button.c File Reference

#include <user32.h>

Include dependency graph for button.c:

Go to the source code of this file.

Macros
#define	STATE_GWL_OFFSET   0
#define	BUTTON_HFONT_GWL_OFFSET   (sizeof(LONG))
#define	HIMAGE_GWL_OFFSET   (BUTTON_HFONT_GWL_OFFSET+sizeof(HFONT))
#define	BUTTON_UISTATE_GWL_OFFSET   (HIMAGE_GWL_OFFSET+sizeof(HFONT))
#define	NB_EXTRA_BYTES   (BUTTON_UISTATE_GWL_OFFSET+sizeof(LONG_PTR))
#define	BUTTON_NSTATES   0x0F
#define	BUTTON_BTNPRESSED   0x40
#define	BUTTON_UNKNOWN2   0x20
#define	BUTTON_UNKNOWN3   0x10
#define	BUTTON_NOTIFY_PARENT(hWnd, code)
#define	MAX_BTN_TYPE   16

Typedefs
typedef void(*	pfButtonPaint) (HWND hwnd, HDC hdc, UINT action)

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (button)
static UINT	BUTTON_CalcLabelRect (HWND hwnd, HDC hdc, RECT *rc)
static void	PB_Paint (HWND hwnd, HDC hDC, UINT action)
static void	CB_Paint (HWND hwnd, HDC hDC, UINT action)
static void	GB_Paint (HWND hwnd, HDC hDC, UINT action)
static void	UB_Paint (HWND hwnd, HDC hDC, UINT action)
static void	OB_Paint (HWND hwnd, HDC hDC, UINT action)
static void	BUTTON_CheckAutoRadioButton (HWND hwnd)
static LONG	get_button_state (HWND hwnd)
static void	set_button_state (HWND hwnd, LONG state)
static HFONT	get_button_font (HWND hwnd)
static void	set_button_font (HWND hwnd, HFONT font)
static UINT	get_button_type (LONG window_style)
static void	paint_button (HWND hwnd, LONG style, UINT action)
static WCHAR *	get_button_text (HWND hwnd)
LRESULT WINAPI	ButtonWndProc_common (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL unicode)
static UINT	BUTTON_BStoDT (DWORD style, DWORD ex_style)
static BOOL CALLBACK	BUTTON_DrawTextCallback (HDC hdc, LPARAM lp, WPARAM wp, int cx, int cy)
static void	BUTTON_DrawLabel (HWND hwnd, HDC hdc, UINT dtFlags, const RECT *rc)

Variables
static const WORD	maxCheckState [MAX_BTN_TYPE]
static const pfButtonPaint	btnPaintFunc [MAX_BTN_TYPE]
static const WCHAR	buttonW [] = {'B','u','t','t','o','n',0}
const struct builtin_class_descr	BUTTON_builtin_class

Macro Definition Documentation

BUTTON_BTNPRESSED

#define BUTTON_BTNPRESSED   0x40

Definition at line 79 of file button.c.

BUTTON_HFONT_GWL_OFFSET

#define BUTTON_HFONT_GWL_OFFSET   (sizeof(LONG))

Definition at line 72 of file button.c.

BUTTON_NOTIFY_PARENT

#define BUTTON_NOTIFY_PARENT	(		hWnd,
			code
	)

Value:

do { /* Notify parent which has created this button control */ \
        TRACE("notification " #code " sent to hwnd=%p\n", GetParent(hWnd)); \
        SendMessageW(GetParent(hWnd), WM_COMMAND, \
                     MAKEWPARAM(GetWindowLongPtrW((hWnd),GWLP_ID), (code)), \
                     (LPARAM)(hWnd)); \
    } while(0)

Definition at line 86 of file button.c.

BUTTON_NSTATES

#define BUTTON_NSTATES   0x0F

Definition at line 78 of file button.c.

BUTTON_UISTATE_GWL_OFFSET

#define BUTTON_UISTATE_GWL_OFFSET   (HIMAGE_GWL_OFFSET+sizeof(HFONT))

Definition at line 74 of file button.c.

BUTTON_UNKNOWN2

#define BUTTON_UNKNOWN2   0x20

Definition at line 80 of file button.c.

BUTTON_UNKNOWN3

#define BUTTON_UNKNOWN3   0x10

Definition at line 81 of file button.c.

HIMAGE_GWL_OFFSET

#define HIMAGE_GWL_OFFSET   (BUTTON_HFONT_GWL_OFFSET+sizeof(HFONT))

Definition at line 73 of file button.c.

MAX_BTN_TYPE

#define MAX_BTN_TYPE   16

Definition at line 102 of file button.c.

NB_EXTRA_BYTES

#define NB_EXTRA_BYTES   (BUTTON_UISTATE_GWL_OFFSET+sizeof(LONG_PTR))

Definition at line 75 of file button.c.

STATE_GWL_OFFSET

#define STATE_GWL_OFFSET   0

Definition at line 71 of file button.c.

Typedef Documentation

pfButtonPaint

typedef void(* pfButtonPaint) (HWND hwnd, HDC hdc, UINT action)

Definition at line 120 of file button.c.

Function Documentation

BUTTON_BStoDT()

static UINT BUTTON_BStoDT ( DWORD  style, DWORD  ex_style  )

static

Definition at line 694 of file button.c.

{
   UINT dtStyle = DT_NOCLIP;  /* We use SelectClipRgn to limit output */

   /* "Convert" pushlike buttons to pushbuttons */
   if (style & BS_PUSHLIKE)
      style &= ~BS_TYPEMASK;

   if (!(style & BS_MULTILINE))
      dtStyle |= DT_SINGLELINE;
   else
      dtStyle |= DT_WORDBREAK;

   switch (style & BS_CENTER)
   {
      case BS_LEFT:   /* DT_LEFT is 0 */    break;
      case BS_RIGHT:  dtStyle |= DT_RIGHT;  break;
      case BS_CENTER: dtStyle |= DT_CENTER; break;
      default:
         /* Pushbutton's text is centered by default */
         if (get_button_type(style) <= BS_DEFPUSHBUTTON) dtStyle |= DT_CENTER;
         /* all other flavours have left aligned text */
   }

   if (ex_style & WS_EX_RIGHT) dtStyle = DT_RIGHT | (dtStyle & ~(DT_LEFT | DT_CENTER));

   /* DrawText ignores vertical alignment for multiline text,
    * but we use these flags to align label manually.
    */
   if (get_button_type(style) != BS_GROUPBOX)
   {
      switch (style & BS_VCENTER)
      {
         case BS_TOP:     /* DT_TOP is 0 */      break;
         case BS_BOTTOM:  dtStyle |= DT_BOTTOM;  break;
         case BS_VCENTER: /* fall through */
         default:         dtStyle |= DT_VCENTER; break;
      }
   }
   else
      /* GroupBox's text is always single line and is top aligned. */
      dtStyle |= DT_SINGLELINE;

   return dtStyle;
}

Referenced by BUTTON_CalcLabelRect().

