rom/intuition/changedecorationa.c

   1 /*
   2     Copyright  1995-2007, The AROS Development Team. All rights reserved.
   3     Copyright  2001-2003, The MorphOS Development Team. All Rights Reserved.
   4     $Id$
   5 */
   6
   7 #include <proto/utility.h>
   8 #include <intuition/windecorclass.h>
   9 #include <intuition/scrdecorclass.h>
  10 #include <intuition/screens.h>
  11
  12 #include <proto/dos.h>
  13
  14 #include "intuition_intern.h"
  15 #include "inputhandler_actions.h"
  16
  17 /*****************************************************************************
  18
  19     NAME */
  20 #include <proto/intuition.h>
  21
  22 struct RemoveDecoratorMsg {
  23     struct IntuiActionMsg    msg;
  24     struct NewDecorator     *nd;
  25 };
  26
  27 static VOID int_removedecorator(struct RemoveDecoratorMsg *m, struct IntuitionBase *IntuitionBase);
  28
  29     AROS_LH2(void, ChangeDecoration,
  30
  31 /*  SYNOPSIS */
  32          AROS_LHA(ULONG, ID, D0),
  33          AROS_LHA(struct NewDecorator *, nd, A0),
  34
  35 /*  LOCATION */
  36          struct IntuitionBase *, IntuitionBase, 153, Intuition)
  37
  38 /*  FUNCTION
  39     Setup a new decorator for intuition windows, screens or menus.
  40
  41     INPUTS
  42     ID - identifier for decorations, see screens.h
  43     nd -  an ID dependent NewDecorator structure
  44
  45     RESULT
  46     void - this Function cannot fail,
  47
  48     NOTES
  49     The function fails if screens are open, use ChangeIntuition() to notify applications that
  50     the UI will be changed.
  51
  52     EXAMPLE
  53
  54     BUGS
  55
  56     SEE ALSO
  57         intuition/screens.h
  58
  59     INTERNALS
  60
  61 *****************************************************************************/
  62 {
  63     AROS_LIBFUNC_INIT
  64
  65         ObtainSemaphore(&((struct IntIntuitionBase *)(IntuitionBase))->ScrDecorSem);
  66         if (ID == DECORATION_SET)
  67         {
  68
  69             {
  70                 /* if the current decorator isn´t used remove it */
  71
  72                 struct NewDecorator * tnd;
  73                 tnd = ((struct IntIntuitionBase *)(IntuitionBase))->Decorator;
  74                 if ((tnd != NULL) && (tnd != nd))
  75                 {
  76                     if ((tnd->nd_cnt == 0) && (tnd->nd_Port != NULL))
  77                     {
  78                         struct RemoveDecoratorMsg msg;
  79                         msg.nd = tnd;
  80                         DoASyncAction((APTR)int_removedecorator, &msg.msg, sizeof(msg), IntuitionBase);
  81                     }
  82                 }
  83             }
  84
  85             nd->nd_cnt = 0;
  86
  87             BOOL global = TRUE;
  88
  89             if (nd->nd_Pattern != NULL)
  90             {
  91                 nd->nd_IntPattern = AllocVec(strlen(nd->nd_Pattern) * 2 + 1, MEMF_CLEAR);
  92                 if (nd->nd_IntPattern) {
  93                     struct DosLibrary    *DOSBase;
  94                     DOSBase = OpenLibrary("dos.library", 40);
  95                     if (DOSBase)
  96                     {
  97                         if (ParsePattern(nd->nd_Pattern, nd->nd_IntPattern, strlen(nd->nd_Pattern) * 2 + 1) == -1) {
  98                             FreeVec(nd->nd_IntPattern);
  99                             nd->nd_IntPattern = NULL;
 100                         }
 101                         else global = FALSE;
 102                         CloseLibrary((struct Library *) DOSBase);
 103                     }
 104                 }
 105             }
 106
 107             Enqueue(&((struct IntIntuitionBase *)(IntuitionBase))->Decorations, nd);
 108
 109             if (global)
 110             {
 111                 ((struct IntIntuitionBase *)(IntuitionBase))->Decorator = nd;
 112                 ((struct IntIntuitionBase *)(IntuitionBase))->WinDecorObj = nd->nd_Window;
 113                 ((struct IntIntuitionBase *)(IntuitionBase))->MenuDecorObj = nd->nd_Menu;
 114                 ((struct IntIntuitionBase *)(IntuitionBase))->ScrDecorObj = nd->nd_Screen;
 115             }
 116         }
 117         ReleaseSemaphore(&((struct IntIntuitionBase *)(IntuitionBase))->ScrDecorSem);
 118
 119     AROS_LIBFUNC_EXIT
 120 }
 121
 122 /* This is called on the input.device's context */
 123
 124 static VOID int_removedecorator(struct RemoveDecoratorMsg *m,
 125                                struct IntuitionBase *IntuitionBase)
 126 {
 127     struct DecoratorMessage msg;
 128     struct MsgPort *port = CreateMsgPort();
 129     if (port)
 130     {
 131         Remove(m->nd);
 132         if (m->nd->nd_IntPattern) FreeVec(m->nd->nd_IntPattern);
 133         msg.dm_Message.mn_ReplyPort = port;
 134         msg.dm_Message.mn_Magic = MAGIC_DECORATOR;
 135         msg.dm_Message.mn_Version = DECORATOR_VERSION;
 136         msg.dm_Class = DM_CLASS_DESTROYDECORATOR;
 137         msg.dm_Code = 0;
 138         msg.dm_Flags = 0;
 139         msg.dm_Object = (IPTR) m->nd;
 140         PutMsg(m->nd->nd_Port, (struct Message *) &msg);
 141         WaitPort(port);
 142         GetMsg(port);
 143         DeleteMsgPort(port);
 144     }
 145 }