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Sweden-Number/programs/winhelp/winhelp.c

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/*
* Help Viewer
*
* Copyright 1996 Ulrich Schmid <uschmid@mail.hh.provi.de>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <string.h>
#include "winbase.h"
#include "windowsx.h"
#include "winhelp.h"
static BOOL WINHELP_RegisterWinClasses();
static LRESULT CALLBACK WINHELP_MainWndProc(HWND, UINT, WPARAM, LPARAM);
static LRESULT CALLBACK WINHELP_TextWndProc(HWND, UINT, WPARAM, LPARAM);
static LRESULT CALLBACK WINHELP_ButtonBoxWndProc(HWND, UINT, WPARAM, LPARAM);
static VOID WINHELP_CheckPopup(UINT);
static BOOL WINHELP_SplitLines(HWND hWnd, LPSIZE);
static VOID WINHELP_InitFonts(HWND hWnd);
static VOID WINHELP_DeleteLines(WINHELP_WINDOW*);
static VOID WINHELP_DeleteWindow(WINHELP_WINDOW*);
static VOID WINHELP_SetupText(HWND hWnd);
static BOOL WINHELP_AppendText(WINHELP_LINE***, WINHELP_LINE_PART***,
LPSIZE, LPSIZE, INT*, INT, LPCSTR, UINT,
HFONT, COLORREF, HLPFILE_LINK*);
static WINHELP_LINE_PART* WINHELP_IsOverLink(HWND hWnd, WPARAM wParam, LPARAM lParam);
WINHELP_GLOBALS Globals = {3, 0, 0, 0, 0, 0};
static BOOL MacroTest = FALSE;
/***********************************************************************
*
* WinMain
*/
int PASCAL WinMain (HINSTANCE hInstance, HINSTANCE prev, LPSTR cmdline, int show)
{
LPCSTR opt_lang = "En";
CHAR lang[3];
MSG msg;
LONG lHash = 0;
INT langnum;
Globals.hInstance = hInstance;
/* Get options */
while (*cmdline && (*cmdline == ' ' || *cmdline == '-'))
{
CHAR option;
LPCSTR topic_id;
if (*cmdline++ == ' ') continue;
option = *cmdline;
if (option) cmdline++;
while (*cmdline && *cmdline == ' ') cmdline++;
switch(option)
{
case 'i':
case 'I':
topic_id = cmdline;
while (*cmdline && *cmdline != ' ') cmdline++;
if (*cmdline) *cmdline++ = '\0';
lHash = HLPFILE_Hash(topic_id);
break;
case '3':
case '4':
Globals.wVersion = option - '0';
break;
case 't':
MacroTest = TRUE;
break;
}
}
/* Find language specific string table */
for (langnum = 0; langnum <= MAX_LANGUAGE_NUMBER; langnum++)
{
Globals.wStringTableOffset = langnum * 0x100;
if (LoadString(hInstance, IDS_LANGUAGE_ID, lang, sizeof(lang)) &&
!lstrcmp(opt_lang, lang))
break;
}
if (langnum > MAX_LANGUAGE_NUMBER)
{
/* Find fallback language */
for (langnum = 0; langnum <= MAX_LANGUAGE_NUMBER; langnum++)
{
Globals.wStringTableOffset = langnum * 0x100;
if (LoadString(hInstance, IDS_LANGUAGE_ID, lang, sizeof(lang)))
break;
}
if (langnum > MAX_LANGUAGE_NUMBER)
{
MessageBox(0, "No language found", "FATAL ERROR", MB_OK);
return(1);
}
}
/* Change Resource names */
lstrcpyn(STRING_MENU_Xx + lstrlen(STRING_MENU_Xx) - 2, lang, 3);
/* Create primary window */
WINHELP_RegisterWinClasses();
WINHELP_CreateHelpWindow(cmdline, lHash, "main", FALSE, NULL, NULL, show);
/* Message loop */
while (GetMessage (&msg, 0, 0, 0))
{
TranslateMessage (&msg);
DispatchMessage (&msg);
}
return 0;
}
/***********************************************************************
*
* RegisterWinClasses
*/
static BOOL WINHELP_RegisterWinClasses()
{
WNDCLASS class_main, class_button_box, class_text, class_shadow;
class_main.style = CS_HREDRAW | CS_VREDRAW;
class_main.lpfnWndProc = WINHELP_MainWndProc;
class_main.cbClsExtra = 0;
class_main.cbWndExtra = sizeof(LONG);
class_main.hInstance = Globals.hInstance;
