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wine/controls/listbox.c
Nick Holloway b9ce4fd51b For Win 3.x applications, if they have either horizontal or vertical 
scrollbars, enable both.
1999-09-11 16:29:00 +00:00

2918 lines
92 KiB
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/*
* Listbox controls
*
* Copyright 1996 Alexandre Julliard
*/
#include <string.h>
#include <stdlib.h>
#include "wine/winuser16.h"
#include "wine/winbase16.h"
#include "winuser.h"
#include "winerror.h"
#include "drive.h"
#include "heap.h"
#include "spy.h"
#include "win.h"
#include "combo.h"
#include "debugtools.h"
#include "tweak.h"
#include "winversion.h"
DEFAULT_DEBUG_CHANNEL(listbox)
DECLARE_DEBUG_CHANNEL(combo)
/* Unimplemented yet:
* - LBS_NOSEL
* - LBS_USETABSTOPS
* - Unicode
* - Locale handling
*/
/* Items array granularity */
#define LB_ARRAY_GRANULARITY 16
/* Scrolling timeout in ms */
#define LB_SCROLL_TIMEOUT 50
/* Listbox system timer id */
#define LB_TIMER_ID 2
/* Item structure */
typedef struct
{
LPSTR str; /* Item text */
BOOL selected; /* Is item selected? */
UINT height; /* Item height (only for OWNERDRAWVARIABLE) */
DWORD data; /* User data */
} LB_ITEMDATA;
/* Listbox structure */
typedef struct
{
HANDLE heap; /* Heap for this listbox */
HWND owner; /* Owner window to send notifications to */
UINT style; /* Window style */
INT width; /* Window width */
INT height; /* Window height */
LB_ITEMDATA *items; /* Array of items */
INT nb_items; /* Number of items */
INT top_item; /* Top visible item */
INT selected_item; /* Selected item */
INT focus_item; /* Item that has the focus */
INT anchor_item; /* Anchor item for extended selection */
INT item_height; /* Default item height */
INT page_size; /* Items per listbox page */
INT column_width; /* Column width for multi-column listboxes */
INT horz_extent; /* Horizontal extent (0 if no hscroll) */
INT horz_pos; /* Horizontal position */
INT nb_tabs; /* Number of tabs in array */
INT *tabs; /* Array of tabs */
BOOL caret_on; /* Is caret on? */
BOOL captured; /* Is mouse captured? */
HFONT font; /* Current font */
LCID locale; /* Current locale for string comparisons */
LPHEADCOMBO lphc; /* ComboLBox */
} LB_DESCR;
#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) \
((descr)->style & LBS_MULTIPLESEL || ((descr)->style & LBS_EXTENDEDSEL))
#define SEND_NOTIFICATION(wnd,descr,code) \
(SendMessageA( (descr)->owner, WM_COMMAND, \
MAKEWPARAM((((descr)->lphc)?ID_CB_LISTBOX:(wnd)->wIDmenu), (code) ), (wnd)->hwndSelf ))
#define ISWIN31 (LOWORD(GetVersion()) == 0x0a03)
/* Current timer status */
typedef enum
{
LB_TIMER_NONE,
LB_TIMER_UP,
LB_TIMER_LEFT,
LB_TIMER_DOWN,
LB_TIMER_RIGHT
} TIMER_DIRECTION;
static TIMER_DIRECTION LISTBOX_Timer = LB_TIMER_NONE;
/***********************************************************************
* LISTBOX_Dump
*/
void LISTBOX_Dump( WND *wnd )
{
INT i;
LB_ITEMDATA *item;
LB_DESCR *descr = *(LB_DESCR **)wnd->wExtra;
TRACE( "Listbox:\n" );
TRACE( "hwnd=%04x descr=%08x heap=%08x items=%d top=%d\n",
wnd->hwndSelf, (UINT)descr, descr->heap, descr->nb_items,
descr->top_item );
for (i = 0, item = descr->items; i < descr->nb_items; i++, item++)
{
TRACE( "%4d: %-40s %d %08lx %3d\n",
i, item->str, item->selected, item->data, item->height );
}
}
/***********************************************************************
* LISTBOX_GetCurrentPageSize
*
* Return the current page size
*/
static INT LISTBOX_GetCurrentPageSize( WND *wnd, LB_DESCR *descr )
{
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_GetMaxTopIndex
*
* Return the maximum possible index for the top of the listbox.
*/
static INT LISTBOX_GetMaxTopIndex( WND *wnd, LB_DESCR *descr )
{
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_UpdateScroll
*
* Update the scrollbars. Should be called whenever the content
* of the listbox changes.
*/
static void LISTBOX_UpdateScroll( WND *wnd, LB_DESCR *descr )
{
SCROLLINFO info;
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;
SetScrollInfo( wnd->hwndSelf, SB_HORZ, &info, TRUE );
info.nMax = 0;
info.fMask = SIF_RANGE;
SetScrollInfo( wnd->hwndSelf, SB_VERT, &info, TRUE );
}
else
{
info.nMin = 0;
info.nMax = descr->nb_items - 1;
info.nPos = descr->top_item;
info.nPage = LISTBOX_GetCurrentPageSize( wnd, descr );
info.fMask = SIF_RANGE | SIF_POS | SIF_PAGE;
if (descr->style & LBS_DISABLENOSCROLL)
info.fMask |= SIF_DISABLENOSCROLL;
SetScrollInfo( wnd->hwndSelf, SB_VERT, &info, TRUE );
if (descr->horz_extent)
{
info.nMin = 0;
info.nMax = descr->horz_extent - 1;
info.nPos = descr->horz_pos;
info.nPage = descr->width;
info.fMask = SIF_RANGE | SIF_POS | SIF_PAGE;
if (descr->style & LBS_DISABLENOSCROLL)
info.fMask |= SIF_DISABLENOSCROLL;
SetScrollInfo( wnd->hwndSelf, SB_HORZ, &info, TRUE );
}
}
}
/***********************************************************************
* LISTBOX_SetTopItem
*
* Set the top item of the listbox, scrolling up or down if necessary.
*/
static LRESULT LISTBOX_SetTopItem( WND *wnd, LB_DESCR *descr, INT index,
BOOL scroll )
{
INT max = LISTBOX_GetMaxTopIndex( wnd, descr );
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 (descr->style & LBS_MULTICOLUMN)
{
INT diff = (descr->top_item - index) / descr->page_size * descr->column_width;
if (scroll && (abs(diff) < descr->width))
ScrollWindowEx( wnd->hwndSelf, diff, 0, NULL, NULL, 0, NULL,
SW_INVALIDATE | SW_ERASE | SW_SCROLLCHILDREN );
else
scroll = FALSE;
}
else if (scroll)
{
INT diff;
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;
if (abs(diff) < descr->height)
ScrollWindowEx( wnd->hwndSelf, 0, diff, NULL, NULL, 0, NULL,
SW_INVALIDATE | SW_ERASE | SW_SCROLLCHILDREN );
else
scroll = FALSE;
}
if (!scroll) InvalidateRect( wnd->hwndSelf, NULL, TRUE );
descr->top_item = index;
LISTBOX_UpdateScroll( wnd, descr );
return LB_OKAY;
}
/***********************************************************************
* LISTBOX_UpdatePage
*
* Update the page size. Should be called when the size of
* the client area or the item height changes.
*/
static void LISTBOX_UpdatePage( WND *wnd, LB_DESCR *descr )
{
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( wnd->hwndSelf, NULL, TRUE );
LISTBOX_SetTopItem( wnd, descr, descr->top_item, FALSE );
}
/***********************************************************************
* LISTBOX_UpdateSize
*
* Update the size of the listbox. Should be called when the size of
* the client area changes.
*/
static void LISTBOX_UpdateSize( WND *wnd, LB_DESCR *descr )
{
RECT rect;
GetClientRect( wnd->hwndSelf, &rect );
descr->width = rect.right - rect.left;
descr->height = rect.bottom - rect.top;
if (!(descr->style & LBS_NOINTEGRALHEIGHT) && !IS_OWNERDRAW(descr))
{
if ((descr->height > descr->item_height) &&
(descr->height % descr->item_height))
{
TRACE("[%04x]: changing height %d -> %d\n",
wnd->hwndSelf, descr->height,
descr->height - descr->height%descr->item_height );
SetWindowPos( wnd->hwndSelf, 0, 0, 0,
wnd->rectWindow.right - wnd->rectWindow.left,
wnd->rectWindow.bottom - wnd->rectWindow.top -
(descr->height % descr->item_height),
SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOMOVE );
return;
}
}
TRACE("[%04x]: new size = %d,%d\n",
wnd->hwndSelf, descr->width, descr->height );
LISTBOX_UpdatePage( wnd, descr );
LISTBOX_UpdateScroll( wnd, descr );
}
/***********************************************************************
* LISTBOX_GetItemRect
*
* Get the rectangle enclosing an item, in listbox client coordinates.
* Return 1 if the rectangle is (partially) visible, 0 if hidden, -1 on error.
*/
static LRESULT LISTBOX_GetItemRect( WND *wnd, LB_DESCR *descr, INT index,
RECT *rect )
{
/* Index <= 0 is legal even on empty listboxes */
if (index && (index >= descr->nb_items)) return -1;
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;
}
return ((rect->left < descr->width) && (rect->right > 0) &&
(rect->top < descr->height) && (rect->bottom > 0));
}
/***********************************************************************
* LISTBOX_GetItemFromPoint
*
* Return the item nearest from point (x,y) (in client coordinates).
*/
static INT LISTBOX_GetItemFromPoint( WND *wnd, LB_DESCR *descr,
INT x, INT y )
{
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_PaintItem
*
* Paint an item.
