listbox.c File Reference

#include <user32.h>

Include dependency graph for listbox.c:

Go to the source code of this file.

Classes
struct	LB_ITEMDATA
struct	LB_DESCR

Macros
#define	LB_ARRAY_GRANULARITY   16
#define	LB_SCROLL_TIMEOUT   50
#define	LB_TIMER_ID   2
#define	LBS_DISPLAYCHANGED   0x80000000
#define	IS_OWNERDRAW(descr)    ((descr)->style & (LBS_OWNERDRAWFIXED | LBS_OWNERDRAWVARIABLE))
#define	HAS_STRINGS(descr)    (!IS_OWNERDRAW(descr) || ((descr)->style & LBS_HASSTRINGS))
#define	IS_MULTISELECT(descr)
#define	SEND_NOTIFICATION(descr, code)
#define	ISWIN31   (LOWORD(GetVersion()) == 0x0a03)
#define	CHECK_DRIVE(item)
#define	ATTRIBS

Enumerations
enum	TIMER_DIRECTION {   LB_TIMER_NONE , LB_TIMER_UP , LB_TIMER_LEFT , LB_TIMER_DOWN ,   LB_TIMER_RIGHT , LB_TIMER_NONE , LB_TIMER_UP , LB_TIMER_LEFT ,   LB_TIMER_DOWN , LB_TIMER_RIGHT }

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (listbox)
static LRESULT	LISTBOX_GetItemRect (const LB_DESCR *descr, INT index, RECT *rect)
static INT	LISTBOX_GetCurrentPageSize (const LB_DESCR *descr)
static INT	LISTBOX_GetMaxTopIndex (const LB_DESCR *descr)
static void	LISTBOX_UpdateScroll (LB_DESCR *descr)
static LRESULT	LISTBOX_SetTopItem (LB_DESCR *descr, INT index, BOOL scroll)
static void	LISTBOX_UpdatePage (LB_DESCR *descr)
static void	LISTBOX_UpdateSize (LB_DESCR *descr)
static INT	LISTBOX_GetItemFromPoint (const LB_DESCR *descr, INT x, INT y)
static void	LISTBOX_PaintItem (LB_DESCR *descr, HDC hdc, const RECT *rect, INT index, UINT action, BOOL ignoreFocus)
static void	LISTBOX_SetRedraw (LB_DESCR *descr, BOOL on)
static void	LISTBOX_RepaintItem (LB_DESCR *descr, INT index, UINT action)
static void	LISTBOX_DrawFocusRect (LB_DESCR *descr, BOOL on)
static LRESULT	LISTBOX_InitStorage (LB_DESCR *descr, INT nb_items)
static BOOL	LISTBOX_SetTabStops (LB_DESCR *descr, INT count, LPINT tabs)
static LRESULT	LISTBOX_GetText (LB_DESCR *descr, INT index, LPWSTR buffer, BOOL unicode)
static INT	LISTBOX_lstrcmpiW (LCID lcid, LPCWSTR str1, LPCWSTR str2)
static INT	LISTBOX_FindStringPos (LB_DESCR *descr, LPCWSTR str, BOOL exact)
static INT	LISTBOX_FindFileStrPos (LB_DESCR *descr, LPCWSTR str)
static INT	LISTBOX_FindString (LB_DESCR *descr, INT start, LPCWSTR str, BOOL exact)
static LRESULT	LISTBOX_GetSelCount (const LB_DESCR *descr)
static LRESULT	LISTBOX_GetSelItems (const LB_DESCR *descr, INT max, LPINT array)
static LRESULT	LISTBOX_Paint (LB_DESCR *descr, HDC hdc)
static void	LISTBOX_InvalidateItems (LB_DESCR *descr, INT index)
static void	LISTBOX_InvalidateItemRect (LB_DESCR *descr, INT index)
static LRESULT	LISTBOX_GetItemHeight (const LB_DESCR *descr, INT index)
static LRESULT	LISTBOX_SetItemHeight (LB_DESCR *descr, INT index, INT height, BOOL repaint)
static void	LISTBOX_SetHorizontalPos (LB_DESCR *descr, INT pos)
static LRESULT	LISTBOX_SetHorizontalExtent (LB_DESCR *descr, INT extent)
static LRESULT	LISTBOX_SetColumnWidth (LB_DESCR *descr, INT width)
static INT	LISTBOX_SetFont (LB_DESCR *descr, HFONT font)
static void	LISTBOX_MakeItemVisible (LB_DESCR *descr, INT index, BOOL fully)
static LRESULT	LISTBOX_SetCaretIndex (LB_DESCR *descr, INT index, BOOL fully_visible)
static LRESULT	LISTBOX_SelectItemRange (LB_DESCR *descr, INT first, INT last, BOOL on)
static LRESULT	LISTBOX_SetSelection (LB_DESCR *descr, INT index, BOOL on, BOOL send_notify)
static void	LISTBOX_MoveCaret (LB_DESCR *descr, INT index, BOOL fully_visible)
static LRESULT	LISTBOX_InsertItem (LB_DESCR *descr, INT index, LPWSTR str, ULONG_PTR data)
static LRESULT	LISTBOX_InsertString (LB_DESCR *descr, INT index, LPCWSTR str)
static void	LISTBOX_DeleteItem (LB_DESCR *descr, INT index)
static LRESULT	LISTBOX_RemoveItem (LB_DESCR *descr, INT index)
static void	LISTBOX_ResetContent (LB_DESCR *descr)
static LRESULT	LISTBOX_SetCount (LB_DESCR *descr, INT count)
static LRESULT	LISTBOX_Directory (LB_DESCR *descr, UINT attrib, LPCWSTR filespec, BOOL long_names)
static LRESULT	LISTBOX_HandleVScroll (LB_DESCR *descr, WORD scrollReq, WORD pos)
static LRESULT	LISTBOX_HandleHScroll (LB_DESCR *descr, WORD scrollReq, WORD pos)
static LRESULT	LISTBOX_HandleMouseWheel (LB_DESCR *descr, SHORT delta)
static LRESULT	LISTBOX_HandleLButtonDown (LB_DESCR *descr, DWORD keys, INT x, INT y)
static LRESULT	LISTBOX_HandleLButtonDownCombo (LB_DESCR *descr, UINT msg, DWORD keys, INT x, INT y)
static LRESULT	LISTBOX_HandleLButtonUp (LB_DESCR *descr)
static LRESULT	LISTBOX_HandleTimer (LB_DESCR *descr, INT index, TIMER_DIRECTION dir)
static LRESULT	LISTBOX_HandleSystemTimer (LB_DESCR *descr)
static void	LISTBOX_HandleMouseMove (LB_DESCR *descr, INT x, INT y)
static LRESULT	LISTBOX_HandleKeyDown (LB_DESCR *descr, DWORD key)
static LRESULT	LISTBOX_HandleChar (LB_DESCR *descr, WCHAR charW)
static BOOL	LISTBOX_update_uistate (LB_DESCR *descr)
static BOOL	LISTBOX_Create (HWND hwnd, LPHEADCOMBO lphc)
static BOOL	LISTBOX_Destroy (LB_DESCR *descr)
LRESULT WINAPI	ListBoxWndProc_common (HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode)
LRESULT WINAPI	ListBoxWndProcA (HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
LRESULT WINAPI	ListBoxWndProcW (HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)

Variables
static TIMER_DIRECTION	LISTBOX_Timer = LB_TIMER_NONE
static const WCHAR	listboxW [] = {'L','i','s','t','B','o','x',0}
const struct builtin_class_descr	LISTBOX_builtin_class
static const WCHAR	combolboxW [] = {'C','o','m','b','o','L','B','o','x',0}
const struct builtin_class_descr	COMBOLBOX_builtin_class

Macro Definition Documentation

ATTRIBS

#define ATTRIBS

Value:

                 (FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_HIDDEN | \
                 FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_ARCHIVE)

CHECK_DRIVE

#define CHECK_DRIVE

(

item

)

Value:

    if ((item)->str[0] == '[') \
    { \
        if (!strncmpiW( str, (item)->str+1, len )) return i; \
        if (((item)->str[1] == '-') && !strncmpiW(str, (item)->str+2, len)) \
        return i; \
    }

HAS_STRINGS

#define HAS_STRINGS

(

descr

)

(!IS_OWNERDRAW(descr) || ((descr)->style & LBS_HASSTRINGS))

Definition at line 94 of file listbox.c.

IS_MULTISELECT

#define IS_MULTISELECT

(

descr

)

Value:

    ((descr)->style & (LBS_MULTIPLESEL|LBS_EXTENDEDSEL) && \
     !((descr)->style & LBS_NOSEL))

Definition at line 98 of file listbox.c.

IS_OWNERDRAW

#define IS_OWNERDRAW

(

descr

)

((descr)->style & (LBS_OWNERDRAWFIXED | LBS_OWNERDRAWVARIABLE))

Definition at line 91 of file listbox.c.

ISWIN31

#define ISWIN31   (LOWORD(GetVersion()) == 0x0a03)

Definition at line 106 of file listbox.c.

LB_ARRAY_GRANULARITY

#define LB_ARRAY_GRANULARITY   16

Definition at line 38 of file listbox.c.

LB_SCROLL_TIMEOUT

#define LB_SCROLL_TIMEOUT   50

Definition at line 41 of file listbox.c.

LB_TIMER_ID

#define LB_TIMER_ID   2

Definition at line 44 of file listbox.c.

LBS_DISPLAYCHANGED

#define LBS_DISPLAYCHANGED   0x80000000

Definition at line 47 of file listbox.c.

SEND_NOTIFICATION

#define SEND_NOTIFICATION	(		descr,
			code
	)

Value:

    (SendMessageW( (descr)->owner, WM_COMMAND, \
     MAKEWPARAM( GetWindowLongPtrW((descr->self),GWLP_ID), (code)), (LPARAM)(descr->self) ))

Definition at line 102 of file listbox.c.

Enumeration Type Documentation

TIMER_DIRECTION

enum TIMER_DIRECTION

Enumerator
LB_TIMER_NONE
LB_TIMER_UP
LB_TIMER_LEFT
LB_TIMER_DOWN
LB_TIMER_RIGHT
LB_TIMER_NONE
LB_TIMER_UP
LB_TIMER_LEFT
LB_TIMER_DOWN
LB_TIMER_RIGHT

Definition at line 109 of file listbox.c.

{
    LB_TIMER_NONE,
    LB_TIMER_UP,
    LB_TIMER_LEFT,
    LB_TIMER_DOWN,
    LB_TIMER_RIGHT
} TIMER_DIRECTION;

Function Documentation

LISTBOX_Create()

static BOOL LISTBOX_Create ( HWND  hwnd, LPHEADCOMBO  lphc  )

static

Definition at line 2511 of file listbox.c.

{
    LB_DESCR *descr;
    MEASUREITEMSTRUCT mis;
    RECT rect;
 
    if (!(descr = HeapAlloc( GetProcessHeap(), 0, sizeof(*descr) )))
        return FALSE;
 
    GetClientRect( hwnd, &rect );
    descr->self          = hwnd;
    descr->owner         = GetParent( descr->self );
    descr->style         = GetWindowLongPtrW( descr->self, GWL_STYLE );
    descr->width         = rect.right - rect.left;
    descr->height        = rect.bottom - rect.top;
    descr->items         = NULL;
    descr->nb_items      = 0;
    descr->top_item      = 0;
    descr->selected_item = -1;
    descr->focus_item    = 0;
    descr->anchor_item   = -1;
    descr->item_height   = 1;
    descr->page_size     = 1;
    descr->column_width  = 150;
    descr->horz_extent   = 0;
    descr->horz_pos      = 0;
    descr->nb_tabs       = 0;
    descr->tabs          = NULL;
    descr->wheel_remain  = 0;
    descr->caret_on      = !lphc;
    if (descr->style & LBS_NOSEL) descr->caret_on = FALSE;
    descr->in_focus      = FALSE;
    descr->captured      = FALSE;
    descr->font          = 0;
    descr->locale        = GetUserDefaultLCID();
    descr->lphc      = lphc;
 
    if( lphc )
    {
        TRACE("[%p]: resetting owner %p -> %p\n", descr->self, descr->owner, lphc->self );
        descr->owner = lphc->self;
    }
 
    SetWindowLongPtrW( descr->self, 0, (LONG_PTR)descr );
 
    LISTBOX_update_uistate(descr); // ReactOS
 
/*    if (wnd->dwExStyle & WS_EX_NOPARENTNOTIFY) descr->style &= ~LBS_NOTIFY;
 */
    if (descr->style & LBS_EXTENDEDSEL) descr->style |= LBS_MULTIPLESEL;
    if (descr->style & LBS_MULTICOLUMN) descr->style &= ~LBS_OWNERDRAWVARIABLE;
    if (descr->style & LBS_OWNERDRAWVARIABLE) descr->style |= LBS_NOINTEGRALHEIGHT;
 
    /* A no-data list box must also have the LBS_OWNERDRAWFIXED style, but must
       not have the LBS_SORT or LBS_HASSTRINGS style. */
    if ( descr->style & LBS_NODATA &&
        (!(descr->style & LBS_OWNERDRAWFIXED) || descr->style & (LBS_HASSTRINGS|LBS_SORT) ) )
       descr->style &= ~LBS_NODATA;
    descr->item_height = LISTBOX_SetFont( descr, 0 );
 
    if (descr->style & LBS_OWNERDRAWFIXED)
    {
    if( descr->lphc && (descr->lphc->dwStyle & CBS_DROPDOWN))
    {
        /* WinWord gets VERY unhappy if we send WM_MEASUREITEM from here */
      descr->item_height = lphc->fixedOwnerDrawHeight;
    }
    else
    {
            UINT id = (UINT)GetWindowLongPtrW( descr->self, GWLP_ID );
            mis.CtlType    = ODT_LISTBOX;
            mis.CtlID      = id;
            mis.itemID     = -1;
            mis.itemWidth  =  0;
            mis.itemData   =  0;
            mis.itemHeight = descr->item_height;
            SendMessageW( descr->owner, WM_MEASUREITEM, id, (LPARAM)&mis );
            descr->item_height = mis.itemHeight ? mis.itemHeight : 1;
    }
    }
 
    TRACE("owner: %p, style: %08x, width: %d, height: %d\n", descr->owner, descr->style, descr->width, descr->height);
    return TRUE;
}

LISTBOX_DeleteItem()

static void LISTBOX_DeleteItem ( LB_DESCR *  descr, INT  index  )

static

Definition at line 1654 of file listbox.c.

