[gimp] plug-ins: tabs to spaces in map-object



commit 87750d993e3d013af39639334919ea5e72cbec42
Author: Mikael Magnusson <mikachu src gnome org>
Date:   Sun Feb 20 15:23:22 2011 +0100

    plug-ins: tabs to spaces in map-object

 plug-ins/map-object/arcball.c            |   68 +++---
 plug-ins/map-object/arcball.h            |    8 +-
 plug-ins/map-object/map-object-apply.c   |   74 +++---
 plug-ins/map-object/map-object-image.c   |   46 ++--
 plug-ins/map-object/map-object-image.h   |   36 ++--
 plug-ins/map-object/map-object-main.c    |   38 ++--
 plug-ins/map-object/map-object-preview.c |  198 ++++++++--------
 plug-ins/map-object/map-object-shade.c   |  292 ++++++++++++------------
 plug-ins/map-object/map-object-shade.h   |   12 +-
 plug-ins/map-object/map-object-ui.c      |  378 +++++++++++++++---------------
 10 files changed, 575 insertions(+), 575 deletions(-)
---
diff --git a/plug-ins/map-object/arcball.c b/plug-ins/map-object/arcball.c
index dcb5987..50b445d 100644
--- a/plug-ins/map-object/arcball.c
+++ b/plug-ins/map-object/arcball.c
@@ -96,7 +96,7 @@ ArcBall_Init (void)
 
 void
 ArcBall_Place (HVect  Center,
-	       double Radius)
+               double Radius)
 {
   center = Center;
   radius = Radius;
@@ -134,10 +134,10 @@ ArcBall_Update (void)
   if (dragging)
     {
       if (axisSet!=NoAxes)
-	{
-	  vFrom = ConstrainToAxis(vFrom, set[axisIndex]);
-	  vTo = ConstrainToAxis(vTo, set[axisIndex]);
-	}
+        {
+          vFrom = ConstrainToAxis(vFrom, set[axisIndex]);
+          vTo = ConstrainToAxis(vTo, set[axisIndex]);
+        }
       qDrag = Qt_FromBallPoints(vFrom, vTo);
       qNow = Qt_Mul(qDrag, qDown);
     }
@@ -163,8 +163,8 @@ ArcBall_Value (HMatrix m_Now)
 
 void
 ArcBall_Values (double *alpha,
-		double *beta,
-		double *gamma)
+                double *beta,
+                double *gamma)
 {
   if ((*beta=asin(-mNow[0][2]))!=0.0)
     {
@@ -211,7 +211,7 @@ ArcBall_EndDrag (void)
 
 static Quat
 Qt_Mul (Quat qL,
-	Quat qR)
+        Quat qR)
 {
   Quat qq;
   qq.w = qL.w*qR.w - qL.x*qR.x - qL.y*qR.y - qL.z*qR.z;
@@ -229,14 +229,14 @@ Qt_Mul (Quat qL,
 
 static void
 Qt_ToMatrix (Quat    q,
-	     HMatrix out)
+             HMatrix out)
 {
   double Nq = q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w;
   double s = (Nq > 0.0) ? (2.0 / Nq) : 0.0;
-  double xs = q.x*s,	      ys = q.y*s,	  zs = q.z*s;
-  double wx = q.w*xs,	      wy = q.w*ys,	  wz = q.w*zs;
-  double xx = q.x*xs,	      xy = q.x*ys,	  xz = q.x*zs;
-  double yy = q.y*ys,	      yz = q.y*zs,	  zz = q.z*zs;
+  double xs = q.x*s,              ys = q.y*s,          zs = q.z*s;
+  double wx = q.w*xs,              wy = q.w*ys,          wz = q.w*zs;
+  double xx = q.x*xs,              xy = q.x*ys,          xz = q.x*zs;
+  double yy = q.y*ys,              yz = q.y*zs,          zz = q.z*zs;
   out[X][X] = 1.0 - (yy + zz); out[Y][X] = xy + wz; out[Z][X] = xz - wy;
   out[X][Y] = xy - wz; out[Y][Y] = 1.0 - (xx + zz); out[Z][Y] = yz + wx;
   out[X][Z] = xz + wy; out[Y][Z] = yz - wx; out[Z][Z] = 1.0 - (xx + yy);
@@ -295,7 +295,7 @@ V3_Unit (HVect v)
 
 static HVect
 V3_Scale (HVect v,
-	  double s)
+          double s)
 {
   HVect u;
   u.x = s*v.x; u.y = s*v.y; u.z = s*v.z; u.w = v.w;
@@ -318,7 +318,7 @@ V3_Negate (HVect v)
 /*
 static HVect
 V3_Add (HVect v1,
-	HVect v2)
+        HVect v2)
 {
   static HVect v = {0, 0, 0, 0};
   v.x = v1.x+v2.x; v.y = v1.y+v2.y; v.z = v1.z+v2.z;
@@ -330,7 +330,7 @@ V3_Add (HVect v1,
 
 static HVect
 V3_Sub (HVect v1,
-	HVect v2)
+        HVect v2)
 {
   static HVect v = {0, 0, 0, 0};
   v.x = v1.x-v2.x; v.y = v1.y-v2.y; v.z = v1.z-v2.z;
@@ -342,7 +342,7 @@ V3_Sub (HVect v1,
 /*
 static HVect
 V3_Bisect (HVect v0,
-	   HVect v1)
+           HVect v1)
 {
   HVect v = {0, 0, 0, 0};
   double Nv;
@@ -360,7 +360,7 @@ V3_Bisect (HVect v0,
 
 static double
 V3_Dot (HVect v1,
-	HVect v2)
+        HVect v2)
 {
   return (v1.x*v2.x + v1.y*v2.y + v1.z*v2.z);
 }
@@ -371,7 +371,7 @@ V3_Dot (HVect v1,
 /*
 static HVect
 V3_Cross (HVect v1,
-	  HVect v2)
+          HVect v2)
 {
   static HVect v = {0, 0, 0, 0};
   v.x = v1.y*v2.z-v1.z*v2.y;
@@ -383,16 +383,16 @@ V3_Cross (HVect v1,
 
 void
 ArcBall_CopyMat (HMatrix inm,
-		 HMatrix outm)
+                 HMatrix outm)
 {
   int x=0,y=0;
 
   for (x=0;x<4;x++)
     {
       for (y=0;y<4;y++)
-	{
-	  outm[y][x]=inm[y][x];
-	}
+        {
+          outm[y][x]=inm[y][x];
+        }
     }
 }
 
@@ -405,8 +405,8 @@ ArcBall_CopyMat (HMatrix inm,
 
 static HVect
 MouseOnSphere (HVect  mouse,
-	       HVect  ballCenter,
-	       double ballRadius)
+               HVect  ballCenter,
+               double ballRadius)
 {
   HVect ballMouse;
   register double mag;
@@ -430,7 +430,7 @@ MouseOnSphere (HVect  mouse,
 
 static Quat
 Qt_FromBallPoints (HVect from,
-		   HVect to)
+                   HVect to)
 {
   Quat qu;
   qu.x = from.y*to.z - from.z*to.y;
@@ -445,8 +445,8 @@ Qt_FromBallPoints (HVect from,
 
 static void
 Qt_ToBallPoints (Quat   q,
-		 HVect *arcFrom,
-		 HVect *arcTo)
+                 HVect *arcFrom,
+                 HVect *arcTo)
 {
   double s;
 
@@ -464,7 +464,7 @@ Qt_ToBallPoints (Quat   q,
 
 static HVect
 ConstrainToAxis (HVect loose,
-		 HVect axis)
+                 HVect axis)
 {
   HVect onPlane;
   register double norm;
@@ -489,8 +489,8 @@ ConstrainToAxis (HVect loose,
 
 static int
 NearestConstraintAxis (HVect  loose,
-		       HVect *axes,
-		       int    nAxes)
+                       HVect *axes,
+                       int    nAxes)
 {
   HVect onPlane;
   register double max, dot;
@@ -502,9 +502,9 @@ NearestConstraintAxis (HVect  loose,
       onPlane = ConstrainToAxis(loose, axes[i]);
       dot = V3_Dot(onPlane, loose);
       if (dot>max)
-	{
-	  max = dot; nearest = i;
-	}
+        {
+          max = dot; nearest = i;
+        }
     }
   return (nearest);
 }
diff --git a/plug-ins/map-object/arcball.h b/plug-ins/map-object/arcball.h
index 5cb6115..f0b56ce 100644
--- a/plug-ins/map-object/arcball.h
+++ b/plug-ins/map-object/arcball.h
@@ -34,17 +34,17 @@ extern Quat qOne;
 
 void ArcBall_Init      (void);
 void ArcBall_Place     (HVect    Center,
-			double   Radius);
+                        double   Radius);
 void ArcBall_UseSet    (AxisSet  axis_Set);
 void ArcBall_Update    (void);
 void ArcBall_Value     (HMatrix  m_Now);
 void ArcBall_Values    (double  *alpha,
-			double  *beta,
-			double  *gamma);
+                        double  *beta,
+                        double  *gamma);
 void ArcBall_BeginDrag (void);
 void ArcBall_EndDrag   (void);
 void ArcBall_Mouse     (HVect    v_Now);
 void ArcBall_CopyMat   (HMatrix  inm,
-			HMatrix  outm);
+                        HMatrix  outm);
 
 #endif /* __ARCBALL_H__ */
diff --git a/plug-ins/map-object/map-object-apply.c b/plug-ins/map-object/map-object-apply.c
index 80a427d..844c484 100644
--- a/plug-ins/map-object/map-object-apply.c
+++ b/plug-ins/map-object/map-object-apply.c
@@ -43,13 +43,13 @@ init_compute (void)
         gimp_vector3_set (&mapvals.secondaxis, 0.0, 1.0,  0.0);
 
         gimp_vector3_rotate (&mapvals.firstaxis,
-			     gimp_deg_to_rad (mapvals.alpha),
-			     gimp_deg_to_rad (mapvals.beta),
-			     gimp_deg_to_rad (mapvals.gamma));
+                             gimp_deg_to_rad (mapvals.alpha),
+                             gimp_deg_to_rad (mapvals.beta),
+                             gimp_deg_to_rad (mapvals.gamma));
         gimp_vector3_rotate (&mapvals.secondaxis,
-			     gimp_deg_to_rad (mapvals.alpha),
-			     gimp_deg_to_rad (mapvals.beta),
-			     gimp_deg_to_rad (mapvals.gamma));
+                             gimp_deg_to_rad (mapvals.alpha),
+                             gimp_deg_to_rad (mapvals.beta),
+                             gimp_deg_to_rad (mapvals.gamma));
 
         /* Compute the 2D bounding box of the sphere spanned by the axis */
         /* ============================================================= */
@@ -70,16 +70,16 @@ init_compute (void)
         gimp_vector3_set (&mapvals.normal,     0.0, 0.0, 1.0);
 
         gimp_vector3_rotate (&mapvals.firstaxis,
-			     gimp_deg_to_rad (mapvals.alpha),
-			     gimp_deg_to_rad (mapvals.beta),
-			     gimp_deg_to_rad (mapvals.gamma));
+                             gimp_deg_to_rad (mapvals.alpha),
+                             gimp_deg_to_rad (mapvals.beta),
+                             gimp_deg_to_rad (mapvals.gamma));
         gimp_vector3_rotate (&mapvals.secondaxis,
-			     gimp_deg_to_rad (mapvals.alpha),
-			     gimp_deg_to_rad (mapvals.beta),
-			     gimp_deg_to_rad (mapvals.gamma));
+                             gimp_deg_to_rad (mapvals.alpha),
+                             gimp_deg_to_rad (mapvals.beta),
+                             gimp_deg_to_rad (mapvals.gamma));
 
         mapvals.normal = gimp_vector3_cross_product (&mapvals.firstaxis,
-						     &mapvals.secondaxis);
+                                                     &mapvals.secondaxis);
 
         if (mapvals.normal.z < 0.0)
           gimp_vector3_mul (&mapvals.normal, -1.0);
@@ -133,12 +133,12 @@ init_compute (void)
 
         for (i = 0; i < 6; i++)
           {
-	    box_drawables[i] = gimp_drawable_get (mapvals.boxmap_id[i]);
+            box_drawables[i] = gimp_drawable_get (mapvals.boxmap_id[i]);
 
-	    gimp_pixel_rgn_init (&box_regions[i], box_drawables[i],
+            gimp_pixel_rgn_init (&box_regions[i], box_drawables[i],
                                  0, 0,
                                  box_drawables[i]->width,
-				 box_drawables[i]->height,
+                                 box_drawables[i]->height,
                                  FALSE, FALSE);
           }
 
@@ -174,13 +174,13 @@ init_compute (void)
 
         for (i = 0; i < 2; i++)
           {
-	    cylinder_drawables[i] =
-	      gimp_drawable_get (mapvals.cylindermap_id[i]);
+            cylinder_drawables[i] =
+              gimp_drawable_get (mapvals.cylindermap_id[i]);
 
-	    gimp_pixel_rgn_init (&cylinder_regions[i], cylinder_drawables[i],
+            gimp_pixel_rgn_init (&cylinder_regions[i], cylinder_drawables[i],
                                  0, 0,
                                  cylinder_drawables[i]->width,
-				 cylinder_drawables[i]->height,
+                                 cylinder_drawables[i]->height,
                                  FALSE, FALSE);
           }
 
