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