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winex11: Filter out zero-size dashes for PS_USERSTYLE pens.

This commit is contained in:
Alexandre Julliard 2011-10-21 14:55:26 +02:00
parent d0740365ff
commit f839e53272
1 changed files with 35 additions and 6 deletions
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41
dlls/winex11.drv/pen.c
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@ -25,6 +25,35 @@
WINE_DEFAULT_DEBUG_CHANNEL(x11drv); WINE_DEFAULT_DEBUG_CHANNEL(x11drv);
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.@) * SelectPen (X11DRV.@)
*/ */
@ -106,18 +135,18 @@ HPEN X11DRV_SelectPen( PHYSDEV dev, HPEN hpen )
memcpy(physDev->pen.dashes, PEN_alternate, physDev->pen.dash_len); memcpy(physDev->pen.dashes, PEN_alternate, physDev->pen.dash_len);
break; break;
case PS_USERSTYLE: case PS_USERSTYLE:
physDev->pen.dash_len = min(elp->elpNumEntries, MAX_DASHLEN); physDev->pen.dash_len = get_user_dashes( physDev->pen.dashes,
for(i = 0; i < physDev->pen.dash_len ; i++) elp->elpStyleEntry, elp->elpNumEntries );
physDev->pen.dashes[i] = min(elp->elpStyleEntry[i], 255);
break; break;
default: default:
physDev->pen.dash_len = 0; physDev->pen.dash_len = 0;
break; break;
} }
if(physDev->pen.ext && physDev->pen.dash_len && if(physDev->pen.ext && physDev->pen.dash_len && physDev->pen.width &&
(logpen.lopnStyle & PS_STYLE_MASK) != PS_ALTERNATE) (logpen.lopnStyle & PS_STYLE_MASK) != PS_USERSTYLE &&
(logpen.lopnStyle & PS_STYLE_MASK) != PS_ALTERNATE)
for(i = 0; i < physDev->pen.dash_len; i++) for(i = 0; i < physDev->pen.dash_len; i++)
physDev->pen.dashes[i] *= (physDev->pen.width ? physDev->pen.width : 1); physDev->pen.dashes[i] = min( physDev->pen.dashes[i] * physDev->pen.width, 255 );
HeapFree( GetProcessHeap(), 0, elp ); HeapFree( GetProcessHeap(), 0, elp );