class_main.hIcon = LoadIcon (0, IDI_APPLICATION);
class_main.hCursor = LoadCursor (0, IDC_ARROW);
class_main.hbrBackground = GetStockObject (WHITE_BRUSH);
class_main.lpszMenuName = 0;
class_main.lpszClassName = MAIN_WIN_CLASS_NAME;
class_button_box = class_main;
class_button_box.lpfnWndProc = WINHELP_ButtonBoxWndProc;
class_button_box.hbrBackground = GetStockObject(GRAY_BRUSH);
class_button_box.lpszClassName = BUTTON_BOX_WIN_CLASS_NAME;
class_text = class_main;
class_text.lpfnWndProc = WINHELP_TextWndProc;
class_text.lpszClassName = TEXT_WIN_CLASS_NAME;
class_shadow = class_main;
class_shadow.lpfnWndProc = DefWindowProc;
class_shadow.hbrBackground = GetStockObject(GRAY_BRUSH);
class_shadow.lpszClassName = SHADOW_WIN_CLASS_NAME;
return (RegisterClass(&class_main) &&
RegisterClass(&class_button_box) &&
RegisterClass(&class_text) &&
RegisterClass(&class_shadow));
}
/***********************************************************************
*
* WINHELP_CreateHelpWindow
*/
VOID WINHELP_CreateHelpWindow(LPCSTR lpszFile, LONG lHash, LPCSTR lpszWindow,
BOOL bPopup, HWND hParentWnd, LPPOINT mouse, INT nCmdShow)
{
CHAR szCaption[MAX_STRING_LEN];
CHAR szContents[MAX_STRING_LEN];
CHAR szSearch[MAX_STRING_LEN];
CHAR szBack[MAX_STRING_LEN];
CHAR szHistory[MAX_STRING_LEN];
SIZE size = {CW_USEDEFAULT, CW_USEDEFAULT};
POINT origin = {240, 0};
LPSTR ptr;
HGLOBAL handle;
WINHELP_WINDOW *win, *oldwin;
HLPFILE_PAGE *page;
HLPFILE_MACRO *macro;
HWND hWnd;
BOOL bPrimary;
if (bPopup)
lpszWindow = NULL;
else if (!lpszWindow || !lpszWindow[0])
lpszWindow = Globals.active_win->lpszName;
bPrimary = lpszWindow && !lstrcmpi(lpszWindow, "main");
/* Read help file */
if (lpszFile[0])
{
page = lHash ? HLPFILE_PageByHash(lpszFile, lHash) : HLPFILE_Contents(lpszFile);
/* Add Suffix `.hlp' */
if (!page && lstrcmpi(lpszFile + strlen(lpszFile) - 4, ".hlp"))
{
CHAR szFile_hlp[MAX_PATHNAME_LEN];
lstrcpyn(szFile_hlp, lpszFile, sizeof(szFile_hlp) - 4);
szFile_hlp[sizeof(szFile_hlp) - 5] = '\0';
lstrcat(szFile_hlp, ".hlp");
page = lHash ? HLPFILE_PageByHash(szFile_hlp, lHash) : HLPFILE_Contents(szFile_hlp);
if (!page)
{
WINHELP_MessageBoxIDS_s(IDS_HLPFILE_ERROR_s, lpszFile, IDS_ERROR, MB_OK);
if (Globals.win_list) return;
}
}
}
else page = 0;
/* Calculate horizontal size and position of a popup window */
if (bPopup)
{
RECT parent_rect;
GetWindowRect(hParentWnd, &parent_rect);
size.cx = (parent_rect.right - parent_rect.left) / 2;
origin = *mouse;
ClientToScreen(hParentWnd, &origin);
origin.x -= size.cx / 2;
origin.x = min(origin.x, GetSystemMetrics(SM_CXSCREEN) - size.cx);
origin.x = max(origin.x, 0);
}
/* Initialize WINHELP_WINDOW struct */
handle = GlobalAlloc(GMEM_FIXED, sizeof(WINHELP_WINDOW) +
(lpszWindow ? strlen(lpszWindow) + 1 : 0));
if (!handle) return;
win = GlobalLock(handle);
win->hSelf = handle;
win->next = Globals.win_list;
Globals.win_list = win;
if (lpszWindow)
{
ptr = GlobalLock(handle);
ptr += sizeof(WINHELP_WINDOW);
lstrcpy(ptr, (LPSTR) lpszWindow);
win->lpszName = ptr;
}
else win->lpszName = NULL;
win->page = page;
win->first_button = 0;
win->first_line = 0;
win->hMainWnd = 0;
win->hButtonBoxWnd = 0;
win->hTextWnd = 0;
win->hShadowWnd = 0;
win->hArrowCur = LoadCursorA(0, IDC_ARROWA);
win->hHandCur = LoadCursorA(0, IDC_HANDA);
Globals.active_win = win;
/* Initialize default pushbuttons */
if (MacroTest && !bPopup)