*/
static void LISTBOX_PaintItem( WND *wnd, LB_DESCR *descr, HDC hdc,
const RECT *rect, INT index, UINT action )
{
LB_ITEMDATA *item = NULL;
if (index < descr->nb_items) item = &descr->items[index];
if (IS_OWNERDRAW(descr))
{
DRAWITEMSTRUCT dis;
UINT id = (descr->lphc) ? ID_CB_LISTBOX : wnd->wIDmenu;
if (!item)
{
if (action == ODA_FOCUS)
DrawFocusRect( hdc, rect );
else
FIXME("called with an out of bounds index %d(%d) in owner draw, Not good.\n",index,descr->nb_items);
return;
}
dis.CtlType = ODT_LISTBOX;
dis.CtlID = id;
dis.hwndItem = wnd->hwndSelf;
dis.itemAction = action;
dis.hDC = hdc;
dis.itemID = index;
dis.itemState = 0;
if (item && item->selected) dis.itemState |= ODS_SELECTED;
if ((descr->focus_item == index) &&
(descr->caret_on) &&
(GetFocus() == wnd->hwndSelf)) dis.itemState |= ODS_FOCUS;
if (wnd->dwStyle & WS_DISABLED) dis.itemState |= ODS_DISABLED;
dis.itemData = item ? item->data : 0;
dis.rcItem = *rect;
TRACE("[%04x]: drawitem %d (%s) action=%02x "
"state=%02x rect=%d,%d-%d,%d\n",
wnd->hwndSelf, index, item ? item->str : "", action,
dis.itemState, rect->left, rect->top,
rect->right, rect->bottom );
SendMessageA(descr->owner, WM_DRAWITEM, id, (LPARAM)&dis);
}
else
{
COLORREF oldText = 0, oldBk = 0;
if (action == ODA_FOCUS)
{
DrawFocusRect( hdc, rect );
return;
}
if (item && item->selected)
{
oldBk = SetBkColor( hdc, GetSysColor( COLOR_HIGHLIGHT ) );
oldText = SetTextColor( hdc, GetSysColor(COLOR_HIGHLIGHTTEXT));
}
TRACE("[%04x]: painting %d (%s) action=%02x "
"rect=%d,%d-%d,%d\n",
wnd->hwndSelf, index, item ? item->str : "", action,
rect->left, rect->top, rect->right, rect->bottom );
if (!item)
ExtTextOutA( hdc, rect->left + 1, rect->top + 1,
ETO_OPAQUE | ETO_CLIPPED, rect, NULL, 0, NULL );
else if (!(descr->style & LBS_USETABSTOPS))
ExtTextOutA( hdc, rect->left + 1, rect->top + 1,
ETO_OPAQUE | ETO_CLIPPED, rect, item->str,
strlen(item->str), NULL );
else
{
/* Output empty string to paint background in the full width. */
ExtTextOutA( hdc, rect->left + 1, rect->top + 1,
ETO_OPAQUE | ETO_CLIPPED, rect, NULL, 0, NULL );
TabbedTextOutA( hdc, rect->left + 1 , rect->top + 1,
item->str, strlen(item->str),
descr->nb_tabs, descr->tabs, 0);
}
if (item && item->selected)
{
SetBkColor( hdc, oldBk );
SetTextColor( hdc, oldText );
}
if ((descr->focus_item == index) &&
(descr->caret_on) &&
(GetFocus() == wnd->hwndSelf)) DrawFocusRect( hdc, rect );
}
}
/***********************************************************************
* LISTBOX_SetRedraw
*
* Change the redraw flag.
*/
static void LISTBOX_SetRedraw( WND *wnd, LB_DESCR *descr, BOOL on )
{
if (on)
{
if (!(descr->style & LBS_NOREDRAW)) return;
descr->style &= ~LBS_NOREDRAW;
LISTBOX_UpdateScroll( wnd, descr );
}
else descr->style |= LBS_NOREDRAW;
}
/***********************************************************************
* LISTBOX_RepaintItem
*
* Repaint a single item synchronously.
*/
static void LISTBOX_RepaintItem( WND *wnd, LB_DESCR *descr, INT index,
UINT action )
{
HDC hdc;
RECT rect;
HFONT oldFont = 0;
HBRUSH hbrush, oldBrush = 0;
/* Do not repaint the item if the item is not visible */
if ((descr->style & LBS_NOREDRAW) || !IsWindowVisible(wnd->hwndSelf)) return;
if (LISTBOX_GetItemRect( wnd, descr, index, &rect ) != 1) return;
if (!(hdc = GetDCEx( wnd->hwndSelf, 0, DCX_CACHE ))) return;
if (descr->font) oldFont = SelectObject( hdc, descr->font );
hbrush = SendMessageA( descr->owner, WM_CTLCOLORLISTBOX,
hdc, (LPARAM)wnd->hwndSelf );
if (hbrush) oldBrush = SelectObject( hdc, hbrush );
if (wnd->dwStyle & WS_DISABLED)
SetTextColor( hdc, GetSysColor( COLOR_GRAYTEXT ) );
SetWindowOrgEx( hdc, descr->horz_pos, 0, NULL );
LISTBOX_PaintItem( wnd, descr, hdc, &rect, index, action );
if (oldFont) SelectObject( hdc, oldFont );
if (oldBrush) SelectObject( hdc, oldBrush );
ReleaseDC( wnd->hwndSelf, hdc );
}
/***********************************************************************
* LISTBOX_InitStorage
*/
static LRESULT LISTBOX_InitStorage( WND *wnd, LB_DESCR *descr, INT nb_items,
DWORD bytes )
{
LB_ITEMDATA *item;
nb_items += LB_ARRAY_GRANULARITY - 1;
nb_items -= (nb_items % LB_ARRAY_GRANULARITY);
if (descr->items)
nb_items += HeapSize( descr->heap, 0, descr->items ) / sizeof(*item);
if (!(item = HeapReAlloc( descr->heap, 0, descr->items,
nb_items * sizeof(LB_ITEMDATA) )))
{
SEND_NOTIFICATION( wnd, descr, LBN_ERRSPACE );
return LB_ERRSPACE;
}
descr->items = item;
return LB_OKAY;
}
/***********************************************************************
* LISTBOX_SetTabStops
*/
static BOOL LISTBOX_SetTabStops( WND *wnd, LB_DESCR *descr, INT count,
LPINT tabs, BOOL short_ints )
{
if (!(descr->style & LBS_USETABSTOPS)) return TRUE;
if (descr->tabs) HeapFree( descr->heap, 0, descr->tabs );
if (!(descr->nb_tabs = count))
{
descr->tabs = NULL;
return TRUE;
}
/* FIXME: count = 1 */
if (!(descr->tabs = (INT *)HeapAlloc( descr->heap, 0,
descr->nb_tabs * sizeof(INT) )))
return FALSE;
if (short_ints)
{
INT i;
LPINT16 p = (LPINT16)tabs;
TRACE("[%04x]: settabstops ", wnd->hwndSelf );
for (i = 0; i < descr->nb_tabs; i++) {
descr->tabs[i] = *p++<<1; /* FIXME */
if (TRACE_ON(listbox)) DPRINTF("%hd ", descr->tabs[i]);
}
if (TRACE_ON(listbox)) DPRINTF("\n");
}
else memcpy( descr->tabs, tabs, descr->nb_tabs * sizeof(INT) );
/* FIXME: repaint the window? */
return TRUE;
}
/***********************************************************************
* LISTBOX_GetText
*/
static LRESULT LISTBOX_GetText( WND *wnd, LB_DESCR *descr, INT index,
LPSTR buffer )
{
if ((index < 0) || (index >= descr->nb_items)) return LB_ERR;
if (HAS_STRINGS(descr))
{
if (!buffer)
return strlen(descr->items[index].str);
lstrcpyA( buffer, descr->items[index].str );
return strlen(buffer);
} else {
if (buffer)
*((LPDWORD)buffer)=*(LPDWORD)(&descr->items[index].data);
return sizeof(DWORD);
}
}
/***********************************************************************
* LISTBOX_FindStringPos
*
* Find the nearest string located before a given string in sort order.
* If 'exact' is TRUE, return an error if we don't get an exact match.
*/
static INT LISTBOX_FindStringPos( WND *wnd, LB_DESCR *descr, LPCSTR str,
BOOL exact )
{
INT index, min, max, res = -1;
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 = lstrcmpiA( descr->items[index].str, str );
else
{
COMPAREITEMSTRUCT cis;
UINT id = (descr->lphc) ? ID_CB_LISTBOX : wnd->wIDmenu;
cis.CtlType = ODT_LISTBOX;
cis.CtlID = id;
cis.hwndItem = wnd->hwndSelf;
cis.itemID1 = index;
cis.itemData1 = descr->items[index].data;
cis.itemID2 = -1;
cis.itemData2 = (DWORD)str;
cis.dwLocaleId = descr->locale;
res = SendMessageA( 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_FindFileStrPos
*
* Find the nearest string located before a given string in directory
* sort order (i.e. first files, then directories, then drives).
*/
static INT LISTBOX_FindFileStrPos( WND *wnd, LB_DESCR *descr, LPCSTR str )
{
INT min, max, res = -1;
if (!HAS_STRINGS(descr))
return LISTBOX_FindStringPos( wnd, descr, str, FALSE );
min = 0;
max = descr->nb_items;
while (min != max)
{
INT index = (min + max) / 2;
const char *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 = lstrcmpiA( str, p );
}
}
else /* filename */
{
if (*str == '[') res = 1;
else res = lstrcmpiA( str, p );
}
if (!res) return index;
if (res < 0) max = index;
else min = index + 1;
}
return max;
}
/***********************************************************************
* LISTBOX_FindString
*
* Find the item beginning with a given string.
