combo.c File Reference

#include <user32.h>

Include dependency graph for combo.c:

Go to the source code of this file.

Macros
#define	CB_NOTIFY(lphc, code)
#define	CB_DISABLED(lphc)   (!IsWindowEnabled((lphc)->self))
#define	CB_OWNERDRAWN(lphc)   ((lphc)->dwStyle & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE))
#define	CB_HASSTRINGS(lphc)   ((lphc)->dwStyle & CBS_HASSTRINGS)
#define	CB_HWND(lphc)   ((lphc)->self)
#define	CB_GETTYPE(lphc)   ((lphc)->dwStyle & (CBS_DROPDOWNLIST))
#define	ISWIN31   (LOWORD(GetVersion()) == 0x0a03)
#define	COMBO_YBORDERGAP   5
#define	COMBO_XBORDERSIZE()   2
#define	COMBO_YBORDERSIZE()   2
#define	COMBO_EDITBUTTONSPACE()   0
#define	EDIT_CONTROL_PADDING()   1

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (combo)
static BOOL	COMBO_Init (void)
static LRESULT	COMBO_NCCreate (HWND hwnd, LONG style)
static LRESULT	COMBO_NCDestroy (LPHEADCOMBO lphc)
static INT	CBGetTextAreaHeight (HWND hwnd, LPHEADCOMBO lphc)
static void	CBForceDummyResize (LPHEADCOMBO lphc)
static void	CBCalcPlacement (HWND hwnd, LPHEADCOMBO lphc, LPRECT lprEdit, LPRECT lprButton, LPRECT lprLB)
static void	CBGetDroppedControlRect (LPHEADCOMBO lphc, LPRECT lpRect)
static LRESULT	COMBO_Create (HWND hwnd, LPHEADCOMBO lphc, HWND hwndParent, LONG style, BOOL unicode)
static void	CBPaintButton (LPHEADCOMBO lphc, HDC hdc, RECT rectButton)
static HBRUSH	COMBO_PrepareColors (LPHEADCOMBO lphc, HDC hDC)
static void	CBPaintText (LPHEADCOMBO lphc, HDC hdc_paint)
static void	CBPaintBorder (HWND hwnd, const HEADCOMBO *lphc, HDC hdc)
static LRESULT	COMBO_Paint (LPHEADCOMBO lphc, HDC hParamDC)
static INT	CBUpdateLBox (LPHEADCOMBO lphc, BOOL bSelect)
static void	CBUpdateEdit (LPHEADCOMBO lphc, INT index)
static void	CBDropDown (LPHEADCOMBO lphc)
static void	CBRollUp (LPHEADCOMBO lphc, BOOL ok, BOOL bButton)
BOOL	COMBO_FlipListbox (LPHEADCOMBO lphc, BOOL ok, BOOL bRedrawButton)
static void	CBRepaintButton (LPHEADCOMBO lphc)
static void	COMBO_SetFocus (LPHEADCOMBO lphc)
static void	COMBO_KillFocus (LPHEADCOMBO lphc)
static LRESULT	COMBO_Command (LPHEADCOMBO lphc, WPARAM wParam, HWND hWnd)
static LRESULT	COMBO_ItemOp (LPHEADCOMBO lphc, UINT msg, LPARAM lParam)
static LRESULT	COMBO_GetTextW (LPHEADCOMBO lphc, INT count, LPWSTR buf)
static LRESULT	COMBO_GetTextA (LPHEADCOMBO lphc, INT count, LPSTR buf)
static void	CBResetPos (LPHEADCOMBO lphc, const RECT *rectEdit, const RECT *rectLB, BOOL bRedraw)
static void	COMBO_Size (LPHEADCOMBO lphc)
static void	COMBO_Font (LPHEADCOMBO lphc, HFONT hFont, BOOL bRedraw)
static LRESULT	COMBO_SetItemHeight (LPHEADCOMBO lphc, INT index, INT height)
static LRESULT	COMBO_SelectString (LPHEADCOMBO lphc, INT start, LPARAM pText, BOOL unicode)
static void	COMBO_LButtonDown (LPHEADCOMBO lphc, LPARAM lParam)
static void	COMBO_LButtonUp (LPHEADCOMBO lphc)
static void	COMBO_MouseMove (LPHEADCOMBO lphc, WPARAM wParam, LPARAM lParam)
static LRESULT	COMBO_GetComboBoxInfo (const HEADCOMBO *lphc, COMBOBOXINFO *pcbi)
static char *	strdupA (LPCSTR str)
LRESULT WINAPI	ComboWndProc_common (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam, BOOL unicode)
BOOL WINAPI	GetComboBoxInfo (HWND hwndCombo, PCOMBOBOXINFO pcbi)

Variables
static HBITMAP	hComboBmp = 0
static UINT	CBitHeight
static UINT	CBitWidth
static const WCHAR	comboboxW [] = {'C','o','m','b','o','B','o','x',0}
const struct builtin_class_descr	COMBO_builtin_class

Macro Definition Documentation

CB_DISABLED

#define CB_DISABLED

(

lphc

)

(!IsWindowEnabled((lphc)->self))

Definition at line 36 of file combo.c.

CB_GETTYPE

#define CB_GETTYPE

(

lphc

)

((lphc)->dwStyle & (CBS_DROPDOWNLIST))

Definition at line 42 of file combo.c.

CB_HASSTRINGS

#define CB_HASSTRINGS

(

lphc

)

((lphc)->dwStyle & CBS_HASSTRINGS)

Definition at line 38 of file combo.c.

CB_HWND

#define CB_HWND

(

lphc

)

((lphc)->self)

Definition at line 39 of file combo.c.

CB_NOTIFY

#define CB_NOTIFY	(		lphc,
			code
	)

Value:

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

Definition at line 32 of file combo.c.

CB_OWNERDRAWN

#define CB_OWNERDRAWN

(

lphc

)

((lphc)->dwStyle & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE))

Definition at line 37 of file combo.c.

COMBO_EDITBUTTONSPACE

#define COMBO_EDITBUTTONSPACE

(

)

0

Definition at line 60 of file combo.c.

COMBO_XBORDERSIZE

#define COMBO_XBORDERSIZE

(

)

2

Definition at line 58 of file combo.c.

COMBO_YBORDERGAP

#define COMBO_YBORDERGAP   5

Definition at line 57 of file combo.c.

COMBO_YBORDERSIZE

#define COMBO_YBORDERSIZE

(

)

2

Definition at line 59 of file combo.c.

EDIT_CONTROL_PADDING

#define EDIT_CONTROL_PADDING

(

)

1

Definition at line 61 of file combo.c.

ISWIN31

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

Definition at line 45 of file combo.c.

Function Documentation

CBCalcPlacement()

static void CBCalcPlacement ( HWND  hwnd, LPHEADCOMBO  lphc, LPRECT  lprEdit, LPRECT  lprButton, LPRECT  lprLB  )

static

Definition at line 328 of file combo.c.

{
  /*
   * Again, start with the client rectangle.
   */
  GetClientRect(hwnd, lprEdit);
 
  /*
   * Remove the borders
   */
  InflateRect(lprEdit, -COMBO_XBORDERSIZE(), -COMBO_YBORDERSIZE());
 
  /*
   * Chop off the bottom part to fit with the height of the text area.
   */
  lprEdit->bottom = lprEdit->top + CBGetTextAreaHeight(hwnd, lphc);
 
  /*
   * The button starts the same vertical position as the text area.
   */
  CopyRect(lprButton, lprEdit);
 
  /*
   * If the combobox is "simple" there is no button.
   */
  if( CB_GETTYPE(lphc) == CBS_SIMPLE )
    lprButton->left = lprButton->right = lprButton->bottom = 0;
  else
  {
    /*
     * Let's assume the combobox button is the same width as the
     * scrollbar button.
     * size the button horizontally and cut-off the text area.
     */
    lprButton->left = lprButton->right - GetSystemMetrics(SM_CXVSCROLL);
    lprEdit->right  = lprButton->left;
  }
 
  /*
   * In the case of a dropdown, there is an additional spacing between the
   * text area and the button.
   */
  if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
  {
    lprEdit->right -= COMBO_EDITBUTTONSPACE();
  }
 
  /*
   * If we have an edit control, we space it away from the borders slightly.
   */
  if (CB_GETTYPE(lphc) != CBS_DROPDOWNLIST)
  {
    InflateRect(lprEdit, -EDIT_CONTROL_PADDING(), -EDIT_CONTROL_PADDING());
  }
 
  /*
   * Adjust the size of the listbox popup.
   */
  if( CB_GETTYPE(lphc) == CBS_SIMPLE )
  {
    /*
     * Use the client rectangle to initialize the listbox rectangle
     */
    GetClientRect(hwnd, lprLB);
 
    /*
     * Then, chop-off the top part.
     */
    lprLB->top = lprEdit->bottom + COMBO_YBORDERSIZE();
  }
  else
  {
    /*
     * Make sure the dropped width is as large as the combobox itself.
     */
    if (lphc->droppedWidth < (lprButton->right + COMBO_XBORDERSIZE()))
    {
      lprLB->right  = lprLB->left + (lprButton->right + COMBO_XBORDERSIZE());
 
      /*
       * In the case of a dropdown, the popup listbox is offset to the right.
       * so, we want to make sure it's flush with the right side of the
       * combobox
       */
      if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
    lprLB->right -= COMBO_EDITBUTTONSPACE();
    }
    else
       lprLB->right = lprLB->left + lphc->droppedWidth;
  }
 
  /* don't allow negative window width */
  if (lprEdit->right < lprEdit->left)
    lprEdit->right = lprEdit->left;
 
  TRACE("\ttext\t= (%s)\n", wine_dbgstr_rect(lprEdit));
 
  TRACE("\tbutton\t= (%s)\n", wine_dbgstr_rect(lprButton));
 
  TRACE("\tlbox\t= (%s)\n", wine_dbgstr_rect(lprLB));
}

CBDropDown()

static void CBDropDown ( LPHEADCOMBO  lphc )

static

Definition at line 990 of file combo.c.