MACRO_CreateButton("BTN_TEST", "&Test", "MacroTest");
if (bPrimary && page)
{
LoadString(Globals.hInstance, IDS_CONTENTS, szContents, sizeof(szContents));
LoadString(Globals.hInstance, IDS_SEARCH, szSearch, sizeof(szSearch));
LoadString(Globals.hInstance, IDS_BACK, szBack, sizeof(szBack));
LoadString(Globals.hInstance, IDS_HISTORY, szHistory, sizeof(szHistory));
MACRO_CreateButton("BTN_CONTENTS", szContents, "Contents()");
MACRO_CreateButton("BTN_SEARCH", szSearch, "Search()");
MACRO_CreateButton("BTN_BACK", szBack, "Back()");
MACRO_CreateButton("BTN_HISTORY", szHistory, "History()");
}
/* Initialize file specific pushbuttons */
if (!bPopup && page)
for (macro = page->file->first_macro; macro; macro = macro->next)
MACRO_ExecuteMacro(macro->lpszMacro);
/* Reuse existing window */
if (lpszWindow)
for (oldwin = win->next; oldwin; oldwin = oldwin->next)
if (oldwin->lpszName && !lstrcmpi(oldwin->lpszName, lpszWindow))
{
WINHELP_BUTTON *button;
win->hMainWnd = oldwin->hMainWnd;
win->hButtonBoxWnd = oldwin->hButtonBoxWnd;
win->hTextWnd = oldwin->hTextWnd;
oldwin->hMainWnd = oldwin->hButtonBoxWnd = oldwin->hTextWnd = 0;
SetWindowLong(win->hMainWnd, 0, (LONG) win);
SetWindowLong(win->hButtonBoxWnd, 0, (LONG) win);
SetWindowLong(win->hTextWnd, 0, (LONG) win);
WINHELP_InitFonts(win->hMainWnd);
if (page) {
SetWindowText(win->hMainWnd, page->file->lpszTitle);
}
WINHELP_SetupText(win->hTextWnd);
InvalidateRect(win->hTextWnd, NULL, TRUE);
SendMessage(win->hMainWnd, WM_USER, 0, 0);
UpdateWindow(win->hTextWnd);
for (button = oldwin->first_button; button; button = button->next)
DestroyWindow(button->hWnd);
WINHELP_DeleteWindow(oldwin);
return;
}
/* Create main Window */
if (!page) LoadString(Globals.hInstance, IDS_WINE_HELP, szCaption, sizeof(szCaption));
hWnd = CreateWindow (bPopup ? TEXT_WIN_CLASS_NAME : MAIN_WIN_CLASS_NAME,
page ? page->file->lpszTitle : szCaption,
bPopup ? WS_POPUPWINDOW | WS_BORDER : WS_OVERLAPPEDWINDOW,
origin.x, origin.y, size.cx, size.cy,
0, bPrimary ? LoadMenu(Globals.hInstance, STRING_MENU_Xx) : 0,
Globals.hInstance, win);
ShowWindow (hWnd, nCmdShow);
UpdateWindow (hWnd);
}
/***********************************************************************
*
* WINHELP_MainWndProc
*/
static LRESULT CALLBACK WINHELP_MainWndProc (HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
WINHELP_WINDOW *win;
WINHELP_BUTTON *button;
RECT rect, button_box_rect;
INT text_top;
WINHELP_CheckPopup(msg);
switch (msg)
{
case WM_NCCREATE:
win = (WINHELP_WINDOW*) ((LPCREATESTRUCT) lParam)->lpCreateParams;
SetWindowLong(hWnd, 0, (LONG) win);
win->hMainWnd = hWnd;
break;
case WM_CREATE:
win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
/* Create button box and text Window */
CreateWindow(BUTTON_BOX_WIN_CLASS_NAME, "", WS_CHILD | WS_VISIBLE,
0, 0, 0, 0, hWnd, 0, Globals.hInstance, win);
CreateWindow(TEXT_WIN_CLASS_NAME, "", WS_CHILD | WS_VISIBLE,
0, 0, 0, 0, hWnd, 0, Globals.hInstance, win);
/* Fall through */
case WM_USER:
case WM_WINDOWPOSCHANGED:
win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
GetClientRect(hWnd, &rect);
/* Update button box and text Window */
SetWindowPos(win->hButtonBoxWnd, HWND_TOP,
rect.left, rect.top,
rect.right - rect.left,
rect.bottom - rect.top, 0);
GetWindowRect(win->hButtonBoxWnd, &button_box_rect);
text_top = rect.top + button_box_rect.bottom - button_box_rect.top;