{
    /* save the item data before it gets freed by LB_RESETCONTENT */
    ULONG_PTR item_data = descr->items[index].data;
    LPWSTR item_str = descr->items[index].str;
 
    if (!descr->nb_items)
        SendMessageW( descr->self, LB_RESETCONTENT, 0, 0 );
 
    /* Note: Win 3.1 only sends DELETEITEM on owner-draw items,
     *       while Win95 sends it for all items with user data.
     *       It's probably better to send it too often than not
     *       often enough, so this is what we do here.
     */
    if (IS_OWNERDRAW(descr) || item_data)
    {
        DELETEITEMSTRUCT dis;
        UINT id = (UINT)GetWindowLongPtrW( descr->self, GWLP_ID );
 
        dis.CtlType  = ODT_LISTBOX;
        dis.CtlID    = id;
        dis.itemID   = index;
        dis.hwndItem = descr->self;
        dis.itemData = item_data;
        SendMessageW( descr->owner, WM_DELETEITEM, id, (LPARAM)&dis );
    }
    if (HAS_STRINGS(descr))
        HeapFree( GetProcessHeap(), 0, item_str );
}

LISTBOX_Destroy()

static BOOL LISTBOX_Destroy ( LB_DESCR *  descr )

static

Definition at line 2602 of file listbox.c.

{
    LISTBOX_ResetContent( descr );
    SetWindowLongPtrW( descr->self, 0, 0 );
    HeapFree( GetProcessHeap(), 0, descr );
    return TRUE;
}

LISTBOX_Directory()

static LRESULT LISTBOX_Directory ( LB_DESCR *  descr, UINT  attrib, LPCWSTR  filespec, BOOL  long_names  )

static

Definition at line 1806 of file listbox.c.

{
    HANDLE handle;
    LRESULT ret = LB_OKAY;
    WIN32_FIND_DATAW entry;
    int pos;
    LRESULT maxinsert = LB_ERR;
 
    /* don't scan directory if we just want drives exclusively */
    if (attrib != (DDL_DRIVES | DDL_EXCLUSIVE)) {
        /* scan directory */
        if ((handle = FindFirstFileW(filespec, &entry)) == INVALID_HANDLE_VALUE)
        {
         int le = GetLastError();
            if ((le != ERROR_NO_MORE_FILES) && (le != ERROR_FILE_NOT_FOUND)) return LB_ERR;
        }
        else
        {
            do
            {
                WCHAR buffer[270];
                if (entry.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
                {
                    static const WCHAR bracketW[]  = { ']',0 };
                    static const WCHAR dotW[] = { '.',0 };
                    if (!(attrib & DDL_DIRECTORY) ||
                        !strcmpW( entry.cFileName, dotW )) continue;
                    buffer[0] = '[';
                    if (!long_names && entry.cAlternateFileName[0])
                        strcpyW( buffer + 1, entry.cAlternateFileName );
                    else
                        strcpyW( buffer + 1, entry.cFileName );
                    strcatW(buffer, bracketW);
                }
                else  /* not a directory */
                {
#define ATTRIBS (FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_HIDDEN | \
                 FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_ARCHIVE)
 
                    if ((attrib & DDL_EXCLUSIVE) &&
                        ((attrib & ATTRIBS) != (entry.dwFileAttributes & ATTRIBS)))
                        continue;
#undef ATTRIBS
                    if (!long_names && entry.cAlternateFileName[0])
                        strcpyW( buffer, entry.cAlternateFileName );
                    else
                        strcpyW( buffer, entry.cFileName );
                }
                if (!long_names) CharLowerW( buffer );
                pos = LISTBOX_FindFileStrPos( descr, buffer );
                if ((ret = LISTBOX_InsertString( descr, pos, buffer )) < 0)
                    break;
                if (ret <= maxinsert) maxinsert++; else maxinsert = ret;
            } while (FindNextFileW( handle, &entry ));
            FindClose( handle );
        }
    }
    if (ret >= 0)
    {
        ret = maxinsert;
 
        /* scan drives */
        if (attrib & DDL_DRIVES)
        {
            WCHAR buffer[] = {'[','-','a','-',']',0};
            WCHAR root[] = {'A',':','\\',0};
            int drive;
            for (drive = 0; drive < 26; drive++, buffer[2]++, root[0]++)
            {
                if (GetDriveTypeW(root) <= DRIVE_NO_ROOT_DIR) continue;
                if ((ret = LISTBOX_InsertString( descr, -1, buffer )) < 0)
                    break;
            }
        }
    }
    return ret;
}

LISTBOX_DrawFocusRect()

static void LISTBOX_DrawFocusRect ( LB_DESCR *  descr, BOOL  on  )

static

Definition at line 690 of file listbox.c.

{
    HDC hdc;
    RECT rect;
    HFONT oldFont = 0;
 
    /* Do not repaint the item if the item is not visible */
    if (!IsWindowVisible(descr->self)) return;
 
    if (descr->focus_item == -1) return;
    if (!descr->caret_on || !descr->in_focus) return;
 
    if (LISTBOX_GetItemRect( descr, descr->focus_item, &rect ) != 1) return;
    if (!(hdc = GetDCEx( descr->self, 0, DCX_CACHE ))) return;
    if (descr->font) oldFont = SelectObject( hdc, descr->font );
    if (!IsWindowEnabled(descr->self))
        SetTextColor( hdc, GetSysColor( COLOR_GRAYTEXT ) );
    SetWindowOrgEx( hdc, descr->horz_pos, 0, NULL );
    LISTBOX_PaintItem( descr, hdc, &rect, descr->focus_item, ODA_FOCUS, !on );
    if (oldFont) SelectObject( hdc, oldFont );
    ReleaseDC( descr->self, hdc );
}

LISTBOX_FindFileStrPos()

static INT LISTBOX_FindFileStrPos ( LB_DESCR *  descr, LPCWSTR  str  )

static

Definition at line 889 of file listbox.c.

{
    INT min, max, res;
 
    if (!HAS_STRINGS(descr))
        return LISTBOX_FindStringPos( descr, str, FALSE );
    min = 0;
    max = descr->nb_items;
    while (min != max)
    {
        INT index = (min + max) / 2;
        LPCWSTR p = descr->items[index].str;
        if (*p == '[')  /* drive or directory */
        {
            if (*str != '[') res = -1;
            else if (p[1] == '-')  /* drive */
            {
                if (str[1] == '-') res = str[2] - p[2];
                else res = -1;
            }
            else  /* directory */
            {
                if (str[1] == '-') res = 1;
                else res = LISTBOX_lstrcmpiW( descr->locale, str, p );
            }
        }
        else  /* filename */
        {
            if (*str == '[') res = 1;
            else res = LISTBOX_lstrcmpiW( descr->locale, str, p );
        }
        if (!res) return index;
        if (res < 0) max = index;
        else min = index + 1;
    }
    return max;
}

LISTBOX_FindString()

static INT LISTBOX_FindString ( LB_DESCR *  descr, INT  start, LPCWSTR  str, BOOL  exact  )

static

Definition at line 933 of file listbox.c.

{
    INT i;
    LB_ITEMDATA *item;
 
    if (start >= descr->nb_items) start = -1;
    item = descr->items + start + 1;
    if (HAS_STRINGS(descr))
    {
        if (!str || ! str[0] ) return LB_ERR;
        if (exact)
        {
            for (i = start + 1; i < descr->nb_items; i++, item++)
                if (!LISTBOX_lstrcmpiW( descr->locale, str, item->str )) return i;
            for (i = 0, item = descr->items; i <= start; i++, item++)
                if (!LISTBOX_lstrcmpiW( descr->locale, str, item->str )) return i;
        }
        else
        {
 /* Special case for drives and directories: ignore prefix */
#define CHECK_DRIVE(item) \
    if ((item)->str[0] == '[') \
    { \
        if (!strncmpiW( str, (item)->str+1, len )) return i; \
        if (((item)->str[1] == '-') && !strncmpiW(str, (item)->str+2, len)) \
        return i; \
    }
 
            INT len = strlenW(str);
            for (i = start + 1; i < descr->nb_items; i++, item++)
            {
               if (!strncmpiW( str, item->str, len )) return i;
               CHECK_DRIVE(item);
            }
            for (i = 0, item = descr->items; i <= start; i++, item++)
            {
               if (!strncmpiW( str, item->str, len )) return i;
               CHECK_DRIVE(item);
            }
#undef CHECK_DRIVE
        }
    }
    else
    {
        if (exact && (descr->style & LBS_SORT))
            /* If sorted, use a WM_COMPAREITEM binary search */
            return LISTBOX_FindStringPos( descr, str, TRUE );
 
        /* Otherwise use a linear search */
        for (i = start + 1; i < descr->nb_items; i++, item++)
            if (item->data == (ULONG_PTR)str) return i;
        for (i = 0, item = descr->items; i <= start; i++, item++)
            if (item->data == (ULONG_PTR)str) return i;
    }
    return LB_ERR;
}

LISTBOX_FindStringPos()

static INT LISTBOX_FindStringPos ( LB_DESCR *  descr, LPCWSTR  str, BOOL  exact  )

static

Definition at line 846 of file listbox.c.

{
    INT index, min, max, res;
 
    if (!(descr->style & LBS_SORT)) return -1;  /* Add it at the end */
    min = 0;
    max = descr->nb_items;
    while (min != max)
    {
        index = (min + max) / 2;
        if (HAS_STRINGS(descr))
            res = LISTBOX_lstrcmpiW( descr->locale, str, descr->items[index].str);
        else
        {
            COMPAREITEMSTRUCT cis;
            UINT id = (UINT)GetWindowLongPtrW( descr->self, GWLP_ID );
 
            cis.CtlType    = ODT_LISTBOX;
            cis.CtlID      = id;
            cis.hwndItem   = descr->self;
            /* note that some application (MetaStock) expects the second item
             * to be in the listbox */
            cis.itemID1    = -1;
            cis.itemData1  = (ULONG_PTR)str;
            cis.itemID2    = index;
            cis.itemData2  = descr->items[index].data;
            cis.dwLocaleId = descr->locale;
            res = SendMessageW( descr->owner, WM_COMPAREITEM, id, (LPARAM)&cis );
        }
        if (!res) return index;
        if (res < 0) max = index;
        else min = index + 1;
    }
    return exact ? -1 : max;
}

LISTBOX_GetCurrentPageSize()

static INT LISTBOX_GetCurrentPageSize ( const LB_DESCR *  descr )

static

Definition at line 159 of file listbox.c.

{
    INT i, height;
    if (!(descr->style & LBS_OWNERDRAWVARIABLE)) return descr->page_size;
    for (i = descr->top_item, height = 0; i < descr->nb_items; i++)
    {
        if ((height += descr->items[i].height) > descr->height) break;
    }
    if (i == descr->top_item) return 1;
    else return i - descr->top_item;
}

LISTBOX_GetItemFromPoint()

static INT LISTBOX_GetItemFromPoint ( const LB_DESCR *  descr, INT  x, INT  y  )

static

Definition at line 474 of file listbox.c.

{
    INT index = descr->top_item;
 
    if (!descr->nb_items) return -1;  /* No items */
    if (descr->style & LBS_OWNERDRAWVARIABLE)
    {
        INT pos = 0;
        if (y >= 0)
        {
            while (index < descr->nb_items)
            {
                if ((pos += descr->items[index].height) > y) break;
                index++;
            }
        }
        else
        {
            while (index > 0)
            {
                index--;
                if ((pos -= descr->items[index].height) <= y) break;
            }
        }
    }
    else if (descr->style & LBS_MULTICOLUMN)
    {
        if (y >= descr->item_height * descr->page_size) return -1;
        if (y >= 0) index += y / descr->item_height;
        if (x >= 0) index += (x / descr->column_width) * descr->page_size;
        else index -= (((x + 1) / descr->column_width) - 1) * descr->page_size;
    }
    else
    {
        index += (y / descr->item_height);
    }
    if (index < 0) return 0;
    if (index >= descr->nb_items) return -1;
    return index;
}

LISTBOX_GetItemHeight()

static LRESULT LISTBOX_GetItemHeight ( const LB_DESCR *  descr, INT  index  )

static

Definition at line 1180 of file listbox.c.

{
    if (descr->style & LBS_OWNERDRAWVARIABLE && descr->nb_items > 0)
    {
        if ((index < 0) || (index >= descr->nb_items))
        {
            SetLastError(ERROR_INVALID_INDEX);
            return LB_ERR;
        }
        return descr->items[index].height;
    }
    else return descr->item_height;
}

LISTBOX_GetItemRect()

static LRESULT LISTBOX_GetItemRect ( const LB_DESCR *  descr, INT  index, RECT *  rect  )

static

Definition at line 416 of file listbox.c.

