299 lines
7.9 KiB
C
299 lines
7.9 KiB
C
/*
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* GDI brush objects
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*
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* Copyright 1993 Alexandre Julliard
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*/
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static char Copyright[] = "Copyright Alexandre Julliard, 1993";
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#include "gdi.h"
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#include "bitmap.h"
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#include "prototypes.h"
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#include "metafile.h"
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#define NB_HATCH_STYLES 6
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static char HatchBrushes[NB_HATCH_STYLES][8] =
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{
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{ 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00 }, /* HS_HORIZONTAL */
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{ 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08 }, /* HS_VERTICAL */
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{ 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80 }, /* HS_FDIAGONAL */
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{ 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01 }, /* HS_BDIAGONAL */
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{ 0x08, 0x08, 0x08, 0xff, 0x08, 0x08, 0x08, 0x08 }, /* HS_CROSS */
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{ 0x81, 0x42, 0x24, 0x18, 0x18, 0x24, 0x42, 0x81 } /* HS_DIAGCROSS */
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};
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extern WORD COLOR_ToPhysical( DC *dc, COLORREF color );
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/***********************************************************************
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* CreateBrushIndirect (GDI.50)
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*/
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HBRUSH CreateBrushIndirect( LOGBRUSH * brush )
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{
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BRUSHOBJ * brushPtr;
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HBRUSH hbrush = GDI_AllocObject( sizeof(BRUSHOBJ), BRUSH_MAGIC );
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if (!hbrush) return 0;
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brushPtr = (BRUSHOBJ *) GDI_HEAP_ADDR( hbrush );
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memcpy( &brushPtr->logbrush, brush, sizeof(LOGBRUSH) );
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return hbrush;
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}
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/***********************************************************************
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* CreateHatchBrush (GDI.58)
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*/
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HBRUSH CreateHatchBrush( short style, COLORREF color )
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{
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LOGBRUSH logbrush = { BS_HATCHED, color, style };
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#ifdef DEBUG_GDI
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printf( "CreateHatchBrush: %d %06x\n", style, color );
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#endif
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if ((style < 0) || (style >= NB_HATCH_STYLES)) return 0;
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return CreateBrushIndirect( &logbrush );
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}
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/***********************************************************************
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* CreatePatternBrush (GDI.60)
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*/
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HBRUSH CreatePatternBrush( HBITMAP hbitmap )
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{
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LOGBRUSH logbrush = { BS_PATTERN, 0, 0 };
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BITMAPOBJ *bmp, *newbmp;
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#ifdef DEBUG_GDI
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printf( "CreatePatternBrush: %d\n", hbitmap );
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#endif
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/* Make a copy of the bitmap */
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if (!(bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC )))
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return 0;
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logbrush.lbHatch = CreateBitmapIndirect( &bmp->bitmap );
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newbmp = (BITMAPOBJ *) GDI_GetObjPtr( logbrush.lbHatch, BITMAP_MAGIC );
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if (!newbmp) return 0;
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XCopyArea( display, bmp->pixmap, newbmp->pixmap, BITMAP_GC(bmp),
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0, 0, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight, 0, 0 );
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return CreateBrushIndirect( &logbrush );
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}
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/***********************************************************************
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* CreateDIBPatternBrush (GDI.445)
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*/
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HBRUSH CreateDIBPatternBrush( HANDLE hbitmap, WORD coloruse )
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{
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LOGBRUSH logbrush = { BS_DIBPATTERN, coloruse, 0 };
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BITMAPINFO *info, *newInfo;
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int size;
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#ifdef DEBUG_GDI
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printf( "CreateDIBPatternBrush: %d\n", hbitmap );
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#endif
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/* Make a copy of the bitmap */
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if (!(info = (BITMAPINFO *) GlobalLock( hbitmap ))) return 0;
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size = info->bmiHeader.biSizeImage;
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if (!size)
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size = (info->bmiHeader.biWidth * info->bmiHeader.biBitCount + 31) / 32
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* 8 * info->bmiHeader.biHeight;
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size += DIB_BitmapInfoSize( info, coloruse );
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if (!(logbrush.lbHatch = GlobalAlloc( GMEM_MOVEABLE, size )))
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{
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GlobalUnlock( hbitmap );
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return 0;
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}
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newInfo = (BITMAPINFO *) GlobalLock( logbrush.lbHatch );
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memcpy( newInfo, info, size );
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GlobalUnlock( logbrush.lbHatch );
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GlobalUnlock( hbitmap );
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return CreateBrushIndirect( &logbrush );
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}
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/***********************************************************************
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* CreateSolidBrush (GDI.66)
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*/
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HBRUSH CreateSolidBrush( COLORREF color )
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{
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LOGBRUSH logbrush = { BS_SOLID, color, 0 };
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#ifdef DEBUG_GDI
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printf( "CreateSolidBrush: %06x\n", color );
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#endif
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return CreateBrushIndirect( &logbrush );
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}
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/***********************************************************************
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* SetBrushOrg (GDI.148)
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*/
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DWORD SetBrushOrg( HDC hdc, short x, short y )
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{
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DWORD retval;
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DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
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if (!dc) return FALSE;
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retval = dc->w.brushOrgX | (dc->w.brushOrgY << 16);
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dc->w.brushOrgX = x;
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dc->w.brushOrgY = y;
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return retval;
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}