SetWindowPos(win->hTextWnd, HWND_TOP,
rect.left, text_top,
rect.right - rect.left,
rect.bottom - text_top, 0);
break;
case WM_COMMAND:
Globals.active_win = win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
switch (wParam)
{
/* Menu FILE */
case WH_OPEN: MACRO_FileOpen(); break;
case WH_PRINT: MACRO_Print(); break;
case WH_PRINTER_SETUP: MACRO_PrinterSetup(); break;
case WH_EXIT: MACRO_Exit(); break;
/* Menu EDIT */
case WH_COPY_DIALOG: MACRO_CopyDialog(); break;
case WH_ANNOTATE: MACRO_Annotate(); break;
/* Menu Bookmark */
case WH_BOOKMARK_DEFINE: MACRO_BookmarkDefine(); break;
/* Menu Help */
case WH_HELP_ON_HELP: MACRO_HelpOn(); break;
case WH_HELP_ON_TOP: MACRO_HelpOnTop(); break;
/* Menu Info */
case WH_ABOUT: MACRO_About(); break;
case WH_ABOUT_WINE:
ShellAbout(hWnd, "WINE", "Help", 0);
break;
default:
/* Buttons */
for (button = win->first_button; button; button = button->next)
if (wParam == button->wParam) break;
if (button)
MACRO_ExecuteMacro(button->lpszMacro);
else
WINHELP_MessageBoxIDS(IDS_NOT_IMPLEMENTED, IDS_ERROR, MB_OK);
break;
}
break;
}
return DefWindowProc (hWnd, msg, wParam, lParam);
}
/***********************************************************************
*
* WINHELP_ButtonBoxWndProc
*/
static LRESULT CALLBACK WINHELP_ButtonBoxWndProc (HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
WINDOWPOS *winpos;
WINHELP_WINDOW *win;
WINHELP_BUTTON *button;
SIZE button_size;
INT x, y;
WINHELP_CheckPopup(msg);
switch(msg)
{
case WM_NCCREATE:
win = (WINHELP_WINDOW*) ((LPCREATESTRUCT) lParam)->lpCreateParams;
SetWindowLong(hWnd, 0, (LONG) win);
win->hButtonBoxWnd = hWnd;
break;
case WM_WINDOWPOSCHANGING:
winpos = (WINDOWPOS*) lParam;
win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
/* Update buttons */
button_size.cx = 0;
button_size.cy = 0;
for (button = win->first_button; button; button = button->next)
{
HDC hDc;
SIZE textsize;
if (!button->hWnd)
button->hWnd = CreateWindow(STRING_BUTTON, (LPSTR) button->lpszName,
WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,
0, 0, 0, 0,
hWnd, (HMENU) button->wParam,
Globals.hInstance, 0);
hDc = GetDC(button->hWnd);
GetTextExtentPoint(hDc, button->lpszName,
lstrlen(button->lpszName), &textsize);
ReleaseDC(button->hWnd, hDc);
button_size.cx = max(button_size.cx, textsize.cx + BUTTON_CX);
button_size.cy = max(button_size.cy, textsize.cy + BUTTON_CY);
}
x = 0;
y = 0;
for (button = win->first_button; button; button = button->next)
{
SetWindowPos(button->hWnd, HWND_TOP, x, y, button_size.cx, button_size.cy, 0);
if (x + 2 * button_size.cx <= winpos->cx)
x += button_size.cx;
else
x = 0, y += button_size.cy;
}
winpos->cy = y + (x ? button_size.cy : 0);
break;
case WM_COMMAND:
SendMessage(GetParent(hWnd), msg, wParam, lParam);
break;
}
return(DefWindowProc(hWnd, msg, wParam, lParam));
}
/***********************************************************************
*
* WINHELP_TextWndProc
*/
static LRESULT CALLBACK WINHELP_TextWndProc (HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
WINHELP_WINDOW *win;
WINHELP_LINE *line;
WINHELP_LINE_PART *part;
WINDOWPOS *winpos;
PAINTSTRUCT ps;
HDC hDc;
POINT mouse;
INT scroll_pos;
HWND hPopupWnd;
BOOL bExit;
if (msg != WM_LBUTTONDOWN)
WINHELP_CheckPopup(msg);
switch (msg)
{
case WM_NCCREATE:
win = (WINHELP_WINDOW*) ((LPCREATESTRUCT) lParam)->lpCreateParams;
