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 #include "wine/unicode.h"
  40
  41 #ifdef SONAME_LIBSANE
  42
  43 WINE_DEFAULT_DEBUG_CHANNEL(twain);
  44
  45 #define ID_BASE 0x100
  46 #define ID_EDIT_BASE 0x1000
  47 #define ID_STATIC_BASE 0x2000
  48
  49 static INT_PTR CALLBACK DialogProc (HWND , UINT , WPARAM , LPARAM );
  50 static INT CALLBACK PropSheetProc(HWND, UINT,LPARAM);
  51
  52 static int create_leading_static(HDC hdc, LPCSTR text,
  53         LPDLGITEMTEMPLATEW* template_out, int y, int id)
  54 {
  55     LPDLGITEMTEMPLATEW tpl =  NULL;
  56     INT len;
  57     SIZE size;
  58     LPBYTE ptr;
  59     LONG base;
  60
  61     *template_out = NULL;
  62
  63     if (!text)
  64         return 0;
  65
  66     base = GetDialogBaseUnits();
  67
  68     len = MultiByteToWideChar(CP_ACP,0,text,-1,NULL,0);
  69     len *= sizeof(WCHAR);
  70     len += sizeof(DLGITEMTEMPLATE);
  71     len += 3*sizeof(WORD);
  72
  73     tpl = HeapAlloc(GetProcessHeap(),0,len);
  74     tpl->style=WS_VISIBLE;
  75     tpl->dwExtendedStyle = 0;
  76     tpl->x = 4;
  77     tpl->y = y;
  78     tpl->id = ID_BASE;
  79
  80     GetTextExtentPoint32A(hdc,text,lstrlenA(text),&size);
  81
  82     tpl->cx =  MulDiv(size.cx,4,LOWORD(base));
  83     tpl->cy =  MulDiv(size.cy,8,HIWORD(base)) * 2;
  84     ptr = (LPBYTE)tpl + sizeof(DLGITEMTEMPLATE);
  85     *(LPWORD)ptr = 0xffff;
  86     ptr += sizeof(WORD);
  87     *(LPWORD)ptr = 0x0082;
  88     ptr += sizeof(WORD);
  89     ptr += MultiByteToWideChar(CP_ACP,0,text,-1,(LPWSTR)ptr,len) * sizeof(WCHAR);
  90     *(LPWORD)ptr = 0x0000;
  91
  92     *template_out = tpl;
  93     return len;
  94 }
  95
  96 static int create_trailing_edit(HDC hdc, LPDLGITEMTEMPLATEW* template_out, int id,
  97         int y, LPCSTR text,BOOL is_int)
  98 {
  99     LPDLGITEMTEMPLATEW tpl =  NULL;
 100     INT len;
 101     LPBYTE ptr;
 102     SIZE size;
 103     LONG base;
 104     static const char int_base[] = "0000 xxx";
 105     static const char float_base[] = "0000.0000 xxx";
 106
 107     base = GetDialogBaseUnits();
 108
 109     len = MultiByteToWideChar(CP_ACP,0,text,-1,NULL,0);
 110     len *= sizeof(WCHAR);
 111     len += sizeof(DLGITEMTEMPLATE);
 112     len += 3*sizeof(WORD);
 113
 114     tpl = HeapAlloc(GetProcessHeap(),0,len);
 115     tpl->style=WS_VISIBLE|ES_READONLY|WS_BORDER;
 116     tpl->dwExtendedStyle = 0;
 117     tpl->x = 1;
 118     tpl->y = y;
 119     tpl->id = id;
 120
 121     if (is_int)
 122         GetTextExtentPoint32A(hdc,int_base,lstrlenA(int_base),&size);
 123     else
 124         GetTextExtentPoint32A(hdc,float_base,lstrlenA(float_base),&size);
 125
 126     tpl->cx =  MulDiv(size.cx*2,4,LOWORD(base));
 127     tpl->cy =  MulDiv(size.cy,8,HIWORD(base)) * 2;
 128
 129     ptr = (LPBYTE)tpl + sizeof(DLGITEMTEMPLATE);
 130     *(LPWORD)ptr = 0xffff;
 131     ptr += sizeof(WORD);
 132     *(LPWORD)ptr = 0x0081;
 133     ptr += sizeof(WORD);
 134     ptr += MultiByteToWideChar(CP_ACP,0,text,-1,(LPWSTR)ptr,len) * sizeof(WCHAR);
 135     *(LPWORD)ptr = 0x0000;
 136
 137     *template_out = tpl;
 138     return len;
 139 }
 140
 141
 142 static int create_item(HDC hdc, const SANE_Option_Descriptor *opt,
 143         INT id, LPDLGITEMTEMPLATEW *template_out, int y, int *cx, int* count)
 144 {
 145     LPDLGITEMTEMPLATEW tpl = NULL,rc = NULL;
 146     WORD class = 0xffff;
 147     DWORD styles = WS_VISIBLE;
 148     LPBYTE ptr = NULL;
 149     LPDLGITEMTEMPLATEW lead_static = NULL;
 150     LPDLGITEMTEMPLATEW trail_edit = NULL;
 151     DWORD leading_len = 0;
 152     DWORD trail_len = 0;
 153     DWORD local_len = 0;
 154     LPCSTR title = NULL;