@@ -192,9 +192,9 @@ init_compute (void)
 
 static void
 render (gdouble   x,
-	gdouble   y,
-	GimpRGB  *col,
-	gpointer  data)
+        gdouble   y,
+        GimpRGB  *col,
+        gpointer  data)
 {
   GimpVector3 pos;
 
@@ -207,9 +207,9 @@ render (gdouble   x,
 
 static void
 show_progress (gint     min,
-	       gint     max,
-	       gint     curr,
-	       gpointer data)
+               gint     max,
+               gint     curr,
+               gpointer data)
 {
   gimp_progress_update ((gdouble) curr / (gdouble) max);
 }
@@ -264,7 +264,7 @@ compute_image (void)
     }
 
   gimp_pixel_rgn_init (&dest_region, output_drawable,
-		       0, 0, width, height, TRUE, TRUE);
+                       0, 0, width, height, TRUE, TRUE);
 
   switch (mapvals.maptype)
     {
@@ -294,22 +294,22 @@ compute_image (void)
 
               if ((progress_counter++ % width) == 0)
                 gimp_progress_update ((gdouble) progress_counter /
-				      (gdouble) maxcounter);
+                                      (gdouble) maxcounter);
             }
         }
     }
   else
     {
       gimp_adaptive_supersample_area (0, 0,
-				      width - 1, height - 1,
-				      max_depth,
-				      mapvals.pixeltreshold,
-				      render,
-				      NULL,
-				      poke,
-				      NULL,
-				      show_progress,
-				      NULL);
+                                      width - 1, height - 1,
+                                      max_depth,
+                                      mapvals.pixeltreshold,
+                                      render,
+                                      NULL,
+                                      poke,
+                                      NULL,
+                                      show_progress,
+                                      NULL);
     }
 
   /* Update the region */
diff --git a/plug-ins/map-object/map-object-image.c b/plug-ins/map-object/map-object-image.c
index 42de2be..6c65277 100644
--- a/plug-ins/map-object/map-object-image.c
+++ b/plug-ins/map-object/map-object-image.c
@@ -78,8 +78,8 @@ peek (gint x,
 
 static GimpRGB
 peek_box_image (gint image,
-		gint x,
-		gint y)
+                gint x,
+                gint y)
 {
   static guchar data[4];
 
@@ -108,8 +108,8 @@ peek_box_image (gint image,
 
 static GimpRGB
 peek_cylinder_image (gint image,
-		     gint x,
-		     gint y)
+                     gint x,
+                     gint y)
 {
   static guchar data[4];
 
@@ -151,7 +151,7 @@ poke (gint      x,
 
 gint
 checkbounds (gint x,
-	     gint y)
+             gint y)
 {
   if (x < border_x1 || y < border_y1 || x >= border_x2 || y >= border_y2)
     return FALSE;
@@ -161,8 +161,8 @@ checkbounds (gint x,
 
 static gint
 checkbounds_box_image (gint image,
-		       gint x,
-		       gint y)
+                       gint x,
+                       gint y)
 {
   gint w, h;
 
@@ -177,8 +177,8 @@ checkbounds_box_image (gint image,
 
 static gint
 checkbounds_cylinder_image (gint image,
-			    gint x,
-			    gint y)
+                            gint x,
+                            gint y)
 {
   gint w, h;
 
@@ -193,7 +193,7 @@ checkbounds_cylinder_image (gint image,
 
 GimpVector3
 int_to_pos (gint x,
-	    gint y)
+            gint y)
 {
   GimpVector3 pos;
 
@@ -206,9 +206,9 @@ int_to_pos (gint x,
 
 void
 pos_to_int (gdouble  x,
-	    gdouble  y,
-	    gint    *scr_x,
-	    gint    *scr_y)
+            gdouble  y,
+            gint    *scr_x,
+            gint    *scr_y)
 {
   *scr_x = (gint) ((x * (gdouble) width));
   *scr_y = (gint) ((y * (gdouble) height));
@@ -221,8 +221,8 @@ pos_to_int (gdouble  x,
 
 GimpRGB
 get_image_color (gdouble  u,
-		 gdouble  v,
-		 gint    *inside)
+                 gdouble  v,
+                 gint    *inside)
 {
   gint    x1, y1, x2, y2;
   GimpRGB p[4];
@@ -279,8 +279,8 @@ get_image_color (gdouble  u,
 
 GimpRGB
 get_box_image_color (gint    image,
-		     gdouble u,
-		     gdouble v)
+                     gdouble u,
+                     gdouble v)
 {
   gint    w, h;
   gint    x1, y1, x2, y2;
@@ -311,8 +311,8 @@ get_box_image_color (gint    image,
 
 GimpRGB
 get_cylinder_image_color (gint    image,
-			  gdouble u,
-			  gdouble v)
+                          gdouble u,
+                          gdouble v)
 {
   gint    w, h;
   gint    x1, y1, x2, y2;
@@ -347,13 +347,13 @@ get_cylinder_image_color (gint    image,
 
 gint
 image_setup (GimpDrawable *drawable,
-	     gint       interactive)
+             gint       interactive)
 {
   /* Set the tile cache size */
   /* ======================= */
 
   gimp_tile_cache_ntiles ((drawable->width + gimp_tile_width() - 1) /
-			  gimp_tile_width ());
+                          gimp_tile_width ());
 
   /* Get some useful info on the input drawable */
   /* ========================================== */
@@ -362,13 +362,13 @@ image_setup (GimpDrawable *drawable,
   output_drawable = drawable;
 
   gimp_drawable_mask_bounds (drawable->drawable_id,
-			     &border_x1, &border_y1, &border_x2, &border_y2);
+                             &border_x1, &border_y1, &border_x2, &border_y2);
 
   width  = input_drawable->width;
   height = input_drawable->height;
 
   gimp_pixel_rgn_init (&source_region, input_drawable,
-		       0, 0, width, height, FALSE, FALSE);
+                       0, 0, width, height, FALSE, FALSE);
 
   maxcounter = (glong) width * (glong) height;
 
diff --git a/plug-ins/map-object/map-object-image.h b/plug-ins/map-object/map-object-image.h
index f7d6129..93788d8 100644
--- a/plug-ins/map-object/map-object-image.h
+++ b/plug-ins/map-object/map-object-image.h
@@ -30,34 +30,34 @@ extern GimpTile *current_in_tile, *current_out_tile;
 /* ============================ */
 
 extern gint        image_setup              (GimpDrawable *drawable,
-					     gint          interactive);
+                                             gint          interactive);
 extern glong       in_xy_to_index           (gint          x,
-					     gint          y);
+                                             gint          y);
 extern glong       out_xy_to_index          (gint          x,
-					     gint          y);
+                                             gint          y);
 extern gint        checkbounds              (gint          x,
-					     gint          y);
+                                             gint          y);
 extern GimpRGB      peek                     (gint          x,
-					     gint          y);
+                                             gint          y);
 extern void        poke                     (gint          x,
-					     gint          y,
-					     GimpRGB      *color,
-					     gpointer      data);
+                                             gint          y,
+                                             GimpRGB      *color,
+                                             gpointer      data);
 extern GimpVector3 int_to_pos               (gint          x,
-					     gint          y);
+                                             gint          y);
 extern void        pos_to_int               (gdouble       x,
-					     gdouble       y,
-					     gint         *scr_x,
-					     gint         *scr_y);
+                                             gdouble       y,
+                                             gint         *scr_x,
+                                             gint         *scr_y);
 
 extern GimpRGB      get_image_color          (gdouble      u,
-					      gdouble      v,
-					      gint        *inside);
+                                              gdouble      v,
+                                              gint        *inside);
 extern GimpRGB      get_box_image_color      (gint         image,
-					      gdouble      u,
-					      gdouble      v);
+                                              gdouble      u,
+                                              gdouble      v);
 extern GimpRGB      get_cylinder_image_color (gint         image,
-					      gdouble      u,
-					      gdouble      v);
+                                              gdouble      u,
+                                              gdouble      v);
 
 #endif  /* __MAPOBJECT_IMAGE_H__ */
diff --git a/plug-ins/map-object/map-object-main.c b/plug-ins/map-object/map-object-main.c
index c5e6d5d..1c2bfb0 100644
--- a/plug-ins/map-object/map-object-main.c
+++ b/plug-ins/map-object/map-object-main.c
@@ -111,7 +111,7 @@ check_drawables (GimpDrawable *drawable)
   for (i = 0; i < 6; i++)
     {
       if (mapvals.boxmap_id[i] == -1 ||
-	  !gimp_item_is_valid (mapvals.boxmap_id[i]) ||
+          !gimp_item_is_valid (mapvals.boxmap_id[i]) ||
           gimp_drawable_is_gray (mapvals.boxmap_id[i]))
         mapvals.boxmap_id[i] = drawable->drawable_id;
     }
@@ -185,16 +185,16 @@ query (void)
   };
 
   gimp_install_procedure (PLUG_IN_PROC,
-			  N_("Map the image to an object (plane, sphere, box or cylinder)"),
-			  "No help yet",
-			  "Tom Bech & Federico Mena Quintero",
-			  "Tom Bech & Federico Mena Quintero",
-			  "Version 1.2.0, July 16 1998",
-			  N_("Map _Object..."),
-			  "RGB*",
-			  GIMP_PLUGIN,
-			  G_N_ELEMENTS (args), 0,
-			  args, NULL);
+                          N_("Map the image to an object (plane, sphere, box or cylinder)"),
+                          "No help yet",
+                          "Tom Bech & Federico Mena Quintero",
+                          "Tom Bech & Federico Mena Quintero",
+                          "Version 1.2.0, July 16 1998",
+                          N_("Map _Object..."),
+                          "RGB*",
+                          GIMP_PLUGIN,
+                          G_N_ELEMENTS (args), 0,
+                          args, NULL);
 
   gimp_plugin_menu_register (PLUG_IN_PROC, "<Image>/Filters/Map");
 }
@@ -243,11 +243,11 @@ run (const gchar      *name,
         gimp_get_data ("plug_in_map_object", &mapvals);
         check_drawables (drawable);
         if (main_dialog (drawable))
-	  {
-	    compute_image ();
+          {
+            compute_image ();
 
-	    gimp_set_data (PLUG_IN_PROC, &mapvals, sizeof (MapObjectValues));
-	  }
+            gimp_set_data (PLUG_IN_PROC, &mapvals, sizeof (MapObjectValues));
+          }
         break;
 
       case GIMP_RUN_WITH_LAST_VALS:
@@ -259,9 +259,9 @@ run (const gchar      *name,
 
       case GIMP_RUN_NONINTERACTIVE:
         if (nparams != 50)
-	  {
-	    status = GIMP_PDB_CALLING_ERROR;
-	  }
+          {
+            status = GIMP_PDB_CALLING_ERROR;
+          }
         else
           {
             mapvals.maptype                 = (MapType) param[3].data.d_int32;
@@ -281,7 +281,7 @@ run (const gchar      *name,
             mapvals.beta                    = param[17].data.d_float;
             mapvals.gamma                   = param[18].data.d_float;
             mapvals.lightsource.type        = (LightType) param[19].data.d_int32;
-	    mapvals.lightsource.color       = param[20].data.d_color;
+            mapvals.lightsource.color       = param[20].data.d_color;
             mapvals.lightsource.position.x  = param[21].data.d_float;
             mapvals.lightsource.position.y  = param[22].data.d_float;
             mapvals.lightsource.position.z  = param[23].data.d_float;
diff --git a/plug-ins/map-object/map-object-preview.c b/plug-ins/map-object/map-object-preview.c
index 68568e3..d1186f0 100644
--- a/plug-ins/map-object/map-object-preview.c
+++ b/plug-ins/map-object/map-object-preview.c
@@ -31,18 +31,18 @@ static void compute_preview         (gint x,
                                      gint ph);
 static void draw_light_marker       (cairo_t *cr,
                                      gint xpos,
-				     gint ypos);
+                                     gint ypos);
 static void draw_line               (cairo_t    *cr,
-				     gint        startx,
-				     gint        starty,
-				     gint        pw,
-				     gint        ph,
-				     gdouble     cx1,
-				     gdouble     cy1,
-				     gdouble     cx2,
-				     gdouble     cy2,
-				     GimpVector3 a,
-				     GimpVector3 b);
+                                     gint        startx,
+                                     gint        starty,
+                                     gint        pw,
+                                     gint        ph,
+                                     gdouble     cx1,
+                                     gdouble     cy1,
+                                     gdouble     cx2,
+                                     gdouble     cy2,
+                                     GimpVector3 a,
+                                     GimpVector3 b);
 static void draw_wireframe          (cairo_t *cr,
                                      gint startx,
                                      gint starty,
@@ -51,24 +51,24 @@ static void draw_wireframe          (cairo_t *cr,
 static void draw_preview_wireframe  (cairo_t *cr);
 static void draw_wireframe_plane    (cairo_t *cr,
                                      gint        startx,
-				     gint        starty,
-				     gint        pw,
-				     gint        ph);
+                                     gint        starty,
+                                     gint        pw,
+                                     gint        ph);
 static void draw_wireframe_sphere   (cairo_t *cr,
                                      gint        startx,
-				     gint        starty,
-				     gint        pw,
-				     gint        ph);
+                                     gint        starty,
+                                     gint        pw,
+                                     gint        ph);
 static void draw_wireframe_box      (cairo_t *cr,
                                      gint        startx,
-				     gint        starty,
-				     gint        pw,
-				     gint        ph);
+                                     gint        starty,
+                                     gint        pw,
+                                     gint        ph);
 static void draw_wireframe_cylinder (cairo_t *cr,
                                      gint        startx,
-				     gint        starty,
-				     gint        pw,
-				     gint        ph);
+                                     gint        starty,
+                                     gint        pw,
+                                     gint        ph);
 
