fpc/packages/amunits/src/coreunits/diskfont.pas

{
    This file is part of the Free Pascal run time library.

    A file in Amiga system run time library.
    Copyright (c) 1998-2003 by Nils Sjoholm
    member of the Amiga RTL development team.

    See the file COPYING.FPC, included in this distribution,
    for details about the copyright.

    This program 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.

 **********************************************************************}
{
    History:

    Added the defines use_amiga_smartlink and
    use_auto_openlib. Implemented autoopening
    of the library.
    13 Jan 2003.

    Update for AmigaOS 3.9.
       FUNCTION GetDiskFontCtrl
       PROCEDURE SetDiskFontCtrlA
    Varargs for SetDiskFontCtrl is in
    systemvartags.
    Changed startup for library.
    01 Feb 2003.

    Changed cardinal > longword.
    09 Feb 2003.

    [email protected] Nils Sjoholm
}
{$PACKRECORDS 2}

{$IFNDEF FPC_DOTTEDUNITS}
unit diskfont;
{$ENDIF FPC_DOTTEDUNITS}

INTERFACE

{$IFDEF FPC_DOTTEDUNITS}
uses Amiga.Core.Exec, Amiga.Core.Agraphics,Amiga.Core.Utility;
{$ELSE FPC_DOTTEDUNITS}
uses exec, agraphics,utility;
{$ENDIF FPC_DOTTEDUNITS}

Const

    MAXFONTPATH         = 256;

Type

    pFontContents = ^tFontContents;
    tFontContents = record
        fc_FileName     : Array [0..MAXFONTPATH-1] of AnsiChar;
        fc_YSize        : Word;
        fc_Style        : Byte;
        fc_Flags        : Byte;
    end;


   pTFontContents = ^tTFontContents;
   tTFontContents = record
    tfc_FileName  : Array[0..MAXFONTPATH-3] of AnsiChar;
    tfc_TagCount  : Word;

    tfc_YSize     : Word;
    tfc_Style,
    tfc_Flags     : Byte;
   END;


Const

    FCH_ID              = $0f00;
    TFCH_ID             = $0f02;
    OFCH_ID             = $0f03;



Type

    pFontContentsHeader = ^tFontContentsHeader;
    tFontContentsHeader = record
        fch_FileID      : Word;
        fch_NumEntries  : Word;
    end;

Const

    DFH_ID              = $0f80;
    MAXFONTNAME         = 32;

Type

    pDiskFontHeader = ^tDiskFontHeader;
    tDiskFontHeader = record
        dfh_DF          : tNode;
        dfh_FileID      : Word;
        dfh_Revision    : Word;
        dfh_Segment     : Longint;
        dfh_Name        : Array [0..MAXFONTNAME-1] of AnsiChar;
        dfh_TF          : tTextFont;
    end;

Const

    AFB_MEMORY          = 0;
    AFF_MEMORY          = 1;
    AFB_DISK            = 1;
    AFF_DISK            = 2;
    AFB_SCALED          = 2;
    AFF_SCALED          = $0004;
    AFB_BITMAP          = 3;
    AFF_BITMAP          = $0008;
    AFB_TAGGED          = 16;
    AFF_TAGGED          = $10000;


Type

    pAvailFonts = ^tAvailFonts;
    tAvailFonts = record
        af_Type         : Word;
        af_Attr         : tTextAttr;
    end;

    pTAvailFonts = ^tTAvailFonts;
    tTAvailFonts = record
        taf_Type        : Word;
        taf_Attr        : tTTextAttr;
    END;

    pAvailFontsHeader = ^tAvailFontsHeader;
    tAvailFontsHeader = record
        afh_NumEntries  : Word;
    end;

const
    DISKFONTNAME : PAnsiChar = 'diskfont.library';

VAR DiskfontBase : pLibrary = nil;

FUNCTION AvailFonts(buffer : PAnsiChar location 'a0'; bufBytes : LONGINT location 'd0'; flags : LONGINT location 'd1') : LONGINT; syscall DiskfontBase 036;
PROCEDURE DisposeFontContents(fontContentsHeader : pFontContentsHeader location 'a1'); syscall DiskfontBase 048;
FUNCTION NewFontContents(fontsLock : BPTR location 'a0'; fontName : PAnsiChar location 'a1') : pFontContentsHeader; syscall DiskfontBase 042;
FUNCTION NewScaledDiskFont(sourceFont : pTextFont location 'a0'; destTextAttr : pTextAttr location 'a1') : pDiskFontHeader; syscall DiskfontBase 054;
FUNCTION OpenDiskFont(textAttr : pTextAttr location 'a0') : pTextFont; syscall DiskfontBase 030;
FUNCTION GetDiskFontCtrl(tagid : LONGINT location 'd0') : LONGINT; syscall DiskfontBase 060;
PROCEDURE SetDiskFontCtrlA(taglist : pTagItem location 'a0'); syscall DiskfontBase 066;

IMPLEMENTATION

const
    { Change VERSION and LIBVERSION to proper values }
    VERSION : string[2] = '0';
    LIBVERSION : longword = 0;

initialization
  DiskfontBase := OpenLibrary(DISKFONTNAME,LIBVERSION);
finalization
  if Assigned(DiskfontBase) then
    CloseLibrary(DiskfontBase);
END. (* UNIT DISKFONT *)