 155     CHAR buffer[255];
 156     int padding = 0;
 157     int padding2 = 0;
 158     int base_x = 0;
 159     LONG base;
 160     int ctl_cx = 0;
 161     SIZE size;
 162
 163     GetTextExtentPoint32A(hdc,"X",1,&size);
 164     base = GetDialogBaseUnits();
 165     base_x = MulDiv(size.cx,4,LOWORD(base));
 166
 167     if (opt->type == SANE_TYPE_BOOL)
 168     {
 169         class = 0x0080; /* Button */
 170         styles |= BS_AUTOCHECKBOX;
 171         local_len += MultiByteToWideChar(CP_ACP,0,opt->title,-1,NULL,0);
 172         local_len *= sizeof(WCHAR);
 173         title = opt->title;
 174     }
 175     else if (opt->type == SANE_TYPE_INT)
 176     {
 177         SANE_Int i;
 178
 179         psane_control_option(activeDS.deviceHandle, id-ID_BASE,
 180                 SANE_ACTION_GET_VALUE, &i,NULL);
 181
 182         sprintf(buffer,"%i",i);
 183
 184         if (opt->constraint_type == SANE_CONSTRAINT_NONE)
 185         {
 186             class = 0x0081; /* Edit*/
 187             styles |= ES_NUMBER;
 188             title = buffer;
 189             local_len += MultiByteToWideChar(CP_ACP,0,title,-1,NULL,0);
 190             local_len *= sizeof(WCHAR);
 191         }
 192         else if (opt->constraint_type == SANE_CONSTRAINT_RANGE)
 193         {
 194             class = 0x0084; /* scroll */
 195             ctl_cx = 10 * base_x;
 196             trail_len += create_trailing_edit(hdc, &trail_edit, id +
 197                     ID_EDIT_BASE, y,buffer,TRUE);
 198         }
 199         else
 200         {
 201             class= 0x0085; /* Combo */
 202             ctl_cx = 10 * base_x;
 203             styles |= CBS_DROPDOWNLIST;
 204         }
 205         leading_len += create_leading_static(hdc, opt->title, &lead_static, y,
 206                 id+ID_STATIC_BASE);
 207     }
 208     else if (opt->type == SANE_TYPE_FIXED)
 209     {
 210         SANE_Fixed *i;
 211         double dd;
 212
 213         i = HeapAlloc(GetProcessHeap(),0,opt->size*sizeof(SANE_Word));
 214
 215         psane_control_option(activeDS.deviceHandle, id-ID_BASE,
 216                 SANE_ACTION_GET_VALUE, i, NULL);
 217
 218         dd = SANE_UNFIX(*i);
 219         sprintf(buffer,"%f",dd);
 220         HeapFree(GetProcessHeap(),0,i);
 221
 222         if (opt->constraint_type == SANE_CONSTRAINT_NONE)
 223         {
 224             class = 0x0081; /* Edit */
 225             title = buffer;
 226             local_len += MultiByteToWideChar(CP_ACP,0,title,-1,NULL,0);
 227             local_len *= sizeof(WCHAR);
 228         }
 229         else if (opt->constraint_type == SANE_CONSTRAINT_RANGE)
 230         {
 231             class= 0x0084; /* scroll */
 232             ctl_cx = 10 * base_x;
 233             trail_len += create_trailing_edit(hdc, &trail_edit, id +
 234                     ID_EDIT_BASE, y,buffer,FALSE);
 235         }
 236         else
 237         {
 238             class= 0x0085; /* Combo */
 239             ctl_cx = 10 * base_x;
 240             styles |= CBS_DROPDOWNLIST;
 241         }
 242         leading_len += create_leading_static(hdc, opt->title, &lead_static, y,
 243                 id+ID_STATIC_BASE);
 244     }
 245     else if (opt->type == SANE_TYPE_STRING)
 246     {
 247         if (opt->constraint_type == SANE_CONSTRAINT_NONE)
 248         {
 249             class = 0x0081; /* Edit*/
 250         }
 251         else
 252         {
 253             class= 0x0085; /* Combo */
 254             ctl_cx = opt->size * base_x;
 255             styles |= CBS_DROPDOWNLIST;
 256         }
 257         leading_len += create_leading_static(hdc, opt->title, &lead_static, y,
 258                 id+ID_STATIC_BASE);