{
    /* Index <= 0 is legal even on empty listboxes */
    if (index && (index >= descr->nb_items))
    {
        memset(rect, 0, sizeof(*rect));
        SetLastError(ERROR_INVALID_INDEX);
        return LB_ERR;
    }
    SetRect( rect, 0, 0, descr->width, descr->height );
    if (descr->style & LBS_MULTICOLUMN)
    {
        INT col = (index / descr->page_size) -
                        (descr->top_item / descr->page_size);
        rect->left += col * descr->column_width;
        rect->right = rect->left + descr->column_width;
        rect->top += (index % descr->page_size) * descr->item_height;
        rect->bottom = rect->top + descr->item_height;
    }
    else if (descr->style & LBS_OWNERDRAWVARIABLE)
    {
        INT i;
        rect->right += descr->horz_pos;
        if ((index >= 0) && (index < descr->nb_items))
        {
            if (index < descr->top_item)
            {
                for (i = descr->top_item-1; i >= index; i--)
                    rect->top -= descr->items[i].height;
            }
            else
            {
                for (i = descr->top_item; i < index; i++)
                    rect->top += descr->items[i].height;
            }
            rect->bottom = rect->top + descr->items[index].height;
 
        }
    }
    else
    {
        rect->top += (index - descr->top_item) * descr->item_height;
        rect->bottom = rect->top + descr->item_height;
        rect->right += descr->horz_pos;
    }
 
    TRACE("item %d, rect %s\n", index, wine_dbgstr_rect(rect));
 
    return ((rect->left < descr->width) && (rect->right > 0) &&
            (rect->top < descr->height) && (rect->bottom > 0));
}

LISTBOX_GetMaxTopIndex()

static INT LISTBOX_GetMaxTopIndex ( const LB_DESCR *  descr )

static

Definition at line 177 of file listbox.c.

{
    INT max, page;
 
    if (descr->style & LBS_OWNERDRAWVARIABLE)
    {
        page = descr->height;
        for (max = descr->nb_items - 1; max >= 0; max--)
            if ((page -= descr->items[max].height) < 0) break;
        if (max < descr->nb_items - 1) max++;
    }
    else if (descr->style & LBS_MULTICOLUMN)
    {
        if ((page = descr->width / descr->column_width) < 1) page = 1;
        max = (descr->nb_items + descr->page_size - 1) / descr->page_size;
        max = (max - page) * descr->page_size;
    }
    else
    {
        max = descr->nb_items - descr->page_size;
    }
    if (max < 0) max = 0;
    return max;
}

LISTBOX_GetSelCount()

static LRESULT LISTBOX_GetSelCount ( const LB_DESCR *  descr )

static

Definition at line 994 of file listbox.c.

{
    INT i, count;
    const LB_ITEMDATA *item = descr->items;
 
    if (!(descr->style & LBS_MULTIPLESEL) ||
        (descr->style & LBS_NOSEL))
      return LB_ERR;
    for (i = count = 0; i < descr->nb_items; i++, item++)
        if (item->selected) count++;
    return count;
}

LISTBOX_GetSelItems()

static LRESULT LISTBOX_GetSelItems ( const LB_DESCR *  descr, INT  max, LPINT  array  )

static

Definition at line 1011 of file listbox.c.

{
    INT i, count;
    const LB_ITEMDATA *item = descr->items;
 
    if (!(descr->style & LBS_MULTIPLESEL)) return LB_ERR;
    for (i = count = 0; (i < descr->nb_items) && (count < max); i++, item++)
        if (item->selected) array[count++] = i;
    return count;
}

LISTBOX_GetText()

static LRESULT LISTBOX_GetText ( LB_DESCR *  descr, INT  index, LPWSTR  buffer, BOOL  unicode  )

static

Definition at line 778 of file listbox.c.

{
    DWORD len;
 
    if ((index < 0) || (index >= descr->nb_items))
    {
        SetLastError(ERROR_INVALID_INDEX);
        return LB_ERR;
    }
    if (HAS_STRINGS(descr))
    {
        if (!buffer)
        {
            len = strlenW(descr->items[index].str);
            if( unicode )
                return len;
            return WideCharToMultiByte( CP_ACP, 0, descr->items[index].str, len,
                                        NULL, 0, NULL, NULL );
        }
 
    TRACE("index %d (0x%04x) %s\n", index, index, debugstr_w(descr->items[index].str));
 
        _SEH2_TRY  /* hide a Delphi bug that passes a read-only buffer */
        {
            if(unicode)
            {
                strcpyW( buffer, descr->items[index].str );
                len = strlenW(buffer);
            }
            else
            {
                len = WideCharToMultiByte(CP_ACP, 0, descr->items[index].str, -1,
                                          (LPSTR)buffer, 0x7FFFFFFF, NULL, NULL) - 1;
            }
        }
        _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
        {
            ERR( "got an invalid buffer (Delphi bug?)\n" );
            SetLastError( ERROR_INVALID_PARAMETER );
            len = LB_ERR;
        }
        _SEH2_END
    } else {
        if (buffer)
            *((LPDWORD)buffer)=*(LPDWORD)(&descr->items[index].data);
        len = sizeof(DWORD);
    }
    return len;
}

LISTBOX_HandleChar()

static LRESULT LISTBOX_HandleChar ( LB_DESCR *  descr, WCHAR  charW  )

static

Definition at line 2469 of file listbox.c.

{
    INT caret = -1;
    WCHAR str[2];
 
    str[0] = charW;
    str[1] = '\0';
 
    if (descr->style & LBS_WANTKEYBOARDINPUT)
    {
        caret = SendMessageW( descr->owner, WM_CHARTOITEM,
                                MAKEWPARAM(charW, descr->focus_item),
                                (LPARAM)descr->self );
        if (caret == -2) return 0;
    }
    if (caret == -1)
        caret = LISTBOX_FindString( descr, descr->focus_item, str, FALSE);
    if (caret != -1)
    {
        if ((!IS_MULTISELECT(descr)) && descr->selected_item == -1)
           LISTBOX_SetSelection( descr, caret, TRUE, FALSE);
        LISTBOX_MoveCaret( descr, caret, TRUE );
        if ((descr->style & LBS_NOTIFY) && descr->nb_items)
            SEND_NOTIFICATION( descr, LBN_SELCHANGE );
    }
    return 0;
}

LISTBOX_HandleHScroll()

static LRESULT LISTBOX_HandleHScroll ( LB_DESCR *  descr, WORD  scrollReq, WORD  pos  )

static

Definition at line 1933 of file listbox.c.

{
    SCROLLINFO info;
    INT page;
 
    if (descr->style & LBS_MULTICOLUMN)
    {
        switch(scrollReq)
        {
        case SB_LINELEFT:
            LISTBOX_SetTopItem( descr, descr->top_item-descr->page_size,
                                TRUE );
            break;
        case SB_LINERIGHT:
            LISTBOX_SetTopItem( descr, descr->top_item+descr->page_size,
                                TRUE );
            break;
        case SB_PAGELEFT:
            page = descr->width / descr->column_width;
            if (page < 1) page = 1;
            LISTBOX_SetTopItem( descr,
                             descr->top_item - page * descr->page_size, TRUE );
            break;
        case SB_PAGERIGHT:
            page = descr->width / descr->column_width;
            if (page < 1) page = 1;
            LISTBOX_SetTopItem( descr,
                             descr->top_item + page * descr->page_size, TRUE );
            break;
        case SB_THUMBPOSITION:
            LISTBOX_SetTopItem( descr, pos*descr->page_size, TRUE );
            break;
        case SB_THUMBTRACK:
            info.cbSize = sizeof(info);
            info.fMask  = SIF_TRACKPOS;
#ifdef __REACTOS__
            GetScrollInfo( descr->self, SB_HORZ, &info );
#else
            GetScrollInfo( descr->self, SB_VERT, &info );
#endif
            LISTBOX_SetTopItem( descr, info.nTrackPos*descr->page_size,
                                TRUE );
            break;
        case SB_LEFT:
            LISTBOX_SetTopItem( descr, 0, TRUE );
            break;
        case SB_RIGHT:
            LISTBOX_SetTopItem( descr, descr->nb_items, TRUE );
            break;
        }
    }
    else if (descr->horz_extent)
    {
        switch(scrollReq)
        {
        case SB_LINELEFT:
            LISTBOX_SetHorizontalPos( descr, descr->horz_pos - 1 );
            break;
        case SB_LINERIGHT:
            LISTBOX_SetHorizontalPos( descr, descr->horz_pos + 1 );
            break;
        case SB_PAGELEFT:
            LISTBOX_SetHorizontalPos( descr,
                                      descr->horz_pos - descr->width );
            break;
        case SB_PAGERIGHT:
            LISTBOX_SetHorizontalPos( descr,
                                      descr->horz_pos + descr->width );
            break;
        case SB_THUMBPOSITION:
            LISTBOX_SetHorizontalPos( descr, pos );
            break;
        case SB_THUMBTRACK:
            info.cbSize = sizeof(info);
            info.fMask = SIF_TRACKPOS;
            GetScrollInfo( descr->self, SB_HORZ, &info );
            LISTBOX_SetHorizontalPos( descr, info.nTrackPos );
            break;
        case SB_LEFT:
            LISTBOX_SetHorizontalPos( descr, 0 );
            break;
        case SB_RIGHT:
            LISTBOX_SetHorizontalPos( descr,
                                      descr->horz_extent - descr->width );
            break;
        }
    }
    return 0;
}

LISTBOX_HandleKeyDown()

static LRESULT LISTBOX_HandleKeyDown ( LB_DESCR *  descr, DWORD  key  )

static

Definition at line 2357 of file listbox.c.

{
    INT caret = -1;
    BOOL bForceSelection = TRUE; /* select item pointed to by focus_item */
    if ((IS_MULTISELECT(descr)) || (descr->selected_item == descr->focus_item))
        bForceSelection = FALSE; /* only for single select list */
 
    if (descr->style & LBS_WANTKEYBOARDINPUT)
    {
        caret = SendMessageW( descr->owner, WM_VKEYTOITEM,
                                MAKEWPARAM(LOWORD(key), descr->focus_item),
                                (LPARAM)descr->self );
        if (caret == -2) return 0;
    }
    if (caret == -1) switch(key)
    {
    case VK_LEFT:
        if (descr->style & LBS_MULTICOLUMN)
        {
            bForceSelection = FALSE;
            if (descr->focus_item >= descr->page_size)
                caret = descr->focus_item - descr->page_size;
            break;
        }
        /* fall through */
    case VK_UP:
        caret = descr->focus_item - 1;
        if (caret < 0) caret = 0;
        break;
    case VK_RIGHT:
        if (descr->style & LBS_MULTICOLUMN)
        {
            bForceSelection = FALSE;
            if (descr->focus_item + descr->page_size < descr->nb_items)
                caret = descr->focus_item + descr->page_size;
            break;
        }
        /* fall through */
    case VK_DOWN:
        caret = descr->focus_item + 1;
        if (caret >= descr->nb_items) caret = descr->nb_items - 1;
        break;
 
    case VK_PRIOR:
        if (descr->style & LBS_MULTICOLUMN)
        {
            INT page = descr->width / descr->column_width;
            if (page < 1) page = 1;
            caret = descr->focus_item - (page * descr->page_size) + 1;
        }
        else caret = descr->focus_item-LISTBOX_GetCurrentPageSize(descr) + 1;
        if (caret < 0) caret = 0;
        break;
    case VK_NEXT:
        if (descr->style & LBS_MULTICOLUMN)
        {
            INT page = descr->width / descr->column_width;
            if (page < 1) page = 1;
            caret = descr->focus_item + (page * descr->page_size) - 1;
        }
        else caret = descr->focus_item + LISTBOX_GetCurrentPageSize(descr) - 1;
        if (caret >= descr->nb_items) caret = descr->nb_items - 1;
        break;
    case VK_HOME:
        caret = 0;
        break;
    case VK_END:
        caret = descr->nb_items - 1;
        break;
    case VK_SPACE:
        if (descr->style & LBS_EXTENDEDSEL) caret = descr->focus_item;
        else if (descr->style & LBS_MULTIPLESEL)
        {
            LISTBOX_SetSelection( descr, descr->focus_item,
                                  !descr->items[descr->focus_item].selected,
                                  (descr->style & LBS_NOTIFY) != 0 );
        }
        break;
    default:
        bForceSelection = FALSE;
    }
    if (bForceSelection) /* focused item is used instead of key */
        caret = descr->focus_item;
    if (caret >= 0)
    {
        if (((descr->style & LBS_EXTENDEDSEL) &&
            !(GetKeyState( VK_SHIFT ) & 0x8000)) ||
            !IS_MULTISELECT(descr))
            descr->anchor_item = caret;
        LISTBOX_MoveCaret( descr, caret, TRUE );
 
        if (descr->style & LBS_MULTIPLESEL)
            descr->selected_item = caret;
        else
            LISTBOX_SetSelection( descr, caret, TRUE, FALSE);
        if (descr->style & LBS_NOTIFY)
        {
            if (descr->lphc && IsWindowVisible( descr->self ))
            {
                /* make sure that combo parent doesn't hide us */
                descr->lphc->wState |= CBF_NOROLLUP;
            }
            if (descr->nb_items) SEND_NOTIFICATION( descr, LBN_SELCHANGE );
        }
    }
    return 0;
}

LISTBOX_HandleLButtonDown()

static LRESULT LISTBOX_HandleLButtonDown ( LB_DESCR *  descr, DWORD  keys, INT  x, INT  y  )

static

Definition at line 2054 of file listbox.c.

