static.c

winNT技术操作系统,国外开放的原代码和LIUX一样

/*
 * Static control
 *
 * Copyright  David W. Metcalfe, 1993
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * NOTES
 *
 * This code was audited for completeness against the documented features
 * of Comctl32.dll version 6.0 on Oct. 4, 2004, by Dimitrie O. Paun.
 * 
 * Unless otherwise noted, we believe this code to be complete, as per
 * the specification mentioned above.
 * If you discover missing features, or bugs, please note them below.
 *
 * Notes:
 *   - Windows XP introduced new behavior: The background of centered
 *     icons and bitmaps is painted differently. This is only done if
 *     a manifest is present.
 *     Because it has not yet been decided how to implement the two
 *     different modes in Wine, only the Windows XP mode is implemented.
 *   - Controls with SS_SIMPLE but without SS_NOPREFIX:
 *     The text should not be changed. Windows doesn't clear the
 *     client rectangle, so the new text must be larger than the old one.
 *   - The SS_RIGHTJUST style is currently not implemented by Windows
 *     (or it does something different than documented).
 *
 * TODO:
 *   - Animated cursors
 */

#include <user32.h>

#include <wine/debug.h>

WINE_DEFAULT_DEBUG_CHANNEL(static);

static void STATIC_PaintOwnerDrawfn( HWND hwnd, HDC hdc, DWORD style );
static void STATIC_PaintTextfn( HWND hwnd, HDC hdc, DWORD style );
static void STATIC_PaintRectfn( HWND hwnd, HDC hdc, DWORD style );
static void STATIC_PaintIconfn( HWND hwnd, HDC hdc, DWORD style );
static void STATIC_PaintBitmapfn( HWND hwnd, HDC hdc, DWORD style );
//static void STATIC_PaintEnhMetafn( HWND hwnd, HDC hdc, DWORD style );
static void STATIC_PaintEtchedfn( HWND hwnd, HDC hdc, DWORD style );
static LRESULT WINAPI StaticWndProcA( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam );
static LRESULT WINAPI StaticWndProcW( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam );

static COLORREF color_3dshadow, color_3ddkshadow, color_3dhighlight;

/* offsets for GetWindowLong for static private information */
#define HFONT_GWL_OFFSET    0
#define HICON_GWL_OFFSET    (sizeof(HFONT))
#define STATIC_EXTRA_BYTES  (HICON_GWL_OFFSET + sizeof(HICON))

typedef void (*pfPaint)( HWND hwnd, HDC hdc, DWORD style );

static pfPaint staticPaintFunc[SS_TYPEMASK+1] =
{
    STATIC_PaintTextfn,      /* SS_LEFT */
    STATIC_PaintTextfn,      /* SS_CENTER */
    STATIC_PaintTextfn,      /* SS_RIGHT */
    STATIC_PaintIconfn,      /* SS_ICON */
    STATIC_PaintRectfn,      /* SS_BLACKRECT */
    STATIC_PaintRectfn,      /* SS_GRAYRECT */
    STATIC_PaintRectfn,      /* SS_WHITERECT */
    STATIC_PaintRectfn,      /* SS_BLACKFRAME */
    STATIC_PaintRectfn,      /* SS_GRAYFRAME */
    STATIC_PaintRectfn,      /* SS_WHITEFRAME */
    NULL,                    /* SS_USERITEM */
    STATIC_PaintTextfn,      /* SS_SIMPLE */
    STATIC_PaintTextfn,      /* SS_LEFTNOWORDWRAP */
    STATIC_PaintOwnerDrawfn, /* SS_OWNERDRAW */
    STATIC_PaintBitmapfn,    /* SS_BITMAP */
    NULL,                    /* STATIC_PaintEnhMetafn, SS_ENHMETAFILE */
    STATIC_PaintEtchedfn,    /* SS_ETCHEDHORZ */
    STATIC_PaintEtchedfn,    /* SS_ETCHEDVERT */
    STATIC_PaintEtchedfn,    /* SS_ETCHEDFRAME */
};