 259         psane_control_option(activeDS.deviceHandle, id-ID_BASE,
 260                 SANE_ACTION_GET_VALUE, buffer,NULL);
 261
 262         title = buffer;
 263         local_len += MultiByteToWideChar(CP_ACP,0,title,-1,NULL,0);
 264         local_len *= sizeof(WCHAR);
 265     }
 266     else if (opt->type == SANE_TYPE_BUTTON)
 267     {
 268         class = 0x0080; /* Button */
 269         local_len += MultiByteToWideChar(CP_ACP,0,opt->title,-1,NULL,0);
 270         local_len *= sizeof(WCHAR);
 271         title = opt->title;
 272     }
 273     else if (opt->type == SANE_TYPE_GROUP)
 274     {
 275         class = 0x0080; /* Button */
 276         styles |= BS_GROUPBOX;
 277         local_len += MultiByteToWideChar(CP_ACP,0,opt->title,-1,NULL,0);
 278         local_len *= sizeof(WCHAR);
 279         title = opt->title;
 280     }
 281
 282     local_len += sizeof(DLGITEMTEMPLATE);
 283     if (title)
 284         local_len += 3*sizeof(WORD);
 285     else
 286         local_len += 4*sizeof(WORD);
 287
 288     if (lead_static)
 289     {
 290         padding = leading_len % sizeof(DWORD);
 291         rc = HeapReAlloc(GetProcessHeap(),0,lead_static,leading_len+local_len + padding);
 292         tpl = (LPDLGITEMTEMPLATEW)((LPBYTE)rc + leading_len + padding);
 293     }
 294     else
 295         rc = tpl = HeapAlloc(GetProcessHeap(),0,local_len);
 296
 297     tpl->style=styles;
 298     tpl->dwExtendedStyle = 0;
 299     if (lead_static)
 300         tpl->x = lead_static->x + lead_static->cx + 1;
 301     else if (opt->type == SANE_TYPE_GROUP)
 302         tpl->x = 2;
 303     else
 304         tpl->x = 4;
 305     tpl->y = y;
 306     tpl->id = id;
 307
 308     if (title)
 309     {
 310         GetTextExtentPoint32A(hdc,title,lstrlenA(title),&size);
 311         tpl->cx = size.cx;
 312         tpl->cy = size.cy;
 313     }
 314     else
 315     {
 316         if (lead_static)
 317             tpl->cy = lead_static->cy;
 318         else
 319             tpl->cy = 15;
 320
 321         if (!ctl_cx)
 322             ctl_cx = 15;
 323
 324         tpl->cx = ctl_cx;
 325     }
 326     ptr = (LPBYTE)tpl + sizeof(DLGITEMTEMPLATE);
 327     *(LPWORD)ptr = 0xffff;
 328     ptr += sizeof(WORD);
 329     *(LPWORD)ptr = class;
 330     ptr += sizeof(WORD);
 331     if (title)
 332     {
 333         ptr += MultiByteToWideChar(CP_ACP,0,title,-1,(LPWSTR)ptr,local_len) * sizeof(WCHAR);
 334     }
 335     else
 336     {
 337         *(LPWORD)ptr = 0x0000;
 338         ptr += sizeof(WORD);
 339     }
 340
 341     *((LPWORD)ptr) = 0x0000;
 342     ptr += sizeof(WORD);
 343
 344     if (trail_edit)
 345     {
 346         trail_edit->x = tpl->cx + tpl->x + 2;
 347         *cx = trail_edit->x + trail_edit->cx;
 348
 349         padding2 = (leading_len + local_len + padding)% sizeof(DWORD);
 350
 351         rc = HeapReAlloc(GetProcessHeap(),0,rc,leading_len+local_len + padding
 352                 +padding2+trail_len);
 353
 354         memcpy(((LPBYTE)rc) + leading_len + local_len + padding + padding2,
 355                 trail_edit,trail_len);
 356     }
 357     else
 358         *cx = tpl->cx + tpl->x;
 359
 360     *template_out = rc;
 361     if (leading_len)
 362         *count = 2;
 363     else
 364         *count = 1;
 365
 366     if (trail_edit)
 367         *count+=1;
 368
 369     return leading_len + local_len + padding + padding2 + trail_len;
 370 }
 371
 372
 373 static LPDLGTEMPLATEW create_options_page(HDC hdc, int *from_index,
 374                                           SANE_Int optcount, BOOL split_tabs)
 375 {
 376     int i;
 377     INT y = 2;
 378     LPDLGTEMPLATEW tpl = NULL;
 379     LPBYTE all_controls = NULL;
