 721     SANE_Status rc = SANE_STATUS_GOOD;
 722     SANE_Int result = 0;
 723
 724     rc = psane_control_option (activeDS.deviceHandle,index,
 725             SANE_ACTION_SET_VALUE, value, &result);
 726
 727     if(rc == SANE_STATUS_GOOD)
 728     {
 729         if (result & SANE_INFO_RELOAD_OPTIONS ||
 730                 result & SANE_INFO_RELOAD_PARAMS || result & SANE_INFO_INEXACT)
 731             return TRUE;
 732     }
 733     return FALSE;
 734 }
 735
 736 static INT_PTR InitializeDialog(HWND hwnd)
 737 {
 738     SANE_Status rc;
 739     SANE_Int optcount;
 740     HWND control;
 741     int i;
 742
 743     rc = psane_control_option(activeDS.deviceHandle, 0, SANE_ACTION_GET_VALUE,
 744             &optcount, NULL);
 745     if (rc != SANE_STATUS_GOOD)
 746     {
 747         ERR("Unable to read number of options\n");
 748         return FALSE;
 749     }
 750
 751     for ( i = 1; i < optcount; i++)
 752     {
 753         const SANE_Option_Descriptor *opt;
 754
 755         control = GetDlgItem(hwnd,i+ID_BASE);
 756
 757         if (!control)
 758             continue;
 759
 760         opt = psane_get_option_descriptor(activeDS.deviceHandle, i);
 761
 762         TRACE("%i %s %i %i\n",i,opt->title,opt->type,opt->constraint_type);
 763
 764         if (!SANE_OPTION_IS_ACTIVE(opt->cap))
 765             EnableWindow(control,FALSE);
 766         else
 767             EnableWindow(control,TRUE);
 768
 769         SendMessageA(control,CB_RESETCONTENT,0,0);
 770         /* initialize values */
 771         if (opt->type == SANE_TYPE_STRING && opt->constraint_type !=
 772                 SANE_CONSTRAINT_NONE)
 773         {
 774             int j = 0;
 775             CHAR buffer[255];
 776             while (opt->constraint.string_list[j]!=NULL)
 777             {
 778                 SendMessageA(control,CB_ADDSTRING,0,
 779                         (LPARAM)opt->constraint.string_list[j]);
 780                 j++;
 781             }
 782             psane_control_option(activeDS.deviceHandle, i, SANE_ACTION_GET_VALUE, buffer,NULL);
 783             SendMessageA(control,CB_SELECTSTRING,0,(LPARAM)buffer);
 784         }
 785         else if (opt->type == SANE_TYPE_BOOL)
 786         {
 787             SANE_Bool b;
 788             psane_control_option(activeDS.deviceHandle, i,
 789                     SANE_ACTION_GET_VALUE, &b, NULL);
 790             if (b)
 791                 SendMessageA(control,BM_SETCHECK,BST_CHECKED,0);
 792
 793         }
 794         else if (opt->constraint_type == SANE_CONSTRAINT_RANGE)
 795         {
 796             if (opt->type == SANE_TYPE_INT)
 797             {
 798                 SANE_Int si;
 799                 int min,max;
 800
 801                 min = (SANE_Int)opt->constraint.range->min /
 802                     (((SANE_Int)opt->constraint.range->quant)?
