4 * Copyright 1993, 1994 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
29 #include "gdi_private.h"
30 #include "wine/debug.h"
32 WINE_DEFAULT_DEBUG_CHANNEL(gdi);
34 /* GDI logical brush object */
39 struct brush_pattern pattern;
42 #define NB_HATCH_STYLES 6
44 static HGDIOBJ BRUSH_SelectObject( HGDIOBJ handle, HDC hdc );
45 static INT BRUSH_GetObject( HGDIOBJ handle, INT count, LPVOID buffer );
46 static BOOL BRUSH_DeleteObject( HGDIOBJ handle );
48 static const struct gdi_obj_funcs brush_funcs =
50 BRUSH_SelectObject, /* pSelectObject */
51 BRUSH_GetObject, /* pGetObjectA */
52 BRUSH_GetObject, /* pGetObjectW */
53 NULL, /* pUnrealizeObject */
54 BRUSH_DeleteObject /* pDeleteObject */
58 static BOOL copy_bitmap( struct brush_pattern *brush, HBITMAP bitmap )
60 char buffer[FIELD_OFFSET( BITMAPINFO, bmiColors[256])];
61 BITMAPINFO *info = (BITMAPINFO *)buffer;
62 struct gdi_image_bits bits;
63 struct bitblt_coords src;
64 BITMAPOBJ *bmp = GDI_GetObjPtr( bitmap, OBJ_BITMAP );
66 if (!bmp) return FALSE;
68 src.visrect.left = src.x = 0;
69 src.visrect.top = src.y = 0;
70 src.visrect.right = src.width = bmp->dib.dsBm.bmWidth;
71 src.visrect.bottom = src.height = bmp->dib.dsBm.bmHeight;
72 if (get_image_from_bitmap( bmp, info, &bits, &src )) goto done;
77 if (!(brush->bits.ptr = HeapAlloc( GetProcessHeap(), 0, info->bmiHeader.biSizeImage ))) goto done;
78 memcpy( brush->bits.ptr, bits.ptr, info->bmiHeader.biSizeImage );
79 brush->bits.free = free_heap_bits;
82 if (!(brush->info = HeapAlloc( GetProcessHeap(), 0, get_dib_info_size( info, DIB_RGB_COLORS ))))
84 if (brush->bits.free) brush->bits.free( &brush->bits );
87 memcpy( brush->info, info, get_dib_info_size( info, DIB_RGB_COLORS ));
88 brush->bits.is_copy = FALSE; /* the bits can't be modified */
89 brush->usage = DIB_RGB_COLORS;
92 GDI_ReleaseObj( bitmap );
93 return brush->info != NULL;
96 BOOL store_brush_pattern( LOGBRUSH *brush, struct brush_pattern *pattern )
100 pattern->info = NULL;
101 pattern->bits.free = NULL;
103 switch (brush->lbStyle)
110 if (brush->lbHatch > HS_DIAGCROSS)
112 if (brush->lbHatch >= HS_API_MAX) return FALSE;
113 brush->lbStyle = BS_SOLID;
119 brush->lbStyle = BS_PATTERN;
123 return copy_bitmap( pattern, (HBITMAP)brush->lbHatch );
126 hmem = (HGLOBAL)brush->lbHatch;
127 if (!(brush->lbHatch = (ULONG_PTR)GlobalLock( hmem ))) return FALSE;
129 case BS_DIBPATTERNPT:
130 pattern->usage = brush->lbColor;
131 pattern->info = copy_packed_dib( (BITMAPINFO *)brush->lbHatch, pattern->usage );
132 if (hmem) GlobalUnlock( hmem );
133 if (!pattern->info) return FALSE;
134 pattern->bits.ptr = (char *)pattern->info + get_dib_info_size( pattern->info, pattern->usage );
135 brush->lbStyle = BS_DIBPATTERN;
139 case BS_DIBPATTERN8X8:
143 WARN( "invalid brush style %u\n", brush->lbStyle );
148 void free_brush_pattern( struct brush_pattern *pattern )
150 if (pattern->bits.free) pattern->bits.free( &pattern->bits );
151 HeapFree( GetProcessHeap(), 0, pattern->info );
154 BOOL get_brush_bitmap_info( HBRUSH handle, BITMAPINFO *info, void **bits, UINT *usage )
159 if (!(brush = GDI_GetObjPtr( handle, OBJ_BRUSH ))) return FALSE;
161 if (brush->pattern.info)
163 memcpy( info, brush->pattern.info, get_dib_info_size( brush->pattern.info, brush->pattern.usage ));
164 if (info->bmiHeader.biBitCount <= 8 && !info->bmiHeader.biClrUsed)
165 fill_default_color_table( info );
166 *bits = brush->pattern.bits.ptr;
167 *usage = brush->pattern.usage;
170 GDI_ReleaseObj( handle );
175 /***********************************************************************
176 * CreateBrushIndirect (GDI32.@)
178 * Create a logical brush with a given style, color or pattern.