BUTTON_CalcLabelRect()

static UINT BUTTON_CalcLabelRect ( HWND  hwnd, HDC  hdc, RECT *  rc  )

static

Definition at line 750 of file button.c.

{
   LONG style = GetWindowLongPtrW( hwnd, GWL_STYLE );
   LONG ex_style = GetWindowLongPtrW( hwnd, GWL_EXSTYLE );
   WCHAR *text;
   ICONINFO    iconInfo;
   BITMAP      bm;
   UINT        dtStyle = BUTTON_BStoDT( style, ex_style );
   RECT        r = *rc;
   INT         n;

   /* Calculate label rectangle according to label type */
   switch (style & (BS_ICON|BS_BITMAP))
   {
      case BS_TEXT:
      {
          HFONT hFont, hPrevFont = 0;

          if (!(text = get_button_text( hwnd ))) goto empty_rect;
          if (!text[0])
          {
              HeapFree( GetProcessHeap(), 0, text );
              goto empty_rect;
          }

          if ((hFont = get_button_font( hwnd ))) hPrevFont = SelectObject( hdc, hFont );
#ifdef __REACTOS__
          DrawTextW(hdc, text, -1, &r, ((dtStyle | DT_CALCRECT) & ~(DT_VCENTER | DT_BOTTOM)));
#else
          DrawTextW(hdc, text, -1, &r, dtStyle | DT_CALCRECT);
#endif
          if (hPrevFont) SelectObject( hdc, hPrevFont );
          HeapFree( GetProcessHeap(), 0, text );
#ifdef __REACTOS__
          if (get_ui_state(hwnd) & UISF_HIDEACCEL)
              dtStyle |= DT_HIDEPREFIX;
#endif
          break;
      }

      case BS_ICON:
         if (!GetIconInfo((HICON)GetWindowLongPtrW( hwnd, HIMAGE_GWL_OFFSET ), &iconInfo))
            goto empty_rect;

         GetObjectW (iconInfo.hbmColor, sizeof(BITMAP), &bm);

         r.right  = r.left + bm.bmWidth;
         r.bottom = r.top  + bm.bmHeight;

         DeleteObject(iconInfo.hbmColor);
         DeleteObject(iconInfo.hbmMask);
         break;

      case BS_BITMAP:
         if (!GetObjectW( (HANDLE)GetWindowLongPtrW( hwnd, HIMAGE_GWL_OFFSET ), sizeof(BITMAP), &bm))
            goto empty_rect;

         r.right  = r.left + bm.bmWidth;
         r.bottom = r.top  + bm.bmHeight;
         break;

      default:
      empty_rect:
         rc->right = r.left;
         rc->bottom = r.top;
         return (UINT)-1;
   }

   /* Position label inside bounding rectangle according to
    * alignment flags. (calculated rect is always left-top aligned).
    * If label is aligned to any side - shift label in opposite
    * direction to leave extra space for focus rectangle.
    */
   switch (dtStyle & (DT_CENTER|DT_RIGHT))
   {
      case DT_LEFT:    r.left++;  r.right++;  break;
      case DT_CENTER:  n = r.right - r.left;
                       r.left   = rc->left + ((rc->right - rc->left) - n) / 2;
                       r.right  = r.left + n; break;
      case DT_RIGHT:   n = r.right - r.left;
                       r.right  = rc->right - 1;
                       r.left   = r.right - n;
                       break;
   }

   switch (dtStyle & (DT_VCENTER|DT_BOTTOM))
   {
      case DT_TOP:     r.top++;  r.bottom++;  break;
      case DT_VCENTER: n = r.bottom - r.top;
#ifdef __REACTOS__
                       r.top    = rc->top + ((rc->bottom - 1 - rc->top) - n) / 2;
#else
                       r.top    = rc->top + ((rc->bottom - rc->top) - n) / 2;
#endif
                       r.bottom = r.top + n;  break;
      case DT_BOTTOM:  n = r.bottom - r.top;
                       r.bottom = rc->bottom - 1;
                       r.top    = r.bottom - n;
                       break;
   }

   *rc = r;
   return dtStyle;
}

Referenced by ButtonWndProc_common(), CB_Paint(), GB_Paint(), and PB_Paint().

BUTTON_CheckAutoRadioButton()

static void BUTTON_CheckAutoRadioButton ( HWND  hwnd )

static

Definition at line 1189 of file button.c.

{
    HWND parent, sibling, start;

    parent = GetParent(hwnd);
    /* make sure that starting control is not disabled or invisible */
    start = sibling = hwnd;
    do
    {
        if (!sibling) break;
        if (SendMessageW( sibling, WM_GETDLGCODE, 0, 0 ) == (DLGC_BUTTON | DLGC_RADIOBUTTON))
            SendMessageW( sibling, BM_SETCHECK, sibling == hwnd ? BST_CHECKED : BST_UNCHECKED, 0 );
        sibling = GetNextDlgGroupItem( parent, sibling, FALSE );
    } while (sibling != start);
}

Referenced by ButtonWndProc_common().

BUTTON_DrawLabel()

static void BUTTON_DrawLabel ( HWND  hwnd, HDC  hdc, UINT  dtFlags, const RECT *  rc  )

static

Definition at line 876 of file button.c.

