workbench/libs/muimaster/mui_addclipregion.c

   1 /*
   2     Copyright © 2002-2007, 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
  51     struct Window *w = mri->mri_Window;
  52     struct Layer  *l;
  53     APTR result;
  54
  55     if (w != NULL)
  56         l = w->WLayer;
  57     else
  58         l = mri->mri_RastPort->Layer;
  59
  60     // if (mri->mri_rCount == MRI_RARRAY_SIZE) kprintf(" --------- mui_addclipregion clip overflow ---------------------\n");
  61
  62     if ((l == NULL) || (r == NULL) || (mri->mri_rCount == MRI_RARRAY_SIZE))
  63     {
  64         if (r) DisposeRegion(r);
  65         return (APTR)-1;
  66     }
  67
  68     if (mri->mri_rCount != 0)
  69         /* NOTE: ignoring the result here... */
  70         AndRegionRegion(mri->mri_rArray[mri->mri_rCount-1], r);
  71
  72     if ((w != NULL) && (mri->mri_Flags & MUIMRI_REFRESHMODE))
  73     {
  74         LockLayerInfo(&w->WScreen->LayerInfo);
  75         EndRefresh(w, FALSE);
  76     }
  77
  78 #if 1 /* stegerg: what's this good for? */
  79     if ((w != NULL) && !(w->Flags & WFLG_SIMPLE_REFRESH))
  80         LockLayerInfo(&w->WScreen->LayerInfo);
  81 #endif
  82
  83     result = InstallClipRegion(l, r);
  84
  85 #if 1 /* stegerg: what's this good for? */
  86     if ((w != NULL) && !(w->Flags & WFLG_SIMPLE_REFRESH))
  87         UnlockLayerInfo(&w->WScreen->LayerInfo);
  88 #endif
  89
  90     if ((w != NULL) && (mri->mri_Flags & MUIMRI_REFRESHMODE))
  91     {
  92         BeginRefresh(w);
  93         UnlockLayerInfo(&w->WScreen->LayerInfo);
  94     }
  95
  96     mri->mri_rArray[mri->mri_rCount++] = r;
  97
  98     return result;
  99
 100     AROS_LIBFUNC_EXIT
 101
 102 } /* MUIA_AddClipRegion */