{
    HMONITOR monitor;
    MONITORINFO mon_info;
   RECT rect,r;
   int nItems = 0;
   int nDroppedHeight;
 
   TRACE("[%p]: drop down\n", lphc->self);
 
   CB_NOTIFY( lphc, CBN_DROPDOWN );
 
   /* set selection */
 
   lphc->wState |= CBF_DROPPED;
   if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
   {
       lphc->droppedIndex = CBUpdateLBox( lphc, TRUE );
 
       /* Update edit only if item is in the list */
       if( !(lphc->wState & CBF_CAPTURE) && lphc->droppedIndex >= 0)
     CBUpdateEdit( lphc, lphc->droppedIndex );
   }
   else
   {
       lphc->droppedIndex = SendMessageW(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
 
       SendMessageW(lphc->hWndLBox, LB_SETTOPINDEX,
                    (WPARAM)(lphc->droppedIndex == LB_ERR ? 0 : lphc->droppedIndex), 0 );
       SendMessageW(lphc->hWndLBox, LB_CARETON, 0, 0);
   }
 
   /* now set popup position */
   GetWindowRect( lphc->self, &rect );
 
   /*
    * If it's a dropdown, the listbox is offset
    */
   if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
     rect.left += COMBO_EDITBUTTONSPACE();
 
  /* if the dropped height is greater than the total height of the dropped
     items list, then force the drop down list height to be the total height
     of the items in the dropped list */
 
  /* And Remove any extra space (Best Fit) */
   nDroppedHeight = lphc->droppedRect.bottom - lphc->droppedRect.top;
  /* if listbox length has been set directly by its handle */
   GetWindowRect(lphc->hWndLBox, &r);
   if (nDroppedHeight < r.bottom - r.top)
       nDroppedHeight = r.bottom - r.top;
   nItems = (int)SendMessageW(lphc->hWndLBox, LB_GETCOUNT, 0, 0);
 
   if (nItems > 0)
   {
      int nHeight;
      int nIHeight;
 
      nIHeight = (int)SendMessageW(lphc->hWndLBox, LB_GETITEMHEIGHT, 0, 0);
 
      nHeight = nIHeight*nItems;
 
      if (nHeight < nDroppedHeight - COMBO_YBORDERSIZE())
         nDroppedHeight = nHeight + COMBO_YBORDERSIZE();
   }
 
   r.left = rect.left;
   r.top = rect.bottom;
   r.right = r.left + lphc->droppedRect.right - lphc->droppedRect.left;
   r.bottom = r.top + nDroppedHeight;
 
   /*If height of dropped rectangle gets beyond a screen size it should go up, otherwise down.*/
   monitor = MonitorFromRect( &rect, MONITOR_DEFAULTTOPRIMARY );
   mon_info.cbSize = sizeof(mon_info);
   GetMonitorInfoW( monitor, &mon_info );
 
   if (r.bottom > mon_info.rcWork.bottom)
   {
       r.top = max( rect.top - nDroppedHeight, mon_info.rcWork.top );
       r.bottom = min( r.top + nDroppedHeight, mon_info.rcWork.bottom );
   }
 
   SetWindowPos( lphc->hWndLBox, HWND_TOPMOST, r.left, r.top, r.right - r.left, r.bottom - r.top,
                 SWP_NOACTIVATE | SWP_SHOWWINDOW );
 
 
   if( !(lphc->wState & CBF_NOREDRAW) )
     RedrawWindow( lphc->self, NULL, 0, RDW_INVALIDATE |
               RDW_ERASE | RDW_UPDATENOW | RDW_NOCHILDREN );
 
   EnableWindow( lphc->hWndLBox, TRUE );
   if (GetCapture() != lphc->self)
      SetCapture(lphc->hWndLBox);
}

CBForceDummyResize()

static void CBForceDummyResize ( LPHEADCOMBO  lphc )

static

Definition at line 297 of file combo.c.

{
  RECT windowRect;
  int newComboHeight;
 
  newComboHeight = CBGetTextAreaHeight(lphc->self,lphc) + 2*COMBO_YBORDERSIZE();
 
  GetWindowRect(lphc->self, &windowRect);
 
  /*
   * We have to be careful, resizing a combobox also has the meaning that the
   * dropped rect will be resized. In this case, we want to trigger a resize
   * to recalculate layout but we don't want to change the dropped rectangle
   * So, we pass the height of text area of control as the height.
   * this will cancel-out in the processing of the WM_WINDOWPOSCHANGING
   * message.
   */
  SetWindowPos( lphc->self,
        NULL,
        0, 0,
        windowRect.right  - windowRect.left,
        newComboHeight,
        SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE );
}

CBGetDroppedControlRect()

static void CBGetDroppedControlRect ( LPHEADCOMBO  lphc, LPRECT  lpRect  )

static

Definition at line 438 of file combo.c.

{
    /* In windows, CB_GETDROPPEDCONTROLRECT returns the upper left corner
     of the combo box and the lower right corner of the listbox */
 
    GetWindowRect(lphc->self, lpRect);
 
    lpRect->right =  lpRect->left + lphc->droppedRect.right - lphc->droppedRect.left;
    lpRect->bottom = lpRect->top + lphc->droppedRect.bottom - lphc->droppedRect.top;
 
}

CBGetTextAreaHeight()

static INT CBGetTextAreaHeight ( HWND  hwnd, LPHEADCOMBO  lphc  )

static

Definition at line 202 of file combo.c.

{
  INT iTextItemHeight;
 
  if( lphc->editHeight ) /* explicitly set height */
  {
    iTextItemHeight = lphc->editHeight;
  }
  else
  {
    TEXTMETRICW tm;
    HDC         hDC       = GetDC(hwnd);
    HFONT       hPrevFont = 0;
    INT         baseUnitY;
 
    if (lphc->hFont)
      hPrevFont = SelectObject( hDC, lphc->hFont );
 
    GetTextMetricsW(hDC, &tm);
 
    baseUnitY = tm.tmHeight;
 
    if( hPrevFont )
      SelectObject( hDC, hPrevFont );
 
    ReleaseDC(hwnd, hDC);
 
    iTextItemHeight = baseUnitY + 4;
  }
 
  /*
   * Check the ownerdraw case if we haven't asked the parent the size
   * of the item yet.
   */
  if ( CB_OWNERDRAWN(lphc) &&
       (lphc->wState & CBF_MEASUREITEM) )
  {
    MEASUREITEMSTRUCT measureItem;
    RECT              clientRect;
    INT               originalItemHeight = iTextItemHeight;
    UINT id = (UINT)GetWindowLongPtrW( lphc->self, GWLP_ID );
 
    /*
     * We use the client rect for the width of the item.
     */
    GetClientRect(hwnd, &clientRect);
 
    lphc->wState &= ~CBF_MEASUREITEM;
 
    /*
     * Send a first one to measure the size of the text area
     */
    measureItem.CtlType    = ODT_COMBOBOX;
    measureItem.CtlID      = id;
    measureItem.itemID     = -1;
    measureItem.itemWidth  = clientRect.right;
    measureItem.itemHeight = iTextItemHeight - 6; /* ownerdrawn cb is taller */
    measureItem.itemData   = 0;
    SendMessageW(lphc->owner, WM_MEASUREITEM, id, (LPARAM)&measureItem);
    iTextItemHeight = 6 + measureItem.itemHeight;
 
    /*
     * Send a second one in the case of a fixed ownerdraw list to calculate the
     * size of the list items. (we basically do this on behalf of the listbox)
     */
    if (lphc->dwStyle & CBS_OWNERDRAWFIXED)
    {
      measureItem.CtlType    = ODT_COMBOBOX;
      measureItem.CtlID      = id;
      measureItem.itemID     = 0;
      measureItem.itemWidth  = clientRect.right;
      measureItem.itemHeight = originalItemHeight;
      measureItem.itemData   = 0;
      SendMessageW(lphc->owner, WM_MEASUREITEM, id, (LPARAM)&measureItem);
      lphc->fixedOwnerDrawHeight = measureItem.itemHeight;
    }
 
    /*
     * Keep the size for the next time
     */
    lphc->editHeight = iTextItemHeight;
  }
 
  return iTextItemHeight;
}

CBPaintBorder()

static void CBPaintBorder ( HWND  hwnd, const HEADCOMBO *  lphc, HDC  hdc  )

static

Definition at line 831 of file combo.c.

{
  RECT clientRect;
 
  if (CB_GETTYPE(lphc) != CBS_SIMPLE)
  {
    GetClientRect(hwnd, &clientRect);
  }
  else
  {
    CopyRect(&clientRect, &lphc->textRect);
 
    InflateRect(&clientRect, EDIT_CONTROL_PADDING(), EDIT_CONTROL_PADDING());
    InflateRect(&clientRect, COMBO_XBORDERSIZE(), COMBO_YBORDERSIZE());
  }
 
  DrawEdge(hdc, &clientRect, EDGE_SUNKEN, BF_RECT);
}

CBPaintButton()

static void CBPaintButton ( LPHEADCOMBO  lphc, HDC  hdc, RECT  rectButton  )

static

Definition at line 626 of file combo.c.

{
    UINT buttonState = DFCS_SCROLLCOMBOBOX;
 
    if( lphc->wState & CBF_NOREDRAW )
      return;
 
 
    if (lphc->wState & CBF_BUTTONDOWN)
    buttonState |= DFCS_PUSHED;
 
    if (CB_DISABLED(lphc))
    buttonState |= DFCS_INACTIVE;
 
    DrawFrameControl(hdc, &rectButton, DFC_SCROLL, buttonState);
}

CBPaintText()

static void CBPaintText ( LPHEADCOMBO  lphc, HDC  hdc_paint  )

static

Definition at line 700 of file combo.c.

{
   RECT rectEdit = lphc->textRect;
   INT  id, size = 0;
   LPWSTR pText = NULL;
 
   TRACE("\n");
 
   /* follow Windows combobox that sends a bunch of text
    * inquiries to its listbox while processing WM_PAINT. */
 
   if( (id = SendMessageW(lphc->hWndLBox, LB_GETCURSEL, 0, 0) ) != LB_ERR )
   {
        size = SendMessageW(lphc->hWndLBox, LB_GETTEXTLEN, id, 0);
    if (size == LB_ERR)
      FIXME("LB_ERR probably not handled yet\n");
        if( (pText = HeapAlloc( GetProcessHeap(), 0, (size + 1) * sizeof(WCHAR))) )
    {
            /* size from LB_GETTEXTLEN may be too large, from LB_GETTEXT is accurate */
        size=SendMessageW(lphc->hWndLBox, LB_GETTEXT, (WPARAM)id, (LPARAM)pText);
        pText[size] = '\0'; /* just in case */
    } else return;
   }
 
   if( lphc->wState & CBF_EDIT )
   {
        static const WCHAR empty_stringW[] = { 0 };
    if( CB_HASSTRINGS(lphc) ) SetWindowTextW( lphc->hWndEdit, pText ? pText : empty_stringW );
    if( lphc->wState & CBF_FOCUSED )
        SendMessageW(lphc->hWndEdit, EM_SETSEL, 0, MAXLONG);
   }
   else if(!(lphc->wState & CBF_NOREDRAW) && IsWindowVisible( lphc->self ))
   {
     /* paint text field ourselves */
     HDC hdc = hdc_paint ? hdc_paint : GetDC(lphc->self);
     UINT itemState = ODS_COMBOBOXEDIT;
     HFONT hPrevFont = (lphc->hFont) ? SelectObject(hdc, lphc->hFont) : 0;
     HBRUSH hPrevBrush, hBkgBrush;
 
     /*
      * Give ourselves some space.
      */
     InflateRect( &rectEdit, -1, -1 );
 
     hBkgBrush = COMBO_PrepareColors( lphc, hdc );
     hPrevBrush = SelectObject( hdc, hBkgBrush );
     FillRect( hdc, &rectEdit, hBkgBrush );
 
     if( CB_OWNERDRAWN(lphc) )
     {
       DRAWITEMSTRUCT dis;
       HRGN           clipRegion;
       UINT ctlid = (UINT)GetWindowLongPtrW( lphc->self, GWLP_ID );
 
