Sweden-Number/dlls/winex11.drv/pen.c

166 lines
5.9 KiB
C

/*
* X11DRV 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 "x11drv.h"
static DWORD get_user_dashes( char *res, const DWORD *style, DWORD len )
{
DWORD i, pos, dashes[MAX_DASHLEN];
len = min( len, MAX_DASHLEN );
memcpy( dashes, style, len * sizeof(DWORD) );
for (i = pos = 0; i < len; i++)
{
if (!dashes[i]) /* get rid of 0 entry */
{
if (i < len - 1)
{
i++;
if (pos) dashes[pos - 1] += dashes[i];
else dashes[len - 1] += dashes[i];
}
else if (pos)
{
dashes[0] += dashes[pos - 1];
pos--;
}
}
else dashes[pos++] = dashes[i];
}
for (i = 0; i < pos; i++) res[i] = min( dashes[i], 255 );
return pos;
}
/***********************************************************************
* SelectPen (X11DRV.@)
*/
HPEN CDECL X11DRV_SelectPen( PHYSDEV dev, HPEN hpen, const struct brush_pattern *pattern )
{
static const char PEN_dash[] = { 16,8 };
static const char PEN_dot[] = { 4,4 };
static const char PEN_dashdot[] = { 12,8,4,8 };
static const char PEN_dashdotdot[] = { 12,4,4,4,4,4 };
static const char PEN_alternate[] = { 1,1 };
static const char EXTPEN_dash[] = { 3,1 };
static const char EXTPEN_dot[] = { 1,1 };
static const char EXTPEN_dashdot[] = { 3,1,1,1 };
static const char EXTPEN_dashdotdot[] = { 3,1,1,1,1,1 };
X11DRV_PDEVICE *physDev = get_x11drv_dev( dev );
LOGPEN logpen;
int i;
EXTLOGPEN *elp = NULL;
if (!NtGdiExtGetObjectW( hpen, sizeof(logpen), &logpen ))
{
/* must be an extended pen */
INT size = NtGdiExtGetObjectW( hpen, 0, NULL );
if (!size) return 0;
physDev->pen.ext = 1;
elp = HeapAlloc( GetProcessHeap(), 0, size );
NtGdiExtGetObjectW( hpen, size, elp );
logpen.lopnStyle = elp->elpPenStyle;
logpen.lopnWidth.x = elp->elpWidth;
logpen.lopnWidth.y = 0;
logpen.lopnColor = elp->elpColor;
}
else
physDev->pen.ext = 0;
physDev->pen.style = logpen.lopnStyle & PS_STYLE_MASK;
physDev->pen.type = logpen.lopnStyle & PS_TYPE_MASK;
physDev->pen.endcap = logpen.lopnStyle & PS_ENDCAP_MASK;
physDev->pen.linejoin = logpen.lopnStyle & PS_JOIN_MASK;
physDev->pen.width = logpen.lopnWidth.x;
if ((logpen.lopnStyle & PS_GEOMETRIC) || (physDev->pen.width >= 1))
{
physDev->pen.width = X11DRV_XWStoDS( dev->hdc, physDev->pen.width );
if (physDev->pen.width < 0) physDev->pen.width = -physDev->pen.width;
}
if (physDev->pen.width == 1) physDev->pen.width = 0; /* Faster */
if (hpen == GetStockObject( DC_PEN ))
NtGdiGetDCDword( dev->hdc, NtGdiGetDCPenColor, &logpen.lopnColor );
physDev->pen.pixel = X11DRV_PALETTE_ToPhysical( physDev, logpen.lopnColor );
switch(logpen.lopnStyle & PS_STYLE_MASK)
{
case PS_DASH:
physDev->pen.dash_len = ARRAY_SIZE( PEN_dash );
memcpy(physDev->pen.dashes, physDev->pen.ext ? EXTPEN_dash : PEN_dash,
physDev->pen.dash_len);
break;
case PS_DOT:
physDev->pen.dash_len = ARRAY_SIZE( PEN_dot );
memcpy(physDev->pen.dashes, physDev->pen.ext ? EXTPEN_dot : PEN_dot,
physDev->pen.dash_len);
break;
case PS_DASHDOT:
physDev->pen.dash_len = ARRAY_SIZE( PEN_dashdot );
memcpy(physDev->pen.dashes, physDev->pen.ext ? EXTPEN_dashdot : PEN_dashdot,
physDev->pen.dash_len);
break;
case PS_DASHDOTDOT:
physDev->pen.dash_len = ARRAY_SIZE( PEN_dashdotdot );
memcpy(physDev->pen.dashes, physDev->pen.ext ? EXTPEN_dashdotdot : PEN_dashdotdot,
physDev->pen.dash_len);
break;
case PS_ALTERNATE:
physDev->pen.dash_len = ARRAY_SIZE( PEN_alternate );
memcpy(physDev->pen.dashes, PEN_alternate, physDev->pen.dash_len);
break;
case PS_USERSTYLE:
physDev->pen.dash_len = get_user_dashes( physDev->pen.dashes,
elp->elpStyleEntry, elp->elpNumEntries );
break;
default:
physDev->pen.dash_len = 0;
break;
}
if(physDev->pen.ext && physDev->pen.dash_len && physDev->pen.width &&
(logpen.lopnStyle & PS_STYLE_MASK) != PS_USERSTYLE &&
(logpen.lopnStyle & PS_STYLE_MASK) != PS_ALTERNATE)
for(i = 0; i < physDev->pen.dash_len; i++)
physDev->pen.dashes[i] = min( physDev->pen.dashes[i] * physDev->pen.width, 255 );
HeapFree( GetProcessHeap(), 0, elp );
return hpen;
}
/***********************************************************************
* SetDCPenColor (X11DRV.@)
*/
COLORREF CDECL X11DRV_SetDCPenColor( PHYSDEV dev, COLORREF crColor )
{
X11DRV_PDEVICE *physDev = get_x11drv_dev( dev );
if (NtGdiGetDCObject( dev->hdc, NTGDI_OBJ_PEN ) == GetStockObject( DC_PEN ))
physDev->pen.pixel = X11DRV_PALETTE_ToPhysical( physDev, crColor );
return crColor;
}