dlls/wineps.drv/pen.c

   1 /*
   2  *      PostScript pen handling
   3  *
   4  *      Copyright 1998  Huw D M Davies
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <stdarg.h>
  22
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "wingdi.h"
  26 #include "psdrv.h"
  27 #include "wine/debug.h"
  28
  29 WINE_DEFAULT_DEBUG_CHANNEL(psdrv);
  30
  31 static const DWORD PEN_dash[]       = { 50, 30 };                 /* -----   -----   -----  */
  32 static const DWORD PEN_dot[]        = { 20 };                     /* --  --  --  --  --  -- */
  33 static const DWORD PEN_dashdot[]    = { 40, 30, 20, 30 };         /* ----   --   ----   --  */
  34 static const DWORD PEN_dashdotdot[] = { 40, 20, 20, 20, 20, 20 }; /* ----  --  --  ----  */
  35 static const DWORD PEN_alternate[]  = { 1 };
  36
  37 /***********************************************************************
  38  *           SelectPen
  39  */
  40 HPEN PSDRV_SelectPen( print_ctx *ctx, HPEN hpen, const struct ps_brush_pattern *pattern )
  41 {
  42     LOGPEN logpen;
  43     EXTLOGPEN *elp = NULL;
  44
  45     if (!GetObjectW( hpen, sizeof(logpen), &logpen ))
  46     {
  47         /* must be an extended pen */
  48         INT size = GetObjectW( hpen, 0, NULL );
  49
  50         if (!size) return 0;
  51
  52         elp = HeapAlloc( GetProcessHeap(), 0, size );
  53
  54         GetObjectW( hpen, size, elp );
  55         /* FIXME: add support for user style pens */
  56         logpen.lopnStyle = elp->elpPenStyle;
  57         logpen.lopnWidth.x = elp->elpWidth;
  58         logpen.lopnWidth.y = 0;
  59         logpen.lopnColor = elp->elpColor;
  60     }
  61
  62     TRACE("hpen = %p colour = %08lx\n", hpen, logpen.lopnColor);
  63
  64     ctx->pen.width = logpen.lopnWidth.x;
  65     if ((logpen.lopnStyle & PS_GEOMETRIC) || (ctx->pen.width > 1))
  66     {
  67         ctx->pen.width = PSDRV_XWStoDS( ctx, ctx->pen.width );
  68         if(ctx->pen.width < 0) ctx->pen.width = -ctx->pen.width;
  69     }
  70     if (hpen == GetStockObject( DC_PEN ))
  71         logpen.lopnColor = GetDCPenColor( ctx->hdc );
  72
  73     switch (logpen.lopnStyle & PS_JOIN_MASK)
  74     {
  75     default:
  76     case PS_JOIN_ROUND: ctx->pen.join = 1; break;
  77     case PS_JOIN_BEVEL: ctx->pen.join = 2; break;
  78     case PS_JOIN_MITER: ctx->pen.join = 0; break;
  79     }
  80
  81     switch (logpen.lopnStyle & PS_ENDCAP_MASK)
  82     {
  83     default:
  84     case PS_ENDCAP_ROUND:  ctx->pen.endcap = 1; break;
  85     case PS_ENDCAP_SQUARE: ctx->pen.endcap = 2; break;
  86     case PS_ENDCAP_FLAT:   ctx->pen.endcap = 0; break;
  87     }
  88
  89     PSDRV_CreateColor(ctx, &ctx->pen.color, logpen.lopnColor);
  90     ctx->pen.style = logpen.lopnStyle & PS_STYLE_MASK;
  91
  92     switch(ctx->pen.style) {
  93     case PS_DASH:
  94         memcpy( ctx->pen.dash, PEN_dash, sizeof(PEN_dash) );
  95         ctx->pen.dash_len = ARRAY_SIZE( PEN_dash );
  96         break;
  97
  98     case PS_DOT:
  99         memcpy( ctx->pen.dash, PEN_dot, sizeof(PEN_dot) );
 100         ctx->pen.dash_len = ARRAY_SIZE( PEN_dot );
 101         break;
 102
 103     case PS_DASHDOT:
 104         memcpy( ctx->pen.dash, PEN_dashdot, sizeof(PEN_dashdot) );
 105         ctx->pen.dash_len = ARRAY_SIZE( PEN_dashdot );
 106         break;
 107
 108     case PS_DASHDOTDOT:
 109         memcpy( ctx->pen.dash, PEN_dashdotdot, sizeof(PEN_dashdotdot) );
 110         ctx->pen.dash_len = ARRAY_SIZE( PEN_dashdotdot );
 111         break;
 112
 113     case PS_ALTERNATE:
 114         memcpy( ctx->pen.dash, PEN_alternate, sizeof(PEN_alternate) );
 115         ctx->pen.dash_len = ARRAY_SIZE( PEN_alternate );
 116         break;
 117
 118     case PS_USERSTYLE:
 119         ctx->pen.dash_len = min( elp->elpNumEntries, MAX_DASHLEN );
 120         memcpy( ctx->pen.dash, elp->elpStyleEntry, ctx->pen.dash_len * sizeof(DWORD) );
 121         break;
 122
 123     default:
 124         ctx->pen.dash_len = 0;
 125     }
 126
 127     if ((ctx->pen.width > 1) && ctx->pen.dash_len &&
 128         ctx->pen.style != PS_USERSTYLE && ctx->pen.style != PS_ALTERNATE)
 129     {
 130         ctx->pen.style = PS_SOLID;
 131         ctx->pen.dash_len = 0;
 132     }
 133
 134     HeapFree( GetProcessHeap(), 0, elp );
 135     ctx->pen.set = FALSE;
 136     return hpen;
 137 }
 138
 139
 140 /***********************************************************************
 141  *           SetDCPenColor
 142  */
 143 COLORREF PSDRV_SetDCPenColor( print_ctx *ctx, COLORREF color )
 144 {
 145     if (GetCurrentObject( ctx->hdc, OBJ_PEN ) == GetStockObject( DC_PEN ))
 146         PSDRV_CreateColor( ctx, &ctx->pen.color, color );
 147     return color;
 148 }
 149
 150
 151 /**********************************************************************
 152  *
 153  *      PSDRV_SetPen
 154  *
 155  */
 156 BOOL PSDRV_SetPen( print_ctx *ctx )
 157 {
 158     if (ctx->pen.style != PS_NULL) {
 159         PSDRV_WriteSetColor(ctx, &ctx->pen.color);
 160
 161         if(!ctx->pen.set) {
 162             PSDRV_WriteSetPen(ctx);
 163             ctx->pen.set = TRUE;
 164         }
 165     }
 166
 167     return TRUE;
 168 }