*/
static INT LISTBOX_FindString( WND *wnd, LB_DESCR *descr, INT start,
LPCSTR str, BOOL exact )
{
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 (!lstrcmpiA( str, item->str )) return i;
for (i = 0, item = descr->items; i <= start; i++, item++)
if (!lstrcmpiA( str, item->str )) return i;
}
else
{
/* Special case for drives and directories: ignore prefix */
#define CHECK_DRIVE(item) \
if ((item)->str[0] == '[') \
{ \
if (!lstrncmpiA( str, (item)->str+1, len )) return i; \
if (((item)->str[1] == '-') && !lstrncmpiA(str,(item)->str+2,len)) \
return i; \
}
INT len = strlen(str);
for (i = start + 1; i < descr->nb_items; i++, item++)
{
if (!lstrncmpiA( str, item->str, len )) return i;
CHECK_DRIVE(item);
}
for (i = 0, item = descr->items; i <= start; i++, item++)
{
if (!lstrncmpiA( 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( wnd, descr, str, TRUE );
/* Otherwise use a linear search */
for (i = start + 1; i < descr->nb_items; i++, item++)
if (item->data == (DWORD)str) return i;
for (i = 0, item = descr->items; i <= start; i++, item++)
if (item->data == (DWORD)str) return i;
}
return LB_ERR;
}
/***********************************************************************
* LISTBOX_GetSelCount
*/
static LRESULT LISTBOX_GetSelCount( WND *wnd, LB_DESCR *descr )
{
INT i, count;
LB_ITEMDATA *item = descr->items;
if (!(descr->style & LBS_MULTIPLESEL)) return LB_ERR;
for (i = count = 0; i < descr->nb_items; i++, item++)
if (item->selected) count++;
return count;
}
/***********************************************************************
* LISTBOX_GetSelItems16
*/
static LRESULT LISTBOX_GetSelItems16( WND *wnd, LB_DESCR *descr, INT16 max,
LPINT16 array )
{
INT i, count;
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++] = (INT16)i;
return count;
}
/***********************************************************************
* LISTBOX_GetSelItems32
*/
static LRESULT LISTBOX_GetSelItems( WND *wnd, LB_DESCR *descr, INT max,
LPINT array )
{
INT i, count;
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_Paint
*/
static LRESULT LISTBOX_Paint( WND *wnd, LB_DESCR *descr, HDC hdc )
{
INT i, col_pos = descr->page_size - 1;
RECT rect;
HFONT oldFont = 0;
HBRUSH hbrush, oldBrush = 0;
SetRect( &rect, 0, 0, descr->width, descr->height );
if (descr->style & LBS_NOREDRAW) return 0;
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 );
hbrush = SendMessageA( descr->owner, WM_CTLCOLORLISTBOX,
hdc, (LPARAM)wnd->hwndSelf );
if (hbrush) oldBrush = SelectObject( hdc, hbrush );
if (wnd->dwStyle & WS_DISABLED)
SetTextColor( hdc, GetSysColor( COLOR_GRAYTEXT ) );
if (!descr->nb_items && (descr->focus_item != -1) && descr->caret_on &&
(GetFocus() == wnd->hwndSelf))
{
/* Special case for empty listbox: paint focus rect */
rect.bottom = rect.top + descr->item_height;
LISTBOX_PaintItem( wnd, descr, hdc, &rect, descr->focus_item,
ODA_FOCUS );
rect.top = rect.bottom;
}
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;
LISTBOX_PaintItem( wnd, descr, hdc, &rect, i, ODA_DRAWENTIRE );
rect.top = rect.bottom;
if ((descr->style & LBS_MULTICOLUMN) && !col_pos)
{
if (!IS_OWNERDRAW(descr))
{
/* Clear the bottom of the column */
SetBkColor( hdc, GetSysColor( COLOR_WINDOW ) );
if (rect.top < descr->height)
{
rect.bottom = descr->height;
ExtTextOutA( 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;
}
}
if (!IS_OWNERDRAW(descr))
{
/* Clear the remainder of the client area */
SetBkColor( hdc, GetSysColor( COLOR_WINDOW ) );
if (rect.top < descr->height)
{
rect.bottom = descr->height;
ExtTextOutA( 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;
ExtTextOutA( hdc, 0, 0, ETO_OPAQUE | ETO_CLIPPED,
&rect, NULL, 0, NULL );
}
}
if (oldFont) SelectObject( hdc, oldFont );
if (oldBrush) SelectObject( hdc, oldBrush );
return 0;
}
/***********************************************************************
* LISTBOX_InvalidateItems
*
* Invalidate all items from a given item. If the specified item is not
* visible, nothing happens.
*/
static void LISTBOX_InvalidateItems( WND *wnd, LB_DESCR *descr, INT index )
{
RECT rect;
if (LISTBOX_GetItemRect( wnd, descr, index, &rect ) == 1)
{
rect.bottom = descr->height;
InvalidateRect( wnd->hwndSelf, &rect, TRUE );
if (descr->style & LBS_MULTICOLUMN)
{
/* Repaint the other columns */
rect.left = rect.right;
rect.right = descr->width;
rect.top = 0;
InvalidateRect( wnd->hwndSelf, &rect, TRUE );
}
}
}
/***********************************************************************
* LISTBOX_GetItemHeight
*/
static LRESULT LISTBOX_GetItemHeight( WND *wnd, LB_DESCR *descr, INT index )
{
if (descr->style & LBS_OWNERDRAWVARIABLE)
{
if ((index < 0) || (index >= descr->nb_items)) return LB_ERR;
return descr->items[index].height;
}
else return descr->item_height;
}
/***********************************************************************
* LISTBOX_SetItemHeight
*/
static LRESULT LISTBOX_SetItemHeight( WND *wnd, LB_DESCR *descr, INT index,
UINT height )
{
if (!height) height = 1;
if (descr->style & LBS_OWNERDRAWVARIABLE)
{
if ((index < 0) || (index >= descr->nb_items)) return LB_ERR;
TRACE("[%04x]: item %d height = %d\n",
wnd->hwndSelf, index, height );
descr->items[index].height = height;
LISTBOX_UpdateScroll( wnd, descr );
LISTBOX_InvalidateItems( wnd, descr, index );
}
else if (height != descr->item_height)
{
TRACE("[%04x]: new height = %d\n",
wnd->hwndSelf, height );
descr->item_height = height;
LISTBOX_UpdatePage( wnd, descr );
LISTBOX_UpdateScroll( wnd, descr );
InvalidateRect( wnd->hwndSelf, 0, TRUE );
}
return LB_OKAY;
}
/***********************************************************************
* LISTBOX_SetHorizontalPos
*/
static void LISTBOX_SetHorizontalPos( WND *wnd, LB_DESCR *descr, INT pos )
{
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("[%04x]: new horz pos = %d\n",
wnd->hwndSelf, pos );
descr->horz_pos = pos;
LISTBOX_UpdateScroll( wnd, descr );
if (abs(diff) < descr->width)
ScrollWindowEx( wnd->hwndSelf, diff, 0, NULL, NULL, 0, NULL,
SW_INVALIDATE | SW_ERASE | SW_SCROLLCHILDREN );
else
InvalidateRect( wnd->hwndSelf, NULL, TRUE );
}
/***********************************************************************
* LISTBOX_SetHorizontalExtent
*/
static LRESULT LISTBOX_SetHorizontalExtent( WND *wnd, LB_DESCR *descr,
UINT extent )
{
if (!descr->horz_extent || (descr->style & LBS_MULTICOLUMN))
return LB_OKAY;
if (extent <= 0) extent = 1;
if (extent == descr->horz_extent) return LB_OKAY;
TRACE("[%04x]: new horz extent = %d\n",
wnd->hwndSelf, extent );
descr->horz_extent = extent;
if (descr->horz_pos > extent - descr->width)
LISTBOX_SetHorizontalPos( wnd, descr, extent - descr->width );
else
LISTBOX_UpdateScroll( wnd, descr );
return LB_OKAY;
}
/***********************************************************************
* LISTBOX_SetColumnWidth
*/
static LRESULT LISTBOX_SetColumnWidth( WND *wnd, LB_DESCR *descr, UINT width)
{
width += 2; /* For left and right margin */
if (width == descr->column_width) return LB_OKAY;
TRACE("[%04x]: new column width = %d\n",
wnd->hwndSelf, width );
descr->column_width = width;
LISTBOX_UpdatePage( wnd, descr );
return LB_OKAY;
}
/***********************************************************************
* LISTBOX_SetFont
*
* Returns the item height.
*/
static INT LISTBOX_SetFont( WND *wnd, LB_DESCR *descr, HFONT font )
{
HDC hdc;
HFONT oldFont = 0;
TEXTMETRICA tm;
descr->font = font;
if (!(hdc = GetDCEx( wnd->hwndSelf, 0, DCX_CACHE )))
{
ERR("unable to get DC.\n" );
return 16;
}
if (font) oldFont = SelectObject( hdc, font );
GetTextMetricsA( hdc, &tm );
if (oldFont) SelectObject( hdc, oldFont );
ReleaseDC( wnd->hwndSelf, hdc );
if (!IS_OWNERDRAW(descr))
LISTBOX_SetItemHeight( wnd, descr, 0, tm.tmHeight );
return tm.tmHeight ;
}
/***********************************************************************
* LISTBOX_MakeItemVisible
*
* Make sure that a given item is partially or fully visible.
*/
static void LISTBOX_MakeItemVisible( WND *wnd, LB_DESCR *descr, INT index,
BOOL fully )
{
INT top;
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( wnd, descr, top, TRUE );
}
/***********************************************************************
* LISTBOX_SelectItemRange
*
* Select a range of items. Should only be used on a MULTIPLESEL listbox.