{
   DRAWSTATEPROC lpOutputProc = NULL;
   LPARAM lp;
   WPARAM wp = 0;
   HBRUSH hbr = 0;
   UINT flags = IsWindowEnabled(hwnd) ? DSS_NORMAL : DSS_DISABLED;
   LONG state = get_button_state( hwnd );
   LONG style = GetWindowLongPtrW( hwnd, GWL_STYLE );
   WCHAR *text = NULL;

   /* FIXME: To draw disabled label in Win31 look-and-feel, we probably
    * must use DSS_MONO flag and COLOR_GRAYTEXT brush (or maybe DSS_UNION).
    * I don't have Win31 on hand to verify that, so I leave it as is.
    */

   if ((style & BS_PUSHLIKE) && (state & BST_INDETERMINATE))
   {
      hbr = GetSysColorBrush(COLOR_GRAYTEXT);
      flags |= DSS_MONO;
   }

   switch (style & (BS_ICON|BS_BITMAP))
   {
      case BS_TEXT:
         /* DST_COMPLEX -- is 0 */
         lpOutputProc = BUTTON_DrawTextCallback;
         if (!(text = get_button_text( hwnd ))) return;
         lp = (LPARAM)text;
         wp = (WPARAM)dtFlags;

#ifdef __REACTOS__
         if (dtFlags & DT_HIDEPREFIX)
             flags |= DSS_HIDEPREFIX;
#endif
         break;

      case BS_ICON:
         flags |= DST_ICON;
         lp = GetWindowLongPtrW( hwnd, HIMAGE_GWL_OFFSET );
         break;

      case BS_BITMAP:
         flags |= DST_BITMAP;
         lp = GetWindowLongPtrW( hwnd, HIMAGE_GWL_OFFSET );
         break;

      default:
         return;
   }

   DrawStateW(hdc, hbr, lpOutputProc, lp, wp, rc->left, rc->top,
              rc->right - rc->left, rc->bottom - rc->top, flags);
   HeapFree( GetProcessHeap(), 0, text );
}

Referenced by CB_Paint(), GB_Paint(), and PB_Paint().

BUTTON_DrawTextCallback()

static BOOL CALLBACK BUTTON_DrawTextCallback ( HDC  hdc, LPARAM  lp, WPARAM  wp, int  cx, int  cy  )

static

Definition at line 861 of file button.c.

{
   RECT rc;

   SetRect(&rc, 0, 0, cx, cy);
   DrawTextW(hdc, (LPCWSTR)lp, -1, &rc, (UINT)wp);
   return TRUE;
}

Referenced by BUTTON_DrawLabel().

ButtonWndProc_common()

LRESULT WINAPI ButtonWndProc_common	(	HWND	hWnd,
		UINT	uMsg,
		WPARAM	wParam,
		LPARAM	lParam,
		BOOL	unicode
	)

Definition at line 243 of file button.c.

{
    RECT rect;
    POINT pt;
    LONG style = GetWindowLongPtrW( hWnd, GWL_STYLE );
    UINT btn_type = get_button_type( style );
    LONG state;
    HANDLE oldHbitmap;
#ifdef __REACTOS__
    PWND pWnd;

    pWnd = ValidateHwnd(hWnd);
    if (pWnd)
    {
       if (!pWnd->fnid)
       {
          NtUserSetWindowFNID(hWnd, FNID_BUTTON);
       }
       else
       {
          if (pWnd->fnid != FNID_BUTTON)
          {
             ERR("Wrong window class for Button! fnId 0x%x\n",pWnd->fnid);
             return 0;
          }
       }
    }
    else
       return 0;
#else
    if (!IsWindow( hWnd )) return 0;
#endif

    pt.x = (short)LOWORD(lParam);
    pt.y = (short)HIWORD(lParam);

    switch (uMsg)
    {
    case WM_GETDLGCODE:
        switch(btn_type)
        {
        case BS_USERBUTTON:
        case BS_PUSHBUTTON:      return DLGC_BUTTON | DLGC_UNDEFPUSHBUTTON;
        case BS_DEFPUSHBUTTON:   return DLGC_BUTTON | DLGC_DEFPUSHBUTTON;
        case BS_RADIOBUTTON:
        case BS_AUTORADIOBUTTON: return DLGC_BUTTON | DLGC_RADIOBUTTON;
        case BS_GROUPBOX:        return DLGC_STATIC;
        default:                 return DLGC_BUTTON;
        }

    case WM_ENABLE:
        paint_button( hWnd, btn_type, ODA_DRAWENTIRE );
        break;

    case WM_CREATE:
        if (btn_type >= MAX_BTN_TYPE)
            return -1; /* abort */

        /* XP turns a BS_USERBUTTON into BS_PUSHBUTTON */
        if (btn_type == BS_USERBUTTON )
        {
            style = (style & ~BS_TYPEMASK) | BS_PUSHBUTTON;
#ifdef __REACTOS__
            NtUserAlterWindowStyle(hWnd, GWL_STYLE, style );
#else
            WIN_SetStyle( hWnd, style, BS_TYPEMASK & ~style );
#endif
        }
        set_button_state( hWnd, BST_UNCHECKED );
#ifdef __REACTOS__
        button_update_uistate( hWnd, unicode );
#endif
        return 0;

#ifdef __REACTOS__
    case WM_NCDESTROY:
        NtUserSetWindowFNID(hWnd, FNID_DESTROY);
    case WM_DESTROY:
        break;
#endif

    case WM_ERASEBKGND:
        if (btn_type == BS_OWNERDRAW)
        {
            HDC hdc = (HDC)wParam;
            RECT rc;
            HBRUSH hBrush;
            HWND parent = GetParent(hWnd);
            if (!parent) parent = hWnd;
#ifdef __REACTOS__
            hBrush = GetControlColor( parent, hWnd, hdc, WM_CTLCOLORBTN);
#else
            hBrush = (HBRUSH)SendMessageW(parent, WM_CTLCOLORBTN, (WPARAM)hdc, (LPARAM)hWnd);
            if (!hBrush) /* did the app forget to call defwindowproc ? */
                hBrush = (HBRUSH)DefWindowProcW(parent, WM_CTLCOLORBTN,
                                                (WPARAM)hdc, (LPARAM)hWnd);
#endif
            GetClientRect(hWnd, &rc);
            FillRect(hdc, &rc, hBrush);
        }
        return 1;

    case WM_PRINTCLIENT:
    case WM_PAINT:
    {
        PAINTSTRUCT ps;
        HDC hdc = wParam ? (HDC)wParam : BeginPaint( hWnd, &ps );
        if (btnPaintFunc[btn_type])
        {
            int nOldMode = SetBkMode( hdc, OPAQUE );
            (btnPaintFunc[btn_type])( hWnd, hdc, ODA_DRAWENTIRE );
            SetBkMode(hdc, nOldMode); /*  reset painting mode */
        }
        if ( !wParam ) EndPaint( hWnd, &ps );
        break;
    }

