winefile.c

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/*
 * Winefile
 *
 * Copyright 2000, 2003, 2004, 2005 Martin Fuchs
 * Copyright 2006 Jason Green
 *
 * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#ifdef __WINE__
#include "config.h"
#include "wine/port.h"

/* for unix filesystem function calls */
#include <sys/stat.h>
#include <sys/types.h>
#include <dirent.h>
#endif

#define COBJMACROS

#include "winefile.h"
#include "resource.h"
#include "wine/unicode.h"

#ifndef _MAX_PATH
#define _MAX_DRIVE          3
#define _MAX_FNAME          256
#define _MAX_DIR            _MAX_FNAME
#define _MAX_EXT            _MAX_FNAME
#define _MAX_PATH           260
#endif

#ifdef NONAMELESSUNION
#define UNION_MEMBER(x) DUMMYUNIONNAME.x
#else
#define UNION_MEMBER(x) x
#endif

#define DEFAULT_SPLIT_POS   300

static const WCHAR registry_key[] = { 'S','o','f','t','w','a','r','e','\\',
                                      'W','i','n','e','\\',
                                      'W','i','n','e','F','i','l','e','\0'};
static const WCHAR reg_start_x[] = { 's','t','a','r','t','X','\0'};
static const WCHAR reg_start_y[] = { 's','t','a','r','t','Y','\0'};
static const WCHAR reg_width[] = { 'w','i','d','t','h','\0'};
static const WCHAR reg_height[] = { 'h','e','i','g','h','t','\0'};
static const WCHAR reg_logfont[] = { 'l','o','g','f','o','n','t','\0'};

enum ENTRY_TYPE {
    ET_WINDOWS,
    ET_UNIX,
    ET_SHELL
};

typedef struct _Entry {
    struct _Entry*  next;
    struct _Entry*  down;
    struct _Entry*  up;

    BOOL            expanded;
    BOOL            scanned;
    int             level;

    WIN32_FIND_DATAW    data;

    BY_HANDLE_FILE_INFORMATION bhfi;
    BOOL            bhfi_valid;
    enum ENTRY_TYPE etype;
    LPITEMIDLIST    pidl;
    IShellFolder*   folder;
    HICON           hicon;
} Entry;

typedef struct {
    Entry   entry;
    WCHAR   path[MAX_PATH];
    WCHAR   volname[_MAX_FNAME];
    WCHAR   fs[_MAX_DIR];
    DWORD   drive_type;
    DWORD   fs_flags;
} Root;

enum COLUMN_FLAGS {
    COL_SIZE        = 0x01,
    COL_DATE        = 0x02,
    COL_TIME        = 0x04,
    COL_ATTRIBUTES  = 0x08,
    COL_DOSNAMES    = 0x10,
    COL_INDEX       = 0x20,
    COL_LINKS       = 0x40,
    COL_ALL = COL_SIZE|COL_DATE|COL_TIME|COL_ATTRIBUTES|COL_DOSNAMES|COL_INDEX|COL_LINKS
};

typedef enum {
    SORT_NAME,
    SORT_EXT,
    SORT_SIZE,
    SORT_DATE
} SORT_ORDER;

typedef struct {
    HWND    hwnd;
    HWND    hwndHeader;

#define COLUMNS 10
    int     widths[COLUMNS];
    int     positions[COLUMNS+1];

    BOOL    treePane;
    int     visible_cols;
    Entry*  root;
    Entry*  cur;
} Pane;

typedef struct {
    HWND    hwnd;
    Pane    left;
    Pane    right;
    int     focus_pane;     /* 0: left  1: right */
    WINDOWPLACEMENT pos;
    int     split_pos;
    BOOL    header_wdths_ok;

    WCHAR   path[MAX_PATH];
    WCHAR   filter_pattern[MAX_PATH];
    int     filter_flags;
    Root    root;

    SORT_ORDER sortOrder;
} ChildWnd;



static void read_directory(Entry* dir, LPCWSTR path, SORT_ORDER sortOrder, HWND hwnd);
static void set_curdir(ChildWnd* child, Entry* entry, int idx, HWND hwnd);
static void refresh_child(ChildWnd* child);
static void refresh_drives(void);
static void get_path(Entry* dir, PWSTR path);
static void format_date(const FILETIME* ft, WCHAR* buffer, int visible_cols);

static LRESULT CALLBACK FrameWndProc(HWND hwnd, UINT nmsg, WPARAM wparam, LPARAM lparam);
static LRESULT CALLBACK ChildWndProc(HWND hwnd, UINT nmsg, WPARAM wparam, LPARAM lparam);
static LRESULT CALLBACK TreeWndProc(HWND hwnd, UINT nmsg, WPARAM wparam, LPARAM lparam);


/* globals */
WINEFILE_GLOBALS Globals;

static int last_split;

/* some common string constants */
static const WCHAR sEmpty[] = {'\0'};
static const WCHAR sSpace[] = {' ', '\0'};
static const WCHAR sNumFmt[] = {'%','d','\0'};
static const WCHAR sQMarks[] = {'?','?','?','\0'};

/* window class names */
static const WCHAR sWINEFILEFRAME[] = {'W','F','S','_','F','r','a','m','e','\0'};
static const WCHAR sWINEFILETREE[] = {'W','F','S','_','T','r','e','e','\0'};

static void format_longlong(LPWSTR ret, ULONGLONG val)
{
    WCHAR buffer[65], *p = &buffer[64];

    *p = 0;
    do {
        *(--p) = '0' + val % 10;
    val /= 10;
    } while (val);
    lstrcpyW( ret, p );
}


/* load resource string */
static LPWSTR load_string(LPWSTR buffer, DWORD size, UINT id)
{
    LoadStringW(Globals.hInstance, id, buffer, size);
    return buffer;
}

#define RS(b, i) load_string(b, sizeof(b)/sizeof(b[0]), i)


/* display error message for the specified WIN32 error code */
static void display_error(HWND hwnd, DWORD error)
{
    WCHAR b1[BUFFER_LEN], b2[BUFFER_LEN];
    PWSTR msg;

    if (FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
        0, error, MAKELANGID(LANG_NEUTRAL,SUBLANG_DEFAULT), (PWSTR)&msg, 0, NULL))
        MessageBoxW(hwnd, msg, RS(b2,IDS_WINEFILE), MB_OK);
    else
        MessageBoxW(hwnd, RS(b1,IDS_ERROR), RS(b2,IDS_WINEFILE), MB_OK);

    LocalFree(msg);
}


/* display network error message using WNetGetLastErrorW() */
static void display_network_error(HWND hwnd)
{
    WCHAR msg[BUFFER_LEN], provider[BUFFER_LEN], b2[BUFFER_LEN];
    DWORD error;

    if (WNetGetLastErrorW(&error, msg, BUFFER_LEN, provider, BUFFER_LEN) == NO_ERROR)
        MessageBoxW(hwnd, msg, RS(b2,IDS_WINEFILE), MB_OK);
}

static inline BOOL get_check(HWND hwnd, INT id)
{
    return BST_CHECKED&SendMessageW(GetDlgItem(hwnd, id), BM_GETSTATE, 0, 0);
}

static inline INT set_check(HWND hwnd, INT id, BOOL on)
{
    return SendMessageW(GetDlgItem(hwnd, id), BM_SETCHECK, on?BST_CHECKED:BST_UNCHECKED, 0);
}

static inline void choose_font(HWND hwnd)
{
        WCHAR dlg_name[BUFFER_LEN], dlg_info[BUFFER_LEN];
        CHOOSEFONTW chFont;
        LOGFONTW lFont;

        HDC hdc = GetDC(hwnd);

        GetObjectW(Globals.hfont, sizeof(LOGFONTW), &lFont);

        chFont.lStructSize = sizeof(CHOOSEFONTW);
        chFont.hwndOwner = hwnd;
        chFont.hDC = NULL;
        chFont.lpLogFont = &lFont;
        chFont.Flags = CF_SCREENFONTS | CF_FORCEFONTEXIST | CF_LIMITSIZE | CF_NOSCRIPTSEL | CF_INITTOLOGFONTSTRUCT | CF_NOVERTFONTS;
        chFont.rgbColors = RGB(0,0,0);
        chFont.lCustData = 0;
        chFont.lpfnHook = NULL;
        chFont.lpTemplateName = NULL;
        chFont.hInstance = Globals.hInstance;
        chFont.lpszStyle = NULL;
        chFont.nFontType = SIMULATED_FONTTYPE;
        chFont.nSizeMin = 0;
        chFont.nSizeMax = 24;

        if (ChooseFontW(&chFont)) {
                HWND childWnd;
                HFONT hFontOld;

                DeleteObject(Globals.hfont);
                Globals.hfont = CreateFontIndirectW(&lFont);
                hFontOld = SelectObject(hdc, Globals.hfont);
                GetTextExtentPoint32W(hdc, sSpace, 1, &Globals.spaceSize);

                /* change font in all open child windows */
                for(childWnd=GetWindow(Globals.hmdiclient,GW_CHILD); childWnd; childWnd=GetNextWindow(childWnd,GW_HWNDNEXT)) {
                        ChildWnd* child = (ChildWnd*) GetWindowLongPtrW(childWnd, GWLP_USERDATA);
                        SendMessageW(child->left.hwnd, WM_SETFONT, (WPARAM)Globals.hfont, TRUE);
                        SendMessageW(child->right.hwnd, WM_SETFONT, (WPARAM)Globals.hfont, TRUE);
                        SendMessageW(child->left.hwnd, LB_SETITEMHEIGHT, 1, max(Globals.spaceSize.cy,IMAGE_HEIGHT+3));
                        SendMessageW(child->right.hwnd, LB_SETITEMHEIGHT, 1, max(Globals.spaceSize.cy,IMAGE_HEIGHT+3));
                        InvalidateRect(child->left.hwnd, NULL, TRUE);
                        InvalidateRect(child->right.hwnd, NULL, TRUE);
                }

                SelectObject(hdc, hFontOld);
        }
        else if (CommDlgExtendedError()) {
                LoadStringW(Globals.hInstance, IDS_FONT_SEL_DLG_NAME, dlg_name, BUFFER_LEN);
                LoadStringW(Globals.hInstance, IDS_FONT_SEL_ERROR, dlg_info, BUFFER_LEN);
                MessageBoxW(hwnd, dlg_info, dlg_name, MB_OK);
        }

        ReleaseDC(hwnd, hdc);
}


/* allocate and initialise a directory entry */
static Entry* alloc_entry(void)
{
    Entry* entry = HeapAlloc(GetProcessHeap(), 0, sizeof(Entry));

    entry->pidl = NULL;
    entry->folder = NULL;
    entry->hicon = 0;

    return entry;
}

/* free a directory entry */
static void free_entry(Entry* entry)
{
    if (entry->hicon && entry->hicon!=(HICON)-1)
        DestroyIcon(entry->hicon);

    if (entry->folder && entry->folder!=Globals.iDesktop)
        IShellFolder_Release(entry->folder);

    if (entry->pidl)
        IMalloc_Free(Globals.iMalloc, entry->pidl);

    HeapFree(GetProcessHeap(), 0, entry);
}

/* recursively free all child entries */
static void free_entries(Entry* dir)
{
    Entry *entry, *next=dir->down;

    if (next) {
        dir->down = 0;

        do {
            entry = next;
            next = entry->next;

            free_entries(entry);
            free_entry(entry);
        } while(next);
    }
}


static void read_directory_win(Entry* dir, LPCWSTR path)
{
    Entry* first_entry = NULL;
    Entry* last = NULL;
    Entry* entry;

    int level = dir->level + 1;
    WIN32_FIND_DATAW w32fd;
    HANDLE hFind;
    HANDLE hFile;

    WCHAR buffer[MAX_PATH], *p;
    for(p=buffer; *path; )
        *p++ = *path++;

    *p++ = '\\';
    p[0] = '*';
    p[1] = '\0';

    hFind = FindFirstFileW(buffer, &w32fd);

    if (hFind != INVALID_HANDLE_VALUE) {
        do {
            entry = alloc_entry();

            if (!first_entry)
                first_entry = entry;

            if (last)
                last->next = entry;

            memcpy(&entry->data, &w32fd, sizeof(WIN32_FIND_DATAW));
            entry->down = NULL;
            entry->up = dir;
            entry->expanded = FALSE;
            entry->scanned = FALSE;
            entry->level = level;
            entry->etype = ET_WINDOWS;
            entry->bhfi_valid = FALSE;

            lstrcpyW(p, entry->data.cFileName);

            hFile = CreateFileW(buffer, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
                                0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0);

            if (hFile != INVALID_HANDLE_VALUE) {
                if (GetFileInformationByHandle(hFile, &entry->bhfi))
                    entry->bhfi_valid = TRUE;

                CloseHandle(hFile);
            }

            last = entry;
        } while(FindNextFileW(hFind, &w32fd));

        if (last)
            last->next = NULL;

        FindClose(hFind);
    }

    dir->down = first_entry;
    dir->scanned = TRUE;
}


static Entry* find_entry_win(Entry* dir, LPCWSTR name)
{
    Entry* entry;

    for(entry=dir->down; entry; entry=entry->next) {
        LPCWSTR p = name;
        LPCWSTR q = entry->data.cFileName;

        do {
            if (!*p || *p == '\\' || *p == '/')
                return entry;
        } while(tolower(*p++) == tolower(*q++));

        p = name;
        q = entry->data.cAlternateFileName;

        do {
            if (!*p || *p == '\\' || *p == '/')
                return entry;
        } while(tolower(*p++) == tolower(*q++));
    }

    return 0;
}


static Entry* read_tree_win(Root* root, LPCWSTR path, SORT_ORDER sortOrder, HWND hwnd)
{
    WCHAR buffer[MAX_PATH];
    Entry* entry = &root->entry;
    LPCWSTR s = path;
    PWSTR d = buffer;

    HCURSOR old_cursor = SetCursor(LoadCursorW(0, (LPCWSTR)IDC_WAIT));

    entry->etype = ET_WINDOWS;
    while(entry) {
        while(*s && *s != '\\' && *s != '/')
            *d++ = *s++;

        while(*s == '\\' || *s == '/')
            s++;

        *d++ = '\\';
        *d = '\0';

        read_directory(entry, buffer, sortOrder, hwnd);

        if (entry->down)
            entry->expanded = TRUE;

        if (!*s)
            break;

        entry = find_entry_win(entry, s);
    }

    SetCursor(old_cursor);

    return entry;
}


#ifdef __WINE__

static BOOL time_to_filetime(time_t t, FILETIME* ftime)
{
    struct tm* tm = gmtime(&t);
    SYSTEMTIME stime;

    if (!tm)
        return FALSE;

    stime.wYear = tm->tm_year+1900;
    stime.wMonth = tm->tm_mon+1;
    /*  stime.wDayOfWeek */
    stime.wDay = tm->tm_mday;
    stime.wHour = tm->tm_hour;
    stime.wMinute = tm->tm_min;
    stime.wSecond = tm->tm_sec;
    stime.wMilliseconds = 0;

    return SystemTimeToFileTime(&stime, ftime);
}

static void read_directory_unix(Entry* dir, LPCWSTR path)
{
    Entry* first_entry = NULL;
    Entry* last = NULL;
    Entry* entry;
    DIR* pdir;

    int level = dir->level + 1;
    char cpath[MAX_PATH];

    WideCharToMultiByte(CP_UNIXCP, 0, path, -1, cpath, MAX_PATH, NULL, NULL);
    pdir = opendir(cpath);

    if (pdir) {
        struct stat st;
        struct dirent* ent;
        char buffer[MAX_PATH], *p;
        const char* s;

        for(p=buffer,s=cpath; *s; )
            *p++ = *s++;

        if (p==buffer || p[-1]!='/')
            *p++ = '/';

        while((ent=readdir(pdir))) {
            entry = alloc_entry();

            if (!first_entry)
                first_entry = entry;

            if (last)
                last->next = entry;

            entry->etype = ET_UNIX;

            strcpy(p, ent->d_name);
            MultiByteToWideChar(CP_UNIXCP, 0, p, -1, entry->data.cFileName, MAX_PATH);

            if (!stat(buffer, &st)) {
                entry->data.dwFileAttributes = p[0]=='.'? FILE_ATTRIBUTE_HIDDEN: 0;

                if (S_ISDIR(st.st_mode))
                    entry->data.dwFileAttributes |= FILE_ATTRIBUTE_DIRECTORY;

                entry->data.nFileSizeLow = st.st_size & 0xFFFFFFFF;
                entry->data.nFileSizeHigh = st.st_size >> 32;

                memset(&entry->data.ftCreationTime, 0, sizeof(FILETIME));
                time_to_filetime(st.st_atime, &entry->data.ftLastAccessTime);
                time_to_filetime(st.st_mtime, &entry->data.ftLastWriteTime);

                entry->bhfi.nFileIndexLow = ent->d_ino;
                entry->bhfi.nFileIndexHigh = 0;

                entry->bhfi.nNumberOfLinks = st.st_nlink;

                entry->bhfi_valid = TRUE;
            } else {
                entry->data.nFileSizeLow = 0;
                entry->data.nFileSizeHigh = 0;
                entry->bhfi_valid = FALSE;
            }

            entry->down = NULL;
            entry->up = dir;
            entry->expanded = FALSE;
            entry->scanned = FALSE;
            entry->level = level;

            last = entry;
        }

        if (last)
            last->next = NULL;

        closedir(pdir);
    }

    dir->down = first_entry;
    dir->scanned = TRUE;
}

static Entry* find_entry_unix(Entry* dir, LPCWSTR name)
{
    Entry* entry;

    for(entry=dir->down; entry; entry=entry->next) {
        LPCWSTR p = name;
        LPCWSTR q = entry->data.cFileName;

        do {
            if (!*p || *p == '/')
                return entry;
        } while(*p++ == *q++);
    }

    return 0;
}

static Entry* read_tree_unix(Root* root, LPCWSTR path, SORT_ORDER sortOrder, HWND hwnd)
{
    WCHAR buffer[MAX_PATH];
    Entry* entry = &root->entry;
    LPCWSTR s = path;
    PWSTR d = buffer;