 380     DWORD control_len = 0;
 381     int max_cx = 0;
 382     int group_max_cx = 0;
 383     LPBYTE ptr;
 384     int group_offset = -1;
 385     INT control_count = 0;
 386
 387     for (i = *from_index; i < optcount; i++)
 388     {
 389         LPDLGITEMTEMPLATEW item_tpl = NULL;
 390         const SANE_Option_Descriptor *opt;
 391         int len;
 392         int padding = 0;
 393         int x;
 394         int count;
 395         int hold_for_group = 0;
 396
 397         opt = psane_get_option_descriptor(activeDS.deviceHandle, i);
 398         if (!opt)
 399             continue;
 400         if (opt->type == SANE_TYPE_GROUP && split_tabs)
 401         {
 402             if (control_len > 0)
 403             {
 404                 *from_index = i - 1;
 405                 goto exit;
 406             }
 407             else
 408             {
 409                 *from_index = i;
 410                 return NULL;
 411             }
 412         }
 413         if (!SANE_OPTION_IS_ACTIVE (opt->cap))
 414             continue;
 415
 416         len = create_item(hdc, opt, ID_BASE + i, &item_tpl, y, &x, &count);
 417
 418         control_count += count;
 419
 420         if (!len)
 421         {
 422             continue;
 423         }
 424
 425         hold_for_group = y;
 426         y+= item_tpl->cy + 1;
 427         max_cx = max(max_cx, x + 2);
 428         group_max_cx = max(group_max_cx, x );
 429
 430         padding = len % sizeof(DWORD);
 431
 432         if (all_controls)
 433         {
 434             LPBYTE newone;
 435             newone = HeapReAlloc(GetProcessHeap(),0,all_controls,
 436                     control_len + len + padding);
 437             all_controls = newone;
 438             memcpy(all_controls+control_len,item_tpl,len);
 439             memset(all_controls+control_len+len,0xca,padding);
 440             HeapFree(GetProcessHeap(),0,item_tpl);
 441         }
 442         else
 443         {
 444             if (!padding)
 445             {
 446                 all_controls = (LPBYTE)item_tpl;
 447             }
 448             else
 449             {
 450                 all_controls = HeapAlloc(GetProcessHeap(),0,len + padding);
 451                 memcpy(all_controls,item_tpl,len);
 452                 memset(all_controls+len,0xcb,padding);
 453                 HeapFree(GetProcessHeap(),0,item_tpl);
 454             }
 455         }
 456
 457         if (opt->type == SANE_TYPE_GROUP)
 458         {
 459             if (group_offset == -1)
 460             {
 461                 group_offset  = control_len;
 462                 group_max_cx = 0;
 463             }
 464             else
 465             {
 466                 LPDLGITEMTEMPLATEW group =
 467                     (LPDLGITEMTEMPLATEW)(all_controls+group_offset);
 468
 469                 group->cy = hold_for_group - group->y;
 470                 group->cx = group_max_cx;
 471
 472                 group = (LPDLGITEMTEMPLATEW)(all_controls+control_len);
 473                 group->y += 2;
 474                 y+=2;
 475                 group_max_cx = 0;
 476                 group_offset  = control_len;
 477             }
 478         }
 479
 480         control_len += len + padding;
 481     }
 482
 483     if ( group_offset && !split_tabs )
 484     {
 485         LPDLGITEMTEMPLATEW group =
 486             (LPDLGITEMTEMPLATEW)(all_controls+group_offset);
 487         group->cy = y - group->y;
 488         group->cx = group_max_cx;
 489         y+=2;
 490     }
 491
 492     *from_index = i-1;
 493 exit:
 494
 495     tpl = HeapAlloc(GetProcessHeap(),0,sizeof(DLGTEMPLATE) + 3*sizeof(WORD) +
 496             control_len);
