git.oblomov.eu Git - wine/blob - programs/winhelp/winhelp.c

   1 /*
   2  * Help Viewer
   3  *
   4  * Copyright    1996 Ulrich Schmid <uschmid@mail.hh.provi.de>
   5  *              2002 Sylvain Petreolle <spetreolle@yahoo.fr>
   6  *              2002 Eric Pouech <eric.pouech@wanadoo.fr>
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #include <assert.h>
  24 #include <stdio.h>
  25 #include <string.h>
  26 #include <stdarg.h>
  27 #include <stdlib.h>
  28
  29 #include "windef.h"
  30 #include "winbase.h"
  31 #include "wingdi.h"
  32 #include "winuser.h"
  33 #include "winhelp.h"
  34 #include "winhelp_res.h"
  35 #include "shellapi.h"
  36
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(winhelp);
  40
  41 static BOOL    WINHELP_RegisterWinClasses(void);
  42 static LRESULT CALLBACK WINHELP_MainWndProc(HWND, UINT, WPARAM, LPARAM);
  43 static LRESULT CALLBACK WINHELP_TextWndProc(HWND, UINT, WPARAM, LPARAM);
  44 static LRESULT CALLBACK WINHELP_ButtonBoxWndProc(HWND, UINT, WPARAM, LPARAM);
  45 static LRESULT CALLBACK WINHELP_HistoryWndProc(HWND, UINT, WPARAM, LPARAM);
  46 static void    WINHELP_CheckPopup(UINT);
  47 static BOOL    WINHELP_SplitLines(HWND hWnd, LPSIZE);
  48 static void    WINHELP_InitFonts(HWND hWnd);
  49 static void    WINHELP_DeleteLines(WINHELP_WINDOW*);
  50 static void    WINHELP_DeleteWindow(WINHELP_WINDOW*);
  51 static void    WINHELP_SetupText(HWND hWnd);
  52 static WINHELP_LINE_PART* WINHELP_IsOverLink(WINHELP_WINDOW*, WPARAM, LPARAM);
  53
  54 WINHELP_GLOBALS Globals = {3, 0, 0, 0, 1, 0, 0};
  55
  56 /***********************************************************************
  57  *
  58  *           WINHELP_LookupHelpFile
  59  */
  60 HLPFILE* WINHELP_LookupHelpFile(LPCSTR lpszFile)
  61 {
  62     HLPFILE*        hlpfile;
  63
  64     hlpfile = HLPFILE_ReadHlpFile(lpszFile);
  65
  66     /* Add Suffix `.hlp' */
  67     if (!hlpfile && lstrcmpi(lpszFile + strlen(lpszFile) - 4, ".hlp") != 0)
  68     {
  69         char      szFile_hlp[MAX_PATHNAME_LEN];
  70
  71         lstrcpyn(szFile_hlp, lpszFile, sizeof(szFile_hlp) - 4);
  72         szFile_hlp[sizeof(szFile_hlp) - 5] = '\0';
  73         lstrcat(szFile_hlp, ".hlp");
  74
  75         hlpfile = HLPFILE_ReadHlpFile(szFile_hlp);
  76     }
  77     if (!hlpfile)
  78     {
  79         WINHELP_MessageBoxIDS_s(STID_HLPFILE_ERROR_s, lpszFile, STID_WHERROR, MB_OK);
  80         if (Globals.win_list) return NULL;
  81     }
  82     return hlpfile;
  83 }
  84
  85 /******************************************************************
  86  *              WINHELP_GetWindowInfo
  87  *
  88  *
  89  */
  90 HLPFILE_WINDOWINFO*     WINHELP_GetWindowInfo(HLPFILE* hlpfile, LPCSTR name)
  91 {
  92     static      HLPFILE_WINDOWINFO      mwi;
  93     int         i;
  94
  95     if (!name || !name[0])
  96         name = Globals.active_win->lpszName;
  97
  98     if (hlpfile)
  99         for (i = 0; i < hlpfile->numWindows; i++)
 100             if (!strcmp(hlpfile->windows[i].name, name))
 101                 return &hlpfile->windows[i];
 102
 103     if (strcmp(name, "main") != 0)
 104     {
 105         WINE_FIXME("Couldn't find window info for %s\n", name);
 106         assert(0);
 107         return NULL;
 108     }
 109     if (!mwi.name[0])
 110     {
 111         strcpy(mwi.type, "primary");
 112         strcpy(mwi.name, "main");
 113         if (!LoadString(Globals.hInstance, STID_WINE_HELP,
 114                         mwi.caption, sizeof(mwi.caption)))
 115             strcpy(mwi.caption, hlpfile->lpszTitle);
 116         mwi.origin.x = mwi.origin.y = mwi.size.cx = mwi.size.cy = CW_USEDEFAULT;
 117         mwi.style = SW_SHOW;
 118         mwi.sr_color = mwi.sr_color = 0xFFFFFF;
 119     }
 120     return &mwi;
 121 }
 122
 123 /******************************************************************
 124  *              HLPFILE_GetPopupWindowInfo
 125  *
 126  *
 127  */
 128 HLPFILE_WINDOWINFO*     WINHELP_GetPopupWindowInfo(HLPFILE* hlpfile, HWND hParentWnd, POINT* mouse)
 129 {
 130     static      HLPFILE_WINDOWINFO      wi;
 131
 132     RECT parent_rect;
 133
 134     wi.type[0] = wi.name[0] = wi.caption[0] = '\0';
 135
 136     /* Calculate horizontal size and position of a popup window */
 137     GetWindowRect(hParentWnd, &parent_rect);
 138     wi.size.cx = (parent_rect.right  - parent_rect.left) / 2;
 139     wi.size.cy = 10; /* need a non null value, so that border are taken into account while computing */
 140
 141     wi.origin = *mouse;
 142     ClientToScreen(hParentWnd, &wi.origin);
 143     wi.origin.x -= wi.size.cx / 2;
 144     wi.origin.x  = min(wi.origin.x, GetSystemMetrics(SM_CXSCREEN) - wi.size.cx);
 145     wi.origin.x  = max(wi.origin.x, 0);
 146
 147     wi.style = SW_SHOW;
 148     wi.win_style = WS_POPUPWINDOW;
 149     wi.sr_color = wi.sr_color = 0xFFFFFF;
 150
 151     return &wi;
 152 }
 153
 154 /***********************************************************************
 155  *
 156  *           WinMain
 157  */
 158 int PASCAL WinMain(HINSTANCE hInstance, HINSTANCE prev, LPSTR cmdline, int show)
 159 {
 160     MSG         msg;
 161     LONG        lHash = 0;
 162     HLPFILE*    hlpfile;
 163
 164     Globals.hInstance = hInstance;
 165
 166     /* Get options */
 167     while (*cmdline && (*cmdline == ' ' || *cmdline == '-'))
 168     {
 169         CHAR   option;
 170         LPCSTR topic_id;
 171         if (*cmdline++ == ' ') continue;
 172
 173         option = *cmdline;
 174         if (option) cmdline++;
 175         while (*cmdline && *cmdline == ' ') cmdline++;
 176         switch (option)
 177         {
 178         case 'i':
 179         case 'I':
 180             topic_id = cmdline;
 181             while (*cmdline && *cmdline != ' ') cmdline++;
 182             if (*cmdline) *cmdline++ = '\0';
 183             lHash = HLPFILE_Hash(topic_id);
 184             break;
 185
 186         case '3':
 187         case '4':
 188             Globals.wVersion = option - '0';
 189             break;
 190
 191         case 'x':
 192             show = SW_HIDE;
 193             Globals.isBook = FALSE;
 194             break;
 195
 196         default:
 197             WINE_FIXME("Unsupported cmd line: %s\n", cmdline);
 198             break;
 199         }
 200     }
 201
 202     /* Create primary window */
 203     WINHELP_RegisterWinClasses();
 204     if (*cmdline)
 205     {
 206         hlpfile = WINHELP_LookupHelpFile(cmdline);
 207         if (!hlpfile) return 0;
 208     }
 209     else hlpfile = NULL;
 210     WINHELP_CreateHelpWindowByHash(hlpfile, lHash,
 211                                    WINHELP_GetWindowInfo(hlpfile, "main"), show);
 212
 213     /* Message loop */
 214     while (GetMessage(&msg, 0, 0, 0))
 215     {
 216         TranslateMessage(&msg);
 217         DispatchMessage(&msg);
 218     }
 219     return 0;
 220 }
 221
 222 /***********************************************************************
 223  *
 224  *           RegisterWinClasses
 225  */
 226 static BOOL WINHELP_RegisterWinClasses(void)
 227 {
 228     WNDCLASS class_main, class_button_box, class_text, class_shadow, class_history;
 229
 230     class_main.style               = CS_HREDRAW | CS_VREDRAW;
 231     class_main.lpfnWndProc         = WINHELP_MainWndProc;
 232     class_main.cbClsExtra          = 0;
 233     class_main.cbWndExtra          = sizeof(LONG);
 234     class_main.hInstance           = Globals.hInstance;
 235     class_main.hIcon               = LoadIcon(0, IDI_APPLICATION);
 236     class_main.hCursor             = LoadCursor(0, IDC_ARROW);
 237     class_main.hbrBackground       = GetStockObject(WHITE_BRUSH);
 238     class_main.lpszMenuName        = 0;
