rom/intuition/showtitle.c

   1 /*
   2     Copyright © 1995-2013, 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/layers.h>
   8 #include "intuition_intern.h"
   9 #include "inputhandler_actions.h"
  10
  11 struct ShowTitleActionMsg
  12 {
  13     struct IntuiActionMsg    msg;
  14     struct Screen           *screen;
  15     BOOL                     showit;
  16 };
  17
  18 static VOID int_showtitle(struct ShowTitleActionMsg *msg,
  19                           struct IntuitionBase *IntuitionBase);
  20
  21 /*****************************************************************************
  22
  23     NAME */
  24 #include <proto/intuition.h>
  25
  26         AROS_LH2(void, ShowTitle,
  27
  28 /*  SYNOPSIS */
  29         AROS_LHA(struct Screen *, screen, A0),
  30         AROS_LHA(BOOL           , ShowIt, D0),
  31
  32 /*  LOCATION */
  33         struct IntuitionBase *, IntuitionBase, 47, Intuition)
  34
  35 /*  FUNCTION
  36         Modify SHOWTITLE flag of the screen and refresh the screen and
  37         its windows.
  38
  39         If ShowIt is TRUE the screen's title bar will be shown in front of
  40         WFLG_BACKDROP windows. A value of FALSE will bring the title bar
  41         behind all windows.
  42
  43     INPUTS
  44
  45     RESULT
  46         None.
  47
  48     NOTES
  49         The default of the SHOWTITLE flag for new screens is TRUE.
  50
  51     EXAMPLE
  52
  53     BUGS
  54
  55     SEE ALSO
  56
  57     INTERNALS
  58
  59 *****************************************************************************/
  60 {
  61     AROS_LIBFUNC_INIT
  62
  63     if (screen && screen->BarLayer)
  64     {
  65         struct ShowTitleActionMsg msg;
  66
  67     #ifdef SKINS
  68         if (GetPrivScreen(screen)->SpecialFlags & (SF_InvisibleBar|SF_AppearingBar)) return;
  69     #endif
  70
  71         msg.screen = screen;
  72         msg.showit = ShowIt;
  73         DoASyncAction((APTR)int_showtitle, &msg.msg, sizeof(msg), IntuitionBase);
  74     }
  75
  76     AROS_LIBFUNC_EXIT
  77
  78 } /* ShowTitle */
  79
  80
  81 static VOID int_showtitle(struct ShowTitleActionMsg *msg,
  82                           struct IntuitionBase *IntuitionBase)
  83 {
  84     struct LayersBase *LayersBase = GetPrivIBase(IntuitionBase)->LayersBase;
  85     struct Screen *screen = msg->screen;
  86
  87     if (!msg->showit)
  88     {
  89         if (screen->Flags & SHOWTITLE)
  90         {
  91             LOCK_REFRESH(screen);
  92
  93             BehindLayer(0, screen->BarLayer);
  94
  95             AROS_ATOMIC_AND(screen->Flags, ~SHOWTITLE);
  96
  97             CheckLayers(screen, IntuitionBase);
  98
  99             UNLOCK_REFRESH(screen);
 100         }
 101     }
 102     else
 103     {
 104         if (!(screen->Flags & SHOWTITLE))
 105         {
 106             LOCK_REFRESH(screen);
 107
 108             UpfrontLayer(0, screen->BarLayer);
 109
 110             AROS_ATOMIC_OR(screen->Flags, SHOWTITLE);
 111
 112             CheckLayers(screen, IntuitionBase);
 113
 114             UNLOCK_REFRESH(screen);
 115         }
 116     }
 117 }