*/
static LRESULT LISTBOX_SelectItemRange( WND *wnd, LB_DESCR *descr, INT first,
INT last, BOOL on )
{
INT i;
/* A few sanity checks */
if ((last == -1) && (descr->nb_items == 0)) return LB_OKAY;
if (!(descr->style & LBS_MULTIPLESEL)) return LB_ERR;
if (last == -1) last = descr->nb_items - 1;
if ((first < 0) || (first >= descr->nb_items)) return LB_ERR;
if ((last < 0) || (last >= descr->nb_items)) return LB_ERR;
/* selected_item reflects last selected/unselected item on multiple sel */
descr->selected_item = last;
if (on) /* Turn selection on */
{
for (i = first; i <= last; i++)
{
if (descr->items[i].selected) continue;
descr->items[i].selected = TRUE;
LISTBOX_RepaintItem( wnd, descr, i, ODA_SELECT );
}
}
else /* Turn selection off */
{
for (i = first; i <= last; i++)
{
if (!descr->items[i].selected) continue;
descr->items[i].selected = FALSE;
LISTBOX_RepaintItem( wnd, descr, i, ODA_SELECT );
}
}
return LB_OKAY;
}
/***********************************************************************
* LISTBOX_SetCaretIndex
*
* NOTES
* index must be between 0 and descr->nb_items-1, or LB_ERR is returned.
*
*/
static LRESULT LISTBOX_SetCaretIndex( WND *wnd, LB_DESCR *descr, INT index,
BOOL fully_visible )
{
INT oldfocus = descr->focus_item;
if ((index < 0) || (index >= descr->nb_items)) return LB_ERR;
if (index == oldfocus) return LB_OKAY;
descr->focus_item = index;
if ((oldfocus != -1) && descr->caret_on && (GetFocus() == wnd->hwndSelf))
LISTBOX_RepaintItem( wnd, descr, oldfocus, ODA_FOCUS );
LISTBOX_MakeItemVisible( wnd, descr, index, fully_visible );
if (descr->caret_on && (GetFocus() == wnd->hwndSelf))
LISTBOX_RepaintItem( wnd, descr, index, ODA_FOCUS );
return LB_OKAY;
}
/***********************************************************************
* LISTBOX_SetSelection
*/
static LRESULT LISTBOX_SetSelection( WND *wnd, LB_DESCR *descr, INT index,
BOOL on, BOOL send_notify )
{
if ((index < -1) || (index >= descr->nb_items)) return LB_ERR;
if (descr->style & LBS_MULTIPLESEL)
{
if (index == -1) /* Select all items */
return LISTBOX_SelectItemRange( wnd, descr, 0, -1, on );
else /* Only one item */
return LISTBOX_SelectItemRange( wnd, 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;
descr->selected_item = index;
if (oldsel != -1) LISTBOX_RepaintItem( wnd, descr, oldsel, ODA_SELECT);
if (index != -1) LISTBOX_RepaintItem( wnd, descr, index, ODA_SELECT );
if (send_notify && descr->nb_items) SEND_NOTIFICATION( wnd, 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_MoveCaret
*
* Change the caret position and extend the selection to the new caret.
*/
static void LISTBOX_MoveCaret( WND *wnd, LB_DESCR *descr, INT index,
BOOL fully_visible )
{
LISTBOX_SetCaretIndex( wnd, descr, index, fully_visible );
if (descr->style & LBS_EXTENDEDSEL)
{
if (descr->anchor_item != -1)
{
INT first = MIN( descr->focus_item, descr->anchor_item );
INT last = MAX( descr->focus_item, descr->anchor_item );
if (first > 0)
LISTBOX_SelectItemRange( wnd, descr, 0, first - 1, FALSE );
LISTBOX_SelectItemRange( wnd, descr, last + 1, -1, FALSE );
LISTBOX_SelectItemRange( wnd, descr, first, last, TRUE );
}
}
else if (!(descr->style & LBS_MULTIPLESEL))
{
/* Set selection to new caret item */
LISTBOX_SetSelection( wnd, descr, index, TRUE, FALSE );
}
}
/***********************************************************************
* LISTBOX_InsertItem
*/
static LRESULT LISTBOX_InsertItem( WND *wnd, LB_DESCR *descr, INT index,
LPSTR str, DWORD data )
{
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( descr->heap, 0, descr->items ) / sizeof(*item);
if (descr->nb_items == max_items)
{
/* We need to grow the array */
max_items += LB_ARRAY_GRANULARITY;
if (!(item = HeapReAlloc( descr->heap, 0, descr->items,
max_items * sizeof(LB_ITEMDATA) )))
{
SEND_NOTIFICATION( wnd, 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 = (descr->lphc) ? ID_CB_LISTBOX : wnd->wIDmenu;
mis.CtlType = ODT_LISTBOX;
mis.CtlID = id;
mis.itemID = index;
mis.itemData = descr->items[index].data;
mis.itemHeight = descr->item_height;
SendMessageA( descr->owner, WM_MEASUREITEM, id, (LPARAM)&mis );
item->height = mis.itemHeight ? mis.itemHeight : 1;
TRACE("[%04x]: measure item %d (%s) = %d\n",
wnd->hwndSelf, index, str ? str : "", item->height );
}
/* Repaint the items */
LISTBOX_UpdateScroll( wnd, descr );
LISTBOX_InvalidateItems( wnd, descr, index );
/* Move selection and focused item */
/* If listbox was empty, set focus to the first item */
if (descr->nb_items == 1)
LISTBOX_SetCaretIndex( wnd, descr, 0, FALSE );
/* single select don't change selection index in win31 */
else if ((ISWIN31) && !(IS_MULTISELECT(descr)))
{
descr->selected_item++;
LISTBOX_SetSelection( wnd, 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( WND *wnd, LB_DESCR *descr, INT index,
LPCSTR str )
{
LPSTR new_str = NULL;
DWORD data = 0;
LRESULT ret;
if (HAS_STRINGS(descr))
{
if (!str) str="";
if (!(new_str = HEAP_strdupA( descr->heap, 0, str )))
{
SEND_NOTIFICATION( wnd, descr, LBN_ERRSPACE );
return LB_ERRSPACE;
}
}
else data = (DWORD)str;
if (index == -1) index = descr->nb_items;
if ((ret = LISTBOX_InsertItem( wnd, descr, index, new_str, data )) != 0)
{
if (new_str) HeapFree( descr->heap, 0, new_str );
return ret;
}
TRACE("[%04x]: added item %d '%s'\n",
wnd->hwndSelf, index, HAS_STRINGS(descr) ? new_str : "" );
return index;
}
/***********************************************************************
* LISTBOX_DeleteItem
*
* Delete the content of an item. 'index' must be a valid index.
*/
static void LISTBOX_DeleteItem( WND *wnd, LB_DESCR *descr, INT index )
{
/* 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) || descr->items[index].data)
{
DELETEITEMSTRUCT dis;
UINT id = (descr->lphc) ? ID_CB_LISTBOX : wnd->wIDmenu;
dis.CtlType = ODT_LISTBOX;
dis.CtlID = id;
dis.itemID = index;
dis.hwndItem = wnd->hwndSelf;
dis.itemData = descr->items[index].data;
SendMessageA( descr->owner, WM_DELETEITEM, id, (LPARAM)&dis );
}
if (HAS_STRINGS(descr) && descr->items[index].str)
HeapFree( descr->heap, 0, descr->items[index].str );
}
/***********************************************************************
* LISTBOX_RemoveItem
*
* Remove an item from the listbox and delete its content.
*/
static LRESULT LISTBOX_RemoveItem( WND *wnd, LB_DESCR *descr, INT index )
{
LB_ITEMDATA *item;
INT max_items;
if (index == -1) index = descr->nb_items - 1;
else if ((index < 0) || (index >= descr->nb_items)) return LB_ERR;
LISTBOX_DeleteItem( wnd, descr, index );
/* Remove the item */
item = &descr->items[index];
if (index < descr->nb_items-1)
RtlMoveMemory( item, item + 1,
(descr->nb_items - index - 1) * sizeof(LB_ITEMDATA) );
descr->nb_items--;
if (descr->anchor_item == descr->nb_items) descr->anchor_item--;
/* Shrink the item array if possible */
max_items = HeapSize( descr->heap, 0, descr->items ) / sizeof(LB_ITEMDATA);
if (descr->nb_items < max_items - 2*LB_ARRAY_GRANULARITY)
{
max_items -= LB_ARRAY_GRANULARITY;
item = HeapReAlloc( descr->heap, 0, descr->items,
max_items * sizeof(LB_ITEMDATA) );
if (item) descr->items = item;
}
/* Repaint the items */
LISTBOX_UpdateScroll( wnd, 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( wnd, 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( wnd, descr, descr->selected_item + 1, TRUE, FALSE);
}
}
LISTBOX_InvalidateItems( wnd, descr, index );
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_ResetContent
*/
static void LISTBOX_ResetContent( WND *wnd, LB_DESCR *descr )
{
INT i;
for (i = 0; i < descr->nb_items; i++) LISTBOX_DeleteItem( wnd, descr, i );
if (descr->items) HeapFree( descr->heap, 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_UpdateScroll( wnd, descr );
InvalidateRect( wnd->hwndSelf, NULL, TRUE );
}
/***********************************************************************
* LISTBOX_SetCount
*/
static LRESULT LISTBOX_SetCount( WND *wnd, LB_DESCR *descr, INT count )
{
LRESULT ret;
if (HAS_STRINGS(descr)) return LB_ERR;
/* FIXME: this is far from optimal... */
if (count > descr->nb_items)
{
while (count > descr->nb_items)
if ((ret = LISTBOX_InsertString( wnd, descr, -1, 0 )) < 0)
return ret;
}
else if (count < descr->nb_items)
{
while (count < descr->nb_items)