{
    INT index = LISTBOX_GetItemFromPoint( descr, x, y );
 
    TRACE("[%p]: lbuttondown %d,%d item %d, focus item %d\n",
          descr->self, x, y, index, descr->focus_item);
 
    if (!descr->caret_on && (descr->in_focus)) return 0;
 
    if (!descr->in_focus)
    {
        if( !descr->lphc ) SetFocus( descr->self );
        else SetFocus( (descr->lphc->hWndEdit) ? descr->lphc->hWndEdit : descr->lphc->self );
    }
 
    if (index == -1) return 0;
 
    if (!descr->lphc)
    {
        if (descr->style & LBS_NOTIFY )
            SendMessageW( descr->owner, WM_LBTRACKPOINT, index,
                            MAKELPARAM( x, y ) );
    }
 
    descr->captured = TRUE;
    SetCapture( descr->self );
 
    if (descr->style & (LBS_EXTENDEDSEL | LBS_MULTIPLESEL))
    {
        /* we should perhaps make sure that all items are deselected
           FIXME: needed for !LBS_EXTENDEDSEL, too ?
           if (!(keys & (MK_SHIFT|MK_CONTROL)))
           LISTBOX_SetSelection( descr, -1, FALSE, FALSE);
        */
 
        if (!(keys & MK_SHIFT)) descr->anchor_item = index;
        if (keys & MK_CONTROL)
        {
            LISTBOX_SetCaretIndex( descr, index, FALSE );
            LISTBOX_SetSelection( descr, index,
                                  !descr->items[index].selected,
                                  (descr->style & LBS_NOTIFY) != 0);
        }
        else
        {
            LISTBOX_MoveCaret( descr, index, FALSE );
 
            if (descr->style & LBS_EXTENDEDSEL)
            {
                LISTBOX_SetSelection( descr, index,
                               descr->items[index].selected,
                              (descr->style & LBS_NOTIFY) != 0 );
            }
            else
            {
                LISTBOX_SetSelection( descr, index,
                               !descr->items[index].selected,
                              (descr->style & LBS_NOTIFY) != 0 );
            }
        }
    }
    else
    {
        descr->anchor_item = index;
        LISTBOX_MoveCaret( descr, index, FALSE );
        LISTBOX_SetSelection( descr, index,
                              TRUE, (descr->style & LBS_NOTIFY) != 0 );
    }
 
    if (!descr->lphc)
    {   //  See rev 40864 use Ptr for 64 bit.
        if (GetWindowLongPtrW( descr->self, GWL_EXSTYLE ) & WS_EX_DRAGDETECT)
        {
            POINT pt;
 
        pt.x = x;
        pt.y = y;
 
            if (DragDetect( descr->self, pt ))
                SendMessageW( descr->owner, WM_BEGINDRAG, 0, 0 );
        }
    }
    return 0;
}

LISTBOX_HandleLButtonDownCombo()

static LRESULT LISTBOX_HandleLButtonDownCombo ( LB_DESCR *  descr, UINT  msg, DWORD  keys, INT  x, INT  y  )

static

Definition at line 2159 of file listbox.c.

{
    RECT clientRect, screenRect;
    POINT mousePos;
 
    mousePos.x = x;
    mousePos.y = y;
 
    GetClientRect(descr->self, &clientRect);
 
    if(PtInRect(&clientRect, mousePos))
    {
       /* MousePos is in client, resume normal processing */
        if (msg == WM_LBUTTONDOWN)
        {
           descr->lphc->droppedIndex = descr->nb_items ? descr->selected_item : -1;
           return LISTBOX_HandleLButtonDown( descr, keys, x, y);
        }
        else if (descr->style & LBS_NOTIFY)
            SEND_NOTIFICATION( descr, LBN_DBLCLK );
    }
    else
    {
        POINT screenMousePos;
        HWND hWndOldCapture;
 
        /* Check the Non-Client Area */
        screenMousePos = mousePos;
        hWndOldCapture = GetCapture();
        ReleaseCapture();
        GetWindowRect(descr->self, &screenRect);
        ClientToScreen(descr->self, &screenMousePos);
 
        if(!PtInRect(&screenRect, screenMousePos))
        {
            LISTBOX_SetCaretIndex( descr, descr->lphc->droppedIndex, FALSE );
            LISTBOX_SetSelection( descr, descr->lphc->droppedIndex, FALSE, FALSE );
            COMBO_FlipListbox( descr->lphc, FALSE, FALSE );
        }
        else
        {
            /* Check to see the NC is a scrollbar */
            INT nHitTestType=0;
            LONG style = GetWindowLongPtrW( descr->self, GWL_STYLE );
            /* Check Vertical scroll bar */
            if (style & WS_VSCROLL)
            {
                clientRect.right += GetSystemMetrics(SM_CXVSCROLL);
                if (PtInRect( &clientRect, mousePos ))
                    nHitTestType = HTVSCROLL;
            }
              /* Check horizontal scroll bar */
            if (style & WS_HSCROLL)
            {
                clientRect.bottom += GetSystemMetrics(SM_CYHSCROLL);
                if (PtInRect( &clientRect, mousePos ))
                    nHitTestType = HTHSCROLL;
            }
            /* Windows sends this message when a scrollbar is clicked
             */
 
            if(nHitTestType != 0)
            {
                SendMessageW(descr->self, WM_NCLBUTTONDOWN, nHitTestType,
                             MAKELONG(screenMousePos.x, screenMousePos.y));
            }
            /* Resume the Capture after scrolling is complete
             */
            if(hWndOldCapture != 0)
                SetCapture(hWndOldCapture);
        }
    }
    return 0;
}

LISTBOX_HandleLButtonUp()

static LRESULT LISTBOX_HandleLButtonUp ( LB_DESCR *  descr )

static

Definition at line 2237 of file listbox.c.

{
    if (LISTBOX_Timer != LB_TIMER_NONE)
        KillSystemTimer( descr->self, LB_TIMER_ID );
    LISTBOX_Timer = LB_TIMER_NONE;
    if (descr->captured)
    {
        descr->captured = FALSE;
        if (GetCapture() == descr->self) ReleaseCapture();
        if ((descr->style & LBS_NOTIFY) && descr->nb_items)
            SEND_NOTIFICATION( descr, LBN_SELCHANGE );
    }
    return 0;
}

LISTBOX_HandleMouseMove()

static void LISTBOX_HandleMouseMove ( LB_DESCR *  descr, INT  x, INT  y  )

static

Definition at line 2309 of file listbox.c.

{
    INT index;
    TIMER_DIRECTION dir = LB_TIMER_NONE;
 
    if (!descr->captured) return;
 
    if (descr->style & LBS_MULTICOLUMN)
    {
        if (y < 0) y = 0;
        else if (y >= descr->item_height * descr->page_size)
            y = descr->item_height * descr->page_size - 1;
 
        if (x < 0)
        {
            dir = LB_TIMER_LEFT;
            x = 0;
        }
        else if (x >= descr->width)
        {
            dir = LB_TIMER_RIGHT;
            x = descr->width - 1;
        }
    }
    else
    {
        if (y < 0) dir = LB_TIMER_UP;  /* above */
        else if (y >= descr->height) dir = LB_TIMER_DOWN;  /* below */
    }
 
    index = LISTBOX_GetItemFromPoint( descr, x, y );
    if (index == -1) index = descr->focus_item;
    if (!LISTBOX_HandleTimer( descr, index, dir )) dir = LB_TIMER_NONE;
 
    /* Start/stop the system timer */
 
    if (dir != LB_TIMER_NONE)
        SetSystemTimer( descr->self, LB_TIMER_ID, LB_SCROLL_TIMEOUT, NULL);
    else if (LISTBOX_Timer != LB_TIMER_NONE)
        KillSystemTimer( descr->self, LB_TIMER_ID );
    LISTBOX_Timer = dir;
}

LISTBOX_HandleMouseWheel()

static LRESULT LISTBOX_HandleMouseWheel ( LB_DESCR *  descr, SHORT  delta  )

static

Definition at line 2023 of file listbox.c.

{
    UINT pulScrollLines = 3;
 
    SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
 
    /* if scrolling changes direction, ignore left overs */
    if ((delta < 0 && descr->wheel_remain < 0) ||
        (delta > 0 && descr->wheel_remain > 0))
        descr->wheel_remain += delta;
    else
        descr->wheel_remain = delta;
 
    if (descr->wheel_remain && pulScrollLines)
    {
        int cLineScroll;
        pulScrollLines = min((UINT) descr->page_size, pulScrollLines);
        cLineScroll = pulScrollLines * (float)descr->wheel_remain / WHEEL_DELTA;
        descr->wheel_remain -= WHEEL_DELTA * cLineScroll / (int)pulScrollLines;
#ifdef __REACTOS__
        if (cLineScroll < 0)
            cLineScroll -= descr->page_size;
#endif
        LISTBOX_SetTopItem( descr, descr->top_item - cLineScroll, TRUE );
    }
    return 0;
}

LISTBOX_HandleSystemTimer()

static LRESULT LISTBOX_HandleSystemTimer ( LB_DESCR *  descr )

static

Definition at line 2293 of file listbox.c.

{
    if (!LISTBOX_HandleTimer( descr, descr->focus_item, LISTBOX_Timer ))
    {
        KillSystemTimer( descr->self, LB_TIMER_ID );
        LISTBOX_Timer = LB_TIMER_NONE;
    }
    return 0;
}

LISTBOX_HandleTimer()

static LRESULT LISTBOX_HandleTimer ( LB_DESCR *  descr, INT  index, TIMER_DIRECTION  dir  )

static

Definition at line 2259 of file listbox.c.

{
    switch(dir)
    {
    case LB_TIMER_UP:
        if (descr->top_item) index = descr->top_item - 1;
        else index = 0;
        break;
    case LB_TIMER_LEFT:
        if (descr->top_item) index -= descr->page_size;
        break;
    case LB_TIMER_DOWN:
        index = descr->top_item + LISTBOX_GetCurrentPageSize( descr );
        if (index == descr->focus_item) index++;
        if (index >= descr->nb_items) index = descr->nb_items - 1;
        break;
    case LB_TIMER_RIGHT:
        if (index + descr->page_size < descr->nb_items)
            index += descr->page_size;
        break;
    case LB_TIMER_NONE:
        break;
    }
    if (index == descr->focus_item) return FALSE;
    LISTBOX_MoveCaret( descr, index, FALSE );
    return TRUE;
}

LISTBOX_HandleVScroll()

static LRESULT LISTBOX_HandleVScroll ( LB_DESCR *  descr, WORD  scrollReq, WORD  pos  )

static

Definition at line 1889 of file listbox.c.

{
    SCROLLINFO info;
 
    if (descr->style & LBS_MULTICOLUMN) return 0;
    switch(scrollReq)
    {
    case SB_LINEUP:
        LISTBOX_SetTopItem( descr, descr->top_item - 1, TRUE );
        break;
    case SB_LINEDOWN:
        LISTBOX_SetTopItem( descr, descr->top_item + 1, TRUE );
        break;
    case SB_PAGEUP:
        LISTBOX_SetTopItem( descr, descr->top_item -
                            LISTBOX_GetCurrentPageSize( descr ), TRUE );
        break;
    case SB_PAGEDOWN:
        LISTBOX_SetTopItem( descr, descr->top_item +
                            LISTBOX_GetCurrentPageSize( descr ), TRUE );
        break;
    case SB_THUMBPOSITION:
        LISTBOX_SetTopItem( descr, pos, TRUE );
        break;
    case SB_THUMBTRACK:
        info.cbSize = sizeof(info);
        info.fMask = SIF_TRACKPOS;
        GetScrollInfo( descr->self, SB_VERT, &info );
        LISTBOX_SetTopItem( descr, info.nTrackPos, TRUE );
        break;
    case SB_TOP:
        LISTBOX_SetTopItem( descr, 0, TRUE );
        break;
    case SB_BOTTOM:
        LISTBOX_SetTopItem( descr, descr->nb_items, TRUE );
        break;
    }
    return 0;
}

LISTBOX_InitStorage()

static LRESULT LISTBOX_InitStorage ( LB_DESCR *  descr, INT  nb_items  )

static

Definition at line 717 of file listbox.c.

{
    LB_ITEMDATA *item;
 
    nb_items += LB_ARRAY_GRANULARITY - 1;
    nb_items -= (nb_items % LB_ARRAY_GRANULARITY);
    if (descr->items) {
        nb_items += HeapSize( GetProcessHeap(), 0, descr->items ) / sizeof(*item);
    item = HeapReAlloc( GetProcessHeap(), 0, descr->items,
                              nb_items * sizeof(LB_ITEMDATA));
    }
    else {
    item = HeapAlloc( GetProcessHeap(), 0,
                              nb_items * sizeof(LB_ITEMDATA));
    }
 
    if (!item)
    {
        SEND_NOTIFICATION( descr, LBN_ERRSPACE );
        return LB_ERRSPACE;
    }
    descr->items = item;
    return LB_OKAY;
}

LISTBOX_InsertItem()

static LRESULT LISTBOX_InsertItem ( LB_DESCR *  descr, INT  index, LPWSTR  str, ULONG_PTR  data  )

static

Definition at line 1528 of file listbox.c.

{
    LB_ITEMDATA *item;
    INT max_items;
    INT oldfocus = descr->focus_item;
 
    if (index == -1) index = descr->nb_items;
    else if ((index < 0) || (index > descr->nb_items)) return LB_ERR;
    if (!descr->items) max_items = 0;
    else max_items = HeapSize( GetProcessHeap(), 0, descr->items ) / sizeof(*item);
    if (descr->nb_items == max_items)
    {
        /* We need to grow the array */
        max_items += LB_ARRAY_GRANULARITY;
    if (descr->items)
            item = HeapReAlloc( GetProcessHeap(), 0, descr->items,
                                  max_items * sizeof(LB_ITEMDATA) );
    else
        item = HeapAlloc( GetProcessHeap(), 0,
                                  max_items * sizeof(LB_ITEMDATA) );
        if (!item)
        {
            SEND_NOTIFICATION( descr, LBN_ERRSPACE );
            return LB_ERRSPACE;
        }
        descr->items = item;
    }
 
    /* Insert the item structure */
 
    item = &descr->items[index];
    if (index < descr->nb_items)
        RtlMoveMemory( item + 1, item,
                       (descr->nb_items - index) * sizeof(LB_ITEMDATA) );
    item->str      = str;
    item->data     = data;
    item->height   = 0;
    item->selected = FALSE;
    descr->nb_items++;
 
    /* Get item height */
 
    if (descr->style & LBS_OWNERDRAWVARIABLE)
    {
        MEASUREITEMSTRUCT mis;
        UINT id = (UINT)GetWindowLongPtrW( descr->self, GWLP_ID );
 
        mis.CtlType    = ODT_LISTBOX;
        mis.CtlID      = id;
        mis.itemID     = index;
        mis.itemData   = descr->items[index].data;
        mis.itemHeight = descr->item_height;
        SendMessageW( descr->owner, WM_MEASUREITEM, id, (LPARAM)&mis );
        item->height = mis.itemHeight ? mis.itemHeight : 1;
        TRACE("[%p]: measure item %d (%s) = %d\n",
              descr->self, index, str ? debugstr_w(str) : "", item->height );
    }
 
    /* Repaint the items */
 
    LISTBOX_UpdateScroll( descr );
    LISTBOX_InvalidateItems( descr, index );
 
    /* Move selection and focused item */
    /* If listbox was empty, set focus to the first item */
    if (descr->nb_items == 1)
         LISTBOX_SetCaretIndex( descr, 0, FALSE );
    /* single select don't change selection index in win31 */
    else if ((ISWIN31) && !(IS_MULTISELECT(descr)))
    {
        descr->selected_item++;
        LISTBOX_SetSelection( descr, descr->selected_item-1, TRUE, FALSE );
    }
    else
    {
        if (index <= descr->selected_item)
        {
            descr->selected_item++;
            descr->focus_item = oldfocus; /* focus not changed */
        }
    }
    return LB_OKAY;
}

LISTBOX_InsertString()

static LRESULT LISTBOX_InsertString ( LB_DESCR *  descr, INT  index, LPCWSTR  str  )

static

Definition at line 1617 of file listbox.c.