    case WM_KEYDOWN:
    if (wParam == VK_SPACE)
    {
        SendMessageW( hWnd, BM_SETSTATE, TRUE, 0 );
            set_button_state( hWnd, get_button_state( hWnd ) | BUTTON_BTNPRESSED );
            SetCapture( hWnd );
    }
    break;

    case WM_LBUTTONDBLCLK:
        if(style & BS_NOTIFY ||
           btn_type == BS_RADIOBUTTON ||
           btn_type == BS_USERBUTTON ||
           btn_type == BS_OWNERDRAW)
        {
            BUTTON_NOTIFY_PARENT(hWnd, BN_DOUBLECLICKED);
            break;
        }
        /* fall through */
    case WM_LBUTTONDOWN:
        SetCapture( hWnd );
        SetFocus( hWnd );
        set_button_state( hWnd, get_button_state( hWnd ) | BUTTON_BTNPRESSED );
        SendMessageW( hWnd, BM_SETSTATE, TRUE, 0 );
        break;

    case WM_KEYUP:
    if (wParam != VK_SPACE)
        break;
    /* fall through */
    case WM_LBUTTONUP:
#ifdef __REACTOS__
    {
        BOOL TellParent = FALSE; 
#endif
        state = get_button_state( hWnd );
        if (!(state & BUTTON_BTNPRESSED)) break;
        state &= BUTTON_NSTATES;
        set_button_state( hWnd, state );
        if (!(state & BST_PUSHED))
        {
            ReleaseCapture();
            break;
        }
        SendMessageW( hWnd, BM_SETSTATE, FALSE, 0 );
        GetClientRect( hWnd, &rect );
    if (uMsg == WM_KEYUP || PtInRect( &rect, pt ))
        {
            state = get_button_state( hWnd );
            switch(btn_type)
            {
            case BS_AUTOCHECKBOX:
                SendMessageW( hWnd, BM_SETCHECK, !(state & BST_CHECKED), 0 );
                break;
            case BS_AUTORADIOBUTTON:
                BUTTON_CheckAutoRadioButton( hWnd );
                break;
            case BS_AUTO3STATE:
                SendMessageW( hWnd, BM_SETCHECK,
                                (state & BST_INDETERMINATE) ? 0 : ((state & 3) + 1), 0 );
                break;
            }
#ifdef __REACTOS__
            TellParent = TRUE; // <---- Fix CORE-10194, Notify parent after capture is released.
#else
            ReleaseCapture();
            BUTTON_NOTIFY_PARENT(hWnd, BN_CLICKED);
#endif
        }
#ifndef __REACTOS__
        else
        {
            ReleaseCapture();
        }
#else
        ReleaseCapture();
        if (TellParent) BUTTON_NOTIFY_PARENT(hWnd, BN_CLICKED);
    }
#endif
        break;

    case WM_CAPTURECHANGED:
        TRACE("WM_CAPTURECHANGED %p\n", hWnd);
        if (hWnd == (HWND)lParam) break;
        state = get_button_state( hWnd );
        if (state & BUTTON_BTNPRESSED)
        {
            state &= BUTTON_NSTATES;
            set_button_state( hWnd, state );
            if (state & BST_PUSHED) SendMessageW( hWnd, BM_SETSTATE, FALSE, 0 );
        }
        break;

    case WM_MOUSEMOVE:
        if ((wParam & MK_LBUTTON) && GetCapture() == hWnd)
        {
            GetClientRect( hWnd, &rect );
            SendMessageW( hWnd, BM_SETSTATE, PtInRect(&rect, pt), 0 );
        }
        break;

    case WM_SETTEXT:
    {
        /* Clear an old text here as Windows does */
//
// ReactOS Note :
// wine Bug: http://bugs.winehq.org/show_bug.cgi?id=25790
// Patch: http://source.winehq.org/patches/data/70889
// By: Alexander LAW, Replicate Windows behavior of WM_SETTEXT handler regarding WM_CTLCOLOR*
//
#ifdef __REACTOS__
        if (style & WS_VISIBLE)
#else
        if (IsWindowVisible(hWnd))
#endif
        {
            HDC hdc = GetDC(hWnd);
            HBRUSH hbrush;
            RECT client, rc;
            HWND parent = GetParent(hWnd);
            UINT message = (btn_type == BS_PUSHBUTTON ||
                            btn_type == BS_DEFPUSHBUTTON ||
                            btn_type == BS_PUSHLIKE ||
                            btn_type == BS_USERBUTTON ||
                            btn_type == BS_OWNERDRAW) ?
                            WM_CTLCOLORBTN : WM_CTLCOLORSTATIC;

            if (!parent) parent = hWnd;
#ifdef __REACTOS__
            hbrush = GetControlColor(parent, hWnd, hdc, message);
#else
            hbrush = (HBRUSH)SendMessageW(parent, message,
                                          (WPARAM)hdc, (LPARAM)hWnd);
            if (!hbrush) /* did the app forget to call DefWindowProc ? */
                hbrush = (HBRUSH)DefWindowProcW(parent, message,
                                                (WPARAM)hdc, (LPARAM)hWnd);
#endif