if ((ret = LISTBOX_RemoveItem( wnd, descr, -1 )) < 0)
return ret;
}
return LB_OKAY;
}
/***********************************************************************
* LISTBOX_Directory
*/
static LRESULT LISTBOX_Directory( WND *wnd, LB_DESCR *descr, UINT attrib,
LPCSTR filespec, BOOL long_names )
{
HANDLE handle;
LRESULT ret = LB_OKAY;
WIN32_FIND_DATAA entry;
int pos;
if ((handle = FindFirstFileA(filespec,&entry)) == INVALID_HANDLE_VALUE)
{
if (GetLastError() != ERROR_NO_MORE_FILES) return LB_ERR;
}
else
{
do
{
char buffer[270];
if (entry.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
{
if (!(attrib & DDL_DIRECTORY) ||
!strcmp( entry.cAlternateFileName, "." )) continue;
if (long_names) sprintf( buffer, "[%s]", entry.cFileName );
else sprintf( buffer, "[%s]", entry.cAlternateFileName );
}
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) strcpy( buffer, entry.cFileName );
else strcpy( buffer, entry.cAlternateFileName );
}
if (!long_names) CharLowerA( buffer );
pos = LISTBOX_FindFileStrPos( wnd, descr, buffer );
if ((ret = LISTBOX_InsertString( wnd, descr, pos, buffer )) < 0)
break;
} while (FindNextFileA( handle, &entry ));
FindClose( handle );
}
if ((ret >= 0) && (attrib & DDL_DRIVES))
{
char buffer[] = "[-a-]";
int drive;
for (drive = 0; drive < MAX_DOS_DRIVES; drive++, buffer[2]++)
{
if (!DRIVE_IsValid(drive)) continue;
if ((ret = LISTBOX_InsertString( wnd, descr, -1, buffer )) < 0)
break;
}
}
return ret;
}
/***********************************************************************
* LISTBOX_HandleVScroll
*/
static LRESULT LISTBOX_HandleVScroll( WND *wnd, LB_DESCR *descr,
WPARAM wParam, LPARAM lParam )
{
SCROLLINFO info;
if (descr->style & LBS_MULTICOLUMN) return 0;
switch(LOWORD(wParam))
{
case SB_LINEUP:
LISTBOX_SetTopItem( wnd, descr, descr->top_item - 1, TRUE );
break;
case SB_LINEDOWN:
LISTBOX_SetTopItem( wnd, descr, descr->top_item + 1, TRUE );
break;
case SB_PAGEUP:
LISTBOX_SetTopItem( wnd, descr, descr->top_item -
LISTBOX_GetCurrentPageSize( wnd, descr ), TRUE );
break;
case SB_PAGEDOWN:
LISTBOX_SetTopItem( wnd, descr, descr->top_item +
LISTBOX_GetCurrentPageSize( wnd, descr ), TRUE );
break;
case SB_THUMBPOSITION:
LISTBOX_SetTopItem( wnd, descr, HIWORD(wParam), TRUE );
break;
case SB_THUMBTRACK:
info.cbSize = sizeof(info);
info.fMask = SIF_TRACKPOS;
GetScrollInfo( wnd->hwndSelf, SB_VERT, &info );
LISTBOX_SetTopItem( wnd, descr, info.nTrackPos, TRUE );
break;
case SB_TOP:
LISTBOX_SetTopItem( wnd, descr, 0, TRUE );
break;
case SB_BOTTOM:
LISTBOX_SetTopItem( wnd, descr, descr->nb_items, TRUE );
break;
}
return 0;
}
/***********************************************************************
* LISTBOX_HandleHScroll
*/
static LRESULT LISTBOX_HandleHScroll( WND *wnd, LB_DESCR *descr,
WPARAM wParam, LPARAM lParam )
{
SCROLLINFO info;
INT page;
if (descr->style & LBS_MULTICOLUMN)
{
switch(LOWORD(wParam))
{
case SB_LINELEFT:
LISTBOX_SetTopItem( wnd, descr, descr->top_item-descr->page_size,
TRUE );
break;
case SB_LINERIGHT:
LISTBOX_SetTopItem( wnd, 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( wnd, 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( wnd, descr,
descr->top_item + page * descr->page_size, TRUE );
break;
case SB_THUMBPOSITION:
LISTBOX_SetTopItem( wnd, descr, HIWORD(wParam)*descr->page_size,
TRUE );
break;
case SB_THUMBTRACK:
info.cbSize = sizeof(info);
info.fMask = SIF_TRACKPOS;
GetScrollInfo( wnd->hwndSelf, SB_VERT, &info );
LISTBOX_SetTopItem( wnd, descr, info.nTrackPos*descr->page_size,
TRUE );
break;
case SB_LEFT:
LISTBOX_SetTopItem( wnd, descr, 0, TRUE );
break;
case SB_RIGHT:
LISTBOX_SetTopItem( wnd, descr, descr->nb_items, TRUE );
break;
}
}
else if (descr->horz_extent)
{
switch(LOWORD(wParam))
{
case SB_LINELEFT:
LISTBOX_SetHorizontalPos( wnd, descr, descr->horz_pos - 1 );
break;
case SB_LINERIGHT:
LISTBOX_SetHorizontalPos( wnd, descr, descr->horz_pos + 1 );
break;
case SB_PAGELEFT:
LISTBOX_SetHorizontalPos( wnd, descr,
descr->horz_pos - descr->width );
break;
case SB_PAGERIGHT:
LISTBOX_SetHorizontalPos( wnd, descr,
descr->horz_pos + descr->width );
break;
case SB_THUMBPOSITION:
LISTBOX_SetHorizontalPos( wnd, descr, HIWORD(wParam) );
break;
case SB_THUMBTRACK:
info.cbSize = sizeof(info);
info.fMask = SIF_TRACKPOS;
GetScrollInfo( wnd->hwndSelf, SB_HORZ, &info );
LISTBOX_SetHorizontalPos( wnd, descr, info.nTrackPos );
break;
case SB_LEFT:
LISTBOX_SetHorizontalPos( wnd, descr, 0 );
break;
case SB_RIGHT:
LISTBOX_SetHorizontalPos( wnd, descr,
descr->horz_extent - descr->width );
break;
}
}
return 0;
}
/***********************************************************************
* LISTBOX_HandleLButtonDown
*/
static LRESULT LISTBOX_HandleLButtonDown( WND *wnd, LB_DESCR *descr,
WPARAM wParam, INT x, INT y )
{
INT index = LISTBOX_GetItemFromPoint( wnd, descr, x, y );
TRACE("[%04x]: lbuttondown %d,%d item %d\n",
wnd->hwndSelf, x, y, index );
if (!descr->caret_on && (GetFocus() == wnd->hwndSelf)) return 0;
if (index != -1)
{
if (descr->style & LBS_EXTENDEDSEL)
{
if (!(wParam & MK_SHIFT)) descr->anchor_item = index;
if (wParam & MK_CONTROL)
{
LISTBOX_SetCaretIndex( wnd, descr, index, FALSE );
LISTBOX_SetSelection( wnd, descr, index,
!descr->items[index].selected, FALSE );
}
else LISTBOX_MoveCaret( wnd, descr, index, FALSE );
}
else
{
LISTBOX_MoveCaret( wnd, descr, index, FALSE );
LISTBOX_SetSelection( wnd, descr, index,
(!(descr->style & LBS_MULTIPLESEL) ||
!descr->items[index].selected), FALSE );
}
}
if( !descr->lphc ) SetFocus( wnd->hwndSelf );
else SetFocus( (descr->lphc->hWndEdit) ? descr->lphc->hWndEdit
: descr->lphc->self->hwndSelf ) ;
descr->captured = TRUE;
SetCapture( wnd->hwndSelf );
if (index != -1 && !descr->lphc)
{
if (descr->style & LBS_NOTIFY )
SendMessageA( descr->owner, WM_LBTRACKPOINT, index,
MAKELPARAM( x, y ) );
if (wnd->dwExStyle & WS_EX_DRAGDETECT)
{
POINT pt;
pt.x = x;
pt.y = y;
if (DragDetect( wnd->hwndSelf, pt ))
SendMessageA( descr->owner, WM_BEGINDRAG, 0, 0 );
}
}
return 0;
}
/*************************************************************************
* LISTBOX_HandleLButtonDownCombo [Internal]
*
* Process LButtonDown message for the ComboListBox
*
* PARAMS
* pWnd [I] The windows internal structure
* pDescr [I] The ListBox internal structure
* wParam [I] Key Flag (WM_LBUTTONDOWN doc for more info)
* x [I] X Mouse Coordinate
* y [I] Y Mouse Coordinate
*
* RETURNS
* 0 since we are processing the WM_LBUTTONDOWN Message
*
* NOTES
* This function is only to be used when a ListBox is a ComboListBox
*/
static LRESULT LISTBOX_HandleLButtonDownCombo( WND *pWnd, LB_DESCR *pDescr,
WPARAM wParam, INT x, INT y)
{
RECT clientRect, screenRect;
POINT mousePos;
mousePos.x = x;
mousePos.y = y;
GetClientRect(pWnd->hwndSelf, &clientRect);
if(PtInRect(&clientRect, mousePos))
{
/* MousePos is in client, resume normal processing */
return LISTBOX_HandleLButtonDown( pWnd, pDescr, wParam, x, y);
}
else
{
POINT screenMousePos;
HWND hWndOldCapture;
/* Check the Non-Client Area */
screenMousePos = mousePos;
hWndOldCapture = GetCapture();
ReleaseCapture();
GetWindowRect(pWnd->hwndSelf, &screenRect);
ClientToScreen(pWnd->hwndSelf, &screenMousePos);
if(!PtInRect(&screenRect, screenMousePos))
{
/* Close The Drop Down */
SEND_NOTIFICATION( pWnd, pDescr, LBN_SELCANCEL );
return 0;
}
else
{
/* Check to see the NC is a scrollbar */
INT nHitTestType=0;
/* Check Vertical scroll bar */
if (pWnd->dwStyle & WS_VSCROLL)
{
clientRect.right += GetSystemMetrics(SM_CXVSCROLL);
if (PtInRect( &clientRect, mousePos ))
{
nHitTestType = HTVSCROLL;
}
}
/* Check horizontal scroll bar */
if (pWnd->dwStyle & 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)
{
SendMessageA(pWnd->hwndSelf, 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( WND *wnd, LB_DESCR *descr )
{
if (LISTBOX_Timer != LB_TIMER_NONE)
KillSystemTimer( wnd->hwndSelf, LB_TIMER_ID );
LISTBOX_Timer = LB_TIMER_NONE;
if (descr->captured)
{
descr->captured = FALSE;
if (GetCapture() == wnd->hwndSelf) ReleaseCapture();
if ((descr->style & LBS_NOTIFY) && descr->nb_items)
SEND_NOTIFICATION( wnd, descr, LBN_SELCHANGE );
}
return 0;
}
/***********************************************************************
* LISTBOX_HandleTimer
*
* Handle scrolling upon a timer event.