       /* setup state for DRAWITEM message. Owner will highlight */
       if ( (lphc->wState & CBF_FOCUSED) &&
        !(lphc->wState & CBF_DROPPED) )
       itemState |= ODS_SELECTED | ODS_FOCUS;
 
       if (!IsWindowEnabled(lphc->self)) itemState |= ODS_DISABLED;
 
       dis.CtlType  = ODT_COMBOBOX;
       dis.CtlID    = ctlid;
       dis.hwndItem = lphc->self;
       dis.itemAction   = ODA_DRAWENTIRE;
       dis.itemID   = id;
       dis.itemState    = itemState;
       dis.hDC      = hdc;
       dis.rcItem   = rectEdit;
       dis.itemData     = SendMessageW(lphc->hWndLBox, LB_GETITEMDATA, id, 0);
 
       /*
    * Clip the DC and have the parent draw the item.
    */
       clipRegion = set_control_clipping( hdc, &rectEdit );
 
       SendMessageW(lphc->owner, WM_DRAWITEM, ctlid, (LPARAM)&dis );
 
       SelectClipRgn( hdc, clipRegion );
       if (clipRegion) DeleteObject( clipRegion );
     }
     else
     {
       static const WCHAR empty_stringW[] = { 0 };
 
       if ( (lphc->wState & CBF_FOCUSED) &&
        !(lphc->wState & CBF_DROPPED) ) {
 
       /* highlight */
       FillRect( hdc, &rectEdit, GetSysColorBrush(COLOR_HIGHLIGHT) );
       SetBkColor( hdc, GetSysColor( COLOR_HIGHLIGHT ) );
       SetTextColor( hdc, GetSysColor( COLOR_HIGHLIGHTTEXT ) );
       }
 
       ExtTextOutW( hdc,
            rectEdit.left + 1,
            rectEdit.top + 1,
            ETO_OPAQUE | ETO_CLIPPED,
            &rectEdit,
            pText ? pText : empty_stringW , size, NULL );
 
#ifdef __REACTOS__
       if(lphc->wState & CBF_FOCUSED &&
          !(lphc->wState & CBF_DROPPED) &&
          !(lphc->UIState & UISF_HIDEFOCUS))
#else
       if(lphc->wState & CBF_FOCUSED && !(lphc->wState & CBF_DROPPED))
#endif
     DrawFocusRect( hdc, &rectEdit );
     }
 
     if( hPrevFont )
       SelectObject(hdc, hPrevFont );
 
     if( hPrevBrush )
        SelectObject( hdc, hPrevBrush );
 
     if( !hdc_paint )
       ReleaseDC( lphc->self, hdc );
   }
#ifdef __REACTOS__
   if (pText)
#endif
    HeapFree( GetProcessHeap(), 0, pText );
}

CBRepaintButton()

static void CBRepaintButton ( LPHEADCOMBO  lphc )

static

Definition at line 1160 of file combo.c.

   {
  InvalidateRect(lphc->self, &lphc->buttonRect, TRUE);
  UpdateWindow(lphc->self);
}

CBResetPos()

static void CBResetPos ( LPHEADCOMBO  lphc, const RECT *  rectEdit, const RECT *  rectLB, BOOL  bRedraw  )

static

Definition at line 1484 of file combo.c.

{
   BOOL bDrop = (CB_GETTYPE(lphc) != CBS_SIMPLE);
 
   /* NOTE: logs sometimes have WM_LBUTTONUP before a cascade of
    * sizing messages */
 
   if( lphc->wState & CBF_EDIT )
     SetWindowPos( lphc->hWndEdit, 0,
           rectEdit->left, rectEdit->top,
           rectEdit->right - rectEdit->left,
           rectEdit->bottom - rectEdit->top,
                       SWP_NOZORDER | SWP_NOACTIVATE | ((bDrop) ? SWP_NOREDRAW : 0) );
 
   SetWindowPos( lphc->hWndLBox, 0,
         rectLB->left, rectLB->top,
                 rectLB->right - rectLB->left,
         rectLB->bottom - rectLB->top,
           SWP_NOACTIVATE | SWP_NOZORDER | ((bDrop) ? SWP_NOREDRAW : 0) );
 
   if( bDrop )
   {
       if( lphc->wState & CBF_DROPPED )
       {
           lphc->wState &= ~CBF_DROPPED;
           ShowWindow( lphc->hWndLBox, SW_HIDE );
       }
 
       if( bRedraw && !(lphc->wState & CBF_NOREDRAW) )
           RedrawWindow( lphc->self, NULL, 0,
                           RDW_INVALIDATE | RDW_ERASE | RDW_UPDATENOW );
   }
}

CBRollUp()

static void CBRollUp ( LPHEADCOMBO  lphc, BOOL  ok, BOOL  bButton  )

static

Definition at line 1090 of file combo.c.

{
   HWND hWnd = lphc->self;
 
   TRACE("[%p]: sel ok? [%i] dropped? [%i]\n",
     lphc->self, ok, (INT)(lphc->wState & CBF_DROPPED));
 
   CB_NOTIFY( lphc, (ok) ? CBN_SELENDOK : CBN_SELENDCANCEL );
 
   if( IsWindow( hWnd ) && CB_GETTYPE(lphc) != CBS_SIMPLE )
   {
 
       if( lphc->wState & CBF_DROPPED )
       {
       RECT rect;
 
       lphc->wState &= ~CBF_DROPPED;
       ShowWindow( lphc->hWndLBox, SW_HIDE );
 
           if(GetCapture() == lphc->hWndLBox)
           {
               ReleaseCapture();
           }
 
       if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
       {
           rect = lphc->buttonRect;
       }
       else
           {
           if( bButton )
           {
         UnionRect( &rect,
                &lphc->buttonRect,
                &lphc->textRect);
           }
           else
         rect = lphc->textRect;
 
           bButton = TRUE;
       }
 
       if( bButton && !(lphc->wState & CBF_NOREDRAW) )
           RedrawWindow( hWnd, &rect, 0, RDW_INVALIDATE |
                   RDW_ERASE | RDW_UPDATENOW | RDW_NOCHILDREN );
       CB_NOTIFY( lphc, CBN_CLOSEUP );
       }
   }
}

CBUpdateEdit()

static void CBUpdateEdit ( LPHEADCOMBO  lphc, INT  index  )

static

Definition at line 952 of file combo.c.

{
   INT  length;
   LPWSTR pText = NULL;
   static const WCHAR empty_stringW[] = { 0 };
 
   TRACE("\t %i\n", index );
 
   if( index >= 0 ) /* got an entry */
   {
       length = SendMessageW(lphc->hWndLBox, LB_GETTEXTLEN, (WPARAM)index, 0);
       if( length != LB_ERR)
       {
       if( (pText = HeapAlloc( GetProcessHeap(), 0, (length + 1) * sizeof(WCHAR))) )
       {
               SendMessageW(lphc->hWndLBox, LB_GETTEXT, (WPARAM)index, (LPARAM)pText );
       }
       }
   }
 
   if( CB_HASSTRINGS(lphc) )
   {
      lphc->wState |= (CBF_NOEDITNOTIFY | CBF_NOLBSELECT);
      SendMessageW(lphc->hWndEdit, WM_SETTEXT, 0, pText ? (LPARAM)pText : (LPARAM)empty_stringW);
      lphc->wState &= ~(CBF_NOEDITNOTIFY | CBF_NOLBSELECT);
   }
 
   if( lphc->wState & CBF_FOCUSED )
      SendMessageW(lphc->hWndEdit, EM_SETSEL, 0, (LPARAM)(-1));
 
   HeapFree( GetProcessHeap(), 0, pText );
}

CBUpdateLBox()

static INT CBUpdateLBox ( LPHEADCOMBO  lphc, BOOL  bSelect  )

static

Definition at line 918 of file combo.c.

{
   INT  length, idx;
   LPWSTR pText = NULL;
 
   idx = LB_ERR;
   length = SendMessageW( lphc->hWndEdit, WM_GETTEXTLENGTH, 0, 0 );
 
   if( length > 0 )
       pText = HeapAlloc( GetProcessHeap(), 0, (length + 1) * sizeof(WCHAR));
 
   TRACE("\t edit text length %i\n", length );
 
   if( pText )
   {
       GetWindowTextW( lphc->hWndEdit, pText, length + 1);
       idx = SendMessageW(lphc->hWndLBox, LB_FINDSTRING, (WPARAM)(-1), (LPARAM)pText);
       HeapFree( GetProcessHeap(), 0, pText );
   }
 
   SendMessageW(lphc->hWndLBox, LB_SETCURSEL, (WPARAM)(bSelect ? idx : -1), 0);
 
   /* probably superfluous but Windows sends this too */
   SendMessageW(lphc->hWndLBox, LB_SETCARETINDEX, (WPARAM)(idx < 0 ? 0 : idx), 0);
   SendMessageW(lphc->hWndLBox, LB_SETTOPINDEX, (WPARAM)(idx < 0 ? 0 : idx), 0);
 
   return idx;
}

COMBO_Command()

static LRESULT COMBO_Command ( LPHEADCOMBO  lphc, WPARAM  wParam, HWND  hWnd  )

static

Definition at line 1217 of file combo.c.

