rom/intuition/showtitle.c

   1 /*
   2     Copyright © 1995-2011, 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     If ShowIt is TRUE the screen's title bar will be shown in front of
  39     WFLG_BACKDROP windows. A value of FALSE will bring the title bar
  40     behind all windows.
  41
  42     INPUTS
  43
  44     RESULT
  45     None.
  46
  47     NOTES
  48     The default of the SHOWTITLE flag for new screens is TRUE.
  49
  50     EXAMPLE
  51
  52     BUGS
  53
  54     SEE ALSO
  55
  56     INTERNALS
  57
  58     HISTORY
  59
  60 *****************************************************************************/
  61 {
  62     AROS_LIBFUNC_INIT
  63
  64     if (screen && screen->BarLayer)
  65     {
  66         struct ShowTitleActionMsg msg;
  67
  68     #ifdef SKINS
  69         if (GetPrivScreen(screen)->SpecialFlags & (SF_InvisibleBar|SF_AppearingBar)) return;
  70     #endif
  71
  72         msg.screen = screen;
  73         msg.showit = ShowIt;
  74         DoASyncAction((APTR)int_showtitle, &msg.msg, sizeof(msg), IntuitionBase);
  75     }
  76
  77     AROS_LIBFUNC_EXIT
  78
  79 } /* ShowTitle */
  80
  81
  82 static VOID int_showtitle(struct ShowTitleActionMsg *msg,
  83                           struct IntuitionBase *IntuitionBase)
  84 {
  85     struct LayersBase *LayersBase = GetPrivIBase(IntuitionBase)->LayersBase;
  86     struct Screen *screen = msg->screen;
  87
  88     if (!msg->showit)
  89     {
  90         if (screen->Flags & SHOWTITLE)
  91         {
  92             LOCK_REFRESH(screen);
  93
  94             BehindLayer(0, screen->BarLayer);
  95
  96             AROS_ATOMIC_AND(screen->Flags, ~SHOWTITLE);
  97
  98             CheckLayers(screen, IntuitionBase);
  99
 100             UNLOCK_REFRESH(screen);
 101         }
 102     }
 103     else
 104     {
 105         if (!(screen->Flags & SHOWTITLE))
 106         {
 107             LOCK_REFRESH(screen);
 108
 109             UpfrontLayer(0, screen->BarLayer);
 110
 111             AROS_ATOMIC_OR(screen->Flags, SHOWTITLE);
 112
 113             CheckLayers(screen, IntuitionBase);
 114
 115             UNLOCK_REFRESH(screen);
 116         }
 117     }
 118 }