* Return TRUE if scrolling should continue.
*/
static LRESULT LISTBOX_HandleTimer( WND *wnd, LB_DESCR *descr,
INT index, TIMER_DIRECTION dir )
{
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( wnd, 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( wnd, descr, index, FALSE );
return TRUE;
}
/***********************************************************************
* LISTBOX_HandleSystemTimer
*
* WM_SYSTIMER handler.
*/
static LRESULT LISTBOX_HandleSystemTimer( WND *wnd, LB_DESCR *descr )
{
if (!LISTBOX_HandleTimer( wnd, descr, descr->focus_item, LISTBOX_Timer ))
{
KillSystemTimer( wnd->hwndSelf, LB_TIMER_ID );
LISTBOX_Timer = LB_TIMER_NONE;
}
return 0;
}
/***********************************************************************
* LISTBOX_HandleMouseMove
*
* WM_MOUSEMOVE handler.
*/
static void LISTBOX_HandleMouseMove( WND *wnd, LB_DESCR *descr,
INT x, INT y )
{
INT index;
TIMER_DIRECTION dir;
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 dir = LB_TIMER_NONE; /* inside */
}
else
{
if (y < 0) dir = LB_TIMER_UP; /* above */
else if (y >= descr->height) dir = LB_TIMER_DOWN; /* below */
else dir = LB_TIMER_NONE; /* inside */
}
index = LISTBOX_GetItemFromPoint( wnd, descr, x, y );
if (index == -1) index = descr->focus_item;
if (!LISTBOX_HandleTimer( wnd, descr, index, dir )) dir = LB_TIMER_NONE;
/* Start/stop the system timer */
if (dir != LB_TIMER_NONE)
SetSystemTimer( wnd->hwndSelf, LB_TIMER_ID, LB_SCROLL_TIMEOUT, NULL);
else if (LISTBOX_Timer != LB_TIMER_NONE)
KillSystemTimer( wnd->hwndSelf, LB_TIMER_ID );
LISTBOX_Timer = dir;
}
/***********************************************************************
* LISTBOX_HandleKeyDown
*/
static LRESULT LISTBOX_HandleKeyDown( WND *wnd, LB_DESCR *descr, WPARAM wParam )
{
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 = SendMessageA( descr->owner, WM_VKEYTOITEM,
MAKEWPARAM(LOWORD(wParam), descr->focus_item),
wnd->hwndSelf );
if (caret == -2) return 0;
}
if (caret == -1) switch(wParam)
{
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(wnd,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(wnd,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( wnd, 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))
descr->anchor_item = caret;
LISTBOX_MoveCaret( wnd, descr, caret, TRUE );
LISTBOX_SetSelection( wnd, descr, caret, TRUE, FALSE);
if (descr->style & LBS_NOTIFY)
{
if( descr->lphc && CB_GETTYPE(descr->lphc) != CBS_SIMPLE )
{
/* make sure that combo parent doesn't hide us */
descr->lphc->wState |= CBF_NOROLLUP;
}
if (descr->nb_items) SEND_NOTIFICATION( wnd, descr, LBN_SELCHANGE );
}
}
return 0;
}
/***********************************************************************
* LISTBOX_HandleChar
*/
static LRESULT LISTBOX_HandleChar( WND *wnd, LB_DESCR *descr,
WPARAM wParam )
{
INT caret = -1;
char str[2];
str[0] = wParam & 0xff;
str[1] = '\0';
if (descr->style & LBS_WANTKEYBOARDINPUT)
{
caret = SendMessageA( descr->owner, WM_CHARTOITEM,
MAKEWPARAM(LOWORD(wParam), descr->focus_item),
wnd->hwndSelf );
if (caret == -2) return 0;
}
if (caret == -1)
caret = LISTBOX_FindString( wnd, descr, descr->focus_item, str, FALSE);
if (caret != -1)
{
if ((!IS_MULTISELECT(descr)) && descr->selected_item == -1)
LISTBOX_SetSelection( wnd, descr, caret, TRUE, FALSE);
LISTBOX_MoveCaret( wnd, descr, caret, TRUE );
if ((descr->style & LBS_NOTIFY) && descr->nb_items)
SEND_NOTIFICATION( wnd, descr, LBN_SELCHANGE );
}
return 0;
}
/***********************************************************************
* LISTBOX_Create
*/
static BOOL LISTBOX_Create( WND *wnd, LPHEADCOMBO lphc )
{
LB_DESCR *descr;
MEASUREITEMSTRUCT mis;
RECT rect;
if (!(descr = HeapAlloc( GetProcessHeap(), 0, sizeof(*descr) )))
return FALSE;
if (!(descr->heap = HeapCreate( 0, 0x10000, 0 )))
{
HeapFree( GetProcessHeap(), 0, descr );
return FALSE;
}
GetClientRect( wnd->hwndSelf, &rect );
descr->owner = GetParent( wnd->hwndSelf );
descr->style = wnd->dwStyle;
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 = (wnd->dwStyle & WS_HSCROLL) ? 1 : 0;
descr->horz_pos = 0;
descr->nb_tabs = 0;
descr->tabs = NULL;
descr->caret_on = TRUE;
descr->captured = FALSE;
descr->font = 0;
descr->locale = 0; /* FIXME */
descr->lphc = lphc;
if( ( GetExpWinVer16( wnd->hInstance ) & 0xFF00 ) == 0x0300
&& ( descr->style & ( WS_VSCROLL | WS_HSCROLL ) ) )
{
/* Win95 document "List Box Differences" from MSDN:
If a list box in a version 3.x application has either the
WS_HSCROLL or WS_VSCROLL style, the list box receives both
horizontal and vertical scroll bars.
*/
descr->style |= WS_VSCROLL | WS_HSCROLL;
}
if( lphc )
{
TRACE_(combo)("[%04x]: resetting owner %04x -> %04x\n",
wnd->hwndSelf, descr->owner, lphc->self->hwndSelf );
descr->owner = lphc->self->hwndSelf;
}
*(LB_DESCR **)wnd->wExtra = descr;
/* 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;
descr->item_height = LISTBOX_SetFont( wnd, 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 = (descr->lphc ) ? ID_CB_LISTBOX : wnd->wIDmenu;
mis.CtlType = ODT_LISTBOX;
mis.CtlID = id;
mis.itemID = -1;
mis.itemWidth = 0;
mis.itemData = 0;
mis.itemHeight = descr->item_height;
SendMessageA( descr->owner, WM_MEASUREITEM, id, (LPARAM)&mis );
descr->item_height = mis.itemHeight ? mis.itemHeight : 1;
}
}
return TRUE;
}
/***********************************************************************
* LISTBOX_Destroy
*/
static BOOL LISTBOX_Destroy( WND *wnd, LB_DESCR *descr )
{
LISTBOX_ResetContent( wnd, descr );
HeapDestroy( descr->heap );
HeapFree( GetProcessHeap(), 0, descr );
wnd->wExtra[0] = 0;
return TRUE;
}
/***********************************************************************
* ListBoxWndProc
*/
static inline LRESULT WINAPI ListBoxWndProc_locked( WND* wnd, UINT msg,
WPARAM wParam, LPARAM lParam )
{
LRESULT ret;
LB_DESCR *descr;
HWND hwnd = wnd->hwndSelf;
if (!wnd) return 0;
if (!(descr = *(LB_DESCR **)wnd->wExtra))
{
switch (msg)
{
case WM_CREATE:
{
if (!LISTBOX_Create( wnd, NULL ))
return -1;
TRACE("creating wnd=%04x descr=%p\n",
hwnd, *(LB_DESCR **)wnd->wExtra );
return 0;
}
case WM_NCCREATE:
{
/*
* When a listbox is not in a combobox and the look
* is win95, the WS_BORDER style is replaced with
* the WS_EX_CLIENTEDGE style.