    HCURSOR old_cursor = SetCursor(LoadCursorW(0, (LPCWSTR)IDC_WAIT));

    entry->etype = ET_UNIX;

    while(entry) {
        while(*s && *s != '/')
            *d++ = *s++;

        while(*s == '/')
            s++;

        *d++ = '/';
        *d = '\0';

        read_directory(entry, buffer, sortOrder, hwnd);

        if (entry->down)
            entry->expanded = TRUE;

        if (!*s)
            break;

        entry = find_entry_unix(entry, s);
    }

    SetCursor(old_cursor);

    return entry;
}

#endif /* __WINE__ */

static void free_strret(STRRET* str)
{
    if (str->uType == STRRET_WSTR)
        IMalloc_Free(Globals.iMalloc, str->UNION_MEMBER(pOleStr));
}

static LPWSTR wcscpyn(LPWSTR dest, LPCWSTR source, size_t count)
{
 LPCWSTR s;
 LPWSTR d = dest;

 for(s=source; count&&(*d++=*s++); )
  count--;

 return dest;
}

static void get_strretW(STRRET* str, const SHITEMID* shiid, LPWSTR buffer, int len)
{
 switch(str->uType) {
  case STRRET_WSTR:
    wcscpyn(buffer, str->UNION_MEMBER(pOleStr), len);
    break;

  case STRRET_OFFSET:
    MultiByteToWideChar(CP_ACP, 0, (LPCSTR)shiid+str->UNION_MEMBER(uOffset), -1, buffer, len);
    break;

  case STRRET_CSTR:
    MultiByteToWideChar(CP_ACP, 0, str->UNION_MEMBER(cStr), -1, buffer, len);
 }
}


static HRESULT name_from_pidl(IShellFolder* folder, LPITEMIDLIST pidl, LPWSTR buffer, int len, SHGDNF flags)
{
    STRRET str;

    HRESULT hr = IShellFolder_GetDisplayNameOf(folder, pidl, flags, &str);

    if (SUCCEEDED(hr)) {
        get_strretW(&str, &pidl->mkid, buffer, len);
        free_strret(&str);
    } else
        buffer[0] = '\0';

    return hr;
}


static HRESULT path_from_pidlW(IShellFolder* folder, LPITEMIDLIST pidl, LPWSTR buffer, int len)
{
    STRRET str;

     /* SHGDN_FORPARSING: get full path of id list */
    HRESULT hr = IShellFolder_GetDisplayNameOf(folder, pidl, SHGDN_FORPARSING, &str);

    if (SUCCEEDED(hr)) {
        get_strretW(&str, &pidl->mkid, buffer, len);
        free_strret(&str);
    } else
        buffer[0] = '\0';

    return hr;
}


 /* create an item id list from a file system path */

static LPITEMIDLIST get_path_pidl(LPWSTR path, HWND hwnd)
{
    LPITEMIDLIST pidl;
    HRESULT hr;
    ULONG len;
    LPWSTR buffer = path;

    hr = IShellFolder_ParseDisplayName(Globals.iDesktop, hwnd, NULL, buffer, &len, &pidl, NULL);
    if (FAILED(hr))
        return NULL;

    return pidl;
}


 /* convert an item id list from relative to absolute (=relative to the desktop) format */

static LPITEMIDLIST get_to_absolute_pidl(Entry* entry, HWND hwnd)
{
    if (entry->up && entry->up->etype==ET_SHELL) {
        LPITEMIDLIST idl = NULL;

        while (entry->up) {
            idl = ILCombine(ILClone(entry->pidl), idl);
            entry = entry->up;
        }

        return idl;
    } else if (entry->etype == ET_WINDOWS) {
        WCHAR path[MAX_PATH];

        get_path(entry, path);

        return get_path_pidl(path, hwnd);
    } else if (entry->pidl)
        return ILClone(entry->pidl);

    return NULL;
}


static HICON extract_icon(IShellFolder* folder, LPCITEMIDLIST pidl)
{
    IExtractIconW* pExtract;

    if (SUCCEEDED(IShellFolder_GetUIObjectOf(folder, 0, 1, (LPCITEMIDLIST*)&pidl, &IID_IExtractIconW, 0, (LPVOID*)&pExtract))) {
        WCHAR path[_MAX_PATH];
        unsigned flags;
        HICON hicon;
        int idx;

        if (SUCCEEDED(IExtractIconW_GetIconLocation(pExtract, GIL_FORSHELL, path, _MAX_PATH, &idx, &flags))) {
            if (!(flags & GIL_NOTFILENAME)) {
                if (idx == -1)
                    idx = 0;    /* special case for some control panel applications */

                if ((int)ExtractIconExW(path, idx, 0, &hicon, 1) > 0)
                    flags &= ~GIL_DONTCACHE;
            } else {
                HICON hIconLarge = 0;

                HRESULT hr = IExtractIconW_Extract(pExtract, path, idx, &hIconLarge, &hicon, MAKELONG(0/*GetSystemMetrics(SM_CXICON)*/,GetSystemMetrics(SM_CXSMICON)));

                if (SUCCEEDED(hr))
                    DestroyIcon(hIconLarge);
            }

            return hicon;
        }
    }

    return 0;
}


static Entry* find_entry_shell(Entry* dir, LPCITEMIDLIST pidl)
{
    Entry* entry;

    for(entry=dir->down; entry; entry=entry->next) {
        if (entry->pidl->mkid.cb == pidl->mkid.cb &&
            !memcmp(entry->pidl, pidl, entry->pidl->mkid.cb))
            return entry;
    }

    return 0;
}

static Entry* read_tree_shell(Root* root, LPITEMIDLIST pidl, SORT_ORDER sortOrder, HWND hwnd)
{
    Entry* entry = &root->entry;
    Entry* next;
    LPITEMIDLIST next_pidl = pidl;
    IShellFolder* folder;
    IShellFolder* child = NULL;
    HRESULT hr;

    HCURSOR old_cursor = SetCursor(LoadCursorW(0, (LPCWSTR)IDC_WAIT));

    entry->etype = ET_SHELL;
    folder = Globals.iDesktop;

    while(entry) {
        entry->pidl = next_pidl;
        entry->folder = folder;

        if (!pidl->mkid.cb)
            break;

         /* copy first element of item idlist */
        next_pidl = IMalloc_Alloc(Globals.iMalloc, pidl->mkid.cb+sizeof(USHORT));
        memcpy(next_pidl, pidl, pidl->mkid.cb);
        ((LPITEMIDLIST)((LPBYTE)next_pidl+pidl->mkid.cb))->mkid.cb = 0;

        hr = IShellFolder_BindToObject(folder, next_pidl, 0, &IID_IShellFolder, (void**)&child);
        if (FAILED(hr))
            break;

        read_directory(entry, NULL, sortOrder, hwnd);

        if (entry->down)
            entry->expanded = TRUE;

        next = find_entry_shell(entry, next_pidl);
        if (!next)
            break;

        folder = child;
        entry = next;

         /* go to next element */
        pidl = (LPITEMIDLIST) ((LPBYTE)pidl+pidl->mkid.cb);
    }

    SetCursor(old_cursor);

    return entry;
}


static void fill_w32fdata_shell(IShellFolder* folder, LPCITEMIDLIST pidl, SFGAOF attribs, WIN32_FIND_DATAW* w32fdata)
{
    if (!(attribs & SFGAO_FILESYSTEM) ||
            FAILED(SHGetDataFromIDListW(folder, pidl, SHGDFIL_FINDDATA, w32fdata, sizeof(WIN32_FIND_DATAW)))) {
        WIN32_FILE_ATTRIBUTE_DATA fad;
        IDataObject* pDataObj;

        STGMEDIUM medium = {0, {0}, 0};
        FORMATETC fmt = {Globals.cfStrFName, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};

        HRESULT hr = IShellFolder_GetUIObjectOf(folder, 0, 1, &pidl, &IID_IDataObject, 0, (LPVOID*)&pDataObj);

        if (SUCCEEDED(hr)) {
            hr = IDataObject_GetData(pDataObj, &fmt, &medium);

            IDataObject_Release(pDataObj);

            if (SUCCEEDED(hr)) {
                LPCWSTR path = GlobalLock(medium.UNION_MEMBER(hGlobal));
                UINT sem_org = SetErrorMode(SEM_FAILCRITICALERRORS);

                if (GetFileAttributesExW(path, GetFileExInfoStandard, &fad)) {
                    w32fdata->dwFileAttributes = fad.dwFileAttributes;
                    w32fdata->ftCreationTime = fad.ftCreationTime;
                    w32fdata->ftLastAccessTime = fad.ftLastAccessTime;
                    w32fdata->ftLastWriteTime = fad.ftLastWriteTime;

                    if (!(fad.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) {
                        w32fdata->nFileSizeLow = fad.nFileSizeLow;
                        w32fdata->nFileSizeHigh = fad.nFileSizeHigh;
                    }
                }

                SetErrorMode(sem_org);

                GlobalUnlock(medium.UNION_MEMBER(hGlobal));
                GlobalFree(medium.UNION_MEMBER(hGlobal));
            }
        }
    }

    if (attribs & (SFGAO_FOLDER|SFGAO_HASSUBFOLDER))
        w32fdata->dwFileAttributes |= FILE_ATTRIBUTE_DIRECTORY;

    if (attribs & SFGAO_READONLY)
        w32fdata->dwFileAttributes |= FILE_ATTRIBUTE_READONLY;

    if (attribs & SFGAO_COMPRESSED)
        w32fdata->dwFileAttributes |= FILE_ATTRIBUTE_COMPRESSED;
}


static void read_directory_shell(Entry* dir, HWND hwnd)
{
    IShellFolder* folder = dir->folder;
    int level = dir->level + 1;
    HRESULT hr;

    IShellFolder* child;
    IEnumIDList* idlist;

    Entry* first_entry = NULL;
    Entry* last = NULL;
    Entry* entry;

    if (!folder)
        return;

    hr = IShellFolder_EnumObjects(folder, hwnd, SHCONTF_FOLDERS|SHCONTF_NONFOLDERS|SHCONTF_INCLUDEHIDDEN|SHCONTF_SHAREABLE|SHCONTF_STORAGE, &idlist);

    if (SUCCEEDED(hr)) {
        for(;;) {
#define FETCH_ITEM_COUNT    32
            LPITEMIDLIST pidls[FETCH_ITEM_COUNT];
            SFGAOF attribs;
            ULONG cnt = 0;
            ULONG n;

            memset(pidls, 0, sizeof(pidls));

            hr = IEnumIDList_Next(idlist, FETCH_ITEM_COUNT, pidls, &cnt);
            if (FAILED(hr))
                break;

            if (hr == S_FALSE)
                break;

            for(n=0; n<cnt; ++n) {
                entry = alloc_entry();

                if (!first_entry)
                    first_entry = entry;

                if (last)
                    last->next = entry;

                memset(&entry->data, 0, sizeof(WIN32_FIND_DATAW));
                entry->bhfi_valid = FALSE;

                attribs = ~SFGAO_FILESYSTEM;    /*SFGAO_HASSUBFOLDER|SFGAO_FOLDER; SFGAO_FILESYSTEM sorgt dafür, daß "My Documents" anstatt von "Martin's Documents" angezeigt wird */

                hr = IShellFolder_GetAttributesOf(folder, 1, (LPCITEMIDLIST*)&pidls[n], &attribs);

                if (SUCCEEDED(hr)) {
                    if (attribs != (SFGAOF)~SFGAO_FILESYSTEM) {
                        fill_w32fdata_shell(folder, pidls[n], attribs, &entry->data);

                        entry->bhfi_valid = TRUE;
                    } else
                        attribs = 0;
                } else
                    attribs = 0;

                entry->pidl = pidls[n];

                if (entry->data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
                    hr = IShellFolder_BindToObject(folder, pidls[n], 0, &IID_IShellFolder, (void**)&child);

                    if (SUCCEEDED(hr))
                        entry->folder = child;
                    else
                        entry->folder = NULL;
                }
                else
                    entry->folder = NULL;

                if (!entry->data.cFileName[0])
                    /*hr = */name_from_pidl(folder, pidls[n], entry->data.cFileName, MAX_PATH, /*SHGDN_INFOLDER*/0x2000/*0x2000=SHGDN_INCLUDE_NONFILESYS*/);

                 /* get display icons for files and virtual objects */
                if (!(entry->data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ||
                    !(attribs & SFGAO_FILESYSTEM)) {
                    entry->hicon = extract_icon(folder, pidls[n]);

                    if (!entry->hicon)
                        entry->hicon = (HICON)-1;   /* don't try again later */
                }

                entry->down = NULL;
                entry->up = dir;
                entry->expanded = FALSE;
                entry->scanned = FALSE;
                entry->level = level;

                entry->etype = ET_SHELL;
                entry->bhfi_valid = FALSE;

                last = entry;
            }
        }

        IEnumIDList_Release(idlist);
    }

    if (last)
        last->next = NULL;

    dir->down = first_entry;
    dir->scanned = TRUE;
}

/* sort order for different directory/file types */
enum TYPE_ORDER {
    TO_DIR = 0,
    TO_DOT = 1,
    TO_DOTDOT = 2,
    TO_OTHER_DIR = 3,
    TO_FILE = 4
};

/* distinguish between ".", ".." and any other directory names */
static int TypeOrderFromDirname(LPCWSTR name)
{
    if (name[0] == '.') {
        if (name[1] == '\0')
            return TO_DOT;  /* "." */

        if (name[1]=='.' && name[2]=='\0')
            return TO_DOTDOT;   /* ".." */
    }

    return TO_OTHER_DIR;    /* anything else */
}

/* directories first... */
static int compareType(const WIN32_FIND_DATAW* fd1, const WIN32_FIND_DATAW* fd2)
{
    int order1 = fd1->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY? TO_DIR: TO_FILE;
    int order2 = fd2->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY? TO_DIR: TO_FILE;