{
   if ( lphc->wState & CBF_EDIT && lphc->hWndEdit == hWnd )
   {
       /* ">> 8" makes gcc generate jump-table instead of cmp ladder */
 
       switch( HIWORD(wParam) >> 8 )
       {
       case (EN_SETFOCUS >> 8):
 
               TRACE("[%p]: edit [%p] got focus\n", lphc->self, lphc->hWndEdit );
 
        COMBO_SetFocus( lphc );
            break;
 
       case (EN_KILLFOCUS >> 8):
 
               TRACE("[%p]: edit [%p] lost focus\n", lphc->self, lphc->hWndEdit );
 
        /* NOTE: it seems that Windows' edit control sends an
         * undocumented message WM_USER + 0x1B instead of this
         * notification (only when it happens to be a part of
         * the combo). ?? - AK.
         */
 
        COMBO_KillFocus( lphc );
        break;
 
 
       case (EN_CHANGE >> 8):
           /*
            * In some circumstances (when the selection of the combobox
        * is changed for example) we don't want the EN_CHANGE notification
        * to be forwarded to the parent of the combobox. This code
        * checks a flag that is set in these occasions and ignores the
        * notification.
            */
        if (lphc->wState & CBF_NOLBSELECT)
        {
          lphc->wState &= ~CBF_NOLBSELECT;
        }
        else
        {
          CBUpdateLBox( lphc, lphc->wState & CBF_DROPPED );
        }
 
            if (!(lphc->wState & CBF_NOEDITNOTIFY))
          CB_NOTIFY( lphc, CBN_EDITCHANGE );
        break;
 
       case (EN_UPDATE >> 8):
            if (!(lphc->wState & CBF_NOEDITNOTIFY))
          CB_NOTIFY( lphc, CBN_EDITUPDATE );
        break;
 
       case (EN_ERRSPACE >> 8):
        CB_NOTIFY( lphc, CBN_ERRSPACE );
       }
   }
   else if( lphc->hWndLBox == hWnd )
   {
       switch( (short)HIWORD(wParam) )
       {
       case LBN_ERRSPACE:
        CB_NOTIFY( lphc, CBN_ERRSPACE );
        break;
 
       case LBN_DBLCLK:
        CB_NOTIFY( lphc, CBN_DBLCLK );
        break;
 
       case LBN_SELCHANGE:
       case LBN_SELCANCEL:
 
                TRACE("[%p]: lbox selection change [%x]\n", lphc->self, lphc->wState );
 
                /* do not roll up if selection is being tracked
                 * by arrow keys in the dropdown listbox */
                if (!(lphc->wState & CBF_NOROLLUP))
                {
                    CBRollUp( lphc, (HIWORD(wParam) == LBN_SELCHANGE), TRUE );
                }
                else lphc->wState &= ~CBF_NOROLLUP;
 
        CB_NOTIFY( lphc, CBN_SELCHANGE );
 
        if( HIWORD(wParam) == LBN_SELCHANGE)
        {
           if( lphc->wState & CBF_EDIT )
           {
               INT index = SendMessageW(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
               lphc->wState |= CBF_NOLBSELECT;
               CBUpdateEdit( lphc, index );
               /* select text in edit, as Windows does */
               SendMessageW(lphc->hWndEdit, EM_SETSEL, 0, (LPARAM)(-1));
           }
           else
                   {
               InvalidateRect(lphc->self, &lphc->textRect, TRUE);
                       UpdateWindow(lphc->self);
                   }
        }
                break;
 
       case LBN_SETFOCUS:
       case LBN_KILLFOCUS:
        /* nothing to do here since ComboLBox always resets the focus to its
         * combo/edit counterpart */
         break;
       }
   }
   return 0;
}

COMBO_Create()

static LRESULT COMBO_Create ( HWND  hwnd, LPHEADCOMBO  lphc, HWND  hwndParent, LONG  style, BOOL  unicode  )

static

Definition at line 453 of file combo.c.

{
  static const WCHAR clbName[] = {'C','o','m','b','o','L','B','o','x',0};
  static const WCHAR editName[] = {'E','d','i','t',0};
 
  if( !CB_GETTYPE(lphc) ) lphc->dwStyle |= CBS_SIMPLE;
  if( CB_GETTYPE(lphc) != CBS_DROPDOWNLIST ) lphc->wState |= CBF_EDIT;
 
  lphc->owner = hwndParent;
 
  /*
   * The item height and dropped width are not set when the control
   * is created.
   */
  lphc->droppedWidth = lphc->editHeight = 0;
 
  /*
   * The first time we go through, we want to measure the ownerdraw item
   */
  lphc->wState |= CBF_MEASUREITEM;
 
  /* M$ IE 3.01 actually creates (and rapidly destroys) an ownerless combobox */
 
  if( lphc->owner || !(style & WS_VISIBLE) )
  {
      UINT lbeStyle   = 0;
      UINT lbeExStyle = 0;
 
      /*
       * Initialize the dropped rect to the size of the client area of the
       * control and then, force all the areas of the combobox to be
       * recalculated.
       */
      GetClientRect( hwnd, &lphc->droppedRect );
      CBCalcPlacement(hwnd, lphc, &lphc->textRect, &lphc->buttonRect, &lphc->droppedRect );
 
      /*
       * Adjust the position of the popup listbox if it's necessary
       */
      if ( CB_GETTYPE(lphc) != CBS_SIMPLE )
      {
    lphc->droppedRect.top   = lphc->textRect.bottom + COMBO_YBORDERSIZE();
 
    /*
     * If it's a dropdown, the listbox is offset
     */
    if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
      lphc->droppedRect.left += COMBO_EDITBUTTONSPACE();
 
        if (lphc->droppedRect.bottom < lphc->droppedRect.top)
            lphc->droppedRect.bottom = lphc->droppedRect.top;
        if (lphc->droppedRect.right < lphc->droppedRect.left)
            lphc->droppedRect.right = lphc->droppedRect.left;
        MapWindowPoints( hwnd, 0, (LPPOINT)&lphc->droppedRect, 2 );
      }
 
      /* create listbox popup */
 
      lbeStyle = (LBS_NOTIFY | LBS_COMBOBOX | WS_BORDER | WS_CLIPSIBLINGS | WS_CHILD) |
                 (style & (WS_VSCROLL | CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE));
 
      if( lphc->dwStyle & CBS_SORT )
    lbeStyle |= LBS_SORT;
      if( lphc->dwStyle & CBS_HASSTRINGS )
    lbeStyle |= LBS_HASSTRINGS;
      if( lphc->dwStyle & CBS_NOINTEGRALHEIGHT )
    lbeStyle |= LBS_NOINTEGRALHEIGHT;
      if( lphc->dwStyle & CBS_DISABLENOSCROLL )
    lbeStyle |= LBS_DISABLENOSCROLL;
 
      if( CB_GETTYPE(lphc) == CBS_SIMPLE )  /* child listbox */
      {
    lbeStyle |= WS_VISIBLE;
 
    /*
     * In win 95 look n feel, the listbox in the simple combobox has
     * the WS_EXCLIENTEDGE style instead of the WS_BORDER style.
     */
    lbeStyle   &= ~WS_BORDER;
    lbeExStyle |= WS_EX_CLIENTEDGE;
      }
      else
      {
        lbeExStyle |= (WS_EX_TOPMOST | WS_EX_TOOLWINDOW);
      }
 
      if (unicode)
          lphc->hWndLBox = CreateWindowExW(lbeExStyle, clbName, NULL, lbeStyle,
                                           lphc->droppedRect.left,
                                           lphc->droppedRect.top,
                                           lphc->droppedRect.right - lphc->droppedRect.left,
                                           lphc->droppedRect.bottom - lphc->droppedRect.top,
                                           hwnd, (HMENU)ID_CB_LISTBOX,
                                           (HINSTANCE)GetWindowLongPtrW( hwnd, GWLP_HINSTANCE ), lphc );
      else
          lphc->hWndLBox = CreateWindowExA(lbeExStyle, "ComboLBox", NULL, lbeStyle,
                                           lphc->droppedRect.left,
                                           lphc->droppedRect.top,
                                           lphc->droppedRect.right - lphc->droppedRect.left,
                                           lphc->droppedRect.bottom - lphc->droppedRect.top,
                                           hwnd, (HMENU)ID_CB_LISTBOX,
                                           (HINSTANCE)GetWindowLongPtrW( hwnd, GWLP_HINSTANCE ), lphc );
 
      if( lphc->hWndLBox )
      {
      BOOL  bEdit = TRUE;
      lbeStyle = WS_CHILD | WS_VISIBLE | ES_NOHIDESEL | ES_LEFT | ES_COMBO;
 
      if( lphc->wState & CBF_EDIT )
      {
          if( lphc->dwStyle & CBS_OEMCONVERT )
          lbeStyle |= ES_OEMCONVERT;
          if( lphc->dwStyle & CBS_AUTOHSCROLL )
          lbeStyle |= ES_AUTOHSCROLL;
          if( lphc->dwStyle & CBS_LOWERCASE )
          lbeStyle |= ES_LOWERCASE;
          else if( lphc->dwStyle & CBS_UPPERCASE )
          lbeStyle |= ES_UPPERCASE;
 
              if (!IsWindowEnabled(hwnd)) lbeStyle |= WS_DISABLED;
 
              if (unicode)
                  lphc->hWndEdit = CreateWindowExW(0, editName, NULL, lbeStyle,
                                                   lphc->textRect.left, lphc->textRect.top,
                                                   lphc->textRect.right - lphc->textRect.left,
                                                   lphc->textRect.bottom - lphc->textRect.top,
                                                   hwnd, (HMENU)ID_CB_EDIT,
                                                   (HINSTANCE)GetWindowLongPtrW( hwnd, GWLP_HINSTANCE ), NULL );
              else
                  lphc->hWndEdit = CreateWindowExA(0, "Edit", NULL, lbeStyle,
                                                   lphc->textRect.left, lphc->textRect.top,
                                                   lphc->textRect.right - lphc->textRect.left,
                                                   lphc->textRect.bottom - lphc->textRect.top,
                                                   hwnd, (HMENU)ID_CB_EDIT,
                                                   (HINSTANCE)GetWindowLongPtrW( hwnd, GWLP_HINSTANCE ), NULL );
 
          if( !lphc->hWndEdit )
        bEdit = FALSE;
      }
 
          if( bEdit )
      {
        if( CB_GETTYPE(lphc) != CBS_SIMPLE )
        {
              /* Now do the trick with parent */
          SetParent(lphc->hWndLBox, HWND_DESKTOP);
              /*
               * If the combo is a dropdown, we must resize the control
           * to fit only the text area and button. To do this,
           * we send a dummy resize and the WM_WINDOWPOSCHANGING message
           * will take care of setting the height for us.
               */
          CBForceDummyResize(lphc);
        }
 
        TRACE("init done\n");
        return 0;
      }
      ERR("edit control failure.\n");
      } else ERR("listbox failure.\n");
  } else ERR("no owner for visible combo.\n");
 
  /* CreateWindow() will send WM_NCDESTROY to cleanup */
 
  return -1;
}

COMBO_FlipListbox()

BOOL COMBO_FlipListbox	(	LPHEADCOMBO	lphc,
		BOOL	ok,
		BOOL	bRedrawButton
	)

Definition at line 1145 of file combo.c.

{
   if( lphc->wState & CBF_DROPPED )
   {
       CBRollUp( lphc, ok, bRedrawButton );
       return FALSE;
   }
 
   CBDropDown( lphc );
   return TRUE;
}

COMBO_Font()

static void COMBO_Font ( LPHEADCOMBO  lphc, HFONT  hFont, BOOL  bRedraw  )

static

Definition at line 1578 of file combo.c.

{
  /*
   * Set the font
   */
  lphc->hFont = hFont;
 
  /*
   * Propagate to owned windows.
   */
  if( lphc->wState & CBF_EDIT )
      SendMessageW(lphc->hWndEdit, WM_SETFONT, (WPARAM)hFont, bRedraw);
  SendMessageW(lphc->hWndLBox, WM_SETFONT, (WPARAM)hFont, bRedraw);
 
  /*
   * Redo the layout of the control.
   */
  if ( CB_GETTYPE(lphc) == CBS_SIMPLE)
  {
    CBCalcPlacement(lphc->self,
            lphc,
            &lphc->textRect,
            &lphc->buttonRect,
            &lphc->droppedRect);
 
    CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
  }
  else
  {
    CBForceDummyResize(lphc);
  }
}

COMBO_GetComboBoxInfo()

static LRESULT COMBO_GetComboBoxInfo ( const HEADCOMBO *  lphc, COMBOBOXINFO *  pcbi  )

static

Definition at line 1785 of file combo.c.