*/
if ( (TWEAK_WineLook > WIN31_LOOK) &&
(wnd->dwStyle & WS_BORDER) )
{
wnd->dwExStyle |= WS_EX_CLIENTEDGE;
wnd->dwStyle &= ~ WS_BORDER;
}
}
}
/* Ignore all other messages before we get a WM_CREATE */
return DefWindowProcA( hwnd, msg, wParam, lParam );
}
TRACE("[%04x]: msg %s wp %08x lp %08lx\n",
wnd->hwndSelf, SPY_GetMsgName(msg), wParam, lParam );
switch(msg)
{
case LB_RESETCONTENT16:
case LB_RESETCONTENT:
LISTBOX_ResetContent( wnd, descr );
return 0;
case LB_ADDSTRING16:
if (HAS_STRINGS(descr)) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
/* fall through */
case LB_ADDSTRING:
wParam = LISTBOX_FindStringPos( wnd, descr, (LPCSTR)lParam, FALSE );
return LISTBOX_InsertString( wnd, descr, wParam, (LPCSTR)lParam );
case LB_INSERTSTRING16:
if (HAS_STRINGS(descr)) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
wParam = (INT)(INT16)wParam;
/* fall through */
case LB_INSERTSTRING:
return LISTBOX_InsertString( wnd, descr, wParam, (LPCSTR)lParam );
case LB_ADDFILE16:
if (HAS_STRINGS(descr)) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
/* fall through */
case LB_ADDFILE:
wParam = LISTBOX_FindFileStrPos( wnd, descr, (LPCSTR)lParam );
return LISTBOX_InsertString( wnd, descr, wParam, (LPCSTR)lParam );
case LB_DELETESTRING16:
case LB_DELETESTRING:
if (LISTBOX_RemoveItem( wnd, descr, wParam) != LB_ERR)
return descr->nb_items;
else
return LB_ERR;
case LB_GETITEMDATA16:
case LB_GETITEMDATA:
if (((INT)wParam < 0) || ((INT)wParam >= descr->nb_items))
return LB_ERR;
return descr->items[wParam].data;
case LB_SETITEMDATA16:
case LB_SETITEMDATA:
if (((INT)wParam < 0) || ((INT)wParam >= descr->nb_items))
return LB_ERR;
descr->items[wParam].data = (DWORD)lParam;
return LB_OKAY;
case LB_GETCOUNT16:
case LB_GETCOUNT:
return descr->nb_items;
case LB_GETTEXT16:
lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
/* fall through */
case LB_GETTEXT:
return LISTBOX_GetText( wnd, descr, wParam, (LPSTR)lParam );
case LB_GETTEXTLEN16:
/* fall through */
case LB_GETTEXTLEN:
if (wParam >= descr->nb_items)
return LB_ERR;
return (HAS_STRINGS(descr) ? strlen(descr->items[wParam].str)
: sizeof(DWORD));
case LB_GETCURSEL16:
case LB_GETCURSEL:
if (descr->nb_items==0)
return LB_ERR;
if (!IS_MULTISELECT(descr))
return descr->selected_item;
/* else */
if (descr->selected_item!=-1)
return descr->selected_item;
/* else */
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_GETTOPINDEX16:
case LB_GETTOPINDEX:
return descr->top_item;
case LB_GETITEMHEIGHT16:
case LB_GETITEMHEIGHT:
return LISTBOX_GetItemHeight( wnd, descr, wParam );
case LB_SETITEMHEIGHT16:
lParam = LOWORD(lParam);
/* fall through */
case LB_SETITEMHEIGHT:
return LISTBOX_SetItemHeight( wnd, descr, wParam, lParam );
case LB_ITEMFROMPOINT:
{
POINT pt;
RECT rect;
pt.x = LOWORD(lParam);
pt.y = HIWORD(lParam);
rect.left = 0;
rect.top = 0;
rect.right = descr->width;
rect.bottom = descr->height;
return MAKELONG( LISTBOX_GetItemFromPoint(wnd, descr, pt.x, pt.y),
!PtInRect( &rect, pt ) );
}
case LB_SETCARETINDEX16:
case LB_SETCARETINDEX:
if ((!IS_MULTISELECT(descr)) && (descr->selected_item != -1)) return LB_ERR;
if (LISTBOX_SetCaretIndex( wnd, descr, wParam, !lParam ) == LB_ERR)
return LB_ERR;
else if (ISWIN31)
return wParam;
else
return LB_OKAY;
case LB_GETCARETINDEX16:
case LB_GETCARETINDEX:
return descr->focus_item;
case LB_SETTOPINDEX16:
case LB_SETTOPINDEX:
return LISTBOX_SetTopItem( wnd, descr, wParam, TRUE );
case LB_SETCOLUMNWIDTH16:
case LB_SETCOLUMNWIDTH:
return LISTBOX_SetColumnWidth( wnd, descr, wParam );
case LB_GETITEMRECT16:
{
RECT rect;
ret = LISTBOX_GetItemRect( wnd, descr, (INT16)wParam, &rect );
CONV_RECT32TO16( &rect, (RECT16 *)PTR_SEG_TO_LIN(lParam) );
}
return ret;
case LB_GETITEMRECT:
return LISTBOX_GetItemRect( wnd, descr, wParam, (RECT *)lParam );
case LB_FINDSTRING16:
wParam = (INT)(INT16)wParam;
if (HAS_STRINGS(descr)) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
/* fall through */
case LB_FINDSTRING:
return LISTBOX_FindString( wnd, descr, wParam, (LPCSTR)lParam, FALSE );
case LB_FINDSTRINGEXACT16:
wParam = (INT)(INT16)wParam;
if (HAS_STRINGS(descr)) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
/* fall through */
case LB_FINDSTRINGEXACT:
return LISTBOX_FindString( wnd, descr, wParam, (LPCSTR)lParam, TRUE );
case LB_SELECTSTRING16:
wParam = (INT)(INT16)wParam;
if (HAS_STRINGS(descr)) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
/* fall through */
case LB_SELECTSTRING:
{
INT index = LISTBOX_FindString( wnd, descr, wParam,
(LPCSTR)lParam, FALSE );
if (index == LB_ERR)
return LB_ERR;
LISTBOX_SetSelection( wnd, descr, index, TRUE, FALSE );
return index;
}
case LB_GETSEL16:
wParam = (INT)(INT16)wParam;
/* fall through */
case LB_GETSEL:
if (((INT)wParam < 0) || ((INT)wParam >= descr->nb_items))
return LB_ERR;
return descr->items[wParam].selected;
case LB_SETSEL16:
lParam = (INT)(INT16)lParam;
/* fall through */
case LB_SETSEL:
return LISTBOX_SetSelection( wnd, descr, lParam, wParam, FALSE );
case LB_SETCURSEL16:
wParam = (INT)(INT16)wParam;
/* fall through */
case LB_SETCURSEL:
if (IS_MULTISELECT(descr)) return LB_ERR;
LISTBOX_SetCaretIndex( wnd, descr, wParam, TRUE );
return LISTBOX_SetSelection( wnd, descr, wParam, TRUE, FALSE );
case LB_GETSELCOUNT16:
case LB_GETSELCOUNT:
return LISTBOX_GetSelCount( wnd, descr );
case LB_GETSELITEMS16:
return LISTBOX_GetSelItems16( wnd, descr, wParam,
(LPINT16)PTR_SEG_TO_LIN(lParam) );
case LB_GETSELITEMS:
return LISTBOX_GetSelItems( wnd, descr, wParam, (LPINT)lParam );
case LB_SELITEMRANGE16:
case LB_SELITEMRANGE:
if (LOWORD(lParam) <= HIWORD(lParam))
return LISTBOX_SelectItemRange( wnd, descr, LOWORD(lParam),
HIWORD(lParam), wParam );
else
return LISTBOX_SelectItemRange( wnd, descr, HIWORD(lParam),
LOWORD(lParam), wParam );
case LB_SELITEMRANGEEX16:
case LB_SELITEMRANGEEX:
if ((INT)lParam >= (INT)wParam)
return LISTBOX_SelectItemRange( wnd, descr, wParam, lParam, TRUE );
else
return LISTBOX_SelectItemRange( wnd, descr, lParam, wParam, FALSE);
case LB_GETHORIZONTALEXTENT16:
case LB_GETHORIZONTALEXTENT:
return descr->horz_extent;
case LB_SETHORIZONTALEXTENT16:
case LB_SETHORIZONTALEXTENT:
return LISTBOX_SetHorizontalExtent( wnd, descr, wParam );
case LB_GETANCHORINDEX16:
case LB_GETANCHORINDEX:
return descr->anchor_item;
case LB_SETANCHORINDEX16:
wParam = (INT)(INT16)wParam;
/* fall through */
case LB_SETANCHORINDEX:
if (((INT)wParam < -1) || ((INT)wParam >= descr->nb_items))
return LB_ERR;
descr->anchor_item = (INT)wParam;
return LB_OKAY;
case LB_DIR16:
return LISTBOX_Directory( wnd, descr, wParam,
(LPCSTR)PTR_SEG_TO_LIN(lParam), FALSE );
case LB_DIR:
return LISTBOX_Directory( wnd, descr, wParam, (LPCSTR)lParam, TRUE );
case LB_GETLOCALE:
return descr->locale;
case LB_SETLOCALE:
descr->locale = (LCID)wParam; /* FIXME: should check for valid lcid */
return LB_OKAY;
case LB_INITSTORAGE:
return LISTBOX_InitStorage( wnd, descr, wParam, (DWORD)lParam );
case LB_SETCOUNT:
return LISTBOX_SetCount( wnd, descr, (INT)wParam );
case LB_SETTABSTOPS16:
return LISTBOX_SetTabStops( wnd, descr, (INT)(INT16)wParam,
(LPINT)PTR_SEG_TO_LIN(lParam), TRUE );
case LB_SETTABSTOPS:
return LISTBOX_SetTabStops( wnd, descr, wParam, (LPINT)lParam, FALSE );
case LB_CARETON16:
case LB_CARETON:
if (descr->caret_on)
return LB_OKAY;
descr->caret_on = TRUE;
if ((descr->focus_item != -1) && (GetFocus() == wnd->hwndSelf))
LISTBOX_RepaintItem( wnd, descr, descr->focus_item, ODA_FOCUS );
return LB_OKAY;
case LB_CARETOFF16:
case LB_CARETOFF:
if (!descr->caret_on)
return LB_OKAY;
descr->caret_on = FALSE;
if ((descr->focus_item != -1) && (GetFocus() == wnd->hwndSelf))
LISTBOX_RepaintItem( wnd, descr, descr->focus_item, ODA_FOCUS );
