mui/classes/thebar/mcc/button/library.c

   1 /***************************************************************************
   2
   3  TheBar.mcc - Next Generation Toolbar MUI Custom Class
   4  Copyright (C) 2003-2005 Alfonso Ranieri
   5  Copyright (C) 2005-2013 by TheBar.mcc Open Source Team
   6
   7  This library is free software; you can redistribute it and/or
   8  modify it under the terms of the GNU Lesser General Public
   9  License as published by the Free Software Foundation; either
  10  version 2.1 of the License, or (at your option) any later version.
  11
  12  This library is distributed in the hope that it will be useful,
  13  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  Lesser General Public License for more details.
  16
  17  TheBar class Support Site:  http://www.sf.net/projects/thebar
  18
  19  $Id$
  20
  21 ***************************************************************************/
  22
  23 #include "class.h"
  24 #include "private.h"
  25 #include "SetPatch.h"
  26 #include "version.h"
  27
  28 /******************************************************************************/
  29 /* include the minimal startup code to be able to start the class from a      */
  30 /* shell without crashing the system                                          */
  31 /******************************************************************************/
  32 #include "shellstart.c"
  33
  34 #define VERSION       LIB_VERSION
  35 #define REVISION      LIB_REVISION
  36
  37 #define SUPERCLASS    MUIC_Area
  38 #define CLASS         MUIC_TheButton
  39
  40 #define INSTDATA      InstData
  41
  42 #define USERLIBID     CLASS " " LIB_REV_STRING " [" SYSTEMSHORT "/" CPU "] (" LIB_DATE ") " LIB_COPYRIGHT
  43 #define MASTERVERSION 19
  44
  45 #define CLASSINIT
  46 #define CLASSEXPUNGE
  47
  48 #define USEDCLASSES used_mccs
  49 static const char *used_mccs[] = { "TheBar.mcc", "TheBarVirt.mcc", NULL };
  50
  51 #define USEDCLASSESP used_mcps
  52 static const char *used_mcps[] = { "TheBar.mcp", NULL };
  53
  54 #define MIN_STACKSIZE 8192
  55
  56 /******************************************************************************/
  57
  58 struct Library *DataTypesBase = NULL;
  59 struct Library *CyberGfxBase = NULL;
  60 struct Library *DiskfontBase = NULL;
  61 struct Library *PictureDTBase = NULL;
  62
  63 #if defined(__amigaos4__)
  64 struct DataTypesIFace *IDataTypes = NULL;
  65 struct CyberGfxIFace *ICyberGfx = NULL;
  66 struct DiskfontIFace *IDiskfont = NULL;
  67 #endif
  68
  69 ULONG lib_flags = 0;
  70 ULONG lib_alpha = 0xffffffff;
  71
  72 /******************************************************************************/
  73
  74 static BOOL ClassInit(UNUSED struct Library *base);
  75 static BOOL ClassExpunge(UNUSED struct Library *base);
  76
  77 /******************************************************************************/
  78
  79 #include <mccinit.c>
  80
  81 /******************************************************************************/
  82
  83 static BOOL ClassInit(UNUSED struct Library *base)
  84 {
  85     ENTER();
  86
  87     if ((DataTypesBase = OpenLibrary("datatypes.library", 37)) &&
  88         GETINTERFACE(IDataTypes, struct DataTypesIFace *, DataTypesBase))
  89     {
  90         if ((DiskfontBase = OpenLibrary("diskfont.library", 37)) &&
  91             GETINTERFACE(IDiskfont, struct DiskfontIFace *, DiskfontBase))
  92         {
  93             if(CreateSharedPool() == TRUE)
  94             {
  95                 // we open the cybgraphics.library but without failing if
  96                 // it doesn't exist
  97                 if ((CyberGfxBase = OpenLibrary("cybergraphics.library", 41)) &&
  98                    GETINTERFACE(ICyberGfx, struct CyberGfxIFace *, CyberGfxBase))
  99                 { }
 100
 101                 PictureDTBase = OpenLibrary("picture.datatype",0);
 102
 103                 // check the version of MUI)
 104                 if (MUIMasterBase->lib_Version>=20)
 105                 {
 106                     setFlag(lib_flags,BASEFLG_MUI20);
 107
 108                     if (MUIMasterBase->lib_Version>20 || MUIMasterBase->lib_Revision>=5341)
 109                         setFlag(lib_flags,BASEFLG_MUI4);
 110                 }
 111
 112                 GetSetPatchVersion();
 113
 114                 setFlag(lib_flags, BASEFLG_Init);
 115
 116                 RETURN(TRUE);
 117                 return(TRUE);
 118             }
 119         }
 120     }
 121
 122     ClassExpunge(base);
 123
 124     RETURN(FALSE);
 125     return(FALSE);
 126 }
 127
 128 /******************************************************************************/
 129
 130 static BOOL ClassExpunge(UNUSED struct Library *base)
 131 {
 132     ENTER();
 133
 134     DeleteSharedPool();
 135
 136     if (PictureDTBase)
 137     {
 138         CloseLibrary(PictureDTBase);
 139         PictureDTBase = NULL;
 140     }
 141
 142     if (CyberGfxBase)
 143     {
 144         DROPINTERFACE(ICyberGfx);
 145         CloseLibrary(CyberGfxBase);
 146         CyberGfxBase = NULL;
 147     }
 148
 149     if (DiskfontBase)
 150     {
 151         DROPINTERFACE(IDiskfont);
 152         CloseLibrary(DiskfontBase);
 153         DiskfontBase = NULL;
 154     }
 155
 156     if (DataTypesBase)
 157     {
 158         DROPINTERFACE(IDataTypes);
 159         CloseLibrary(DataTypesBase);
 160         DataTypesBase = NULL;
 161     }
 162
 163     clearFlag(lib_flags, BASEFLG_Init|BASEFLG_MUI20|BASEFLG_MUI4);
 164
 165     RETURN(TRUE);
 166     return(TRUE);
 167 }
 168
 169 /******************************************************************************/