{
    if (!pcbi || (pcbi->cbSize < sizeof(COMBOBOXINFO)))
        return FALSE;
 
    pcbi->rcItem = lphc->textRect;
    pcbi->rcButton = lphc->buttonRect;
    pcbi->stateButton = 0;
    if (lphc->wState & CBF_BUTTONDOWN)
        pcbi->stateButton |= STATE_SYSTEM_PRESSED;
    if (IsRectEmpty(&lphc->buttonRect))
        pcbi->stateButton |= STATE_SYSTEM_INVISIBLE;
    pcbi->hwndCombo = lphc->self;
    pcbi->hwndItem = lphc->hWndEdit;
    pcbi->hwndList = lphc->hWndLBox;
    return TRUE;
}

COMBO_GetTextA()

static LRESULT COMBO_GetTextA ( LPHEADCOMBO  lphc, INT  count, LPSTR  buf  )

static

Definition at line 1434 of file combo.c.

{
    INT length;
 
    if( lphc->wState & CBF_EDIT )
        return SendMessageA( lphc->hWndEdit, WM_GETTEXT, count, (LPARAM)buf );
 
    /* get it from the listbox */
 
    if (!count || !buf) return 0;
    if( lphc->hWndLBox )
    {
        INT idx = SendMessageW(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
        if (idx == LB_ERR) goto error;
        length = SendMessageA(lphc->hWndLBox, LB_GETTEXTLEN, idx, 0 );
        if (length == LB_ERR) goto error;
 
        /* 'length' is without the terminating character */
        if (length >= count)
        {
            LPSTR lpBuffer = HeapAlloc(GetProcessHeap(), 0, (length + 1) );
            if (!lpBuffer) goto error;
            length = SendMessageA(lphc->hWndLBox, LB_GETTEXT, idx, (LPARAM)lpBuffer);
 
            /* truncate if buffer is too short */
            if (length != LB_ERR)
            {
                lstrcpynA( buf, lpBuffer, count );
                length = count;
            }
            HeapFree( GetProcessHeap(), 0, lpBuffer );
        }
        else length = SendMessageA(lphc->hWndLBox, LB_GETTEXT, idx, (LPARAM)buf);
 
        if (length == LB_ERR) return 0;
        return length;
    }
 
 error:  /* error - truncate string, return zero */
    buf[0] = 0;
    return 0;
}

Referenced by ComboWndProc_common().

COMBO_GetTextW()

static LRESULT COMBO_GetTextW ( LPHEADCOMBO  lphc, INT  count, LPWSTR  buf  )

static

Definition at line 1384 of file combo.c.

{
    INT length;
 
    if( lphc->wState & CBF_EDIT )
        return SendMessageW( lphc->hWndEdit, WM_GETTEXT, count, (LPARAM)buf );
 
    /* get it from the listbox */
 
    if (!count || !buf) return 0;
    if( lphc->hWndLBox )
    {
        INT idx = SendMessageW(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
        if (idx == LB_ERR) goto error;
        length = SendMessageW(lphc->hWndLBox, LB_GETTEXTLEN, idx, 0 );
        if (length == LB_ERR) goto error;
 
        /* 'length' is without the terminating character */
        if (length >= count)
        {
            LPWSTR lpBuffer = HeapAlloc(GetProcessHeap(), 0, (length + 1) * sizeof(WCHAR));
            if (!lpBuffer) goto error;
            length = SendMessageW(lphc->hWndLBox, LB_GETTEXT, idx, (LPARAM)lpBuffer);
 
            /* truncate if buffer is too short */
            if (length != LB_ERR)
            {
                lstrcpynW( buf, lpBuffer, count );
                length = count;
            }
            HeapFree( GetProcessHeap(), 0, lpBuffer );
        }
        else length = SendMessageW(lphc->hWndLBox, LB_GETTEXT, idx, (LPARAM)buf);
 
        if (length == LB_ERR) return 0;
        return length;
    }
 
 error:  /* error - truncate string, return zero */
    buf[0] = 0;
    return 0;
}

Referenced by ComboWndProc_common().

COMBO_Init()

static BOOL COMBO_Init ( void  )

static

Definition at line 88 of file combo.c.

{
  HDC       hDC;
 
  if( hComboBmp ) return TRUE;
  if( (hDC = CreateCompatibleDC(0)) )
  {
    BOOL    bRet = FALSE;
    if( (hComboBmp = LoadBitmapW(0, MAKEINTRESOURCEW(OBM_COMBO))) )
    {
      BITMAP      bm;
      HBITMAP     hPrevB;
      RECT        r;
 
      GetObjectW( hComboBmp, sizeof(bm), &bm );
      CBitHeight = bm.bmHeight;
      CBitWidth  = bm.bmWidth;
 
      TRACE("combo bitmap [%i,%i]\n", CBitWidth, CBitHeight );
 
      hPrevB = SelectObject( hDC, hComboBmp);
      SetRect( &r, 0, 0, CBitWidth, CBitHeight );
      InvertRect( hDC, &r );
      SelectObject( hDC, hPrevB );
      bRet = TRUE;
    }
    DeleteDC( hDC );
    return bRet;
  }
  return FALSE;
}

COMBO_ItemOp()

static LRESULT COMBO_ItemOp ( LPHEADCOMBO  lphc, UINT  msg, LPARAM  lParam  )

static

Definition at line 1336 of file combo.c.

{
   HWND hWnd = lphc->self;
   UINT id = (UINT)GetWindowLongPtrW( hWnd, GWLP_ID );
 
   TRACE("[%p]: ownerdraw op %04x\n", lphc->self, msg );
 
   switch( msg )
   {
   case WM_DELETEITEM:
       {
           DELETEITEMSTRUCT *lpIS = (DELETEITEMSTRUCT *)lParam;
           lpIS->CtlType  = ODT_COMBOBOX;
           lpIS->CtlID    = id;
           lpIS->hwndItem = hWnd;
           break;
       }
   case WM_DRAWITEM:
       {
           DRAWITEMSTRUCT *lpIS = (DRAWITEMSTRUCT *)lParam;
           lpIS->CtlType  = ODT_COMBOBOX;
           lpIS->CtlID    = id;
           lpIS->hwndItem = hWnd;
           break;
       }
   case WM_COMPAREITEM:
       {
           COMPAREITEMSTRUCT *lpIS = (COMPAREITEMSTRUCT *)lParam;
           lpIS->CtlType  = ODT_COMBOBOX;
           lpIS->CtlID    = id;
           lpIS->hwndItem = hWnd;
           break;
       }
   case WM_MEASUREITEM:
       {
           MEASUREITEMSTRUCT *lpIS = (MEASUREITEMSTRUCT *)lParam;
           lpIS->CtlType  = ODT_COMBOBOX;
           lpIS->CtlID    = id;
           break;
       }
   }
   return SendMessageW(lphc->owner, msg, id, lParam);
}

COMBO_KillFocus()

static void COMBO_KillFocus ( LPHEADCOMBO  lphc )

static

Definition at line 1191 of file combo.c.

{
   HWND hWnd = lphc->self;
 
   if( lphc->wState & CBF_FOCUSED )
   {
       CBRollUp( lphc, FALSE, TRUE );
       if( IsWindow( hWnd ) )
       {
           if( CB_GETTYPE(lphc) == CBS_DROPDOWNLIST )
               SendMessageW(lphc->hWndLBox, LB_CARETOFF, 0, 0);
 
       lphc->wState &= ~CBF_FOCUSED;
 
           /* redraw text */
       if( !(lphc->wState & CBF_EDIT) )
         InvalidateRect(lphc->self, &lphc->textRect, TRUE);
 
           CB_NOTIFY( lphc, CBN_KILLFOCUS );
       }
   }
}

COMBO_LButtonDown()

static void COMBO_LButtonDown ( LPHEADCOMBO  lphc, LPARAM  lParam  )

static

Definition at line 1673 of file combo.c.

{
   POINT     pt;
   BOOL      bButton;
   HWND      hWnd = lphc->self;
 
   pt.x = (short)LOWORD(lParam);
   pt.y = (short)HIWORD(lParam);
   bButton = PtInRect(&lphc->buttonRect, pt);
 
   if( (CB_GETTYPE(lphc) == CBS_DROPDOWNLIST) ||
       (bButton && (CB_GETTYPE(lphc) == CBS_DROPDOWN)) )
   {
       lphc->wState |= CBF_BUTTONDOWN;
       if( lphc->wState & CBF_DROPPED )
       {
       /* got a click to cancel selection */
 
           lphc->wState &= ~CBF_BUTTONDOWN;
           CBRollUp( lphc, TRUE, FALSE );
       if( !IsWindow( hWnd ) ) return;
 
           if( lphc->wState & CBF_CAPTURE )
           {
               lphc->wState &= ~CBF_CAPTURE;
               ReleaseCapture();
           }
       }
       else
       {
       /* drop down the listbox and start tracking */
 
           lphc->wState |= CBF_CAPTURE;
           SetCapture( hWnd );
           CBDropDown( lphc );
       }
       if( bButton ) CBRepaintButton( lphc );
   }
}

COMBO_LButtonUp()

static void COMBO_LButtonUp ( LPHEADCOMBO  lphc )

static

Definition at line 1718 of file combo.c.

{
   if( lphc->wState & CBF_CAPTURE )
   {
       lphc->wState &= ~CBF_CAPTURE;
       if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
       {
       INT index = CBUpdateLBox( lphc, TRUE );
       /* Update edit only if item is in the list */
       if(index >= 0)
       {
           lphc->wState |= CBF_NOLBSELECT;
           CBUpdateEdit( lphc, index );
           lphc->wState &= ~CBF_NOLBSELECT;
       }
       }
       ReleaseCapture();
       SetCapture(lphc->hWndLBox);
   }
 
   if( lphc->wState & CBF_BUTTONDOWN )
   {
       lphc->wState &= ~CBF_BUTTONDOWN;
       CBRepaintButton( lphc );
   }
}

COMBO_MouseMove()

static void COMBO_MouseMove ( LPHEADCOMBO  lphc, WPARAM  wParam, LPARAM  lParam  )

static

Definition at line 1751 of file combo.c.

