398 lines
10 KiB
C
398 lines
10 KiB
C
/*
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* GDI brush objects
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*
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* Copyright 1993, 1994 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include <stdarg.h>
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#include <string.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wingdi.h"
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#include "wine/wingdi16.h"
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#include "bitmap.h"
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#include "wownt32.h"
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#include "gdi_private.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(gdi);
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/* GDI logical brush object */
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typedef struct
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{
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GDIOBJHDR header;
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LOGBRUSH logbrush;
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} BRUSHOBJ;
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#define NB_HATCH_STYLES 6
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static HGDIOBJ BRUSH_SelectObject( HGDIOBJ handle, void *obj, HDC hdc );
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static INT BRUSH_GetObject16( HGDIOBJ handle, void *obj, INT count, LPVOID buffer );
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static INT BRUSH_GetObject( HGDIOBJ handle, void *obj, INT count, LPVOID buffer );
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static BOOL BRUSH_DeleteObject( HGDIOBJ handle, void *obj );
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static const struct gdi_obj_funcs brush_funcs =
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{
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BRUSH_SelectObject, /* pSelectObject */
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BRUSH_GetObject16, /* pGetObject16 */
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BRUSH_GetObject, /* pGetObjectA */
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BRUSH_GetObject, /* pGetObjectW */
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NULL, /* pUnrealizeObject */
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BRUSH_DeleteObject /* pDeleteObject */
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};
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static HGLOBAL16 dib_copy(BITMAPINFO *info, UINT coloruse)
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{
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BITMAPINFO *newInfo;
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HGLOBAL16 hmem;
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INT size;
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if (info->bmiHeader.biCompression)
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size = info->bmiHeader.biSizeImage;
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else
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size = DIB_GetDIBImageBytes(info->bmiHeader.biWidth,
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info->bmiHeader.biHeight,
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info->bmiHeader.biBitCount);
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size += DIB_BitmapInfoSize( info, coloruse );
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if (!(hmem = GlobalAlloc16( GMEM_MOVEABLE, size )))
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{
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return 0;
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}
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newInfo = (BITMAPINFO *) GlobalLock16( hmem );
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memcpy( newInfo, info, size );
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GlobalUnlock16( hmem );
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return hmem;
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}
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/***********************************************************************
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* CreateBrushIndirect (GDI32.@)
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*
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* BUGS
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* As for Windows 95 and Windows 98:
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* Creating brushes from bitmaps or DIBs larger than 8x8 pixels
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* is not supported. If a larger bitmap is given, only a portion
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* of the bitmap is used.
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*/
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HBRUSH WINAPI CreateBrushIndirect( const LOGBRUSH * brush )
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{
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BRUSHOBJ * ptr;
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HBRUSH hbrush;
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if (!(ptr = GDI_AllocObject( sizeof(BRUSHOBJ), BRUSH_MAGIC,
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(HGDIOBJ *)&hbrush, &brush_funcs ))) return 0;
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ptr->logbrush.lbStyle = brush->lbStyle;
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ptr->logbrush.lbColor = brush->lbColor;
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ptr->logbrush.lbHatch = brush->lbHatch;
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switch (ptr->logbrush.lbStyle)
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{
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case BS_PATTERN8X8:
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ptr->logbrush.lbStyle = BS_PATTERN;
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/* fall through */
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case BS_PATTERN:
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ptr->logbrush.lbHatch = (LONG)BITMAP_CopyBitmap( (HBITMAP) ptr->logbrush.lbHatch );
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if (!ptr->logbrush.lbHatch) goto error;
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break;
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case BS_DIBPATTERNPT:
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ptr->logbrush.lbStyle = BS_DIBPATTERN;
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ptr->logbrush.lbHatch = (LONG)dib_copy( (BITMAPINFO *) ptr->logbrush.lbHatch,
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ptr->logbrush.lbColor);
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if (!ptr->logbrush.lbHatch) goto error;
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break;
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case BS_DIBPATTERN8X8:
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case BS_DIBPATTERN:
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{
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BITMAPINFO* bmi;
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HGLOBAL h = (HGLOBAL)ptr->logbrush.lbHatch;
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ptr->logbrush.lbStyle = BS_DIBPATTERN;
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if (!(bmi = (BITMAPINFO *)GlobalLock( h ))) goto error;
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ptr->logbrush.lbHatch = dib_copy( bmi, ptr->logbrush.lbColor);
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GlobalUnlock( h );
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if (!ptr->logbrush.lbHatch) goto error;
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break;
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}
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default:
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if(ptr->logbrush.lbStyle > BS_MONOPATTERN) goto error;
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break;
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}