 239     class_main.lpszClassName       = MAIN_WIN_CLASS_NAME;
 240
 241     class_button_box               = class_main;
 242     class_button_box.lpfnWndProc   = WINHELP_ButtonBoxWndProc;
 243     class_button_box.hbrBackground = GetStockObject(GRAY_BRUSH);
 244     class_button_box.lpszClassName = BUTTON_BOX_WIN_CLASS_NAME;
 245
 246     class_text = class_main;
 247     class_text.lpfnWndProc         = WINHELP_TextWndProc;
 248     class_text.lpszClassName       = TEXT_WIN_CLASS_NAME;
 249
 250     class_shadow = class_main;
 251     class_shadow.lpfnWndProc       = DefWindowProc;
 252     class_shadow.hbrBackground     = GetStockObject(GRAY_BRUSH);
 253     class_shadow.lpszClassName     = SHADOW_WIN_CLASS_NAME;
 254
 255     class_history = class_main;
 256     class_history.lpfnWndProc      = WINHELP_HistoryWndProc;
 257     class_history.lpszClassName    = HISTORY_WIN_CLASS_NAME;
 258
 259     return (RegisterClass(&class_main) &&
 260             RegisterClass(&class_button_box) &&
 261             RegisterClass(&class_text) &&
 262             RegisterClass(&class_shadow) &&
 263             RegisterClass(&class_history));
 264 }
 265
 266 typedef struct
 267 {
 268     WORD size;
 269     WORD command;
 270     LONG data;
 271     LONG reserved;
 272     WORD ofsFilename;
 273     WORD ofsData;
 274 } WINHELP,*LPWINHELP;
 275
 276 /******************************************************************
 277  *              WINHELP_HandleCommand
 278  *
 279  *
 280  */
 281 static LRESULT  WINHELP_HandleCommand(HWND hSrcWnd, LPARAM lParam)
 282 {
 283     COPYDATASTRUCT*     cds = (COPYDATASTRUCT*)lParam;
 284     WINHELP*            wh;
 285
 286     if (cds->dwData != 0xA1DE505)
 287     {
 288         WINE_FIXME("Wrong magic number (%08lx)\n", cds->dwData);
 289         return 0;
 290     }
 291
 292     wh = (WINHELP*)cds->lpData;
 293
 294     if (wh)
 295     {
 296         char*   ptr = (wh->ofsFilename) ? (LPSTR)wh + wh->ofsFilename : NULL;
 297
 298         WINE_TRACE("Got[%u]: cmd=%u data=%08lx fn=%s\n",
 299                    wh->size, wh->command, wh->data, ptr);
 300         switch (wh->command)
 301         {
 302         case HELP_CONTEXT:
 303             if (ptr)
 304             {
 305                 MACRO_JumpContext(ptr, "main", wh->data);
 306             }
 307             break;
 308         case HELP_QUIT:
 309             MACRO_Exit();
 310             break;
 311         case HELP_CONTENTS:
 312             if (ptr)
 313             {
 314                 MACRO_JumpContents(ptr, "main");
 315             }
 316             break;
 317         case HELP_HELPONHELP:
 318             MACRO_HelpOn();
 319             break;
 320         /* case HELP_SETINDEX: */
 321         case HELP_SETCONTENTS:
 322             if (ptr)
 323             {
 324                 MACRO_SetContents(ptr, wh->data);
 325             }
 326             break;
 327         case HELP_CONTEXTPOPUP:
 328             if (ptr)
 329             {
 330                 MACRO_PopupContext(ptr, wh->data);
 331             }
 332             break;
 333         /* case HELP_FORCEFILE:*/
 334         /* case HELP_CONTEXTMENU: */
 335         case HELP_FINDER:
 336             /* in fact, should be the topic dialog box */
 337             if (ptr)
 338             {
 339                 MACRO_JumpHash(ptr, "main", 0);
 340             }
 341             break;
 342         /* case HELP_WM_HELP: */
 343         /* case HELP_SETPOPUP_POS: */
 344         /* case HELP_KEY: */
 345         /* case HELP_COMMAND: */
 346         /* case HELP_PARTIALKEY: */
 347         /* case HELP_MULTIKEY: */
 348         /* case HELP_SETWINPOS: */
 349             WINE_FIXME("Unknown command (%x) for remote winhelp control\n", wh->command);
 350             break;
 351         }
 352     }
 353     return 0L;
 354 }
 355
 356 /******************************************************************
 357  *              WINHELP_ReuseWindow
 358  *
 359  *
 360  */
 361 static BOOL     WINHELP_ReuseWindow(WINHELP_WINDOW* win, WINHELP_WINDOW* oldwin,
 362                                     HLPFILE_PAGE* page, int nCmdShow)
 363 {
 364     int                 i;
 365
 366     win->hMainWnd      = oldwin->hMainWnd;
 367     win->hButtonBoxWnd = oldwin->hButtonBoxWnd;
 368     win->hTextWnd      = oldwin->hTextWnd;
 369     win->hHistoryWnd   = oldwin->hHistoryWnd;
 370     oldwin->hMainWnd = oldwin->hButtonBoxWnd = oldwin->hTextWnd = oldwin->hHistoryWnd = 0;
 371
 372     SetWindowLong(win->hMainWnd,      0, (LONG)win);
 373     SetWindowLong(win->hButtonBoxWnd, 0, (LONG)win);
 374     SetWindowLong(win->hTextWnd,      0, (LONG)win);
 375     SetWindowLong(win->hHistoryWnd,   0, (LONG)win);
 376
 377     WINHELP_InitFonts(win->hMainWnd);
 378
 379     if (page)
 380         SetWindowText(win->hMainWnd, page->file->lpszTitle);
 381
 382     WINHELP_SetupText(win->hTextWnd);
 383     InvalidateRect(win->hTextWnd, NULL, TRUE);
 384     SendMessage(win->hMainWnd, WM_USER, 0, 0);
 385     ShowWindow(win->hMainWnd, nCmdShow);
 386     UpdateWindow(win->hTextWnd);
 387
 388     if (!(win->info->win_style & WS_POPUP))
 389     {
 390         unsigned        num;
 391
 392         memcpy(win->history, oldwin->history, sizeof(win->history));
 393         win->histIndex = oldwin->histIndex;
 394
 395         /* FIXME: when using back, we shouldn't update the history... */
 396
 397         if (page)
 398         {
 399             for (i = 0; i < win->histIndex; i++)
 400                 if (win->history[i] == page) break;
 401
 402             /* if the new page is already in the history, do nothing */
 403             if (i == win->histIndex)
 404             {
 405                 num = sizeof(win->history) / sizeof(win->history[0]);
 406                 if (win->histIndex == num)
 407                 {
 408                     /* we're full, remove latest entry */
 409                     HLPFILE_FreeHlpFile(win->history[0]->file);
 410                     memmove(&win->history[0], &win->history[1],
 411                             (num - 1) * sizeof(win->history[0]));
 412                     win->histIndex--;
 413                 }
 414                 win->history[win->histIndex++] = page;
 415                 page->file->wRefCount++;
 416                 if (win->hHistoryWnd) InvalidateRect(win->hHistoryWnd, NULL, TRUE);
 417             }
 418         }
 419
 420         memcpy(win->back, oldwin->back, sizeof(win->back));
 421         win->backIndex = oldwin->backIndex;
 422
 423         if (page)
 424         {
 425             num = sizeof(win->back) / sizeof(win->back[0]);
 426             if (win->backIndex == num)
 427             {
 428                 /* we're full, remove latest entry */
 429                 HLPFILE_FreeHlpFile(win->back[0]->file);
 430                 memmove(&win->back[0], &win->back[1],
 431                         (num - 1) * sizeof(win->back[0]));
 432                 win->backIndex--;
 433             }
 434             win->back[win->backIndex++] = page;
 435             page->file->wRefCount++;
 436         }
 437     }
 438     else
 439         win->backIndex = win->histIndex = 0;
 440
 441     oldwin->histIndex = oldwin->backIndex = 0;
 442     WINHELP_DeleteWindow(oldwin);
 443     return TRUE;
 444 }
 445
 446 /***********************************************************************
 447  *
 448  *           WINHELP_CreateHelpWindow
 449  */
 450 BOOL WINHELP_CreateHelpWindow(HLPFILE_PAGE* page, HLPFILE_WINDOWINFO* wi,
 451                               int nCmdShow)
 452 {
 453     WINHELP_WINDOW *win, *oldwin;
 454     HWND hWnd;
 455     BOOL bPrimary;
 456     BOOL bPopup;
 457
