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Sweden-Number/dlls/gdi32/pen.c

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/*
* GDI pen objects
*
* Copyright 1993 Alexandre Julliard
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "wine/wingdi16.h"
#include "gdi_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(gdi);
/* GDI logical pen object */
typedef struct
{
GDIOBJHDR header;
EXTLOGPEN logpen;
} PENOBJ;
static HGDIOBJ PEN_SelectObject( HGDIOBJ handle, HDC hdc );
static INT PEN_GetObject16( HGDIOBJ handle, void *obj, INT count, LPVOID buffer );
static INT PEN_GetObject( HGDIOBJ handle, void *obj, INT count, LPVOID buffer );
static const struct gdi_obj_funcs pen_funcs =
{
PEN_SelectObject, /* pSelectObject */
PEN_GetObject16, /* pGetObject16 */
PEN_GetObject, /* pGetObjectA */
PEN_GetObject, /* pGetObjectW */
NULL, /* pUnrealizeObject */
GDI_FreeObject /* pDeleteObject */
};
/***********************************************************************
* CreatePen (GDI32.@)
*/
HPEN WINAPI CreatePen( INT style, INT width, COLORREF color )
{
LOGPEN logpen;
TRACE("%d %d %06x\n", style, width, color );
logpen.lopnStyle = style;
logpen.lopnWidth.x = width;
logpen.lopnWidth.y = 0;
logpen.lopnColor = color;
return CreatePenIndirect( &logpen );
}
/***********************************************************************
* CreatePenIndirect (GDI32.@)
*/
HPEN WINAPI CreatePenIndirect( const LOGPEN * pen )
{
PENOBJ * penPtr;
HPEN hpen;
if (!(penPtr = GDI_AllocObject( sizeof(PENOBJ), PEN_MAGIC, (HGDIOBJ *)&hpen,
&pen_funcs ))) return 0;
if (pen->lopnStyle == PS_USERSTYLE || pen->lopnStyle == PS_ALTERNATE)
penPtr->logpen.elpPenStyle = PS_SOLID;
else
penPtr->logpen.elpPenStyle = pen->lopnStyle;
if (pen->lopnStyle == PS_NULL)
{
penPtr->logpen.elpWidth = 1;
penPtr->logpen.elpColor = RGB(0, 0, 0);
}
else
{
penPtr->logpen.elpWidth = abs(pen->lopnWidth.x);
penPtr->logpen.elpColor = pen->lopnColor;
}
penPtr->logpen.elpBrushStyle = BS_SOLID;
penPtr->logpen.elpHatch = 0;
penPtr->logpen.elpNumEntries = 0;
penPtr->logpen.elpStyleEntry[0] = 0;
GDI_ReleaseObj( hpen );
return hpen;
}
/***********************************************************************
* ExtCreatePen (GDI32.@)
*
* FIXME: PS_USERSTYLE not handled
*/
HPEN WINAPI ExtCreatePen( DWORD style, DWORD width,
const LOGBRUSH * brush, DWORD style_count,
const DWORD *style_bits )
{
PENOBJ * penPtr;
HPEN hpen;
if ((style & PS_STYLE_MASK) == PS_USERSTYLE)
{
if(((INT)style_count) <= 0)
return 0;
if ((style_count > 16) || !style_bits)
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
if ((style & PS_TYPE_MASK) == PS_COSMETIC)
{
/* FIXME: PS_USERSTYLE workaround */
FIXME("PS_COSMETIC | PS_USERSTYLE not handled\n");
style = (style & ~PS_STYLE_MASK) | PS_SOLID;
}
else
{
UINT i;
BOOL has_neg = FALSE, all_zero = TRUE;
for(i = 0; (i < style_count) && !has_neg; i++)
{
has_neg = has_neg || (((INT)(style_bits[i])) < 0);
all_zero = all_zero && (style_bits[i] == 0);
}
if(all_zero || has_neg)
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
}
}
else
{
if (style_count || style_bits)
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
}
if ((style & PS_STYLE_MASK) == PS_NULL)
return CreatePen( PS_NULL, 0, brush->lbColor );
