workbench/libs/muimaster/mui_addclipregion.c

   1 /*
   2     Copyright © 2002-2003, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <proto/graphics.h>
   7 #include <proto/layers.h>
   8 #include <proto/intuition.h>
   9 #include <proto/muimaster.h>
  10
  11 #include "mui.h"
  12 #include "muimaster_intern.h"
  13
  14 #include "debug.h"
  15
  16 /*****************************************************************************
  17
  18     NAME */
  19         AROS_LH2(APTR, MUI_AddClipRegion,
  20
  21 /*  SYNOPSIS */
  22         AROS_LHA(struct MUI_RenderInfo *, mri, A0),
  23         AROS_LHA(struct Region *, r, A1),
  24
  25 /*  LOCATION */
  26         struct Library *, MUIMasterBase, 26, MUIMaster)
  27
  28 /*  FUNCTION
  29
  30     INPUTS
  31
  32     RESULT
  33
  34     NOTES
  35
  36     EXAMPLE
  37
  38     BUGS
  39         The function itself is a bug ;-) Remove it!
  40
  41     SEE ALSO
  42
  43     INTERNALS
  44
  45     HISTORY
  46
  47 *****************************************************************************/
  48 {
  49     AROS_LIBFUNC_INIT
  50     AROS_LIBBASE_EXT_DECL(struct MUIMasterBase *,MUIMasterBase)
  51
  52     struct Window *w = mri->mri_Window;
  53     struct Layer  *l;
  54     APTR result;
  55
  56     if (w != NULL)
  57         l = w->WLayer;
  58     else
  59         l = mri->mri_RastPort->Layer;
  60
  61     // if (mri->mri_rCount == MRI_RARRAY_SIZE) kprintf(" --------- mui_addclipregion clip overflow ---------------------\n");
  62
  63     if ((l == NULL) || (r == NULL) || (mri->mri_rCount == MRI_RARRAY_SIZE))
  64     {
  65         if (r) DisposeRegion(r);
  66         return (APTR)-1;
  67     }
  68
  69     if (mri->mri_rCount != 0)
  70         /* NOTE: ignoring the result here... */
  71         AndRegionRegion(mri->mri_rArray[mri->mri_rCount-1], r);
  72
  73     if ((w != NULL) && (mri->mri_Flags & MUIMRI_REFRESHMODE))
  74     {
  75         LockLayerInfo(&w->WScreen->LayerInfo);
  76         EndRefresh(w, FALSE);
  77     }
  78
  79 #if 1 /* stegerg: what's this good for? */
  80     if ((w != NULL) && !(w->Flags & WFLG_SIMPLE_REFRESH))
  81         LockLayerInfo(&w->WScreen->LayerInfo);
  82 #endif
  83
  84     result = InstallClipRegion(l, r);
  85
  86 #if 1 /* stegerg: what's this good for? */
  87     if ((w != NULL) && !(w->Flags & WFLG_SIMPLE_REFRESH))
  88         UnlockLayerInfo(&w->WScreen->LayerInfo);
  89 #endif
  90
  91     if ((w != NULL) && (mri->mri_Flags & MUIMRI_REFRESHMODE))
  92     {
  93         BeginRefresh(w);
  94         UnlockLayerInfo(&w->WScreen->LayerInfo);
  95     }
  96
  97     mri->mri_rArray[mri->mri_rCount++] = r;
  98
  99     return result;
 100
 101     AROS_LIBFUNC_EXIT
 102
 103 } /* MUIA_AddClipRegion */