wine/graphics/x11drv/pen.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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "config.h"

#include "x11drv.h"
#include "wine/debug.h"

WINE_DEFAULT_DEBUG_CHANNEL(x11drv);

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 };

/***********************************************************************
 *           X11DRV_SelectPen   (X11DRV.@)
 */
HPEN X11DRV_SelectPen( X11DRV_PDEVICE *physDev, HPEN hpen )
{
    LOGPEN logpen;
    DC *dc = physDev->dc;

    if (!GetObjectA( hpen, sizeof(logpen), &logpen )) return 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 = GDI_ROUND((FLOAT)logpen.lopnWidth.x *
                                   dc->xformWorld2Vport.eM11 * 0.5);
    if (physDev->pen.width < 0) physDev->pen.width = -physDev->pen.width;
    if (physDev->pen.width == 1) physDev->pen.width = 0;  /* Faster */
    physDev->pen.pixel = X11DRV_PALETTE_ToPhysical( physDev, logpen.lopnColor );
    switch(logpen.lopnStyle & PS_STYLE_MASK)
    {
      case PS_DASH:
	physDev->pen.dashes = (char *)PEN_dash;
	physDev->pen.dash_len = sizeof(PEN_dash)/sizeof(*PEN_dash);
	break;
      case PS_DOT:
	physDev->pen.dashes = (char *)PEN_dot;
	physDev->pen.dash_len = sizeof(PEN_dot)/sizeof(*PEN_dot);
	break;
      case PS_DASHDOT:
	physDev->pen.dashes = (char *)PEN_dashdot;
	physDev->pen.dash_len = sizeof(PEN_dashdot)/sizeof(*PEN_dashdot);
	break;
      case PS_DASHDOTDOT:
	physDev->pen.dashes = (char *)PEN_dashdotdot;
	physDev->pen.dash_len = sizeof(PEN_dashdotdot)/sizeof(*PEN_dashdotdot);
	break;
      case PS_ALTERNATE:
	physDev->pen.dashes = (char *)PEN_alternate;
	physDev->pen.dash_len = sizeof(PEN_alternate)/sizeof(*PEN_alternate);
	break;
      case PS_USERSTYLE:
        FIXME("PS_USERSTYLE is not supported\n");
	break;
    }
    return hpen;
}