rom/graphics/setsoftstyle.c

   1 /*
   2     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: Graphics function SetSoftStyle()
   6     Lang: English
   7 */
   8
   9 #include "graphics_intern.h"
  10
  11 /*****************************************************************************
  12
  13     NAME */
  14 #include <graphics/rastport.h>
  15 #include <proto/graphics.h>
  16
  17         AROS_LH3(ULONG, SetSoftStyle,
  18
  19 /*  SYNOPSIS */
  20         AROS_LHA(struct RastPort *, rp    , A1),
  21         AROS_LHA(ULONG            , style , D0),
  22         AROS_LHA(ULONG            , enable, D1),
  23
  24 /*  LOCATION */
  25         struct GfxBase *, GfxBase, 15, Graphics)
  26
  27 /*  FUNCTION
  28
  29     Set the style of the current font. Only those bits set in 'enable' are
  30     affected.
  31
  32     INPUTS
  33
  34     rp     --  pointer to rastport
  35     style  --  the style the font should have
  36     enable --  mask for style bits
  37
  38     RESULT
  39
  40     The style bits used hereinafter (the font may not support all the styles
  41     you wish to set). Note that this is possibly more style bits than you
  42     affected by calling SetSoftStyle() as a font may have intrinsic style
  43     bits set.
  44
  45     NOTES
  46
  47     EXAMPLE
  48
  49     BUGS
  50
  51     SEE ALSO
  52
  53     AskSoftStyle(), graphics/text.h
  54
  55     INTERNALS
  56
  57     HISTORY
  58
  59     24.7.98  SDuvan  implemented
  60
  61 *****************************************************************************/
  62 {
  63     AROS_LIBFUNC_INIT
  64
  65     ULONG  realEnable = enable & AskSoftStyle(rp);
  66
  67     rp->AlgoStyle = ((~realEnable & rp->AlgoStyle) | (realEnable & style));
  68
  69     return rp->AlgoStyle | rp->Font->tf_Style;
  70
  71     AROS_LIBFUNC_EXIT
  72 } /* SetSoftStyle */