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/***********************************************************************
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* BRUSH_DeleteObject
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*/
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BOOL BRUSH_DeleteObject( HBRUSH hbrush, BRUSHOBJ * brush )
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{
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switch(brush->logbrush.lbStyle)
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{
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case BS_PATTERN:
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DeleteObject( brush->logbrush.lbHatch );
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break;
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case BS_DIBPATTERN:
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GlobalFree( brush->logbrush.lbHatch );
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break;
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}
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return GDI_FreeObject( hbrush );
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}
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/***********************************************************************
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* BRUSH_GetObject
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*/
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int BRUSH_GetObject( BRUSHOBJ * brush, int count, LPSTR buffer )
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{
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if (count > sizeof(LOGBRUSH)) count = sizeof(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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* BRUSH_MakeSolidBrush
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*/
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static void BRUSH_SelectSolidBrush( DC *dc, COLORREF color )
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{
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if ((dc->w.bitsPerPixel > 1) && !COLOR_IsSolid( color ))
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{
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/* Dithered brush */
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dc->u.x.brush.pixmap = DITHER_DitherColor( dc, color );
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dc->u.x.brush.fillStyle = FillTiled;
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dc->u.x.brush.pixel = 0;
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}
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else
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{
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/* Solid brush */
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dc->u.x.brush.pixel = COLOR_ToPhysical( dc, color );
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dc->u.x.brush.fillStyle = FillSolid;
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}
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}
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/***********************************************************************
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* BRUSH_SelectPatternBrush
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*/
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static BOOL BRUSH_SelectPatternBrush( DC * dc, HBITMAP hbitmap )
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{
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BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
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if (!bmp) return FALSE;
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dc->u.x.brush.pixmap = XCreatePixmap( display, rootWindow,
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8, 8, bmp->bitmap.bmBitsPixel );
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XCopyArea( display, bmp->pixmap, dc->u.x.brush.pixmap,
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BITMAP_GC(bmp), 0, 0, 8, 8, 0, 0 );
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if (bmp->bitmap.bmBitsPixel > 1)
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{
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dc->u.x.brush.fillStyle = FillTiled;
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dc->u.x.brush.pixel = 0; /* Ignored */
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}
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else
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{
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dc->u.x.brush.fillStyle = FillOpaqueStippled;
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dc->u.x.brush.pixel = -1; /* Special case (see DC_SetupGCForBrush) */
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}
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return TRUE;
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}
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/***********************************************************************
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* BRUSH_SelectObject
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*/
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HBRUSH BRUSH_SelectObject( HDC hdc, DC * dc, HBRUSH hbrush, BRUSHOBJ * brush )
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{
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HBITMAP hBitmap;
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BITMAPINFO * bmpInfo;
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HBRUSH prevHandle = dc->w.hBrush;
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if (dc->header.wMagic == METAFILE_DC_MAGIC)
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{
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switch (brush->logbrush.lbStyle)
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{
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case BS_SOLID:
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case BS_HATCHED:
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case BS_HOLLOW:
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if (!MF_CreateBrushIndirect(dc, hbrush, &(brush->logbrush)))
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return 0;
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break;
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case BS_PATTERN:
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case BS_DIBPATTERN:
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if (!MF_CreatePatternBrush(dc, hbrush, &(brush->logbrush)))
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return 0;
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break;
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}
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return 1;
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}
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dc->w.hBrush = hbrush;
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if (dc->u.x.brush.pixmap)
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{
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XFreePixmap( display, dc->u.x.brush.pixmap );
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dc->u.x.brush.pixmap = 0;
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}
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dc->u.x.brush.style = brush->logbrush.lbStyle;
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switch(brush->logbrush.lbStyle)
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{
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case BS_NULL:
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break;
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case BS_SOLID:
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BRUSH_SelectSolidBrush( dc, brush->logbrush.lbColor );
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break;
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case BS_HATCHED:
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dc->u.x.brush.pixel = COLOR_ToPhysical( dc, brush->logbrush.lbColor );
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dc->u.x.brush.pixmap = XCreateBitmapFromData( display, rootWindow,
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HatchBrushes[brush->logbrush.lbHatch], 8, 8 );
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dc->u.x.brush.fillStyle = FillStippled;
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break;
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case BS_PATTERN:
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BRUSH_SelectPatternBrush( dc, brush->logbrush.lbHatch );
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break;
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case BS_DIBPATTERN:
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if ((bmpInfo = (BITMAPINFO *) GlobalLock( brush->logbrush.lbHatch )))
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{
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int size = DIB_BitmapInfoSize( bmpInfo, brush->logbrush.lbColor );
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hBitmap = CreateDIBitmap( hdc, &bmpInfo->bmiHeader, CBM_INIT,
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((char *)bmpInfo) + size, bmpInfo,
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(WORD) brush->logbrush.lbColor );
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BRUSH_SelectPatternBrush( dc, hBitmap );
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DeleteObject( hBitmap );
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GlobalUnlock( brush->logbrush.lbHatch );
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}
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break;
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}
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return prevHandle;
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}
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