/*********************************************************************
 * static class descriptor
 */
const struct builtin_class_descr STATIC_builtin_class =
{
#ifdef __REACTOS__
    L"Static",            /* name */
    CS_DBLCLKS | CS_PARENTDC, /* style  */
    (WNDPROC) StaticWndProcW,                  /* procW */
    (WNDPROC) StaticWndProcA,                  /* procA */
    STATIC_EXTRA_BYTES,                        /* extra */
    (LPCWSTR) IDC_ARROW,                        /* cursor */ /* FIXME Wine uses IDC_ARROWA */
    0                                          /* brush */
#else
    "Static",            /* name */
    CS_DBLCLKS | CS_PARENTDC, /* style  */
    StaticWndProcA,      /* procA */
    StaticWndProcW,      /* procW */
    STATIC_EXTRA_BYTES,  /* extra */
    IDC_ARROW,           /* cursor */
    0                    /* brush */
#endif
};


/***********************************************************************
 *           STATIC_SetIcon
 *
 * Set the icon for an SS_ICON control. Modified for ReactOS
 */
static HICON STATIC_SetIcon( HWND hwnd, HICON hicon, DWORD style )
{
    HICON prevIcon;
    ICONINFO info;

    if ((style & SS_TYPEMASK) != SS_ICON) return 0;
    if (hicon && (!GetIconInfo(hicon, &info))) {
        WARN("hicon != 0, but info == 0\n");
        return 0;
    }
    prevIcon = (HICON)SetWindowLongPtrW( hwnd, HICON_GWL_OFFSET, (LONG_PTR)hicon );
    if (hicon && !(style & SS_CENTERIMAGE) && !(style & SS_REALSIZECONTROL))
    {
        BITMAP bm;

        if (!GetObjectW(info.hbmColor, sizeof(BITMAP), &bm))
        {
            return 0;
        }
        SetWindowPos( hwnd, 0, 0, 0, bm.bmWidth, bm.bmHeight,
                      SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOZORDER );
    }
    return prevIcon;
}

/***********************************************************************
 *           STATIC_SetBitmap
 *
 * Set the bitmap for an SS_BITMAP control. Modified for ReactOS
 */
static HBITMAP STATIC_SetBitmap( HWND hwnd, HBITMAP hBitmap, DWORD style )
{
    HBITMAP hOldBitmap;

    if ((style & SS_TYPEMASK) != SS_BITMAP) return 0;
    if (hBitmap && GetObjectType(hBitmap) != OBJ_BITMAP) {
        ERR("huh? hBitmap!=0, but not bitmap\n");
        return 0;
    }
    hOldBitmap = (HBITMAP)SetWindowLongPtrW( hwnd, HICON_GWL_OFFSET, (LONG_PTR)hBitmap );
    if (hBitmap && !(style & SS_CENTERIMAGE) && !(style & SS_REALSIZECONTROL))
    {
        BITMAP bm;
        GetObjectW(hBitmap, sizeof(bm), &bm);
        SetWindowPos( hwnd, 0, 0, 0, bm.bmWidth, bm.bmHeight,
		      SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOZORDER );
    }
    return hOldBitmap;
}

/***********************************************************************
 *           STATIC_SetEnhMetaFile
 *
 * Set the enhanced metafile for an SS_ENHMETAFILE control.
 */
//static HENHMETAFILE STATIC_SetEnhMetaFile( HWND hwnd, HENHMETAFILE hEnhMetaFile, DWORD style )
//{
//    if ((style & SS_TYPEMASK) != SS_ENHMETAFILE) return 0;
//    if (hEnhMetaFile && GetObjectType(hEnhMetaFile) != OBJ_ENHMETAFILE) {
//        WARN("hEnhMetaFile != 0, but it's not an enhanced metafile\n");
//        return 0;
//    }
//    return (HENHMETAFILE)SetWindowLongPtrW( hwnd, HICON_GWL_OFFSET, (LONG_PTR)hEnhMetaFile );
//}

