workbench/libs/muimaster/mui_addclipregion.c

   1 /*
   2     Copyright © 2002-2012, 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, 30, MUIMaster)
  27
  28 /*  FUNCTION
  29
  30     INPUTS
  31
  32     RESULT
  33
  34     NOTES
  35
  36     EXAMPLE
  37
  38     BUGS
  39
  40     SEE ALSO
  41
  42     INTERNALS
  43
  44 *****************************************************************************/
  45 {
  46     AROS_LIBFUNC_INIT
  47
  48     struct Window *w = mri->mri_Window;
  49     struct Layer  *l;
  50     APTR result;
  51
  52     if (w != NULL)
  53         l = w->WLayer;
  54     else
  55         l = mri->mri_RastPort->Layer;
  56
  57     // if (mri->mri_rCount == MRI_RARRAY_SIZE)
  58     //    kprintf(" --------- mui_addclipregion clip overflow ---------------------\n");
  59
  60     if ((l == NULL) || (r == NULL) || (mri->mri_rCount == MRI_RARRAY_SIZE))
  61     {
  62         if (r)
  63             DisposeRegion(r);
  64         return (APTR)-1;
  65     }
  66
  67     if (mri->mri_rCount != 0)
  68         /* NOTE: ignoring the result here... */
  69         AndRegionRegion(mri->mri_rArray[mri->mri_rCount-1], r);
  70
  71     if ((w != NULL) && (mri->mri_Flags & MUIMRI_REFRESHMODE))
  72     {
  73             LockLayerInfo(&w->WScreen->LayerInfo);
  74         EndRefresh(w, FALSE);
  75     }
  76
  77 #if 1 /* stegerg: what's this good for? */
  78     if ((w != NULL) && !(w->Flags & WFLG_SIMPLE_REFRESH))
  79         LockLayerInfo(&w->WScreen->LayerInfo);
  80 #endif
  81
  82     result = InstallClipRegion(l, r);
  83
  84 #if 1 /* stegerg: what's this good for? */
  85     if ((w != NULL) && !(w->Flags & WFLG_SIMPLE_REFRESH))
  86         UnlockLayerInfo(&w->WScreen->LayerInfo);
  87 #endif
  88
  89     if ((w != NULL) && (mri->mri_Flags & MUIMRI_REFRESHMODE))
  90     {
  91         BeginRefresh(w);
  92         UnlockLayerInfo(&w->WScreen->LayerInfo);
  93     }
  94
  95     mri->mri_rArray[mri->mri_rCount++] = r;
  96
  97     return result;
  98
  99     AROS_LIBFUNC_EXIT
 100
 101 } /* MUIA_AddClipRegion */