 497
 498     tpl->style = WS_VISIBLE | WS_OVERLAPPEDWINDOW;
 499     tpl->dwExtendedStyle = 0;
 500     tpl->cdit = control_count;
 501     tpl->x = 0;
 502     tpl->y = 0;
 503     tpl->cx = max_cx + 10;
 504     tpl->cy = y + 10;
 505     ptr = (LPBYTE)tpl + sizeof(DLGTEMPLATE);
 506     *(LPWORD)ptr = 0x0000;
 507     ptr+=sizeof(WORD);
 508     *(LPWORD)ptr = 0x0000;
 509     ptr+=sizeof(WORD);
 510     *(LPWORD)ptr = 0x0000;
 511     ptr+=sizeof(WORD);
 512     memcpy(ptr,all_controls,control_len);
 513
 514     HeapFree(GetProcessHeap(),0,all_controls);
 515
 516     return tpl;
 517 }
 518
 519 BOOL DoScannerUI(void)
 520 {
 521     HDC hdc;
 522     PROPSHEETPAGEW psp[10];
 523     int page_count= 0;
 524     PROPSHEETHEADERW psh;
 525     int index = 1;
 526     SANE_Status rc;
 527     SANE_Int optcount;
 528     UINT psrc;
 529     LPWSTR szCaption;
 530     DWORD len;
 531
 532     hdc = GetDC(0);
 533
 534     memset(&psp,0,sizeof(psp));
 535     rc = psane_control_option(activeDS.deviceHandle, 0, SANE_ACTION_GET_VALUE,
 536             &optcount, NULL);
 537     if (rc != SANE_STATUS_GOOD)
 538     {
 539         ERR("Unable to read number of options\n");
 540         return FALSE;
 541     }
 542
 543     while (index < optcount)
 544     {
 545         const SANE_Option_Descriptor *opt;
 546         psp[page_count].u.pResource = create_options_page(hdc, &index,
 547                 optcount, TRUE);
 548         opt = psane_get_option_descriptor(activeDS.deviceHandle, index);
 549
 550         if (opt->type == SANE_TYPE_GROUP)
 551         {
 552             LPWSTR title = NULL;
 553             INT len;
 554
 555             len = MultiByteToWideChar(CP_ACP,0,opt->title,-1,NULL,0);
 556             title = HeapAlloc(GetProcessHeap(),0,len * sizeof(WCHAR));
 557             MultiByteToWideChar(CP_ACP,0,opt->title,-1,title,len);
 558
 559             psp[page_count].pszTitle = title;
 560         }
 561
 562         if (psp[page_count].u.pResource)
 563         {
 564             psp[page_count].dwSize = sizeof(PROPSHEETPAGEW);
 565             psp[page_count].dwFlags =  PSP_DLGINDIRECT | PSP_USETITLE;
 566             psp[page_count].hInstance = SANE_instance;
 567             psp[page_count].pfnDlgProc = DialogProc;
 568             psp[page_count].lParam = (LPARAM)&activeDS;
 569             page_count ++;
 570         }
 571
 572         index ++;
 573     }
 574
 575     len = lstrlenA(activeDS.identity.Manufacturer)
 576          + lstrlenA(activeDS.identity.ProductName) + 2;
 577     szCaption = HeapAlloc(GetProcessHeap(),0,len *sizeof(WCHAR));
 578     MultiByteToWideChar(CP_ACP,0,activeDS.identity.Manufacturer,-1,
 579             szCaption,len);
 580     szCaption[lstrlenA(activeDS.identity.Manufacturer)] = ' ';
 581     MultiByteToWideChar(CP_ACP,0,activeDS.identity.ProductName,-1,
 582             &szCaption[lstrlenA(activeDS.identity.Manufacturer)+1],len);
 583     psh.dwSize = sizeof(PROPSHEETHEADERW);
 584     psh.dwFlags = PSH_PROPSHEETPAGE|PSH_PROPTITLE|PSH_USECALLBACK;
 585     psh.hwndParent = activeDS.hwndOwner;
 586     psh.hInstance = SANE_instance;
 587     psh.u.pszIcon = 0;
 588     psh.pszCaption = szCaption;
 589     psh.nPages = page_count;
 590     psh.u2.nStartPage = 0;
 591     psh.u3.ppsp = (LPCPROPSHEETPAGEW) &psp;
 592     psh.pfnCallback = PropSheetProc;
 593
 594     psrc = PropertySheetW(&psh);
 595
 596     for(index = 0; index < page_count; index ++)
 597     {
 598         HeapFree(GetProcessHeap(),0,(LPBYTE)psp[index].u.pResource);
 599         HeapFree(GetProcessHeap(),0,(LPBYTE)psp[index].pszTitle);
 600     }
 601     HeapFree(GetProcessHeap(),0,szCaption);