{
   POINT  pt;
   RECT   lbRect;
 
   pt.x = (short)LOWORD(lParam);
   pt.y = (short)HIWORD(lParam);
 
   if( lphc->wState & CBF_BUTTONDOWN )
   {
     BOOL bButton;
 
     bButton = PtInRect(&lphc->buttonRect, pt);
 
     if( !bButton )
     {
       lphc->wState &= ~CBF_BUTTONDOWN;
       CBRepaintButton( lphc );
     }
   }
 
   GetClientRect( lphc->hWndLBox, &lbRect );
   MapWindowPoints( lphc->self, lphc->hWndLBox, &pt, 1 );
   if( PtInRect(&lbRect, pt) )
   {
       lphc->wState &= ~CBF_CAPTURE;
       ReleaseCapture();
       if( CB_GETTYPE(lphc) == CBS_DROPDOWN ) CBUpdateLBox( lphc, TRUE );
 
       /* hand over pointer tracking */
       SendMessageW(lphc->hWndLBox, WM_LBUTTONDOWN, wParam, lParam);
   }
}

COMBO_NCCreate()

static LRESULT COMBO_NCCreate ( HWND  hwnd, LONG  style  )

static

Definition at line 135 of file combo.c.

{
    LPHEADCOMBO lphc;
 
    if (COMBO_Init() && (lphc = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(HEADCOMBO))) )
    {
        lphc->self = hwnd;
        SetWindowLongPtrW( hwnd, 0, (LONG_PTR)lphc );
 
#ifdef __REACTOS__
        COMBO_update_uistate(lphc);
#endif
 
       /* some braindead apps do try to use scrollbar/border flags */
 
    lphc->dwStyle = style & ~(WS_BORDER | WS_HSCROLL | WS_VSCROLL);
        SetWindowLongPtrW( hwnd, GWL_STYLE, style & ~(WS_BORDER | WS_HSCROLL | WS_VSCROLL) );
 
    /*
     * We also have to remove the client edge style to make sure
     * we don't end-up with a non client area.
     */
        SetWindowLongPtrW( hwnd, GWL_EXSTYLE,
                        GetWindowLongPtrW( hwnd, GWL_EXSTYLE ) & ~WS_EX_CLIENTEDGE );
 
    if( !(style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) )
              lphc->dwStyle |= CBS_HASSTRINGS;
    if( !(GetWindowLongPtrW( hwnd, GWL_EXSTYLE ) & WS_EX_NOPARENTNOTIFY) )
          lphc->wState |= CBF_NOTIFY;
 
        TRACE("[%p], style = %08x\n", lphc, lphc->dwStyle );
        return TRUE;
    }
    return FALSE;
}

COMBO_NCDestroy()

static LRESULT COMBO_NCDestroy ( LPHEADCOMBO  lphc )

static

Definition at line 174 of file combo.c.

{
 
   if( lphc )
   {
       TRACE("[%p]: freeing storage\n", lphc->self);
 
       if( (CB_GETTYPE(lphc) != CBS_SIMPLE) && lphc->hWndLBox )
       DestroyWindow( lphc->hWndLBox );
 
       SetWindowLongPtrW( lphc->self, 0, 0 );
       HeapFree( GetProcessHeap(), 0, lphc );
   }
   return 0;
}

COMBO_Paint()

static LRESULT COMBO_Paint ( LPHEADCOMBO  lphc, HDC  hParamDC  )

static

Definition at line 856 of file combo.c.

{
  PAINTSTRUCT ps;
  HDC   hDC;
 
  hDC = (hParamDC) ? hParamDC
           : BeginPaint( lphc->self, &ps);
 
  TRACE("hdc=%p\n", hDC);
 
  if( hDC && !(lphc->wState & CBF_NOREDRAW) )
  {
      HBRUSH    hPrevBrush, hBkgBrush;
 
      /*
       * Retrieve the background brush and select it in the
       * DC.
       */
      hBkgBrush = COMBO_PrepareColors(lphc, hDC);
 
      hPrevBrush = SelectObject( hDC, hBkgBrush );
      if (!(lphc->wState & CBF_EDIT))
        FillRect(hDC, &lphc->textRect, hBkgBrush);
 
      /*
       * In non 3.1 look, there is a sunken border on the combobox
       */
      CBPaintBorder(lphc->self, lphc, hDC);
 
      if( !IsRectEmpty(&lphc->buttonRect) )
      {
    CBPaintButton(lphc, hDC, lphc->buttonRect);
      }
 
      /* paint the edit control padding area */
      if (CB_GETTYPE(lphc) != CBS_DROPDOWNLIST)
      {
          RECT rPadEdit = lphc->textRect;
 
          InflateRect(&rPadEdit, EDIT_CONTROL_PADDING(), EDIT_CONTROL_PADDING());
 
          FrameRect( hDC, &rPadEdit, GetSysColorBrush(COLOR_WINDOW) );
      }
 
      if( !(lphc->wState & CBF_EDIT) )
    CBPaintText( lphc, hDC );
 
      if( hPrevBrush )
    SelectObject( hDC, hPrevBrush );
  }
 
  if( !hParamDC )
    EndPaint(lphc->self, &ps);
 
  return 0;
}

COMBO_PrepareColors()

static HBRUSH COMBO_PrepareColors ( LPHEADCOMBO  lphc, HDC  hDC  )

static

Definition at line 651 of file combo.c.

{
  HBRUSH  hBkgBrush;
 
  /*
   * Get the background brush for this control.
   */
  if (CB_DISABLED(lphc))
  {
#ifdef __REACTOS__
    hBkgBrush = GetControlColor(lphc->owner, lphc->self, hDC, WM_CTLCOLORSTATIC);
#else
    hBkgBrush = (HBRUSH)SendMessageW(lphc->owner, WM_CTLCOLORSTATIC,
                     (WPARAM)hDC, (LPARAM)lphc->self );
#endif
    /*
     * We have to change the text color since WM_CTLCOLORSTATIC will
     * set it to the "enabled" color. This is the same behavior as the
     * edit control
     */
    SetTextColor(hDC, GetSysColor(COLOR_GRAYTEXT));
  }
  else
  {
      /* FIXME: In which cases WM_CTLCOLORLISTBOX should be sent? */
#ifdef __REACTOS__
      hBkgBrush = GetControlColor(lphc->owner, lphc->self, hDC, WM_CTLCOLOREDIT);
#else
      hBkgBrush = (HBRUSH)SendMessageW(lphc->owner, WM_CTLCOLOREDIT,
                       (WPARAM)hDC, (LPARAM)lphc->self );
#endif
  }
 
  /*
   * Catch errors.
   */
  if( !hBkgBrush )
    hBkgBrush = GetSysColorBrush(COLOR_WINDOW);
 
  return hBkgBrush;
}

COMBO_SelectString()

static LRESULT COMBO_SelectString ( LPHEADCOMBO  lphc, INT  start, LPARAM  pText, BOOL  unicode  )

static

Definition at line 1654 of file combo.c.

{
   INT index = unicode ? SendMessageW(lphc->hWndLBox, LB_SELECTSTRING, (WPARAM)start, pText) :
                         SendMessageA(lphc->hWndLBox, LB_SELECTSTRING, (WPARAM)start, pText);
   if( index >= 0 )
   {
     if( lphc->wState & CBF_EDIT )
       CBUpdateEdit( lphc, index );
     else
     {
       InvalidateRect(lphc->self, &lphc->textRect, TRUE);
     }
   }
   return (LRESULT)index;
}

COMBO_SetFocus()

static void COMBO_SetFocus ( LPHEADCOMBO  lphc )

static

Definition at line 1169 of file combo.c.

{
   if( !(lphc->wState & CBF_FOCUSED) )
   {
       if( CB_GETTYPE(lphc) == CBS_DROPDOWNLIST )
           SendMessageW(lphc->hWndLBox, LB_CARETON, 0, 0);
 
       /* This is wrong. Message sequences seem to indicate that this
          is set *after* the notify. */
       /* lphc->wState |= CBF_FOCUSED;  */
 
       if( !(lphc->wState & CBF_EDIT) )
     InvalidateRect(lphc->self, &lphc->textRect, TRUE);
 
       CB_NOTIFY( lphc, CBN_SETFOCUS );
       lphc->wState |= CBF_FOCUSED;
   }
}

COMBO_SetItemHeight()

static LRESULT COMBO_SetItemHeight ( LPHEADCOMBO  lphc, INT  index, INT  height  )

static

Definition at line 1615 of file combo.c.

{
   LRESULT  lRet = CB_ERR;
 
   if( index == -1 ) /* set text field height */
   {
       if( height < 32768 )
       {
           lphc->editHeight = height + 2;  /* Is the 2 for 2*EDIT_CONTROL_PADDING? */
 
     /*
      * Redo the layout of the control.
      */
     if ( CB_GETTYPE(lphc) == CBS_SIMPLE)
     {
       CBCalcPlacement(lphc->self,
               lphc,
               &lphc->textRect,
               &lphc->buttonRect,
               &lphc->droppedRect);
 
       CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
     }
     else
     {
       CBForceDummyResize(lphc);
     }
 
       lRet = height;
       }
   }
   else if ( CB_OWNERDRAWN(lphc) )  /* set listbox item height */
       lRet = SendMessageW(lphc->hWndLBox, LB_SETITEMHEIGHT, (WPARAM)index, (LPARAM)height);
   return lRet;
}

COMBO_Size()

static void COMBO_Size ( LPHEADCOMBO  lphc )

static

Definition at line 1526 of file combo.c.

{
  /*
   * Those controls are always the same height. So we have to make sure
   * they are not resized to another value.
   */
  if( CB_GETTYPE(lphc) != CBS_SIMPLE )
  {
    int newComboHeight, curComboHeight, curComboWidth;
    RECT rc;
 
    GetWindowRect(lphc->self, &rc);
    curComboHeight = rc.bottom - rc.top;
    curComboWidth = rc.right - rc.left;
    newComboHeight = CBGetTextAreaHeight(lphc->self, lphc) + 2*COMBO_YBORDERSIZE();
 
    /*
     * Resizing a combobox has another side effect, it resizes the dropped
     * rectangle as well. However, it does it only if the new height for the
     * combobox is more than the height it should have. In other words,
     * if the application resizing the combobox only had the intention to resize
     * the actual control, for example, to do the layout of a dialog that is
     * resized, the height of the dropdown is not changed.
     */
    if( curComboHeight > newComboHeight )
    {
      TRACE("oldComboHeight=%d, newComboHeight=%d, oldDropBottom=%d, oldDropTop=%d\n",
            curComboHeight, newComboHeight, lphc->droppedRect.bottom,
            lphc->droppedRect.top);
      lphc->droppedRect.bottom = lphc->droppedRect.top + curComboHeight - newComboHeight;
    }
    /*
     * Restore original height
     */
    if( curComboHeight != newComboHeight )
      SetWindowPos(lphc->self, 0, 0, 0, curComboWidth, newComboHeight,
            SWP_NOZORDER|SWP_NOMOVE|SWP_NOACTIVATE|SWP_NOREDRAW);
  }
 
  CBCalcPlacement(lphc->self,
          lphc,
          &lphc->textRect,
          &lphc->buttonRect,
          &lphc->droppedRect);
 
  CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, FALSE );
}

ComboWndProc_common()

LRESULT WINAPI ComboWndProc_common	(	HWND	hwnd,
		UINT	message,
		WPARAM	wParam,
		LPARAM	lParam,
		BOOL	unicode
	)

Definition at line 1822 of file combo.c.