 /**************************************************************/
 /* Computes a preview of the rectangle starting at (x,y) with */
@@ -77,11 +77,11 @@ static void draw_wireframe_cylinder (cairo_t *cr,
 
 static void
 compute_preview (gint x,
-		 gint y,
-		 gint w,
-		 gint h,
-		 gint pw,
-		 gint ph)
+                 gint y,
+                 gint w,
+                 gint h,
+                 gint pw,
+                 gint ph)
 {
   gdouble      xpostab[PREVIEW_WIDTH];
   gdouble      ypostab[PREVIEW_HEIGHT];
@@ -125,9 +125,9 @@ compute_preview (gint x,
     }
 
   gimp_rgba_set (&lightcheck,
-		 GIMP_CHECK_LIGHT, GIMP_CHECK_LIGHT, GIMP_CHECK_LIGHT, 1.0);
+                 GIMP_CHECK_LIGHT, GIMP_CHECK_LIGHT, GIMP_CHECK_LIGHT, 1.0);
   gimp_rgba_set (&darkcheck,
-		 GIMP_CHECK_DARK, GIMP_CHECK_DARK, GIMP_CHECK_DARK, 1.0);
+                 GIMP_CHECK_DARK, GIMP_CHECK_DARK, GIMP_CHECK_DARK, 1.0);
   gimp_vector3_set (&p2, -1.0, -1.0, 0.0);
 
   cairo_surface_flush (preview_surface);
@@ -152,22 +152,22 @@ compute_preview (gint x,
               if (f1)
                 {
                   if (color.a == 0.0)
-		    color = lightcheck;
+                    color = lightcheck;
                   else
-		    gimp_rgb_composite (&color, &lightcheck,
-					GIMP_RGB_COMPOSITE_BEHIND);
+                    gimp_rgb_composite (&color, &lightcheck,
+                                        GIMP_RGB_COMPOSITE_BEHIND);
                  }
               else
                 {
                   if (color.a == 0.0)
-		    color = darkcheck;
+                    color = darkcheck;
                   else
-		    gimp_rgb_composite (&color, &darkcheck,
-					GIMP_RGB_COMPOSITE_BEHIND);
+                    gimp_rgb_composite (&color, &darkcheck,
+                                        GIMP_RGB_COMPOSITE_BEHIND);
                 }
             }
 
-	  gimp_rgb_get_uchar (&color, &r, &g, &b);
+          gimp_rgb_get_uchar (&color, &r, &g, &b);
           GIMP_CAIRO_RGB24_SET_PIXEL((preview_rgb_data + index), r, g, b);
           index += 4;
         }
@@ -182,7 +182,7 @@ compute_preview (gint x,
 
 gint
 check_light_hit (gint xpos,
-		 gint ypos)
+                 gint ypos)
 {
   gdouble dx, dy, r;
 
@@ -208,7 +208,7 @@ check_light_hit (gint xpos,
 static void
 draw_light_marker (cairo_t *cr,
                    gint xpos,
-		   gint ypos)
+                   gint ypos)
 {
   GdkColor  color;
   gint pw, ph, startx, starty;
@@ -238,16 +238,16 @@ draw_light_marker (cairo_t *cr,
 static void
 draw_lights (cairo_t *cr,
              gint startx,
-	     gint starty,
-	     gint pw,
-	     gint ph)
+             gint starty,
+             gint pw,
+             gint ph)
 {
   gdouble dxpos, dypos;
   gint    xpos, ypos;
 
   gimp_vector_3d_to_2d (startx, starty, pw, ph,
-			&dxpos, &dypos, &mapvals.viewpoint,
-			&mapvals.lightsource.position);
+                        &dxpos, &dypos, &mapvals.viewpoint,
+                        &mapvals.lightsource.position);
   xpos = RINT (dxpos);
   ypos = RINT (dypos);
 
@@ -264,7 +264,7 @@ draw_lights (cairo_t *cr,
 
 void
 update_light (gint xpos,
-	      gint ypos)
+              gint ypos)
 {
   gint    startx, starty, pw, ph;
 
@@ -274,7 +274,7 @@ update_light (gint xpos,
   starty = (PREVIEW_HEIGHT - ph) / 2;
 
   gimp_vector_2d_to_3d (startx, starty, pw, ph, xpos, ypos,
-			&mapvals.viewpoint, &mapvals.lightsource.position);
+                        &mapvals.viewpoint, &mapvals.lightsource.position);
 
   gtk_widget_queue_draw (previewarea);
 }
@@ -363,9 +363,9 @@ draw_preview_wireframe (cairo_t *cr)
 void
 draw_wireframe (cairo_t *cr,
                 gint startx,
-		gint starty,
-		gint pw,
-		gint ph)
+                gint starty,
+                gint pw,
+                gint ph)
 {
   cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
   switch (mapvals.maptype)
@@ -388,9 +388,9 @@ draw_wireframe (cairo_t *cr,
 static void
 draw_wireframe_plane (cairo_t *cr,
                       gint startx,
-		      gint starty,
-		      gint pw,
-		      gint ph)
+                      gint starty,
+                      gint pw,
+                      gint ph)
 {
   GimpVector3 v1, v2, a, b, c, d, dir1, dir2;
   gint        cnt;
@@ -406,14 +406,14 @@ draw_wireframe_plane (cairo_t *cr,
   gimp_vector3_set (&v2, 0.0, 0.5, 0.0);
 
   gimp_vector3_rotate (&v1,
-		       gimp_deg_to_rad (mapvals.alpha),
-		       gimp_deg_to_rad (mapvals.beta),
-		       gimp_deg_to_rad (mapvals.gamma));
+                       gimp_deg_to_rad (mapvals.alpha),
+                       gimp_deg_to_rad (mapvals.beta),
+                       gimp_deg_to_rad (mapvals.gamma));
 
   gimp_vector3_rotate (&v2,
-		       gimp_deg_to_rad (mapvals.alpha),
-		       gimp_deg_to_rad (mapvals.beta),
-		       gimp_deg_to_rad (mapvals.gamma));
+                       gimp_deg_to_rad (mapvals.alpha),
+                       gimp_deg_to_rad (mapvals.beta),
+                       gimp_deg_to_rad (mapvals.gamma));
 
   dir1 = v1; gimp_vector3_normalize (&dir1);
   dir2 = v2; gimp_vector3_normalize (&dir2);
@@ -439,17 +439,17 @@ draw_wireframe_plane (cairo_t *cr,
   for (cnt = 0; cnt <= WIRESIZE; cnt++)
     {
       gimp_vector_3d_to_2d (startx, starty, pw, ph,
-			    &x1, &y1, &mapvals.viewpoint, &a);
+                            &x1, &y1, &mapvals.viewpoint, &a);
       gimp_vector_3d_to_2d (startx, starty, pw, ph,
-			    &x2, &y2, &mapvals.viewpoint, &b);
+                            &x2, &y2, &mapvals.viewpoint, &b);
 
       cairo_move_to (cr, RINT (x1), RINT (y1));
       cairo_line_to (cr, RINT (x2), RINT (y2));
 
       gimp_vector_3d_to_2d (startx, starty, pw, ph,
-			    &x1, &y1, &mapvals.viewpoint, &c);
+                            &x1, &y1, &mapvals.viewpoint, &c);
       gimp_vector_3d_to_2d (startx, starty, pw, ph,
-			    &x2, &y2, &mapvals.viewpoint, &d);
+                            &x2, &y2, &mapvals.viewpoint, &d);
 
       cairo_move_to (cr, RINT (x1), RINT (y1));
       cairo_line_to (cr, RINT (x2), RINT (y2));
@@ -470,9 +470,9 @@ draw_wireframe_plane (cairo_t *cr,
 static void
 draw_wireframe_sphere (cairo_t *cr,
                        gint startx,
-		       gint starty,
-		       gint pw,
-		       gint ph)
+                       gint starty,
+                       gint pw,
+                       gint ph)
 {
   GimpVector3 p[2 * (WIRESIZE + 5)];
   gint        cnt, cnt2;
@@ -492,9 +492,9 @@ draw_wireframe_sphere (cairo_t *cr,
       p[cnt].y = 0.0;
       p[cnt].z = mapvals.radius * sin ((gdouble) cnt * twopifac);
       gimp_vector3_rotate (&p[cnt],
-			   gimp_deg_to_rad (mapvals.alpha),
-			   gimp_deg_to_rad (mapvals.beta),
-			   gimp_deg_to_rad (mapvals.gamma));
+                           gimp_deg_to_rad (mapvals.alpha),
+                           gimp_deg_to_rad (mapvals.beta),
+                           gimp_deg_to_rad (mapvals.gamma));
       gimp_vector3_add (&p[cnt], &p[cnt], &mapvals.position);
     }
 
@@ -506,9 +506,9 @@ draw_wireframe_sphere (cairo_t *cr,
       p[cnt].y = mapvals.radius * sin ((gdouble) (cnt-(WIRESIZE+1))*twopifac);
       p[cnt].z = 0.0;
       gimp_vector3_rotate (&p[cnt],
-			   gimp_deg_to_rad (mapvals.alpha),
-			   gimp_deg_to_rad (mapvals.beta),
-			   gimp_deg_to_rad (mapvals.gamma));
+                           gimp_deg_to_rad (mapvals.alpha),
+                           gimp_deg_to_rad (mapvals.beta),
+                           gimp_deg_to_rad (mapvals.gamma));
       gimp_vector3_add (&p[cnt], &p[cnt], &mapvals.position);
     }
 
@@ -521,16 +521,16 @@ draw_wireframe_sphere (cairo_t *cr,
 
   gimp_vector3_set (&p[cnt], 0.0, -0.35, 0.0);
   gimp_vector3_rotate (&p[cnt],
-		       gimp_deg_to_rad (mapvals.alpha),
-		       gimp_deg_to_rad (mapvals.beta),
-		       gimp_deg_to_rad (mapvals.gamma));
+                       gimp_deg_to_rad (mapvals.alpha),
+                       gimp_deg_to_rad (mapvals.beta),
+                       gimp_deg_to_rad (mapvals.gamma));
   p[cnt+1] = mapvals.position;
 
   gimp_vector3_set (&p[cnt+2], 0.0, 0.0, -0.35);
   gimp_vector3_rotate (&p[cnt+2],
-		       gimp_deg_to_rad (mapvals.alpha),
-		       gimp_deg_to_rad (mapvals.beta),
-		       gimp_deg_to_rad (mapvals.gamma));
+                       gimp_deg_to_rad (mapvals.alpha),
+                       gimp_deg_to_rad (mapvals.beta),
+                       gimp_deg_to_rad (mapvals.gamma));
   p[cnt+3] = mapvals.position;
 
   p[cnt + 4] = p[cnt];
@@ -554,9 +554,9 @@ draw_wireframe_sphere (cairo_t *cr,
       if (p[cnt].z > mapvals.position.z && p[cnt + 1].z > mapvals.position.z)
         {
           gimp_vector_3d_to_2d (startx, starty, pw, ph,
-				&x1, &y1, &mapvals.viewpoint, &p[cnt]);
+                                &x1, &y1, &mapvals.viewpoint, &p[cnt]);
           gimp_vector_3d_to_2d (startx, starty, pw, ph,
-				&x2, &y2, &mapvals.viewpoint, &p[cnt + 1]);
+                                &x2, &y2, &mapvals.viewpoint, &p[cnt + 1]);
 
           cairo_move_to (cr, (gint) (x1 + 0.5), (gint) (y1 + 0.5));
           cairo_line_to (cr, (gint) (x2 + 0.5), (gint) (y2 + 0.5));
@@ -569,9 +569,9 @@ draw_wireframe_sphere (cairo_t *cr,
   for (cnt = 0; cnt < 3; cnt++)
     {
       gimp_vector_3d_to_2d (startx, starty, pw, ph,
-			    &x1, &y1, &mapvals.viewpoint, &p[cnt2]);
+                            &x1, &y1, &mapvals.viewpoint, &p[cnt2]);
       gimp_vector_3d_to_2d (startx, starty, pw, ph,
-			    &x2, &y2, &mapvals.viewpoint, &p[cnt2 + 1]);
+                            &x2, &y2, &mapvals.viewpoint, &p[cnt2 + 1]);
 
       cairo_move_to (cr, RINT (x1), RINT (y1));
       cairo_line_to (cr, RINT (x2), RINT (y2));
@@ -588,23 +588,23 @@ draw_wireframe_sphere (cairo_t *cr,
 