 803                     (SANE_Int)opt->constraint.range->quant:1);
 804
 805                 max = (SANE_Int)opt->constraint.range->max /
 806                     (((SANE_Int)opt->constraint.range->quant)
 807                     ?(SANE_Int)opt->constraint.range->quant:1);
 808
 809                 SendMessageA(control,SBM_SETRANGE,min,max);
 810
 811                 psane_control_option(activeDS.deviceHandle, i,
 812                         SANE_ACTION_GET_VALUE, &si,NULL);
 813                 if (opt->constraint.range->quant)
 814                     si = si / opt->constraint.range->quant;
 815
 816                 SendMessageW(control,SBM_SETPOS, si, TRUE);
 817                 UpdateRelevantEdit(hwnd, opt, i, si);
 818             }
 819             else if (opt->type == SANE_TYPE_FIXED)
 820             {
 821                 SANE_Fixed *sf;
 822
 823                 double dd;
 824                 double s_min,s_max,s_quant;
 825                 INT pos;
 826                 int min,max;
 827
 828                 s_min = SANE_UNFIX(opt->constraint.range->min);
 829                 s_max = SANE_UNFIX(opt->constraint.range->max);
 830                 s_quant = SANE_UNFIX(opt->constraint.range->quant);
 831
 832                 if (s_quant)
 833                 {
 834                     min = (s_min / s_quant);
 835                     max = (s_max / s_quant);
 836                 }
 837                 else
 838                 {
 839                     min = s_min / 0.01;
 840                     max = s_max / 0.01;
 841                 }
 842
 843                 SendMessageA(control,SBM_SETRANGE,min,max);
 844
 845
 846                 sf = HeapAlloc(GetProcessHeap(),0,opt->size*sizeof(SANE_Word));
 847                 psane_control_option(activeDS.deviceHandle, i,
 848                         SANE_ACTION_GET_VALUE, sf,NULL);
 849
 850                 dd = SANE_UNFIX(*sf);
 851                 HeapFree(GetProcessHeap(),0,sf);
 852
 853                 /* Note that conversion of float -> SANE_Fixed is lossy;
 854                  *   and when you truncate it into an integer, you can get
 855                  *   unfortunate results.  This calculation attempts
 856                  *   to mitigate that harm */
 857                 if (s_quant)
 858                     pos = ((dd + (s_quant/2.0)) / s_quant);
 859                 else
 860                     pos = (dd + 0.005) / 0.01;
 861
 862                 SendMessageW(control, SBM_SETPOS, pos, TRUE);
 863
 864                 UpdateRelevantEdit(hwnd, opt, i, pos);
 865             }
 866         }
 867     }
 868
 869     return TRUE;
 870 }
 871
 872 static INT_PTR ProcessScroll(HWND hwnd, WPARAM wParam, LPARAM lParam)
 873 {
 874     int index;
 875     const SANE_Option_Descriptor *opt;
 876     WORD scroll;
 877     DWORD position;
 878
 879     index = GetDlgCtrlID((HWND)lParam)- ID_BASE;
 880     if (index < 0)
 881         return FALSE;
 882
 883     opt = psane_get_option_descriptor(activeDS.deviceHandle, index);
 884
 885     if (!opt)
 886         return FALSE;
 887
 888     scroll = LOWORD(wParam);
 889
 890     switch (scroll)
 891     {
 892         case SB_THUMBTRACK:
 893         case SB_THUMBPOSITION:
 894         {
 895             SCROLLINFO si;
 896             si.cbSize = sizeof(SCROLLINFO);
 897             si.fMask = SIF_TRACKPOS;
 898             GetScrollInfo((HWND)lParam,SB_CTL, &si);
 899             position = si.nTrackPos;
 900         }
 901             break;
 902         case SB_LEFT:
 903         case SB_LINELEFT:
 904         case SB_PAGELEFT:
 905             position = SendMessageW((HWND)lParam,SBM_GETPOS,0,0);
 906             position--;
 907             break;
 908         case SB_RIGHT:
 909         case SB_LINERIGHT:
 910         case SB_PAGERIGHT:
 911             position = SendMessageW((HWND)lParam,SBM_GETPOS,0,0);
 912             position++;
 913             break;
 914         default:
 915             position = SendMessageW((HWND)lParam,SBM_GETPOS,0,0);
 916     }
 917
 918     SendMessageW((HWND)lParam,SBM_SETPOS, position, TRUE);
 919     position = SendMessageW((HWND)lParam,SBM_GETPOS,0,0);
 920
 921     UpdateRelevantEdit(hwnd, opt, index, position);
 922     if (UpdateSaneScrollOption(opt, index, position))
 923         InitializeDialog(hwnd);
 924
 925     return TRUE;