SetWindowLong(hWnd, 0, (LONG) win);
win->hTextWnd = hWnd;
if (!win->lpszName) Globals.hPopupWnd = win->hMainWnd = hWnd;
WINHELP_InitFonts(hWnd);
break;
case WM_CREATE:
win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
/* Calculate vertical size and position of a popup window */
if (!win->lpszName)
{
POINT origin;
RECT old_window_rect;
RECT old_client_rect;
SIZE old_window_size;
SIZE old_client_size;
SIZE new_client_size;
SIZE new_window_size;
GetWindowRect(hWnd, &old_window_rect);
origin.x = old_window_rect.left;
origin.y = old_window_rect.top;
old_window_size.cx = old_window_rect.right - old_window_rect.left;
old_window_size.cy = old_window_rect.bottom - old_window_rect.top;
GetClientRect(hWnd, &old_client_rect);
old_client_size.cx = old_client_rect.right - old_client_rect.left;
old_client_size.cy = old_client_rect.bottom - old_client_rect.top;
new_client_size = old_client_size;
WINHELP_SplitLines(hWnd, &new_client_size);
if (origin.y + POPUP_YDISTANCE + new_client_size.cy <= GetSystemMetrics(SM_CYSCREEN))
origin.y += POPUP_YDISTANCE;
else
origin.y -= POPUP_YDISTANCE + new_client_size.cy;
new_window_size.cx = old_window_size.cx - old_client_size.cx + new_client_size.cx;
new_window_size.cy = old_window_size.cy - old_client_size.cy + new_client_size.cy;
win->hShadowWnd =
CreateWindow(SHADOW_WIN_CLASS_NAME, "", WS_POPUP | WS_VISIBLE,
origin.x + SHADOW_DX, origin.y + SHADOW_DY,
new_window_size.cx, new_window_size.cy,
0, 0, Globals.hInstance, 0);
SetWindowPos(hWnd, HWND_TOP, origin.x, origin.y,
new_window_size.cx, new_window_size.cy,
SWP_NOZORDER | SWP_NOACTIVATE);
ShowWindow(win->hShadowWnd, SW_NORMAL);
}
break;
case WM_WINDOWPOSCHANGED:
winpos = (WINDOWPOS*) lParam;
if (!(winpos->flags & SWP_NOSIZE)) WINHELP_SetupText(hWnd);
break;
case WM_VSCROLL:
{
BOOL update = TRUE;
RECT rect;
INT Min, Max;
INT CurPos = GetScrollPos(hWnd, SB_VERT);
GetScrollRange(hWnd, SB_VERT, &Min, &Max);
GetClientRect(hWnd, &rect);
switch (wParam & 0xffff)
{
case SB_THUMBTRACK:
case SB_THUMBPOSITION: CurPos = wParam >> 16; break;
case SB_TOP: CurPos = Min; break;
case SB_BOTTOM: CurPos = Max; break;
case SB_PAGEUP: CurPos -= (rect.bottom - rect.top) / 2; break;
case SB_PAGEDOWN: CurPos += (rect.bottom - rect.top) / 2; break;
case SB_LINEUP: CurPos -= GetSystemMetrics(SM_CXVSCROLL); break;
case SB_LINEDOWN: CurPos += GetSystemMetrics(SM_CXVSCROLL); break;
default: update = FALSE;
}
if (update)
{
INT dy = GetScrollPos(hWnd, SB_VERT) - CurPos;
SetScrollPos(hWnd, SB_VERT, CurPos, TRUE);
ScrollWindow(hWnd, 0, dy, NULL, NULL);
UpdateWindow(hWnd);
}
}
break;
case WM_PAINT:
hDc = BeginPaint (hWnd, &ps);
win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
scroll_pos = GetScrollPos(hWnd, SB_VERT);
for (line = win->first_line; line; line = line->next)
for (part = &line->first_part; part; part = part->next)
{
SelectObject(hDc, part->hFont);
SetTextColor(hDc, part->color);
TextOut(hDc, part->rect.left, part->rect.top - scroll_pos,
(LPSTR) part->lpsText, part->wTextLen);
}
EndPaint (hWnd, &ps);
break;
case WM_MOUSEMOVE:
win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
if(WINHELP_IsOverLink(hWnd, wParam, lParam))
SetCursor(win->hHandCur); /* set to hand pointer cursor to indicate a link */
else
SetCursor(win->hArrowCur); /* set to hand pointer cursor to indicate a link */
break;
case WM_LBUTTONDOWN:
