workbench/libs/muimaster/mui_removeclipregion.c

   1 /*
   2     Copyright © 2002-2012, 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, 31, 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 *****************************************************************************/
  48 {
  49     AROS_LIBFUNC_INIT
  50
  51     struct Window *w = mri->mri_Window;
  52     struct Layer  *l;
  53
  54     if (handle == (APTR)-1)
  55         return;
  56
  57     if (w != NULL)
  58         l = w->WLayer;
  59     else
  60         l = mri->mri_RastPort->Layer;
  61
  62     if (l == NULL)
  63         return;
  64
  65     mri->mri_rCount--;
  66
  67     if ((w != NULL) && (mri->mri_Flags & MUIMRI_REFRESHMODE))
  68     {
  69             LockLayerInfo(&w->WScreen->LayerInfo);
  70         EndRefresh(w, FALSE);
  71     }
  72
  73 #if 1 /* stegerg: what's this good for */
  74     if ((w != NULL) && !(w->Flags & WFLG_SIMPLE_REFRESH))
  75         LockLayerInfo(&w->WScreen->LayerInfo);
  76 #endif
  77
  78     InstallClipRegion(l, (mri->mri_rCount > 0)
  79         ? mri->mri_rArray[mri->mri_rCount-1] : NULL);
  80
  81 #if 1 /* stegerg: what's this good for */
  82     if ((w != NULL) && !(w->Flags & WFLG_SIMPLE_REFRESH))
  83         UnlockLayerInfo(&w->WScreen->LayerInfo);
  84 #endif
  85
  86     if ((w != NULL) && (mri->mri_Flags & MUIMRI_REFRESHMODE))
  87     {
  88         BeginRefresh(w);
  89         UnlockLayerInfo(&w->WScreen->LayerInfo);
  90     }
  91
  92     DisposeRegion(mri->mri_rArray[mri->mri_rCount]);
  93     mri->mri_rArray[mri->mri_rCount] = NULL;
  94
  95     AROS_LIBFUNC_EXIT
  96
  97 } /* MUIA_RemoveClipRegion */