workbench/libs/muimaster/mui_removeclipregion.c

   1 /*
   2     Copyright © 2002-2007, The AROS Development Team.
   3     All rights reserved.
   4
   5     $Id$
   6 */
   7
   8 #include <proto/layers.h>
   9 #include <proto/intuition.h>
  10 #include <proto/graphics.h>
  11 #include <proto/muimaster.h>
  12
  13 #include "mui.h"
  14 #include "muimaster_intern.h"
  15
  16 /*****************************************************************************
  17
  18     NAME */
  19         AROS_LH2(VOID, MUI_RemoveClipRegion,
  20
  21 /*  SYNOPSIS */
  22         AROS_LHA(struct MUI_RenderInfo *, mri, A0),
  23         AROS_LHA(APTR, handle, A1),
  24
  25 /*  LOCATION */
  26         struct Library *, MUIMasterBase, 27, MUIMaster)
  27
  28 /*  FUNCTION
  29
  30     INPUTS
  31
  32     RESULT
  33
  34     NOTES
  35
  36         sba: This function frees the region given in MUI_AddClipRegion, but this seems wrong to me.
  37         MUI_AddClipRegion should better duplicate the region.
  38
  39     EXAMPLE
  40
  41     BUGS
  42
  43     SEE ALSO
  44
  45     INTERNALS
  46
  47     HISTORY
  48
  49 *****************************************************************************/
  50 {
  51     AROS_LIBFUNC_INIT
  52
  53     struct Window *w = mri->mri_Window;
  54     struct Layer  *l;
  55
  56     if (handle == (APTR)-1)
  57         return;
  58
  59     if (w != NULL)
  60         l = w->WLayer;
  61     else
  62         l = mri->mri_RastPort->Layer;
  63
  64     if (l == NULL)
  65         return;
  66
  67     mri->mri_rCount--;
  68
  69     if ((w != NULL) && (mri->mri_Flags & MUIMRI_REFRESHMODE))
  70     {
  71         LockLayerInfo(&w->WScreen->LayerInfo);
  72         EndRefresh(w, FALSE);
  73     }
  74
  75 #if 1 /* stegerg: what's this good for */
  76     if ((w != NULL) && !(w->Flags & WFLG_SIMPLE_REFRESH))
  77         LockLayerInfo(&w->WScreen->LayerInfo);
  78 #endif
  79
  80     InstallClipRegion(l, (mri->mri_rCount > 0)
  81         ? mri->mri_rArray[mri->mri_rCount-1] : NULL);
  82
  83 #if 1 /* stegerg: what's this good for */
  84     if ((w != NULL) && !(w->Flags & WFLG_SIMPLE_REFRESH))
  85         UnlockLayerInfo(&w->WScreen->LayerInfo);
  86 #endif
  87
  88     if ((w != NULL) && (mri->mri_Flags & MUIMRI_REFRESHMODE))
  89     {
  90         BeginRefresh(w);
  91         UnlockLayerInfo(&w->WScreen->LayerInfo);
  92     }
  93
  94     DisposeRegion(mri->mri_rArray[mri->mri_rCount]);
  95     mri->mri_rArray[mri->mri_rCount] = NULL;
  96
  97     AROS_LIBFUNC_EXIT
  98
  99 } /* MUIA_RemoveClipRegion */