if ((style & PS_TYPE_MASK) == PS_GEOMETRIC)
{
/* PS_ALTERNATE is applicable only for cosmetic pens */
if ((style & PS_STYLE_MASK) == PS_ALTERNATE)
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
if (brush->lbHatch && ((brush->lbStyle == BS_SOLID) || (brush->lbStyle == BS_HOLLOW)))
{
static int fixme_hatches_shown;
if (!fixme_hatches_shown++) FIXME("Hatches not implemented\n");
}
}
else
{
/* PS_INSIDEFRAME is applicable only for gemetric pens */
if ((style & PS_STYLE_MASK) == PS_INSIDEFRAME || width != 1)
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
}
if (!(penPtr = GDI_AllocObject( sizeof(PENOBJ) +
style_count * sizeof(DWORD) - sizeof(penPtr->logpen.elpStyleEntry),
EXT_PEN_MAGIC, (HGDIOBJ *)&hpen,
&pen_funcs ))) return 0;
penPtr->logpen.elpPenStyle = style;
penPtr->logpen.elpWidth = abs(width);
penPtr->logpen.elpBrushStyle = brush->lbStyle;
penPtr->logpen.elpColor = brush->lbColor;
penPtr->logpen.elpHatch = brush->lbHatch;
penPtr->logpen.elpNumEntries = style_count;
memcpy(penPtr->logpen.elpStyleEntry, style_bits, style_count * sizeof(DWORD));
GDI_ReleaseObj( hpen );
return hpen;
}
/***********************************************************************
* PEN_SelectObject
*/
static HGDIOBJ PEN_SelectObject( HGDIOBJ handle, HDC hdc )
{
HGDIOBJ ret = 0;
DC *dc = get_dc_ptr( hdc );
if (!dc)
{
SetLastError( ERROR_INVALID_HANDLE );
return 0;
}
if (!GDI_inc_ref_count( handle ))
{
release_dc_ptr( dc );
return 0;
}
if (dc->funcs->pSelectPen && !dc->funcs->pSelectPen( dc->physDev, handle ))
{
GDI_dec_ref_count( handle );
}
else
{
ret = dc->hPen;
dc->hPen = handle;
GDI_dec_ref_count( ret );
}
release_dc_ptr( dc );
return ret;
}
/***********************************************************************
* PEN_GetObject16
*/
static INT PEN_GetObject16( HGDIOBJ handle, void *obj, INT count, LPVOID buffer )
{
PENOBJ *pen = obj;
LOGPEN16 *logpen;
if (!buffer) return sizeof(LOGPEN16);
if (count < sizeof(LOGPEN16)) return 0;
logpen = buffer;
logpen->lopnStyle = pen->logpen.elpPenStyle;
logpen->lopnColor = pen->logpen.elpColor;
logpen->lopnWidth.x = pen->logpen.elpWidth;
logpen->lopnWidth.y = 0;
return sizeof(LOGPEN16);
}
/***********************************************************************
* PEN_GetObject
*/
static INT PEN_GetObject( HGDIOBJ handle, void *obj, INT count, LPVOID buffer )
{
PENOBJ *pen = obj;
switch (GDIMAGIC(pen->header.wMagic))
{
case PEN_MAGIC:
{
LOGPEN *lp;
if (!buffer) return sizeof(LOGPEN);
if (count < sizeof(LOGPEN)) return 0;
if ((pen->logpen.elpPenStyle & PS_STYLE_MASK) == PS_NULL &&
count == sizeof(EXTLOGPEN))
{
EXTLOGPEN *elp = buffer;
memcpy(elp, &pen->logpen, sizeof(EXTLOGPEN));
elp->elpWidth = 0;
return sizeof(EXTLOGPEN);
}
lp = buffer;
lp->lopnStyle = pen->logpen.elpPenStyle;
lp->lopnColor = pen->logpen.elpColor;
lp->lopnWidth.x = pen->logpen.elpWidth;
lp->lopnWidth.y = 0;
return sizeof(LOGPEN);
}
case EXT_PEN_MAGIC:
{
INT size = sizeof(EXTLOGPEN) + pen->logpen.elpNumEntries * sizeof(DWORD) - sizeof(pen->logpen.elpStyleEntry);
if (!buffer) return size;
if (count < size) return 0;
memcpy(buffer, &pen->logpen, size);
return size;
}
default:
break;
}
assert(0);
return 0;
}
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