 static void
 draw_line (cairo_t    *cr,
-	   gint        startx,
-	   gint        starty,
-	   gint        pw,
-	   gint        ph,
-	   gdouble     cx1,
-	   gdouble     cy1,
-	   gdouble     cx2,
-	   gdouble     cy2,
-	   GimpVector3 a,
-	   GimpVector3 b)
+           gint        startx,
+           gint        starty,
+           gint        pw,
+           gint        ph,
+           gdouble     cx1,
+           gdouble     cy1,
+           gdouble     cx2,
+           gdouble     cy2,
+           GimpVector3 a,
+           GimpVector3 b)
 {
   gdouble x1, y1, x2, y2;
 
   gimp_vector_3d_to_2d (startx, starty, pw, ph,
-			&x1, &y1, &mapvals.viewpoint, &a);
+                        &x1, &y1, &mapvals.viewpoint, &a);
   gimp_vector_3d_to_2d (startx, starty, pw, ph,
-			&x2, &y2, &mapvals.viewpoint, &b);
+                        &x2, &y2, &mapvals.viewpoint, &b);
 
   cairo_move_to (cr, RINT (x1), RINT (y1));
   cairo_line_to (cr, RINT (x2), RINT (y2));
@@ -613,9 +613,9 @@ draw_line (cairo_t    *cr,
 static void
 draw_wireframe_box (cairo_t *cr,
                     gint startx,
-		    gint starty,
-		    gint pw,
-		    gint ph)
+                    gint starty,
+                    gint pw,
+                    gint ph)
 {
   GimpVector3 p[8], tmp, scale;
   gint        i;
@@ -684,9 +684,9 @@ draw_wireframe_box (cairo_t *cr,
 static void
 draw_wireframe_cylinder (cairo_t *cr,
                          gint startx,
-			 gint starty,
-			 gint pw,
-			 gint ph)
+                         gint starty,
+                         gint pw,
+                         gint ph)
 {
   GimpVector3 p[2*8], a, axis, scale;
   gint        i;
diff --git a/plug-ins/map-object/map-object-shade.c b/plug-ins/map-object/map-object-shade.c
index c8f70a3..336e6be 100644
--- a/plug-ins/map-object/map-object-shade.c
+++ b/plug-ins/map-object/map-object-shade.c
@@ -33,11 +33,11 @@ typedef struct
 
 static GimpRGB
 phong_shade (GimpVector3 *pos,
-	     GimpVector3 *viewpoint,
-	     GimpVector3 *normal,
-	     GimpRGB     *diff_col,
-	     GimpRGB     *spec_col,
-	     LightType    type)
+             GimpVector3 *viewpoint,
+             GimpVector3 *normal,
+             GimpRGB     *diff_col,
+             GimpRGB     *spec_col,
+             LightType    type)
 {
   GimpRGB       ambientcolor, diffusecolor, specularcolor;
   gdouble      NL, RV, dist;
@@ -106,10 +106,10 @@ phong_shade (GimpVector3 *pos,
 
 static gint
 plane_intersect (GimpVector3 *dir,
-		 GimpVector3 *viewp,
-		 GimpVector3 *ipos,
-		 gdouble     *u,
-		 gdouble     *v)
+                 GimpVector3 *viewp,
+                 GimpVector3 *ipos,
+                 gdouble     *u,
+                 gdouble     *v)
 {
   static gdouble det, det1, det2, det3, t;
 
@@ -121,11 +121,11 @@ plane_intersect (GimpVector3 *dir,
   /* ============================================================= */
 
   det = (imat[0][0] * imat[1][1] * imat[2][2] +
-	 imat[0][1] * imat[1][2] * imat[2][0] +
-	 imat[0][2] * imat[1][0] * imat[2][1] -
-	 imat[0][2] * imat[1][1] * imat[2][0] -
-	 imat[0][0] * imat[1][2] * imat[2][1] -
-	 imat[2][2] * imat[0][1] * imat[1][0]);
+         imat[0][1] * imat[1][2] * imat[2][0] +
+         imat[0][2] * imat[1][0] * imat[2][1] -
+         imat[0][2] * imat[1][1] * imat[2][0] -
+         imat[0][0] * imat[1][2] * imat[2][1] -
+         imat[2][2] * imat[0][1] * imat[1][0]);
 
   /* If the determinant is non-zero, a intersection point exists */
   /* =========================================================== */
@@ -136,25 +136,25 @@ plane_intersect (GimpVector3 *dir,
       /* ==================================================== */
 
       det1 = (imat[0][3] * imat[1][1] * imat[2][2] +
-	      imat[0][1] * imat[1][2] * imat[2][3] +
-	      imat[0][2] * imat[1][3] * imat[2][1] -
-	      imat[0][2] * imat[1][1] * imat[2][3] -
-	      imat[1][2] * imat[2][1] * imat[0][3] -
-	      imat[2][2] * imat[0][1] * imat[1][3]);
+              imat[0][1] * imat[1][2] * imat[2][3] +
+              imat[0][2] * imat[1][3] * imat[2][1] -
+              imat[0][2] * imat[1][1] * imat[2][3] -
+              imat[1][2] * imat[2][1] * imat[0][3] -
+              imat[2][2] * imat[0][1] * imat[1][3]);
 
       det2 = (imat[0][0] * imat[1][3] * imat[2][2] +
-	      imat[0][3] * imat[1][2] * imat[2][0] +
-	      imat[0][2] * imat[1][0] * imat[2][3] -
-	      imat[0][2] * imat[1][3] * imat[2][0] -
-	      imat[1][2] * imat[2][3] * imat[0][0] -
-	      imat[2][2] * imat[0][3] * imat[1][0]);
+              imat[0][3] * imat[1][2] * imat[2][0] +
+              imat[0][2] * imat[1][0] * imat[2][3] -
+              imat[0][2] * imat[1][3] * imat[2][0] -
+              imat[1][2] * imat[2][3] * imat[0][0] -
+              imat[2][2] * imat[0][3] * imat[1][0]);
 
       det3 = (imat[0][0] * imat[1][1] * imat[2][3] +
-	      imat[0][1] * imat[1][3] * imat[2][0] +
-	      imat[0][3] * imat[1][0] * imat[2][1] -
-	      imat[0][3] * imat[1][1] * imat[2][0] -
-	      imat[1][3] * imat[2][1] * imat[0][0] -
-	      imat[2][3] * imat[0][1] * imat[1][0]);
+              imat[0][1] * imat[1][3] * imat[2][0] +
+              imat[0][3] * imat[1][0] * imat[2][1] -
+              imat[0][3] * imat[1][1] * imat[2][0] -
+              imat[1][3] * imat[2][1] * imat[0][0] -
+              imat[2][3] * imat[0][1] * imat[1][0]);
 
       /* Now we have the simultanous solutions. Lets compute the unknowns */
       /* (skip u&v if t is <0, this means the intersection is behind us)  */
@@ -167,7 +167,7 @@ plane_intersect (GimpVector3 *dir,
           *u = 1.0 + ((det2 / det) - 0.5);
           *v = 1.0 + ((det3 / det) - 0.5);
 
-      	  ipos->x = viewp->x + t * dir->x;
+                ipos->x = viewp->x + t * dir->x;
           ipos->y = viewp->y + t * dir->y;
           ipos->z = viewp->z + t * dir->z;
 
@@ -206,17 +206,17 @@ get_ray_color_plane (GimpVector3 *pos)
       color = get_image_color (vx, vy, &inside);
 
       if (color.a != 0.0 && inside == TRUE &&
-	  mapvals.lightsource.type != NO_LIGHT)
+          mapvals.lightsource.type != NO_LIGHT)
         {
           /* Compute shading at this point */
           /* ============================= */
 
           color = phong_shade (&spos,
-			       &mapvals.viewpoint,
-			       &mapvals.normal,
-			       &color,
-			       &mapvals.lightsource.color,
-			       mapvals.lightsource.type);
+                               &mapvals.viewpoint,
+                               &mapvals.normal,
+                               &color,
+                               &mapvals.lightsource.color,
+                               mapvals.lightsource.type);
 
           gimp_rgb_clamp (&color);
         }
@@ -225,7 +225,7 @@ get_ray_color_plane (GimpVector3 *pos)
   if (mapvals.transparent_background == FALSE && color.a < 1.0)
     {
       gimp_rgb_composite (&color, &background,
-			  GIMP_RGB_COMPOSITE_BEHIND);
+                          GIMP_RGB_COMPOSITE_BEHIND);
     }
 
   return color;
@@ -238,8 +238,8 @@ get_ray_color_plane (GimpVector3 *pos)
 
 static void
 sphere_to_image (GimpVector3 *normal,
-		 gdouble     *u,
-		 gdouble     *v)
+                 gdouble     *u,
+                 gdouble     *v)
 {
   static gdouble      alpha, fac;
   static GimpVector3  cross_prod;
@@ -255,7 +255,7 @@ sphere_to_image (GimpVector3 *normal,
   else
     {
       fac = (gimp_vector3_inner_product (&mapvals.firstaxis, normal) /
-	     sin (alpha));
+             sin (alpha));
 
       /* Make sure that we map to -1.0..1.0 (take care of rounding errors) */
       /* ================================================================= */
@@ -265,7 +265,7 @@ sphere_to_image (GimpVector3 *normal,
       *u = acos (fac) / (2.0 * G_PI);
 
       cross_prod = gimp_vector3_cross_product (&mapvals.secondaxis,
-					       &mapvals.firstaxis);
+                                               &mapvals.firstaxis);
 
       if (gimp_vector3_inner_product (&cross_prod, normal) < 0.0)
         *u = 1.0 - *u;
@@ -278,9 +278,9 @@ sphere_to_image (GimpVector3 *normal,
 
 static gint
 sphere_intersect (GimpVector3 *dir,
-		  GimpVector3 *viewp,
-		  GimpVector3 *spos1,
-		  GimpVector3 *spos2)
+                  GimpVector3 *viewp,
+                  GimpVector3 *spos1,
+                  GimpVector3 *spos2)
 {
   static gdouble      alpha, beta, tau, s1, s2, tmp;
   static GimpVector3  t;
@@ -368,11 +368,11 @@ get_ray_color_sphere (GimpVector3 *pos)
           /* =================================== */
 
           color = phong_shade (&spos1,
-			       &mapvals.viewpoint,
-			       &normal,
-			       &color,
-			       &mapvals.lightsource.color,
-			       mapvals.lightsource.type);
+                               &mapvals.viewpoint,
+                               &normal,
+                               &color,
+                               &mapvals.lightsource.color,
+                               mapvals.lightsource.type);
 
           gimp_rgb_clamp (&color);
 
@@ -387,33 +387,33 @@ get_ray_color_sphere (GimpVector3 *pos)
           gimp_vector3_mul (&normal, -1.0);
 
           color2 = phong_shade (&spos2,
-				&mapvals.viewpoint,
-				&normal,
-				&color2,
-				&mapvals.lightsource.color,
-				mapvals.lightsource.type);
+                                &mapvals.viewpoint,
+                                &normal,
+                                &color2,
+                                &mapvals.lightsource.color,
+                                mapvals.lightsource.type);
 
           gimp_rgb_clamp (&color2);
 
           /* Compute a mix of the first and second colors */
           /* ============================================ */
 
-	  gimp_rgb_composite (&color, &color2, GIMP_RGB_COMPOSITE_NORMAL);
+          gimp_rgb_composite (&color, &color2, GIMP_RGB_COMPOSITE_NORMAL);
           gimp_rgb_clamp (&color);
         }
       else if (color.a != 0.0 &&
-	       inside == TRUE &&
-	       mapvals.lightsource.type != NO_LIGHT)
+               inside == TRUE &&
+               mapvals.lightsource.type != NO_LIGHT)
         {
           /* Compute shading at this point */
           /* ============================= */
 
           color = phong_shade (&spos1,
-			       &mapvals.viewpoint,
-			       &normal,
-			       &color,
-			       &mapvals.lightsource.color,
-			       mapvals.lightsource.type);
+                               &mapvals.viewpoint,
+                               &normal,
+                               &color,
+                               &mapvals.lightsource.color,
+                               mapvals.lightsource.type);
 
           gimp_rgb_clamp (&color);
         }
@@ -422,7 +422,7 @@ get_ray_color_sphere (GimpVector3 *pos)
   if (mapvals.transparent_background == FALSE && color.a < 1.0)
     {
       gimp_rgb_composite (&color, &background,
-			  GIMP_RGB_COMPOSITE_BEHIND);
+                          GIMP_RGB_COMPOSITE_BEHIND);
     }
 
   return color;
@@ -482,8 +482,8 @@ compute_bounding_box (void)
 
 void
 vecmulmat (GimpVector3 *u,
-	   GimpVector3 *v,
-	   gfloat       m[16])
+           GimpVector3 *v,
+           gfloat       m[16])
 {
   gfloat v0=v->x, v1=v->y, v2=v->z;
 #define M(row,col)  m[col*4+row]
@@ -495,8 +495,8 @@ vecmulmat (GimpVector3 *u,
 
 void
 rotatemat (gfloat       angle,
-	   GimpVector3 *v,
-	   gfloat       m[16])
+           GimpVector3 *v,
+           gfloat       m[16])
 {
   /* This function contributed by Erich Boleyn (erich uruk org) */
   gfloat mag, s, c;
@@ -591,8 +591,8 @@ transpose_mat (gfloat m[16])
 
 void
 matmul (gfloat a[16],
-	gfloat b[16],
-	gfloat c[16])
+        gfloat b[16],
+        gfloat c[16])
 {
   gint   i, j, k;
   gfloat value;
@@ -605,10 +605,10 @@ matmul (gfloat a[16],
     {
       for (j = 0; j < 4; j++)
         {
-	  value = 0.0;
+          value = 0.0;
 