 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     WCHAR buffer[244];
 613     HWND edit_w;
 614     int len;
 615
 616     if (opt->type == SANE_TYPE_INT)
 617     {
 618         static const WCHAR formatW[] = {'%','i',0};
 619         INT si;
 620
 621         if (opt->constraint.range->quant)
 622             si = position * opt->constraint.range->quant;
 623         else
 624             si = position;
 625
 626         len = sprintfW( buffer, formatW, si );
 627     }
 628     else if  (opt->type == SANE_TYPE_FIXED)
 629     {
 630         static const WCHAR formatW[] = {'%','f',0};
 631         double s_quant, dd;
 632
 633         s_quant = SANE_UNFIX(opt->constraint.range->quant);
 634
 635         if (s_quant)
 636             dd = position * s_quant;
 637         else
 638             dd = position * 0.01;
 639
 640         len = sprintfW( buffer, formatW, dd );
 641     }
 642     else return;
 643
 644     buffer[len++] = ' ';
 645     LoadStringW( SANE_instance, opt->unit, buffer + len, sizeof(buffer)/sizeof(WCHAR) - len );
 646
 647     edit_w = GetDlgItem(hwnd,index+ID_BASE+ID_EDIT_BASE);
 648     if (edit_w) SetWindowTextW(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 = psane_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 = psane_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 = psane_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 = psane_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 = psane_control_option(activeDS.deviceHandle, 0, SANE_ACTION_GET_VALUE,
 747             &optcount, NULL);
 748     if (rc != SANE_STATUS_GOOD)
 749     {
 750         ERR("Unable to read number of options\n");
 751         return FALSE;
 752     }
 753
 754     for ( i = 1; i < optcount; i++)
 755     {
 756         const SANE_Option_Descriptor *opt;
 757
 758         control = GetDlgItem(hwnd,i+ID_BASE);
 759
 760         if (!control)
 761             continue;
 762
 763         opt = psane_get_option_descriptor(activeDS.deviceHandle, i);
 764
 765         TRACE("%i %s %i %i\n",i,opt->title,opt->type,opt->constraint_type);
 766
 767         if (!SANE_OPTION_IS_ACTIVE(opt->cap))
 768             EnableWindow(control,FALSE);
 769         else
 770             EnableWindow(control,TRUE);
 771
 772         SendMessageA(control,CB_RESETCONTENT,0,0);
 773         /* initialize values */
 774         if (opt->type == SANE_TYPE_STRING && opt->constraint_type !=
 775                 SANE_CONSTRAINT_NONE)
 776         {
 777             int j = 0;
 778             CHAR buffer[255];
 779             while (opt->constraint.string_list[j]!=NULL)
 780             {
 781                 SendMessageA(control,CB_ADDSTRING,0,
 782                         (LPARAM)opt->constraint.string_list[j]);
 783                 j++;
 784             }
 785             psane_control_option(activeDS.deviceHandle, i, SANE_ACTION_GET_VALUE, buffer,NULL);
 786             SendMessageA(control,CB_SELECTSTRING,0,(LPARAM)buffer);
 787         }
 788         else if (opt->type == SANE_TYPE_BOOL)
 789         {
 790             SANE_Bool b;
 791             psane_control_option(activeDS.deviceHandle, i,
 792                     SANE_ACTION_GET_VALUE, &b, NULL);
 793             if (b)
 794                 SendMessageA(control,BM_SETCHECK,BST_CHECKED,0);
 795
 796         }
 797         else if (opt->constraint_type == SANE_CONSTRAINT_RANGE)
 798         {
 799             if (opt->type == SANE_TYPE_INT)
 800             {
 801                 SANE_Int si;
 802                 int min,max;
 803
 804                 min = (SANE_Int)opt->constraint.range->min /
 805                     (((SANE_Int)opt->constraint.range->quant)?