win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
hPopupWnd = Globals.hPopupWnd;
Globals.hPopupWnd = 0;
part = WINHELP_IsOverLink(hWnd, wParam, lParam);
if(part)
{
mouse.x = LOWORD(lParam);
mouse.y = HIWORD(lParam);
WINHELP_CreateHelpWindow(part->link.lpszPath, part->link.lHash, NULL,
part->link.bPopup, hWnd, &mouse, SW_NORMAL);
}
if (hPopupWnd)
DestroyWindow(hPopupWnd);
break;
case WM_NCDESTROY:
win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
if (hWnd == Globals.hPopupWnd) Globals.hPopupWnd = 0;
bExit = (Globals.wVersion >= 4 && !lstrcmpi(win->lpszName, "main"));
WINHELP_DeleteWindow(win);
if (bExit) MACRO_Exit();
if (!Globals.win_list)
PostQuitMessage (0);
break;
}
return DefWindowProc (hWnd, msg, wParam, lParam);
}
/***********************************************************************
*
* SetupText
*/
static VOID WINHELP_SetupText(HWND hWnd)
{
HDC hDc = GetDC(hWnd);
RECT rect;
SIZE newsize;
ShowScrollBar(hWnd, SB_VERT, FALSE);
if (!WINHELP_SplitLines(hWnd, NULL))
{
ShowScrollBar(hWnd, SB_VERT, TRUE);
GetClientRect(hWnd, &rect);
WINHELP_SplitLines(hWnd, &newsize);
SetScrollRange(hWnd, SB_VERT, 0, rect.top + newsize.cy - rect.bottom, TRUE);
}
else SetScrollPos(hWnd, SB_VERT, 0, FALSE);
ReleaseDC(hWnd, hDc);
}
/***********************************************************************
*
* WINHELP_SplitLines
*/
static BOOL WINHELP_SplitLines(HWND hWnd, LPSIZE newsize)
{
WINHELP_WINDOW *win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
HLPFILE_PARAGRAPH *p;
WINHELP_LINE **line = &win->first_line;
WINHELP_LINE_PART **part = 0;
INT line_ascent = 0;
SIZE space;
RECT rect;
HDC hDc;
if (newsize) newsize->cx = newsize->cy = 0;
if (!win->page) return TRUE;
WINHELP_DeleteLines(win);
GetClientRect(hWnd, &rect);
rect.top += INTERNAL_BORDER_WIDTH;
rect.left += INTERNAL_BORDER_WIDTH;
rect.right -= INTERNAL_BORDER_WIDTH;
rect.bottom -= INTERNAL_BORDER_WIDTH;
space.cy = rect.top;
space.cx = rect.left;
hDc = GetDC(hWnd);
for (p = win->page->first_paragraph; p; p = p->next)
{
TEXTMETRIC tm;
SIZE textsize = {0, 0};
LPCSTR text = p->lpszText;
UINT len = strlen(text);
UINT indent = 0;
UINT wFont = (p->wFont < win->fonts_len) ? p->wFont : 0;
BOOL bUnderline = p->link && !p->link->bPopup;
HFONT hFont = win->fonts[wFont][bUnderline ? 1 : 0];
COLORREF color = RGB(0, 0, 0);
if (p->link) color = RGB(0, 0x80, 0);
if (p->bDebug) color = RGB(0xff, 0, 0);
SelectObject(hDc, hFont);
GetTextMetrics (hDc, &tm);
if (p->wIndent)
{
indent = p->wIndent * 5 * tm.tmAveCharWidth;
if (!part)
space.cx = rect.left + indent - 2 * tm.tmAveCharWidth;
}
if (p->wVSpace)
{
part = 0;
space.cx = rect.left + indent;
space.cy += (p->wVSpace - 1) * tm.tmHeight;
}
if (p->wHSpace)
{
space.cx += p->wHSpace * 2 * tm.tmAveCharWidth;
}
while (len)
{
INT free_width = rect.right - (part ? (*line)->rect.right : rect.left) - space.cx;
UINT low = 0, curr = len, high = len, textlen = 0;
if (free_width > 0)
{
while (1)
{
GetTextExtentPoint(hDc, text, curr, &textsize);
if (textsize.cx <= free_width) low = curr;
else high = curr;
if (high <= low + 1) break;
if (textsize.cx) curr = (curr * free_width) / textsize.cx;
if (curr <= low) curr = low + 1;
else if (curr >= high) curr = high - 1;
}
textlen = low;
while (textlen && text[textlen] && text[textlen] != ' ') textlen--;
}
if (!part && !textlen) textlen = max(low, 1);
if (free_width <= 0 || !textlen)