 458     bPrimary = !lstrcmpi(wi->name, "main");
 459     bPopup = wi->win_style & WS_POPUP;
 460
 461     /* Initialize WINHELP_WINDOW struct */
 462     win = HeapAlloc(GetProcessHeap(), 0,
 463                     sizeof(WINHELP_WINDOW) + strlen(wi->name) + 1);
 464     if (!win) return FALSE;
 465
 466     win->next  = Globals.win_list;
 467     Globals.win_list = win;
 468
 469     win->lpszName = (char*)win + sizeof(WINHELP_WINDOW);
 470     lstrcpy((char*)win->lpszName, wi->name);
 471
 472     win->page = page;
 473     win->first_button = 0;
 474     win->first_line = 0;
 475     win->hMainWnd = 0;
 476     win->hButtonBoxWnd = 0;
 477     win->hTextWnd = 0;
 478     win->hShadowWnd = 0;
 479     win->hHistoryWnd = 0;
 480
 481     win->hArrowCur = LoadCursorA(0, (LPSTR)IDC_ARROW);
 482     win->hHandCur = LoadCursorA(0, (LPSTR)IDC_HAND);
 483
 484     win->info = wi;
 485
 486     Globals.active_win = win;
 487
 488     /* Initialize default pushbuttons */
 489     if (bPrimary && page)
 490     {
 491         CHAR    buffer[MAX_STRING_LEN];
 492
 493         LoadString(Globals.hInstance, STID_CONTENTS, buffer, sizeof(buffer));
 494         MACRO_CreateButton("BTN_CONTENTS", buffer, "Contents()");
 495         LoadString(Globals.hInstance, STID_SEARCH,buffer, sizeof(buffer));
 496         MACRO_CreateButton("BTN_SEARCH", buffer, "Search()");
 497         LoadString(Globals.hInstance, STID_BACK, buffer, sizeof(buffer));
 498         MACRO_CreateButton("BTN_BACK", buffer, "Back()");
 499         LoadString(Globals.hInstance, STID_HISTORY, buffer, sizeof(buffer));
 500         MACRO_CreateButton("BTN_HISTORY", buffer, "History()");
 501         LoadString(Globals.hInstance, STID_TOPICS, buffer, sizeof(buffer));
 502         MACRO_CreateButton("BTN_TOPICS", buffer, "Finder()");
 503     }
 504
 505     /* Initialize file specific pushbuttons */
 506     if (!(wi->win_style & WS_POPUP) && page)
 507     {
 508         HLPFILE_MACRO  *macro;
 509         for (macro = page->file->first_macro; macro; macro = macro->next)
 510             MACRO_ExecuteMacro(macro->lpszMacro);
 511
 512         for (macro = page->first_macro; macro; macro = macro->next)
 513             MACRO_ExecuteMacro(macro->lpszMacro);
 514     }
 515
 516     win->histIndex = win->backIndex = 0;
 517     /* Reuse existing window */
 518     if (!bPopup)
 519     {
 520         for (oldwin = win->next; oldwin; oldwin = oldwin->next)
 521         {
 522             if (!lstrcmpi(oldwin->lpszName, wi->name))
 523             {
 524                 return WINHELP_ReuseWindow(win, oldwin, page, nCmdShow);
 525             }
 526         }
 527         if (page)
 528         {
 529             win->histIndex = win->backIndex = 1;
 530             win->history[0] = win->back[0] = page;
 531             page->file->wRefCount += 2;
 532         }
 533     }
 534
 535     hWnd = CreateWindow(bPopup ? TEXT_WIN_CLASS_NAME : MAIN_WIN_CLASS_NAME,
 536                         wi->caption, wi->win_style,
 537                         wi->origin.x, wi->origin.y, wi->size.cx, wi->size.cy,
 538                         0, bPrimary ? LoadMenu(Globals.hInstance, MAKEINTRESOURCE(MAIN_MENU)) : 0,
 539                         Globals.hInstance, win);
 540
 541     ShowWindow(hWnd, nCmdShow);
 542     UpdateWindow(hWnd);
 543
 544     return TRUE;
 545 }
 546
 547 /***********************************************************************
 548  *
 549  *           WINHELP_CreateHelpWindowByHash
 550  */
 551 BOOL WINHELP_CreateHelpWindowByHash(HLPFILE* hlpfile, LONG lHash,
 552                                     HLPFILE_WINDOWINFO* wi, int nCmdShow)
 553 {
 554     HLPFILE_PAGE*       page = NULL;
 555
 556     if (hlpfile)
 557         page = lHash ? HLPFILE_PageByHash(hlpfile, lHash) :
 558             HLPFILE_Contents(hlpfile);
 559     if (page) page->file->wRefCount++;
 560     return WINHELP_CreateHelpWindow(page, wi, nCmdShow);
 561 }
 562
 563 /***********************************************************************
 564  *
 565  *           WINHELP_MainWndProc
 566  */
 567 static LRESULT CALLBACK WINHELP_MainWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 568 {
 569     WINHELP_WINDOW *win;
 570     WINHELP_BUTTON *button;
 571     RECT rect, button_box_rect;
 572     INT  text_top;
 573
 574     WINHELP_CheckPopup(msg);
 575
 576     switch (msg)
 577     {
 578     case WM_NCCREATE:
 579         win = (WINHELP_WINDOW*) ((LPCREATESTRUCT) lParam)->lpCreateParams;
 580         SetWindowLong(hWnd, 0, (LONG) win);
 581         win->hMainWnd = hWnd;
 582         break;
 583
 584     case WM_CREATE:
 585         win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
 586
 587         /* Create button box and text Window */
 588         CreateWindow(BUTTON_BOX_WIN_CLASS_NAME, "", WS_CHILD | WS_VISIBLE,
 589                      0, 0, 0, 0, hWnd, 0, Globals.hInstance, win);
 590
 591         CreateWindow(TEXT_WIN_CLASS_NAME, "", WS_CHILD | WS_VISIBLE,
 592                      0, 0, 0, 0, hWnd, 0, Globals.hInstance, win);
 593
 594         /* Fall through */
 595     case WM_USER:
 596     case WM_WINDOWPOSCHANGED:
 597         win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
 598         GetClientRect(hWnd, &rect);
 599
 600         /* Update button box and text Window */
 601         SetWindowPos(win->hButtonBoxWnd, HWND_TOP,
 602                      rect.left, rect.top,
 603                      rect.right - rect.left,
 604                      rect.bottom - rect.top, 0);
 605
 606         GetWindowRect(win->hButtonBoxWnd, &button_box_rect);
 607         text_top = rect.top + button_box_rect.bottom - button_box_rect.top;
 608
 609         SetWindowPos(win->hTextWnd, HWND_TOP,
 610                      rect.left, text_top,
 611                      rect.right - rect.left,
 612                      rect.bottom - text_top, 0);
 613
 614         break;
 615
 616     case WM_COMMAND:
 617         Globals.active_win = win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
 618         switch (wParam)
 619         {
 620             /* Menu FILE */
 621         case MNID_FILE_OPEN:    MACRO_FileOpen();       break;
 622         case MNID_FILE_PRINT:   MACRO_Print();          break;
 623         case MNID_FILE_SETUP:   MACRO_PrinterSetup();   break;
 624         case MNID_FILE_EXIT:    MACRO_Exit();           break;
 625
 626             /* Menu EDIT */
 627         case MNID_EDIT_COPYDLG: MACRO_CopyDialog();     break;
 628         case MNID_EDIT_ANNOTATE:MACRO_Annotate();       break;
 629
 630             /* Menu Bookmark */
 631         case MNID_BKMK_DEFINE:  MACRO_BookmarkDefine(); break;
 632
 633             /* Menu Help */
 634         case MNID_HELP_HELPON:  MACRO_HelpOn();         break;
 635         case MNID_HELP_HELPTOP: MACRO_HelpOnTop();      break;
 636         case MNID_HELP_ABOUT:   MACRO_About();          break;
 637         case MNID_HELP_WINE:    ShellAbout(hWnd, "WINE", "Help", 0); break;
 638
 639         default:
 640             /* Buttons */
 641             for (button = win->first_button; button; button = button->next)
 642                 if (wParam == button->wParam) break;
 643             if (button)
 644                 MACRO_ExecuteMacro(button->lpszMacro);
 645             else
 646                 WINHELP_MessageBoxIDS(STID_NOT_IMPLEMENTED, 0x121, MB_OK);
 647             break;
 648         }
 649         break;
 650     case WM_DESTROY:
 651         if (Globals.hPopupWnd) DestroyWindow(Globals.hPopupWnd);
 652         break;
 653     case WM_COPYDATA:
 654         return WINHELP_HandleCommand((HWND)wParam, lParam);
 655     }
 656     return DefWindowProc(hWnd, msg, wParam, lParam);
 657 }
 658