-	  for (k = 0; k < 4; k++)
-	    value += A(i,k) * B(k,j);
+          for (k = 0; k < 4; k++)
+            value += A(i,k) * B(k,j);
 
           C(i,j) = value;
         }
@@ -642,11 +642,11 @@ ident_mat (gfloat m[16])
 
 static gboolean
 intersect_rect (gdouble            u,
-		gdouble            v,
-		gdouble            w,
-		GimpVector3        viewp,
-		GimpVector3        dir,
-		FaceIntersectInfo *face_info)
+                gdouble            v,
+                gdouble            w,
+                GimpVector3        viewp,
+                GimpVector3        dir,
+                FaceIntersectInfo *face_info)
 {
   gboolean result = FALSE;
   gdouble  u2, v2;
@@ -675,9 +675,9 @@ intersect_rect (gdouble            u,
 
 static gboolean
 intersect_box (GimpVector3        scale,
-	       GimpVector3        viewp,
-	       GimpVector3        dir,
-	       FaceIntersectInfo *face_intersect)
+               GimpVector3        viewp,
+               GimpVector3        dir,
+               FaceIntersectInfo *face_intersect)
 {
   GimpVector3        v, d, tmp, axis[3];
   FaceIntersectInfo  face_tmp;
@@ -693,7 +693,7 @@ intersect_box (GimpVector3        scale,
   /* ========== */
 
   if (intersect_rect (scale.x, scale.y, scale.z / 2.0,
-		      viewp, dir, &face_intersect[i]) == TRUE)
+                      viewp, dir, &face_intersect[i]) == TRUE)
     {
       face_intersect[i].face = 0;
       gimp_vector3_set (&face_intersect[i++].n, 0.0, 0.0, 1.0);
@@ -704,7 +704,7 @@ intersect_box (GimpVector3        scale,
   /* ========= */
 
   if (intersect_rect (scale.x, scale.y, -scale.z / 2.0,
-		      viewp, dir, &face_intersect[i]) == TRUE)
+                      viewp, dir, &face_intersect[i]) == TRUE)
     {
       face_intersect[i].face = 1;
       face_intersect[i].u = 1.0 - face_intersect[i].u;
@@ -725,7 +725,7 @@ intersect_box (GimpVector3        scale,
       vecmulmat (&d, &dir, m);
 
       if (intersect_rect (scale.x, scale.z, scale.y / 2.0,
-			  v, d, &face_intersect[i]) == TRUE)
+                          v, d, &face_intersect[i]) == TRUE)
         {
           face_intersect[i].face = 2;
 
@@ -751,7 +751,7 @@ intersect_box (GimpVector3        scale,
       vecmulmat (&d, &dir, m);
 
       if (intersect_rect (scale.x, scale.z, -scale.y / 2.0,
-			  v, d, &face_intersect[i]) == TRUE)
+                          v, d, &face_intersect[i]) == TRUE)
         {
           face_intersect[i].face = 3;
 
@@ -781,7 +781,7 @@ intersect_box (GimpVector3        scale,
       vecmulmat (&d, &dir, m);
 
       if (intersect_rect (scale.z, scale.y, scale.x / 2.0,
-			  v, d, &face_intersect[i]) == TRUE)
+                          v, d, &face_intersect[i]) == TRUE)
         {
           face_intersect[i].face = 4;
 
@@ -807,7 +807,7 @@ intersect_box (GimpVector3        scale,
       vecmulmat (&d, &dir, m);
 
       if (intersect_rect (scale.z, scale.y, -scale.x / 2.0,
-			  v, d, &face_intersect[i]) == TRUE)
+                          v, d, &face_intersect[i]) == TRUE)
         {
           face_intersect[i].face = 5;
 
@@ -905,8 +905,8 @@ get_ray_color_box (GimpVector3 *pos)
         }
 
       color = get_box_image_color (face_intersect[0].face,
-				   face_intersect[0].u,
-				   face_intersect[0].v);
+                                   face_intersect[0].u,
+                                   face_intersect[0].v);
 
       /* Check for total transparency... */
       /* =============================== */
@@ -918,17 +918,17 @@ get_ray_color_box (GimpVector3 *pos)
           /* =================================== */
 
           color = phong_shade (&face_intersect[0].s,
-			       &mapvals.viewpoint,
-			       &face_intersect[0].n,
-			       &color,
-			       &mapvals.lightsource.color,
-			       mapvals.lightsource.type);
+                               &mapvals.viewpoint,
+                               &face_intersect[0].n,
+                               &color,
+                               &mapvals.lightsource.color,
+                               mapvals.lightsource.type);
 
           gimp_rgb_clamp (&color);
 
           color2 = get_box_image_color (face_intersect[1].face,
-					face_intersect[1].u,
-					face_intersect[1].v);
+                                        face_intersect[1].u,
+                                        face_intersect[1].v);
 
           /* Make the normal point inwards */
           /* ============================= */
@@ -936,42 +936,42 @@ get_ray_color_box (GimpVector3 *pos)
           gimp_vector3_mul (&face_intersect[1].n, -1.0);
 
           color2 = phong_shade (&face_intersect[1].s,
-				&mapvals.viewpoint,
-				&face_intersect[1].n,
-				&color2,
-				&mapvals.lightsource.color,
-				mapvals.lightsource.type);
+                                &mapvals.viewpoint,
+                                &face_intersect[1].n,
+                                &color2,
+                                &mapvals.lightsource.color,
+                                mapvals.lightsource.type);
 
           gimp_rgb_clamp (&color2);
 
           if (mapvals.transparent_background == FALSE && color2.a < 1.0)
             {
-	      gimp_rgb_composite (&color2, &background,
-				  GIMP_RGB_COMPOSITE_BEHIND);
-	    }
+              gimp_rgb_composite (&color2, &background,
+                                  GIMP_RGB_COMPOSITE_BEHIND);
+            }
 
           /* Compute a mix of the first and second colors */
           /* ============================================ */
 
-	  gimp_rgb_composite (&color, &color2, GIMP_RGB_COMPOSITE_NORMAL);
+          gimp_rgb_composite (&color, &color2, GIMP_RGB_COMPOSITE_NORMAL);
           gimp_rgb_clamp (&color);
         }
       else if (color.a != 0.0 && mapvals.lightsource.type != NO_LIGHT)
         {
-	  color = phong_shade (&face_intersect[0].s,
-			       &mapvals.viewpoint,
-			       &face_intersect[0].n,
-			       &color,
-			       &mapvals.lightsource.color,
-			       mapvals.lightsource.type);
-
-	  gimp_rgb_clamp (&color);
+          color = phong_shade (&face_intersect[0].s,
+                               &mapvals.viewpoint,
+                               &face_intersect[0].n,
+                               &color,
+                               &mapvals.lightsource.color,
+                               mapvals.lightsource.type);
+
+          gimp_rgb_clamp (&color);
         }
     }
   else
     {
       if (mapvals.transparent_background == TRUE)
-	gimp_rgb_set_alpha (&color, 0.0);
+        gimp_rgb_set_alpha (&color, 0.0);
     }
 
   return color;
@@ -979,9 +979,9 @@ get_ray_color_box (GimpVector3 *pos)
 
 static gboolean
 intersect_circle (GimpVector3        vp,
-		  GimpVector3        dir,
-		  gdouble            w,
-		  FaceIntersectInfo *face_info)
+                  GimpVector3        dir,
+                  gdouble            w,
+                  FaceIntersectInfo *face_info)
 {
   gboolean result = FALSE;
   gdouble  r, d;
@@ -1013,8 +1013,8 @@ intersect_circle (GimpVector3        vp,
 
 static gboolean
 intersect_cylinder (GimpVector3        vp,
-		    GimpVector3        dir,
-		    FaceIntersectInfo *face_intersect)
+                    GimpVector3        dir,
+                    FaceIntersectInfo *face_intersect)
 {
   gdouble  a, b, c, d, e, f, tmp, l;
   gboolean result = FALSE;
@@ -1108,8 +1108,8 @@ intersect_cylinder (GimpVector3        vp,
 
 static GimpRGB
 get_cylinder_color (gint    face,
-		    gdouble u,
-		    gdouble v)
+                    gdouble u,
+                    gdouble v)
 {
   GimpRGB  color;
   gint    inside;
@@ -1181,8 +1181,8 @@ get_ray_color_cylinder (GimpVector3 *pos)
         }
 
       color = get_cylinder_color (face_intersect[0].face,
-				  face_intersect[0].u,
-				  face_intersect[0].v);
+                                  face_intersect[0].u,
+                                  face_intersect[0].v);
 
       /* Check for transparency... */
       /* ========================= */
@@ -1194,17 +1194,17 @@ get_ray_color_cylinder (GimpVector3 *pos)
           /* =================================== */
 
           color = phong_shade (&face_intersect[0].s,
-			       &mapvals.viewpoint,
-			       &face_intersect[0].n,
-			       &color,
-			       &mapvals.lightsource.color,
-			       mapvals.lightsource.type);
+                               &mapvals.viewpoint,
+                               &face_intersect[0].n,
+                               &color,
+                               &mapvals.lightsource.color,
+                               mapvals.lightsource.type);
 
           gimp_rgb_clamp (&color);
 
           color2 = get_cylinder_color (face_intersect[1].face,
-				       face_intersect[1].u,
-				       face_intersect[1].v);
+                                       face_intersect[1].u,
+                                       face_intersect[1].v);
 
           /* Make the normal point inwards */
           /* ============================= */
@@ -1212,42 +1212,42 @@ get_ray_color_cylinder (GimpVector3 *pos)
           gimp_vector3_mul (&face_intersect[1].n, -1.0);
 
           color2 = phong_shade (&face_intersect[1].s,
-				&mapvals.viewpoint,
-				&face_intersect[1].n,
-				&color2,
-				&mapvals.lightsource.color,
-				mapvals.lightsource.type);
+                                &mapvals.viewpoint,
+                                &face_intersect[1].n,
+                                &color2,
+                                &mapvals.lightsource.color,
+                                mapvals.lightsource.type);
 
           gimp_rgb_clamp (&color2);
 
           if (mapvals.transparent_background == FALSE && color2.a < 1.0)
             {
-	      gimp_rgb_composite (&color2, &background,
-				  GIMP_RGB_COMPOSITE_BEHIND);
+              gimp_rgb_composite (&color2, &background,
+                                  GIMP_RGB_COMPOSITE_BEHIND);
             }
 
           /* Compute a mix of the first and second colors */
           /* ============================================ */
 
-	  gimp_rgb_composite (&color, &color2, GIMP_RGB_COMPOSITE_NORMAL);
+          gimp_rgb_composite (&color, &color2, GIMP_RGB_COMPOSITE_NORMAL);
           gimp_rgb_clamp (&color);
         }
       else if (color.a != 0.0 && mapvals.lightsource.type != NO_LIGHT)
         {
-	  color = phong_shade (&face_intersect[0].s,
-			       &mapvals.viewpoint,
-			       &face_intersect[0].n,
-			       &color,
-			       &mapvals.lightsource.color,
-			       mapvals.lightsource.type);
-
-	  gimp_rgb_clamp (&color);
+          color = phong_shade (&face_intersect[0].s,
+                               &mapvals.viewpoint,
+                               &face_intersect[0].n,
+                               &color,
+                               &mapvals.lightsource.color,
+                               mapvals.lightsource.type);
+
+          gimp_rgb_clamp (&color);
         }
     }
   else
     {
       if (mapvals.transparent_background == TRUE)
-	gimp_rgb_set_alpha (&color, 0.0);
+        gimp_rgb_set_alpha (&color, 0.0);
     }
 
   return color;
diff --git a/plug-ins/map-object/map-object-shade.h b/plug-ins/map-object/map-object-shade.h
index 7f76721..259e5eb 100644
--- a/plug-ins/map-object/map-object-shade.h
+++ b/plug-ins/map-object/map-object-shade.h
@@ -12,15 +12,15 @@ GimpRGB   get_ray_color_cylinder (GimpVector3 *pos);
 void     compute_bounding_box   (void);
 
 void     vecmulmat              (GimpVector3 *u,
-				 GimpVector3 *v,
-				 gfloat       m[16]);
+                                 GimpVector3 *v,
+                                 gfloat       m[16]);
 void     rotatemat              (gfloat       angle,
-				 GimpVector3 *v,
-				 gfloat       m[16]);
+                                 GimpVector3 *v,
+                                 gfloat       m[16]);
 void     transpose_mat          (gfloat       m[16]);
 void     matmul                 (gfloat       a[16],
-				 gfloat       b[16],
-				 gfloat       c[16]);
+                                 gfloat       b[16],
+                                 gfloat       c[16]);
 void     ident_mat              (gfloat       m[16]);
 