{
part = 0;
space.cx = rect.left + indent;
space.cx = min(space.cx, rect.right - rect.left - 1);
continue;
}
if (!WINHELP_AppendText(&line, &part, &space, &textsize,
&line_ascent, tm.tmAscent,
text, textlen, hFont, color, p->link) ||
(!newsize && (*line)->rect.bottom > rect.bottom))
{
ReleaseDC(hWnd, hDc);
return FALSE;
}
if (newsize)
newsize->cx = max(newsize->cx, (*line)->rect.right + INTERNAL_BORDER_WIDTH);
len -= textlen;
text += textlen;
if (text[0] == ' ') text++, len--;
}
}
if (newsize)
newsize->cy = (*line)->rect.bottom + INTERNAL_BORDER_WIDTH;
ReleaseDC(hWnd, hDc);
return TRUE;
}
/***********************************************************************
*
* WINHELP_AppendText
*/
static BOOL WINHELP_AppendText(WINHELP_LINE ***linep, WINHELP_LINE_PART ***partp,
LPSIZE space, LPSIZE textsize,
INT *line_ascent, INT ascent,
LPCSTR text, UINT textlen,
HFONT font, COLORREF color, HLPFILE_LINK *link)
{
HGLOBAL handle;
WINHELP_LINE *line;
WINHELP_LINE_PART *part;
LPSTR ptr;
if (!*partp) /* New line */
{
*line_ascent = ascent;
handle = GlobalAlloc(GMEM_FIXED, sizeof(WINHELP_LINE) + textlen +
(link ? lstrlen(link->lpszPath) + 1 : 0));
if (!handle) return FALSE;
line = GlobalLock(handle);
line->next = 0;
part = &line->first_part;
ptr = GlobalLock(handle);
ptr += sizeof(WINHELP_LINE);
line->rect.top = (**linep ? (**linep)->rect.bottom : 0) + space->cy;
line->rect.bottom = line->rect.top;
line->rect.left = space->cx;
line->rect.right = space->cx;
if (**linep) *linep = &(**linep)->next;
**linep = line;
space->cy = 0;
}
else /* Same line */
{
line = **linep;
if (*line_ascent < ascent)
{
WINHELP_LINE_PART *p;
for (p = &line->first_part; p; p = p->next)
{
p->rect.top += ascent - *line_ascent;
p->rect.bottom += ascent - *line_ascent;
}
line->rect.bottom += ascent - *line_ascent;
*line_ascent = ascent;
}
handle = GlobalAlloc(GMEM_FIXED, sizeof(WINHELP_LINE_PART) + textlen +
(link ? lstrlen(link->lpszPath) + 1 : 0));
if (!handle) return FALSE;
part = GlobalLock(handle);
**partp = part;
ptr = GlobalLock(handle);
ptr += sizeof(WINHELP_LINE_PART);
}
memcpy(ptr, text, textlen);
part->rect.left = line->rect.right + (*partp ? space->cx : 0);
part->rect.right = part->rect.left + textsize->cx;
line->rect.right = part->rect.right;
part->rect.top =
((*partp) ? line->rect.top : line->rect.bottom) + *line_ascent - ascent;
part->rect.bottom = part->rect.top + textsize->cy;
line->rect.bottom = max(line->rect.bottom, part->rect.bottom);
part->hSelf = handle;
part->lpsText = ptr;
part->wTextLen = textlen;
part->hFont = font;
part->color = color;
if (link)
{
strcpy(ptr + textlen, link->lpszPath);
part->link.lpszPath = ptr + textlen;
part->link.lHash = link->lHash;
part->link.bPopup = link->bPopup;
}
else part->link.lpszPath = 0;
part->next = 0;
*partp = &part->next;
space->cx = 0;
return TRUE;
}
/***********************************************************************
*
* WINHELP_CheckPopup
*/
static VOID WINHELP_CheckPopup(UINT msg)
{
if (!Globals.hPopupWnd) return;
switch (msg)
{
case WM_COMMAND:
case WM_LBUTTONDOWN:
case WM_MBUTTONDOWN:
case WM_RBUTTONDOWN:
case WM_NCLBUTTONDOWN:
case WM_NCMBUTTONDOWN:
case WM_NCRBUTTONDOWN:
DestroyWindow(Globals.hPopupWnd);
Globals.hPopupWnd = 0;
}
}
/***********************************************************************
*
* WINHELP_DeleteLines
*/