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GDI_ReleaseObj( hbrush );
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TRACE("%p\n", hbrush);
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return hbrush;
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error:
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GDI_FreeObject( hbrush, ptr );
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return 0;
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}
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/***********************************************************************
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* CreateHatchBrush (GDI32.@)
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*/
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HBRUSH WINAPI CreateHatchBrush( INT style, COLORREF color )
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{
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LOGBRUSH logbrush;
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TRACE("%d %06lx\n", style, color );
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logbrush.lbStyle = BS_HATCHED;
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logbrush.lbColor = color;
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logbrush.lbHatch = style;
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return CreateBrushIndirect( &logbrush );
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}
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/***********************************************************************
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* CreatePatternBrush (GDI32.@)
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*/
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HBRUSH WINAPI CreatePatternBrush( HBITMAP hbitmap )
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{
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LOGBRUSH logbrush = { BS_PATTERN, 0, 0 };
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TRACE("%p\n", hbitmap );
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logbrush.lbHatch = (ULONG_PTR)hbitmap;
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return CreateBrushIndirect( &logbrush );
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}
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/***********************************************************************
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* CreateDIBPatternBrush (GDI32.@)
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*
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* Create a logical brush which has the pattern specified by the DIB
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*
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* Function call is for compatibility only. CreateDIBPatternBrushPt should be used.
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*
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* RETURNS
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*
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* Handle to a logical brush on success, NULL on failure.
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*
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* BUGS
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*
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*/
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HBRUSH WINAPI CreateDIBPatternBrush(
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HGLOBAL hbitmap, /* [in] Global object containg BITMAPINFO structure */
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UINT coloruse /* [in] Specifies color format, if provided */
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)
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{
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LOGBRUSH logbrush;
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TRACE("%p\n", hbitmap );
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logbrush.lbStyle = BS_DIBPATTERN;
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logbrush.lbColor = coloruse;
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logbrush.lbHatch = (LONG)hbitmap;
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return CreateBrushIndirect( &logbrush );
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}
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/***********************************************************************
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* CreateDIBPatternBrushPt (GDI32.@)
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*
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* Create a logical brush which has the pattern specified by the DIB
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*
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* RETURNS
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*
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* Handle to a logical brush on success, NULL on failure.
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*
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* BUGS
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*
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*/
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HBRUSH WINAPI CreateDIBPatternBrushPt(
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const void* data, /* [in] Pointer to a BITMAPINFO structure followed by more data */
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UINT coloruse /* [in] Specifies color format, if provided */
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)
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{
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BITMAPINFO *info=(BITMAPINFO*)data;
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LOGBRUSH logbrush;
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if (!data)
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return NULL;
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TRACE("%p %ldx%ld %dbpp\n", info, info->bmiHeader.biWidth,
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info->bmiHeader.biHeight, info->bmiHeader.biBitCount);
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logbrush.lbStyle = BS_DIBPATTERNPT;
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logbrush.lbColor = coloruse;
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logbrush.lbHatch = (LONG) data;
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return CreateBrushIndirect( &logbrush );
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}
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/***********************************************************************
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* CreateSolidBrush (GDI32.@)
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*/
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HBRUSH WINAPI CreateSolidBrush( COLORREF color )
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{
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LOGBRUSH logbrush;
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TRACE("%06lx\n", color );
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logbrush.lbStyle = BS_SOLID;
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logbrush.lbColor = color;
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logbrush.lbHatch = 0;
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return CreateBrushIndirect( &logbrush );
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}
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/***********************************************************************
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* SetBrushOrgEx (GDI32.@)
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*/
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BOOL WINAPI SetBrushOrgEx( HDC hdc, INT x, INT y, LPPOINT oldorg )
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{
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DC *dc = DC_GetDCPtr( hdc );
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if (!dc) return FALSE;
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if (oldorg)
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{