 659 /***********************************************************************
 660  *
 661  *           WINHELP_ButtonBoxWndProc
 662  */
 663 static LRESULT CALLBACK WINHELP_ButtonBoxWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 664 {
 665     WINDOWPOS      *winpos;
 666     WINHELP_WINDOW *win;
 667     WINHELP_BUTTON *button;
 668     SIZE button_size;
 669     INT  x, y;
 670
 671     WINHELP_CheckPopup(msg);
 672
 673     switch (msg)
 674     {
 675     case WM_NCCREATE:
 676         win = (WINHELP_WINDOW*) ((LPCREATESTRUCT) lParam)->lpCreateParams;
 677         SetWindowLong(hWnd, 0, (LONG) win);
 678         win->hButtonBoxWnd = hWnd;
 679         break;
 680
 681     case WM_WINDOWPOSCHANGING:
 682         winpos = (WINDOWPOS*) lParam;
 683         win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
 684
 685         /* Update buttons */
 686         button_size.cx = 0;
 687         button_size.cy = 0;
 688         for (button = win->first_button; button; button = button->next)
 689         {
 690             HDC  hDc;
 691             SIZE textsize;
 692             if (!button->hWnd)
 693                 button->hWnd = CreateWindow(STRING_BUTTON, (LPSTR) button->lpszName,
 694                                             WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,
 695                                             0, 0, 0, 0,
 696                                             hWnd, (HMENU) button->wParam,
 697                                             Globals.hInstance, 0);
 698             hDc = GetDC(button->hWnd);
 699             GetTextExtentPoint(hDc, button->lpszName,
 700                                lstrlen(button->lpszName), &textsize);
 701             ReleaseDC(button->hWnd, hDc);
 702
 703             button_size.cx = max(button_size.cx, textsize.cx + BUTTON_CX);
 704             button_size.cy = max(button_size.cy, textsize.cy + BUTTON_CY);
 705         }
 706
 707         x = 0;
 708         y = 0;
 709         for (button = win->first_button; button; button = button->next)
 710         {
 711             SetWindowPos(button->hWnd, HWND_TOP, x, y, button_size.cx, button_size.cy, 0);
 712
 713             if (x + 2 * button_size.cx <= winpos->cx)
 714                 x += button_size.cx;
 715             else
 716                 x = 0, y += button_size.cy;
 717         }
 718         winpos->cy = y + (x ? button_size.cy : 0);
 719         break;
 720
 721     case WM_COMMAND:
 722         SendMessage(GetParent(hWnd), msg, wParam, lParam);
 723         break;
 724     }
 725
 726     return DefWindowProc(hWnd, msg, wParam, lParam);
 727 }
 728
 729 /***********************************************************************
 730  *
 731  *           WINHELP_TextWndProc
 732  */
 733 static LRESULT CALLBACK WINHELP_TextWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 734 {
 735     WINHELP_WINDOW    *win;
 736     WINHELP_LINE      *line;
 737     WINHELP_LINE_PART *part;
 738     WINDOWPOS         *winpos;
 739     PAINTSTRUCT        ps;
 740     HDC   hDc;
 741     POINT mouse;
 742     INT   scroll_pos;
 743     HWND  hPopupWnd;
 744     BOOL  bExit;
 745
 746     if (msg != WM_LBUTTONDOWN)
 747         WINHELP_CheckPopup(msg);
 748
 749     switch (msg)
 750     {
 751     case WM_NCCREATE:
 752         win = (WINHELP_WINDOW*) ((LPCREATESTRUCT) lParam)->lpCreateParams;
 753         SetWindowLong(hWnd, 0, (LONG) win);
 754         win->hTextWnd = hWnd;
 755         if (win->info->win_style & WS_POPUP) Globals.hPopupWnd = win->hMainWnd = hWnd;
 756         WINHELP_InitFonts(hWnd);
 757         break;
 758
 759     case WM_CREATE:
 760         win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
 761
 762         /* Calculate vertical size and position of a popup window */
 763         if (win->info->win_style & WS_POPUP)
 764         {
 765             POINT origin;
 766             RECT old_window_rect;
 767             RECT old_client_rect;
 768             SIZE old_window_size;
 769             SIZE old_client_size;
 770             SIZE new_client_size;
 771             SIZE new_window_size;
 772
 773             GetWindowRect(hWnd, &old_window_rect);
 774             origin.x = old_window_rect.left;
 775             origin.y = old_window_rect.top;
 776             old_window_size.cx = old_window_rect.right  - old_window_rect.left;
 777             old_window_size.cy = old_window_rect.bottom - old_window_rect.top;
 778
 779             GetClientRect(hWnd, &old_client_rect);
 780             old_client_size.cx = old_client_rect.right  - old_client_rect.left;
 781             old_client_size.cy = old_client_rect.bottom - old_client_rect.top;
 782
 783             new_client_size = old_client_size;
 784             WINHELP_SplitLines(hWnd, &new_client_size);
 785
 786             if (origin.y + POPUP_YDISTANCE + new_client_size.cy <= GetSystemMetrics(SM_CYSCREEN))
 787                 origin.y += POPUP_YDISTANCE;
 788             else
 789                 origin.y -= POPUP_YDISTANCE + new_client_size.cy;
 790
 791             new_window_size.cx = old_window_size.cx - old_client_size.cx + new_client_size.cx;
 792             new_window_size.cy = old_window_size.cy - old_client_size.cy + new_client_size.cy;
 793
 794             win->hShadowWnd =
 795                 CreateWindow(SHADOW_WIN_CLASS_NAME, "", WS_POPUP,
 796                              origin.x + SHADOW_DX, origin.y + SHADOW_DY,
 797                              new_window_size.cx, new_window_size.cy,
 798                              0, 0, Globals.hInstance, 0);
 799
 800             SetWindowPos(hWnd, HWND_TOP, origin.x, origin.y,
 801                          new_window_size.cx, new_window_size.cy,
 802                          0);
 803             SetWindowPos(win->hShadowWnd, hWnd, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
 804             ShowWindow(win->hShadowWnd, SW_NORMAL);
 805             SetActiveWindow(hWnd);
 806         }
 807         break;
 808
 809     case WM_WINDOWPOSCHANGED:
 810         winpos = (WINDOWPOS*) lParam;
 811
 812         if (!(winpos->flags & SWP_NOSIZE)) WINHELP_SetupText(hWnd);
 813         break;
 814
 815     case WM_MOUSEWHEEL:
 816     {
 817        int wheelDelta = 0;
 818        UINT scrollLines = 3;
 819        int curPos = GetScrollPos(hWnd, SB_VERT);
 820        int min, max;
 821
 822        GetScrollRange(hWnd, SB_VERT, &min, &max);
 823
 824        SystemParametersInfo(SPI_GETWHEELSCROLLLINES,0, &scrollLines, 0);
 825        if (wParam & (MK_SHIFT | MK_CONTROL))
 826            return DefWindowProc(hWnd, msg, wParam, lParam);
 827        wheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
 828        if (abs(wheelDelta) >= WHEEL_DELTA && scrollLines) {
 829            int dy;
 830
 831            curPos += wheelDelta;
 832            if (curPos > max)
 833                 curPos = max;
 834            else if (curPos < min)
 835                 curPos = min;
 836
 837            dy = GetScrollPos(hWnd, SB_VERT) - curPos;
 838            SetScrollPos(hWnd, SB_VERT, curPos, TRUE);
 839            ScrollWindow(hWnd, 0, dy, NULL, NULL);
 840            UpdateWindow(hWnd);
 841        }
 842     }
 843     break;
 844
 845     case WM_VSCROLL:
 846     {
 847         BOOL  update = TRUE;
 848         RECT  rect;
 849         INT   Min, Max;
 850         INT   CurPos = GetScrollPos(hWnd, SB_VERT);
 851         INT   dy;
 852
 853         GetScrollRange(hWnd, SB_VERT, &Min, &Max);
 854         GetClientRect(hWnd, &rect);
 855
 856         switch (wParam & 0xffff)
 857         {
 858         case SB_THUMBTRACK:
 859         case SB_THUMBPOSITION: CurPos  = wParam >> 16;                   break;