static VOID WINHELP_DeleteLines(WINHELP_WINDOW *win)
{
WINHELP_LINE *line, *next_line;
WINHELP_LINE_PART *part, *next_part;
for(line = win->first_line; line; line = next_line)
{
next_line = line->next;
for(part = &line->first_part; part; part = next_part)
{
next_part = part->next;
GlobalFree(part->hSelf);
}
}
win->first_line = 0;
}
/***********************************************************************
*
* WINHELP_DeleteWindow
*/
static VOID WINHELP_DeleteWindow(WINHELP_WINDOW *win)
{
WINHELP_WINDOW **w;
for (w = &Globals.win_list; *w; w = &(*w)->next)
if (*w == win)
{
*w = win->next;
break;
}
if (win->hShadowWnd) DestroyWindow(win->hShadowWnd);
HLPFILE_FreeHlpFilePage(win->page);
WINHELP_DeleteLines(win);
GlobalFree(win->hSelf);
}
/***********************************************************************
*
* WINHELP_InitFonts
*/
static VOID WINHELP_InitFonts(HWND hWnd)
{
WINHELP_WINDOW *win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
LOGFONT logfontlist[] = {
{-10, 0, 0, 0, 400, 0, 0, 0, 0, 0, 0, 0, 32, "Helv"},
{-12, 0, 0, 0, 700, 0, 0, 0, 0, 0, 0, 0, 32, "Helv"},
{-12, 0, 0, 0, 700, 0, 0, 0, 0, 0, 0, 0, 32, "Helv"},
{-12, 0, 0, 0, 400, 0, 0, 0, 0, 0, 0, 0, 32, "Helv"},
{-12, 0, 0, 0, 700, 0, 0, 0, 0, 0, 0, 0, 32, "Helv"},
{-10, 0, 0, 0, 700, 0, 0, 0, 0, 0, 0, 0, 32, "Helv"},
{ -8, 0, 0, 0, 400, 0, 0, 0, 0, 0, 0, 0, 32, "Helv"}};
#define FONTS_LEN (sizeof(logfontlist)/sizeof(*logfontlist))
static HFONT fonts[FONTS_LEN][2];
static BOOL init = 0;
win->fonts_len = FONTS_LEN;
win->fonts = fonts;
if (!init)
{
INT i;
for(i = 0; i < FONTS_LEN; i++)
{
LOGFONT logfont = logfontlist[i];
fonts[i][0] = CreateFontIndirect(&logfont);
logfont.lfUnderline = 1;
fonts[i][1] = CreateFontIndirect(&logfont);
}
init = 1;
}
}
/***********************************************************************
*
* WINHELP_MessageBoxIDS
*/
INT WINHELP_MessageBoxIDS(UINT ids_text, UINT ids_title, WORD type)
{
CHAR text[MAX_STRING_LEN];
CHAR title[MAX_STRING_LEN];
LoadString(Globals.hInstance, ids_text, text, sizeof(text));
LoadString(Globals.hInstance, ids_title, title, sizeof(title));
return(MessageBox(0, text, title, type));
}
/***********************************************************************
*
* MAIN_MessageBoxIDS_s
*/
INT WINHELP_MessageBoxIDS_s(UINT ids_text, LPCSTR str, UINT ids_title, WORD type)
{
CHAR text[MAX_STRING_LEN];
CHAR title[MAX_STRING_LEN];
CHAR newtext[MAX_STRING_LEN + MAX_PATHNAME_LEN];
LoadString(Globals.hInstance, ids_text, text, sizeof(text));
LoadString(Globals.hInstance, ids_title, title, sizeof(title));
wsprintf(newtext, text, str);
return(MessageBox(0, newtext, title, type));
}
WINHELP_LINE_PART* WINHELP_IsOverLink(HWND hWnd, WPARAM wParam, LPARAM lParam)
{
WINHELP_WINDOW* win = (WINHELP_WINDOW*) GetWindowLong(hWnd, 0);
POINT mouse;
WINHELP_LINE *line;
WINHELP_LINE_PART *part;
int scroll_pos = GetScrollPos(hWnd, SB_VERT);
mouse.x = LOWORD(lParam);
mouse.y = HIWORD(lParam);
for (line = win->first_line; line; line = line->next)
{
for (part = &line->first_part; part; part = part->next)
{
if (part->link.lpszPath &&
part->rect.left <= mouse.x &&
part->rect.right >= mouse.x &&
part->rect.top <= mouse.y + scroll_pos &&
part->rect.bottom >= mouse.y + scroll_pos)
{
return part;
}
}
}
return NULL;
}
/* Local Variables: */
/* c-file-style: "GNU" */
/* End: */
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