 806                     (SANE_Int)opt->constraint.range->quant:1);
 807
 808                 max = (SANE_Int)opt->constraint.range->max /
 809                     (((SANE_Int)opt->constraint.range->quant)
 810                     ?(SANE_Int)opt->constraint.range->quant:1);
 811
 812                 SendMessageA(control,SBM_SETRANGE,min,max);
 813
 814                 psane_control_option(activeDS.deviceHandle, i,
 815                         SANE_ACTION_GET_VALUE, &si,NULL);
 816                 if (opt->constraint.range->quant)
 817                     si = si / opt->constraint.range->quant;
 818
 819                 SendMessageW(control,SBM_SETPOS, si, TRUE);
 820                 UpdateRelevantEdit(hwnd, opt, i, si);
 821             }
 822             else if (opt->type == SANE_TYPE_FIXED)
 823             {
 824                 SANE_Fixed *sf;
 825
 826                 double dd;
 827                 double s_min,s_max,s_quant;
 828                 INT pos;
 829                 int min,max;
 830
 831                 s_min = SANE_UNFIX(opt->constraint.range->min);
 832                 s_max = SANE_UNFIX(opt->constraint.range->max);
 833                 s_quant = SANE_UNFIX(opt->constraint.range->quant);
 834
 835                 if (s_quant)
 836                 {
 837                     min = (s_min / s_quant);
 838                     max = (s_max / s_quant);
 839                 }
 840                 else
 841                 {
 842                     min = s_min / 0.01;
 843                     max = s_max / 0.01;
 844                 }
 845
 846                 SendMessageA(control,SBM_SETRANGE,min,max);
 847
 848
 849                 sf = HeapAlloc(GetProcessHeap(),0,opt->size*sizeof(SANE_Word));
 850                 psane_control_option(activeDS.deviceHandle, i,
 851                         SANE_ACTION_GET_VALUE, sf,NULL);
 852
 853                 dd = SANE_UNFIX(*sf);
 854                 HeapFree(GetProcessHeap(),0,sf);
 855
 856                 /* Note that conversion of float -> SANE_Fixed is lossy;
 857                  *   and when you truncate it into an integer, you can get
 858                  *   unfortunate results.  This calculation attempts
 859                  *   to mitigate that harm */
 860                 if (s_quant)
 861                     pos = ((dd + (s_quant/2.0)) / s_quant);
 862                 else
 863                     pos = (dd + 0.005) / 0.01;
 864
 865                 SendMessageW(control, SBM_SETPOS, pos, TRUE);
 866
 867                 UpdateRelevantEdit(hwnd, opt, i, pos);
 868             }
 869         }
 870     }
 871
 872     return TRUE;
 873 }
 874
 875 static INT_PTR ProcessScroll(HWND hwnd, WPARAM wParam, LPARAM lParam)
 876 {
 877     int index;
 878     const SANE_Option_Descriptor *opt;
 879     WORD scroll;
 880     DWORD position;
 881
 882     index = GetDlgCtrlID((HWND)lParam)- ID_BASE;
 883     if (index < 0)
 884         return FALSE;
 885
 886     opt = psane_get_option_descriptor(activeDS.deviceHandle, index);
 887
 888     if (!opt)
 889         return FALSE;
 890
 891     scroll = LOWORD(wParam);
 892
 893     switch (scroll)
 894     {
 895         case SB_THUMBTRACK:
 896         case SB_THUMBPOSITION:
 897         {
 898             SCROLLINFO si;
 899             si.cbSize = sizeof(SCROLLINFO);
 900             si.fMask = SIF_TRACKPOS;
 901             GetScrollInfo((HWND)lParam,SB_CTL, &si);
 902             position = si.nTrackPos;
 903         }
 904             break;
 905         case SB_LEFT:
 906         case SB_LINELEFT:
 907         case SB_PAGELEFT:
 908             position = SendMessageW((HWND)lParam,SBM_GETPOS,0,0);
 909             position--;
 910             break;
 911         case SB_RIGHT:
 912         case SB_LINERIGHT:
 913         case SB_PAGERIGHT:
 914             position = SendMessageW((HWND)lParam,SBM_GETPOS,0,0);
 915             position++;
 916             break;
 917         default:
 918             position = SendMessageW((HWND)lParam,SBM_GETPOS,0,0);
 919     }
 920
 921     SendMessageW((HWND)lParam,SBM_SETPOS, position, TRUE);
 922     position = SendMessageW((HWND)lParam,SBM_GETPOS,0,0);
 923
 924     UpdateRelevantEdit(hwnd, opt, index, position);
 925     if (UpdateSaneScrollOption(opt, index, position))
 926         InitializeDialog(hwnd);
 927
 928     return TRUE;
 929 }
 930
 931
 932 static void ButtonClicked(HWND hwnd, INT id, HWND control)
