dlls/gdiplus/pen.c

   1 /*
   2  * Copyright (C) 2007 Google (Evan Stade)
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include <stdarg.h>
  20
  21 #include "windef.h"
  22 #include "winbase.h"
  23 #include "wingdi.h"
  24 #include "gdiplus.h"
  25 #include "gdiplus_private.h"
  26 #include "wine/debug.h"
  27
  28 WINE_DEFAULT_DEBUG_CHANNEL(gdiplus);
  29
  30 static DWORD gdip_to_gdi_join(GpLineJoin join)
  31 {
  32     switch(join){
  33         case LineJoinRound:
  34             return PS_JOIN_ROUND;
  35         case LineJoinBevel:
  36             return PS_JOIN_BEVEL;
  37         case LineJoinMiter:
  38         case LineJoinMiterClipped:
  39             return PS_JOIN_MITER;
  40         default:
  41             ERR("Not a member of GpLineJoin enumeration\n");
  42             return 0;
  43     }
  44 }
  45
  46 GpStatus WINGDIPAPI GdipCreatePen1(ARGB color, FLOAT width, GpUnit unit,
  47     GpPen **pen)
  48 {
  49     LOGBRUSH lb;
  50     GpPen *gp_pen;
  51
  52     if(!pen)
  53         return InvalidParameter;
  54
  55     gp_pen = GdipAlloc(sizeof(GpPen));
  56     if(!gp_pen)    return OutOfMemory;
  57
  58     gp_pen->style = GP_DEFAULT_PENSTYLE;
  59     gp_pen->color = ARGB2COLORREF(color);
  60     gp_pen->width = width;
  61     gp_pen->unit = unit;
  62     gp_pen->endcap = LineCapFlat;
  63     gp_pen->join = LineJoinMiter;
  64     gp_pen->miterlimit = 10.0;
  65
  66     /* FIXME: Currently only solid lines supported. */
  67     lb.lbStyle = BS_SOLID;
  68     lb.lbColor = gp_pen->color;
  69     lb.lbHatch = 0;
  70
  71     if((gp_pen->unit == UnitWorld) || (gp_pen->unit == UnitPixel)) {
  72         gp_pen->gdipen = ExtCreatePen(gp_pen->style, (INT) gp_pen->width, &lb,
  73             0, NULL);
  74     } else {
  75         FIXME("UnitWorld, UnitPixel only supported units\n");
  76         GdipFree(gp_pen);
  77         return NotImplemented;
  78     }
  79
  80     *pen = gp_pen;
  81
  82     return Ok;
  83 }
  84
  85 GpStatus WINGDIPAPI GdipDeletePen(GpPen *pen)
  86 {
  87     if(!pen)    return InvalidParameter;
  88     DeleteObject(pen->gdipen);
  89     GdipFree(pen);
  90
  91     return Ok;
  92 }
  93
  94 GpStatus WINGDIPAPI GdipSetPenEndCap(GpPen *pen, GpLineCap cap)
  95 {
  96     if(!pen)    return InvalidParameter;
  97
  98     pen->endcap = cap;
  99
 100     return Ok;
 101 }
 102
 103 /* FIXME: startcap, dashcap not used. */
 104 GpStatus WINGDIPAPI GdipSetPenLineCap197819(GpPen *pen, GpLineCap start,
 105     GpLineCap end, GpDashCap dash)
 106 {
 107     if(!pen)
 108         return InvalidParameter;
 109
 110     pen->startcap = start;
 111     pen->endcap = end;
 112     pen->dashcap = dash;
 113
 114     return Ok;
 115 }
 116
 117 /* FIXME: Miter line joins behave a bit differently than they do in windows.
 118  * Both kinds of miter joins clip if the angle is less than 11 degrees. */
 119 GpStatus WINGDIPAPI GdipSetPenLineJoin(GpPen *pen, GpLineJoin join)
 120 {
 121     LOGBRUSH lb;
 122
 123     if(!pen)    return InvalidParameter;
 124
 125     DeleteObject(pen->gdipen);
 126     pen->join = join;
 127     pen->style &= ~(PS_JOIN_ROUND | PS_JOIN_BEVEL | PS_JOIN_MITER);
 128     pen->style |= gdip_to_gdi_join(join);
 129
 130     lb.lbStyle = BS_SOLID;
 131     lb.lbColor = pen->color;
 132     lb.lbHatch = 0;
 133
 134     pen->gdipen = ExtCreatePen(pen->style, (INT) pen->width, &lb, 0, NULL);
 135
 136     return Ok;
 137 }
 138
 139 GpStatus WINGDIPAPI GdipSetPenMiterLimit(GpPen *pen, REAL limit)
 140 {
 141     if(!pen)
 142         return InvalidParameter;
 143
 144     pen->miterlimit = limit;
 145
 146     return Ok;
 147 }