 926 }
 927
 928
 929 static void ButtonClicked(HWND hwnd, INT id, HWND control)
 930 {
 931     int index;
 932     const SANE_Option_Descriptor *opt;
 933
 934     index = id - ID_BASE;
 935     if (index < 0)
 936         return;
 937
 938     opt = psane_get_option_descriptor(activeDS.deviceHandle, index);
 939
 940     if (!opt)
 941         return;
 942
 943     if (opt->type == SANE_TYPE_BOOL)
 944     {
 945         BOOL r = SendMessageW(control,BM_GETCHECK,0,0)==BST_CHECKED;
 946         if (UpdateSaneBoolOption(index, r))
 947                 InitializeDialog(hwnd);
 948     }
 949 }
 950
 951 static void ComboChanged(HWND hwnd, INT id, HWND control)
 952 {
 953     int index;
 954     int selection;
 955     int len;
 956     const SANE_Option_Descriptor *opt;
 957     SANE_String value;
 958
 959     index = id - ID_BASE;
 960     if (index < 0)
 961         return;
 962
 963     opt = psane_get_option_descriptor(activeDS.deviceHandle, index);
 964
 965     if (!opt)
 966         return;
 967
 968     selection = SendMessageW(control,CB_GETCURSEL,0,0);
 969     len = SendMessageW(control,CB_GETLBTEXTLEN,selection,0);
 970
 971     len++;
 972     value = HeapAlloc(GetProcessHeap(),0,len);
 973     SendMessageA(control,CB_GETLBTEXT,selection,(LPARAM)value);
 974
 975     if (opt->type == SANE_TYPE_STRING)
 976     {
 977         if (UpdateSaneStringOption(index, value))
 978                 InitializeDialog(hwnd);
 979     }
 980 }
 981
 982
 983 static INT_PTR CALLBACK DialogProc(HWND hwndDlg, UINT msg, WPARAM wParam, LPARAM lParam)
 984 {
 985     switch (msg)
 986     {
 987         case WM_INITDIALOG:
 988             return InitializeDialog(hwndDlg);
 989         case WM_HSCROLL:
 990             return ProcessScroll(hwndDlg, wParam, lParam);
 991         case WM_NOTIFY:
 992             {
 993                 LPPSHNOTIFY psn = (LPPSHNOTIFY)lParam;
 994                 switch (((NMHDR*)lParam)->code)
 995                 {
 996                     case PSN_APPLY:
 997                         if (psn->lParam)
 998                         {
 999                             activeDS.currentState = 6;
1000                             if (activeDS.windowMessage)
1001                                 PostMessageA(activeDS.hwndOwner, activeDS.windowMessage, MSG_XFERREADY, 0);
1002                         }
1003                         break;
1004                     case PSN_QUERYCANCEL:
1005                         if (activeDS.windowMessage)
1006                             PostMessageA(activeDS.hwndOwner, activeDS.windowMessage, MSG_CLOSEDSREQ, 0);
1007                         break;
1008                     case PSN_SETACTIVE:
1009                         InitializeDialog(hwndDlg);
1010                         break;
1011                 }
1012                 break;
1013             }
1014         case WM_COMMAND:
1015             switch (HIWORD(wParam))
1016             {
1017                 case BN_CLICKED:
1018                     ButtonClicked(hwndDlg,LOWORD(wParam), (HWND)lParam);
1019                     break;
1020                 case CBN_SELCHANGE:
1021                     ComboChanged(hwndDlg,LOWORD(wParam), (HWND)lParam);
1022             }
1023     }
1024
1025     return FALSE;
1026 }
1027
1028 static int CALLBACK PropSheetProc(HWND hwnd, UINT msg, LPARAM lParam)
1029 {
1030     if (msg == PSCB_INITIALIZED)
1031     {
1032         /* rename OK button to Scan */
1033         HWND scan = GetDlgItem(hwnd,IDOK);
1034         SetWindowTextA(scan,"Scan");
1035     }
1036     return TRUE;
1037 }
1038
1039
1040 static INT_PTR CALLBACK ScanningProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
1041 {
1042     return FALSE;
1043 }
1044
1045 HWND ScanningDialogBox(HWND dialog, LONG progress)
1046 {
1047     if (!dialog)
1048         dialog = CreateDialogW(SANE_instance,
1049                 (LPWSTR)MAKEINTRESOURCE(IDD_DIALOG1), NULL, ScanningProc);
1050
1051     if (progress == -1)
1052     {
1053         EndDialog(dialog,0);
1054         return NULL;
1055     }
1056
1057     RedrawWindow(dialog,NULL,NULL,
1058             RDW_INTERNALPAINT|RDW_UPDATENOW|RDW_ALLCHILDREN);
1059
1060     return dialog;
1061 }
1062
1063 #else  /* SONAME_LIBSANE */
1064
1065 BOOL DoScannerUI(void)
1066 {
1067     return FALSE;
1068 }
1069
1070 #endif  /* SONAME_LIBSANE */