    /* Handle "." and ".." as special case and move them at the very first beginning. */
    if (order1==TO_DIR && order2==TO_DIR) {
        order1 = TypeOrderFromDirname(fd1->cFileName);
        order2 = TypeOrderFromDirname(fd2->cFileName);
    }

    return order2==order1? 0: order1<order2? -1: 1;
}


static int compareName(const void* arg1, const void* arg2)
{
    const WIN32_FIND_DATAW* fd1 = &(*(const Entry* const*)arg1)->data;
    const WIN32_FIND_DATAW* fd2 = &(*(const Entry* const*)arg2)->data;

    int cmp = compareType(fd1, fd2);
    if (cmp)
        return cmp;

    return lstrcmpiW(fd1->cFileName, fd2->cFileName);
}

static int compareExt(const void* arg1, const void* arg2)
{
    const WIN32_FIND_DATAW* fd1 = &(*(const Entry* const*)arg1)->data;
    const WIN32_FIND_DATAW* fd2 = &(*(const Entry* const*)arg2)->data;
    const WCHAR *name1, *name2, *ext1, *ext2;

    int cmp = compareType(fd1, fd2);
    if (cmp)
        return cmp;

    name1 = fd1->cFileName;
    name2 = fd2->cFileName;

    ext1 = strrchrW(name1, '.');
    ext2 = strrchrW(name2, '.');

    if (ext1)
        ext1++;
    else
        ext1 = sEmpty;

    if (ext2)
        ext2++;
    else
        ext2 = sEmpty;

    cmp = lstrcmpiW(ext1, ext2);
    if (cmp)
        return cmp;

    return lstrcmpiW(name1, name2);
}

static int compareSize(const void* arg1, const void* arg2)
{
    const WIN32_FIND_DATAW* fd1 = &(*(const Entry* const*)arg1)->data;
    const WIN32_FIND_DATAW* fd2 = &(*(const Entry* const*)arg2)->data;

    int cmp = compareType(fd1, fd2);
    if (cmp)
        return cmp;

    cmp = fd2->nFileSizeHigh - fd1->nFileSizeHigh;

    if (cmp < 0)
        return -1;
    else if (cmp > 0)
        return 1;

    cmp = fd2->nFileSizeLow - fd1->nFileSizeLow;

    return cmp<0? -1: cmp>0? 1: 0;
}

static int compareDate(const void* arg1, const void* arg2)
{
    const WIN32_FIND_DATAW* fd1 = &(*(const Entry* const*)arg1)->data;
    const WIN32_FIND_DATAW* fd2 = &(*(const Entry* const*)arg2)->data;

    int cmp = compareType(fd1, fd2);
    if (cmp)
        return cmp;

    return CompareFileTime(&fd2->ftLastWriteTime, &fd1->ftLastWriteTime);
}


static int (*sortFunctions[])(const void* arg1, const void* arg2) = {
    compareName,    /* SORT_NAME */
    compareExt,     /* SORT_EXT */
    compareSize,    /* SORT_SIZE */
    compareDate     /* SORT_DATE */
};


static void SortDirectory(Entry* dir, SORT_ORDER sortOrder)
{
    Entry* entry;
    Entry** array, **p;
    int len;

    len = 0;
    for(entry=dir->down; entry; entry=entry->next)
        len++;

    if (len) {
        array = HeapAlloc(GetProcessHeap(), 0, len*sizeof(Entry*));

        p = array;
        for(entry=dir->down; entry; entry=entry->next)
            *p++ = entry;

        /* call qsort with the appropriate compare function */
        qsort(array, len, sizeof(array[0]), sortFunctions[sortOrder]);

        dir->down = array[0];

        for(p=array; --len; p++)
            p[0]->next = p[1];

        (*p)->next = 0;

                HeapFree(GetProcessHeap(), 0, array);
    }
}


static void read_directory(Entry* dir, LPCWSTR path, SORT_ORDER sortOrder, HWND hwnd)
{
    WCHAR buffer[MAX_PATH];
    Entry* entry;
    LPCWSTR s;
    PWSTR d;

    if (dir->etype == ET_SHELL)
    {
        read_directory_shell(dir, hwnd);

        if (Globals.prescan_node) {
            s = path;
            d = buffer;

            while(*s)
                *d++ = *s++;

            *d++ = '\\';

            for(entry=dir->down; entry; entry=entry->next)
                if (entry->data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
                    read_directory_shell(entry, hwnd);
                    SortDirectory(entry, sortOrder);
                }
        }
    }
    else
#ifdef __WINE__
    if (dir->etype == ET_UNIX)
    {
        read_directory_unix(dir, path);

        if (Globals.prescan_node) {
            s = path;
            d = buffer;

            while(*s)
                *d++ = *s++;

            *d++ = '/';

            for(entry=dir->down; entry; entry=entry->next)
                if (entry->data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
                    lstrcpyW(d, entry->data.cFileName);
                    read_directory_unix(entry, buffer);
                    SortDirectory(entry, sortOrder);
                }
        }
    }
    else
#endif
    {
        read_directory_win(dir, path);

        if (Globals.prescan_node) {
            s = path;
            d = buffer;

            while(*s)
                *d++ = *s++;

            *d++ = '\\';

            for(entry=dir->down; entry; entry=entry->next)
                if (entry->data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
                    lstrcpyW(d, entry->data.cFileName);
                    read_directory_win(entry, buffer);
                    SortDirectory(entry, sortOrder);
                }
        }
    }

    SortDirectory(dir, sortOrder);
}


static Entry* read_tree(Root* root, LPCWSTR path, LPITEMIDLIST pidl, LPWSTR drv, SORT_ORDER sortOrder, HWND hwnd)
{
#ifdef __WINE__
    static const WCHAR sSlash[] = {'/', '\0'};
#endif
    static const WCHAR sBackslash[] = {'\\', '\0'};

    if (pidl)
    {
         /* read shell namespace tree */
        root->drive_type = DRIVE_UNKNOWN;
        drv[0] = '\\';
        drv[1] = '\0';
        load_string(root->volname, sizeof(root->volname)/sizeof(root->volname[0]), IDS_DESKTOP);
        root->fs_flags = 0;
        load_string(root->fs, sizeof(root->fs)/sizeof(root->fs[0]), IDS_SHELL);

        return read_tree_shell(root, pidl, sortOrder, hwnd);
    }
    else
#ifdef __WINE__
    if (*path == '/')
    {
        /* read unix file system tree */
        root->drive_type = GetDriveTypeW(path);

        lstrcatW(drv, sSlash);
        load_string(root->volname, sizeof(root->volname)/sizeof(root->volname[0]), IDS_ROOT_FS);
        root->fs_flags = 0;
        load_string(root->fs, sizeof(root->fs)/sizeof(root->fs[0]), IDS_UNIXFS);

        lstrcpyW(root->path, sSlash);

        return read_tree_unix(root, path, sortOrder, hwnd);
    }
#endif

     /* read WIN32 file system tree */
       root->drive_type = GetDriveTypeW(path);

    lstrcatW(drv, sBackslash);
    GetVolumeInformationW(drv, root->volname, _MAX_FNAME, 0, 0, &root->fs_flags, root->fs, _MAX_DIR);

    lstrcpyW(root->path, drv);

    return read_tree_win(root, path, sortOrder, hwnd);
}


/* flags to filter different file types */
enum TYPE_FILTER {
    TF_DIRECTORIES  = 0x01,
    TF_PROGRAMS     = 0x02,
    TF_DOCUMENTS    = 0x04,
    TF_OTHERS       = 0x08,
    TF_HIDDEN       = 0x10,
    TF_ALL          = 0x1F
};


static ChildWnd* alloc_child_window(LPCWSTR path, LPITEMIDLIST pidl, HWND hwnd)
{
    WCHAR drv[_MAX_DRIVE+1], dir[_MAX_DIR], name[_MAX_FNAME], ext[_MAX_EXT];
    WCHAR dir_path[MAX_PATH];
    static const WCHAR sAsterics[] = {'*', '\0'};
    static const WCHAR sTitleFmt[] = {'%','s',' ','-',' ','%','s','\0'};

    ChildWnd* child = HeapAlloc(GetProcessHeap(), 0, sizeof(ChildWnd));
    Root* root = &child->root;
    Entry* entry;

    memset(child, 0, sizeof(ChildWnd));

    child->left.treePane = TRUE;
    child->left.visible_cols = 0;

    child->right.treePane = FALSE;
    child->right.visible_cols = COL_SIZE|COL_DATE|COL_TIME|COL_ATTRIBUTES|COL_INDEX|COL_LINKS;

    child->pos.length = sizeof(WINDOWPLACEMENT);
    child->pos.flags = 0;
    child->pos.showCmd = SW_SHOWNORMAL;
    child->pos.rcNormalPosition.left = CW_USEDEFAULT;
    child->pos.rcNormalPosition.top = CW_USEDEFAULT;
    child->pos.rcNormalPosition.right = CW_USEDEFAULT;
    child->pos.rcNormalPosition.bottom = CW_USEDEFAULT;

    child->focus_pane = 0;
    child->split_pos = DEFAULT_SPLIT_POS;
    child->sortOrder = SORT_NAME;
    child->header_wdths_ok = FALSE;

    if (path)
    {
        int pathlen = strlenW(path);
        const WCHAR *npath = path;

        if (path[0] == '"' && path[pathlen - 1] == '"')
        {
            npath++;
            pathlen--;
        }
        lstrcpynW(child->path, npath, pathlen + 1);
        
        _wsplitpath(child->path, drv, dir, name, ext);
    }

    lstrcpyW(child->filter_pattern, sAsterics);
    child->filter_flags = TF_ALL;

    root->entry.level = 0;

    lstrcpyW(dir_path, drv);
    lstrcatW(dir_path, dir);
    entry = read_tree(root, dir_path, pidl, drv, child->sortOrder, hwnd);

    if (root->entry.etype == ET_SHELL)
        load_string(root->entry.data.cFileName, sizeof(root->entry.data.cFileName)/sizeof(root->entry.data.cFileName[0]), IDS_DESKTOP);
    else
        wsprintfW(root->entry.data.cFileName, sTitleFmt, drv, root->fs);

    root->entry.data.dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY;

    child->left.root = &root->entry;
    child->right.root = NULL;

    set_curdir(child, entry, 0, hwnd);

    return child;
}


/* free all memory associated with a child window */
static void free_child_window(ChildWnd* child)
{
    free_entries(&child->root.entry);
    HeapFree(GetProcessHeap(), 0, child);
}


/* get full path of specified directory entry */
static void get_path(Entry* dir, PWSTR path)
{
    Entry* entry;
    int len = 0;
    int level = 0;

    if (dir->etype == ET_SHELL)
    {
        SFGAOF attribs;
        HRESULT hr = S_OK;

        path[0] = '\0';

        attribs = 0;

        if (dir->folder)
            hr = IShellFolder_GetAttributesOf(dir->folder, 1, (LPCITEMIDLIST*)&dir->pidl, &attribs);

        if (SUCCEEDED(hr) && (attribs&SFGAO_FILESYSTEM)) {
            IShellFolder* parent = dir->up? dir->up->folder: Globals.iDesktop;

            hr = path_from_pidlW(parent, dir->pidl, path, MAX_PATH);
        }
    }
    else
    {
        for(entry=dir; entry; level++) {
            LPCWSTR name;
            int l;

            {
                LPCWSTR s;
                name = entry->data.cFileName;
                s = name;

                for(l=0; *s && *s != '/' && *s != '\\'; s++)
                    l++;
            }

            if (entry->up) {
                if (l > 0) {
                    memmove(path+l+1, path, len*sizeof(WCHAR));
                    memcpy(path+1, name, l*sizeof(WCHAR));
                    len += l+1;

                    if (entry->etype == ET_UNIX)
                        path[0] = '/';
                    else
                                                path[0] = '\\';
                }

                entry = entry->up;
            } else {
                memmove(path+l, path, len*sizeof(WCHAR));
                memcpy(path, name, l*sizeof(WCHAR));
                len += l;
                break;
            }
        }

        if (!level) {
            if (entry->etype == ET_UNIX)
                path[len++] = '/';
            else
                path[len++] = '\\';
        }

        path[len] = '\0';
    }
}

static windowOptions load_registry_settings(void)
{
    DWORD size;
    DWORD type;
    HKEY hKey;
    windowOptions opts;
    LOGFONTW logfont;

        RegOpenKeyExW( HKEY_CURRENT_USER, registry_key,
                       0, KEY_QUERY_VALUE, &hKey );

    size = sizeof(DWORD);

        if( RegQueryValueExW( hKey, reg_start_x, NULL, &type,
                              (LPBYTE) &opts.start_x, &size ) != ERROR_SUCCESS )
        opts.start_x = CW_USEDEFAULT;

        if( RegQueryValueExW( hKey, reg_start_y, NULL, &type,
                              (LPBYTE) &opts.start_y, &size ) != ERROR_SUCCESS )
        opts.start_y = CW_USEDEFAULT;

        if( RegQueryValueExW( hKey, reg_width, NULL, &type,
                              (LPBYTE) &opts.width, &size ) != ERROR_SUCCESS )
        opts.width = CW_USEDEFAULT;

        if( RegQueryValueExW( hKey, reg_height, NULL, &type,
                              (LPBYTE) &opts.height, &size ) != ERROR_SUCCESS )
        opts.height = CW_USEDEFAULT;
    size=sizeof(logfont);
    if( RegQueryValueExW( hKey, reg_logfont, NULL, &type,
                              (LPBYTE) &logfont, &size ) != ERROR_SUCCESS )
        GetObjectW(GetStockObject(DEFAULT_GUI_FONT),sizeof(logfont),&logfont);

    RegCloseKey( hKey );

    Globals.hfont = CreateFontIndirectW(&logfont);
    return opts;
}

static void save_registry_settings(void)
{
    WINDOWINFO wi;
    HKEY hKey;
    INT width, height;
    LOGFONTW logfont;

    wi.cbSize = sizeof( WINDOWINFO );
    GetWindowInfo(Globals.hMainWnd, &wi);
    width = wi.rcWindow.right - wi.rcWindow.left;
    height = wi.rcWindow.bottom - wi.rcWindow.top;

    if ( RegOpenKeyExW( HKEY_CURRENT_USER, registry_key,
                            0, KEY_SET_VALUE, &hKey ) != ERROR_SUCCESS )
    {
        /* Unable to save registry settings - try to create key */
                if ( RegCreateKeyExW( HKEY_CURRENT_USER, registry_key,
                                      0, NULL, REG_OPTION_NON_VOLATILE,
                                      KEY_SET_VALUE, NULL, &hKey, NULL ) != ERROR_SUCCESS )
        {
            /* FIXME: Cannot create key */
            return;
        }
    }
    /* Save all of the settings */
        RegSetValueExW( hKey, reg_start_x, 0, REG_DWORD,
                        (LPBYTE) &wi.rcWindow.left, sizeof(DWORD) );
        RegSetValueExW( hKey, reg_start_y, 0, REG_DWORD,
                        (LPBYTE) &wi.rcWindow.top, sizeof(DWORD) );
        RegSetValueExW( hKey, reg_width, 0, REG_DWORD,
                        (LPBYTE) &width, sizeof(DWORD) );
        RegSetValueExW( hKey, reg_height, 0, REG_DWORD,
                        (LPBYTE) &height, sizeof(DWORD) );
        GetObjectW(Globals.hfont, sizeof(logfont), &logfont);
        RegSetValueExW( hKey, reg_logfont, 0, REG_BINARY,
                        (LPBYTE)&logfont, sizeof(LOGFONTW) );

    /* TODO: Save more settings here (List vs. Detailed View, etc.) */
    RegCloseKey( hKey );
}

static void resize_frame_rect(HWND hwnd, PRECT prect)
{
    int new_top;
    RECT rt;

    if (IsWindowVisible(Globals.htoolbar)) {
        SendMessageW(Globals.htoolbar, WM_SIZE, 0, 0);
        GetClientRect(Globals.htoolbar, &rt);
        prect->top = rt.bottom+3;
        prect->bottom -= rt.bottom+3;
    }

    if (IsWindowVisible(Globals.hdrivebar)) {
        SendMessageW(Globals.hdrivebar, WM_SIZE, 0, 0);
        GetClientRect(Globals.hdrivebar, &rt);
        new_top = --prect->top + rt.bottom+3;
        MoveWindow(Globals.hdrivebar, 0, prect->top, rt.right, new_top, TRUE);
        prect->top = new_top;
        prect->bottom -= rt.bottom+2;
    }

    if (IsWindowVisible(Globals.hstatusbar)) {
        int parts[] = {300, 500};

        SendMessageW(Globals.hstatusbar, WM_SIZE, 0, 0);
        SendMessageW(Globals.hstatusbar, SB_SETPARTS, 2, (LPARAM)&parts);
        GetClientRect(Globals.hstatusbar, &rt);
        prect->bottom -= rt.bottom;
    }

    MoveWindow(Globals.hmdiclient, prect->left-1,prect->top-1,prect->right+2,prect->bottom+1, TRUE);
}

static void resize_frame(HWND hwnd, int cx, int cy)
{
    RECT rect;

    rect.left   = 0;
    rect.top    = 0;
    rect.right  = cx;
    rect.bottom = cy;

    resize_frame_rect(hwnd, &rect);
}

static void resize_frame_client(HWND hwnd)
{
    RECT rect;

    GetClientRect(hwnd, &rect);

    resize_frame_rect(hwnd, &rect);
}


static HHOOK hcbthook;
static ChildWnd* newchild = NULL;

static LRESULT CALLBACK CBTProc(int code, WPARAM wparam, LPARAM lparam)
{
    if (code==HCBT_CREATEWND && newchild) {
        ChildWnd* child = newchild;
        newchild = NULL;

        child->hwnd = (HWND) wparam;
        SetWindowLongPtrW(child->hwnd, GWLP_USERDATA, (LPARAM)child);
    }

    return CallNextHookEx(hcbthook, code, wparam, lparam);
}

static HWND create_child_window(ChildWnd* child)
{
    MDICREATESTRUCTW mcs;
    int idx;

    mcs.szClass = sWINEFILETREE;
    mcs.szTitle = child->path;
    mcs.hOwner  = Globals.hInstance;
    mcs.x       = child->pos.rcNormalPosition.left;
    mcs.y       = child->pos.rcNormalPosition.top;
    mcs.cx      = child->pos.rcNormalPosition.right-child->pos.rcNormalPosition.left;
    mcs.cy      = child->pos.rcNormalPosition.bottom-child->pos.rcNormalPosition.top;
    mcs.style   = 0;
    mcs.lParam  = 0;

    hcbthook = SetWindowsHookExW(WH_CBT, CBTProc, 0, GetCurrentThreadId());

    newchild = child;
    child->hwnd = (HWND)SendMessageW(Globals.hmdiclient, WM_MDICREATE, 0, (LPARAM)&mcs);
    if (!child->hwnd) {
        UnhookWindowsHookEx(hcbthook);
        return 0;
    }