 860         case SB_TOP:           CurPos  = Min;                            break;
 861         case SB_BOTTOM:        CurPos  = Max;                            break;
 862         case SB_PAGEUP:        CurPos -= (rect.bottom - rect.top) / 2;   break;
 863         case SB_PAGEDOWN:      CurPos += (rect.bottom - rect.top) / 2;   break;
 864         case SB_LINEUP:        CurPos -= GetSystemMetrics(SM_CXVSCROLL); break;
 865         case SB_LINEDOWN:      CurPos += GetSystemMetrics(SM_CXVSCROLL); break;
 866         default: update = FALSE;
 867         }
 868         if (update)
 869         {
 870             if (CurPos > Max)
 871                 CurPos = Max;
 872             else if (CurPos < Min)
 873                 CurPos = Min;
 874             dy = GetScrollPos(hWnd, SB_VERT) - CurPos;
 875             SetScrollPos(hWnd, SB_VERT, CurPos, TRUE);
 876             ScrollWindow(hWnd, 0, dy, NULL, NULL);
 877             UpdateWindow(hWnd);
 878         }
 879     }
 880     break;
 881
 882     case WM_PAINT:
 883         hDc = BeginPaint(hWnd, &ps);
 884         win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
 885         scroll_pos = GetScrollPos(hWnd, SB_VERT);
 886
 887         for (line = win->first_line; line; line = line->next)
 888         {
 889             for (part = &line->first_part; part; part = part->next)
 890             {
 891                 switch (part->cookie)
 892                 {
 893                 case hlp_line_part_text:
 894                     SelectObject(hDc, part->u.text.hFont);
 895                     SetTextColor(hDc, part->u.text.color);
 896                     TextOut(hDc, part->rect.left, part->rect.top - scroll_pos,
 897                             part->u.text.lpsText, part->u.text.wTextLen);
 898                     if (part->u.text.wUnderline)
 899                     {
 900                         HPEN    hPen;
 901
 902                         switch (part->u.text.wUnderline)
 903                         {
 904                         case 1: /* simple */
 905                         case 2: /* double */
 906                             hPen = CreatePen(PS_SOLID, 1, part->u.text.color);
 907                             break;
 908                         case 3: /* dotted */
 909                             hPen = CreatePen(PS_DOT, 1, part->u.text.color);
 910                             break;
 911                         default:
 912                             WINE_FIXME("Unknow underline type\n");
 913                             continue;
 914                         }
 915
 916                         SelectObject(hDc, hPen);
 917                         MoveToEx(hDc, part->rect.left, part->rect.bottom - scroll_pos - 1, NULL);
 918                         LineTo(hDc, part->rect.right, part->rect.bottom - scroll_pos - 1);
 919                         if (part->u.text.wUnderline == 2)
 920                         {
 921                             MoveToEx(hDc, part->rect.left, part->rect.bottom - scroll_pos + 1, NULL);
 922                             LineTo(hDc, part->rect.right, part->rect.bottom - scroll_pos + 1);
 923                         }
 924                         DeleteObject(hPen);
 925                     }
 926                     break;
 927                 case hlp_line_part_bitmap:
 928                     {
 929                         HDC hMemDC;
 930
 931                         hMemDC = CreateCompatibleDC(hDc);
 932                         SelectObject(hMemDC, part->u.bitmap.hBitmap);
 933                         BitBlt(hDc, part->rect.left, part->rect.top - scroll_pos,
 934                                part->rect.right - part->rect.left, part->rect.bottom - part->rect.top,
 935                                hMemDC, 0, 0, SRCCOPY);
 936                         DeleteDC(hMemDC);
 937                     }
 938                     break;
 939                 case hlp_line_part_metafile:
 940                     {
 941                         POINT   pt;
 942
 943                         SetViewportOrgEx(hDc, part->rect.left, part->rect.top - scroll_pos, &pt);
 944                         PlayMetaFile(hDc, part->u.metafile.hMetaFile);
 945                         SetViewportOrgEx(hDc, pt.x, pt.y, NULL);
 946                     }
 947                     break;
 948                 }
 949             }
 950         }
 951
 952         EndPaint(hWnd, &ps);
 953         break;
 954
 955     case WM_MOUSEMOVE:
 956         win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
 957
 958         if (WINHELP_IsOverLink(win, wParam, lParam))
 959             SetCursor(win->hHandCur); /* set to hand pointer cursor to indicate a link */
 960         else
 961             SetCursor(win->hArrowCur); /* set to hand pointer cursor to indicate a link */
 962
 963         break;
 964
 965     case WM_LBUTTONDOWN:
 966         win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
 967
 968         hPopupWnd = Globals.hPopupWnd;
 969         Globals.hPopupWnd = 0;
 970
 971         part = WINHELP_IsOverLink(win, wParam, lParam);
 972         if (part)
 973         {
 974             HLPFILE*            hlpfile;
 975             HLPFILE_WINDOWINFO* wi;
 976
 977             mouse.x = LOWORD(lParam);
 978             mouse.y = HIWORD(lParam);
 979
 980             if (part->link) switch (part->link->cookie)
 981             {
 982             case hlp_link_link:
 983                 hlpfile = WINHELP_LookupHelpFile(part->link->lpszString);
 984                 if (part->link->window == -1)
 985                     wi = win->info;
 986                 else if (part->link->window < hlpfile->numWindows)
 987                     wi = &hlpfile->windows[part->link->window];
 988                 else
 989                 {
 990                     WINE_WARN("link to window %d/%d\n", part->link->window, hlpfile->numWindows);
 991                     break;
 992                 }
 993                 WINHELP_CreateHelpWindowByHash(hlpfile, part->link->lHash, wi,
 994                                                SW_NORMAL);
 995                 break;
 996             case hlp_link_popup:
 997                 hlpfile = WINHELP_LookupHelpFile(part->link->lpszString);
 998                 WINHELP_CreateHelpWindowByHash(hlpfile, part->link->lHash,
 999                                                WINHELP_GetPopupWindowInfo(hlpfile, hWnd, &mouse),
1000                                                SW_NORMAL);
1001                 break;
1002             case hlp_link_macro:
1003                 MACRO_ExecuteMacro(part->link->lpszString);
1004                 break;
1005             default:
1006                 WINE_FIXME("Unknown link cookie %d\n", part->link->cookie);
1007             }
1008         }
1009
1010         if (hPopupWnd)
1011             DestroyWindow(hPopupWnd);
1012         break;
1013
1014     case WM_NCDESTROY:
1015         win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
1016
1017         if (hWnd == Globals.hPopupWnd) Globals.hPopupWnd = 0;
1018
1019         bExit = (Globals.wVersion >= 4 && !lstrcmpi(win->lpszName, "main"));
1020
1021         WINHELP_DeleteWindow(win);
1022
1023         if (bExit) MACRO_Exit();
1024
1025         if (!Globals.win_list)
1026             PostQuitMessage(0);
1027         break;
1028     }
1029
1030     return DefWindowProc(hWnd, msg, wParam, lParam);
1031 }
1032
1033 /******************************************************************
1034  *              WINHELP_HistoryWndProc
1035  *
1036  *
1037  */
1038 static LRESULT CALLBACK WINHELP_HistoryWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
1039 {
1040     WINHELP_WINDOW*     win;
1041     PAINTSTRUCT         ps;