{
    LPWSTR new_str = NULL;
    ULONG_PTR data = 0;
    LRESULT ret;
 
    if (HAS_STRINGS(descr))
    {
        static const WCHAR empty_stringW[] = { 0 };
        if (!str) str = empty_stringW;
        if (!(new_str = HeapAlloc( GetProcessHeap(), 0, (strlenW(str) + 1) * sizeof(WCHAR) )))
        {
            SEND_NOTIFICATION( descr, LBN_ERRSPACE );
            return LB_ERRSPACE;
        }
        strcpyW(new_str, str);
    }
    else data = (ULONG_PTR)str;
 
    if (index == -1) index = descr->nb_items;
    if ((ret = LISTBOX_InsertItem( descr, index, new_str, data )) != 0)
    {
        HeapFree( GetProcessHeap(), 0, new_str );
        return ret;
    }
 
    TRACE("[%p]: added item %d %s\n",
          descr->self, index, HAS_STRINGS(descr) ? debugstr_w(new_str) : "" );
    return index;
}

LISTBOX_InvalidateItemRect()

static void LISTBOX_InvalidateItemRect ( LB_DESCR *  descr, INT  index  )

static

Definition at line 1169 of file listbox.c.

{
    RECT rect;
 
    if (LISTBOX_GetItemRect( descr, index, &rect ) == 1)
        InvalidateRect( descr->self, &rect, TRUE );
}

LISTBOX_InvalidateItems()

static void LISTBOX_InvalidateItems ( LB_DESCR *  descr, INT  index  )

static

Definition at line 1145 of file listbox.c.

{
    RECT rect;
 
    if (LISTBOX_GetItemRect( descr, index, &rect ) == 1)
    {
        if (descr->style & LBS_NOREDRAW)
        {
            descr->style |= LBS_DISPLAYCHANGED;
            return;
        }
        rect.bottom = descr->height;
        InvalidateRect( descr->self, &rect, TRUE );
        if (descr->style & LBS_MULTICOLUMN)
        {
            /* Repaint the other columns */
            rect.left  = rect.right;
            rect.right = descr->width;
            rect.top   = 0;
            InvalidateRect( descr->self, &rect, TRUE );
        }
    }
}

LISTBOX_lstrcmpiW()

static INT LISTBOX_lstrcmpiW ( LCID  lcid, LPCWSTR  str1, LPCWSTR  str2  )

inlinestatic

Definition at line 828 of file listbox.c.

{
    INT ret = CompareStringW( lcid, NORM_IGNORECASE, str1, -1, str2, -1 );
    if (ret == CSTR_LESS_THAN)
        return -1;
    if (ret == CSTR_EQUAL)
        return 0;
    if (ret == CSTR_GREATER_THAN)
        return 1;
    return -1;
}

LISTBOX_MakeItemVisible()

static void LISTBOX_MakeItemVisible ( LB_DESCR *  descr, INT  index, BOOL  fully  )

static

Definition at line 1334 of file listbox.c.

{
    INT top;
 
    TRACE("current top item %d, index %d, fully %d\n", descr->top_item, index, fully);
 
    if (index <= descr->top_item) top = index;
    else if (descr->style & LBS_MULTICOLUMN)
    {
        INT cols = descr->width;
        if (!fully) cols += descr->column_width - 1;
        if (cols >= descr->column_width) cols /= descr->column_width;
        else cols = 1;
        if (index < descr->top_item + (descr->page_size * cols)) return;
        top = index - descr->page_size * (cols - 1);
    }
    else if (descr->style & LBS_OWNERDRAWVARIABLE)
    {
        INT height = fully ? descr->items[index].height : 1;
        for (top = index; top > descr->top_item; top--)
            if ((height += descr->items[top-1].height) > descr->height) break;
    }
    else
    {
        if (index < descr->top_item + descr->page_size) return;
        if (!fully && (index == descr->top_item + descr->page_size) &&
            (descr->height > (descr->page_size * descr->item_height))) return;
        top = index - descr->page_size + 1;
    }
    LISTBOX_SetTopItem( descr, top, TRUE );
}

LISTBOX_MoveCaret()

static void LISTBOX_MoveCaret ( LB_DESCR *  descr, INT  index, BOOL  fully_visible  )

static

Definition at line 1481 of file listbox.c.

{
    TRACE("old focus %d, index %d\n", descr->focus_item, index);
 
    if ((index <  0) || (index >= descr->nb_items))
        return;
 
    /* Important, repaint needs to be done in this order if
       you want to mimic Windows behavior:
       1. Remove the focus and paint the item
       2. Remove the selection and paint the item(s)
       3. Set the selection and repaint the item(s)
       4. Set the focus to 'index' and repaint the item */
 
    /* 1. remove the focus and repaint the item */
    LISTBOX_DrawFocusRect( descr, FALSE );
 
    /* 2. then turn off the previous selection */
    /* 3. repaint the new selected item */
    if (descr->style & LBS_EXTENDEDSEL)
    {
        if (descr->anchor_item != -1)
        {
            INT first = min( index, descr->anchor_item );
            INT last  = max( index, descr->anchor_item );
            if (first > 0)
                LISTBOX_SelectItemRange( descr, 0, first - 1, FALSE );
            LISTBOX_SelectItemRange( descr, last + 1, -1, FALSE );
            LISTBOX_SelectItemRange( descr, first, last, TRUE );
        }
    }
    else if (!(descr->style & LBS_MULTIPLESEL))
    {
        /* Set selection to new caret item */
        LISTBOX_SetSelection( descr, index, TRUE, FALSE );
    }
 
    /* 4. repaint the new item with the focus */
    descr->focus_item = index;
    LISTBOX_MakeItemVisible( descr, index, fully_visible );
    LISTBOX_DrawFocusRect( descr, TRUE );
}

LISTBOX_Paint()

static LRESULT LISTBOX_Paint ( LB_DESCR *  descr, HDC  hdc  )

static

Definition at line 1026 of file listbox.c.

{
    INT i, col_pos = descr->page_size - 1;
    RECT rect;
    RECT focusRect = {-1, -1, -1, -1};
    HFONT oldFont = 0;
    HBRUSH hbrush, oldBrush = 0;
 
    if (descr->style & LBS_NOREDRAW) return 0;
 
    SetRect( &rect, 0, 0, descr->width, descr->height );
    if (descr->style & LBS_MULTICOLUMN)
        rect.right = rect.left + descr->column_width;
    else if (descr->horz_pos)
    {
        SetWindowOrgEx( hdc, descr->horz_pos, 0, NULL );
        rect.right += descr->horz_pos;
    }
 
    if (descr->font) oldFont = SelectObject( hdc, descr->font );
#ifdef __REACTOS__
    hbrush = GetControlColor( descr->owner, descr->self, hdc, WM_CTLCOLORLISTBOX);
#else
    hbrush = (HBRUSH)SendMessageW( descr->owner, WM_CTLCOLORLISTBOX,
                   (WPARAM)hdc, (LPARAM)descr->self );
#endif
    if (hbrush) oldBrush = SelectObject( hdc, hbrush );
    if (!IsWindowEnabled(descr->self)) SetTextColor( hdc, GetSysColor( COLOR_GRAYTEXT ) );
 
    if (!descr->nb_items && (descr->focus_item != -1) && descr->caret_on &&
        (descr->in_focus))
    {
        /* Special case for empty listbox: paint focus rect */
        rect.bottom = rect.top + descr->item_height;
        ExtTextOutW( hdc, 0, 0, ETO_OPAQUE | ETO_CLIPPED,
                     &rect, NULL, 0, NULL );
        LISTBOX_PaintItem( descr, hdc, &rect, descr->focus_item, ODA_FOCUS, FALSE );
        rect.top = rect.bottom;
    }
 
    /* Paint all the item, regarding the selection
       Focus state will be painted after  */
 
    for (i = descr->top_item; i < descr->nb_items; i++)
    {
        if (!(descr->style & LBS_OWNERDRAWVARIABLE))
            rect.bottom = rect.top + descr->item_height;
        else
            rect.bottom = rect.top + descr->items[i].height;
 
        /* keep the focus rect, to paint the focus item after */
        if (i == descr->focus_item)
            focusRect = rect;
    
        LISTBOX_PaintItem( descr, hdc, &rect, i, ODA_DRAWENTIRE, TRUE );
        rect.top = rect.bottom;
 
        if ((descr->style & LBS_MULTICOLUMN) && !col_pos)
        {
            if (!IS_OWNERDRAW(descr))
            {
                /* Clear the bottom of the column */
                if (rect.top < descr->height)
                {
                    rect.bottom = descr->height;
                    ExtTextOutW( hdc, 0, 0, ETO_OPAQUE | ETO_CLIPPED,
                                   &rect, NULL, 0, NULL );
                }
            }
 
            /* Go to the next column */
            rect.left += descr->column_width;
            rect.right += descr->column_width;
            rect.top = 0;
            col_pos = descr->page_size - 1;
        }
        else
        {
            col_pos--;
            if (rect.top >= descr->height) break;
        }
    }
 
    /* Paint the focus item now */
    if (focusRect.top != focusRect.bottom &&
        descr->caret_on && descr->in_focus)
        LISTBOX_PaintItem( descr, hdc, &focusRect, descr->focus_item, ODA_FOCUS, FALSE );
 
    if (!IS_OWNERDRAW(descr))
    {
        /* Clear the remainder of the client area */
        if (rect.top < descr->height)
        {
            rect.bottom = descr->height;
            ExtTextOutW( hdc, 0, 0, ETO_OPAQUE | ETO_CLIPPED,
                           &rect, NULL, 0, NULL );
        }
        if (rect.right < descr->width)
        {
            rect.left   = rect.right;
            rect.right  = descr->width;
            rect.top    = 0;
            rect.bottom = descr->height;
            ExtTextOutW( hdc, 0, 0, ETO_OPAQUE | ETO_CLIPPED,
                           &rect, NULL, 0, NULL );
        }
    }
    if (oldFont) SelectObject( hdc, oldFont );
    if (oldBrush) SelectObject( hdc, oldBrush );
    return 0;
}

LISTBOX_PaintItem()

static void LISTBOX_PaintItem ( LB_DESCR *  descr, HDC  hdc, const RECT *  rect, INT  index, UINT  action, BOOL  ignoreFocus  )

static

Definition at line 521 of file listbox.c.

{
    LB_ITEMDATA *item = NULL;
    if (index < descr->nb_items) item = &descr->items[index];
 
    if (IS_OWNERDRAW(descr))
    {
        DRAWITEMSTRUCT dis;
        RECT r;
        HRGN hrgn;
 
    if (!item)
    {
        if (action == ODA_FOCUS)
            { // REACTOS
               if (!(descr->UIState & UISF_HIDEFOCUS))
                   DrawFocusRect( hdc, rect );
            } //
        else
            ERR("called with an out of bounds index %d(%d) in owner draw, Not good.\n",index,descr->nb_items);
        return;
    }
 
        /* some programs mess with the clipping region when
        drawing the item, *and* restore the previous region
        after they are done, so a region has better to exist
        else everything ends clipped */
        GetClientRect(descr->self, &r);
        hrgn = set_control_clipping( hdc, &r );
 
        dis.CtlType      = ODT_LISTBOX;
        dis.CtlID        = GetWindowLongPtrW( descr->self, GWLP_ID );
        dis.hwndItem     = descr->self;
        dis.itemAction   = action;
        dis.hDC          = hdc;
        dis.itemID       = index;
        dis.itemState    = 0;
        if (item->selected) dis.itemState |= ODS_SELECTED;
        if (!ignoreFocus && (descr->focus_item == index) &&
            (descr->caret_on) &&
            (descr->in_focus)) dis.itemState |= ODS_FOCUS;
        if (!IsWindowEnabled(descr->self)) dis.itemState |= ODS_DISABLED;
        dis.itemData     = item->data;
        dis.rcItem       = *rect;
        TRACE("[%p]: drawitem %d (%s) action=%02x state=%02x rect=%s\n",
              descr->self, index, debugstr_w(item->str), action,
              dis.itemState, wine_dbgstr_rect(rect) );
        SendMessageW(descr->owner, WM_DRAWITEM, dis.CtlID, (LPARAM)&dis);
        SelectClipRgn( hdc, hrgn );
        if (hrgn) DeleteObject( hrgn );
    }
    else
    {
        COLORREF oldText = 0, oldBk = 0;
 
        if (action == ODA_FOCUS)
        {
            if (!(descr->UIState & UISF_HIDEFOCUS)) // REACTOS
                DrawFocusRect( hdc, rect );
            return;
        }
        if (item && item->selected)
        {
            oldBk = SetBkColor( hdc, GetSysColor( COLOR_HIGHLIGHT ) );
            oldText = SetTextColor( hdc, GetSysColor(COLOR_HIGHLIGHTTEXT));
        }
 
        TRACE("[%p]: painting %d (%s) action=%02x rect=%s\n",
              descr->self, index, item ? debugstr_w(item->str) : "", action,
              wine_dbgstr_rect(rect) );
        if (!item)
            ExtTextOutW( hdc, rect->left + 1, rect->top,
                           ETO_OPAQUE | ETO_CLIPPED, rect, NULL, 0, NULL );
        else if (!(descr->style & LBS_USETABSTOPS))
            ExtTextOutW( hdc, rect->left + 1, rect->top,
                         ETO_OPAQUE | ETO_CLIPPED, rect, item->str,
                         strlenW(item->str), NULL );
        else
    {
        /* Output empty string to paint background in the full width. */
            ExtTextOutW( hdc, rect->left + 1, rect->top,
                         ETO_OPAQUE | ETO_CLIPPED, rect, NULL, 0, NULL );
            TabbedTextOutW( hdc, rect->left + 1 , rect->top,
                            item->str, strlenW(item->str),
                            descr->nb_tabs, descr->tabs, 0);
    }
        if (item && item->selected)
        {
            SetBkColor( hdc, oldBk );
            SetTextColor( hdc, oldText );
        }
        if (!ignoreFocus && (descr->focus_item == index) &&
            (descr->caret_on) &&
            (descr->in_focus) &&
            !(descr->UIState & UISF_HIDEFOCUS)) DrawFocusRect( hdc, rect );
    }
}

LISTBOX_RemoveItem()

static LRESULT LISTBOX_RemoveItem ( LB_DESCR *  descr, INT  index  )

static

Definition at line 1690 of file listbox.c.