            GetClientRect(hWnd, &client);
            rc = client;
            /* FIXME: check other BS_* handlers */
            if (btn_type == BS_GROUPBOX)
                InflateRect(&rc, -7, 1); /* GB_Paint does this */
            BUTTON_CalcLabelRect(hWnd, hdc, &rc);
            /* Clip by client rect bounds */
            if (rc.right > client.right) rc.right = client.right;
            if (rc.bottom > client.bottom) rc.bottom = client.bottom;
            FillRect(hdc, &rc, hbrush);
            ReleaseDC(hWnd, hdc);
        }

        if (unicode) DefWindowProcW( hWnd, WM_SETTEXT, wParam, lParam );
        else DefWindowProcA( hWnd, WM_SETTEXT, wParam, lParam );
        if (btn_type == BS_GROUPBOX) /* Yes, only for BS_GROUPBOX */
            InvalidateRect( hWnd, NULL, TRUE );
        else
            paint_button( hWnd, btn_type, ODA_DRAWENTIRE );
        return 1; /* success. FIXME: check text length */
    }

    case WM_SETFONT:
        set_button_font( hWnd, (HFONT)wParam );
        if (lParam) InvalidateRect(hWnd, NULL, TRUE);
        break;

    case WM_GETFONT:
        return (LRESULT)get_button_font( hWnd );

    case WM_SETFOCUS:
        TRACE("WM_SETFOCUS %p\n",hWnd);
        set_button_state( hWnd, get_button_state(hWnd) | BST_FOCUS );
        paint_button( hWnd, btn_type, ODA_FOCUS );
        if (style & BS_NOTIFY)
            BUTTON_NOTIFY_PARENT(hWnd, BN_SETFOCUS);
        break;

    case WM_KILLFOCUS:
        TRACE("WM_KILLFOCUS %p\n",hWnd);
        state = get_button_state( hWnd );
        set_button_state( hWnd, state & ~BST_FOCUS );
    paint_button( hWnd, btn_type, ODA_FOCUS );

        if ((state & BUTTON_BTNPRESSED) && GetCapture() == hWnd)
            ReleaseCapture();
        if (style & BS_NOTIFY)
            BUTTON_NOTIFY_PARENT(hWnd, BN_KILLFOCUS);

        InvalidateRect( hWnd, NULL, FALSE );
        break;

    case WM_SYSCOLORCHANGE:
        InvalidateRect( hWnd, NULL, FALSE );
        break;

    case BM_SETSTYLE:
        btn_type = wParam & BS_TYPEMASK;
        style = (style & ~BS_TYPEMASK) | btn_type;
#ifdef __REACTOS__
        NtUserAlterWindowStyle(hWnd, GWL_STYLE, style);
#else
        WIN_SetStyle( hWnd, style, BS_TYPEMASK & ~style );
#endif

        /* Only redraw if lParam flag is set.*/
        if (lParam)
            InvalidateRect( hWnd, NULL, TRUE );

        break;

    case BM_CLICK:
#ifdef __REACTOS__
        state = get_button_state(hWnd);
        if (state & BUTTON_BMCLICK)
           break;
        set_button_state(hWnd, state | BUTTON_BMCLICK); // Tracked in STATE_GWL_OFFSET.
#endif
    SendMessageW( hWnd, WM_LBUTTONDOWN, 0, 0 );
    SendMessageW( hWnd, WM_LBUTTONUP, 0, 0 );
#ifdef __REACTOS__
        state = get_button_state(hWnd);
        if (!(state & BUTTON_BMCLICK)) break;
        state &= ~BUTTON_BMCLICK;
        set_button_state(hWnd, state);
#endif
    break;

    case BM_SETIMAGE:
        /* Check that image format matches button style */
        switch (style & (BS_BITMAP|BS_ICON))
        {
        case BS_BITMAP:
            if (wParam != IMAGE_BITMAP) return 0;
            break;
        case BS_ICON:
            if (wParam != IMAGE_ICON) return 0;
            break;
        default:
            return 0;
        }
        oldHbitmap = (HBITMAP)SetWindowLongPtrW( hWnd, HIMAGE_GWL_OFFSET, lParam );
    InvalidateRect( hWnd, NULL, FALSE );
    return (LRESULT)oldHbitmap;

    case BM_GETIMAGE:
        return GetWindowLongPtrW( hWnd, HIMAGE_GWL_OFFSET );

    case BM_GETCHECK:
        return get_button_state( hWnd ) & 3;

    case BM_SETCHECK:
        if (wParam > maxCheckState[btn_type]) wParam = maxCheckState[btn_type];
        state = get_button_state( hWnd );
        if ((btn_type == BS_RADIOBUTTON) || (btn_type == BS_AUTORADIOBUTTON))
        {
#ifdef __REACTOS__
            if (wParam) style |= WS_TABSTOP;
            else style &= ~WS_TABSTOP;
            NtUserAlterWindowStyle(hWnd, GWL_STYLE, style);
#else
            if (wParam) WIN_SetStyle( hWnd, WS_TABSTOP, 0 );
            else WIN_SetStyle( hWnd, 0, WS_TABSTOP );
#endif
        }
        if ((state & 3) != wParam)
        {
            set_button_state( hWnd, (state & ~3) | wParam );
            paint_button( hWnd, btn_type, ODA_SELECT );
        }
        break;

    case BM_GETSTATE:
        return get_button_state( hWnd );

    case BM_SETSTATE:
        state = get_button_state( hWnd );
        if (wParam)
            set_button_state( hWnd, state | BST_PUSHED );
        else
            set_button_state( hWnd, state & ~BST_PUSHED );

        paint_button( hWnd, btn_type, ODA_SELECT );
        break;

#ifdef __REACTOS__
    case WM_UPDATEUISTATE:
        if (unicode)
            DefWindowProcW(hWnd, uMsg, wParam, lParam);
        else
            DefWindowProcA(hWnd, uMsg, wParam, lParam);

        if (button_update_uistate(hWnd, unicode))
            paint_button( hWnd, btn_type, ODA_DRAWENTIRE );
        break;
#endif

    case WM_NCHITTEST:
        if(btn_type == BS_GROUPBOX) return HTTRANSPARENT;
        /* fall through */
    default:
        return unicode ? DefWindowProcW(hWnd, uMsg, wParam, lParam) :
                         DefWindowProcA(hWnd, uMsg, wParam, lParam);
    }
    return 0;
}

Referenced by RegisterClientPFN().

CB_Paint()

static void CB_Paint ( HWND  hwnd, HDC  hDC, UINT  action  )

static

Definition at line 1041 of file button.c.

