trunk/Src/wptW32API.cpp

/* wptW32API.cpp - Common W32 API functions
 *      Copyright (C) 2001, 2002, 2003, 2005 Timo Schulz
 *
 * This file is part of WinPT.
 *
 * WinPT is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * WinPT 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with WinPT; if not, write to the Free Software Foundation, 
 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <windows.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <shellapi.h>
#include <shlobj.h>
#include <commctrl.h>
#include <time.h>

#include "wptNLS.h"
#include "wptW32API.h"
#include "wptErrors.h"
#include "wptVersion.h"
#include "wptTypes.h"


extern "C" void _SHFree (void *p);


/* Insert a new item into the menu @hm at position @pos. */
void
insert_menu_item (HMENU hm, int pos, UINT m_id, const char *text)
{
    MENUITEMINFO mi;

    memset (&mi, 0, sizeof mi);
    mi.cbSize = sizeof mi;
    mi.fType = MF_STRING;
    mi.dwTypeData = (char *)text;
    mi.cch = strlen (text);
    mi.wID = m_id;
    mi.fMask = MIIM_ID|MIIM_DATA| MIIM_TYPE;
    InsertMenuItem (hm, pos, FALSE, &mi);
}


static void
set_menu_text_ext (HMENU menu, int by_pos, int m_uid, const char *text)
{
    MENUITEMINFO mii;
    
    memset (&mii, 0, sizeof mii);
    mii.cbSize = sizeof mii;
    mii.fMask = MIIM_TYPE;
    mii.fType = MFT_STRING;
    mii.dwTypeData = (char *) text;
    SetMenuItemInfo (menu, m_uid, by_pos? TRUE : FALSE, &mii);
}


/* Set the text of a menu item @m_uid to @text. */
void
set_menu_text (HMENU menu, UINT m_uid, const char *text)
{
    set_menu_text_ext (menu, 0, m_uid, text);
}


/* Set the text of a menu item with the position @pos to @text. */
void
set_menu_text_bypos (HMENU menu, UINT pos, const char *text)
{
    set_menu_text_ext (menu, 1, pos, text);
}


/* Set the state of a menu item @m_uid to @state. */
void
set_menu_state (HMENU menu, UINT m_uid, UINT state)
{       
    MENUITEMINFO mii;

    memset (&mii, 0, sizeof (mii));
    mii.cbSize = sizeof (mii);
    mii.fMask = MIIM_STATE;
    mii.fState = state;
    SetMenuItemInfo (menu, m_uid, FALSE, &mii);
}


/* Retrieve the state of the menu item @m_uid and return it. */
UINT
get_menu_state (HMENU menu, UINT m_uid)
{
    MENUITEMINFO mii;

    memset (&mii, 0, sizeof (mii));
    mii.cbSize = sizeof (mii);
    mii.fMask = MIIM_STATE;
    GetMenuItemInfo (menu, m_uid, FALSE, &mii);
    return mii.fState;
}


enum {
    CDLG_FILE_OPEN = 0,
    CDLG_FILE_SAVE = 1
};

/* Use the common dialog to request a file from the user. 
   id can be either FILE_OPEN or FILE_SAVE. 
   The return value is the file name or NULL if cancel was chosen. */
const char *
get_filename_dlg (HWND hwnd, int id, const char *title, 
                  const char *filter, const char *name)
{
    static char file[512] = "";
    OPENFILENAME open;
    
    if (name && strlen (name) < (sizeof (file)-1))
        strcpy (file, name);
    else
        memset (file, 0, sizeof (file));
    if (!filter)
        filter = "All Files (*.*)\0*.*\0\0";
    /* XXX: problem with gettext because of the 'artificial' 
            double string termination!. */
    memset (&open, 0, sizeof (open));
    open.lStructSize = sizeof (OPENFILENAME);
    open.hInstance = glob_hinst;
    open.lpstrTitle = title;
    open.lpstrFilter = filter;
    open.hwndOwner = hwnd;
    open.lpstrFile = file;
    open.nMaxFile = sizeof (file) - 1;
    if (id == CDLG_FILE_OPEN)
        open.Flags = OFN_FILEMUSTEXIST|OFN_PATHMUSTEXIST;
    else
        open.Flags = OFN_OVERWRITEPROMPT;

    if (id == CDLG_FILE_OPEN && GetOpenFileName (&open))
        return open.lpstrFile;
    else if (id == CDLG_FILE_SAVE && GetSaveFileName (&open))
        return open.lpstrFile;
    
    return NULL;
}

const char*
get_filesave_dlg (HWND hwnd, const char *title,
                  const char *filter, const char *name)
{
    return get_filename_dlg (hwnd, CDLG_FILE_SAVE, title, filter, name);
}

const char*
get_fileopen_dlg (HWND hwnd, const char *title, const char *filter,
                  const char *name)
{
    return get_filename_dlg (hwnd, CDLG_FILE_OPEN, title, filter, name);
}


