rom/intuition/setpointerbounds.c

   1 /*
   2     Copyright © 1995-2007, The AROS Development Team. All rights reserved.
   3
   4 */
   5
   6 #include "intuition_intern.h"
   7 #include "inputhandler.h"
   8
   9 AROS_LH4(ULONG, SetPointerBounds,
  10          /*  SYNOPSIS */
  11          AROS_LHA(struct Screen    *, screen  , A0),
  12          AROS_LHA(struct Rectangle *, rect    , A1),
  13          AROS_LHA(ULONG             , reserved, D0),
  14          AROS_LHA(struct TagItem   *, tags    , A2),
  15          /*  LOCATION */
  16          struct IntuitionBase *, IntuitionBase, 160, Intuition)
  17
  18 {
  19     AROS_LIBFUNC_INIT
  20
  21     struct IIHData *iihd = (struct IIHData *)GetPrivIBase(IntuitionBase)->InputHandler->is_Data;
  22
  23     (void)screen;
  24     (void)reserved;
  25
  26     ObtainSemaphore(&GetPrivIBase(IntuitionBase)->InputHandlerLock);
  27     if (!iihd->MouseBoundsActiveFlag)
  28     {
  29         if (rect)
  30         {
  31             iihd->MouseBoundsActiveFlag = TRUE;
  32             iihd->MouseBoundsKillTimer  = 5; /* 1 sec */
  33             iihd->MouseBoundsLeft       = rect->MinX;
  34             iihd->MouseBoundsTop        = rect->MinY;
  35             iihd->MouseBoundsRight      = rect->MaxX;
  36             iihd->MouseBoundsBottom     = rect->MaxY;
  37         }
  38     }
  39     else if (iihd->MouseBoundsKillTimer)
  40     {
  41         if (rect)
  42         {
  43             /* Reset timer */
  44             iihd->MouseBoundsKillTimer  = 5; /* 1 sec */
  45             iihd->MouseBoundsLeft       = rect->MinX;
  46             iihd->MouseBoundsTop        = rect->MinY;
  47             iihd->MouseBoundsRight      = rect->MaxX;
  48             iihd->MouseBoundsBottom     = rect->MaxY;
  49         }
  50         else
  51         {
  52             iihd->MouseBoundsKillTimer = 0;
  53             iihd->MouseBoundsActiveFlag = FALSE;
  54         }
  55     }
  56
  57     ReleaseSemaphore(&GetPrivIBase(IntuitionBase)->InputHandlerLock);
  58
  59     return 0;
  60
  61     AROS_LIBFUNC_EXIT
  62 }