    UnhookWindowsHookEx(hcbthook);

    SendMessageW(child->left.hwnd, LB_SETITEMHEIGHT, 1, max(Globals.spaceSize.cy,IMAGE_HEIGHT+3));
    SendMessageW(child->right.hwnd, LB_SETITEMHEIGHT, 1, max(Globals.spaceSize.cy,IMAGE_HEIGHT+3));

    idx = SendMessageW(child->left.hwnd, LB_FINDSTRING, 0, (LPARAM)child->left.cur);
    SendMessageW(child->left.hwnd, LB_SETCURSEL, idx, 0);

    return child->hwnd;
}

#define RFF_NODEFAULT       0x02    /* No default item selected. */

static void WineFile_OnRun( HWND hwnd )
{
    static const WCHAR shell32_dll[] = {'S','H','E','L','L','3','2','.','D','L','L',0};
        void (WINAPI *pRunFileDlgAW )(HWND, HICON, LPWSTR, LPWSTR, LPWSTR, DWORD);
    HMODULE hshell = GetModuleHandleW( shell32_dll );

    pRunFileDlgAW = (void*)GetProcAddress(hshell, (LPCSTR)61);
    if (pRunFileDlgAW) pRunFileDlgAW( hwnd, 0, NULL, NULL, NULL, RFF_NODEFAULT);
}

static INT_PTR CALLBACK DestinationDlgProc(HWND hwnd, UINT nmsg, WPARAM wparam, LPARAM lparam)
{
    WCHAR b1[BUFFER_LEN], b2[BUFFER_LEN];

    switch(nmsg) {
        case WM_INITDIALOG:
            SetWindowLongPtrW(hwnd, GWLP_USERDATA, lparam);
            SetWindowTextW(GetDlgItem(hwnd, 201), (LPCWSTR)lparam);
            return 1;

        case WM_COMMAND: {
            int id = (int)wparam;

            switch(id) {
              case IDOK: {
                LPWSTR dest = (LPWSTR)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
                GetWindowTextW(GetDlgItem(hwnd, 201), dest, MAX_PATH);
                EndDialog(hwnd, id);
                break;}

              case IDCANCEL:
                EndDialog(hwnd, id);
                break;

              case 254:
                MessageBoxW(hwnd, RS(b1,IDS_NO_IMPL), RS(b2,IDS_WINEFILE), MB_OK);
                break;
            }

            return 1;
        }
    }

    return 0;
}


struct FilterDialog {
    WCHAR   pattern[MAX_PATH];
    int     flags;
};

static INT_PTR CALLBACK FilterDialogDlgProc(HWND hwnd, UINT nmsg, WPARAM wparam, LPARAM lparam)
{
    static struct FilterDialog* dlg;

    switch(nmsg) {
        case WM_INITDIALOG:
            dlg = (struct FilterDialog*) lparam;
            SetWindowTextW(GetDlgItem(hwnd, IDC_VIEW_PATTERN), dlg->pattern);
            set_check(hwnd, IDC_VIEW_TYPE_DIRECTORIES, dlg->flags&TF_DIRECTORIES);
            set_check(hwnd, IDC_VIEW_TYPE_PROGRAMS, dlg->flags&TF_PROGRAMS);
            set_check(hwnd, IDC_VIEW_TYPE_DOCUMENTS, dlg->flags&TF_DOCUMENTS);
            set_check(hwnd, IDC_VIEW_TYPE_OTHERS, dlg->flags&TF_OTHERS);
            set_check(hwnd, IDC_VIEW_TYPE_HIDDEN, dlg->flags&TF_HIDDEN);
            return 1;

        case WM_COMMAND: {
            int id = (int)wparam;

            if (id == IDOK) {
                int flags = 0;

                GetWindowTextW(GetDlgItem(hwnd, IDC_VIEW_PATTERN), dlg->pattern, MAX_PATH);

                flags |= get_check(hwnd, IDC_VIEW_TYPE_DIRECTORIES) ? TF_DIRECTORIES : 0;
                flags |= get_check(hwnd, IDC_VIEW_TYPE_PROGRAMS) ? TF_PROGRAMS : 0;
                flags |= get_check(hwnd, IDC_VIEW_TYPE_DOCUMENTS) ? TF_DOCUMENTS : 0;
                flags |= get_check(hwnd, IDC_VIEW_TYPE_OTHERS) ? TF_OTHERS : 0;
                flags |= get_check(hwnd, IDC_VIEW_TYPE_HIDDEN) ? TF_HIDDEN : 0;

                dlg->flags = flags;

                EndDialog(hwnd, id);
            } else if (id == IDCANCEL)
                EndDialog(hwnd, id);

            return 1;}
    }

    return 0;
}


struct PropertiesDialog {
    WCHAR   path[MAX_PATH];
    Entry   entry;
    void*   pVersionData;
};

/* Structure used to store enumerated languages and code pages. */
struct LANGANDCODEPAGE {
    WORD wLanguage;
    WORD wCodePage;
} *lpTranslate;

static LPCSTR InfoStrings[] = {
    "Comments",
    "CompanyName",
    "FileDescription",
    "FileVersion",
    "InternalName",
    "LegalCopyright",
    "LegalTrademarks",
    "OriginalFilename",
    "PrivateBuild",
    "ProductName",
    "ProductVersion",
    "SpecialBuild",
    NULL
};

static void PropDlg_DisplayValue(HWND hlbox, HWND hedit)
{
    int idx = SendMessageW(hlbox, LB_GETCURSEL, 0, 0);

    if (idx != LB_ERR) {
        LPCWSTR pValue = (LPCWSTR)SendMessageW(hlbox, LB_GETITEMDATA, idx, 0);

        if (pValue)
            SetWindowTextW(hedit, pValue);
    }
}

static void CheckForFileInfo(struct PropertiesDialog* dlg, HWND hwnd, LPCWSTR strFilename)
{
    static const WCHAR sBackSlash[] = {'\\','\0'};
    static const WCHAR sTranslation[] = {'\\','V','a','r','F','i','l','e','I','n','f','o','\\','T','r','a','n','s','l','a','t','i','o','n','\0'};
    static const WCHAR sStringFileInfo[] = {'\\','S','t','r','i','n','g','F','i','l','e','I','n','f','o','\\',
                                        '%','0','4','x','%','0','4','x','\\','%','s','\0'};
        static const WCHAR sFmt[] = {'%','d','.','%','d','.','%','d','.','%','d','\0'};
    DWORD dwVersionDataLen = GetFileVersionInfoSizeW(strFilename, NULL);

    if (dwVersionDataLen) {
        dlg->pVersionData = HeapAlloc(GetProcessHeap(), 0, dwVersionDataLen);

        if (GetFileVersionInfoW(strFilename, 0, dwVersionDataLen, dlg->pVersionData)) {
            LPVOID pVal;
            UINT nValLen;

            if (VerQueryValueW(dlg->pVersionData, sBackSlash, &pVal, &nValLen)) {
                if (nValLen == sizeof(VS_FIXEDFILEINFO)) {
                    VS_FIXEDFILEINFO* pFixedFileInfo = (VS_FIXEDFILEINFO*)pVal;
                                        WCHAR buffer[BUFFER_LEN];

                                        sprintfW(buffer, sFmt,
                                                 HIWORD(pFixedFileInfo->dwFileVersionMS), LOWORD(pFixedFileInfo->dwFileVersionMS),
                                                 HIWORD(pFixedFileInfo->dwFileVersionLS), LOWORD(pFixedFileInfo->dwFileVersionLS));

                                        SetDlgItemTextW(hwnd, IDC_STATIC_PROP_VERSION, buffer);
                }
            }

            /* Read the list of languages and code pages. */
            if (VerQueryValueW(dlg->pVersionData, sTranslation, &pVal, &nValLen)) {
                struct LANGANDCODEPAGE* pTranslate = (struct LANGANDCODEPAGE*)pVal;
                struct LANGANDCODEPAGE* pEnd = (struct LANGANDCODEPAGE*)((LPBYTE)pVal+nValLen);

                HWND hlbox = GetDlgItem(hwnd, IDC_LIST_PROP_VERSION_TYPES);

                /* Read the file description for each language and code page. */
                for(; pTranslate<pEnd; ++pTranslate) {
                    LPCSTR* p;

                    for(p=InfoStrings; *p; ++p) {
                        WCHAR subblock[200];
                        WCHAR infoStr[100];
                        LPCWSTR pTxt;
                        UINT nValLen;

                        LPCSTR pInfoString = *p;
                        MultiByteToWideChar(CP_ACP, 0, pInfoString, -1, infoStr, 100);
                        wsprintfW(subblock, sStringFileInfo, pTranslate->wLanguage, pTranslate->wCodePage, infoStr);

                        /* Retrieve file description for language and code page */
                        if (VerQueryValueW(dlg->pVersionData, subblock, (PVOID)&pTxt, &nValLen)) {
                            int idx = SendMessageW(hlbox, LB_ADDSTRING, 0L, (LPARAM)infoStr);
                            SendMessageW(hlbox, LB_SETITEMDATA, idx, (LPARAM)pTxt);
                        }
                    }
                }

                SendMessageW(hlbox, LB_SETCURSEL, 0, 0);

                PropDlg_DisplayValue(hlbox, GetDlgItem(hwnd,IDC_LIST_PROP_VERSION_VALUES));
            }
        }
    }
}

static INT_PTR CALLBACK PropertiesDialogDlgProc(HWND hwnd, UINT nmsg, WPARAM wparam, LPARAM lparam)
{
    static struct PropertiesDialog* dlg;

    switch(nmsg) {
        case WM_INITDIALOG: {
            static const WCHAR sByteFmt[] = {'%','s',' ','B','y','t','e','s','\0'};
            WCHAR b1[BUFFER_LEN], b2[BUFFER_LEN];
            LPWIN32_FIND_DATAW pWFD;

            dlg = (struct PropertiesDialog*) lparam;
            pWFD = (LPWIN32_FIND_DATAW)&dlg->entry.data;

            GetWindowTextW(hwnd, b1, MAX_PATH);
            wsprintfW(b2, b1, pWFD->cFileName);
            SetWindowTextW(hwnd, b2);

            format_date(&pWFD->ftLastWriteTime, b1, COL_DATE|COL_TIME);
            SetWindowTextW(GetDlgItem(hwnd, IDC_STATIC_PROP_LASTCHANGE), b1);

                        format_longlong( b1, ((ULONGLONG)pWFD->nFileSizeHigh << 32) | pWFD->nFileSizeLow );
            wsprintfW(b2, sByteFmt, b1);
            SetWindowTextW(GetDlgItem(hwnd, IDC_STATIC_PROP_SIZE), b2);

            SetWindowTextW(GetDlgItem(hwnd, IDC_STATIC_PROP_FILENAME), pWFD->cFileName);
            SetWindowTextW(GetDlgItem(hwnd, IDC_STATIC_PROP_PATH), dlg->path);

            set_check(hwnd, IDC_CHECK_READONLY, pWFD->dwFileAttributes&FILE_ATTRIBUTE_READONLY);
            set_check(hwnd, IDC_CHECK_ARCHIVE, pWFD->dwFileAttributes&FILE_ATTRIBUTE_ARCHIVE);
            set_check(hwnd, IDC_CHECK_COMPRESSED, pWFD->dwFileAttributes&FILE_ATTRIBUTE_COMPRESSED);
            set_check(hwnd, IDC_CHECK_HIDDEN, pWFD->dwFileAttributes&FILE_ATTRIBUTE_HIDDEN);
            set_check(hwnd, IDC_CHECK_SYSTEM, pWFD->dwFileAttributes&FILE_ATTRIBUTE_SYSTEM);

            CheckForFileInfo(dlg, hwnd, dlg->path);
            return 1;}

        case WM_COMMAND: {
            int id = (int)wparam;

            switch(HIWORD(wparam)) {
              case LBN_SELCHANGE: {
                HWND hlbox = GetDlgItem(hwnd, IDC_LIST_PROP_VERSION_TYPES);
                PropDlg_DisplayValue(hlbox, GetDlgItem(hwnd,IDC_LIST_PROP_VERSION_VALUES));
                break;
              }

              case BN_CLICKED:
                if (id==IDOK || id==IDCANCEL)
                    EndDialog(hwnd, id);
            }

            return 1;}

        case WM_NCDESTROY:
            HeapFree(GetProcessHeap(), 0, dlg->pVersionData);
            dlg->pVersionData = NULL;
            break;
    }

    return 0;
}

static void show_properties_dlg(Entry* entry, HWND hwnd)
{
    struct PropertiesDialog dlg;

    memset(&dlg, 0, sizeof(struct PropertiesDialog));
    get_path(entry, dlg.path);
    memcpy(&dlg.entry, entry, sizeof(Entry));

    DialogBoxParamW(Globals.hInstance, MAKEINTRESOURCEW(IDD_DIALOG_PROPERTIES), hwnd, PropertiesDialogDlgProc, (LPARAM)&dlg);
}

static struct FullScreenParameters {
    BOOL    mode;
    RECT    orgPos;
    BOOL    wasZoomed;
} g_fullscreen = {
    FALSE,  /* mode */
    {0, 0, 0, 0},
    FALSE
};

static void frame_get_clientspace(HWND hwnd, PRECT prect)
{
    RECT rt;

    if (!IsIconic(hwnd))
        GetClientRect(hwnd, prect);
    else {
        WINDOWPLACEMENT wp;

        GetWindowPlacement(hwnd, &wp);

        prect->left = prect->top = 0;
        prect->right = wp.rcNormalPosition.right-wp.rcNormalPosition.left-
                        2*(GetSystemMetrics(SM_CXSIZEFRAME)+GetSystemMetrics(SM_CXEDGE));
        prect->bottom = wp.rcNormalPosition.bottom-wp.rcNormalPosition.top-
                        2*(GetSystemMetrics(SM_CYSIZEFRAME)+GetSystemMetrics(SM_CYEDGE))-
                        GetSystemMetrics(SM_CYCAPTION)-GetSystemMetrics(SM_CYMENUSIZE);
    }

    if (IsWindowVisible(Globals.htoolbar)) {
        GetClientRect(Globals.htoolbar, &rt);
        prect->top += rt.bottom+2;
    }

    if (IsWindowVisible(Globals.hdrivebar)) {
        GetClientRect(Globals.hdrivebar, &rt);
        prect->top += rt.bottom+2;
    }

    if (IsWindowVisible(Globals.hstatusbar)) {
        GetClientRect(Globals.hstatusbar, &rt);
        prect->bottom -= rt.bottom;
    }
}

static BOOL toggle_fullscreen(HWND hwnd)
{
    RECT rt;

    if ((g_fullscreen.mode=!g_fullscreen.mode)) {
        GetWindowRect(hwnd, &g_fullscreen.orgPos);
        g_fullscreen.wasZoomed = IsZoomed(hwnd);

        Frame_CalcFrameClient(hwnd, &rt);
                MapWindowPoints( hwnd, 0, (POINT *)&rt, 2 );

        rt.left = g_fullscreen.orgPos.left-rt.left;
        rt.top = g_fullscreen.orgPos.top-rt.top;
        rt.right = GetSystemMetrics(SM_CXSCREEN)+g_fullscreen.orgPos.right-rt.right;
        rt.bottom = GetSystemMetrics(SM_CYSCREEN)+g_fullscreen.orgPos.bottom-rt.bottom;

        MoveWindow(hwnd, rt.left, rt.top, rt.right-rt.left, rt.bottom-rt.top, TRUE);
    } else {
        MoveWindow(hwnd, g_fullscreen.orgPos.left, g_fullscreen.orgPos.top,
                            g_fullscreen.orgPos.right-g_fullscreen.orgPos.left,
                            g_fullscreen.orgPos.bottom-g_fullscreen.orgPos.top, TRUE);

        if (g_fullscreen.wasZoomed)
            ShowWindow(hwnd, WS_MAXIMIZE);
    }

    return g_fullscreen.mode;
}

static void fullscreen_move(HWND hwnd)
{
    RECT rt, pos;
    GetWindowRect(hwnd, &pos);

    Frame_CalcFrameClient(hwnd, &rt);
        MapWindowPoints( hwnd, 0, (POINT *)&rt, 2 );

    rt.left = pos.left-rt.left;
    rt.top = pos.top-rt.top;
    rt.right = GetSystemMetrics(SM_CXSCREEN)+pos.right-rt.right;
    rt.bottom = GetSystemMetrics(SM_CYSCREEN)+pos.bottom-rt.bottom;

    MoveWindow(hwnd, rt.left, rt.top, rt.right-rt.left, rt.bottom-rt.top, TRUE);
}

static void toggle_child(HWND hwnd, UINT cmd, HWND hchild)
{
    BOOL vis = IsWindowVisible(hchild);

    CheckMenuItem(Globals.hMenuOptions, cmd, vis?MF_BYCOMMAND:MF_BYCOMMAND|MF_CHECKED);

    ShowWindow(hchild, vis?SW_HIDE:SW_SHOW);

    if (g_fullscreen.mode)
        fullscreen_move(hwnd);

    resize_frame_client(hwnd);
}

static BOOL activate_drive_window(LPCWSTR path)
{
    WCHAR drv1[_MAX_DRIVE], drv2[_MAX_DRIVE];
    HWND child_wnd;

    _wsplitpath(path, drv1, 0, 0, 0);

        /* search for an already open window for the same drive */
    for(child_wnd=GetNextWindow(Globals.hmdiclient,GW_CHILD); child_wnd; child_wnd=GetNextWindow(child_wnd, GW_HWNDNEXT)) {
        ChildWnd* child = (ChildWnd*)GetWindowLongPtrW(child_wnd, GWLP_USERDATA);

        if (child) {
            _wsplitpath(child->root.path, drv2, 0, 0, 0);

            if (!lstrcmpiW(drv2, drv1)) {
                SendMessageW(Globals.hmdiclient, WM_MDIACTIVATE, (WPARAM)child_wnd, 0);

                if (IsIconic(child_wnd))
                    ShowWindow(child_wnd, SW_SHOWNORMAL);

                return TRUE;
            }
        }
    }

    return FALSE;
}

static BOOL activate_fs_window(LPCWSTR filesys)
{
    HWND child_wnd;

        /* search for an already open window of the given file system name */
    for(child_wnd=GetNextWindow(Globals.hmdiclient,GW_CHILD); child_wnd; child_wnd=GetNextWindow(child_wnd, GW_HWNDNEXT)) {
        ChildWnd* child = (ChildWnd*) GetWindowLongPtrW(child_wnd, GWLP_USERDATA);

        if (child) {
            if (!lstrcmpiW(child->root.fs, filesys)) {
                SendMessageW(Globals.hmdiclient, WM_MDIACTIVATE, (WPARAM)child_wnd, 0);

                if (IsIconic(child_wnd))
                    ShowWindow(child_wnd, SW_SHOWNORMAL);

                return TRUE;
            }
        }
    }

    return FALSE;
}

static LRESULT CALLBACK FrameWndProc(HWND hwnd, UINT nmsg, WPARAM wparam, LPARAM lparam)
{
    WCHAR b1[BUFFER_LEN], b2[BUFFER_LEN];

    switch(nmsg) {
        case WM_CLOSE:
            if (Globals.saveSettings)
                save_registry_settings();

            DestroyWindow(hwnd);

             /* clear handle variables */
            Globals.hMenuFrame = 0;
            Globals.hMenuView = 0;
            Globals.hMenuOptions = 0;
            Globals.hMainWnd = 0;
            Globals.hmdiclient = 0;
            Globals.hdrivebar = 0;
            break;

        case WM_DESTROY:
            PostQuitMessage(0);
            break;

        case WM_INITMENUPOPUP: {
            HWND hwndClient = (HWND)SendMessageW(Globals.hmdiclient, WM_MDIGETACTIVE, 0, 0);

            if (!SendMessageW(hwndClient, WM_INITMENUPOPUP, wparam, lparam))
                return 0;
            break;}

        case WM_COMMAND: {
            UINT cmd = LOWORD(wparam);
            HWND hwndClient = (HWND)SendMessageW(Globals.hmdiclient, WM_MDIGETACTIVE, 0, 0);

            if (SendMessageW(hwndClient, WM_DISPATCH_COMMAND, wparam, lparam))
                break;

            if (cmd>=ID_DRIVE_FIRST && cmd<=ID_DRIVE_FIRST+0xFF) {
                WCHAR drv[_MAX_DRIVE], path[MAX_PATH];
                ChildWnd* child;
                LPCWSTR root = Globals.drives;
                int i;

                for(i=cmd-ID_DRIVE_FIRST; i--; root++)
                    while(*root)
                        root++;

                if (activate_drive_window(root))
                    return 0;

                _wsplitpath(root, drv, 0, 0, 0);

                if (!SetCurrentDirectoryW(drv)) {
                    display_error(hwnd, GetLastError());
                    return 0;
                }

                GetCurrentDirectoryW(MAX_PATH, path); /*TODO: store last directory per drive */
                child = alloc_child_window(path, NULL, hwnd);

                if (!create_child_window(child))
                    HeapFree(GetProcessHeap(), 0, child);
            } else switch(cmd) {
                case ID_FILE_EXIT:
                    SendMessageW(hwnd, WM_CLOSE, 0, 0);
                    break;

                case ID_WINDOW_NEW: {
                    WCHAR path[MAX_PATH];
                    ChildWnd* child;

                    GetCurrentDirectoryW(MAX_PATH, path);
                    child = alloc_child_window(path, NULL, hwnd);

                    if (!create_child_window(child))
                        HeapFree(GetProcessHeap(), 0, child);
                    break;}

                case ID_REFRESH:
                    refresh_drives();
                    break;

                case ID_WINDOW_CASCADE:
                    SendMessageW(Globals.hmdiclient, WM_MDICASCADE, 0, 0);
                    break;

                case ID_WINDOW_TILE_HORZ:
                    SendMessageW(Globals.hmdiclient, WM_MDITILE, MDITILE_HORIZONTAL, 0);
                    break;

                case ID_WINDOW_TILE_VERT:
                    SendMessageW(Globals.hmdiclient, WM_MDITILE, MDITILE_VERTICAL, 0);
                    break;

                case ID_WINDOW_ARRANGE:
                    SendMessageW(Globals.hmdiclient, WM_MDIICONARRANGE, 0, 0);
                    break;

                case ID_SELECT_FONT:
                                        choose_font(hwnd);
                                        break;

                case ID_VIEW_TOOL_BAR:
                    toggle_child(hwnd, cmd, Globals.htoolbar);
                    break;

                case ID_VIEW_DRIVE_BAR:
                    toggle_child(hwnd, cmd, Globals.hdrivebar);
                    break;

                case ID_VIEW_STATUSBAR:
                    toggle_child(hwnd, cmd, Globals.hstatusbar);
                    break;

                case ID_VIEW_SAVESETTINGS:
                    Globals.saveSettings = !Globals.saveSettings;
                    CheckMenuItem(Globals.hMenuOptions, ID_VIEW_SAVESETTINGS,
                                                      Globals.saveSettings ? MF_CHECKED : MF_UNCHECKED );
                    break;

                case ID_RUN:
                    WineFile_OnRun( hwnd );
                    break;

                case ID_CONNECT_NETWORK_DRIVE: {
                    DWORD ret = WNetConnectionDialog(hwnd, RESOURCETYPE_DISK);
                    if (ret == NO_ERROR)
                        refresh_drives();
                    else if (ret != (DWORD)-1) {
                        if (ret == ERROR_EXTENDED_ERROR)
                            display_network_error(hwnd);
                        else
                            display_error(hwnd, ret);
                    }
                    break;}

                case ID_DISCONNECT_NETWORK_DRIVE: {
                    DWORD ret = WNetDisconnectDialog(hwnd, RESOURCETYPE_DISK);
                    if (ret == NO_ERROR)
                        refresh_drives();
                    else if (ret != (DWORD)-1) {
                        if (ret == ERROR_EXTENDED_ERROR)
                            display_network_error(hwnd);
                        else
                            display_error(hwnd, ret);
                    }
                    break;}

                case ID_HELP:
                    WinHelpW(hwnd, RS(b1,IDS_WINEFILE), HELP_INDEX, 0);
                    break;

                case ID_VIEW_FULLSCREEN:
                    CheckMenuItem(Globals.hMenuOptions, cmd, toggle_fullscreen(hwnd)?MF_CHECKED:0);
                    break;

#ifdef __WINE__
                case ID_DRIVE_UNIX_FS: {
                    WCHAR path[MAX_PATH];
                    char cpath[MAX_PATH];
                    ChildWnd* child;

                    if (activate_fs_window(RS(b1,IDS_UNIXFS)))
                        break;

                    getcwd(cpath, MAX_PATH);
                    MultiByteToWideChar(CP_UNIXCP, 0, cpath, -1, path, MAX_PATH);
                    child = alloc_child_window(path, NULL, hwnd);

                    if (!create_child_window(child))
                        HeapFree(GetProcessHeap(), 0, child);
                    break;}
#endif
                case ID_DRIVE_SHELL_NS: {
                    WCHAR path[MAX_PATH];
                    ChildWnd* child;

                    if (activate_fs_window(RS(b1,IDS_SHELL)))
                        break;

                    GetCurrentDirectoryW(MAX_PATH, path);
                    child = alloc_child_window(path, get_path_pidl(path,hwnd), hwnd);

                    if (!create_child_window(child))
                        HeapFree(GetProcessHeap(), 0, child);
                    break;}

                /*TODO: There are even more menu items! */

                case ID_ABOUT:
                                        ShellAboutW(hwnd, RS(b1,IDS_WINEFILE), NULL,
                                                   LoadImageW( Globals.hInstance, MAKEINTRESOURCEW(IDI_WINEFILE),
                                                              IMAGE_ICON, 48, 48, LR_SHARED ));
                    break;

                default:
                    /*TODO: if (wParam >= PM_FIRST_LANGUAGE && wParam <= PM_LAST_LANGUAGE)
                        STRING_SelectLanguageByNumber(wParam - PM_FIRST_LANGUAGE);
                    else */if ((cmd<IDW_FIRST_CHILD || cmd>=IDW_FIRST_CHILD+0x100) &&
                        (cmd<SC_SIZE || cmd>SC_RESTORE))
                        MessageBoxW(hwnd, RS(b2,IDS_NO_IMPL), RS(b1,IDS_WINEFILE), MB_OK);

                    return DefFrameProcW(hwnd, Globals.hmdiclient, nmsg, wparam, lparam);
            }
            break;}

        case WM_SIZE:
            resize_frame(hwnd, LOWORD(lparam), HIWORD(lparam));
            break;  /* do not pass message to DefFrameProcW */

        case WM_DEVICECHANGE:
            SendMessageW(hwnd, WM_COMMAND, MAKELONG(ID_REFRESH,0), 0);
            break;

        case WM_GETMINMAXINFO: {
            LPMINMAXINFO lpmmi = (LPMINMAXINFO)lparam;

            lpmmi->ptMaxTrackSize.x <<= 1;/*2*GetSystemMetrics(SM_CXSCREEN) / SM_CXVIRTUALSCREEN */
            lpmmi->ptMaxTrackSize.y <<= 1;/*2*GetSystemMetrics(SM_CYSCREEN) / SM_CYVIRTUALSCREEN */
            break;}

        case FRM_CALC_CLIENT:
            frame_get_clientspace(hwnd, (PRECT)lparam);
            return TRUE;

        default:
            return DefFrameProcW(hwnd, Globals.hmdiclient, nmsg, wparam, lparam);
    }

    return 0;
}


static WCHAR g_pos_names[COLUMNS][40] = {
    {'\0'}  /* symbol */
};

static const int g_pos_align[] = {
    0,
    HDF_LEFT,   /* Name */
    HDF_RIGHT,  /* Size */
    HDF_LEFT,   /* CDate */
    HDF_LEFT,   /* ADate */
    HDF_LEFT,   /* MDate */
    HDF_LEFT,   /* Index */
    HDF_CENTER, /* Links */
    HDF_CENTER, /* Attributes */
    HDF_LEFT    /* Security */
};

static void resize_tree(ChildWnd* child, int cx, int cy)
{
    HDWP hdwp = BeginDeferWindowPos(4);
    RECT rt;
        WINDOWPOS wp;
        HD_LAYOUT hdl;

    rt.left   = 0;
    rt.top    = 0;
    rt.right  = cx;
    rt.bottom = cy;

    cx = child->split_pos + SPLIT_WIDTH/2;
        hdl.prc   = &rt;
        hdl.pwpos = &wp;

        SendMessageW(child->left.hwndHeader, HDM_LAYOUT, 0, (LPARAM)&hdl);

        DeferWindowPos(hdwp, child->left.hwndHeader, wp.hwndInsertAfter,
                       wp.x-1, wp.y, child->split_pos-SPLIT_WIDTH/2+1, wp.cy, wp.flags);
        DeferWindowPos(hdwp, child->right.hwndHeader, wp.hwndInsertAfter,
                       rt.left+cx+1, wp.y, wp.cx-cx+2, wp.cy, wp.flags);
    DeferWindowPos(hdwp, child->left.hwnd, 0, rt.left, rt.top, child->split_pos-SPLIT_WIDTH/2-rt.left, rt.bottom-rt.top, SWP_NOZORDER|SWP_NOACTIVATE);
    DeferWindowPos(hdwp, child->right.hwnd, 0, rt.left+cx+1, rt.top, rt.right-cx, rt.bottom-rt.top, SWP_NOZORDER|SWP_NOACTIVATE);

    EndDeferWindowPos(hdwp);
}

static HWND create_header(HWND parent, Pane* pane, UINT id)
{
    HDITEMW hdi;
    int idx;

    HWND hwnd = CreateWindowW(WC_HEADERW, 0, WS_CHILD|WS_VISIBLE|HDS_HORZ|HDS_FULLDRAG/*TODO: |HDS_BUTTONS + sort orders*/,
                                 0, 0, 0, 0, parent, (HMENU)ULongToHandle(id), Globals.hInstance, 0);
    if (!hwnd)
        return 0;

    SendMessageW(hwnd, WM_SETFONT, (WPARAM)GetStockObject(DEFAULT_GUI_FONT), FALSE);

    hdi.mask = HDI_TEXT|HDI_WIDTH|HDI_FORMAT;

    for(idx=0; idx<COLUMNS; idx++) {
        hdi.pszText = g_pos_names[idx];
        hdi.fmt = HDF_STRING | g_pos_align[idx];
        hdi.cxy = pane->widths[idx];
        SendMessageW(hwnd, HDM_INSERTITEMW, idx, (LPARAM)&hdi);
    }

    return hwnd;
}

static void init_output(HWND hwnd)
{
    static const WCHAR s1000[] = {'1','0','0','0','\0'};
    WCHAR b[16];
    HFONT old_font;
    HDC hdc = GetDC(hwnd);

    if (GetNumberFormatW(LOCALE_USER_DEFAULT, 0, s1000, 0, b, 16) > 4)
        Globals.num_sep = b[1];
    else
        Globals.num_sep = '.';

    old_font = SelectObject(hdc, Globals.hfont);
    GetTextExtentPoint32W(hdc, sSpace, 1, &Globals.spaceSize);
    SelectObject(hdc, old_font);
    ReleaseDC(hwnd, hdc);
}

static void draw_item(Pane* pane, LPDRAWITEMSTRUCT dis, Entry* entry, int calcWidthCol);


/* calculate preferred width for all visible columns */

static BOOL calc_widths(Pane* pane, BOOL anyway)
{
    int col, x, cx, spc=3*Globals.spaceSize.cx;
    int entries = SendMessageW(pane->hwnd, LB_GETCOUNT, 0, 0);
    int orgWidths[COLUMNS];
    int orgPositions[COLUMNS+1];
    HFONT hfontOld;
    HDC hdc;
    int cnt;

    if (!anyway) {
        memcpy(orgWidths, pane->widths, sizeof(orgWidths));
        memcpy(orgPositions, pane->positions, sizeof(orgPositions));
    }

    for(col=0; col<COLUMNS; col++)
        pane->widths[col] = 0;

    hdc = GetDC(pane->hwnd);
    hfontOld = SelectObject(hdc, Globals.hfont);

    for(cnt=0; cnt<entries; cnt++) {
        Entry* entry = (Entry*)SendMessageW(pane->hwnd, LB_GETITEMDATA, cnt, 0);

        DRAWITEMSTRUCT dis;

        dis.CtlType       = 0;
        dis.CtlID         = 0;
        dis.itemID        = 0;
        dis.itemAction    = 0;
        dis.itemState     = 0;
        dis.hwndItem      = pane->hwnd;
        dis.hDC           = hdc;
        dis.rcItem.left   = 0;
        dis.rcItem.top    = 0;
        dis.rcItem.right  = 0;
        dis.rcItem.bottom = 0;
        /*dis.itemData    = 0; */

        draw_item(pane, &dis, entry, COLUMNS);
    }

    SelectObject(hdc, hfontOld);
    ReleaseDC(pane->hwnd, hdc);

    x = 0;
    for(col=0; col<COLUMNS; col++) {
        pane->positions[col] = x;
        cx = pane->widths[col];

        if (cx) {
            cx += spc;

            if (cx < IMAGE_WIDTH)
                cx = IMAGE_WIDTH;

            pane->widths[col] = cx;
        }

        x += cx;
    }

    pane->positions[COLUMNS] = x;

    SendMessageW(pane->hwnd, LB_SETHORIZONTALEXTENT, x, 0);

    /* no change? */
    if (!anyway && !memcmp(orgWidths, pane->widths, sizeof(orgWidths)))
        return FALSE;

    /* don't move, if only collapsing an entry */
    if (!anyway && pane->widths[0]<orgWidths[0] &&
        !memcmp(orgWidths+1, pane->widths+1, sizeof(orgWidths)-sizeof(int))) {
        pane->widths[0] = orgWidths[0];
        memcpy(pane->positions, orgPositions, sizeof(orgPositions));

        return FALSE;
    }

    InvalidateRect(pane->hwnd, 0, TRUE);

    return TRUE;
}

/* calculate one preferred column width */
static void calc_single_width(Pane* pane, int col)
{
    HFONT hfontOld;
    int x, cx;
    int entries = SendMessageW(pane->hwnd, LB_GETCOUNT, 0, 0);
    int cnt;
    HDC hdc;

    pane->widths[col] = 0;

    hdc = GetDC(pane->hwnd);
    hfontOld = SelectObject(hdc, Globals.hfont);

    for(cnt=0; cnt<entries; cnt++) {
        Entry* entry = (Entry*)SendMessageW(pane->hwnd, LB_GETITEMDATA, cnt, 0);
        DRAWITEMSTRUCT dis;

        dis.CtlType       = 0;
        dis.CtlID         = 0;
        dis.itemID        = 0;
        dis.itemAction    = 0;
        dis.itemState     = 0;
        dis.hwndItem      = pane->hwnd;
        dis.hDC           = hdc;
        dis.rcItem.left   = 0;
        dis.rcItem.top    = 0;
        dis.rcItem.right  = 0;
        dis.rcItem.bottom = 0;
        /*dis.itemData    = 0; */

        draw_item(pane, &dis, entry, col);
    }

    SelectObject(hdc, hfontOld);
    ReleaseDC(pane->hwnd, hdc);

    cx = pane->widths[col];

    if (cx) {
        cx += 3*Globals.spaceSize.cx;

        if (cx < IMAGE_WIDTH)
            cx = IMAGE_WIDTH;
    }

    pane->widths[col] = cx;

    x = pane->positions[col] + cx;

    for(; col<COLUMNS-1; ) {
        pane->positions[++col] = x;
        x += pane->widths[col];
    }

    SendMessageW(pane->hwnd, LB_SETHORIZONTALEXTENT, x, 0);
}

static BOOL pattern_match(LPCWSTR str, LPCWSTR pattern)
{
    for( ; *str&&*pattern; str++,pattern++) {
        if (*pattern == '*') {
            do pattern++;
            while(*pattern == '*');

            if (!*pattern)
                return TRUE;

            for(; *str; str++)
                if (*str==*pattern && pattern_match(str, pattern))
                    return TRUE;

            return FALSE;
        }
        else if (*str!=*pattern && *pattern!='?')
            return FALSE;
    }

    if (*str || *pattern)
        if (*pattern!='*' || pattern[1]!='\0')
            return FALSE;

    return TRUE;
}

static BOOL pattern_imatch(LPCWSTR str, LPCWSTR pattern)
{
    WCHAR b1[BUFFER_LEN], b2[BUFFER_LEN];

    lstrcpyW(b1, str);
    lstrcpyW(b2, pattern);
    CharUpperW(b1);
    CharUpperW(b2);

    return pattern_match(b1, b2);
}


enum FILE_TYPE {
    FT_OTHER        = 0,
    FT_EXECUTABLE   = 1,
    FT_DOCUMENT     = 2
};

static enum FILE_TYPE get_file_type(LPCWSTR filename);


/* insert listbox entries after index idx */

static int insert_entries(Pane* pane, Entry* dir, LPCWSTR pattern, int filter_flags, int idx)
{
    Entry* entry = dir;

    if (!entry)
        return idx;

    ShowWindow(pane->hwnd, SW_HIDE);

    for(; entry; entry=entry->next) {
        if (pane->treePane && !(entry->data.dwFileAttributes&FILE_ATTRIBUTE_DIRECTORY))
            continue;

        if (entry->data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
            /* don't display entries "." and ".." in the left pane */
            if (pane->treePane && entry->data.cFileName[0] == '.')
                                if (entry->data.cFileName[1] == '\0' ||
                                    (entry->data.cFileName[1] == '.' &&
                                    entry->data.cFileName[2] == '\0'))
                    continue;

            /* filter directories in right pane */
            if (!pane->treePane && !(filter_flags&TF_DIRECTORIES))
                continue;
        }

        /* filter using the file name pattern */
        if (pattern)
            if (!pattern_imatch(entry->data.cFileName, pattern))
                continue;

        /* filter system and hidden files */
        if (!(filter_flags&TF_HIDDEN) && (entry->data.dwFileAttributes&(FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_SYSTEM)))
            continue;

        /* filter looking at the file type */
        if ((filter_flags&(TF_PROGRAMS|TF_DOCUMENTS|TF_OTHERS)) != (TF_PROGRAMS|TF_DOCUMENTS|TF_OTHERS))
            switch(get_file_type(entry->data.cFileName)) {
              case FT_EXECUTABLE:
                if (!(filter_flags & TF_PROGRAMS))
                    continue;
                break;

              case FT_DOCUMENT:
                if (!(filter_flags & TF_DOCUMENTS))
                    continue;
                break;

              default: /* TF_OTHERS */
                if (!(filter_flags & TF_OTHERS))
                    continue;
            }

        if (idx != -1)
            idx++;

        SendMessageW(pane->hwnd, LB_INSERTSTRING, idx, (LPARAM)entry);

        if (pane->treePane && entry->expanded)
            idx = insert_entries(pane, entry->down, pattern, filter_flags, idx);
    }

    ShowWindow(pane->hwnd, SW_SHOW);

    return idx;
}


static void format_bytes(LPWSTR buffer, LONGLONG bytes)
{
    static const WCHAR sFmtSmall[]  = {'%', 'u', 0};
    static const WCHAR sFmtBig[] = {'%', '.', '1', 'f', ' ', '%', 's', '\0'};

    if (bytes < 1024)
        sprintfW(buffer, sFmtSmall, (DWORD)bytes);
    else
    {
        WCHAR unit[64];
        UINT resid;
        float fBytes;
        if (bytes >= 1073741824)    /* 1 GB */
        {
            fBytes = ((float)bytes)/1073741824.f+.5f;
            resid = IDS_UNIT_GB;
        }
        else if (bytes >= 1048576)  /* 1 MB */
        {
            fBytes = ((float)bytes)/1048576.f+.5f;
            resid = IDS_UNIT_MB;
        }
        else /* bytes >= 1024 */    /* 1 kB */
        {
            fBytes = ((float)bytes)/1024.f+.5f;
            resid = IDS_UNIT_KB;
        }
        LoadStringW(Globals.hInstance, resid, unit, sizeof(unit)/sizeof(*unit));
        sprintfW(buffer, sFmtBig, fBytes, unit);
    }
}

static void set_space_status(void)
{
    ULARGE_INTEGER ulFreeBytesToCaller, ulTotalBytes, ulFreeBytes;
    WCHAR fmt[64], b1[64], b2[64], buffer[BUFFER_LEN];

    if (GetDiskFreeSpaceExW(NULL, &ulFreeBytesToCaller, &ulTotalBytes, &ulFreeBytes)) {
        DWORD_PTR args[2];
        format_bytes(b1, ulFreeBytesToCaller.QuadPart);
        format_bytes(b2, ulTotalBytes.QuadPart);
        args[0] = (DWORD_PTR)b1;
        args[1] = (DWORD_PTR)b2;
        FormatMessageW(FORMAT_MESSAGE_FROM_STRING|FORMAT_MESSAGE_ARGUMENT_ARRAY,
                       RS(fmt,IDS_FREE_SPACE_FMT), 0, 0, buffer,
                       sizeof(buffer)/sizeof(*buffer), (__ms_va_list*)args);
    } else
        lstrcpyW(buffer, sQMarks);

    SendMessageW(Globals.hstatusbar, SB_SETTEXTW, 0, (LPARAM)buffer);
}


static WNDPROC g_orgTreeWndProc;

static void create_tree_window(HWND parent, Pane* pane, UINT id, UINT id_header, LPCWSTR pattern, int filter_flags)
{
    static const WCHAR sListBox[] = {'L','i','s','t','B','o','x','\0'};

        static BOOL s_init = FALSE;
    Entry* entry = pane->root;

    pane->hwnd = CreateWindowW(sListBox, sEmpty, WS_CHILD|WS_VISIBLE|WS_HSCROLL|WS_VSCROLL|
                                  LBS_DISABLENOSCROLL|LBS_NOINTEGRALHEIGHT|LBS_OWNERDRAWFIXED|LBS_NOTIFY,
                                  0, 0, 0, 0, parent, (HMENU)ULongToHandle(id), Globals.hInstance, 0);

    SetWindowLongPtrW(pane->hwnd, GWLP_USERDATA, (LPARAM)pane);
    g_orgTreeWndProc = (WNDPROC)SetWindowLongPtrW(pane->hwnd, GWLP_WNDPROC, (LPARAM)TreeWndProc);

    SendMessageW(pane->hwnd, WM_SETFONT, (WPARAM)Globals.hfont, FALSE);

    /* insert entries into listbox */
    if (entry)
        insert_entries(pane, entry, pattern, filter_flags, -1);

    /* calculate column widths */
    if (!s_init) {
                s_init = TRUE;
        init_output(pane->hwnd);
    }

    calc_widths(pane, TRUE);

    pane->hwndHeader = create_header(parent, pane, id_header);
}


static void InitChildWindow(ChildWnd* child)
{
    create_tree_window(child->hwnd, &child->left, IDW_TREE_LEFT, IDW_HEADER_LEFT, NULL, TF_ALL);
    create_tree_window(child->hwnd, &child->right, IDW_TREE_RIGHT, IDW_HEADER_RIGHT, child->filter_pattern, child->filter_flags);
}


static void format_date(const FILETIME* ft, WCHAR* buffer, int visible_cols)
{
    SYSTEMTIME systime;
    FILETIME lft;
    int len = 0;

    *buffer = '\0';

    if (!ft->dwLowDateTime && !ft->dwHighDateTime)
        return;

    if (!FileTimeToLocalFileTime(ft, &lft))
        {err: lstrcpyW(buffer,sQMarks); return;}

    if (!FileTimeToSystemTime(&lft, &systime))
        goto err;

    if (visible_cols & COL_DATE) {
        len = GetDateFormatW(LOCALE_USER_DEFAULT, 0, &systime, 0, buffer, BUFFER_LEN);
        if (!len)
            goto err;
    }

    if (visible_cols & COL_TIME) {
        if (len)
            buffer[len-1] = ' ';

        buffer[len++] = ' ';

        if (!GetTimeFormatW(LOCALE_USER_DEFAULT, 0, &systime, 0, buffer+len, BUFFER_LEN-len))
            buffer[len] = '\0';
    }
}


static void calc_width(Pane* pane, LPDRAWITEMSTRUCT dis, int col, LPCWSTR str)
{
    RECT rt = {0, 0, 0, 0};

    DrawTextW(dis->hDC, str, -1, &rt, DT_CALCRECT|DT_SINGLELINE|DT_NOPREFIX);

    if (rt.right > pane->widths[col])
        pane->widths[col] = rt.right;
}

static void calc_tabbed_width(Pane* pane, LPDRAWITEMSTRUCT dis, int col, LPCWSTR str)
{
    RECT rt = {0, 0, 0, 0};

    DrawTextW(dis->hDC, str, -1, &rt, DT_CALCRECT|DT_SINGLELINE|DT_EXPANDTABS|DT_TABSTOP|(2<<8));
    /*FIXME rt (0,0) ??? */

    if (rt.right > pane->widths[col])
        pane->widths[col] = rt.right;
}


static void output_text(Pane* pane, LPDRAWITEMSTRUCT dis, int col, LPCWSTR str, DWORD flags)
{
    int x = dis->rcItem.left;
    RECT rt;

    rt.left   = x+pane->positions[col]+Globals.spaceSize.cx;
    rt.top    = dis->rcItem.top;
    rt.right  = x+pane->positions[col+1]-Globals.spaceSize.cx;
    rt.bottom = dis->rcItem.bottom;

    DrawTextW(dis->hDC, str, -1, &rt, DT_SINGLELINE|DT_NOPREFIX|flags);
}

static void output_tabbed_text(Pane* pane, LPDRAWITEMSTRUCT dis, int col, LPCWSTR str)
{
    int x = dis->rcItem.left;
    RECT rt;

    rt.left   = x+pane->positions[col]+Globals.spaceSize.cx;
    rt.top    = dis->rcItem.top;
    rt.right  = x+pane->positions[col+1]-Globals.spaceSize.cx;
    rt.bottom = dis->rcItem.bottom;

    DrawTextW(dis->hDC, str, -1, &rt, DT_SINGLELINE|DT_EXPANDTABS|DT_TABSTOP|(2<<8));
}

static void output_number(Pane* pane, LPDRAWITEMSTRUCT dis, int col, LPCWSTR str)
{
    int x = dis->rcItem.left;
    RECT rt;
    LPCWSTR s = str;
    WCHAR b[128];
    LPWSTR d = b;
    int pos;

    rt.left   = x+pane->positions[col]+Globals.spaceSize.cx;
    rt.top    = dis->rcItem.top;
    rt.right  = x+pane->positions[col+1]-Globals.spaceSize.cx;
    rt.bottom = dis->rcItem.bottom;

    if (*s)
        *d++ = *s++;

    /* insert number separator characters */
    pos = lstrlenW(s) % 3;

    while(*s)
        if (pos--)
            *d++ = *s++;
        else {
            *d++ = Globals.num_sep;
            pos = 3;
        }

    DrawTextW(dis->hDC, b, d-b, &rt, DT_RIGHT|DT_SINGLELINE|DT_NOPREFIX|DT_END_ELLIPSIS);
}


static BOOL is_exe_file(LPCWSTR ext)
{
    static const WCHAR executable_extensions[][4] = {
        {'C','O','M','\0'},
        {'E','X','E','\0'},
        {'B','A','T','\0'},
        {'C','M','D','\0'},
        {'C','M','M','\0'},
        {'B','T','M','\0'},
        {'A','W','K','\0'},
        {'\0'}
    };

    WCHAR ext_buffer[_MAX_EXT];
    const WCHAR (*p)[4];
    LPCWSTR s;
    LPWSTR d;

    for(s=ext+1,d=ext_buffer; (*d=tolower(*s)); s++)
        d++;

    for(p=executable_extensions; (*p)[0]; p++)
        if (!lstrcmpiW(ext_buffer, *p))
            return TRUE;

    return FALSE;
}

static BOOL is_registered_type(LPCWSTR ext)
{
    /* check if there exists a classname for this file extension in the registry */
    if (!RegQueryValueW(HKEY_CLASSES_ROOT, ext, NULL, NULL))
        return TRUE;

    return FALSE;
}

static enum FILE_TYPE get_file_type(LPCWSTR filename)
{
    LPCWSTR ext = strrchrW(filename, '.');
    if (!ext)
        ext = sEmpty;

    if (is_exe_file(ext))
        return FT_EXECUTABLE;
    else if (is_registered_type(ext))
        return FT_DOCUMENT;
    else
        return FT_OTHER;
}


static void draw_item(Pane* pane, LPDRAWITEMSTRUCT dis, Entry* entry, int calcWidthCol)
{
    WCHAR buffer[BUFFER_LEN];
    DWORD attrs;
    int visible_cols = pane->visible_cols;
    COLORREF bkcolor, textcolor;
    RECT focusRect = dis->rcItem;
    HBRUSH hbrush;
    enum IMAGE img;
    int img_pos, cx;
    int col = 0;

    if (entry) {
        attrs = entry->data.dwFileAttributes;

        if (attrs & FILE_ATTRIBUTE_DIRECTORY) {
            if (entry->data.cFileName[0] == '.' && entry->data.cFileName[1] == '.'
                    && entry->data.cFileName[2] == '\0')
                img = IMG_FOLDER_UP;
            else if (entry->data.cFileName[0] == '.' && entry->data.cFileName[1] == '\0')
                img = IMG_FOLDER_CUR;
                        else if (pane->treePane && (dis->itemState&ODS_FOCUS))
                img = IMG_OPEN_FOLDER;
            else
                img = IMG_FOLDER;
        } else {
            switch(get_file_type(entry->data.cFileName)) {
              case FT_EXECUTABLE:   img = IMG_EXECUTABLE;   break;
              case FT_DOCUMENT:     img = IMG_DOCUMENT;     break;
              default:              img = IMG_FILE;
            }
        }
    } else {
        attrs = 0;
        img = IMG_NONE;
    }

    if (pane->treePane) {
        if (entry) {
            img_pos = dis->rcItem.left + entry->level*(IMAGE_WIDTH+TREE_LINE_DX);

            if (calcWidthCol == -1) {
                int x;
                int y = dis->rcItem.top + IMAGE_HEIGHT/2;
                Entry* up;
                RECT rt_clip;
                HRGN hrgn_org = CreateRectRgn(0, 0, 0, 0);
                HRGN hrgn;

                rt_clip.left   = dis->rcItem.left;
                rt_clip.top    = dis->rcItem.top;
                rt_clip.right  = dis->rcItem.left+pane->widths[col];
                rt_clip.bottom = dis->rcItem.bottom;

                hrgn = CreateRectRgnIndirect(&rt_clip);

                if (!GetClipRgn(dis->hDC, hrgn_org)) {
                    DeleteObject(hrgn_org);
                    hrgn_org = 0;
                }

                ExtSelectClipRgn(dis->hDC, hrgn, RGN_AND);
                DeleteObject(hrgn);

                if ((up=entry->up) != NULL) {
                    MoveToEx(dis->hDC, img_pos-IMAGE_WIDTH/2, y, 0);
                    LineTo(dis->hDC, img_pos-2, y);

                    x = img_pos - IMAGE_WIDTH/2;

                    do {
                        x -= IMAGE_WIDTH+TREE_LINE_DX;

                        if (up->next
                            && (up->next->data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
                            ) {
                            MoveToEx(dis->hDC, x, dis->rcItem.top, 0);
                            LineTo(dis->hDC, x, dis->rcItem.bottom);
                        }
                    } while((up=up->up) != NULL);
                }

                x = img_pos - IMAGE_WIDTH/2;

                MoveToEx(dis->hDC, x, dis->rcItem.top, 0);
                LineTo(dis->hDC, x, y);

                if (entry->next
                                        && (entry->next->data.dwFileAttributes&FILE_ATTRIBUTE_DIRECTORY))
                    LineTo(dis->hDC, x, dis->rcItem.bottom);

                SelectClipRgn(dis->hDC, hrgn_org);
                if (hrgn_org) DeleteObject(hrgn_org);
            } else if (calcWidthCol==col || calcWidthCol==COLUMNS) {
                int right = img_pos + IMAGE_WIDTH - TREE_LINE_DX;

                if (right > pane->widths[col])
                    pane->widths[col] = right;
            }
        } else  {
            img_pos = dis->rcItem.left;
        }
    } else {
        img_pos = dis->rcItem.left;

        if (calcWidthCol==col || calcWidthCol==COLUMNS)
            pane->widths[col] = IMAGE_WIDTH;
    }

    if (calcWidthCol == -1) {
        focusRect.left = img_pos -2;

        if (attrs & FILE_ATTRIBUTE_COMPRESSED)
            textcolor = COLOR_COMPRESSED;
        else
            textcolor = RGB(0,0,0);

        if (dis->itemState & ODS_FOCUS) {
            textcolor = RGB(255,255,255);
            bkcolor = COLOR_SELECTION;
        } else {
            bkcolor = RGB(255,255,255);
        }

        hbrush = CreateSolidBrush(bkcolor);
        FillRect(dis->hDC, &focusRect, hbrush);
        DeleteObject(hbrush);

        SetBkMode(dis->hDC, TRANSPARENT);
        SetTextColor(dis->hDC, textcolor);

        cx = pane->widths[col];

        if (cx && img!=IMG_NONE) {
            if (cx > IMAGE_WIDTH)
                cx = IMAGE_WIDTH;

            if (entry->hicon && entry->hicon!=(HICON)-1)
                DrawIconEx(dis->hDC, img_pos, dis->rcItem.top, entry->hicon, cx, GetSystemMetrics(SM_CYSMICON), 0, 0, DI_NORMAL);
            else
                ImageList_DrawEx(Globals.himl, img, dis->hDC,
                                 img_pos, dis->rcItem.top, cx,
                                 IMAGE_HEIGHT, bkcolor, CLR_DEFAULT, ILD_NORMAL);
        }
    }

    if (!entry)
        return;

    col++;

    /* output file name */
    if (calcWidthCol == -1)
        output_text(pane, dis, col, entry->data.cFileName, 0);
    else if (calcWidthCol==col || calcWidthCol==COLUMNS)
        calc_width(pane, dis, col, entry->data.cFileName);

    col++;

        /* display file size */
    if (visible_cols & COL_SIZE) {
                format_longlong( buffer, ((ULONGLONG)entry->data.nFileSizeHigh << 32) | entry->data.nFileSizeLow );

                if (calcWidthCol == -1)
                        output_number(pane, dis, col, buffer);
                else if (calcWidthCol==col || calcWidthCol==COLUMNS)
                        calc_width(pane, dis, col, buffer);/*TODO: not ever time enough */

        col++;
    }

    /* display file date */
    if (visible_cols & (COL_DATE|COL_TIME)) {
        format_date(&entry->data.ftCreationTime, buffer, visible_cols);
        if (calcWidthCol == -1)
            output_text(pane, dis, col, buffer, 0);
        else if (calcWidthCol==col || calcWidthCol==COLUMNS)
            calc_width(pane, dis, col, buffer);
        col++;

        format_date(&entry->data.ftLastAccessTime, buffer, visible_cols);
        if (calcWidthCol == -1)
            output_text(pane, dis, col, buffer, 0);
        else if (calcWidthCol==col || calcWidthCol==COLUMNS)
            calc_width(pane, dis, col, buffer);
        col++;

        format_date(&entry->data.ftLastWriteTime, buffer, visible_cols);
        if (calcWidthCol == -1)
            output_text(pane, dis, col, buffer, 0);
        else if (calcWidthCol==col || calcWidthCol==COLUMNS)
            calc_width(pane, dis, col, buffer);
        col++;
    }

    if (entry->bhfi_valid) {
        if (visible_cols & COL_INDEX) {
                        static const WCHAR fmtlow[] = {'%','X',0};
                        static const WCHAR fmthigh[] = {'%','X','%','0','8','X',0};

                        if (entry->bhfi.nFileIndexHigh)
                            wsprintfW(buffer, fmthigh,
                                     entry->bhfi.nFileIndexHigh, entry->bhfi.nFileIndexLow );
                        else
                            wsprintfW(buffer, fmtlow, entry->bhfi.nFileIndexLow );

            if (calcWidthCol == -1)
                output_text(pane, dis, col, buffer, DT_RIGHT);
            else if (calcWidthCol==col || calcWidthCol==COLUMNS)
                calc_width(pane, dis, col, buffer);

            col++;
        }

        if (visible_cols & COL_LINKS) {
            wsprintfW(buffer, sNumFmt, entry->bhfi.nNumberOfLinks);

            if (calcWidthCol == -1)
                output_text(pane, dis, col, buffer, DT_CENTER);
            else if (calcWidthCol==col || calcWidthCol==COLUMNS)
                calc_width(pane, dis, col, buffer);

            col++;
        }
    } else
        col += 2;

    /* show file attributes */
    if (visible_cols & COL_ATTRIBUTES) {
        static const WCHAR s11Tabs[] = {' ','\t',' ','\t',' ','\t',' ','\t',' ','\t',' ','\t',' ','\t',' ','\t',' ','\t',' ','\t',' ','\t',' ','\0'};
        lstrcpyW(buffer, s11Tabs);

        if (attrs & FILE_ATTRIBUTE_NORMAL)                  buffer[ 0] = 'N';
        else {
            if (attrs & FILE_ATTRIBUTE_READONLY)            buffer[ 2] = 'R';
            if (attrs & FILE_ATTRIBUTE_HIDDEN)              buffer[ 4] = 'H';
            if (attrs & FILE_ATTRIBUTE_SYSTEM)              buffer[ 6] = 'S';
            if (attrs & FILE_ATTRIBUTE_ARCHIVE)             buffer[ 8] = 'A';
            if (attrs & FILE_ATTRIBUTE_COMPRESSED)          buffer[10] = 'C';
            if (attrs & FILE_ATTRIBUTE_DIRECTORY)           buffer[12] = 'D';
            if (attrs & FILE_ATTRIBUTE_ENCRYPTED)           buffer[14] = 'E';
            if (attrs & FILE_ATTRIBUTE_TEMPORARY)           buffer[16] = 'T';
            if (attrs & FILE_ATTRIBUTE_SPARSE_FILE)         buffer[18] = 'P';
            if (attrs & FILE_ATTRIBUTE_REPARSE_POINT)       buffer[20] = 'Q';
            if (attrs & FILE_ATTRIBUTE_OFFLINE)             buffer[22] = 'O';
            if (attrs & FILE_ATTRIBUTE_NOT_CONTENT_INDEXED) buffer[24] = 'X';
        }

        if (calcWidthCol == -1)
            output_tabbed_text(pane, dis, col, buffer);
        else if (calcWidthCol==col || calcWidthCol==COLUMNS)
            calc_tabbed_width(pane, dis, col, buffer);

        col++;
    }
}

static void set_header(Pane* pane)
{
    HDITEMW item;
    int scroll_pos = GetScrollPos(pane->hwnd, SB_HORZ);
    int i=0, x=0;

    item.mask = HDI_WIDTH;
    item.cxy = 0;

    for(; (i < COLUMNS) && (x+pane->widths[i] < scroll_pos); i++) {
        x += pane->widths[i];
        SendMessageW(pane->hwndHeader, HDM_SETITEMW, i, (LPARAM)&item);
    }

    if (i < COLUMNS) {
        x += pane->widths[i];
        item.cxy = x - scroll_pos;
        SendMessageW(pane->hwndHeader, HDM_SETITEMW, i++, (LPARAM)&item);

        for(; i < COLUMNS; i++) {
            item.cxy = pane->widths[i];
            x += pane->widths[i];
            SendMessageW(pane->hwndHeader, HDM_SETITEMW, i, (LPARAM)&item);
        }
    }
}

static LRESULT pane_notify(Pane* pane, NMHDR* pnmh)
{
    switch(pnmh->code) {
        case HDN_ITEMCHANGEDW: {
            LPNMHEADERW phdn = (LPNMHEADERW)pnmh;
            int idx = phdn->iItem;
            int dx = phdn->pitem->cxy - pane->widths[idx];
            int i;

            RECT clnt;
            GetClientRect(pane->hwnd, &clnt);

            pane->widths[idx] += dx;

            for(i=idx; ++i<=COLUMNS; )
                pane->positions[i] += dx;

            {
                int scroll_pos = GetScrollPos(pane->hwnd, SB_HORZ);
                RECT rt_scr;
                RECT rt_clip;

                rt_scr.left   = pane->positions[idx+1]-scroll_pos;
                rt_scr.top    = 0;
                rt_scr.right  = clnt.right;
                rt_scr.bottom = clnt.bottom;

                rt_clip.left   = pane->positions[idx]-scroll_pos;
                rt_clip.top    = 0;
                rt_clip.right  = clnt.right;
                rt_clip.bottom = clnt.bottom;

                if (rt_scr.left < 0) rt_scr.left = 0;
                if (rt_clip.left < 0) rt_clip.left = 0;

                ScrollWindowEx(pane->hwnd, dx, 0, &rt_scr, &rt_clip, 0, 0, SW_INVALIDATE);

                rt_clip.right = pane->positions[idx+1];
                RedrawWindow(pane->hwnd, &rt_clip, 0, RDW_INVALIDATE|RDW_UPDATENOW);

                if (pnmh->code == HDN_ENDTRACKW) {
                    SendMessageW(pane->hwnd, LB_SETHORIZONTALEXTENT, pane->positions[COLUMNS], 0);

                    if (GetScrollPos(pane->hwnd, SB_HORZ) != scroll_pos)
                        set_header(pane);
                }
            }

            return FALSE;
        }

        case HDN_DIVIDERDBLCLICKW: {
            LPNMHEADERW phdn = (LPNMHEADERW)pnmh;
            HDITEMW item;

            calc_single_width(pane, phdn->iItem);
            item.mask = HDI_WIDTH;
            item.cxy = pane->widths[phdn->iItem];

            SendMessageW(pane->hwndHeader, HDM_SETITEMW, phdn->iItem, (LPARAM)&item);
            InvalidateRect(pane->hwnd, 0, TRUE);
            break;}
    }

    return 0;
}

static void scan_entry(ChildWnd* child, Entry* entry, int idx, HWND hwnd)
{
    WCHAR path[MAX_PATH];
    HCURSOR old_cursor = SetCursor(LoadCursorW(0, (LPCWSTR)IDC_WAIT));

    /* delete sub entries in left pane */
    for(;;) {
        LRESULT res = SendMessageW(child->left.hwnd, LB_GETITEMDATA, idx+1, 0);
        Entry* sub = (Entry*) res;

        if (res==LB_ERR || !sub || sub->level<=entry->level)
            break;

        SendMessageW(child->left.hwnd, LB_DELETESTRING, idx+1, 0);
    }

    /* empty right pane */
    SendMessageW(child->right.hwnd, LB_RESETCONTENT, 0, 0);

    /* release memory */
    free_entries(entry);

    /* read contents from disk */
    if (entry->etype == ET_SHELL)
    {
        read_directory(entry, NULL, child->sortOrder, hwnd);
    }
    else
    {
        get_path(entry, path);
        read_directory(entry, path, child->sortOrder, hwnd);
    }

    /* insert found entries in right pane */
    insert_entries(&child->right, entry->down, child->filter_pattern, child->filter_flags, -1);
    calc_widths(&child->right, FALSE);
    set_header(&child->right);

    child->header_wdths_ok = FALSE;

    SetCursor(old_cursor);
}


/* expand a directory entry */

static BOOL expand_entry(ChildWnd* child, Entry* dir)
{
    int idx;
    Entry* p;

    if (!dir || dir->expanded || !dir->down)
        return FALSE;

    p = dir->down;

    if (p->data.cFileName[0]=='.' && p->data.cFileName[1]=='\0' && p->next) {
        p = p->next;

        if (p->data.cFileName[0]=='.' && p->data.cFileName[1]=='.' &&
                p->data.cFileName[2]=='\0' && p->next)
            p = p->next;
    }

    /* no subdirectories ? */
    if (!(p->data.dwFileAttributes&FILE_ATTRIBUTE_DIRECTORY))
        return FALSE;

    idx = SendMessageW(child->left.hwnd, LB_FINDSTRING, 0, (LPARAM)dir);

    dir->expanded = TRUE;

    /* insert entries in left pane */
    insert_entries(&child->left, p, NULL, TF_ALL, idx);

    if (!child->header_wdths_ok) {
        if (calc_widths(&child->left, FALSE)) {
            set_header(&child->left);

            child->header_wdths_ok = TRUE;
        }
    }

    return TRUE;
}


static void collapse_entry(Pane* pane, Entry* dir)
{
        int idx;

        if (!dir) return;
        idx = SendMessageW(pane->hwnd, LB_FINDSTRING, 0, (LPARAM)dir);

    ShowWindow(pane->hwnd, SW_HIDE);

    /* hide sub entries */
    for(;;) {
        LRESULT res = SendMessageW(pane->hwnd, LB_GETITEMDATA, idx+1, 0);
        Entry* sub = (Entry*) res;

        if (res==LB_ERR || !sub || sub->level<=dir->level)
            break;

        SendMessageW(pane->hwnd, LB_DELETESTRING, idx+1, 0);
    }

    dir->expanded = FALSE;

    ShowWindow(pane->hwnd, SW_SHOW);
}


static void refresh_right_pane(ChildWnd* child)
{
    SendMessageW(child->right.hwnd, LB_RESETCONTENT, 0, 0);
    insert_entries(&child->right, child->right.root, child->filter_pattern, child->filter_flags, -1);
    calc_widths(&child->right, FALSE);

    set_header(&child->right);
}

static void set_curdir(ChildWnd* child, Entry* entry, int idx, HWND hwnd)
{
    WCHAR path[MAX_PATH];

    if (!entry)
        return;

    path[0] = '\0';

    child->left.cur = entry;

    child->right.root = entry->down? entry->down: entry;
    child->right.cur = entry;

    if (!entry->scanned)
        scan_entry(child, entry, idx, hwnd);
    else
        refresh_right_pane(child);

    get_path(entry, path);
    lstrcpyW(child->path, path);

    if (child->hwnd)    /* only change window title, if the window already exists */
        SetWindowTextW(child->hwnd, path);

    if (path[0])
        if (SetCurrentDirectoryW(path))
            set_space_status();
}


static void refresh_child(ChildWnd* child)
{
    WCHAR path[MAX_PATH], drv[_MAX_DRIVE+1];
    Entry* entry;
    int idx;

    get_path(child->left.cur, path);
    _wsplitpath(path, drv, NULL, NULL, NULL);

    child->right.root = NULL;

    scan_entry(child, &child->root.entry, 0, child->hwnd);

    if (child->root.entry.etype == ET_SHELL)
    {
        LPITEMIDLIST local_pidl = get_path_pidl(path,child->hwnd);
        if (local_pidl)
            entry = read_tree(&child->root, NULL, local_pidl , drv, child->sortOrder, child->hwnd);
        else
            entry = NULL;
    }
    else
        entry = read_tree(&child->root, path, NULL, drv, child->sortOrder, child->hwnd);

    if (!entry)
        entry = &child->root.entry;

    insert_entries(&child->left, child->root.entry.down, NULL, TF_ALL, 0);

    set_curdir(child, entry, 0, child->hwnd);

    idx = SendMessageW(child->left.hwnd, LB_FINDSTRING, 0, (LPARAM)child->left.cur);
    SendMessageW(child->left.hwnd, LB_SETCURSEL, idx, 0);
}


static void create_drive_bar(void)
{
    TBBUTTON drivebarBtn = {0, 0, TBSTATE_ENABLED, BTNS_BUTTON, {0, 0}, 0, 0};
    WCHAR b1[BUFFER_LEN];
    int btn = 1;
    PWSTR p;

    GetLogicalDriveStringsW(BUFFER_LEN, Globals.drives);

    Globals.hdrivebar = CreateToolbarEx(Globals.hMainWnd, WS_CHILD|WS_VISIBLE|CCS_NOMOVEY|TBSTYLE_LIST,
                IDW_DRIVEBAR, 2, Globals.hInstance, IDB_DRIVEBAR, &drivebarBtn,
                0, 16, 13, 16, 13, sizeof(TBBUTTON));

#ifdef __WINE__
    /* insert unix file system button */
    b1[0] = '/';
    b1[1] = '\0';
    b1[2] = '\0';
    SendMessageW(Globals.hdrivebar, TB_ADDSTRINGW, 0, (LPARAM)b1);

    drivebarBtn.idCommand = ID_DRIVE_UNIX_FS;
    SendMessageW(Globals.hdrivebar, TB_INSERTBUTTONW, btn++, (LPARAM)&drivebarBtn);
    drivebarBtn.iString++;
#endif
    /* insert shell namespace button */
    load_string(b1, sizeof(b1)/sizeof(b1[0]), IDS_SHELL);
    b1[lstrlenW(b1)+1] = '\0';
    SendMessageW(Globals.hdrivebar, TB_ADDSTRINGW, 0, (LPARAM)b1);

    drivebarBtn.idCommand = ID_DRIVE_SHELL_NS;
    SendMessageW(Globals.hdrivebar, TB_INSERTBUTTONW, btn++, (LPARAM)&drivebarBtn);
    drivebarBtn.iString++;

    /* register windows drive root strings */
    SendMessageW(Globals.hdrivebar, TB_ADDSTRINGW, 0, (LPARAM)Globals.drives);

    drivebarBtn.idCommand = ID_DRIVE_FIRST;

    for(p=Globals.drives; *p; ) {
        switch(GetDriveTypeW(p)) {
            case DRIVE_REMOVABLE:   drivebarBtn.iBitmap = 1;    break;
            case DRIVE_CDROM:       drivebarBtn.iBitmap = 3;    break;
            case DRIVE_REMOTE:      drivebarBtn.iBitmap = 4;    break;
            case DRIVE_RAMDISK:     drivebarBtn.iBitmap = 5;    break;
            default:/*DRIVE_FIXED*/ drivebarBtn.iBitmap = 2;
        }

        SendMessageW(Globals.hdrivebar, TB_INSERTBUTTONW, btn++, (LPARAM)&drivebarBtn);
        drivebarBtn.idCommand++;
        drivebarBtn.iString++;

        while(*p++);
    }
}

static void refresh_drives(void)
{
    RECT rect;

    /* destroy drive bar */
    DestroyWindow(Globals.hdrivebar);
    Globals.hdrivebar = 0;

    /* re-create drive bar */
    create_drive_bar();

    /* update window layout */
    GetClientRect(Globals.hMainWnd, &rect);
    SendMessageW(Globals.hMainWnd, WM_SIZE, 0, MAKELONG(rect.right, rect.bottom));
}


static BOOL launch_file(HWND hwnd, LPCWSTR cmd, UINT nCmdShow)
{
    HINSTANCE hinst = ShellExecuteW(hwnd, NULL/*operation*/, cmd, NULL/*parameters*/, NULL/*dir*/, nCmdShow);

    if (PtrToUlong(hinst) <= 32) {
        display_error(hwnd, GetLastError());
        return FALSE;
    }

    return TRUE;
}


static BOOL launch_entry(Entry* entry, HWND hwnd, UINT nCmdShow)
{
    WCHAR cmd[MAX_PATH];

    if (entry->etype == ET_SHELL) {
        BOOL ret = TRUE;

        SHELLEXECUTEINFOW shexinfo;

        shexinfo.cbSize = sizeof(SHELLEXECUTEINFOW);
        shexinfo.fMask = SEE_MASK_IDLIST;
        shexinfo.hwnd = hwnd;
        shexinfo.lpVerb = NULL;
        shexinfo.lpFile = NULL;
        shexinfo.lpParameters = NULL;
        shexinfo.lpDirectory = NULL;
        shexinfo.nShow = nCmdShow;
        shexinfo.lpIDList = get_to_absolute_pidl(entry, hwnd);

        if (!ShellExecuteExW(&shexinfo)) {
            display_error(hwnd, GetLastError());
            ret = FALSE;
        }

        if (shexinfo.lpIDList != entry->pidl)
            IMalloc_Free(Globals.iMalloc, shexinfo.lpIDList);

        return ret;
    }

    get_path(entry, cmd);

     /* start program, open document... */
    return launch_file(hwnd, cmd, nCmdShow);
}


static void activate_entry(ChildWnd* child, Pane* pane, HWND hwnd)
{
    Entry* entry = pane->cur;

    if (!entry)
        return;

    if (entry->data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
        int scanned_old = entry->scanned;

        if (!scanned_old)
        {
            int idx = SendMessageW(child->left.hwnd, LB_GETCURSEL, 0, 0);
            scan_entry(child, entry, idx, hwnd);
        }

        if (entry->data.cFileName[0]=='.' && entry->data.cFileName[1]=='\0')
            return;

        if (entry->data.cFileName[0]=='.' && entry->data.cFileName[1]=='.' && entry->data.cFileName[2]=='\0') {
            entry = child->left.cur->up;
            collapse_entry(&child->left, entry);
            goto focus_entry;
        } else if (entry->expanded)
            collapse_entry(pane, child->left.cur);
        else {
            expand_entry(child, child->left.cur);

            if (!pane->treePane) focus_entry: {
                int idxstart = SendMessageW(child->left.hwnd, LB_GETCURSEL, 0, 0);
                int idx = SendMessageW(child->left.hwnd, LB_FINDSTRING, idxstart, (LPARAM)entry);
                SendMessageW(child->left.hwnd, LB_SETCURSEL, idx, 0);
                set_curdir(child, entry, idx, hwnd);
            }
        }

        if (!scanned_old) {
            calc_widths(pane, FALSE);

            set_header(pane);
        }
    } else {
        if (GetKeyState(VK_MENU) < 0)
            show_properties_dlg(entry, child->hwnd);
        else
            launch_entry(entry, child->hwnd, SW_SHOWNORMAL);
    }
}


static BOOL pane_command(Pane* pane, UINT cmd)
{
    switch(cmd) {
        case ID_VIEW_NAME:
            if (pane->visible_cols) {
                pane->visible_cols = 0;
                calc_widths(pane, TRUE);
                set_header(pane);
                InvalidateRect(pane->hwnd, 0, TRUE);
                CheckMenuItem(Globals.hMenuView, ID_VIEW_NAME, MF_BYCOMMAND|MF_CHECKED);
                CheckMenuItem(Globals.hMenuView, ID_VIEW_ALL_ATTRIBUTES, MF_BYCOMMAND);
            }
            break;

        case ID_VIEW_ALL_ATTRIBUTES:
            if (pane->visible_cols != COL_ALL) {
                pane->visible_cols = COL_ALL;
                calc_widths(pane, TRUE);
                set_header(pane);
                InvalidateRect(pane->hwnd, 0, TRUE);
                CheckMenuItem(Globals.hMenuView, ID_VIEW_NAME, MF_BYCOMMAND);
                CheckMenuItem(Globals.hMenuView, ID_VIEW_ALL_ATTRIBUTES, MF_BYCOMMAND|MF_CHECKED);
            }
            break;

        case ID_PREFERRED_SIZES: {
            calc_widths(pane, TRUE);
            set_header(pane);
            InvalidateRect(pane->hwnd, 0, TRUE);
            break;}

                /* TODO: more command ids... */

        default:
            return FALSE;
    }

    return TRUE;
}


static void set_sort_order(ChildWnd* child, SORT_ORDER sortOrder)
{
    if (child->sortOrder != sortOrder) {
        child->sortOrder = sortOrder;
        refresh_child(child);
    }
}

static void update_view_menu(ChildWnd* child)
{
    CheckMenuItem(Globals.hMenuView, ID_VIEW_SORT_NAME, child->sortOrder==SORT_NAME? MF_CHECKED: MF_UNCHECKED);
    CheckMenuItem(Globals.hMenuView, ID_VIEW_SORT_TYPE, child->sortOrder==SORT_EXT? MF_CHECKED: MF_UNCHECKED);
    CheckMenuItem(Globals.hMenuView, ID_VIEW_SORT_SIZE, child->sortOrder==SORT_SIZE? MF_CHECKED: MF_UNCHECKED);
    CheckMenuItem(Globals.hMenuView, ID_VIEW_SORT_DATE, child->sortOrder==SORT_DATE? MF_CHECKED: MF_UNCHECKED);
}


static BOOL is_directory(LPCWSTR target)
{
    /*TODO correctly handle UNIX paths */
    DWORD target_attr = GetFileAttributesW(target);

    if (target_attr == INVALID_FILE_ATTRIBUTES)
        return FALSE;

    return (target_attr & FILE_ATTRIBUTE_DIRECTORY) != 0;
}

static BOOL prompt_target(Pane* pane, LPWSTR source, LPWSTR target)
{
    WCHAR path[MAX_PATH];
    int len;

    get_path(pane->cur, path);

    if (DialogBoxParamW(Globals.hInstance, MAKEINTRESOURCEW(IDD_SELECT_DESTINATION), pane->hwnd, DestinationDlgProc, (LPARAM)path) != IDOK)
        return FALSE;

    get_path(pane->cur, source);

    /* convert relative targets to absolute paths */
    if (path[0]!='/' && path[1]!=':') {
        get_path(pane->cur->up, target);
        len = lstrlenW(target);

        if (target[len-1]!='\\' && target[len-1]!='/')
            target[len++] = '/';

        lstrcpyW(target+len, path);
    } else
        lstrcpyW(target, path);

    /* If the target already exists as directory, create a new target below this. */
    if (is_directory(path)) {
        WCHAR fname[_MAX_FNAME], ext[_MAX_EXT];
        static const WCHAR sAppend[] = {'%','s','/','%','s','%','s','\0'};

        _wsplitpath(source, NULL, NULL, fname, ext);

        wsprintfW(target, sAppend, path, fname, ext);
    }

    return TRUE;
}


static IContextMenu2* s_pctxmenu2 = NULL;
static IContextMenu3* s_pctxmenu3 = NULL;

static void CtxMenu_reset(void)
{
    s_pctxmenu2 = NULL;
    s_pctxmenu3 = NULL;
}

static IContextMenu* CtxMenu_query_interfaces(IContextMenu* pcm1)
{
    IContextMenu* pcm = NULL;

    CtxMenu_reset();

    if (IContextMenu_QueryInterface(pcm1, &IID_IContextMenu3, (void**)&pcm) == NOERROR)
        s_pctxmenu3 = (LPCONTEXTMENU3)pcm;
    else if (IContextMenu_QueryInterface(pcm1, &IID_IContextMenu2, (void**)&pcm) == NOERROR)
        s_pctxmenu2 = (LPCONTEXTMENU2)pcm;

    if (pcm) {
        IContextMenu_Release(pcm1);
        return pcm;
    } else
        return pcm1;
}

static BOOL CtxMenu_HandleMenuMsg(UINT nmsg, WPARAM wparam, LPARAM lparam)
{
    if (s_pctxmenu3) {
        if (SUCCEEDED(IContextMenu3_HandleMenuMsg(s_pctxmenu3, nmsg, wparam, lparam)))
            return TRUE;
    }

    if (s_pctxmenu2)
        if (SUCCEEDED(IContextMenu2_HandleMenuMsg(s_pctxmenu2, nmsg, wparam, lparam)))
            return TRUE;

    return FALSE;
}

static HRESULT ShellFolderContextMenu(IShellFolder* shell_folder, HWND hwndParent, int cidl, LPCITEMIDLIST* apidl, int x, int y)
{
    IContextMenu* pcm;
    BOOL executed = FALSE;

    HRESULT hr = IShellFolder_GetUIObjectOf(shell_folder, hwndParent, cidl, apidl, &IID_IContextMenu, NULL, (LPVOID*)&pcm);

    if (SUCCEEDED(hr)) {
        HMENU hmenu = CreatePopupMenu();

        pcm = CtxMenu_query_interfaces(pcm);

        if (hmenu) {
            hr = IContextMenu_QueryContextMenu(pcm, hmenu, 0, FCIDM_SHVIEWFIRST, FCIDM_SHVIEWLAST, CMF_NORMAL);

            if (SUCCEEDED(hr)) {
                UINT idCmd = TrackPopupMenu(hmenu, TPM_LEFTALIGN|TPM_RETURNCMD|TPM_RIGHTBUTTON, x, y, 0, hwndParent, NULL);

                CtxMenu_reset();

                if (idCmd) {
                  CMINVOKECOMMANDINFO cmi;

                  cmi.cbSize = sizeof(CMINVOKECOMMANDINFO);
                  cmi.fMask = 0;
                  cmi.hwnd = hwndParent;
                  cmi.lpVerb = (LPCSTR)(INT_PTR)(idCmd - FCIDM_SHVIEWFIRST);
                  cmi.lpParameters = NULL;
                  cmi.lpDirectory = NULL;
                  cmi.nShow = SW_SHOWNORMAL;
                  cmi.dwHotKey = 0;
                  cmi.hIcon = 0;

                  hr = IContextMenu_InvokeCommand(pcm, &cmi);
                    executed = TRUE;
                }
            } else
                CtxMenu_reset();
        }

        IContextMenu_Release(pcm);
    }

    return FAILED(hr)? hr: executed? S_OK: S_FALSE;
}

static LRESULT CALLBACK ChildWndProc(HWND hwnd, UINT nmsg, WPARAM wparam, LPARAM lparam)
{
    ChildWnd* child = (ChildWnd*)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
    ASSERT(child);

    switch(nmsg) {
        case WM_DRAWITEM: {
            LPDRAWITEMSTRUCT dis = (LPDRAWITEMSTRUCT)lparam;
            Entry* entry = (Entry*) dis->itemData;

            if (dis->CtlID == IDW_TREE_LEFT)
                draw_item(&child->left, dis, entry, -1);
            else if (dis->CtlID == IDW_TREE_RIGHT)
                draw_item(&child->right, dis, entry, -1);
            else
                goto draw_menu_item;

            return TRUE;}

        case WM_CREATE:
            InitChildWindow(child);
            break;

        case WM_NCDESTROY:
            free_child_window(child);
            SetWindowLongPtrW(hwnd, GWLP_USERDATA, 0);
            break;

        case WM_PAINT: {
            PAINTSTRUCT ps;
            HBRUSH lastBrush;
            RECT rt;
            GetClientRect(hwnd, &rt);
            BeginPaint(hwnd, &ps);
            rt.left = child->split_pos-SPLIT_WIDTH/2;
            rt.right = child->split_pos+SPLIT_WIDTH/2+1;
            lastBrush = SelectObject(ps.hdc, GetStockObject(COLOR_SPLITBAR));
            Rectangle(ps.hdc, rt.left, rt.top-1, rt.right, rt.bottom+1);
            SelectObject(ps.hdc, lastBrush);
            EndPaint(hwnd, &ps);
            break;}

        case WM_SETCURSOR:
            if (LOWORD(lparam) == HTCLIENT) {
                POINT pt;