1042     HDC                 hDc;
1043     TEXTMETRIC          tm;
1044     int                 i;
1045     RECT                r;
1046
1047     switch (msg)
1048     {
1049     case WM_NCCREATE:
1050         win = (WINHELP_WINDOW*)((LPCREATESTRUCT)lParam)->lpCreateParams;
1051         SetWindowLong(hWnd, 0, (LONG)win);
1052         win->hHistoryWnd = hWnd;
1053         break;
1054     case WM_CREATE:
1055         win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
1056         hDc = GetDC(hWnd);
1057         GetTextMetrics(hDc, &tm);
1058         GetWindowRect(hWnd, &r);
1059
1060         r.right = r.left + 30 * tm.tmAveCharWidth;
1061         r.bottom = r.top + (sizeof(win->history) / sizeof(win->history[0])) * tm.tmHeight;
1062         AdjustWindowRect(&r, GetWindowLong(hWnd, GWL_STYLE), FALSE);
1063         if (r.left < 0) {r.right -= r.left; r.left = 0;}
1064         if (r.top < 0) {r.bottom -= r.top; r.top = 0;}
1065
1066         MoveWindow(hWnd, r.left, r.top, r.right, r.bottom, TRUE);
1067         ReleaseDC(hWnd, hDc);
1068         break;
1069     case WM_LBUTTONDOWN:
1070         win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
1071         hDc = GetDC(hWnd);
1072         GetTextMetrics(hDc, &tm);
1073         i = HIWORD(lParam) / tm.tmHeight;
1074         if (i < win->histIndex)
1075             WINHELP_CreateHelpWindow(win->history[i], win->info, SW_SHOW);
1076         ReleaseDC(hWnd, hDc);
1077         break;
1078     case WM_PAINT:
1079         hDc = BeginPaint(hWnd, &ps);
1080         win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
1081         GetTextMetrics(hDc, &tm);
1082
1083         for (i = 0; i < win->histIndex; i++)
1084         {
1085             TextOut(hDc, 0, i * tm.tmHeight, win->history[i]->lpszTitle,
1086                     strlen(win->history[i]->lpszTitle));
1087         }
1088         EndPaint(hWnd, &ps);
1089         break;
1090     case WM_DESTROY:
1091         win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
1092         if (hWnd == win->hHistoryWnd)
1093             win->hHistoryWnd = 0;
1094         break;
1095     }
1096     return DefWindowProc(hWnd, msg, wParam, lParam);
1097 }
1098
1099 /***********************************************************************
1100  *
1101  *           SetupText
1102  */
1103 static void WINHELP_SetupText(HWND hWnd)
1104 {
1105     HDC  hDc = GetDC(hWnd);
1106     RECT rect;
1107     SIZE newsize;
1108
1109     ShowScrollBar(hWnd, SB_VERT, FALSE);
1110     if (!WINHELP_SplitLines(hWnd, NULL))
1111     {
1112         ShowScrollBar(hWnd, SB_VERT, TRUE);
1113         GetClientRect(hWnd, &rect);
1114
1115         WINHELP_SplitLines(hWnd, &newsize);
1116         SetScrollRange(hWnd, SB_VERT, 0, rect.top + newsize.cy - rect.bottom, TRUE);
1117     }
1118     else SetScrollPos(hWnd, SB_VERT, 0, FALSE);
1119
1120     ReleaseDC(hWnd, hDc);
1121 }
1122
1123 /***********************************************************************
1124  *
1125  *           WINHELP_AppendText
1126  */
1127 static BOOL WINHELP_AppendText(WINHELP_LINE ***linep, WINHELP_LINE_PART ***partp,
1128                                LPSIZE space, LPSIZE textsize,
1129                                INT *line_ascent, INT ascent,
1130                                LPCSTR text, UINT textlen,
1131                                HFONT font, COLORREF color, HLPFILE_LINK *link,
1132                                unsigned underline)
1133 {
1134     WINHELP_LINE      *line;
1135     WINHELP_LINE_PART *part;
1136     LPSTR ptr;
1137
1138     if (!*partp) /* New line */
1139     {
1140         *line_ascent  = ascent;
1141
1142         line = HeapAlloc(GetProcessHeap(), 0,
1143                          sizeof(WINHELP_LINE) + textlen);
1144         if (!line) return FALSE;
1145
1146         line->next    = 0;
1147         part          = &line->first_part;
1148         ptr           = (char*)line + sizeof(WINHELP_LINE);
1149
1150         line->rect.top    = (**linep ? (**linep)->rect.bottom : 0) + space->cy;
1151         line->rect.bottom = line->rect.top;
1152         line->rect.left   = space->cx;
1153         line->rect.right  = space->cx;
1154
1155         if (**linep) *linep = &(**linep)->next;
1156         **linep = line;
1157         space->cy = 0;
1158     }
1159     else /* Same line */
1160     {
1161         line = **linep;
1162
1163         if (*line_ascent < ascent)
1164         {
1165             WINHELP_LINE_PART *p;
1166             for (p = &line->first_part; p; p = p->next)
1167             {
1168                 p->rect.top    += ascent - *line_ascent;
1169                 p->rect.bottom += ascent - *line_ascent;
1170             }
1171             line->rect.bottom += ascent - *line_ascent;
1172             *line_ascent = ascent;
1173         }
1174
1175         part = HeapAlloc(GetProcessHeap(), 0,
1176                          sizeof(WINHELP_LINE_PART) + textlen);
1177         if (!part) return FALSE;
1178         **partp = part;
1179         ptr     = (char*)part + sizeof(WINHELP_LINE_PART);
1180     }
1181
1182     memcpy(ptr, text, textlen);
1183     part->cookie            = hlp_line_part_text;
1184     part->rect.left         = line->rect.right + (*partp ? space->cx : 0);
1185     part->rect.right        = part->rect.left + textsize->cx;
1186     line->rect.right        = part->rect.right;
1187     part->rect.top          =
1188         ((*partp) ? line->rect.top : line->rect.bottom) + *line_ascent - ascent;
1189     part->rect.bottom       = part->rect.top + textsize->cy;
1190     line->rect.bottom       = max(line->rect.bottom, part->rect.bottom);
1191     part->u.text.lpsText    = ptr;
1192     part->u.text.wTextLen   = textlen;
1193     part->u.text.hFont      = font;
1194     part->u.text.color      = color;
1195     part->u.text.wUnderline = underline;
1196
1197     WINE_TRACE("Appended text '%*.*s'[%d] @ (%ld,%ld-%ld,%ld)\n",
1198                part->u.text.wTextLen,
1199                part->u.text.wTextLen,
1200                part->u.text.lpsText,
1201                part->u.text.wTextLen,
1202                part->rect.left, part->rect.top, part->rect.right, part->rect.bottom);
1203
1204     part->link = link;
1205     if (link) link->wRefCount++;
1206
1207     part->next          = 0;
1208     *partp              = &part->next;
1209
1210     space->cx = 0;
1211
1212     return TRUE;
1213 }
1214
1215 /***********************************************************************
1216  *
1217  *           WINHELP_AppendGfxObject
1218  */
1219 static WINHELP_LINE_PART* WINHELP_AppendGfxObject(WINHELP_LINE ***linep, WINHELP_LINE_PART ***partp,
1220                                                   LPSIZE space, LPSIZE gfxSize,
1221                                                   HLPFILE_LINK *link, unsigned pos)
1222 {
1223     WINHELP_LINE      *line;
1224     WINHELP_LINE_PART *part;
1225     LPSTR              ptr;
1226
1227     if (!*partp || pos == 1) /* New line */
1228     {
1229         line = HeapAlloc(GetProcessHeap(), 0, sizeof(WINHELP_LINE));
1230         if (!line) return NULL;
1231
1232         line->next    = NULL;
1233         part          = &line->first_part;
1234
1235         line->rect.top    = (**linep ? (**linep)->rect.bottom : 0) + space->cy;
1236         line->rect.bottom = line->rect.top;
1237         line->rect.left   = space->cx;
1238         line->rect.right  = space->cx;
1239
1240         if (**linep) *linep = &(**linep)->next;
1241         **linep = line;
1242         space->cy = 0;
1243         ptr = (char*)line + sizeof(WINHELP_LINE);
1244     }
1245     else /* Same line */
1246     {
1247         if (pos == 2) WINE_FIXME("Left alignment not handled\n");
1248         line = **linep;
1249