{
    RECT rbox, rtext, client;
    HBRUSH hBrush;
    int delta, text_offset, checkBoxWidth, checkBoxHeight;
    UINT dtFlags;
    HFONT hFont;
    LONG state = get_button_state( hwnd );
    LONG style = GetWindowLongPtrW( hwnd, GWL_STYLE );
    LONG ex_style = GetWindowLongW( hwnd, GWL_EXSTYLE );
    HWND parent;
    HRGN hrgn;

    if (style & BS_PUSHLIKE)
    {
        PB_Paint( hwnd, hDC, action );
    return;
    }

    GetClientRect(hwnd, &client);
    rbox = rtext = client;

    checkBoxWidth  = 12 * GetDeviceCaps( hDC, LOGPIXELSX ) / 96 + 1;
    checkBoxHeight = 12 * GetDeviceCaps( hDC, LOGPIXELSY ) / 96 + 1;

    if ((hFont = get_button_font( hwnd ))) SelectObject( hDC, hFont );
    GetCharWidthW( hDC, '0', '0', &text_offset );
    text_offset /= 2;

    parent = GetParent(hwnd);
    if (!parent) parent = hwnd;
#ifdef __REACTOS__
    hBrush = GetControlColor(parent, hwnd, hDC, WM_CTLCOLORSTATIC);
#else
    hBrush = (HBRUSH)SendMessageW(parent, WM_CTLCOLORSTATIC,
                  (WPARAM)hDC, (LPARAM)hwnd);
    if (!hBrush) /* did the app forget to call defwindowproc ? */
        hBrush = (HBRUSH)DefWindowProcW(parent, WM_CTLCOLORSTATIC,
                    (WPARAM)hDC, (LPARAM)hwnd );
#endif
    hrgn = set_control_clipping( hDC, &client );

    if (style & BS_LEFTTEXT || ex_style & WS_EX_RIGHT)
    {
    /* magic +4 is what CTL3D expects */

        rtext.right -= checkBoxWidth + text_offset;;
        rbox.left = rbox.right - checkBoxWidth;
    }
    else
    {
        rtext.left += checkBoxWidth + text_offset;;
        rbox.right = checkBoxWidth;
    }

    /* Since WM_ERASEBKGND does nothing, first prepare background */
    if (action == ODA_SELECT) FillRect( hDC, &rbox, hBrush );
    if (action == ODA_DRAWENTIRE) FillRect( hDC, &client, hBrush );

    /* Draw label */
    client = rtext;
    dtFlags = BUTTON_CalcLabelRect(hwnd, hDC, &rtext);
    
    /* Only adjust rbox when rtext is valid */
    if (dtFlags != (UINT)-1L)
    {
    rbox.top = rtext.top;
    rbox.bottom = rtext.bottom;
    }

    /* Draw the check-box bitmap */
    if (action == ODA_DRAWENTIRE || action == ODA_SELECT)
    {
    UINT flags;

    if ((get_button_type(style) == BS_RADIOBUTTON) ||
        (get_button_type(style) == BS_AUTORADIOBUTTON)) flags = DFCS_BUTTONRADIO;
    else if (state & BST_INDETERMINATE) flags = DFCS_BUTTON3STATE;
    else flags = DFCS_BUTTONCHECK;

    if (state & (BST_CHECKED | BST_INDETERMINATE)) flags |= DFCS_CHECKED;
    if (state & BST_PUSHED) flags |= DFCS_PUSHED;

    if (style & WS_DISABLED) flags |= DFCS_INACTIVE;

    /* rbox must have the correct height */
    delta = rbox.bottom - rbox.top - checkBoxHeight;
    
    if (style & BS_TOP) {
        if (delta > 0) {
        rbox.bottom = rbox.top + checkBoxHeight;
        } else { 
        rbox.top -= -delta/2 + 1;
        rbox.bottom = rbox.top + checkBoxHeight;
        }
    } else if (style & BS_BOTTOM) {
        if (delta > 0) {
        rbox.top = rbox.bottom - checkBoxHeight;
        } else {
        rbox.bottom += -delta/2 + 1;
        rbox.top = rbox.bottom - checkBoxHeight;
        }
    } else { /* Default */
        if (delta > 0) {
        int ofs = (delta / 2);
        rbox.bottom -= ofs + 1;
        rbox.top = rbox.bottom - checkBoxHeight;
        } else if (delta < 0) {
        int ofs = (-delta / 2);
        rbox.top -= ofs + 1;
        rbox.bottom = rbox.top + checkBoxHeight;
        }
    }

    DrawFrameControl( hDC, &rbox, DFC_BUTTON, flags );
    }

    if (dtFlags == (UINT)-1L) /* Noting to draw */
    return;

    if (action == ODA_DRAWENTIRE)
    BUTTON_DrawLabel(hwnd, hDC, dtFlags, &rtext);

    /* ... and focus */
    if (action == ODA_FOCUS || (state & BST_FOCUS))
    {
#ifdef __REACTOS__
        if (!(get_ui_state(hwnd) & UISF_HIDEFOCUS))
        {
#endif
            rtext.left--;
            rtext.right++;
            IntersectRect(&rtext, &rtext, &client);
            DrawFocusRect( hDC, &rtext );
#ifdef __REACTOS__
        }
#endif
    }
    SelectClipRgn( hDC, hrgn );
    if (hrgn) DeleteObject( hrgn );
}

GB_Paint()

static void GB_Paint ( HWND  hwnd, HDC  hDC, UINT  action  )

static

Definition at line 1210 of file button.c.

{
    RECT rc, rcFrame;
    HBRUSH hbr;
    HFONT hFont;
    UINT dtFlags;
    TEXTMETRICW tm;
    LONG style = GetWindowLongPtrW( hwnd, GWL_STYLE );
    HWND parent;
    HRGN hrgn;

    if ((hFont = get_button_font( hwnd ))) SelectObject( hDC, hFont );
    /* GroupBox acts like static control, so it sends CTLCOLORSTATIC */
    parent = GetParent(hwnd);
    if (!parent) parent = hwnd;
#ifdef __REACTOS__
    hbr = GetControlColor(parent, hwnd, hDC, WM_CTLCOLORSTATIC);
#else
    hbr = (HBRUSH)SendMessageW(parent, WM_CTLCOLORSTATIC, (WPARAM)hDC, (LPARAM)hwnd);
    if (!hbr) /* did the app forget to call defwindowproc ? */
        hbr = (HBRUSH)DefWindowProcW(parent, WM_CTLCOLORSTATIC,
                     (WPARAM)hDC, (LPARAM)hwnd);
#endif
    GetClientRect( hwnd, &rc);
    rcFrame = rc;
    hrgn = set_control_clipping( hDC, &rc );

    GetTextMetricsW (hDC, &tm);
    rcFrame.top += (tm.tmHeight / 2) - 1;
    DrawEdge (hDC, &rcFrame, EDGE_ETCHED, BF_RECT | ((style & BS_FLAT) ? BF_FLAT : 0));