{
      LPHEADCOMBO lphc = (LPHEADCOMBO)GetWindowLongPtrW( hwnd, 0 );
#ifdef __REACTOS__
      PWND pWnd;
 
      pWnd = ValidateHwnd(hwnd);
      if (pWnd)
      {
         if (!pWnd->fnid)
         {
            NtUserSetWindowFNID(hwnd, FNID_COMBOBOX);
         }
         else
         {
            if (pWnd->fnid != FNID_COMBOBOX)
            {
               ERR("Wrong window class for ComboBox! fnId 0x%x\n",pWnd->fnid);
               return 0;
            }
         }
      }
#endif
 
      TRACE("[%p]: msg %s wp %08lx lp %08lx\n",
            hwnd, SPY_GetMsgName(message, hwnd), wParam, lParam );
 
#ifndef __REACTOS__
      if (!IsWindow(hwnd)) return 0;
#endif
 
      if( lphc || message == WM_NCCREATE )
      switch(message)
      {
 
    /* System messages */
 
        case WM_NCCREATE:
    {
        LONG style = unicode ? ((LPCREATESTRUCTW)lParam)->style :
                       ((LPCREATESTRUCTA)lParam)->style;
                return COMBO_NCCreate(hwnd, style);
    }
        case WM_NCDESTROY:
        COMBO_NCDestroy(lphc);
#ifdef __REACTOS__
        NtUserSetWindowFNID(hwnd, FNID_DESTROY);
#endif
        break;/* -> DefWindowProc */
 
        case WM_CREATE:
    {
        HWND hwndParent;
        LONG style;
        if(unicode)
        {
            hwndParent = ((LPCREATESTRUCTW)lParam)->hwndParent;
            style = ((LPCREATESTRUCTW)lParam)->style;
        }
        else
        {
            hwndParent = ((LPCREATESTRUCTA)lParam)->hwndParent;
            style = ((LPCREATESTRUCTA)lParam)->style;
        }
                return COMBO_Create(hwnd, lphc, hwndParent, style, unicode);
    }
 
        case WM_PRINTCLIENT:
        /* Fallthrough */
        case WM_PAINT:
        /* wParam may contain a valid HDC! */
        return  COMBO_Paint(lphc, (HDC)wParam);
 
    case WM_ERASEBKGND:
                /* do all painting in WM_PAINT like Windows does */
                return 1;
 
    case WM_GETDLGCODE:
    {
        LRESULT result = DLGC_WANTARROWS | DLGC_WANTCHARS;
        if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
        {
           int vk = (int)((LPMSG)lParam)->wParam;
 
           if ((vk == VK_RETURN || vk == VK_ESCAPE) && (lphc->wState & CBF_DROPPED))
               result |= DLGC_WANTMESSAGE;
        }
        return  result;
    }
    case WM_SIZE:
            if( lphc->hWndLBox &&
          !(lphc->wState & CBF_NORESIZE) ) COMBO_Size( lphc );
        return  TRUE;
    case WM_SETFONT:
        COMBO_Font( lphc, (HFONT)wParam, (BOOL)lParam );
        return  TRUE;
    case WM_GETFONT:
        return  (LRESULT)lphc->hFont;
    case WM_SETFOCUS:
               if( lphc->wState & CBF_EDIT ) {
                   SetFocus( lphc->hWndEdit );
                   /* The first time focus is received, select all the text */
                   if( !(lphc->wState & CBF_BEENFOCUSED) ) {
                       SendMessageW(lphc->hWndEdit, EM_SETSEL, 0, -1);
                       lphc->wState |= CBF_BEENFOCUSED;
                   }
               }
        else
            COMBO_SetFocus( lphc );
        return  TRUE;
    case WM_KILLFOCUS:
            {
                HWND hwndFocus = WIN_GetFullHandle( (HWND)wParam );
        if( !hwndFocus ||
            (hwndFocus != lphc->hWndEdit && hwndFocus != lphc->hWndLBox ))
            COMBO_KillFocus( lphc );
        return  TRUE;
            }
    case WM_COMMAND:
        return  COMBO_Command( lphc, wParam, WIN_GetFullHandle( (HWND)lParam ) );
    case WM_GETTEXT:
            return unicode ? COMBO_GetTextW( lphc, wParam, (LPWSTR)lParam )
                           : COMBO_GetTextA( lphc, wParam, (LPSTR)lParam );
    case WM_SETTEXT:
    case WM_GETTEXTLENGTH:
    case WM_CLEAR:
                if ((message == WM_GETTEXTLENGTH) && !ISWIN31 && !(lphc->wState & CBF_EDIT))
                {
                    int j = SendMessageW(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
                    if (j == -1) return 0;
                    return unicode ? SendMessageW(lphc->hWndLBox, LB_GETTEXTLEN, j, 0) :
                                     SendMessageA(lphc->hWndLBox, LB_GETTEXTLEN, j, 0);
                }
        else if( lphc->wState & CBF_EDIT )
        {
            LRESULT ret;
            lphc->wState |= CBF_NOEDITNOTIFY;
            ret = unicode ? SendMessageW(lphc->hWndEdit, message, wParam, lParam) :
                    SendMessageA(lphc->hWndEdit, message, wParam, lParam);
            lphc->wState &= ~CBF_NOEDITNOTIFY;
            return ret;
        }
        else return CB_ERR;
    case WM_CUT:
        case WM_PASTE:
    case WM_COPY:
        if( lphc->wState & CBF_EDIT )
        {
            return unicode ? SendMessageW(lphc->hWndEdit, message, wParam, lParam) :
                     SendMessageA(lphc->hWndEdit, message, wParam, lParam);
        }
        else return  CB_ERR;
 
    case WM_DRAWITEM:
    case WM_DELETEITEM:
    case WM_COMPAREITEM:
    case WM_MEASUREITEM:
        return COMBO_ItemOp(lphc, message, lParam);
    case WM_ENABLE:
        if( lphc->wState & CBF_EDIT )
            EnableWindow( lphc->hWndEdit, (BOOL)wParam );
        EnableWindow( lphc->hWndLBox, (BOOL)wParam );
 
        /* Force the control to repaint when the enabled state changes. */
        InvalidateRect(lphc->self, NULL, TRUE);
        return  TRUE;
    case WM_SETREDRAW:
        if( wParam )
            lphc->wState &= ~CBF_NOREDRAW;
        else
            lphc->wState |= CBF_NOREDRAW;
 
        if( lphc->wState & CBF_EDIT )
            SendMessageW(lphc->hWndEdit, message, wParam, lParam);
        SendMessageW(lphc->hWndLBox, message, wParam, lParam);
        return  0;
    case WM_SYSKEYDOWN:
#ifdef __REACTOS__
        if( KF_ALTDOWN & HIWORD(lParam) )
#else
        if( KEYDATA_ALT & HIWORD(lParam) )
#endif
            if( wParam == VK_UP || wParam == VK_DOWN )
            COMBO_FlipListbox( lphc, FALSE, FALSE );
                return  0;
 
    case WM_KEYDOWN:
        if ((wParam == VK_RETURN || wParam == VK_ESCAPE) &&
             (lphc->wState & CBF_DROPPED))
        {
           CBRollUp( lphc, wParam == VK_RETURN, FALSE );
           return TRUE;
        }
               else if ((wParam == VK_F4) && !(lphc->wState & CBF_EUI))
               {
                  COMBO_FlipListbox( lphc, FALSE, FALSE );
                  return TRUE;
               }
               /* fall through */
    case WM_CHAR:
    case WM_IME_CHAR:
    {
        HWND hwndTarget;
 
        if( lphc->wState & CBF_EDIT )
            hwndTarget = lphc->hWndEdit;
        else
            hwndTarget = lphc->hWndLBox;
 
        return unicode ? SendMessageW(hwndTarget, message, wParam, lParam) :
                 SendMessageA(hwndTarget, message, wParam, lParam);
    }
    case WM_LBUTTONDOWN:
        if( !(lphc->wState & CBF_FOCUSED) ) SetFocus( lphc->self );
        if( lphc->wState & CBF_FOCUSED ) COMBO_LButtonDown( lphc, lParam );
        return  TRUE;
    case WM_LBUTTONUP:
        COMBO_LButtonUp( lphc );
        return  TRUE;
    case WM_MOUSEMOVE:
        if( lphc->wState & CBF_CAPTURE )
            COMBO_MouseMove( lphc, wParam, lParam );
        return  TRUE;
 
        case WM_MOUSEWHEEL:
                if (wParam & (MK_SHIFT | MK_CONTROL))
                    return unicode ? DefWindowProcW(hwnd, message, wParam, lParam) :
                     DefWindowProcA(hwnd, message, wParam, lParam);
 
                if (GET_WHEEL_DELTA_WPARAM(wParam) > 0) return SendMessageW(hwnd, WM_KEYDOWN, VK_UP, 0);
                if (GET_WHEEL_DELTA_WPARAM(wParam) < 0) return SendMessageW(hwnd, WM_KEYDOWN, VK_DOWN, 0);
                return TRUE;
 
        case WM_CTLCOLOR:
        case WM_CTLCOLORMSGBOX:
        case WM_CTLCOLOREDIT:
        case WM_CTLCOLORLISTBOX:
        case WM_CTLCOLORBTN:
        case WM_CTLCOLORDLG:
        case WM_CTLCOLORSCROLLBAR:
        case WM_CTLCOLORSTATIC:
#ifdef __REACTOS__
            if ( pWnd && !(pWnd->state2 & WNDS2_WIN40COMPAT) ) break; // Must be Win 4.0 and above.
#endif
            if (lphc->owner)
                return SendMessageW(lphc->owner, message, wParam, lParam);
        break;
 