return LB_OKAY;
case WM_DESTROY:
return LISTBOX_Destroy( wnd, descr );
case WM_ENABLE:
InvalidateRect( hwnd, NULL, TRUE );
return 0;
case WM_SETREDRAW:
LISTBOX_SetRedraw( wnd, descr, wParam != 0 );
return 0;
case WM_GETDLGCODE:
return DLGC_WANTARROWS | DLGC_WANTCHARS;
case WM_PAINT:
{
PAINTSTRUCT ps;
HDC hdc = ( wParam ) ? ((HDC)wParam)
: BeginPaint( hwnd, &ps );
ret = LISTBOX_Paint( wnd, descr, hdc );
if( !wParam ) EndPaint( hwnd, &ps );
}
return ret;
case WM_SIZE:
LISTBOX_UpdateSize( wnd, descr );
return 0;
case WM_GETFONT:
return descr->font;
case WM_SETFONT:
LISTBOX_SetFont( wnd, descr, (HFONT)wParam );
if (lParam) InvalidateRect( wnd->hwndSelf, 0, TRUE );
return 0;
case WM_SETFOCUS:
descr->caret_on = TRUE;
if (descr->focus_item != -1)
LISTBOX_RepaintItem( wnd, descr, descr->focus_item, ODA_FOCUS );
SEND_NOTIFICATION( wnd, descr, LBN_SETFOCUS );
return 0;
case WM_KILLFOCUS:
if ((descr->focus_item != -1) && descr->caret_on)
LISTBOX_RepaintItem( wnd, descr, descr->focus_item, ODA_FOCUS );
SEND_NOTIFICATION( wnd, descr, LBN_KILLFOCUS );
return 0;
case WM_HSCROLL:
return LISTBOX_HandleHScroll( wnd, descr, wParam, lParam );
case WM_VSCROLL:
return LISTBOX_HandleVScroll( wnd, descr, wParam, lParam );
case WM_LBUTTONDOWN:
return LISTBOX_HandleLButtonDown( wnd, descr, wParam,
(INT16)LOWORD(lParam),
(INT16)HIWORD(lParam) );
case WM_LBUTTONDBLCLK:
if (descr->style & LBS_NOTIFY)
SEND_NOTIFICATION( wnd, descr, LBN_DBLCLK );
return 0;
case WM_MOUSEMOVE:
if (GetCapture() == hwnd)
LISTBOX_HandleMouseMove( wnd, descr, (INT16)LOWORD(lParam),
(INT16)HIWORD(lParam) );
return 0;
case WM_LBUTTONUP:
return LISTBOX_HandleLButtonUp( wnd, descr );
case WM_KEYDOWN:
return LISTBOX_HandleKeyDown( wnd, descr, wParam );
case WM_CHAR:
return LISTBOX_HandleChar( wnd, descr, wParam );
case WM_SYSTIMER:
return LISTBOX_HandleSystemTimer( wnd, descr );
case WM_ERASEBKGND:
if (IS_OWNERDRAW(descr))
{
RECT rect;
HBRUSH hbrush = SendMessageA( descr->owner, WM_CTLCOLORLISTBOX,
wParam, (LPARAM)wnd->hwndSelf );
GetClientRect(hwnd, &rect);
if (hbrush) FillRect( (HDC)wParam, &rect, hbrush );
}
return 1;
case WM_DROPFILES:
if( !descr->lphc )
return SendMessageA( descr->owner, msg, wParam, lParam );
break;
case WM_DROPOBJECT:
case WM_QUERYDROPOBJECT:
case WM_DRAGSELECT:
case WM_DRAGMOVE:
if( !descr->lphc )
{
LPDRAGINFO dragInfo = (LPDRAGINFO)PTR_SEG_TO_LIN( (SEGPTR)lParam );
dragInfo->l = LISTBOX_GetItemFromPoint( wnd, descr, dragInfo->pt.x,
dragInfo->pt.y );
return SendMessageA( descr->owner, msg, wParam, lParam );
}
break;
default:
if ((msg >= WM_USER) && (msg < 0xc000))
WARN("[%04x]: unknown msg %04x wp %08x lp %08lx\n",
hwnd, msg, wParam, lParam );
return DefWindowProcA( hwnd, msg, wParam, lParam );
}
return 0;
}
/***********************************************************************
* ListBoxWndProc
*
* This is just a wrapper for the real wndproc, it only does window locking
* and unlocking.
*/
LRESULT WINAPI ListBoxWndProc( HWND hwnd, UINT msg,
WPARAM wParam, LPARAM lParam )
{
WND* wndPtr = WIN_FindWndPtr( hwnd );
LRESULT res = ListBoxWndProc_locked(wndPtr,msg,wParam,lParam);
WIN_ReleaseWndPtr(wndPtr);
return res;
}
/***********************************************************************
* COMBO_Directory
*/
LRESULT COMBO_Directory( LPHEADCOMBO lphc, UINT attrib, LPSTR dir, BOOL bLong)
{
WND *wnd = WIN_FindWndPtr( lphc->hWndLBox );
if( wnd )
{
LB_DESCR *descr = *(LB_DESCR **)wnd->wExtra;
if( descr )
{
LRESULT lRet = LISTBOX_Directory( wnd, descr, attrib, dir, bLong );
RedrawWindow( lphc->self->hwndSelf, NULL, 0,
RDW_INVALIDATE | RDW_ERASE | RDW_UPDATENOW );
WIN_ReleaseWndPtr(wnd);
return lRet;
}
WIN_ReleaseWndPtr(wnd);
}
return CB_ERR;
}
/***********************************************************************
* ComboLBWndProc_locked
*
* The real combo listbox wndproc, but called with locked WND struct.
*/
static inline LRESULT WINAPI ComboLBWndProc_locked( WND* wnd, UINT msg,
WPARAM wParam, LPARAM lParam )
{
LRESULT lRet = 0;
HWND hwnd = wnd->hwndSelf;
if (wnd)
{
LB_DESCR *descr = *(LB_DESCR **)wnd->wExtra;
TRACE_(combo)("[%04x]: msg %s wp %08x lp %08lx\n",
wnd->hwndSelf, SPY_GetMsgName(msg), wParam, lParam );
if( descr || msg == WM_CREATE )
{
LPHEADCOMBO lphc = (descr) ? descr->lphc : NULL;
switch( msg )
{
case WM_CREATE:
#define lpcs ((LPCREATESTRUCTA)lParam)
TRACE_(combo)("\tpassed parent handle = 0x%08x\n",
(UINT)lpcs->lpCreateParams);
lphc = (LPHEADCOMBO)(lpcs->lpCreateParams);
#undef lpcs
return LISTBOX_Create( wnd, lphc );
case WM_MOUSEMOVE:
if ( (TWEAK_WineLook > WIN31_LOOK) &&
(CB_GETTYPE(lphc) != CBS_SIMPLE) )
{
POINT mousePos;
BOOL captured;
RECT clientRect;
mousePos.x = (INT16)LOWORD(lParam);
mousePos.y = (INT16)HIWORD(lParam);
/*
* If we are in a dropdown combobox, we simulate that
* the mouse is captured to show the tracking of the item.
*/
GetClientRect(hwnd, &clientRect);
if (PtInRect( &clientRect, mousePos ))
{
captured = descr->captured;
descr->captured = TRUE;
LISTBOX_HandleMouseMove( wnd, descr,
mousePos.x, mousePos.y);
descr->captured = captured;
}
else
{
LISTBOX_HandleMouseMove( wnd, descr,
mousePos.x, mousePos.y);
}
return 0;
}
else
{
/*
* If we are in Win3.1 look, go with the default behavior.
*/
return ListBoxWndProc( hwnd, msg, wParam, lParam );
}
case WM_LBUTTONUP:
if (TWEAK_WineLook > WIN31_LOOK)
{
POINT mousePos;
RECT clientRect;
/*
* If the mouse button "up" is not in the listbox,
* we make sure there is no selection by re-selecting the
* item that was selected when the listbox was made visible.
*/
mousePos.x = (INT16)LOWORD(lParam);
mousePos.y = (INT16)HIWORD(lParam);
GetClientRect(hwnd, &clientRect);
/*
* When the user clicks outside the combobox and the focus
* is lost, the owning combobox will send a fake buttonup with
* 0xFFFFFFF as the mouse location, we must also revert the
* selection to the original selection.
*/
if ( (lParam == 0xFFFFFFFF) ||
(!PtInRect( &clientRect, mousePos )) )
{
LISTBOX_MoveCaret( wnd,
descr,
lphc->droppedIndex,
FALSE );
}
}
return LISTBOX_HandleLButtonUp( wnd, descr );
case WM_LBUTTONDOWN:
return LISTBOX_HandleLButtonDownCombo(wnd, descr, wParam,
(INT16)LOWORD(lParam),
(INT16)HIWORD(lParam) );
case WM_MOUSEACTIVATE:
return MA_NOACTIVATE;
case WM_NCACTIVATE:
return FALSE;
case WM_KEYDOWN:
if( CB_GETTYPE(lphc) != CBS_SIMPLE )
{
/* for some reason(?) Windows makes it possible to
* show/hide ComboLBox by sending it WM_KEYDOWNs */
if( (!(lphc->wState & CBF_EUI) && wParam == VK_F4) ||
( (lphc->wState & CBF_EUI) && !(lphc->wState & CBF_DROPPED)
&& (wParam == VK_DOWN || wParam == VK_UP)) )
{
COMBO_FlipListbox( lphc, FALSE );
return 0;
}
}
return LISTBOX_HandleKeyDown( wnd, descr, wParam );
case LB_SETCURSEL16:
case LB_SETCURSEL:
lRet = ListBoxWndProc( hwnd, msg, wParam, lParam );
lRet =(lRet == LB_ERR) ? lRet : descr->selected_item;
return lRet;
case WM_NCDESTROY:
if( CB_GETTYPE(lphc) != CBS_SIMPLE )
lphc->hWndLBox = 0;
/* fall through */
default:
return ListBoxWndProc( hwnd, msg, wParam, lParam );
}
}
lRet = DefWindowProcA( hwnd, msg, wParam, lParam );
TRACE_(combo)("\t default on msg [%04x]\n", (UINT16)msg );
}
return lRet;
}
/***********************************************************************
* ComboLBWndProc
*
* NOTE: in Windows, winproc address of the ComboLBox is the same
* as that of the Listbox.
*
* This is just a wrapper for the real wndproc, it only does window locking
* and unlocking.
*/
LRESULT WINAPI ComboLBWndProc( HWND hwnd, UINT msg,
WPARAM wParam, LPARAM lParam )
{
WND *wnd = WIN_FindWndPtr( hwnd );
LRESULT res = ComboLBWndProc_locked(wnd,msg,wParam,lParam);
WIN_ReleaseWndPtr(wnd);
return res;
}
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