/* Use the common dialog to allow the user to select a folder.
   The return value is either the folder path or NULL if cancel was chosen. */
const char*
get_folder_dlg (HWND hwnd, const char *title, const char *name)
{
    static char folder[MAX_PATH+1] = "";
    BROWSEINFO bi;
    ITEMIDLIST *il;

    memset (&bi, 0, sizeof (bi));
    bi.hwndOwner = hwnd;
    if (title)
        bi.lpszTitle = title;
    if (name && strlen (name) < MAX_PATH-1)
        strcpy (folder, name);
    else
        memset (folder, 0, sizeof (folder));
    il = SHBrowseForFolder (&bi);
    if (il) {
        SHGetPathFromIDList (il, folder);
        _SHFree (il);
        return folder;
    }
    return NULL;
}


/* Return the clipboard contents as a string or NULL
   if the clipboard does not contain text. */
char*
get_clip_text (HWND hwnd)
{
    HANDLE clipmem;
    char *cliptxt, *p;  
    int len;
    
    if (OpenClipboard (hwnd) == FALSE)
        return NULL;
    clipmem = GetClipboardData (CF_TEXT);
    if (clipmem == NULL) {
        p = NULL;
        goto leave;
    }
    cliptxt = (char *) GlobalLock (clipmem);
    if (cliptxt == NULL) {
        p = NULL;
        goto leave;
    }
    
    len =  strlen (cliptxt);
    p = new char[len + 1];
    if (!p)
        BUG (NULL);
    memcpy (p, cliptxt, len);
    p[len] = '\0';
    GlobalUnlock (clipmem);
    
leave:
    CloseClipboard ();
    return p;
}


/* Set @text as the new clipboard content. */
int
set_clip_text (HWND hwnd, const char *text, int nbytes)
{    
    HANDLE clipmem;
    int rc = 0;
    char *p;
    
    if (OpenClipboard (hwnd) == FALSE)  
        return WPTERR_CLIP_OPEN;
    EmptyClipboard ();

    clipmem = GlobalAlloc (GHND, nbytes + 1);
    if (clipmem == NULL)
        BUG (NULL);
    p = (char *) GlobalLock (clipmem);
    if (p == NULL) {
        CloseClipboard ();
        GlobalFree (clipmem);
        return WPTERR_GENERAL;
    }
    memcpy (p, text, nbytes);
    p[nbytes] = '\0';
    
    SetClipboardData (CF_TEXT, clipmem);
    GlobalUnlock (clipmem);
    CloseClipboard ();
    GlobalFree (clipmem);
    
    return rc;
}


/* Append or prepend some text to the clipboard contents.
   If as_footer = 1, append the text otherwise prepend. */
int
set_clip_text2 (HWND hwnd, const char *text, int nbytes, int as_footer)
{
    char *p, *new_text;

    p = get_clip_text (hwnd);
    if (!p)
        return WPTERR_CLIP_GET;
    new_text = new char [strlen (p)+strlen (text)+8];
    if (!new_text)
        BUG (0);
    if (as_footer == 0)
        sprintf (new_text, "%s\r\n%s\r\n\r\n", text, p);
    else
        sprintf (new_text, "%s\n%s\n\n", p, text);
    set_clip_text (hwnd, new_text, strlen (new_text)+1);
    free_if_alloc (p);
    free_if_alloc (new_text);
    return 0;
}


/* Make a file name out of the path @path, the file @file and 
   an extension. @ext.
   Return value: the full file name on success. */
char*
make_filename (const char *path, const char *file, const char *ext)
{
    char *p;
    size_t size = 0;

    if( path && *path )
        size += strlen( path );
    if( file && *file )
        size += strlen( file );
    if( ext && *ext )
        size += strlen( ext );
    p = new char[size + 4];
    memset( p, 0, size );
    if( path ) {
        strcat( p, path );
        if( path[strlen( path ) -1] != '\\' )
            strcat( p, "\\" );
    }
    if( file )
        strcat( p, file );
    if( ext ) {
        strcat( p, "." );
        strcat( p, ext );
    }
    return p;
}


/* Generate a file name from a special dirctory. */
char*
make_special_filename (int folder, const char *file, const char *ext)
{
    BOOL ec;
    char path[MAX_PATH], *p;
    size_t n=0;

    /* MSDN: buf must be at least MAX_PATH=256 bytes */
    ec = SHGetSpecialFolderPath (HWND_DESKTOP, path, folder, TRUE);
    if (ec != 1) {
        log_debug ("SHGetSpecialFolderPath() failed\r\n", (int)GetLastError ());
        return NULL;
    }

    n = strlen (path)+1;
    if (file)
        n += strlen (file)+1;
    if (ext)
        n += strlen (ext)+1;
    p = new char[n+2];
    if (!p)
        BUG (0);
    memset (p, 0, n+2);
    strcpy (p, path);    
    if (file) {
        strcat (p, "\\");
        strcat (p, file);
    }
    if (ext)
        strcat (p, ext);
    return p;
}


/* return 0 if the file @fname exists, otherwise >0. */
int
file_exist_check (const char *fname)
{
    struct stat st;
    if (stat (fname, &st) == -1)
        return WPTERR_FILE_EXIST;
    return 0;
}


/* Check if the current folder exists.
   Return 0 for success. */
int
dir_exist_check (const char *dir)
{
    struct stat statbuf;    
    
    if (stat (dir, &statbuf) == -1)
        return WPTERR_GENERAL;
    if (statbuf.st_mode & _S_IFDIR)
        return 0;
    return WPTERR_GENERAL;
}


/* Return the file size of the given file @fname. */
DWORD
get_file_size (const char *fname)
{
    DWORD fsize;
    HANDLE fh;

    fh = CreateFile (fname, GENERIC_READ, FILE_SHARE_READ,
                     NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
    if (fh == INVALID_HANDLE_VALUE)
        return 0;
    fsize = GetFileSize (fh, NULL);
    if (fsize == 0xFFFFFFFF)
        fsize = 0;
    CloseHandle (fh);
    return fsize;
}


/* Start a dialog with the exception that before it is checked that the
   dialog is not already openened. */
int
dialog_box_param (HINSTANCE hinst, LPCTSTR name, HWND parent, DLGPROC fnc, 
                  LPARAM param, LPCTSTR title, int title_id)
{
    if (FindWindowEx (GetDesktopWindow (), NULL, NULL, title))
        return -1;
    return DialogBoxParam (hinst, name, parent, fnc, param);
}


/* Wrapper for message box which forces the message box into the
   foreground and it is displayed always on top. */
int
msg_box (HWND hwnd, const char *text, const char *title, int mode)
{
    mode |= MB_SETFOREGROUND;
    mode |= MB_TASKMODAL;
    mode |= MB_TOPMOST;
    return MessageBox(hwnd, text, title, mode);
}


/* Safe strdup version (C++ version). */
char*
m_strdup (const char *str)
{
    char *p = new char[strlen (str) + 1];
    if (!p)
        BUG (NULL);
    strcpy (p, str);
    return p;
}


/* Center the hwndChild relative to parent.
   The style param allows to specificy additional styles (like topmost). */
void
center_window2 (HWND hwndChild, HWND parent, HWND style) 
{     
    HWND hwndParent;
    RECT rChild, rParent;    
    HDC hdc;
    int wChild, hChild, wParent, hParent;     
    int wScreen, hScreen, xNew, yNew;
    int flags = SWP_NOSIZE | SWP_NOZORDER;

    hwndParent = parent;
    if (hwndParent == NULL)
        hwndParent = GetDesktopWindow ();
    GetWindowRect (hwndChild, &rChild);     
    wChild = rChild.right - rChild.left;     
    hChild = rChild.bottom - rChild.top;

    GetWindowRect (hwndParent, &rParent);     
    wParent = rParent.right - rParent.left;     
    hParent = rParent.bottom - rParent.top;      
    
    hdc = GetDC (hwndChild);     
    wScreen = GetDeviceCaps (hdc, HORZRES);     
    hScreen = GetDeviceCaps (hdc, VERTRES);     
    ReleaseDC (hwndChild, hdc);      
    xNew = rParent.left + ((wParent - wChild) /2);     
    if (xNew < 0)
        xNew = 0;
    else if ((xNew+wChild) > wScreen) 
        xNew = wScreen - wChild;
    yNew = rParent.top  + ((hParent - hChild) /2);
    if (yNew < 0)
        yNew = 0;
    else if ((yNew+hChild) > hScreen)
        yNew = hScreen - hChild;
    if (style == HWND_TOPMOST || style == HWND_NOTOPMOST)
        flags = SWP_NOMOVE | SWP_NOSIZE;
    SetWindowPos (hwndChild, style? style : NULL, xNew, yNew, 0, 0, flags);
}


/* Center the given hwndChild window with no special style. */
void
center_window (HWND hwndChild, HWND hwndParent) 
{
    center_window2 (hwndChild, hwndParent, NULL);
}


/* Retrieve the product verion of the given file @fname.
   Format: MAJOR.MINOR.PATCH1.PATCH2
   Return value: 0 on success. */
int
get_file_version (const char *fname, WORD *major, WORD *minor, 
                  WORD *patch1, WORD *patch2)
{
    VS_FIXEDFILEINFO *inf = {0};
    char file[MAX_PATH+1] = {0};
    LPVOID buf, data;
    DWORD arg;
    DWORD size;
    UINT qlen;

    strncpy (file, fname, MAX_PATH);
    size = GetFileVersionInfoSize (file, &arg);
    if (!size)
        return -1;
    buf = (LPVOID)new CHAR[size];
    if (!buf)
        BUG (NULL);
    GetFileVersionInfo (file, 0, size, buf);

    qlen=0;
    VerQueryValue (buf, "\\", &data, &qlen);
    if (!qlen) {
        delete [] (char*)buf;
        return -1;
    }
    inf = (VS_FIXEDFILEINFO*)data;

    if (major)
        *major = HIWORD (inf->dwProductVersionMS);
    if (minor)
        *minor = LOWORD (inf->dwProductVersionMS);
    if (patch1)
        *patch1 = HIWORD (inf->dwProductVersionLS);     
    if (patch2)
        *patch2 = LOWORD (inf->dwProductVersionLS);

    delete [] (char*)buf;
    return 0;
}


/* Return date in a format which complies with the
   system locale settings. */
const char*
get_locale_date (long tm_t, char *buf, DWORD buflen)
{ 
    SYSTEMTIME st; 
    struct tm *ptm;

    ptm = localtime (&tm_t);  
    st.wYear = (WORD)ptm->tm_year;
    st.wMonth = (WORD)ptm->tm_mon;
    st.wDay = (WORD)ptm->tm_mday;
    st.wYear += 1900;
    st.wMonth += 1;
    if (!GetDateFormat (LOCALE_USER_DEFAULT, DATE_SHORTDATE, &st, 
                        NULL, buf, buflen))
        return NULL;
    return buf;
}


/* Generate a temporary file name by using the users
   temp path and optionally a name @name provided by the caller.
   Return value: 0 on success. */
int
get_temp_name (char *buf, DWORD buflen, const char *name)
{
    char tmp[32];

    if (!name) {
        sprintf (tmp, "%08lX", GetTickCount ());
        name = tmp;
    }

    /* in the mobile mode we use a local temp folder 
       with the fixed name 'temp'. */
    if (mobile_mode_active) {
        _snprintf (buf, buflen-1, "temp\\%s", name);
        return 0;
    }

    if (!GetTempPath (buflen - strlen (name) -2, buf)) {
        log_debug ("GetTempPath() failed ec=%d\n", (int)GetLastError ());
        return -1;
    }
    strcat (buf, name);
    return 0;
}


struct reminder_hd_s {
    int msecs;
    HWND dlg;
    HANDLE hd;
};


static DWORD CALLBACK
foreground_reminder_thread (void *c)
{
    struct reminder_hd_s *ctx = (struct reminder_hd_s *)c;
    Sleep (ctx->msecs);
    SetForegroundWindow (ctx->dlg);
    CloseHandle (ctx->hd);
    delete ctx;
    ExitThread (0);
    return 0;
}

/* Try to force the window @dlg to the foreground.
   On NT5 or later this will not work if the user
   is working in another window (console for example). */
void
force_foreground_window (HWND dlg, int msecs)
{
    struct reminder_hd_s *hd;
    DWORD tid;

    hd = new reminder_hd_s;
    hd->dlg = dlg;
    hd->msecs = msecs;
    hd->hd = CreateThread (NULL, 0, foreground_reminder_thread, 
                           hd, NULL, &tid);
}
1	werner	36	/* wptW32API.cpp - Common W32 API functions
2	twoaday	121	* Copyright (C) 2001, 2002, 2003, 2005 Timo Schulz
3	werner	36	*
4			* This file is part of WinPT.
5			*
6			* WinPT is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation; either version 2 of the License, or
9			* (at your option) any later version.
10			*
11			* WinPT 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
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with WinPT; if not, write to the Free Software Foundation,
18			* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
19			*/
20	twoaday	121
21	werner	36	#ifdef HAVE_CONFIG_H
22			#include <config.h>
23			#endif
24
25			#include <windows.h>
26			#include <stdio.h>
27			#include <sys/types.h>
28			#include <sys/stat.h>
29			#include <shellapi.h>
30			#include <shlobj.h>
31			#include <commctrl.h>
32	twoaday	129	#include <time.h>
33	werner	36
34			#include "wptNLS.h"
35			#include "wptW32API.h"
36			#include "wptErrors.h"
37			#include "wptVersion.h"
38			#include "wptTypes.h"
39
40
41			extern "C" void _SHFree (void *p);
42
43
44	twoaday	193
45			/* Insert a new item into the menu @hm at position @pos. */
46			void
47			insert_menu_item (HMENU hm, int pos, UINT m_id, const char *text)
48			{
49			MENUITEMINFO mi;
50
51			memset (&mi, 0, sizeof mi);
52			mi.cbSize = sizeof mi;
53			mi.fType = MF_STRING;
54			mi.dwTypeData = (char *)text;
55			mi.cch = strlen (text);
56			mi.wID = m_id;
57			mi.fMask = MIIM_ID\|MIIM_DATA\| MIIM_TYPE;
58			InsertMenuItem (hm, pos, FALSE, &mi);
59			}
60
61
62	werner	36	static void
63			set_menu_text_ext (HMENU menu, int by_pos, int m_uid, const char *text)
64			{
65			MENUITEMINFO mii;
66
67			memset (&mii, 0, sizeof mii);
68			mii.cbSize = sizeof mii;
69			mii.fMask = MIIM_TYPE;
70			mii.fType = MFT_STRING;
71			mii.dwTypeData = (char *) text;
72			SetMenuItemInfo (menu, m_uid, by_pos? TRUE : FALSE, &mii);
73			}
74
75
76			/* Set the text of a menu item @m_uid to @text. */
77			void
78	twoaday	129	set_menu_text (HMENU menu, UINT m_uid, const char *text)
79	werner	36	{
80			set_menu_text_ext (menu, 0, m_uid, text);
81			}
82
83
84			/* Set the text of a menu item with the position @pos to @text. */
85			void
86	twoaday	129	set_menu_text_bypos (HMENU menu, UINT pos, const char *text)
87	werner	36	{
88			set_menu_text_ext (menu, 1, pos, text);
89			}
90
91
92			/* Set the state of a menu item @m_uid to @state. */
93			void
94	twoaday	129	set_menu_state (HMENU menu, UINT m_uid, UINT state)
95	werner	36	{
96			MENUITEMINFO mii;
97
98	twoaday	121	memset (&mii, 0, sizeof (mii));
99	werner	36	mii.cbSize = sizeof (mii);
100			mii.fMask = MIIM_STATE;
101			mii.fState = state;
102			SetMenuItemInfo (menu, m_uid, FALSE, &mii);
103			}
104
105
106	twoaday	129	/* Retrieve the state of the menu item @m_uid and return it. */
107			UINT
108			get_menu_state (HMENU menu, UINT m_uid)
109			{
110			MENUITEMINFO mii;
111
112			memset (&mii, 0, sizeof (mii));
113			mii.cbSize = sizeof (mii);
114			mii.fMask = MIIM_STATE;
115			GetMenuItemInfo (menu, m_uid, FALSE, &mii);
116			return mii.fState;
117			}
118
119
120	twoaday	77	enum {
121			CDLG_FILE_OPEN = 0,
122			CDLG_FILE_SAVE = 1
123			};
124	werner	36
125			/* Use the common dialog to request a file from the user.
126			id can be either FILE_OPEN or FILE_SAVE.
127			The return value is the file name or NULL if cancel was chosen. */
128			const char *
129	twoaday	193	get_filename_dlg (HWND hwnd, int id, const char *title,
130			const char filter, const char name)
131	werner	36	{
132			static char file[512] = "";
133			OPENFILENAME open;
134
135			if (name && strlen (name) < (sizeof (file)-1))
136			strcpy (file, name);
137			else
138			memset (file, 0, sizeof (file));
139			if (!filter)
140	twoaday	167	filter = "All Files (.)\0.\0\0";
141	werner	36	/* XXX: problem with gettext because of the 'artificial'
142			double string termination!. */
143			memset (&open, 0, sizeof (open));
144			open.lStructSize = sizeof (OPENFILENAME);
145			open.hInstance = glob_hinst;
146			open.lpstrTitle = title;
147			open.lpstrFilter = filter;
148			open.hwndOwner = hwnd;
149			open.lpstrFile = file;
150			open.nMaxFile = sizeof (file) - 1;
151	twoaday	77	if (id == CDLG_FILE_OPEN)
152	werner	36	open.Flags = OFN_FILEMUSTEXIST\|OFN_PATHMUSTEXIST;
153			else
154			open.Flags = OFN_OVERWRITEPROMPT;
155
156	twoaday	77	if (id == CDLG_FILE_OPEN && GetOpenFileName (&open))
157	werner	36	return open.lpstrFile;
158	twoaday	77	else if (id == CDLG_FILE_SAVE && GetSaveFileName (&open))
159	werner	36	return open.lpstrFile;
160
161			return NULL;
162			}
163
164			const char*
165			get_filesave_dlg (HWND hwnd, const char *title,
166			const char filter, const char name)
167			{
168	twoaday	77	return get_filename_dlg (hwnd, CDLG_FILE_SAVE, title, filter, name);
169	werner	36	}
170
171	twoaday	121	const char*
172	werner	36	get_fileopen_dlg (HWND hwnd, const char title, const char filter,
173			const char *name)
174			{
175	twoaday	77	return get_filename_dlg (hwnd, CDLG_FILE_OPEN, title, filter, name);
176	werner	36	}
177
178
179			/* Use the common dialog to allow the user to select a folder.
180			The return value is either the folder path or NULL if cancel was chosen. */
181			const char*
182	twoaday	121	get_folder_dlg (HWND hwnd, const char title, const char name)
183	werner	36	{
184			static char folder[MAX_PATH+1] = "";
185			BROWSEINFO bi;
186	twoaday	121	ITEMIDLIST *il;
187	werner	36
188			memset (&bi, 0, sizeof (bi));
189			bi.hwndOwner = hwnd;
190			if (title)
191			bi.lpszTitle = title;
192			if (name && strlen (name) < MAX_PATH-1)
193			strcpy (folder, name);
194			else
195			memset (folder, 0, sizeof (folder));
196			il = SHBrowseForFolder (&bi);
197			if (il) {
198			SHGetPathFromIDList (il, folder);
199			_SHFree (il);
200			return folder;
201			}
202			return NULL;
203			}
204
205
206			/* Return the clipboard contents as a string or NULL
207			if the clipboard does not contain text. */
208			char*
209			get_clip_text (HWND hwnd)
210			{
211			HANDLE clipmem;
212			char cliptxt, p;
213			int len;
214
215			if (OpenClipboard (hwnd) == FALSE)
216			return NULL;
217			clipmem = GetClipboardData (CF_TEXT);
218			if (clipmem == NULL) {
219			p = NULL;
220			goto leave;
221			}
222			cliptxt = (char *) GlobalLock (clipmem);
223			if (cliptxt == NULL) {
224			p = NULL;
225			goto leave;
226			}
227
228			len = strlen (cliptxt);
229			p = new char[len + 1];
230			if (!p)
231			BUG (NULL);
232			memcpy (p, cliptxt, len);
233			p[len] = '\0';
234			GlobalUnlock (clipmem);
235
236			leave:
237			CloseClipboard ();
238			return p;
239			}
240
241
242			/* Set @text as the new clipboard content. */
243			int
244			set_clip_text (HWND hwnd, const char *text, int nbytes)
245			{
246			HANDLE clipmem;
247			int rc = 0;
248			char *p;
249
250			if (OpenClipboard (hwnd) == FALSE)
251			return WPTERR_CLIP_OPEN;
252			EmptyClipboard ();
253
254			clipmem = GlobalAlloc (GHND, nbytes + 1);
255			if (clipmem == NULL)
256			BUG (NULL);
257			p = (char *) GlobalLock (clipmem);
258			if (p == NULL) {
259	twoaday	196	CloseClipboard ();
260			GlobalFree (clipmem);
261			return WPTERR_GENERAL;
262	werner	36	}
263			memcpy (p, text, nbytes);
264			p[nbytes] = '\0';
265
266	twoaday	196	SetClipboardData (CF_TEXT, clipmem);
267	werner	36	GlobalUnlock (clipmem);
268	twoaday	196	CloseClipboard ();
269	twoaday	181	GlobalFree (clipmem);
270	werner	36
271			return rc;
272	twoaday	181	}
273	werner	36
274
275			/* Append or prepend some text to the clipboard contents.
276			If as_footer = 1, append the text otherwise prepend. */
277			int
278			set_clip_text2 (HWND hwnd, const char *text, int nbytes, int as_footer)
279			{
280			char p, new_text;
281
282			p = get_clip_text (hwnd);
283			if (!p)
284			return WPTERR_CLIP_GET;
285			new_text = new char [strlen (p)+strlen (text)+8];
286			if (!new_text)
287			BUG (0);
288			if (as_footer == 0)
289			sprintf (new_text, "%s\r\n%s\r\n\r\n", text, p);
290			else
291			sprintf (new_text, "%s\n%s\n\n", p, text);
292			set_clip_text (hwnd, new_text, strlen (new_text)+1);
293			free_if_alloc (p);
294			free_if_alloc (new_text);
295			return 0;
296			}
297
298
299	twoaday	121	/* Make a file name out of the path @path, the file @file and
300			an extension. @ext.
301			Return value: the full file name on success. */
302	werner	36	char*
303			make_filename (const char path, const char file, const char *ext)
304			{
305			char *p;
306			size_t size = 0;
307
308			if( path && *path )
309			size += strlen( path );
310			if( file && *file )
311			size += strlen( file );
312			if( ext && *ext )
313			size += strlen( ext );
314			p = new char[size + 4];
315			memset( p, 0, size );
316			if( path ) {
317			strcat( p, path );
318			if( path[strlen( path ) -1] != '\\' )
319			strcat( p, "\\" );
320			}
321			if( file )
322			strcat( p, file );
323			if( ext ) {
324			strcat( p, "." );
325			strcat( p, ext );
326			}
327			return p;
328	twoaday	121	}
329	werner	36
330
331	twoaday	150	/* Generate a file name from a special dirctory. */
332			char*
333			make_special_filename (int folder, const char file, const char ext)
334			{
335			BOOL ec;
336			char path[MAX_PATH], *p;
337			size_t n=0;
338
339			/* MSDN: buf must be at least MAX_PATH=256 bytes */
340			ec = SHGetSpecialFolderPath (HWND_DESKTOP, path, folder, TRUE);
341			if (ec != 1) {
342			log_debug ("SHGetSpecialFolderPath() failed\r\n", (int)GetLastError ());
343			return NULL;
344			}
345
346			n = strlen (path)+1;
347			if (file)
348			n += strlen (file)+1;
349			if (ext)
350			n += strlen (ext)+1;
351			p = new char[n+2];
352			if (!p)
353			BUG (0);
354			memset (p, 0, n+2);
355			strcpy (p, path);
356			if (file) {
357			strcat (p, "\\");
358			strcat (p, file);
359			}
360			if (ext)
361			strcat (p, ext);
362			return p;
363			}
364
365
366	twoaday	121	/* return 0 if the file @fname exists, otherwise >0. */
367	werner	36	int
368	twoaday	121	file_exist_check (const char *fname)
369	werner	36	{
370			struct stat st;
371			if (stat (fname, &st) == -1)
372			return WPTERR_FILE_EXIST;
373			return 0;
374			}
375
376
377			/* Check if the current folder exists.
378			Return 0 for success. */
379			int
380			dir_exist_check (const char *dir)
381			{
382			struct stat statbuf;
383
384	twoaday	105	if (stat (dir, &statbuf) == -1)
385	werner	36	return WPTERR_GENERAL;
386	twoaday	105	if (statbuf.st_mode & _S_IFDIR)
387	werner	36	return 0;
388			return WPTERR_GENERAL;
389			}
390
391
392	twoaday	77	/* Return the file size of the given file @fname. */
393			DWORD
394	werner	36	get_file_size (const char *fname)
395			{
396	twoaday	77	DWORD fsize;
397	werner	36	HANDLE fh;
398
399	twoaday	77	fh = CreateFile (fname, GENERIC_READ, FILE_SHARE_READ,
400			NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
401			if (fh == INVALID_HANDLE_VALUE)
402	werner	36	return 0;
403	twoaday	77	fsize = GetFileSize (fh, NULL);
404			if (fsize == 0xFFFFFFFF)
405	werner	36	fsize = 0;
406	twoaday	77	CloseHandle (fh);
407	werner	36	return fsize;
408	twoaday	77	}
409	werner	36
410
411			/* Start a dialog with the exception that before it is checked that the
412			dialog is not already openened. */
413			int
414	twoaday	105	dialog_box_param (HINSTANCE hinst, LPCTSTR name, HWND parent, DLGPROC fnc,
415			LPARAM param, LPCTSTR title, int title_id)
416	werner	36	{
417	twoaday	105	if (FindWindowEx (GetDesktopWindow (), NULL, NULL, title))
418	werner	36	return -1;
419	twoaday	105	return DialogBoxParam (hinst, name, parent, fnc, param);
420			}
421	werner	36
422
423			/* Wrapper for message box which forces the message box into the
424			foreground and it is displayed always on top. */
425			int
426			msg_box (HWND hwnd, const char text, const char title, int mode)
427			{
428			mode \|= MB_SETFOREGROUND;
429			mode \|= MB_TASKMODAL;
430			mode \|= MB_TOPMOST;
431			return MessageBox(hwnd, text, title, mode);
432			}
433
434
435	twoaday	121	/* Safe strdup version (C++ version). */
436	werner	36	char*
437			m_strdup (const char *str)
438			{
439	twoaday	121	char *p = new char[strlen (str) + 1];
440			if (!p)
441			BUG (NULL);
442			strcpy (p, str);
443	werner	36	return p;
444	twoaday	121	}
445	werner	36
446
447			/* Center the hwndChild relative to parent.
448			The style param allows to specificy additional styles (like topmost). */
449			void
450			center_window2 (HWND hwndChild, HWND parent, HWND style)
451			{
452			HWND hwndParent;
453			RECT rChild, rParent;
454			HDC hdc;
455			int wChild, hChild, wParent, hParent;
456			int wScreen, hScreen, xNew, yNew;
457			int flags = SWP_NOSIZE \| SWP_NOZORDER;
458
459			hwndParent = parent;
460			if (hwndParent == NULL)
461			hwndParent = GetDesktopWindow ();
462			GetWindowRect (hwndChild, &rChild);
463			wChild = rChild.right - rChild.left;
464			hChild = rChild.bottom - rChild.top;
465
466			GetWindowRect (hwndParent, &rParent);
467			wParent = rParent.right - rParent.left;
468			hParent = rParent.bottom - rParent.top;
469
470			hdc = GetDC (hwndChild);
471			wScreen = GetDeviceCaps (hdc, HORZRES);
472			hScreen = GetDeviceCaps (hdc, VERTRES);
473			ReleaseDC (hwndChild, hdc);
474			xNew = rParent.left + ((wParent - wChild) /2);
475			if (xNew < 0)
476			xNew = 0;
477			else if ((xNew+wChild) > wScreen)
478			xNew = wScreen - wChild;
479			yNew = rParent.top + ((hParent - hChild) /2);
480			if (yNew < 0)
481			yNew = 0;
482			else if ((yNew+hChild) > hScreen)
483			yNew = hScreen - hChild;
484			if (style == HWND_TOPMOST \|\| style == HWND_NOTOPMOST)
485			flags = SWP_NOMOVE \| SWP_NOSIZE;
486			SetWindowPos (hwndChild, style? style : NULL, xNew, yNew, 0, 0, flags);
487			}
488
489
490			/* Center the given hwndChild window with no special style. */
491			void
492			center_window (HWND hwndChild, HWND hwndParent)
493			{
494			center_window2 (hwndChild, hwndParent, NULL);
495			}
496	twoaday	121
497
498			/* Retrieve the product verion of the given file @fname.
499			Format: MAJOR.MINOR.PATCH1.PATCH2
500			Return value: 0 on success. */
501			int
502			get_file_version (const char fname, WORD major, WORD *minor,
503			WORD patch1, WORD patch2)
504			{
505			VS_FIXEDFILEINFO *inf = {0};
506			char file[MAX_PATH+1] = {0};
507			LPVOID buf, data;
508			DWORD arg;
509			DWORD size;
510			UINT qlen;
511
512			strncpy (file, fname, MAX_PATH);
513			size = GetFileVersionInfoSize (file, &arg);
514			if (!size)
515			return -1;
516			buf = (LPVOID)new CHAR[size];
517			if (!buf)
518			BUG (NULL);
519			GetFileVersionInfo (file, 0, size, buf);
520
521			qlen=0;
522			VerQueryValue (buf, "\\", &data, &qlen);
523			if (!qlen) {
524			delete [] (char*)buf;
525			return -1;
526			}
527			inf = (VS_FIXEDFILEINFO*)data;
528
529			if (major)
530			*major = HIWORD (inf->dwProductVersionMS);
531			if (minor)
532			*minor = LOWORD (inf->dwProductVersionMS);
533			if (patch1)
534			*patch1 = HIWORD (inf->dwProductVersionLS);
535			if (patch2)
536			*patch2 = LOWORD (inf->dwProductVersionLS);
537
538			delete [] (char*)buf;
539			return 0;
540			}
541
542
543	twoaday	129	/* Return date in a format which complies with the
544			system locale settings. */
545			const char*
546			get_locale_date (long tm_t, char *buf, DWORD buflen)
547			{
548			SYSTEMTIME st;
549			struct tm *ptm;
550	twoaday	121
551	twoaday	129	ptm = localtime (&tm_t);
552			st.wYear = (WORD)ptm->tm_year;
553			st.wMonth = (WORD)ptm->tm_mon;
554			st.wDay = (WORD)ptm->tm_mday;
555			st.wYear += 1900;
556			st.wMonth += 1;
557			if (!GetDateFormat (LOCALE_USER_DEFAULT, DATE_SHORTDATE, &st,
558			NULL, buf, buflen))
559			return NULL;
560			return buf;
561			}
562	twoaday	121
563
564	twoaday	175	/* Generate a temporary file name by using the users
565			temp path and optionally a name @name provided by the caller.
566			Return value: 0 on success. */
567			int
568			get_temp_name (char buf, DWORD buflen, const char name)
569			{
570			char tmp[32];
571
572			if (!name) {
573			sprintf (tmp, "%08lX", GetTickCount ());
574			name = tmp;
575			}
576	twoaday	190
577			/* in the mobile mode we use a local temp folder
578			with the fixed name 'temp'. */
579			if (mobile_mode_active) {
580			_snprintf (buf, buflen-1, "temp\\%s", name);
581			return 0;
582			}
583
584	twoaday	175	if (!GetTempPath (buflen - strlen (name) -2, buf)) {
585			log_debug ("GetTempPath() failed ec=%d\n", (int)GetLastError ());
586			return -1;
587			}
588			strcat (buf, name);
589			return 0;
590			}
591
592
593	twoaday	129	struct reminder_hd_s {
594			int msecs;
595			HWND dlg;
596			HANDLE hd;
597			};
598	twoaday	121
599
600	twoaday	129	static DWORD CALLBACK
601			foreground_reminder_thread (void *c)
602			{
603			struct reminder_hd_s ctx = (struct reminder_hd_s )c;
604			Sleep (ctx->msecs);
605			SetForegroundWindow (ctx->dlg);
606			CloseHandle (ctx->hd);
607			delete ctx;
608			ExitThread (0);
609	twoaday	121	return 0;
610	twoaday	129	}
611	twoaday	121
612	twoaday	129	/* Try to force the window @dlg to the foreground.
613			On NT5 or later this will not work if the user
614			is working in another window (console for example). */
615			void
616			force_foreground_window (HWND dlg, int msecs)
617			{
618			struct reminder_hd_s *hd;
619			DWORD tid;
620	twoaday	121
621	twoaday	129	hd = new reminder_hd_s;
622			hd->dlg = dlg;
623			hd->msecs = msecs;
624			hd->hd = CreateThread (NULL, 0, foreground_reminder_thread,
625			hd, NULL, &tid);
626			}