/***********************************************************************
 *           STATIC_GetImage
 *
 * Gets the bitmap for an SS_BITMAP control, the icon/cursor for an
 * SS_ICON control or the enhanced metafile for an SS_ENHMETAFILE control.
 */
static HANDLE STATIC_GetImage( HWND hwnd, WPARAM wParam, DWORD style )
{
    switch(style & SS_TYPEMASK)
    {
        case SS_ICON:
            if ((wParam != IMAGE_ICON) &&
                (wParam != IMAGE_CURSOR)) return NULL;
            break;
        case SS_BITMAP:
            if (wParam != IMAGE_BITMAP) return NULL;
            break;
        case SS_ENHMETAFILE:
            if (wParam != IMAGE_ENHMETAFILE) return NULL;
            break;
        default:
            return NULL;
    }
    return (HANDLE)GetWindowLongPtrW( hwnd, HICON_GWL_OFFSET );
}

/***********************************************************************
 *           STATIC_LoadIconA
 *
 * Load the icon for an SS_ICON control.
 */
static HICON STATIC_LoadIconA( HWND hwnd, LPCSTR name, DWORD style )
{
    HINSTANCE hInstance = (HINSTANCE)GetWindowLongPtrW( hwnd, GWLP_HINSTANCE );
    if ((style & SS_REALSIZEIMAGE) != 0)
    {
        return LoadImageA(hInstance, name, IMAGE_ICON, 0, 0, LR_SHARED);
    }
    else
    {
        HICON hicon = LoadIconA( hInstance, name );
        if (!hicon) hicon = LoadCursorA( hInstance, name );
        if (!hicon) hicon = LoadIconA( 0, name );
        /* Windows doesn't try to load a standard cursor,
           probably because most IDs for standard cursors conflict
           with the IDs for standard icons anyway */
    return hicon;
    }
}

/***********************************************************************
 *           STATIC_LoadIconW
 *
 * Load the icon for an SS_ICON control.
 */
static HICON STATIC_LoadIconW( HWND hwnd, LPCWSTR name, DWORD style )
{
    HINSTANCE hInstance = (HINSTANCE)GetWindowLongPtrW( hwnd, GWLP_HINSTANCE );
    if ((style & SS_REALSIZEIMAGE) != 0)
    {
        return LoadImageW(hInstance, name, IMAGE_ICON, 0, 0, LR_SHARED);
    }
    else
    {
        HICON hicon = LoadIconW( hInstance, name );
        if (!hicon) hicon = LoadCursorW( hInstance, name );
        if (!hicon) hicon = LoadIconW( 0, name );
        /* Windows doesn't try to load a standard cursor,
           probably because most IDs for standard cursors conflict
           with the IDs for standard icons anyway */
        return hicon;
    }
}

/***********************************************************************
 *           STATIC_LoadBitmapA
 *
 * Load the bitmap for an SS_BITMAP control.
 */
static HBITMAP STATIC_LoadBitmapA( HWND hwnd, LPCSTR name )
{
    HINSTANCE hInstance = (HINSTANCE)GetWindowLongPtrW( hwnd, GWLP_HINSTANCE );
    /* Windows doesn't try to load OEM Bitmaps (hInstance == NULL) */
    return LoadBitmapA( hInstance, name );
}

/***********************************************************************
 *           STATIC_LoadBitmapW
 *
 * Load the bitmap for an SS_BITMAP control.
 */
static HBITMAP STATIC_LoadBitmapW( HWND hwnd, LPCWSTR name )
{
    HINSTANCE hInstance = (HINSTANCE)GetWindowLongPtrW( hwnd, GWLP_HINSTANCE );
    /* Windows doesn't try to load OEM Bitmaps (hInstance == NULL) */
    return LoadBitmapW( hInstance, name );
}

/***********************************************************************
 *           STATIC_TryPaintFcn
 *
 * Try to immediately paint the control.
 */
static VOID STATIC_TryPaintFcn(HWND hwnd, LONG full_style)
{
    LONG style = full_style & SS_TYPEMASK;
    RECT rc;