    InflateRect(&rc, -7, 1);
    dtFlags = BUTTON_CalcLabelRect(hwnd, hDC, &rc);

    if (dtFlags != (UINT)-1L)
    {
        /* Because buttons have CS_PARENTDC class style, there is a chance
         * that label will be drawn out of client rect.
         * But Windows doesn't clip label's rect, so do I.
         */

        /* There is 1-pixel margin at the left, right, and bottom */
        rc.left--; rc.right++; rc.bottom++;
        FillRect(hDC, &rc, hbr);
        rc.left++; rc.right--; rc.bottom--;

        BUTTON_DrawLabel(hwnd, hDC, dtFlags, &rc);
    }
    SelectClipRgn( hDC, hrgn );
    if (hrgn) DeleteObject( hrgn );
}

get_button_font()

static HFONT get_button_font ( HWND  hwnd )

inlinestatic

Definition at line 182 of file button.c.

{
    return (HFONT)GetWindowLongPtrW( hwnd, BUTTON_HFONT_GWL_OFFSET );
}

Referenced by BUTTON_CalcLabelRect(), ButtonWndProc_common(), CB_Paint(), GB_Paint(), OB_Paint(), PB_Paint(), and UB_Paint().

get_button_state()

static LONG get_button_state ( HWND  hwnd )

inlinestatic

Definition at line 158 of file button.c.

{
    return GetWindowLongPtrW( hwnd, STATE_GWL_OFFSET );
}

Referenced by BUTTON_DrawLabel(), ButtonWndProc_common(), CB_Paint(), OB_Paint(), PB_Paint(), and UB_Paint().

get_button_text()

static WCHAR* get_button_text ( HWND  hwnd )

inlinestatic

Definition at line 209 of file button.c.

{
    INT len = 512;
    WCHAR *buffer = HeapAlloc( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) );
    if (buffer) InternalGetWindowText( hwnd, buffer, len + 1 );
    return buffer;
}

Referenced by BUTTON_CalcLabelRect(), and BUTTON_DrawLabel().

get_button_type()

static UINT get_button_type ( LONG  window_style )

inlinestatic

Definition at line 192 of file button.c.

{
    return (window_style & BS_TYPEMASK);
}

Referenced by BUTTON_BStoDT(), ButtonWndProc_common(), CB_Paint(), and PB_Paint().

OB_Paint()

static void OB_Paint ( HWND  hwnd, HDC  hDC, UINT  action  )

static

Definition at line 1322 of file button.c.

{
    LONG state = get_button_state( hwnd );
    DRAWITEMSTRUCT dis;
    LONG_PTR id = GetWindowLongPtrW( hwnd, GWLP_ID );
    HWND parent;
    HFONT hFont, hPrevFont = 0;
    HRGN hrgn;

    dis.CtlType    = ODT_BUTTON;
    dis.CtlID      = id;
    dis.itemID     = 0;
    dis.itemAction = action;
    dis.itemState  = ((state & BST_FOCUS) ? ODS_FOCUS : 0) |
                     ((state & BST_PUSHED) ? ODS_SELECTED : 0) |
                     (IsWindowEnabled(hwnd) ? 0: ODS_DISABLED);
    dis.hwndItem   = hwnd;
    dis.hDC        = hDC;
    dis.itemData   = 0;
    GetClientRect( hwnd, &dis.rcItem );

    if ((hFont = get_button_font( hwnd ))) hPrevFont = SelectObject( hDC, hFont );
    parent = GetParent(hwnd);
    if (!parent) parent = hwnd;
#ifdef __REACTOS__
    GetControlColor( parent, hwnd, hDC, WM_CTLCOLORBTN);
#else
    SendMessageW( parent, WM_CTLCOLORBTN, (WPARAM)hDC, (LPARAM)hwnd );
#endif

    hrgn = set_control_clipping( hDC, &dis.rcItem );

    SendMessageW( GetParent(hwnd), WM_DRAWITEM, id, (LPARAM)&dis );
    if (hPrevFont) SelectObject(hDC, hPrevFont);
    SelectClipRgn( hDC, hrgn );
    if (hrgn) DeleteObject( hrgn );
}

paint_button()

static void paint_button ( HWND  hwnd, LONG  style, UINT  action  )

inlinestatic

Definition at line 198 of file button.c.

{
    if (btnPaintFunc[style] && IsWindowVisible(hwnd))
    {
        HDC hdc = GetDC( hwnd );
        btnPaintFunc[style]( hwnd, hdc, action );
        ReleaseDC( hwnd, hdc );
    }
}

Referenced by ButtonWndProc_common().

PB_Paint()

static void PB_Paint ( HWND  hwnd, HDC  hDC, UINT  action  )

static

Definition at line 935 of file button.c.

{
    RECT     rc, r;
    UINT     dtFlags, uState;
    HPEN     hOldPen;
    HBRUSH   hOldBrush;
    INT      oldBkMode;
    COLORREF oldTxtColor;
    HFONT hFont;
    LONG state = get_button_state( hwnd );
    LONG style = GetWindowLongPtrW( hwnd, GWL_STYLE );
    BOOL pushedState = (state & BST_PUSHED);
    HWND parent;
    HRGN hrgn;

    GetClientRect( hwnd, &rc );

    /* Send WM_CTLCOLOR to allow changing the font (the colors are fixed) */
    if ((hFont = get_button_font( hwnd ))) SelectObject( hDC, hFont );
    parent = GetParent(hwnd);
    if (!parent) parent = hwnd;
#ifdef __REACTOS__
    GetControlColor( parent, hwnd, hDC, WM_CTLCOLORBTN);
#else
    SendMessageW( parent, WM_CTLCOLORBTN, (WPARAM)hDC, (LPARAM)hwnd );
#endif

    hrgn = set_control_clipping( hDC, &rc );
#ifdef __REACTOS__
    hOldPen = SelectObject(hDC, GetStockObject(DC_PEN));
    SetDCPenColor(hDC, GetSysColor(COLOR_WINDOWFRAME));
#else
    hOldPen = SelectObject(hDC, SYSCOLOR_GetPen(COLOR_WINDOWFRAME));
#endif
    hOldBrush = SelectObject(hDC,GetSysColorBrush(COLOR_BTNFACE));
    oldBkMode = SetBkMode(hDC, TRANSPARENT);

    if (get_button_type(style) == BS_DEFPUSHBUTTON)
    {
        if (action != ODA_FOCUS)
            Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom);
    InflateRect( &rc, -1, -1 );
    }