 #endif  /* __MAPOBJECT_SHADE_H__ */
diff --git a/plug-ins/map-object/map-object-ui.c b/plug-ins/map-object/map-object-ui.c
index 8b8feef..45e5b2c 100644
--- a/plug-ins/map-object/map-object-ui.c
+++ b/plug-ins/map-object/map-object-ui.c
@@ -38,28 +38,28 @@ static guint light_hit           = FALSE;
 static void create_main_notebook       (GtkWidget     *container);
 
 static gint preview_events             (GtkWidget     *area,
-					GdkEvent      *event);
+                                        GdkEvent      *event);
 
 static void update_light_pos_entries   (void);
 
 static void double_adjustment_update   (GtkAdjustment *adjustment,
-					gpointer       data);
+                                        gpointer       data);
 
 static void toggle_update              (GtkWidget     *widget,
-					gpointer       data);
+                                        gpointer       data);
 
 static void lightmenu_callback         (GtkWidget     *widget,
-					gpointer       data);
+                                        gpointer       data);
 
 static void preview_callback           (GtkWidget     *widget,
-					gpointer       data);
+                                        gpointer       data);
 
 static gint box_constrain              (gint32         image_id,
-					gint32         drawable_id,
-					gpointer       data);
+                                        gint32         drawable_id,
+                                        gpointer       data);
 static gint cylinder_constrain         (gint32         image_id,
-					gint32         drawable_id,
-					gpointer       data);
+                                        gint32         drawable_id,
+                                        gpointer       data);
 
 static GtkWidget * create_options_page     (void);
 static GtkWidget * create_light_page       (void);
@@ -75,7 +75,7 @@ static GtkWidget * create_cylinder_page    (void);
 
 static void
 double_adjustment_update (GtkAdjustment *adjustment,
-			  gpointer       data)
+                          gpointer       data)
 {
   gimp_double_adjustment_update (adjustment, data);
 
@@ -92,7 +92,7 @@ update_light_pos_entries (void)
                                    double_adjustment_update,
                                    &mapvals.lightsource.position.x);
   gtk_adjustment_set_value (GTK_ADJUSTMENT (xadj),
-			    mapvals.lightsource.position.x);
+                            mapvals.lightsource.position.x);
   g_signal_handlers_unblock_by_func (xadj,
                                      double_adjustment_update,
                                      &mapvals.lightsource.position.x);
@@ -101,7 +101,7 @@ update_light_pos_entries (void)
                                    double_adjustment_update,
                                    &mapvals.lightsource.position.y);
   gtk_adjustment_set_value (GTK_ADJUSTMENT (yadj),
-			    mapvals.lightsource.position.y);
+                            mapvals.lightsource.position.y);
   g_signal_handlers_unblock_by_func (yadj,
                                      double_adjustment_update,
                                      &mapvals.lightsource.position.y);
@@ -110,7 +110,7 @@ update_light_pos_entries (void)
                                    double_adjustment_update,
                                    &mapvals.lightsource.position.z);
   gtk_adjustment_set_value (GTK_ADJUSTMENT (zadj),
-			    mapvals.lightsource.position.z);
+                            mapvals.lightsource.position.z);
   g_signal_handlers_unblock_by_func (zadj,
                                      double_adjustment_update,
                                      &mapvals.lightsource.position.z);
@@ -122,7 +122,7 @@ update_light_pos_entries (void)
 
 static void
 toggle_update (GtkWidget *widget,
-	       gpointer   data)
+               gpointer   data)
 {
   gimp_toggle_button_update (widget, data);
 
@@ -136,7 +136,7 @@ toggle_update (GtkWidget *widget,
 
 static void
 lightmenu_callback (GtkWidget *widget,
-		    gpointer   data)
+                    gpointer   data)
 {
   gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (widget),
                                  (gint *) &mapvals.lightsource.type);
@@ -170,7 +170,7 @@ lightmenu_callback (GtkWidget *widget,
 
 static void
 mapmenu_callback (GtkWidget *widget,
-		  gpointer   data)
+                  gpointer   data)
 {
   gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (widget),
                                  (gint *) &mapvals.maptype);
@@ -207,10 +207,10 @@ mapmenu_callback (GtkWidget *widget,
         }
 
       if (!cylinder_page)
-	{
-	  cylinder_page = create_cylinder_page ();
+        {
+          cylinder_page = create_cylinder_page ();
           g_object_ref (cylinder_page);
-	}
+        }
       gtk_notebook_append_page (options_note_book,
                                 cylinder_page,
                                 gtk_label_new_with_mnemonic (_("C_ylinder")));
@@ -237,7 +237,7 @@ mapmenu_callback (GtkWidget *widget,
 
 static void
 preview_callback (GtkWidget *widget,
-		  gpointer   data)
+                  gpointer   data)
 {
   compute_preview_image ();
 
@@ -261,26 +261,26 @@ zoomed_callback (GimpZoomModel *model)
 
 static gint
 box_constrain (gint32   image_id,
-	       gint32   drawable_id,
-	       gpointer data)
+               gint32   drawable_id,
+               gpointer data)
 {
   if (drawable_id == -1)
     return TRUE;
 
   return (gimp_drawable_is_rgb (drawable_id) &&
-	  !gimp_drawable_is_indexed (drawable_id));
+          !gimp_drawable_is_indexed (drawable_id));
 }
 
 static gint
 cylinder_constrain (gint32   image_id,
-		    gint32   drawable_id,
-		    gpointer data)
+                    gint32   drawable_id,
+                    gpointer data)
 {
   if (drawable_id == -1)
     return TRUE;
 
   return (gimp_drawable_is_rgb (drawable_id) &&
-	  !gimp_drawable_is_indexed (drawable_id));
+          !gimp_drawable_is_indexed (drawable_id));
 }
 
 /******************************/
@@ -289,7 +289,7 @@ cylinder_constrain (gint32   image_id,
 
 static gint
 preview_events (GtkWidget *area,
-		GdkEvent  *event)
+                GdkEvent  *event)
 {
   HVect pos;
 /*  HMatrix RotMat;
@@ -308,9 +308,9 @@ preview_events (GtkWidget *area,
         if (light_hit == FALSE)
           {
             pos.x = -(2.0 * (gdouble) event->button.x /
-		      (gdouble) PREVIEW_WIDTH - 1.0);
+                      (gdouble) PREVIEW_WIDTH - 1.0);
             pos.y = (2.0 * (gdouble) event->button.y /
-		     (gdouble) PREVIEW_HEIGHT - 1.0);
+                     (gdouble) PREVIEW_HEIGHT - 1.0);
             /*ArcBall_Mouse(pos);
             ArcBall_BeginDrag(); */
           }
@@ -319,17 +319,17 @@ preview_events (GtkWidget *area,
 
       case GDK_BUTTON_RELEASE:
         if (light_hit == TRUE)
-	  {
+          {
             compute_preview_image ();
 
-	    gtk_widget_queue_draw (previewarea);
-	  }
+            gtk_widget_queue_draw (previewarea);
+          }
         else
           {
             pos.x = -(2.0 * (gdouble) event->button.x /
-		      (gdouble) PREVIEW_WIDTH - 1.0);
+                      (gdouble) PREVIEW_WIDTH - 1.0);
             pos.y = (2.0 * (gdouble) event->button.y /
-		     (gdouble) PREVIEW_HEIGHT - 1.0);
+                     (gdouble) PREVIEW_HEIGHT - 1.0);
             /*ArcBall_Mouse(pos);
             ArcBall_EndDrag(); */
           }
@@ -350,10 +350,10 @@ preview_events (GtkWidget *area,
               }
             else
               {
-            	pos.x = -(2.0 * (gdouble) event->motion.x /
-			  (gdouble) PREVIEW_WIDTH - 1.0);
+                    pos.x = -(2.0 * (gdouble) event->motion.x /
+                          (gdouble) PREVIEW_WIDTH - 1.0);
                 pos.y = (2.0 * (gdouble) event->motion.y /
-			 (gdouble) PREVIEW_HEIGHT - 1.0);
+                         (gdouble) PREVIEW_HEIGHT - 1.0);
 /*                ArcBall_Mouse(pos);
                 ArcBall_Update();
                 ArcBall_Values(&a,&b,&c);
@@ -366,7 +366,7 @@ preview_events (GtkWidget *area,
                 if (Beta<-180) Beta+=360;
                 if (Gamma>180) Gamma-=360;
                 if (Gamma<-180) Gamma+=360;
-            	  UpdateAngleSliders(); */
+                      UpdateAngleSliders(); */
               }
           }
         break;
@@ -434,7 +434,7 @@ create_options_page (void)
 
   toggle = gtk_check_button_new_with_label (_("Transparent background"));
   gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
-				mapvals.transparent_background);
+                                mapvals.transparent_background);
   gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
   gtk_widget_show (toggle);
 
@@ -443,11 +443,11 @@ create_options_page (void)
                     &mapvals.transparent_background);
 
   gimp_help_set_help_data (toggle,
-			   _("Make image transparent outside object"), NULL);
+                           _("Make image transparent outside object"), NULL);
 
   toggle = gtk_check_button_new_with_label (_("Tile source image"));
   gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
-				mapvals.tiled);
+                                mapvals.tiled);
   gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
   gtk_widget_show (toggle);
 
@@ -456,12 +456,12 @@ create_options_page (void)
                     &mapvals.tiled);
 
   gimp_help_set_help_data (toggle,
-			   _("Tile source image: useful for infinite planes"),
-			   NULL);
+                           _("Tile source image: useful for infinite planes"),
+                           NULL);
 
   toggle = gtk_check_button_new_with_label (_("Create new image"));
   gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
-				mapvals.create_new_image);
+                                mapvals.create_new_image);
   gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
   gtk_widget_show (toggle);
 
@@ -470,11 +470,11 @@ create_options_page (void)
                     &mapvals.create_new_image);
 
   gimp_help_set_help_data (toggle,
-			   _("Create a new image when applying filter"), NULL);
+                           _("Create a new image when applying filter"), NULL);
 
   toggle = gtk_check_button_new_with_label (_("Create new layer"));
   gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
-				mapvals.create_new_layer);
+                                mapvals.create_new_layer);
   gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
   gtk_widget_show (toggle);
 
@@ -483,7 +483,7 @@ create_options_page (void)
                     &mapvals.create_new_layer);
 
   gimp_help_set_help_data (toggle,
-			   _("Create a new layer when applying filter"), NULL);
+                           _("Create a new layer when applying filter"), NULL);
 
   /* Antialiasing options */
 
@@ -493,7 +493,7 @@ create_options_page (void)
 
   toggle = gtk_check_button_new_with_mnemonic (_("Enable _antialiasing"));
   gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
-				mapvals.antialiasing);
+                                mapvals.antialiasing);
   gtk_frame_set_label_widget (GTK_FRAME (frame), toggle);
   gtk_widget_show (toggle);
 
@@ -502,8 +502,8 @@ create_options_page (void)
                     &mapvals.antialiasing);
 
   gimp_help_set_help_data (toggle,
-			   _("Enable/disable jagged edges removal "
-			     "(antialiasing)"), NULL);
+                           _("Enable/disable jagged edges removal "
+                             "(antialiasing)"), NULL);
 
   table = gtk_table_new (2, 3, FALSE);
   gtk_table_set_col_spacings (GTK_TABLE (table), 6);
@@ -515,28 +515,28 @@ create_options_page (void)
   g_object_set_data (G_OBJECT (toggle), "set_sensitive", table);
 
   adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
-			      _("_Depth:"), 0, 0,
-			      mapvals.maxdepth, 1.0, 5.0, 0.1, 1.0,
-			      1, TRUE, 0, 0,
-			      _("Antialiasing quality. Higher is better, "
-			       "but slower"), NULL);
+                              _("_Depth:"), 0, 0,
+                              mapvals.maxdepth, 1.0, 5.0, 0.1, 1.0,
+                              1, TRUE, 0, 0,
+                              _("Antialiasing quality. Higher is better, "
+                               "but slower"), NULL);
   g_signal_connect (adj, "value-changed",
                     G_CALLBACK (gimp_double_adjustment_update),
                     &mapvals.maxdepth);
 
   spinbutton = gimp_spin_button_new (&adj, mapvals.pixeltreshold,
-				     0.001, 1000, 0.1, 1, 0, 0, 3);
+                                     0.001, 1000, 0.1, 1, 0, 0, 3);
   gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
-			     _("_Threshold:"), 0.0, 0.5,
-			     spinbutton, 1, TRUE);
+                             _("_Threshold:"), 0.0, 0.5,
+                             spinbutton, 1, TRUE);
 
   g_signal_connect (adj, "value-changed",
                     G_CALLBACK (double_adjustment_update),
                     &mapvals.pixeltreshold);
 
   gimp_help_set_help_data (spinbutton,
-			   _("Stop when pixel differences are smaller than "
-			     "this value"), NULL);
+                           _("Stop when pixel differences are smaller than "
+                             "this value"), NULL);
 
   gtk_widget_show (page);
 