181 * brush [I] Pointer to a LOGBRUSH structure describing the desired brush.
184 * A handle to the created brush, or a NULL handle if the brush cannot be
188 * - The brush returned should be freed by the caller using DeleteObject()
189 * when it is no longer required.
190 * - Windows 95 and earlier cannot create brushes from bitmaps or DIBs larger
191 * than 8x8 pixels. If a larger bitmap is given, only a portion of the bitmap
194 HBRUSH WINAPI CreateBrushIndirect( const LOGBRUSH * brush )
199 if (!(ptr = HeapAlloc( GetProcessHeap(), 0, sizeof(*ptr) ))) return 0;
201 ptr->logbrush = *brush;
203 if (store_brush_pattern( &ptr->logbrush, &ptr->pattern ) &&
204 (hbrush = alloc_gdi_handle( &ptr->header, OBJ_BRUSH, &brush_funcs )))
206 TRACE("%p\n", hbrush);
210 free_brush_pattern( &ptr->pattern );
211 HeapFree( GetProcessHeap(), 0, ptr );
216 /***********************************************************************
217 * CreateHatchBrush (GDI32.@)
219 * Create a logical brush with a hatched pattern.
222 * style [I] Direction of lines for the hatch pattern (HS_* values from "wingdi.h")
223 * color [I] Colour of the hatched pattern
226 * A handle to the created brush, or a NULL handle if the brush cannot
230 * - This function uses CreateBrushIndirect() to create the brush.
231 * - The brush returned should be freed by the caller using DeleteObject()
232 * when it is no longer required.
234 HBRUSH WINAPI CreateHatchBrush( INT style, COLORREF color )
238 TRACE("%d %06x\n", style, color );
240 logbrush.lbStyle = BS_HATCHED;
241 logbrush.lbColor = color;
242 logbrush.lbHatch = style;
244 return CreateBrushIndirect( &logbrush );
248 /***********************************************************************
249 * CreatePatternBrush (GDI32.@)
251 * Create a logical brush with a pattern from a bitmap.
254 * hbitmap [I] Bitmap containing pattern for the brush
257 * A handle to the created brush, or a NULL handle if the brush cannot
261 * - This function uses CreateBrushIndirect() to create the brush.
262 * - The brush returned should be freed by the caller using DeleteObject()
263 * when it is no longer required.
265 HBRUSH WINAPI CreatePatternBrush( HBITMAP hbitmap )
267 LOGBRUSH logbrush = { BS_PATTERN, 0, 0 };
268 TRACE("%p\n", hbitmap );
270 logbrush.lbHatch = (ULONG_PTR)hbitmap;
271 return CreateBrushIndirect( &logbrush );
275 /***********************************************************************
276 * CreateDIBPatternBrush (GDI32.@)
278 * Create a logical brush with a pattern from a DIB.
281 * hbitmap [I] Global object containing BITMAPINFO structure for the pattern
282 * coloruse [I] Specifies color format, if provided
285 * A handle to the created brush, or a NULL handle if the brush cannot
289 * - This function uses CreateBrushIndirect() to create the brush.
290 * - The brush returned should be freed by the caller using DeleteObject()
291 * when it is no longer required.
292 * - This function is for compatibility only. CreateDIBPatternBrushPt() should
295 HBRUSH WINAPI CreateDIBPatternBrush( HGLOBAL hbitmap, UINT coloruse )
299 TRACE("%p\n", hbitmap );
301 logbrush.lbStyle = BS_DIBPATTERN;
302 logbrush.lbColor = coloruse;
304 logbrush.lbHatch = (ULONG_PTR)hbitmap;
306 return CreateBrushIndirect( &logbrush );
310 /***********************************************************************
311 * CreateDIBPatternBrushPt (GDI32.@)
313 * Create a logical brush with a pattern from a DIB.