{
    LB_ITEMDATA *item;
    INT max_items;
 
    if ((index < 0) || (index >= descr->nb_items)) return LB_ERR;
 
    /* We need to invalidate the original rect instead of the updated one. */
    LISTBOX_InvalidateItems( descr, index );
 
    descr->nb_items--;
    LISTBOX_DeleteItem( descr, index );
 
    if (!descr->nb_items) return LB_OKAY;
 
    /* Remove the item */
 
    item = &descr->items[index];
    if (index < descr->nb_items)
        RtlMoveMemory( item, item + 1,
                       (descr->nb_items - index) * sizeof(LB_ITEMDATA) );
    if (descr->anchor_item == descr->nb_items) descr->anchor_item--;
 
    /* Shrink the item array if possible */
 
    max_items = HeapSize( GetProcessHeap(), 0, descr->items ) / sizeof(LB_ITEMDATA);
    if (descr->nb_items < max_items - 2*LB_ARRAY_GRANULARITY)
    {
        max_items -= LB_ARRAY_GRANULARITY;
        item = HeapReAlloc( GetProcessHeap(), 0, descr->items,
                            max_items * sizeof(LB_ITEMDATA) );
        if (item) descr->items = item;
    }
    /* Repaint the items */
 
    LISTBOX_UpdateScroll( descr );
    /* if we removed the scrollbar, reset the top of the list
      (correct for owner-drawn ???) */
    if (descr->nb_items == descr->page_size)
        LISTBOX_SetTopItem( descr, 0, TRUE );
 
    /* Move selection and focused item */
    if (!IS_MULTISELECT(descr))
    {
        if (index == descr->selected_item)
            descr->selected_item = -1;
        else if (index < descr->selected_item)
        {
            descr->selected_item--;
            if (ISWIN31) /* win 31 do not change the selected item number */
               LISTBOX_SetSelection( descr, descr->selected_item + 1, TRUE, FALSE);
        }
    }
 
    if (descr->focus_item >= descr->nb_items)
    {
          descr->focus_item = descr->nb_items - 1;
          if (descr->focus_item < 0) descr->focus_item = 0;
    }
    return LB_OKAY;
}

LISTBOX_RepaintItem()

static void LISTBOX_RepaintItem ( LB_DESCR *  descr, INT  index, UINT  action  )

static

Definition at line 653 of file listbox.c.

{
    HDC hdc;
    RECT rect;
    HFONT oldFont = 0;
    HBRUSH hbrush, oldBrush = 0;
 
    /* Do not repaint the item if the item is not visible */
    if (!IsWindowVisible(descr->self)) return;
    if (descr->style & LBS_NOREDRAW)
    {
        descr->style |= LBS_DISPLAYCHANGED;
        return;
    }
    if (LISTBOX_GetItemRect( descr, index, &rect ) != 1) return;
    if (!(hdc = GetDCEx( descr->self, 0, DCX_CACHE ))) return;
    if (descr->font) oldFont = SelectObject( hdc, descr->font );
#ifdef __REACTOS__
    hbrush = GetControlColor( descr->owner, descr->self, hdc, WM_CTLCOLORLISTBOX);
#else
    hbrush = (HBRUSH)SendMessageW( descr->owner, WM_CTLCOLORLISTBOX,
                   (WPARAM)hdc, (LPARAM)descr->self );
#endif
    if (hbrush) oldBrush = SelectObject( hdc, hbrush );
    if (!IsWindowEnabled(descr->self))
        SetTextColor( hdc, GetSysColor( COLOR_GRAYTEXT ) );
    SetWindowOrgEx( hdc, descr->horz_pos, 0, NULL );
    LISTBOX_PaintItem( descr, hdc, &rect, index, action, TRUE );
    if (oldFont) SelectObject( hdc, oldFont );
    if (oldBrush) SelectObject( hdc, oldBrush );
    ReleaseDC( descr->self, hdc );
}

LISTBOX_ResetContent()

static void LISTBOX_ResetContent ( LB_DESCR *  descr )

static

Definition at line 1756 of file listbox.c.

{
    INT i;
 
    for(i = descr->nb_items - 1; i>=0; i--) LISTBOX_DeleteItem( descr, i);
    HeapFree( GetProcessHeap(), 0, descr->items );
    descr->nb_items      = 0;
    descr->top_item      = 0;
    descr->selected_item = -1;
    descr->focus_item    = 0;
    descr->anchor_item   = -1;
    descr->items         = NULL;
}

LISTBOX_SelectItemRange()

static LRESULT LISTBOX_SelectItemRange ( LB_DESCR *  descr, INT  first, INT  last, BOOL  on  )

static

Definition at line 1398 of file listbox.c.

{
    INT i;
 
    /* A few sanity checks */
 
    if (descr->style & LBS_NOSEL) return LB_ERR;
    if (!(descr->style & LBS_MULTIPLESEL)) return LB_ERR;
 
    if (!descr->nb_items) return LB_OKAY;
 
    if (last == -1 || last >= descr->nb_items) last = descr->nb_items - 1;
    if (first < 0) first = 0;
    if (last < first) return LB_OKAY;
 
    if (on)  /* Turn selection on */
    {
        for (i = first; i <= last; i++)
        {
            if (descr->items[i].selected) continue;
            descr->items[i].selected = TRUE;
            LISTBOX_InvalidateItemRect(descr, i);
        }
    }
    else  /* Turn selection off */
    {
        for (i = first; i <= last; i++)
        {
            if (!descr->items[i].selected) continue;
            descr->items[i].selected = FALSE;
            LISTBOX_InvalidateItemRect(descr, i);
        }
    }
    return LB_OKAY;
}

LISTBOX_SetCaretIndex()

static LRESULT LISTBOX_SetCaretIndex ( LB_DESCR *  descr, INT  index, BOOL  fully_visible  )

static

Definition at line 1373 of file listbox.c.

{
    INT oldfocus = descr->focus_item;
 
    TRACE("old focus %d, index %d\n", oldfocus, index);
 
    if (descr->style & LBS_NOSEL) return LB_ERR;
    if ((index < 0) || (index >= descr->nb_items)) return LB_ERR;
    if (index == oldfocus) return LB_OKAY;
 
    LISTBOX_DrawFocusRect( descr, FALSE );
    descr->focus_item = index;
 
    LISTBOX_MakeItemVisible( descr, index, fully_visible );
    LISTBOX_DrawFocusRect( descr, TRUE );
 
    return LB_OKAY;
}

LISTBOX_SetColumnWidth()

static LRESULT LISTBOX_SetColumnWidth ( LB_DESCR *  descr, INT  width  )

static

Definition at line 1288 of file listbox.c.

{
    if (width == descr->column_width) return LB_OKAY;
    TRACE("[%p]: new column width = %d\n", descr->self, width );
    descr->column_width = width;
    LISTBOX_UpdatePage( descr );
    return LB_OKAY;
}

LISTBOX_SetCount()

static LRESULT LISTBOX_SetCount ( LB_DESCR *  descr, INT  count  )

static

Definition at line 1774 of file listbox.c.

{
    LRESULT ret;
 
    if (HAS_STRINGS(descr))
    {
        SetLastError(ERROR_SETCOUNT_ON_BAD_LB);
        return LB_ERR;
    }
 
    /* FIXME: this is far from optimal... */
    if (count > descr->nb_items)
    {
        while (count > descr->nb_items)
            if ((ret = LISTBOX_InsertString( descr, -1, 0 )) < 0)
                return ret;
    }
    else if (count < descr->nb_items)
    {
        while (count < descr->nb_items)
            if ((ret = LISTBOX_RemoveItem( descr, (descr->nb_items - 1) )) < 0)
                return ret;
    }
 
    InvalidateRect( descr->self, NULL, TRUE );
    return LB_OKAY;
}

LISTBOX_SetFont()

static INT LISTBOX_SetFont ( LB_DESCR *  descr, HFONT  font  )

static

Definition at line 1303 of file listbox.c.

{
    HDC hdc;
    HFONT oldFont = 0;
    const char *alphabet = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
    SIZE sz;
 
    descr->font = font;
 
    if (!(hdc = GetDCEx( descr->self, 0, DCX_CACHE )))
    {
        ERR("unable to get DC.\n" );
        return 16;
    }
    if (font) oldFont = SelectObject( hdc, font );
    GetTextExtentPointA( hdc, alphabet, 52, &sz);
    if (oldFont) SelectObject( hdc, oldFont );
    ReleaseDC( descr->self, hdc );
 
    descr->avg_char_width = (sz.cx / 26 + 1) / 2;
    if (!IS_OWNERDRAW(descr))
        LISTBOX_SetItemHeight( descr, 0, sz.cy, FALSE );
    return sz.cy;
}

LISTBOX_SetHorizontalExtent()

static LRESULT LISTBOX_SetHorizontalExtent ( LB_DESCR *  descr, INT  extent  )

static

Definition at line 1262 of file listbox.c.

{
    if (descr->style & LBS_MULTICOLUMN)
        return LB_OKAY;
    if (extent == descr->horz_extent) return LB_OKAY;
    TRACE("[%p]: new horz extent = %d\n", descr->self, extent );
    descr->horz_extent = extent;
    if (descr->style & WS_HSCROLL) {
        SCROLLINFO info;
        info.cbSize = sizeof(info);
        info.nMin  = 0;
        info.nMax = descr->horz_extent ? descr->horz_extent - 1 : 0;
        info.fMask = SIF_RANGE;
        if (descr->style & LBS_DISABLENOSCROLL)
            info.fMask |= SIF_DISABLENOSCROLL;
        SetScrollInfo( descr->self, SB_HORZ, &info, TRUE );
    }
    if (descr->horz_pos > extent - descr->width)
        LISTBOX_SetHorizontalPos( descr, extent - descr->width );
    return LB_OKAY;
}

LISTBOX_SetHorizontalPos()

static void LISTBOX_SetHorizontalPos ( LB_DESCR *  descr, INT  pos  )

static

Definition at line 1234 of file listbox.c.

{
    INT diff;
 
    if (pos > descr->horz_extent - descr->width)
        pos = descr->horz_extent - descr->width;
    if (pos < 0) pos = 0;
    if (!(diff = descr->horz_pos - pos)) return;
    TRACE("[%p]: new horz pos = %d\n", descr->self, pos );
    descr->horz_pos = pos;
    LISTBOX_UpdateScroll( descr );
    if (abs(diff) < descr->width)
    {
        RECT rect;
        /* Invalidate the focused item so it will be repainted correctly */
        if (LISTBOX_GetItemRect( descr, descr->focus_item, &rect ) == 1)
            InvalidateRect( descr->self, &rect, TRUE );
        ScrollWindowEx( descr->self, diff, 0, NULL, NULL, 0, NULL,
                          SW_INVALIDATE | SW_ERASE | SW_SCROLLCHILDREN );
    }
    else
        InvalidateRect( descr->self, NULL, TRUE );
}

LISTBOX_SetItemHeight()

static LRESULT LISTBOX_SetItemHeight ( LB_DESCR *  descr, INT  index, INT  height, BOOL  repaint  )

static

Definition at line 1198 of file listbox.c.

{
    if (height > MAXBYTE)
        return -1;
 
    if (!height) height = 1;
 
    if (descr->style & LBS_OWNERDRAWVARIABLE)
    {
        if ((index < 0) || (index >= descr->nb_items))
        {
            SetLastError(ERROR_INVALID_INDEX);
            return LB_ERR;
        }
        TRACE("[%p]: item %d height = %d\n", descr->self, index, height );
        descr->items[index].height = height;
        LISTBOX_UpdateScroll( descr );
    if (repaint)
        LISTBOX_InvalidateItems( descr, index );
    }
    else if (height != descr->item_height)
    {
        TRACE("[%p]: new height = %d\n", descr->self, height );
        descr->item_height = height;
        LISTBOX_UpdatePage( descr );
        LISTBOX_UpdateScroll( descr );
    if (repaint)
        InvalidateRect( descr->self, 0, TRUE );
    }
    return LB_OKAY;
}

LISTBOX_SetRedraw()

static void LISTBOX_SetRedraw ( LB_DESCR *  descr, BOOL  on  )

static

Definition at line 626 of file listbox.c.