@@ -577,8 +577,8 @@ create_light_page (void)
   gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (combo),
                                  mapvals.lightsource.type);
   gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
-			     _("Lightsource type:"), 0.0, 0.5,
-			     combo, 1, FALSE);
+                             _("Lightsource type:"), 0.0, 0.5,
+                             combo, 1, FALSE);
 
   g_signal_connect (combo, "changed",
                     G_CALLBACK (lightmenu_callback),
@@ -587,19 +587,19 @@ create_light_page (void)
   gimp_help_set_help_data (combo, _("Type of light source to apply"), NULL);
 
   colorbutton = gimp_color_button_new (_("Select lightsource color"),
-				       64, 16,
-				       &mapvals.lightsource.color,
-				       GIMP_COLOR_AREA_FLAT);
+                                       64, 16,
+                                       &mapvals.lightsource.color,
+                                       GIMP_COLOR_AREA_FLAT);
   gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
-			     _("Lightsource color:"), 0.0, 0.5,
-			     colorbutton, 1, FALSE);
+                             _("Lightsource color:"), 0.0, 0.5,
+                             colorbutton, 1, FALSE);
 
   g_signal_connect (colorbutton, "color-changed",
                     G_CALLBACK (gimp_color_button_get_color),
                     &mapvals.lightsource.color);
 
   gimp_help_set_help_data (colorbutton,
-			   _("Set light source color"), NULL);
+                           _("Set light source color"), NULL);
 
   pointlightwid = gimp_frame_new (_("Position"));
   gtk_box_pack_start (GTK_BOX (page), pointlightwid, FALSE, FALSE, 0);
@@ -614,46 +614,46 @@ create_light_page (void)
   gtk_widget_show (table);
 
   spinbutton = gimp_spin_button_new (&xadj, mapvals.lightsource.position.x,
-				     -G_MAXFLOAT, G_MAXFLOAT,
-				     0.1, 1.0, 0.0, 0.0, 2);
+                                     -G_MAXFLOAT, G_MAXFLOAT,
+                                     0.1, 1.0, 0.0, 0.0, 2);
   gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
-			     _("X:"), 0.0, 0.5,
-			     spinbutton, 1, TRUE);
+                             _("X:"), 0.0, 0.5,
+                             spinbutton, 1, TRUE);
 
   g_signal_connect (xadj, "value-changed",
                     G_CALLBACK (double_adjustment_update),
                     &mapvals.lightsource.position.x);
 
   gimp_help_set_help_data (spinbutton,
-			   _("Light source X position in XYZ space"), NULL);
+                           _("Light source X position in XYZ space"), NULL);
 
   spinbutton = gimp_spin_button_new (&yadj, mapvals.lightsource.position.y,
-				     -G_MAXFLOAT, G_MAXFLOAT,
-				     0.1, 1.0, 0.0, 0.0, 2);
+                                     -G_MAXFLOAT, G_MAXFLOAT,
+                                     0.1, 1.0, 0.0, 0.0, 2);
   gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
-			     _("Y:"), 0.0, 0.5,
-			     spinbutton, 1, TRUE);
+                             _("Y:"), 0.0, 0.5,
+                             spinbutton, 1, TRUE);
 
   g_signal_connect (yadj, "value-changed",
                     G_CALLBACK (double_adjustment_update),
                     &mapvals.lightsource.position.y);
 
   gimp_help_set_help_data (spinbutton,
-			   _("Light source Y position in XYZ space"), NULL);
+                           _("Light source Y position in XYZ space"), NULL);
 
   spinbutton = gimp_spin_button_new (&zadj, mapvals.lightsource.position.z,
-				     -G_MAXFLOAT, G_MAXFLOAT,
-				     0.1, 1.0, 0.0, 0.0, 2);
+                                     -G_MAXFLOAT, G_MAXFLOAT,
+                                     0.1, 1.0, 0.0, 0.0, 2);
   gimp_table_attach_aligned (GTK_TABLE (table), 0, 2,
-			     _("Z:"), 0.0, 0.5,
-			     spinbutton, 1, TRUE);
+                             _("Z:"), 0.0, 0.5,
+                             spinbutton, 1, TRUE);
 
   g_signal_connect (zadj, "value-changed",
                     G_CALLBACK (double_adjustment_update),
                     &mapvals.lightsource.position.z);
 
   gimp_help_set_help_data (spinbutton,
-			   _("Light source Z position in XYZ space"), NULL);
+                           _("Light source Z position in XYZ space"), NULL);
 
 
   dirlightwid = gimp_frame_new (_("Direction Vector"));
@@ -669,43 +669,43 @@ create_light_page (void)
   gtk_widget_show (table);
 
   spinbutton = gimp_spin_button_new (&adj, mapvals.lightsource.direction.x,
-				     -1.0, 1.0, 0.01, 0.1, 0.0, 0.0, 2);
+                                     -1.0, 1.0, 0.01, 0.1, 0.0, 0.0, 2);
   gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
-			     _("X:"), 0.0, 0.5,
-			     spinbutton, 1, TRUE);
+                             _("X:"), 0.0, 0.5,
+                             spinbutton, 1, TRUE);
 
   g_signal_connect (adj, "value-changed",
                     G_CALLBACK (double_adjustment_update),
                     &mapvals.lightsource.direction.x);
 
   gimp_help_set_help_data (spinbutton,
-			   _("Light source X direction in XYZ space"), NULL);
+                           _("Light source X direction in XYZ space"), NULL);
 
   spinbutton = gimp_spin_button_new (&adj, mapvals.lightsource.direction.y,
-				     -1.0, 1.0, 0.01, 0.1, 0.0, 0.0, 2);
+                                     -1.0, 1.0, 0.01, 0.1, 0.0, 0.0, 2);
   gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
-			     _("Y:"), 0.0, 0.5,
-			     spinbutton, 1, TRUE);
+                             _("Y:"), 0.0, 0.5,
+                             spinbutton, 1, TRUE);
 
   g_signal_connect (adj, "value-changed",
                     G_CALLBACK (double_adjustment_update),
                     &mapvals.lightsource.direction.y);
 
   gimp_help_set_help_data (spinbutton,
-			   _("Light source Y direction in XYZ space"), NULL);
+                           _("Light source Y direction in XYZ space"), NULL);
 
   spinbutton = gimp_spin_button_new (&adj, mapvals.lightsource.direction.z,
-				     -1.0, 1.0, 0.01, 0.1, 0.0, 0.0, 2);
+                                     -1.0, 1.0, 0.01, 0.1, 0.0, 0.0, 2);
   gimp_table_attach_aligned (GTK_TABLE (table), 0, 2,
-			     _("Z:"), 0.0, 0.5,
-			     spinbutton, 1, TRUE);
+                             _("Z:"), 0.0, 0.5,
+                             spinbutton, 1, TRUE);
 
   g_signal_connect (adj, "value-changed",
                     G_CALLBACK (double_adjustment_update),
                     &mapvals.lightsource.direction.z);
 
   gimp_help_set_help_data (spinbutton,
-			   _("Light source Z direction in XYZ space"), NULL);
+                           _("Light source Z direction in XYZ space"), NULL);
 
   gtk_widget_show (page);
 
@@ -756,9 +756,9 @@ create_material_page (void)
   gtk_size_group_add_widget (group, label);
 
   spinbutton = gimp_spin_button_new (&adj, mapvals.material.ambient_int,
-				     0, G_MAXFLOAT, 0.1, 1.0, 0.0, 0.0, 2);
+                                     0, G_MAXFLOAT, 0.1, 1.0, 0.0, 0.0, 2);
   gtk_table_attach (GTK_TABLE (table), spinbutton, 2, 3, 0, 1,
-		    GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+                    GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
   gtk_widget_show (spinbutton);
 
   g_signal_connect (adj, "value-changed",
@@ -766,13 +766,13 @@ create_material_page (void)
                     &mapvals.material.ambient_int);
 
   gimp_help_set_help_data (spinbutton,
-			   _("Amount of original color to show where no "
-			     "direct light falls"), NULL);
+                           _("Amount of original color to show where no "
+                             "direct light falls"), NULL);
 
   image = gtk_image_new_from_stock (STOCK_INTENSITY_AMBIENT_HIGH,
                                     GTK_ICON_SIZE_BUTTON);
   gtk_table_attach (GTK_TABLE (table), image, 3, 4, 0, 1,
-		    GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+                    GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
   gtk_widget_show (image);
 
   /* Diffuse intensity */
@@ -785,9 +785,9 @@ create_material_page (void)
   gtk_size_group_add_widget (group, label);
 
   spinbutton = gimp_spin_button_new (&adj, mapvals.material.diffuse_int,
-				     0, G_MAXFLOAT, 0.1, 1.0, 0.0, 0.0, 2);
+                                     0, G_MAXFLOAT, 0.1, 1.0, 0.0, 0.0, 2);
   gtk_table_attach (GTK_TABLE (table), spinbutton, 2, 3, 1, 2,
-		    GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+                    GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
   gtk_widget_show (spinbutton);
 
   g_signal_connect (adj, "value-changed",
@@ -795,13 +795,13 @@ create_material_page (void)
                     &mapvals.material.diffuse_int);
 
   gimp_help_set_help_data (spinbutton,
-			   _("Intensity of original color when lit by a light "
-			     "source"), NULL);
+                           _("Intensity of original color when lit by a light "
+                             "source"), NULL);
 
   image = gtk_image_new_from_stock (STOCK_INTENSITY_DIFFUSE_HIGH,
                                     GTK_ICON_SIZE_BUTTON);
   gtk_table_attach (GTK_TABLE (table), image, 3, 4, 1, 2,
-		    GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+                    GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
   gtk_widget_show (image);
 
   frame = gimp_frame_new (_("Reflectivity"));
@@ -828,9 +828,9 @@ create_material_page (void)
   gtk_size_group_add_widget (group, label);
 
   spinbutton = gimp_spin_button_new (&adj, mapvals.material.diffuse_ref,
-				     0, G_MAXFLOAT, 0.1, 1.0, 0.0, 0.0, 2);
+                                     0, G_MAXFLOAT, 0.1, 1.0, 0.0, 0.0, 2);
   gtk_table_attach (GTK_TABLE (table), spinbutton, 2, 3, 0, 1,
-		    GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+                    GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
   gtk_widget_show (spinbutton);
 
   g_signal_connect (adj, "value-changed",
@@ -838,13 +838,13 @@ create_material_page (void)
                     &mapvals.material.diffuse_ref);
 
   gimp_help_set_help_data (spinbutton,
-			   _("Higher values makes the object reflect more "
-			     "light (appear lighter)"), NULL);
+                           _("Higher values makes the object reflect more "
+                             "light (appear lighter)"), NULL);
 
   image = gtk_image_new_from_stock (STOCK_REFLECTIVITY_DIFFUSE_HIGH,
                                     GTK_ICON_SIZE_BUTTON);
   gtk_table_attach (GTK_TABLE (table), image, 3, 4, 0, 1,
-		    GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+                    GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
   gtk_widget_show (image);
 
   /* Specular reflection */
@@ -857,9 +857,9 @@ create_material_page (void)
   gtk_size_group_add_widget (group, label);
 
   spinbutton = gimp_spin_button_new (&adj, mapvals.material.specular_ref,
-				     0, G_MAXFLOAT, 0.1, 1.0, 0.0, 0.0, 2);
+                                     0, G_MAXFLOAT, 0.1, 1.0, 0.0, 0.0, 2);
   gtk_table_attach (GTK_TABLE (table), spinbutton, 2, 3, 1, 2,
-		    GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+                    GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
   gtk_widget_show (spinbutton);
 
   g_signal_connect (adj, "value-changed",
@@ -867,13 +867,13 @@ create_material_page (void)
                     &mapvals.material.specular_ref);
 
   gimp_help_set_help_data (spinbutton,
-			   _("Controls how intense the highlights will be"),
-			   NULL);
+                           _("Controls how intense the highlights will be"),
+                           NULL);
 
   image = gtk_image_new_from_stock (STOCK_REFLECTIVITY_SPECULAR_HIGH,
                                     GTK_ICON_SIZE_BUTTON);
   gtk_table_attach (GTK_TABLE (table), image, 3, 4, 1, 2,
-		    GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+                    GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
   gtk_widget_show (image);
 