    /* completely skip the drawing if only focus has changed */
    if (action == ODA_FOCUS) goto draw_focus;

    uState = DFCS_BUTTONPUSH;

    if (style & BS_FLAT)
        uState |= DFCS_MONO;
    else if (pushedState)
    {
    if (get_button_type(style) == BS_DEFPUSHBUTTON )
        uState |= DFCS_FLAT;
    else
        uState |= DFCS_PUSHED;
    }

    if (state & (BST_CHECKED | BST_INDETERMINATE))
        uState |= DFCS_CHECKED;

    DrawFrameControl( hDC, &rc, DFC_BUTTON, uState );

    /* draw button label */
    r = rc;
    dtFlags = BUTTON_CalcLabelRect(hwnd, hDC, &r);

    if (dtFlags == (UINT)-1L)
       goto cleanup;

    if (pushedState)
       OffsetRect(&r, 1, 1);

    oldTxtColor = SetTextColor( hDC, GetSysColor(COLOR_BTNTEXT) );

    BUTTON_DrawLabel(hwnd, hDC, dtFlags, &r);

    SetTextColor( hDC, oldTxtColor );

draw_focus:
    if (action == ODA_FOCUS || (state & BST_FOCUS))
    {
#ifdef __REACTOS__
        if (!(get_ui_state(hwnd) & UISF_HIDEFOCUS))
        {
#endif
            InflateRect( &rc, -2, -2 );
            DrawFocusRect( hDC, &rc );
#ifdef __REACTOS__
        }
#endif
    }

 cleanup:
    SelectObject( hDC, hOldPen );
    SelectObject( hDC, hOldBrush );
    SetBkMode(hDC, oldBkMode);
    SelectClipRgn( hDC, hrgn );
    if (hrgn) DeleteObject( hrgn );
}

Referenced by CB_Paint().

set_button_font()

static void set_button_font ( HWND  hwnd, HFONT  font  )

inlinestatic

Definition at line 187 of file button.c.

{
    SetWindowLongPtrW( hwnd, BUTTON_HFONT_GWL_OFFSET, (LONG_PTR)font );
}

Referenced by ButtonWndProc_common().

set_button_state()

static void set_button_state ( HWND  hwnd, LONG  state  )

inlinestatic

Definition at line 163 of file button.c.

{
    SetWindowLongPtrW( hwnd, STATE_GWL_OFFSET, state );
}

Referenced by ButtonWndProc_common().

UB_Paint()

static void UB_Paint ( HWND  hwnd, HDC  hDC, UINT  action  )

static

Definition at line 1267 of file button.c.

{
    RECT rc;
    HBRUSH hBrush;
    HFONT hFont;
    LONG state = get_button_state( hwnd );
    HWND parent;

    GetClientRect( hwnd, &rc);

    if ((hFont = get_button_font( hwnd ))) SelectObject( hDC, hFont );

    parent = GetParent(hwnd);
    if (!parent) parent = hwnd;
#ifdef __REACTOS__
    hBrush = GetControlColor( parent, hwnd, hDC, WM_CTLCOLORBTN);
#else
    hBrush = (HBRUSH)SendMessageW(parent, WM_CTLCOLORBTN, (WPARAM)hDC, (LPARAM)hwnd);
    if (!hBrush) /* did the app forget to call defwindowproc ? */
        hBrush = (HBRUSH)DefWindowProcW(parent, WM_CTLCOLORBTN,
                    (WPARAM)hDC, (LPARAM)hwnd);
#endif

    FillRect( hDC, &rc, hBrush );
    if (action == ODA_FOCUS || (state & BST_FOCUS))
#ifdef __REACTOS__
    {
        if (!(get_ui_state(hwnd) & UISF_HIDEFOCUS))
#endif
            DrawFocusRect( hDC, &rc );
#ifdef __REACTOS__
    }
#endif

    switch (action)
    {
    case ODA_FOCUS:
        BUTTON_NOTIFY_PARENT( hwnd, (state & BST_FOCUS) ? BN_SETFOCUS : BN_KILLFOCUS );
        break;

    case ODA_SELECT:
        BUTTON_NOTIFY_PARENT( hwnd, (state & BST_PUSHED) ? BN_HILITE : BN_UNHILITE );
        break;

    default:
        BUTTON_NOTIFY_PARENT( hwnd, BN_PAINT );
        break;
    }
}

WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL

(

button

)

Variable Documentation

btnPaintFunc

const pfButtonPaint btnPaintFunc[MAX_BTN_TYPE]

static

Initial value:

=
{
    PB_Paint,    
    PB_Paint,    
    CB_Paint,    
    CB_Paint,    
    CB_Paint,    
    CB_Paint,    
    CB_Paint,    
    GB_Paint,    
    UB_Paint,    
    CB_Paint,    
    NULL,        
    OB_Paint     
}

Definition at line 122 of file button.c.

Referenced by ButtonWndProc_common(), and paint_button().

BUTTON_builtin_class

const struct builtin_class_descr BUTTON_builtin_class

Initial value:

=
{
    buttonW,             
    CS_DBLCLKS | CS_VREDRAW | CS_HREDRAW | CS_PARENTDC, 




    WINPROC_BUTTON,      

    NB_EXTRA_BYTES,      
    IDC_ARROW,           
    0                    
}

Definition at line 142 of file button.c.

buttonW

const WCHAR buttonW[] = {'B','u','t','t','o','n',0}

static

Definition at line 141 of file button.c.

maxCheckState

const WORD maxCheckState[MAX_BTN_TYPE]

static

Initial value:

=
{
    BST_UNCHECKED,      
    BST_UNCHECKED,      
    BST_CHECKED,        
    BST_CHECKED,        
    BST_CHECKED,        
    BST_INDETERMINATE,  
    BST_INDETERMINATE,  
    BST_UNCHECKED,      
    BST_UNCHECKED,      
    BST_CHECKED,        
    BST_UNCHECKED,      
    BST_UNCHECKED       
}

Definition at line 104 of file button.c.

Referenced by ButtonWndProc_common().