 933 {
 934     int index;
 935     const SANE_Option_Descriptor *opt;
 936
 937     index = id - ID_BASE;
 938     if (index < 0)
 939         return;
 940
 941     opt = psane_get_option_descriptor(activeDS.deviceHandle, index);
 942
 943     if (!opt)
 944         return;
 945
 946     if (opt->type == SANE_TYPE_BOOL)
 947     {
 948         BOOL r = SendMessageW(control,BM_GETCHECK,0,0)==BST_CHECKED;
 949         if (UpdateSaneBoolOption(index, r))
 950                 InitializeDialog(hwnd);
 951     }
 952 }
 953
 954 static void ComboChanged(HWND hwnd, INT id, HWND control)
 955 {
 956     int index;
 957     int selection;
 958     int len;
 959     const SANE_Option_Descriptor *opt;
 960     SANE_String value;
 961
 962     index = id - ID_BASE;
 963     if (index < 0)
 964         return;
 965
 966     opt = psane_get_option_descriptor(activeDS.deviceHandle, index);
 967
 968     if (!opt)
 969         return;
 970
 971     selection = SendMessageW(control,CB_GETCURSEL,0,0);
 972     len = SendMessageW(control,CB_GETLBTEXTLEN,selection,0);
 973
 974     len++;
 975     value = HeapAlloc(GetProcessHeap(),0,len);
 976     SendMessageA(control,CB_GETLBTEXT,selection,(LPARAM)value);
 977
 978     if (opt->type == SANE_TYPE_STRING)
 979     {
 980         if (UpdateSaneStringOption(index, value))
 981                 InitializeDialog(hwnd);
 982     }
 983 }
 984
 985
 986 static INT_PTR CALLBACK DialogProc(HWND hwndDlg, UINT msg, WPARAM wParam, LPARAM lParam)
 987 {
 988     switch (msg)
 989     {
 990         case WM_INITDIALOG:
 991             return InitializeDialog(hwndDlg);
 992         case WM_HSCROLL:
 993             return ProcessScroll(hwndDlg, wParam, lParam);
 994         case WM_NOTIFY:
 995             {
 996                 LPPSHNOTIFY psn = (LPPSHNOTIFY)lParam;
 997                 switch (((NMHDR*)lParam)->code)
 998                 {
 999                     case PSN_APPLY:
1000                         if (psn->lParam == TRUE)
1001                         {
1002                             activeDS.currentState = 6;
1003                             if (activeDS.windowMessage)
1004                                 PostMessageA(activeDS.hwndOwner, activeDS.windowMessage, MSG_XFERREADY, 0);
1005                         }
1006                         break;
1007                     case PSN_QUERYCANCEL:
1008                         if (activeDS.windowMessage)
1009                             PostMessageA(activeDS.hwndOwner, activeDS.windowMessage, MSG_CLOSEDSREQ, 0);
1010                         break;
1011                     case PSN_SETACTIVE:
1012                         InitializeDialog(hwndDlg);
1013                         break;
1014                 }
1015             }
1016         case WM_COMMAND:
1017             {
1018                 switch (HIWORD(wParam))
1019                 {
1020                     case BN_CLICKED:
1021                         ButtonClicked(hwndDlg,LOWORD(wParam),
1022                                 (HWND)lParam);
1023                         break;
1024                     case CBN_SELCHANGE:
1025                         ComboChanged(hwndDlg,LOWORD(wParam),
1026                                 (HWND)lParam);
1027                 }
1028             }
1029     }
1030
1031     return FALSE;
1032 }
1033
1034 static int CALLBACK PropSheetProc(HWND hwnd, UINT msg, LPARAM lParam)
1035 {
1036     if (msg == PSCB_INITIALIZED)
1037     {
1038         /* rename OK button to Scan */
1039         HWND scan = GetDlgItem(hwnd,IDOK);
1040         SetWindowTextA(scan,"Scan");
1041     }
1042     return TRUE;
1043 }
1044
1045
1046 static INT_PTR CALLBACK ScanningProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
1047 {
1048     return FALSE;
1049 }
1050
1051 HWND ScanningDialogBox(HWND dialog, LONG progress)
1052 {
1053     if (!dialog)
1054         dialog = CreateDialogW(SANE_instance,
1055                 (LPWSTR)MAKEINTRESOURCE(IDD_DIALOG1), NULL, ScanningProc);
1056
1057     if (progress == -1)
1058     {
1059         EndDialog(dialog,0);
1060         return NULL;
1061     }
1062
1063     RedrawWindow(dialog,NULL,NULL,
1064             RDW_INTERNALPAINT|RDW_UPDATENOW|RDW_ALLCHILDREN);
1065
1066     return dialog;
1067 }
1068
1069 #else  /* SONAME_LIBSANE */
1070
1071 BOOL DoScannerUI(void)
1072 {
1073     return FALSE;
1074 }
1075
1076 #endif  /* SONAME_LIBSANE */