316 * data [I] Pointer to a BITMAPINFO structure and image data for the pattern
317 * coloruse [I] Specifies color format, if provided
320 * A handle to the created brush, or a NULL handle if the brush cannot
324 * - This function uses CreateBrushIndirect() to create the brush.
325 * - The brush returned should be freed by the caller using DeleteObject()
326 * when it is no longer required.
328 HBRUSH WINAPI CreateDIBPatternBrushPt( const void* data, UINT coloruse )
330 const BITMAPINFO *info=data;
336 TRACE("%p %dx%d %dbpp\n", info, info->bmiHeader.biWidth,
337 info->bmiHeader.biHeight, info->bmiHeader.biBitCount);
339 logbrush.lbStyle = BS_DIBPATTERNPT;
340 logbrush.lbColor = coloruse;
341 logbrush.lbHatch = (ULONG_PTR)data;
343 return CreateBrushIndirect( &logbrush );
347 /***********************************************************************
348 * CreateSolidBrush (GDI32.@)
350 * Create a logical brush consisting of a single colour.
353 * color [I] Colour to make the solid brush
356 * A handle to the newly created brush, or a NULL handle if the brush cannot
360 * - This function uses CreateBrushIndirect() to create the brush.
361 * - The brush returned should be freed by the caller using DeleteObject()
362 * when it is no longer required.
364 HBRUSH WINAPI CreateSolidBrush( COLORREF color )
368 TRACE("%06x\n", color );
370 logbrush.lbStyle = BS_SOLID;
371 logbrush.lbColor = color;
372 logbrush.lbHatch = 0;
374 return CreateBrushIndirect( &logbrush );
378 /***********************************************************************
379 * SetBrushOrgEx (GDI32.@)
381 * Set the brush origin for a device context.
384 * hdc [I] Device context to set the brush origin for
387 * oldorg [O] If non NULL, destination for previously set brush origin.
390 * Success: TRUE. The origin is set to (x,y), and oldorg is updated if given.
392 BOOL WINAPI SetBrushOrgEx( HDC hdc, INT x, INT y, LPPOINT oldorg )
394 DC *dc = get_dc_ptr( hdc );
396 if (!dc) return FALSE;
399 oldorg->x = dc->brushOrgX;
400 oldorg->y = dc->brushOrgY;
404 release_dc_ptr( dc );
408 /***********************************************************************
409 * FixBrushOrgEx (GDI32.@)
414 * This function is no longer documented by MSDN, but in Win95 GDI32 it
415 * is the same as SetBrushOrgEx().
417 BOOL WINAPI FixBrushOrgEx( HDC hdc, INT x, INT y, LPPOINT oldorg )
419 return SetBrushOrgEx(hdc,x,y,oldorg);
423 /***********************************************************************
426 static HGDIOBJ BRUSH_SelectObject( HGDIOBJ handle, HDC hdc )
430 DC *dc = get_dc_ptr( hdc );
434 SetLastError( ERROR_INVALID_HANDLE );
438 if ((brush = GDI_GetObjPtr( handle, OBJ_BRUSH )))
440 PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSelectBrush );
441 struct brush_pattern *pattern = &brush->pattern;
443 if (!pattern->info) pattern = NULL;
445 GDI_inc_ref_count( handle );
446 GDI_ReleaseObj( handle );
448 if (!physdev->funcs->pSelectBrush( physdev, handle, pattern ))
450 GDI_dec_ref_count( handle );
456 GDI_dec_ref_count( ret );
459 release_dc_ptr( dc );
464 /***********************************************************************
467 static BOOL BRUSH_DeleteObject( HGDIOBJ handle )
469 BRUSHOBJ *brush = free_gdi_handle( handle );
471 if (!brush) return FALSE;
472 free_brush_pattern( &brush->pattern );
473 return HeapFree( GetProcessHeap(), 0, brush );
477 /***********************************************************************
480 static INT BRUSH_GetObject( HGDIOBJ handle, INT count, LPVOID buffer )
482 BRUSHOBJ *brush = GDI_GetObjPtr( handle, OBJ_BRUSH );
484 if (!brush) return 0;
487 if (count > sizeof(brush->logbrush)) count = sizeof(brush->logbrush);
488 memcpy( buffer, &brush->logbrush, count );
490 else count = sizeof(brush->logbrush);
491 GDI_ReleaseObj( handle );