   /* Highlight */
@@ -886,9 +886,9 @@ create_material_page (void)
   gtk_size_group_add_widget (group, label);
 
   spinbutton = gimp_spin_button_new (&adj, mapvals.material.highlight,
-				     0, G_MAXFLOAT, 0.1, 1.0, 0.0, 0.0, 2);
+                                     0, G_MAXFLOAT, 0.1, 1.0, 0.0, 0.0, 2);
   gtk_table_attach (GTK_TABLE (table), spinbutton, 2, 3, 2, 3,
-		    GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+                    GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
   gtk_widget_show (spinbutton);
 
   g_signal_connect (adj, "value-changed",
@@ -896,13 +896,13 @@ create_material_page (void)
                     &mapvals.material.highlight);
 
   gimp_help_set_help_data (spinbutton,
-			   _("Higher values makes the highlights more focused"),
-			   NULL);
+                           _("Higher values makes the highlights more focused"),
+                           NULL);
 
   image = gtk_image_new_from_stock (STOCK_REFLECTIVITY_HIGHLIGHT_HIGH,
                                     GTK_ICON_SIZE_BUTTON);
   gtk_table_attach (GTK_TABLE (table), image, 3, 4, 2, 3,
-		    GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
+                    GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
   gtk_widget_show (image);
 
   gtk_widget_show (page);
@@ -939,39 +939,39 @@ create_orientation_page (void)
   gtk_widget_show (table);
 
   adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
-			      _("X:"), 0, 0,
-			      mapvals.position.x, -1.0, 2.0, 0.01, 0.1, 5,
-			      TRUE, 0, 0,
-			      _("Object X position in XYZ space"), NULL);
+                              _("X:"), 0, 0,
+                              mapvals.position.x, -1.0, 2.0, 0.01, 0.1, 5,
+                              TRUE, 0, 0,
+                              _("Object X position in XYZ space"), NULL);
   gtk_size_group_add_widget (group, GIMP_SCALE_ENTRY_SPINBUTTON (adj));
   gtk_spin_button_configure (GIMP_SCALE_ENTRY_SPINBUTTON (adj),
-			     GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.01, 5);
+                             GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.01, 5);
 
   g_signal_connect (adj, "value-changed",
                     G_CALLBACK (double_adjustment_update),
                     &mapvals.position.x);
 
   adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
-			      _("Y:"), 0, 0,
-			      mapvals.position.y, -1.0, 2.0, 0.01, 0.1, 5,
-			      TRUE, 0, 0,
-			      _("Object Y position in XYZ space"), NULL);
+                              _("Y:"), 0, 0,
+                              mapvals.position.y, -1.0, 2.0, 0.01, 0.1, 5,
+                              TRUE, 0, 0,
+                              _("Object Y position in XYZ space"), NULL);
   gtk_size_group_add_widget (group, GIMP_SCALE_ENTRY_SPINBUTTON (adj));
   gtk_spin_button_configure (GIMP_SCALE_ENTRY_SPINBUTTON (adj),
-			     GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.01, 5);
+                             GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.01, 5);
 
   g_signal_connect (adj, "value-changed",
                     G_CALLBACK (double_adjustment_update),
                     &mapvals.position.y);
 
   adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 2,
-			      _("Z:"), 0, 0,
-			      mapvals.position.z, -1.0, 2.0, 0.01, 0.1, 5,
-			      TRUE, 0, 0,
-			      _("Object Z position in XYZ space"), NULL);
+                              _("Z:"), 0, 0,
+                              mapvals.position.z, -1.0, 2.0, 0.01, 0.1, 5,
+                              TRUE, 0, 0,
+                              _("Object Z position in XYZ space"), NULL);
   gtk_size_group_add_widget (group, GIMP_SCALE_ENTRY_SPINBUTTON (adj));
   gtk_spin_button_configure (GIMP_SCALE_ENTRY_SPINBUTTON (adj),
-			     GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.01, 5);
+                             GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.01, 5);
 
   g_signal_connect (adj, "value-changed",
                     G_CALLBACK (double_adjustment_update),
@@ -988,10 +988,10 @@ create_orientation_page (void)
   gtk_widget_show (table);
 
   adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
-			      _("X:"), 0, 0,
-			      mapvals.alpha, -180.0, 180.0, 1.0, 15.0, 1,
-			      TRUE, 0, 0,
-			      _("Rotation angle about X axis"), NULL);
+                              _("X:"), 0, 0,
+                              mapvals.alpha, -180.0, 180.0, 1.0, 15.0, 1,
+                              TRUE, 0, 0,
+                              _("Rotation angle about X axis"), NULL);
   gtk_size_group_add_widget (group, GIMP_SCALE_ENTRY_SPINBUTTON (adj));
 
   g_signal_connect (adj, "value-changed",
@@ -999,10 +999,10 @@ create_orientation_page (void)
                     &mapvals.alpha);
 
   adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
-			      _("Y:"), 0, 0,
-			      mapvals.beta, -180.0, 180.0, 1.0, 15.0, 1,
-			      TRUE, 0, 0,
-			      _("Rotation angle about Y axis"), NULL);
+                              _("Y:"), 0, 0,
+                              mapvals.beta, -180.0, 180.0, 1.0, 15.0, 1,
+                              TRUE, 0, 0,
+                              _("Rotation angle about Y axis"), NULL);
   gtk_size_group_add_widget (group, GIMP_SCALE_ENTRY_SPINBUTTON (adj));
 
   g_signal_connect (adj, "value-changed",
@@ -1010,10 +1010,10 @@ create_orientation_page (void)
                     &mapvals.beta);
 
   adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 2,
-			      _("Z:"), 0, 0,
-			      mapvals.gamma, -180.0, 180.0, 1.0, 15.0, 1,
-			      TRUE, 0, 0,
-			      _("Rotation angle about Z axis"), NULL);
+                              _("Z:"), 0, 0,
+                              mapvals.gamma, -180.0, 180.0, 1.0, 15.0, 1,
+                              TRUE, 0, 0,
+                              _("Rotation angle about Z axis"), NULL);
   gtk_size_group_add_widget (group, GIMP_SCALE_ENTRY_SPINBUTTON (adj));
 
   g_signal_connect (adj, "value-changed",
@@ -1072,8 +1072,8 @@ create_box_page (void)
                                   &mapvals.boxmap_id[i]);
 
       gimp_table_attach_aligned (GTK_TABLE (table), 0, i,
-				 gettext (labels[i]), 0.0, 0.5,
-				 combo, 1, FALSE);
+                                 gettext (labels[i]), 0.0, 0.5,
+                                 combo, 1, FALSE);
     }
 
   /* Scale scales */
@@ -1085,36 +1085,36 @@ create_box_page (void)
   gtk_widget_show (table);
 
   adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
-			      _("Scale X:"), 0, 0,
-			      mapvals.scale.x, 0.0, 5.0, 0.01, 0.1, 2,
-			      TRUE, 0, 0,
-			      _("X scale (size)"), NULL);
+                              _("Scale X:"), 0, 0,
+                              mapvals.scale.x, 0.0, 5.0, 0.01, 0.1, 2,
+                              TRUE, 0, 0,
+                              _("X scale (size)"), NULL);
   gtk_spin_button_configure (GIMP_SCALE_ENTRY_SPINBUTTON (adj),
-			     GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.1, 2);
+                             GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.1, 2);
 
   g_signal_connect (adj, "value-changed",
                     G_CALLBACK (double_adjustment_update),
                     &mapvals.scale.x);
 
   adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
-			      _("Y:"), 0, 0,
-			      mapvals.scale.y, 0.0, 5.0, 0.01, 0.1, 2,
-			      TRUE, 0, 0,
-			      _("Y scale (size)"), NULL);
+                              _("Y:"), 0, 0,
+                              mapvals.scale.y, 0.0, 5.0, 0.01, 0.1, 2,
+                              TRUE, 0, 0,
+                              _("Y scale (size)"), NULL);
   gtk_spin_button_configure (GIMP_SCALE_ENTRY_SPINBUTTON (adj),
-			     GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.1, 2);
+                             GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.1, 2);
 
   g_signal_connect (adj, "value-changed",
                     G_CALLBACK (double_adjustment_update),
                     &mapvals.scale.y);
 
   adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 2,
-			      _("Z:"), 0, 0,
-			      mapvals.scale.z, 0.0, 5.0, 0.01, 0.1, 2,
-			      TRUE, 0, 0,
-			      _("Z scale (size)"), NULL);
+                              _("Z:"), 0, 0,
+                              mapvals.scale.z, 0.0, 5.0, 0.01, 0.1, 2,
+                              TRUE, 0, 0,
+                              _("Z scale (size)"), NULL);
   gtk_spin_button_configure (GIMP_SCALE_ENTRY_SPINBUTTON (adj),
-			     GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.1, 2);
+                             GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.1, 2);
 
   g_signal_connect (adj, "value-changed",
                     G_CALLBACK (double_adjustment_update),
@@ -1180,28 +1180,28 @@ create_cylinder_page (void)
   gtk_widget_show (table);
 
   adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
-			      _("R_adius:"), 0, 0,
-			      mapvals.cylinder_radius,
-			      0.0, 2.0, 0.01, 0.1, 2,
-			      TRUE, 0, 0,
-			      _("Cylinder radius"), NULL);
+                              _("R_adius:"), 0, 0,
+                              mapvals.cylinder_radius,
+                              0.0, 2.0, 0.01, 0.1, 2,
+                              TRUE, 0, 0,
+                              _("Cylinder radius"), NULL);
   gtk_size_group_add_widget (group, GIMP_SCALE_ENTRY_LABEL (adj));
   gtk_spin_button_configure (GIMP_SCALE_ENTRY_SPINBUTTON (adj),
-			     GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.1, 2);
+                             GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.1, 2);
 
   g_signal_connect (adj, "value-changed",
                     G_CALLBACK (double_adjustment_update),
                     &mapvals.cylinder_radius);
 
   adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
-			      _("L_ength:"), 0, 0,
-			      mapvals.cylinder_length,
-			      0.0, 2.0, 0.01, 0.1, 2,
-			      TRUE, 0, 0,
-			      _("Cylinder length"), NULL);
+                              _("L_ength:"), 0, 0,
+                              mapvals.cylinder_length,
+                              0.0, 2.0, 0.01, 0.1, 2,
+                              TRUE, 0, 0,
+                              _("Cylinder length"), NULL);
   gtk_size_group_add_widget (group, GIMP_SCALE_ENTRY_LABEL (adj));
   gtk_spin_button_configure (GIMP_SCALE_ENTRY_SPINBUTTON (adj),
-			     GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.1, 2);
+                             GIMP_SCALE_ENTRY_SPINBUTTON_ADJ (adj), 0.1, 2);
 
   g_signal_connect (adj, "value-changed",
                     G_CALLBACK (double_adjustment_update),
@@ -1229,33 +1229,33 @@ create_main_notebook (GtkWidget *container)
 
   page = create_options_page ();
   gtk_notebook_append_page (options_note_book, page,
-			    gtk_label_new_with_mnemonic (_("O_ptions")));
+                            gtk_label_new_with_mnemonic (_("O_ptions")));
 
   page = create_light_page ();
   gtk_notebook_append_page (options_note_book, page,
-			    gtk_label_new_with_mnemonic (_("_Light")));
+                            gtk_label_new_with_mnemonic (_("_Light")));
 
   page = create_material_page ();
   gtk_notebook_append_page (options_note_book, page,
-			    gtk_label_new_with_mnemonic (_("_Material")));
+                            gtk_label_new_with_mnemonic (_("_Material")));
 
   page = create_orientation_page ();
   gtk_notebook_append_page (options_note_book, page,
-			    gtk_label_new_with_mnemonic (_("O_rientation")));
+                            gtk_label_new_with_mnemonic (_("O_rientation")));
 
   if (mapvals.maptype == MAP_BOX)
     {
       box_page = create_box_page ();
       g_object_ref (box_page);
       gtk_notebook_append_page (options_note_book, box_page,
-				gtk_label_new_with_mnemonic (_("_Box")));
+                                gtk_label_new_with_mnemonic (_("_Box")));
     }
   else if (mapvals.maptype == MAP_CYLINDER)
     {
       cylinder_page = create_cylinder_page ();
       g_object_ref (cylinder_page);
       gtk_notebook_append_page (options_note_book, cylinder_page,
-				gtk_label_new_with_mnemonic (_("C_ylinder")));
+                                gtk_label_new_with_mnemonic (_("C_ylinder")));
     }
 
   gtk_widget_show (GTK_WIDGET (options_note_book));
@@ -1281,12 +1281,12 @@ main_dialog (GimpDrawable *drawable)
 
   appwin = gimp_dialog_new (_("Map to Object"), PLUG_IN_BINARY,
                             NULL, 0,
-			    gimp_standard_help_func, PLUG_IN_PROC,
+                            gimp_standard_help_func, PLUG_IN_PROC,
 
-			    GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
-			    GTK_STOCK_OK,     GTK_RESPONSE_OK,
+                            GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
+                            GTK_STOCK_OK,     GTK_RESPONSE_OK,
 
-			    NULL);
+                            NULL);
 
   gtk_dialog_set_alternative_button_order (GTK_DIALOG (appwin),
                                            GTK_RESPONSE_OK,
@@ -1318,9 +1318,9 @@ main_dialog (GimpDrawable *drawable)
   previewarea = gtk_drawing_area_new ();
   gtk_widget_set_size_request (previewarea, PREVIEW_WIDTH, PREVIEW_HEIGHT);
   gtk_widget_set_events (previewarea, (GDK_EXPOSURE_MASK |
-				       GDK_BUTTON1_MOTION_MASK |
-				       GDK_BUTTON_PRESS_MASK |
-				       GDK_BUTTON_RELEASE_MASK));
+                                       GDK_BUTTON1_MOTION_MASK |
+                                       GDK_BUTTON_PRESS_MASK |
+                                       GDK_BUTTON_RELEASE_MASK));
   gtk_container_add (GTK_CONTAINER (frame), previewarea);
   gtk_widget_show (previewarea);
 



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