1250         part = HeapAlloc(GetProcessHeap(), 0, sizeof(WINHELP_LINE_PART));
1251         if (!part) return NULL;
1252         **partp = part;
1253         ptr = (char*)part + sizeof(WINHELP_LINE_PART);
1254     }
1255
1256     /* part->cookie should be set by caller (image or metafile) */
1257     part->rect.left       = line->rect.right + (*partp ? space->cx : 0);
1258     part->rect.right      = part->rect.left + gfxSize->cx;
1259     line->rect.right      = part->rect.right;
1260     part->rect.top        = (*partp) ? line->rect.top : line->rect.bottom;
1261     part->rect.bottom     = part->rect.top + gfxSize->cy;
1262     line->rect.bottom     = max(line->rect.bottom, part->rect.bottom);
1263
1264     WINE_TRACE("Appended gfx @ (%ld,%ld-%ld,%ld)\n",
1265                part->rect.left, part->rect.top, part->rect.right, part->rect.bottom);
1266
1267     part->link = link;
1268     if (link) link->wRefCount++;
1269
1270     part->next            = NULL;
1271     *partp                = &part->next;
1272
1273     space->cx = 0;
1274
1275     return part;
1276 }
1277
1278
1279 /***********************************************************************
1280  *
1281  *           WINHELP_SplitLines
1282  */
1283 static BOOL WINHELP_SplitLines(HWND hWnd, LPSIZE newsize)
1284 {
1285     WINHELP_WINDOW     *win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
1286     HLPFILE_PARAGRAPH  *p;
1287     WINHELP_LINE      **line = &win->first_line;
1288     WINHELP_LINE_PART **part = 0;
1289     INT                 line_ascent = 0;
1290     SIZE                space;
1291     RECT                rect;
1292     HDC                 hDc;
1293
1294     if (newsize) newsize->cx = newsize->cy = 0;
1295
1296     if (!win->page) return TRUE;
1297
1298     WINHELP_DeleteLines(win);
1299
1300     GetClientRect(hWnd, &rect);
1301
1302     rect.top    += INTERNAL_BORDER_WIDTH;
1303     rect.left   += INTERNAL_BORDER_WIDTH;
1304     rect.right  -= INTERNAL_BORDER_WIDTH;
1305     rect.bottom -= INTERNAL_BORDER_WIDTH;
1306
1307     space.cy = rect.top;
1308     space.cx = rect.left;
1309
1310     hDc = GetDC(hWnd);
1311
1312     for (p = win->page->first_paragraph; p; p = p->next)
1313     {
1314         switch (p->cookie)
1315         {
1316         case para_normal_text:
1317         case para_debug_text:
1318             {
1319                 TEXTMETRIC tm;
1320                 SIZE textsize    = {0, 0};
1321                 LPCSTR text      = p->u.text.lpszText;
1322                 UINT indent      = 0;
1323                 UINT len         = strlen(text);
1324                 unsigned underline = 0;
1325
1326                 HFONT hFont = 0;
1327                 COLORREF color = RGB(0, 0, 0);
1328
1329                 if (p->u.text.wFont < win->page->file->numFonts)
1330                 {
1331                     HLPFILE*    hlpfile = win->page->file;
1332
1333                     if (!hlpfile->fonts[p->u.text.wFont].hFont)
1334                         hlpfile->fonts[p->u.text.wFont].hFont = CreateFontIndirect(&hlpfile->fonts[p->u.text.wFont].LogFont);
1335                     hFont = hlpfile->fonts[p->u.text.wFont].hFont;
1336                     color = hlpfile->fonts[p->u.text.wFont].color;
1337                 }
1338                 else
1339                 {
1340                     UINT  wFont = (p->u.text.wFont < win->fonts_len) ? p->u.text.wFont : 0;
1341
1342                     hFont = win->fonts[wFont];
1343                 }
1344
1345                 if (p->link && p->link->bClrChange)
1346                 {
1347                     underline = (p->link->cookie == hlp_link_popup) ? 3 : 1;
1348                     color = RGB(0, 0x80, 0);
1349                 }
1350                 if (p->cookie == para_debug_text) color = RGB(0xff, 0, 0);
1351
1352                 SelectObject(hDc, hFont);
1353
1354                 GetTextMetrics(hDc, &tm);
1355
1356                 if (p->u.text.wIndent)
1357                 {
1358                     indent = p->u.text.wIndent * 5 * tm.tmAveCharWidth;
1359                     if (!part)
1360                         space.cx = rect.left + indent - 2 * tm.tmAveCharWidth;
1361                 }
1362
1363                 if (p->u.text.wVSpace)
1364                 {
1365                     part = 0;
1366                     space.cx = rect.left + indent;
1367                     space.cy += (p->u.text.wVSpace - 1) * tm.tmHeight;
1368                 }
1369
1370                 if (p->u.text.wHSpace)
1371                 {
1372                     space.cx += p->u.text.wHSpace * 2 * tm.tmAveCharWidth;
1373                 }
1374
1375                 WINE_TRACE("splitting text %s\n", text);
1376
1377                 while (len)
1378                 {
1379                     INT free_width = rect.right - (part ? (*line)->rect.right : rect.left) - space.cx;
1380                     UINT low = 0, curr = len, high = len, textlen = 0;
1381
1382                     if (free_width > 0)
1383                     {
1384                         while (1)
1385                         {
1386                             GetTextExtentPoint(hDc, text, curr, &textsize);
1387
1388                             if (textsize.cx <= free_width) low = curr;
1389                             else high = curr;
1390
1391                             if (high <= low + 1) break;
1392
1393                             if (textsize.cx) curr = (curr * free_width) / textsize.cx;
1394                             if (curr <= low) curr = low + 1;
1395                             else if (curr >= high) curr = high - 1;
1396                         }
1397                         textlen = low;
1398                         while (textlen && text[textlen] && text[textlen] != ' ') textlen--;
1399                     }
1400                     if (!part && !textlen) textlen = max(low, 1);
1401
1402                     if (free_width <= 0 || !textlen)
1403                     {
1404                         part = 0;
1405                         space.cx = rect.left + indent;
1406                         space.cx = min(space.cx, rect.right - rect.left - 1);
1407                         continue;
1408                     }
1409
1410                     WINE_TRACE("\t => %d %*s\n", textlen, textlen, text);
1411
1412                     if (!WINHELP_AppendText(&line, &part, &space, &textsize,
1413                                             &line_ascent, tm.tmAscent,
1414                                             text, textlen, hFont, color, p->link, underline) ||
1415                         (!newsize && (*line)->rect.bottom > rect.bottom))
1416                     {
1417                         ReleaseDC(hWnd, hDc);
1418                         return FALSE;
1419                     }
1420
1421                     if (newsize)
1422                         newsize->cx = max(newsize->cx, (*line)->rect.right + INTERNAL_BORDER_WIDTH);
1423
1424                     len -= textlen;
1425                     text += textlen;
1426                     if (text[0] == ' ') text++, len--;
1427                 }
1428             }
1429             break;
1430         case para_bitmap:
1431         case para_metafile:
1432             {
1433                 SIZE                    gfxSize;
1434                 INT                     free_width;
1435                 WINHELP_LINE_PART*      ref_part;
1436
1437                 if (p->u.gfx.pos & 0x8000)
1438                 {
1439                     space.cx = rect.left;
1440                     if (*line)
1441                         space.cy += (*line)->rect.bottom - (*line)->rect.top;
1442                     part = 0;
1443                 }
1444
1445                 if (p->cookie == para_bitmap)