    GetClientRect( hwnd, &rc );
    if (!IsRectEmpty(&rc) && IsWindowVisible(hwnd) && staticPaintFunc[style])
    {
	HDC hdc;
	hdc = GetDC( hwnd );
	(staticPaintFunc[style])( hwnd, hdc, full_style );
	ReleaseDC( hwnd, hdc );
    }
}

static HBRUSH STATIC_SendWmCtlColorStatic(HWND hwnd, HDC hdc)
{
    HBRUSH hBrush = (HBRUSH) SendMessageW( GetParent(hwnd),
                    WM_CTLCOLORSTATIC, (WPARAM)hdc, (LPARAM)hwnd );
    if (!hBrush) /* did the app forget to call DefWindowProc ? */
    {
        /* FIXME: DefWindowProc should return different colors if a
                  manifest is present */
        hBrush = (HBRUSH)DefWindowProcW(GetParent(hwnd), WM_CTLCOLORSTATIC,
                                        (WPARAM)hdc, (LPARAM)hwnd);
    }
    return hBrush;
}

static VOID STATIC_InitColours(void)
{
    color_3ddkshadow  = GetSysColor(COLOR_3DDKSHADOW);
    color_3dshadow    = GetSysColor(COLOR_3DSHADOW);
    color_3dhighlight = GetSysColor(COLOR_3DHIGHLIGHT);
}

/***********************************************************************
 *           hasTextStyle
 *
 * Tests if the control displays text.
 */
static BOOL hasTextStyle( DWORD style )
{
    switch(style & SS_TYPEMASK)
    {
        case SS_SIMPLE:
        case SS_LEFT:
        case SS_LEFTNOWORDWRAP:
        case SS_CENTER:
        case SS_RIGHT:
        case SS_OWNERDRAW:
            return TRUE;
    }
    
    return FALSE;
}

/***********************************************************************
 *           StaticWndProc_common
 */
static LRESULT StaticWndProc_common( HWND hwnd, UINT uMsg, WPARAM wParam,
                                     LPARAM lParam, BOOL unicode )
{
    LRESULT lResult = 0;
    LONG full_style = GetWindowLongW( hwnd, GWL_STYLE );
    LONG style = full_style & SS_TYPEMASK;

    switch (uMsg)
    {
    case WM_CREATE:
        if (style < 0L || style > SS_TYPEMASK)
        {
            ERR("Unknown style 0x%02lx\n", style );
            return -1;
        }
        STATIC_InitColours();
        break;

    case WM_NCDESTROY:
        if (style == SS_ICON) {
/*
 * FIXME
 *           DestroyIcon32( STATIC_SetIcon( wndPtr, 0 ) );
 *
 * We don't want to do this yet because DestroyIcon32 is broken. If the icon
 * had already been loaded by the application the last thing we want to do is
 * GlobalFree16 the handle.
 */
            break;
        }
        else return unicode ? DefWindowProcW(hwnd, uMsg, wParam, lParam) :
                              DefWindowProcA(hwnd, uMsg, wParam, lParam);

    case WM_PRINTCLIENT:
    case WM_PAINT:
        {
            PAINTSTRUCT ps;
            HDC hdc = wParam ? (HDC)wParam : BeginPaint(hwnd, &ps);
            if (staticPaintFunc[style])
                (staticPaintFunc[style])( hwnd, hdc, full_style );
            if (!wParam) EndPaint(hwnd, &ps);
        }
        break;

    case WM_ENABLE:
        STATIC_TryPaintFcn( hwnd, full_style );
        if (full_style & SS_NOTIFY) {
            if (wParam) {
                SendMessageW( GetParent(hwnd), WM_COMMAND,
                              MAKEWPARAM( GetWindowLongPtrW(hwnd,GWLP_ID), STN_ENABLE ), (LPARAM)hwnd);
            }
            else {
                SendMessageW( GetParent(hwnd), WM_COMMAND,
                              MAKEWPARAM( GetWindowLongPtrW(hwnd,GWLP_ID), STN_DISABLE ), (LPARAM)hwnd);
            }
        }
        break;

    case WM_SYSCOLORCHANGE:
        STATIC_InitColours();
        STATIC_TryPaintFcn( hwnd, full_style );
        break;

    case WM_NCCREATE:
        {
            LPCSTR textA;
            LPCWSTR textW;
    
            if (full_style & SS_SUNKEN)
                SetWindowLongW( hwnd, GWL_EXSTYLE,
                                GetWindowLongW( hwnd, GWL_EXSTYLE ) | WS_EX_STATICEDGE );

            if(unicode)
            {