    /* Combo messages */
 
    case CB_ADDSTRING:
        if( unicode )
                {
                    if( lphc->dwStyle & CBS_LOWERCASE )
                        CharLowerW((LPWSTR)lParam);
                    else if( lphc->dwStyle & CBS_UPPERCASE )
                        CharUpperW((LPWSTR)lParam);
                    return SendMessageW(lphc->hWndLBox, LB_ADDSTRING, 0, lParam);
                }
                else /* unlike the unicode version, the ansi version does not overwrite
                        the string if converting case */
                {
                    char *string = NULL;
                    LRESULT ret;
                    if( lphc->dwStyle & CBS_LOWERCASE )
                    {
                        string = strdupA((LPSTR)lParam);
                        CharLowerA(string);
                    }
 
                    else if( lphc->dwStyle & CBS_UPPERCASE )
                    {
                        string = strdupA((LPSTR)lParam);
                        CharUpperA(string);
                    }
 
                    ret = SendMessageA(lphc->hWndLBox, LB_ADDSTRING, 0, string ? (LPARAM)string : lParam);
                    HeapFree(GetProcessHeap(), 0, string);
                    return ret;
                }
    case CB_INSERTSTRING:
        if( unicode )
                {
                    if( lphc->dwStyle & CBS_LOWERCASE )
                        CharLowerW((LPWSTR)lParam);
                    else if( lphc->dwStyle & CBS_UPPERCASE )
                        CharUpperW((LPWSTR)lParam);
                    return SendMessageW(lphc->hWndLBox, LB_INSERTSTRING, wParam, lParam);
                }
                else
                {
                    if( lphc->dwStyle & CBS_LOWERCASE )
                        CharLowerA((LPSTR)lParam);
                    else if( lphc->dwStyle & CBS_UPPERCASE )
                        CharUpperA((LPSTR)lParam);
 
                    return SendMessageA(lphc->hWndLBox, LB_INSERTSTRING, wParam, lParam);
                }
    case CB_DELETESTRING:
        return unicode ? SendMessageW(lphc->hWndLBox, LB_DELETESTRING, wParam, 0) :
                 SendMessageA(lphc->hWndLBox, LB_DELETESTRING, wParam, 0);
    case CB_SELECTSTRING:
        return COMBO_SelectString(lphc, (INT)wParam, lParam, unicode);
    case CB_FINDSTRING:
        return unicode ? SendMessageW(lphc->hWndLBox, LB_FINDSTRING, wParam, lParam) :
                 SendMessageA(lphc->hWndLBox, LB_FINDSTRING, wParam, lParam);
    case CB_FINDSTRINGEXACT:
        return unicode ? SendMessageW(lphc->hWndLBox, LB_FINDSTRINGEXACT, wParam, lParam) :
                 SendMessageA(lphc->hWndLBox, LB_FINDSTRINGEXACT, wParam, lParam);
    case CB_SETITEMHEIGHT:
        return  COMBO_SetItemHeight( lphc, (INT)wParam, (INT)lParam);
    case CB_GETITEMHEIGHT:
        if( (INT)wParam >= 0 )  /* listbox item */
                    return SendMessageW(lphc->hWndLBox, LB_GETITEMHEIGHT, wParam, 0);
                return  CBGetTextAreaHeight(hwnd, lphc);
    case CB_RESETCONTENT:
        SendMessageW(lphc->hWndLBox, LB_RESETCONTENT, 0, 0);
                if( (lphc->wState & CBF_EDIT) && CB_HASSTRINGS(lphc) )
        {
            static const WCHAR empty_stringW[] = { 0 };
                    SendMessageW(lphc->hWndEdit, WM_SETTEXT, 0, (LPARAM)empty_stringW);
        }
                else
                    InvalidateRect(lphc->self, NULL, TRUE);
        return  TRUE;
    case CB_INITSTORAGE:
        return SendMessageW(lphc->hWndLBox, LB_INITSTORAGE, wParam, lParam);
    case CB_GETHORIZONTALEXTENT:
        return SendMessageW(lphc->hWndLBox, LB_GETHORIZONTALEXTENT, 0, 0);
    case CB_SETHORIZONTALEXTENT:
        return SendMessageW(lphc->hWndLBox, LB_SETHORIZONTALEXTENT, wParam, 0);
    case CB_GETTOPINDEX:
        return SendMessageW(lphc->hWndLBox, LB_GETTOPINDEX, 0, 0);
    case CB_GETLOCALE:
        return SendMessageW(lphc->hWndLBox, LB_GETLOCALE, 0, 0);
    case CB_SETLOCALE:
        return SendMessageW(lphc->hWndLBox, LB_SETLOCALE, wParam, 0);
    case CB_SETDROPPEDWIDTH:
        if( (CB_GETTYPE(lphc) == CBS_SIMPLE) ||
            (INT)wParam >= 32768 )
            return CB_ERR;
        /* new value must be higher than combobox width */
        if((INT)wParam >= lphc->droppedRect.right - lphc->droppedRect.left)
            lphc->droppedWidth = wParam;
        else if(wParam)
            lphc->droppedWidth = 0;
 
        /* recalculate the combobox area */
        CBCalcPlacement(hwnd, lphc, &lphc->textRect, &lphc->buttonRect, &lphc->droppedRect );
 
        /* fall through */
    case CB_GETDROPPEDWIDTH:
        if( lphc->droppedWidth )
                    return  lphc->droppedWidth;
        return  lphc->droppedRect.right - lphc->droppedRect.left;
    case CB_GETDROPPEDCONTROLRECT:
        if( lParam ) CBGetDroppedControlRect(lphc, (LPRECT)lParam );
        return  CB_OKAY;
    case CB_GETDROPPEDSTATE:
        return (lphc->wState & CBF_DROPPED) != 0;
    case CB_DIR:
        return unicode ? SendMessageW(lphc->hWndLBox, LB_DIR, wParam, lParam) :
                 SendMessageA(lphc->hWndLBox, LB_DIR, wParam, lParam);
 
    case CB_SHOWDROPDOWN:
        if( CB_GETTYPE(lphc) != CBS_SIMPLE )
        {
            if( wParam )
            {
            if( !(lphc->wState & CBF_DROPPED) )
                CBDropDown( lphc );
            }
            else
            if( lphc->wState & CBF_DROPPED )
                    CBRollUp( lphc, FALSE, TRUE );
        }
        return  TRUE;
    case CB_GETCOUNT:
        return SendMessageW(lphc->hWndLBox, LB_GETCOUNT, 0, 0);
    case CB_GETCURSEL:
        return SendMessageW(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
    case CB_SETCURSEL:
        lParam = SendMessageW(lphc->hWndLBox, LB_SETCURSEL, wParam, 0);
            if( lParam >= 0 )
                SendMessageW(lphc->hWndLBox, LB_SETTOPINDEX, wParam, 0);
 
        /* no LBN_SELCHANGE in this case, update manually */
        CBPaintText( lphc, NULL );
        lphc->wState &= ~CBF_SELCHANGE;
            return  lParam;
    case CB_GETLBTEXT:
        return unicode ? SendMessageW(lphc->hWndLBox, LB_GETTEXT, wParam, lParam) :
                 SendMessageA(lphc->hWndLBox, LB_GETTEXT, wParam, lParam);
    case CB_GETLBTEXTLEN:
                return unicode ? SendMessageW(lphc->hWndLBox, LB_GETTEXTLEN, wParam, 0) :
                                 SendMessageA(lphc->hWndLBox, LB_GETTEXTLEN, wParam, 0);
    case CB_GETITEMDATA:
        return SendMessageW(lphc->hWndLBox, LB_GETITEMDATA, wParam, 0);
    case CB_SETITEMDATA:
        return SendMessageW(lphc->hWndLBox, LB_SETITEMDATA, wParam, lParam);
    case CB_GETEDITSEL:
        /* Edit checks passed parameters itself */
        if( lphc->wState & CBF_EDIT )
            return SendMessageW(lphc->hWndEdit, EM_GETSEL, wParam, lParam);
        return  CB_ERR;
    case CB_SETEDITSEL:
        if( lphc->wState & CBF_EDIT )
                    return SendMessageW(lphc->hWndEdit, EM_SETSEL,
              (INT)(INT16)LOWORD(lParam), (INT)(INT16)HIWORD(lParam) );
        return  CB_ERR;
    case CB_SETEXTENDEDUI:
                if( CB_GETTYPE(lphc) == CBS_SIMPLE )
                    return  CB_ERR;
        if( wParam )
            lphc->wState |= CBF_EUI;
        else lphc->wState &= ~CBF_EUI;
        return  CB_OKAY;
    case CB_GETEXTENDEDUI:
        return (lphc->wState & CBF_EUI) != 0;
    case CB_GETCOMBOBOXINFO:
        return COMBO_GetComboBoxInfo(lphc, (COMBOBOXINFO *)lParam);
    case CB_LIMITTEXT:
        if( lphc->wState & CBF_EDIT )
            return SendMessageW(lphc->hWndEdit, EM_LIMITTEXT, wParam, lParam);
        return  TRUE;
 
#ifdef __REACTOS__
    case WM_UPDATEUISTATE:
        if (unicode)
            DefWindowProcW(lphc->self, message, wParam, lParam);
        else
            DefWindowProcA(lphc->self, message, wParam, lParam);
 
        if (COMBO_update_uistate(lphc))
        {
           /* redraw text */
           if( !(lphc->wState & CBF_EDIT) )
                NtUserInvalidateRect(lphc->self, &lphc->textRect, TRUE);
        }
        break;
 
    case WM_CBLOSTTEXTFOCUS: /* undocumented message - deselects the text when focus is lost */
        if (lphc->hWndEdit != NULL)
        {
            SendMessage(lphc->self, WM_LBUTTONUP, 0, 0xFFFFFFFF);
            SendMessage(lphc->hWndEdit, EM_SETSEL, 0, 0);
            lphc->wState &= ~(CBF_FOCUSED | CBF_BEENFOCUSED);
            CB_NOTIFY(lphc, CBN_KILLFOCUS);
        } 
        return TRUE;
 
#endif
 
    default:
        if (message >= WM_USER)
            WARN("unknown msg WM_USER+%04x wp=%04lx lp=%08lx\n",
            message - WM_USER, wParam, lParam );
        break;
      }
      return unicode ? DefWindowProcW(hwnd, message, wParam, lParam) :
                       DefWindowProcA(hwnd, message, wParam, lParam);
}

Referenced by RegisterClientPFN().

GetComboBoxInfo()

BOOL WINAPI GetComboBoxInfo	(	HWND	hwndCombo,
		PCOMBOBOXINFO	pcbi
	)

Definition at line 2313 of file combo.c.

{
    TRACE("(%p, %p)\n", hwndCombo, pcbi);
#ifdef __REACTOS__
    return NtUserGetComboBoxInfo(hwndCombo, pcbi);
#else
    return SendMessageW(hwndCombo, CB_GETCOMBOBOXINFO, 0, (LPARAM)pcbi);
#endif
}

strdupA()

static char * strdupA ( LPCSTR  str )

static

Definition at line 1803 of file combo.c.

{
    char *ret;
    DWORD len;
 
    if(!str) return NULL;
 
    len = strlen(str);
    ret = HeapAlloc(GetProcessHeap(), 0, len + 1);
#ifdef __REACTOS__
    if (ret != NULL)
#endif
        memcpy(ret, str, len + 1);
    return ret;
}

Referenced by ComboWndProc_common().

WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL

(

combo

)

Variable Documentation

CBitHeight

UINT CBitHeight

static

Definition at line 51 of file combo.c.

CBitWidth

UINT CBitWidth

static

Definition at line 51 of file combo.c.

COMBO_builtin_class

const struct builtin_class_descr COMBO_builtin_class

Initial value:

=
{
    comboboxW,            
    CS_PARENTDC | CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW, 
 
 
 
 
    WINPROC_COMBO,        
 
    sizeof(HEADCOMBO *),  
    IDC_ARROW,            
    0                     
}

Definition at line 67 of file combo.c.

comboboxW

const WCHAR comboboxW[] = {'C','o','m','b','o','B','o','x',0}

static

Definition at line 66 of file combo.c.

hComboBmp

HBITMAP hComboBmp = 0

static

Definition at line 50 of file combo.c.