1446                 {
1447                     DIBSECTION              dibs;
1448
1449                     GetObject(p->u.gfx.u.bmp.hBitmap, sizeof(dibs), &dibs);
1450                     gfxSize.cx = dibs.dsBm.bmWidth;
1451                     gfxSize.cy = dibs.dsBm.bmHeight;
1452                 }
1453                 else gfxSize = p->u.gfx.u.mf.mfSize;
1454
1455                 free_width = rect.right - ((part && *line) ? (*line)->rect.right : rect.left) - space.cx;
1456                 if (free_width <= 0)
1457                 {
1458                     part = NULL;
1459                     space.cx = rect.left;
1460                     space.cx = min(space.cx, rect.right - rect.left - 1);
1461                 }
1462                 ref_part = WINHELP_AppendGfxObject(&line, &part, &space, &gfxSize,
1463                                                    p->link, p->u.gfx.pos);
1464                 if (!ref_part || (!newsize && (*line)->rect.bottom > rect.bottom))
1465                 {
1466                     return FALSE;
1467                 }
1468                 if (p->cookie == para_bitmap)
1469                 {
1470                     ref_part->cookie = hlp_line_part_bitmap;
1471                     ref_part->u.bitmap.hBitmap = p->u.gfx.u.bmp.hBitmap;
1472                 }
1473                 else
1474                 {
1475                     ref_part->cookie = hlp_line_part_metafile;
1476                     ref_part->u.metafile.hMetaFile = p->u.gfx.u.mf.hMetaFile;
1477                 }
1478             }
1479             break;
1480         }
1481     }
1482
1483     if (newsize)
1484         newsize->cy = (*line)->rect.bottom + INTERNAL_BORDER_WIDTH;
1485
1486     ReleaseDC(hWnd, hDc);
1487     return TRUE;
1488 }
1489
1490 /***********************************************************************
1491  *
1492  *           WINHELP_CheckPopup
1493  */
1494 static void WINHELP_CheckPopup(UINT msg)
1495 {
1496     if (!Globals.hPopupWnd) return;
1497
1498     switch (msg)
1499     {
1500     case WM_COMMAND:
1501     case WM_LBUTTONDOWN:
1502     case WM_MBUTTONDOWN:
1503     case WM_RBUTTONDOWN:
1504     case WM_NCLBUTTONDOWN:
1505     case WM_NCMBUTTONDOWN:
1506     case WM_NCRBUTTONDOWN:
1507         DestroyWindow(Globals.hPopupWnd);
1508         Globals.hPopupWnd = 0;
1509     }
1510 }
1511
1512 /***********************************************************************
1513  *
1514  *           WINHELP_DeleteLines
1515  */
1516 static void WINHELP_DeleteLines(WINHELP_WINDOW *win)
1517 {
1518     WINHELP_LINE      *line, *next_line;
1519     WINHELP_LINE_PART *part, *next_part;
1520     for (line = win->first_line; line; line = next_line)
1521     {
1522         next_line = line->next;
1523         for (part = &line->first_part; part; part = next_part)
1524         {
1525             next_part = part->next;
1526             HLPFILE_FreeLink(part->link);
1527             HeapFree(GetProcessHeap(), 0, part);
1528         }
1529     }
1530     win->first_line = 0;
1531 }
1532
1533 /***********************************************************************
1534  *
1535  *           WINHELP_DeleteWindow
1536  */
1537 static void WINHELP_DeleteWindow(WINHELP_WINDOW* win)
1538 {
1539     WINHELP_WINDOW**    w;
1540     int                 i;
1541     WINHELP_BUTTON*     b;
1542     WINHELP_BUTTON*     bp;
1543
1544     for (w = &Globals.win_list; *w; w = &(*w)->next)
1545     {
1546         if (*w == win)
1547         {
1548             *w = win->next;
1549             break;
1550         }
1551     }
1552
1553     for (b = win->first_button; b; b = bp)
1554     {
1555         DestroyWindow(b->hWnd);
1556         bp = b->next;
1557         HeapFree(GetProcessHeap(), 0, b);
1558     }
1559
1560     if (win->hShadowWnd) DestroyWindow(win->hShadowWnd);
1561     if (win->hHistoryWnd) DestroyWindow(win->hHistoryWnd);
1562
1563     for (i = 0; i < win->histIndex; i++)
1564     {
1565         HLPFILE_FreeHlpFile(win->history[i]->file);
1566     }
1567
1568     for (i = 0; i < win->backIndex; i++)
1569         HLPFILE_FreeHlpFile(win->back[i]->file);
1570
1571     if (win->page) HLPFILE_FreeHlpFile(win->page->file);
1572     WINHELP_DeleteLines(win);
1573     HeapFree(GetProcessHeap(), 0, win);
1574 }
1575
1576 /***********************************************************************
1577  *
1578  *           WINHELP_InitFonts
1579  */
1580 static void WINHELP_InitFonts(HWND hWnd)
1581 {
1582     WINHELP_WINDOW *win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
1583     LOGFONT logfontlist[] = {
1584         {-10, 0, 0, 0, 400, 0, 0, 0, 0, 0, 0, 0, 32, "Helv"},
1585         {-12, 0, 0, 0, 700, 0, 0, 0, 0, 0, 0, 0, 32, "Helv"},
1586         {-12, 0, 0, 0, 700, 0, 0, 0, 0, 0, 0, 0, 32, "Helv"},
1587         {-12, 0, 0, 0, 400, 0, 0, 0, 0, 0, 0, 0, 32, "Helv"},
1588         {-12, 0, 0, 0, 700, 0, 0, 0, 0, 0, 0, 0, 32, "Helv"},
1589         {-10, 0, 0, 0, 700, 0, 0, 0, 0, 0, 0, 0, 32, "Helv"},
1590         { -8, 0, 0, 0, 400, 0, 0, 0, 0, 0, 0, 0, 32, "Helv"}};
1591 #define FONTS_LEN (sizeof(logfontlist)/sizeof(*logfontlist))
1592
1593     static HFONT fonts[FONTS_LEN];
1594     static BOOL init = 0;
1595
1596     win->fonts_len = FONTS_LEN;
1597     win->fonts = fonts;
1598
1599     if (!init)
1600     {
1601         INT i;
1602
1603         for (i = 0; i < FONTS_LEN; i++)
1604         {
1605             fonts[i] = CreateFontIndirect(&logfontlist[i]);
1606         }
1607
1608         init = 1;
1609     }
1610 }
1611
1612 /***********************************************************************
1613  *
1614  *           WINHELP_MessageBoxIDS
1615  */
1616 INT WINHELP_MessageBoxIDS(UINT ids_text, UINT ids_title, WORD type)
1617 {
1618     CHAR text[MAX_STRING_LEN];
1619     CHAR title[MAX_STRING_LEN];
1620
1621     LoadString(Globals.hInstance, ids_text, text, sizeof(text));
1622     LoadString(Globals.hInstance, ids_title, title, sizeof(title));
1623
1624     return MessageBox(0, text, title, type);
1625 }
1626
1627 /***********************************************************************
1628  *
1629  *           MAIN_MessageBoxIDS_s
1630  */
1631 INT WINHELP_MessageBoxIDS_s(UINT ids_text, LPCSTR str, UINT ids_title, WORD type)
1632 {
1633     CHAR text[MAX_STRING_LEN];
1634     CHAR title[MAX_STRING_LEN];
1635     CHAR newtext[MAX_STRING_LEN + MAX_PATHNAME_LEN];
1636
1637     LoadString(Globals.hInstance, ids_text, text, sizeof(text));
1638     LoadString(Globals.hInstance, ids_title, title, sizeof(title));
1639     wsprintf(newtext, text, str);
1640
1641     return MessageBox(0, newtext, title, type);
1642 }
1643
1644 /******************************************************************
1645  *              WINHELP_IsOverLink
1646  *
1647  *
1648  */
1649 WINHELP_LINE_PART* WINHELP_IsOverLink(WINHELP_WINDOW* win, WPARAM wParam, LPARAM lParam)
1650 {
1651     POINT mouse;
1652     WINHELP_LINE      *line;
1653     WINHELP_LINE_PART *part;
1654     int scroll_pos = GetScrollPos(win->hMainWnd, SB_VERT);
1655
1656     mouse.x = LOWORD(lParam);
1657     mouse.y = HIWORD(lParam);
1658     for (line = win->first_line; line; line = line->next)
1659     {
1660         for (part = &line->first_part; part; part = part->next)
1661         {
1662             if (part->link &&
1663                 part->link->lpszString &&
1664                 part->rect.left   <= mouse.x &&
1665                 part->rect.right  >= mouse.x &&
1666                 part->rect.top    <= mouse.y + scroll_pos &&
1667                 part->rect.bottom >= mouse.y + scroll_pos)
1668             {
1669                 return part;
1670             }
1671         }
1672     }
1673
1674     return NULL;
1675 }