{
    if (on)
    {
        if (!(descr->style & LBS_NOREDRAW)) return;
        descr->style &= ~LBS_NOREDRAW;
        if (descr->style & LBS_DISPLAYCHANGED)
        {     /* page was changed while setredraw false, refresh automatically */
            InvalidateRect(descr->self, NULL, TRUE);
            if ((descr->top_item + descr->page_size) > descr->nb_items)
            {      /* reset top of page if less than number of items/page */
                descr->top_item = descr->nb_items - descr->page_size;
                if (descr->top_item < 0) descr->top_item = 0;
            }
            descr->style &= ~LBS_DISPLAYCHANGED;
        }
        LISTBOX_UpdateScroll( descr );
    }
    else descr->style |= LBS_NOREDRAW;
}

LISTBOX_SetSelection()

static LRESULT LISTBOX_SetSelection ( LB_DESCR *  descr, INT  index, BOOL  on, BOOL  send_notify  )

static

Definition at line 1438 of file listbox.c.

{
    TRACE( "cur_sel=%d index=%d notify=%s\n",
           descr->selected_item, index, send_notify ? "YES" : "NO" );
 
    if (descr->style & LBS_NOSEL)
    {
        descr->selected_item = index;
        return LB_ERR;
    }
    if ((index < -1) || (index >= descr->nb_items)) return LB_ERR;
    if (descr->style & LBS_MULTIPLESEL)
    {
        if (index == -1)  /* Select all items */
            return LISTBOX_SelectItemRange( descr, 0, descr->nb_items, on );
        else  /* Only one item */
            return LISTBOX_SelectItemRange( descr, index, index, on );
    }
    else
    {
        INT oldsel = descr->selected_item;
        if (index == oldsel) return LB_OKAY;
        if (oldsel != -1) descr->items[oldsel].selected = FALSE;
        if (index != -1) descr->items[index].selected = TRUE;
        if (oldsel != -1) LISTBOX_RepaintItem( descr, oldsel, ODA_SELECT );
        descr->selected_item = index;
        if (index != -1) LISTBOX_RepaintItem( descr, index, ODA_SELECT );
        if (send_notify && descr->nb_items) SEND_NOTIFICATION( descr,
                               (index != -1) ? LBN_SELCHANGE : LBN_SELCANCEL );
    else
        if( descr->lphc ) /* set selection change flag for parent combo */
        descr->lphc->wState |= CBF_SELCHANGE;
    }
    return LB_OKAY;
}

LISTBOX_SetTabStops()

static BOOL LISTBOX_SetTabStops ( LB_DESCR *  descr, INT  count, LPINT  tabs  )

static

Definition at line 746 of file listbox.c.

{
    INT i;
 
    if (!(descr->style & LBS_USETABSTOPS))
    {
        SetLastError(ERROR_LB_WITHOUT_TABSTOPS);
        return FALSE;
    }
 
    HeapFree( GetProcessHeap(), 0, descr->tabs );
    if (!(descr->nb_tabs = count))
    {
        descr->tabs = NULL;
        return TRUE;
    }
    if (!(descr->tabs = HeapAlloc( GetProcessHeap(), 0,
                                            descr->nb_tabs * sizeof(INT) )))
        return FALSE;
    memcpy( descr->tabs, tabs, descr->nb_tabs * sizeof(INT) );
 
    /* convert into "dialog units"*/
    for (i = 0; i < descr->nb_tabs; i++)
        descr->tabs[i] = MulDiv(descr->tabs[i], descr->avg_char_width, 4);
 
    return TRUE;
}

LISTBOX_SetTopItem()

static LRESULT LISTBOX_SetTopItem ( LB_DESCR *  descr, INT  index, BOOL  scroll  )

static

Definition at line 292 of file listbox.c.

{
    INT max = LISTBOX_GetMaxTopIndex( descr );
 
    TRACE("setting top item %d, scroll %d\n", index, scroll);
 
    if (index > max) index = max;
    if (index < 0) index = 0;
    if (descr->style & LBS_MULTICOLUMN) index -= index % descr->page_size;
    if (descr->top_item == index) return LB_OKAY;
    if (scroll)
    {
        INT diff;
        if (descr->style & LBS_MULTICOLUMN)
            diff = (descr->top_item - index) / descr->page_size * descr->column_width;
        else if (descr->style & LBS_OWNERDRAWVARIABLE)
        {
            INT i;
            diff = 0;
            if (index > descr->top_item)
            {
                for (i = index - 1; i >= descr->top_item; i--)
                    diff -= descr->items[i].height;
            }
            else
            {
                for (i = index; i < descr->top_item; i++)
                    diff += descr->items[i].height;
            }
        }
        else
            diff = (descr->top_item - index) * descr->item_height;
 
#ifdef __REACTOS__
        if (descr->style & LBS_MULTICOLUMN)
            ScrollWindowEx(descr->self, diff, 0, NULL, NULL, 0, NULL,
                           SW_INVALIDATE | SW_ERASE | SW_SCROLLCHILDREN);
        else
#endif
        ScrollWindowEx( descr->self, 0, diff, NULL, NULL, 0, NULL,
                        SW_INVALIDATE | SW_ERASE | SW_SCROLLCHILDREN );
    }
    else
        InvalidateRect( descr->self, NULL, TRUE );
    descr->top_item = index;
    LISTBOX_UpdateScroll( descr );
    return LB_OKAY;
}

LISTBOX_update_uistate()

static BOOL LISTBOX_update_uistate ( LB_DESCR *  descr )

static

Definition at line 2498 of file listbox.c.

{
    LONG prev_flags;
 
    prev_flags = descr->UIState;
    descr->UIState = DefWindowProcW(descr->self, WM_QUERYUISTATE, 0, 0);
    return prev_flags != descr->UIState;
}

Referenced by LISTBOX_Create(), and ListBoxWndProc_common().

LISTBOX_UpdatePage()

static void LISTBOX_UpdatePage ( LB_DESCR *  descr )

static

Definition at line 348 of file listbox.c.

{
    INT page_size;
 
    if ((descr->item_height == 0) || (page_size = descr->height / descr->item_height) < 1)
                       page_size = 1;
    if (page_size == descr->page_size) return;
    descr->page_size = page_size;
    if (descr->style & LBS_MULTICOLUMN)
        InvalidateRect( descr->self, NULL, TRUE );
    LISTBOX_SetTopItem( descr, descr->top_item, FALSE );
}

LISTBOX_UpdateScroll()

static void LISTBOX_UpdateScroll ( LB_DESCR *  descr )

static

Definition at line 209 of file listbox.c.

{
    SCROLLINFO info;
 
    /* Check the listbox scroll bar flags individually before we call
       SetScrollInfo otherwise when the listbox style is WS_HSCROLL and
       no WS_VSCROLL, we end up with an uninitialized, visible horizontal
       scroll bar when we do not need one.
    if (!(descr->style & WS_VSCROLL)) return;
    */
 
    /*   It is important that we check descr->style, and not wnd->dwStyle,
       for WS_VSCROLL, as the former is exactly the one passed in
       argument to CreateWindow.
         In Windows (and from now on in Wine :) a listbox created
       with such a style (no WS_SCROLL) does not update
       the scrollbar with listbox-related data, thus letting
       the programmer use it for his/her own purposes. */
 
    if (descr->style & LBS_NOREDRAW) return;
    info.cbSize = sizeof(info);
 
    if (descr->style & LBS_MULTICOLUMN)
    {
        info.nMin  = 0;
        info.nMax  = (descr->nb_items - 1) / descr->page_size;
        info.nPos  = descr->top_item / descr->page_size;
        info.nPage = descr->width / descr->column_width;
        if (info.nPage < 1) info.nPage = 1;
        info.fMask = SIF_RANGE | SIF_POS | SIF_PAGE;
        if (descr->style & LBS_DISABLENOSCROLL)
            info.fMask |= SIF_DISABLENOSCROLL;
        if (descr->style & WS_HSCROLL)
            SetScrollInfo( descr->self, SB_HORZ, &info, TRUE );
        info.nMax = 0;
        info.fMask = SIF_RANGE;
        if (descr->style & WS_VSCROLL)
            SetScrollInfo( descr->self, SB_VERT, &info, TRUE );
    }
    else
    {
        info.nMin  = 0;
        info.nMax  = descr->nb_items - 1;
        info.nPos  = descr->top_item;
        info.nPage = LISTBOX_GetCurrentPageSize( descr );
        info.fMask = SIF_RANGE | SIF_POS | SIF_PAGE;
        if (descr->style & LBS_DISABLENOSCROLL)
            info.fMask |= SIF_DISABLENOSCROLL;
        if (descr->style & WS_VSCROLL)
            SetScrollInfo( descr->self, SB_VERT, &info, TRUE );
 
        if ((descr->style & WS_HSCROLL) && descr->horz_extent)
        {
            info.nPos  = descr->horz_pos;
            info.nPage = descr->width;
            info.fMask = SIF_POS | SIF_PAGE;
            if (descr->style & LBS_DISABLENOSCROLL)
                info.fMask |= SIF_DISABLENOSCROLL;
            SetScrollInfo( descr->self, SB_HORZ, &info, TRUE );
        }
        else
        {
            if (descr->style & LBS_DISABLENOSCROLL)
            {
                info.nMin  = 0;
                info.nMax  = 0;
                info.fMask = SIF_RANGE | SIF_DISABLENOSCROLL;
                SetScrollInfo( descr->self, SB_HORZ, &info, TRUE );
            }
            else
            {
                ShowScrollBar( descr->self, SB_HORZ, FALSE );
            }
        }
    }
}

LISTBOX_UpdateSize()

static void LISTBOX_UpdateSize ( LB_DESCR *  descr )

static

Definition at line 368 of file listbox.c.

{
    RECT rect;
    LONG style = GetWindowLongPtrW( descr->self, GWL_STYLE );
 
    GetClientRect( descr->self, &rect );
    if (style & WS_HSCROLL)
        rect.bottom += GetSystemMetrics(SM_CYHSCROLL);
    descr->width  = rect.right - rect.left;
    descr->height = rect.bottom - rect.top;
    if (!(descr->style & LBS_NOINTEGRALHEIGHT) && !(descr->style & LBS_OWNERDRAWVARIABLE))
    {
        INT remaining;
        RECT rect;
 
        GetWindowRect( descr->self, &rect );
        if(descr->item_height != 0)
            remaining = descr->height % descr->item_height;
        else
            remaining = 0;
        if ((descr->height > descr->item_height) && remaining)
        {
            TRACE("[%p]: changing height %d -> %d\n",
                  descr->self, descr->height, descr->height - remaining );
            SetWindowPos( descr->self, 0, 0, 0, rect.right - rect.left,
                          rect.bottom - rect.top - remaining,
                          SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOMOVE );
            return;
        }
    }
    TRACE("[%p]: new size = %d,%d\n", descr->self, descr->width, descr->height );
    LISTBOX_UpdatePage( descr );
    LISTBOX_UpdateScroll( descr );
 
    /* Invalidate the focused item so it will be repainted correctly */
    if (LISTBOX_GetItemRect( descr, descr->focus_item, &rect ) == 1)
    {
        InvalidateRect( descr->self, &rect, FALSE );
    }
}

ListBoxWndProc_common()

LRESULT WINAPI ListBoxWndProc_common	(	HWND	hwnd,
		UINT	msg,
		WPARAM	wParam,
		LPARAM	lParam,
		BOOL	unicode
	)

Definition at line 2614 of file listbox.c.

{
    LB_DESCR *descr = (LB_DESCR *)GetWindowLongPtrW( hwnd, 0 );
    LPHEADCOMBO lphc = 0;
    LRESULT ret;
#ifdef __REACTOS__
    PWND pWnd;
 
    pWnd = ValidateHwnd(hwnd);
    if (pWnd)
    {
       if (!pWnd->fnid)
       {
          NtUserSetWindowFNID(hwnd, FNID_LISTBOX); // Could be FNID_COMBOLBOX by class.
       }
       else
       {
          if (pWnd->fnid != FNID_LISTBOX)
          {
             ERR("Wrong window class for listbox! fnId 0x%x\n",pWnd->fnid);
             return 0;
          }
       }
    }    
#endif    
 
    if (!descr)
    {
        if (!IsWindow(hwnd)) return 0;
 
        if (msg == WM_CREATE)
        {
        CREATESTRUCTW *lpcs = (CREATESTRUCTW *)lParam;
            if (lpcs->style & LBS_COMBOBOX) lphc = lpcs->lpCreateParams;
            if (!LISTBOX_Create( hwnd, lphc )) return -1;
            TRACE("creating hwnd %p descr %p\n", hwnd, (void *)GetWindowLongPtrW( hwnd, 0 ) );
            return 0;
        }
        /* Ignore all other messages before we get a WM_CREATE */
        return unicode ? DefWindowProcW( hwnd, msg, wParam, lParam ) :
                         DefWindowProcA( hwnd, msg, wParam, lParam );
    }
    if (descr->style & LBS_COMBOBOX) lphc = descr->lphc;
 