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oldorg->x = dc->brushOrgX;
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oldorg->y = dc->brushOrgY;
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}
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dc->brushOrgX = x;
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dc->brushOrgY = y;
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GDI_ReleaseObj( hdc );
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return TRUE;
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}
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/***********************************************************************
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* FixBrushOrgEx (GDI32.@)
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* SDK says discontinued, but in Win95 GDI32 this is the same as SetBrushOrgEx
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*/
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BOOL WINAPI FixBrushOrgEx( HDC hdc, INT x, INT y, LPPOINT oldorg )
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{
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return SetBrushOrgEx(hdc,x,y,oldorg);
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}
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/***********************************************************************
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* BRUSH_SelectObject
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*/
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static HGDIOBJ BRUSH_SelectObject( HGDIOBJ handle, void *obj, HDC hdc )
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{
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BRUSHOBJ *brush = obj;
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HGDIOBJ ret;
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DC *dc = DC_GetDCPtr( hdc );
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if (!dc) return 0;
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if (brush->logbrush.lbStyle == BS_PATTERN)
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BITMAP_SetOwnerDC( (HBITMAP)brush->logbrush.lbHatch, dc );
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ret = dc->hBrush;
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if (dc->funcs->pSelectBrush) handle = dc->funcs->pSelectBrush( dc->physDev, handle );
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if (handle) dc->hBrush = handle;
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else ret = 0;
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GDI_ReleaseObj( hdc );
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return ret;
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}
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/***********************************************************************
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* BRUSH_DeleteObject
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*/
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static BOOL BRUSH_DeleteObject( HGDIOBJ handle, void *obj )
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{
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BRUSHOBJ *brush = obj;
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switch(brush->logbrush.lbStyle)
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{
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case BS_PATTERN:
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DeleteObject( (HGDIOBJ)brush->logbrush.lbHatch );
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break;
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case BS_DIBPATTERN:
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GlobalFree16( (HGLOBAL16)brush->logbrush.lbHatch );
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break;
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}
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return GDI_FreeObject( handle, obj );
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}
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/***********************************************************************
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* BRUSH_GetObject16
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*/
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static INT BRUSH_GetObject16( HGDIOBJ handle, void *obj, INT count, LPVOID buffer )
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{
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BRUSHOBJ *brush = obj;
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LOGBRUSH16 logbrush;
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logbrush.lbStyle = brush->logbrush.lbStyle;
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logbrush.lbColor = brush->logbrush.lbColor;
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logbrush.lbHatch = brush->logbrush.lbHatch;
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if (count > sizeof(logbrush)) count = sizeof(logbrush);
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memcpy( buffer, &logbrush, count );
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return count;
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}
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/***********************************************************************
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* BRUSH_GetObject
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*/
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static INT BRUSH_GetObject( HGDIOBJ handle, void *obj, INT count, LPVOID buffer )
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{
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BRUSHOBJ *brush = obj;
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if( !buffer )
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return sizeof(brush->logbrush);
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if (count > sizeof(brush->logbrush)) count = sizeof(brush->logbrush);
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memcpy( buffer, &brush->logbrush, count );
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return count;
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}
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/***********************************************************************
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* SetSolidBrush (GDI.604)
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*
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* If hBrush is a solid brush, change its color to newColor.
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*
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* RETURNS
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* TRUE on success, FALSE on failure.
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*
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* FIXME: untested, not sure if correct.
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*/
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BOOL16 WINAPI SetSolidBrush16(HBRUSH16 hBrush, COLORREF newColor )
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{
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BRUSHOBJ * brushPtr;
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BOOL16 res = FALSE;
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TRACE("(hBrush %04x, newColor %08lx)\n", hBrush, (DWORD)newColor);
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if (!(brushPtr = (BRUSHOBJ *) GDI_GetObjPtr( HBRUSH_32(hBrush), BRUSH_MAGIC )))
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return FALSE;
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if (brushPtr->logbrush.lbStyle == BS_SOLID)
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{
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brushPtr->logbrush.lbColor = newColor;
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res = TRUE;
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}
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GDI_ReleaseObj( HBRUSH_32(hBrush) );
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return res;
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}
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