    TRACE("[%p]: msg %s wp %08lx lp %08lx\n",
          descr->self, SPY_GetMsgName(msg, descr->self), wParam, lParam );
 
    switch(msg)
    {
    case LB_RESETCONTENT:
        LISTBOX_ResetContent( descr );
        LISTBOX_UpdateScroll( descr );
        InvalidateRect( descr->self, NULL, TRUE );
        return 0;
 
    case LB_ADDSTRING:
#ifdef __REACTOS__
    case LB_ADDSTRING_LOWER:
    case LB_ADDSTRING_UPPER:
#endif
    {
        INT ret;
        LPWSTR textW;
        if(unicode || !HAS_STRINGS(descr))
            textW = (LPWSTR)lParam;
        else
        {
            LPSTR textA = (LPSTR)lParam;
            INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
            if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
                MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
            else
                return LB_ERRSPACE;
        }
#ifdef __REACTOS__
        /* in the unicode the version, the string is really overwritten
           during the converting case */
        if (msg == LB_ADDSTRING_LOWER)
            strlwrW(textW);
        else if (msg == LB_ADDSTRING_UPPER)
            struprW(textW);
#endif
        wParam = LISTBOX_FindStringPos( descr, textW, FALSE );
        ret = LISTBOX_InsertString( descr, wParam, textW );
        if (!unicode && HAS_STRINGS(descr))
            HeapFree(GetProcessHeap(), 0, textW);
        return ret;
    }
 
    case LB_INSERTSTRING:
#ifdef __REACTOS__
    case LB_INSERTSTRING_UPPER:
    case LB_INSERTSTRING_LOWER:
#endif
    {
        INT ret;
        LPWSTR textW;
        if(unicode || !HAS_STRINGS(descr))
            textW = (LPWSTR)lParam;
        else
        {
            LPSTR textA = (LPSTR)lParam;
            INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
            if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
                MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
            else
                return LB_ERRSPACE;
        }
#ifdef __REACTOS__
        /* in the unicode the version, the string is really overwritten
           during the converting case */
        if (msg == LB_INSERTSTRING_LOWER)
            strlwrW(textW);
        else if (msg == LB_INSERTSTRING_UPPER)
            struprW(textW);
#endif
        ret = LISTBOX_InsertString( descr, wParam, textW );
        if(!unicode && HAS_STRINGS(descr))
            HeapFree(GetProcessHeap(), 0, textW);
        return ret;
    }
 
    case LB_ADDFILE:
    {
        INT ret;
        LPWSTR textW;
        if(unicode || !HAS_STRINGS(descr))
            textW = (LPWSTR)lParam;
        else
        {
            LPSTR textA = (LPSTR)lParam;
            INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
            if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
                MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
            else
                return LB_ERRSPACE;
        }
        wParam = LISTBOX_FindFileStrPos( descr, textW );
        ret = LISTBOX_InsertString( descr, wParam, textW );
        if(!unicode && HAS_STRINGS(descr))
            HeapFree(GetProcessHeap(), 0, textW);
        return ret;
    }
 
    case LB_DELETESTRING:
        if (LISTBOX_RemoveItem( descr, wParam) != LB_ERR)
            return descr->nb_items;
        else
        {
            SetLastError(ERROR_INVALID_INDEX);
            return LB_ERR;
        }
 
    case LB_GETITEMDATA:
        if (((INT)wParam < 0) || ((INT)wParam >= descr->nb_items))
        {
            SetLastError(ERROR_INVALID_INDEX);
            return LB_ERR;
        }
        return descr->items[wParam].data;
 
    case LB_SETITEMDATA:
        if (((INT)wParam < 0) || ((INT)wParam >= descr->nb_items))
        {
            SetLastError(ERROR_INVALID_INDEX);
            return LB_ERR;
        }
        descr->items[wParam].data = lParam;
        /* undocumented: returns TRUE, not LB_OKAY (0) */
        return TRUE;
 
    case LB_GETCOUNT:
        return descr->nb_items;
 
    case LB_GETTEXT:
        return LISTBOX_GetText( descr, wParam, (LPWSTR)lParam, unicode );
 
    case LB_GETTEXTLEN:
        if ((INT)wParam >= descr->nb_items || (INT)wParam < 0)
        {
            SetLastError(ERROR_INVALID_INDEX);
            return LB_ERR;
        }
        if (!HAS_STRINGS(descr)) return sizeof(DWORD);
        if (unicode) return strlenW( descr->items[wParam].str );
        return WideCharToMultiByte( CP_ACP, 0, descr->items[wParam].str,
                                    strlenW(descr->items[wParam].str), NULL, 0, NULL, NULL );
 
    case LB_GETCURSEL:
        if (descr->nb_items == 0)
            return LB_ERR;
        if (!IS_MULTISELECT(descr))
            return descr->selected_item;
        if (descr->selected_item != -1)
            return descr->selected_item;
        return descr->focus_item;
        /* otherwise, if the user tries to move the selection with the    */
        /* arrow keys, we will give the application something to choke on */
    case LB_GETTOPINDEX:
        return descr->top_item;
 
    case LB_GETITEMHEIGHT:
        return LISTBOX_GetItemHeight( descr, wParam );
 
    case LB_SETITEMHEIGHT:
        return LISTBOX_SetItemHeight( descr, wParam, lParam, TRUE );
 
    case LB_ITEMFROMPOINT:
        {
            POINT pt;
            RECT rect;
            int index;
            BOOL hit = TRUE;
 
            /* The hiword of the return value is not a client area
               hittest as suggested by MSDN, but rather a hittest on
               the returned listbox item. */
 
            if(descr->nb_items == 0)
                return 0x1ffff;      /* win9x returns 0x10000, we copy winnt */
 
            pt.x = (short)LOWORD(lParam);
            pt.y = (short)HIWORD(lParam);
 
            SetRect(&rect, 0, 0, descr->width, descr->height);
 
            if(!PtInRect(&rect, pt))
            {
                pt.x = min(pt.x, rect.right - 1);
                pt.x = max(pt.x, 0);
                pt.y = min(pt.y, rect.bottom - 1);
                pt.y = max(pt.y, 0);
                hit = FALSE;
            }
 
            index = LISTBOX_GetItemFromPoint(descr, pt.x, pt.y);
 
            if(index == -1)
            {
                index = descr->nb_items - 1;
                hit = FALSE;
            }
            return MAKELONG(index, hit ? 0 : 1);
        }
 
    case LB_SETCARETINDEX:
        if ((!IS_MULTISELECT(descr)) && (descr->selected_item != -1)) return LB_ERR;
        if (LISTBOX_SetCaretIndex( descr, wParam, !lParam ) == LB_ERR)
            return LB_ERR;
        else if (ISWIN31)
             return wParam;
        else
             return LB_OKAY;
 
    case LB_GETCARETINDEX:
        return descr->focus_item;
 
    case LB_SETTOPINDEX:
        return LISTBOX_SetTopItem( descr, wParam, TRUE );
 
    case LB_SETCOLUMNWIDTH:
        return LISTBOX_SetColumnWidth( descr, wParam );
 
    case LB_GETITEMRECT:
        return LISTBOX_GetItemRect( descr, wParam, (RECT *)lParam );
 
    case LB_FINDSTRING:
    {
        INT ret;
        LPWSTR textW;
        if(unicode || !HAS_STRINGS(descr))
            textW = (LPWSTR)lParam;
        else
        {
            LPSTR textA = (LPSTR)lParam;
            INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
            if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
                MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
        }
        ret = LISTBOX_FindString( descr, wParam, textW, FALSE );
        if(!unicode && HAS_STRINGS(descr))
            HeapFree(GetProcessHeap(), 0, textW);
        return ret;
    }
 
    case LB_FINDSTRINGEXACT:
    {
        INT ret;
        LPWSTR textW;
        if(unicode || !HAS_STRINGS(descr))
            textW = (LPWSTR)lParam;
        else
        {
            LPSTR textA = (LPSTR)lParam;
            INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
            if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
                MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
        }
        ret = LISTBOX_FindString( descr, wParam, textW, TRUE );
        if(!unicode && HAS_STRINGS(descr))
            HeapFree(GetProcessHeap(), 0, textW);
        return ret;
    }
 
    case LB_SELECTSTRING:
    {
        INT index;
        LPWSTR textW;
 
    if(HAS_STRINGS(descr))
        TRACE("LB_SELECTSTRING: %s\n", unicode ? debugstr_w((LPWSTR)lParam) :
                             debugstr_a((LPSTR)lParam));
        if(unicode || !HAS_STRINGS(descr))
            textW = (LPWSTR)lParam;
        else
        {
            LPSTR textA = (LPSTR)lParam;
            INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
            if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
                MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
        }
        index = LISTBOX_FindString( descr, wParam, textW, FALSE );
        if(!unicode && HAS_STRINGS(descr))
            HeapFree(GetProcessHeap(), 0, textW);
        if (index != LB_ERR)
    {
            LISTBOX_MoveCaret( descr, index, TRUE );
            LISTBOX_SetSelection( descr, index, TRUE, FALSE );
    }
        return index;
    }
 
    case LB_GETSEL:
        if (((INT)wParam < 0) || ((INT)wParam >= descr->nb_items))
            return LB_ERR;
        return descr->items[wParam].selected;
 
    case LB_SETSEL:
        return LISTBOX_SetSelection( descr, lParam, wParam, FALSE );
 
    case LB_SETCURSEL:
        if (IS_MULTISELECT(descr)) return LB_ERR;
        LISTBOX_SetCaretIndex( descr, wParam, TRUE );
        ret = LISTBOX_SetSelection( descr, wParam, TRUE, FALSE );
    if (ret != LB_ERR) ret = descr->selected_item;
    return ret;
 
    case LB_GETSELCOUNT:
        return LISTBOX_GetSelCount( descr );
 
    case LB_GETSELITEMS:
        return LISTBOX_GetSelItems( descr, wParam, (LPINT)lParam );
 
    case LB_SELITEMRANGE:
        if (LOWORD(lParam) <= HIWORD(lParam))
            return LISTBOX_SelectItemRange( descr, LOWORD(lParam),
                                            HIWORD(lParam), wParam );
        else
            return LISTBOX_SelectItemRange( descr, HIWORD(lParam),
                                            LOWORD(lParam), wParam );
 
    case LB_SELITEMRANGEEX:
        if ((INT)lParam >= (INT)wParam)
            return LISTBOX_SelectItemRange( descr, wParam, lParam, TRUE );
        else
            return LISTBOX_SelectItemRange( descr, lParam, wParam, FALSE);
 
    case LB_GETHORIZONTALEXTENT:
        return descr->horz_extent;
 
    case LB_SETHORIZONTALEXTENT:
        return LISTBOX_SetHorizontalExtent( descr, wParam );
 
    case LB_GETANCHORINDEX:
        return descr->anchor_item;
 
    case LB_SETANCHORINDEX:
        if (((INT)wParam < -1) || ((INT)wParam >= descr->nb_items))
        {
            SetLastError(ERROR_INVALID_INDEX);
            return LB_ERR;
        }
        descr->anchor_item = (INT)wParam;
        return LB_OKAY;
 
    case LB_DIR:
    {
        INT ret;
        LPWSTR textW;
        if(unicode)
            textW = (LPWSTR)lParam;
        else
        {
            LPSTR textA = (LPSTR)lParam;
            INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
            if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
                MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
        }
        ret = LISTBOX_Directory( descr, wParam, textW, msg == LB_DIR );
        if(!unicode)
            HeapFree(GetProcessHeap(), 0, textW);
        return ret;
    }
 
    case LB_GETLOCALE:
        return descr->locale;
 
    case LB_SETLOCALE:
    {
        LCID ret;
        if (!IsValidLocale((LCID)wParam, LCID_INSTALLED))
            return LB_ERR;
        ret = descr->locale;
        descr->locale = (LCID)wParam;
        return ret;
    }
 
    case LB_INITSTORAGE:
        return LISTBOX_InitStorage( descr, wParam );
 
    case LB_SETCOUNT:
        return LISTBOX_SetCount( descr, (INT)wParam );
 
    case LB_SETTABSTOPS:
        return LISTBOX_SetTabStops( descr, wParam, (LPINT)lParam );
 
    case LB_CARETON:
        if (descr->caret_on)
            return LB_OKAY;
        descr->caret_on = TRUE;
        if ((descr->focus_item != -1) && (descr->in_focus))
            LISTBOX_RepaintItem( descr, descr->focus_item, ODA_FOCUS );
        return LB_OKAY;
 
    case LB_CARETOFF:
        if (!descr->caret_on)
            return LB_OKAY;
        descr->caret_on = FALSE;
        if ((descr->focus_item != -1) && (descr->in_focus))
            LISTBOX_RepaintItem( descr, descr->focus_item, ODA_FOCUS );
        return LB_OKAY;
 
    case LB_GETLISTBOXINFO:
        return descr->page_size;
 
    case WM_DESTROY:
        return LISTBOX_Destroy( descr );
 
    case WM_ENABLE:
        InvalidateRect( descr->self, NULL, TRUE );
        return 0;
 
    case WM_SETREDRAW:
        LISTBOX_SetRedraw( descr, wParam != 0 );
        return 0;
 
    case WM_GETDLGCODE:
        return DLGC_WANTARROWS | DLGC_WANTCHARS;
 
    case WM_PRINTCLIENT:
    case WM_PAINT:
        {
            PAINTSTRUCT ps;
            HDC hdc = ( wParam ) ? ((HDC)wParam) :  BeginPaint( descr->self, &ps );
            ret = LISTBOX_Paint( descr, hdc );
            if( !wParam ) EndPaint( descr->self, &ps );
        }
        return ret;
    case WM_SIZE:
        LISTBOX_UpdateSize( descr );
        return 0;
    case WM_GETFONT:
        return (LRESULT)descr->font;
    case WM_SETFONT:
        LISTBOX_SetFont( descr, (HFONT)wParam );
        if (lParam) InvalidateRect( descr->self, 0, TRUE );
        return 0;
    case WM_SETFOCUS:
        descr->in_focus = TRUE;
        descr->caret_on = TRUE;
        if (descr->focus_item != -1)
            LISTBOX_DrawFocusRect( descr, TRUE );
        SEND_NOTIFICATION( descr, LBN_SETFOCUS );
        return 0;
    case WM_KILLFOCUS:
        LISTBOX_HandleLButtonUp( descr ); /* Release capture if we have it */
        descr->in_focus = FALSE;
        descr->wheel_remain = 0;
        if ((descr->focus_item != -1) && descr->caret_on)
            LISTBOX_RepaintItem( descr, descr->focus_item, ODA_FOCUS );
        SEND_NOTIFICATION( descr, LBN_KILLFOCUS );
        return 0;
    case WM_HSCROLL:
        return LISTBOX_HandleHScroll( descr, LOWORD(wParam), HIWORD(wParam) );
    case WM_VSCROLL:
        return LISTBOX_HandleVScroll( descr, LOWORD(wParam), HIWORD(wParam) );
    case WM_MOUSEWHEEL: