app: add the MIN4() and MAX4() macros to gimp-utils.h

instead of having them in 5 .c files.

app/core/gimp-transform-resize.c

@@ -24,6 +24,7 @@
 #include "core-types.h"
 
 #include "gimp-transform-resize.h"
+#include "gimp-utils.h"
 
 
 #if defined (HAVE_FINITE)
@@ -36,9 +37,7 @@
 #error "no FINITE() implementation available?!"
 #endif
 
-#define EPSILON       0.00000001
+#define EPSILON 0.00000001
-#define MIN4(a,b,c,d) MIN(MIN((a),(b)),MIN((c),(d)))
-#define MAX4(a,b,c,d) MAX(MAX((a),(b)),MAX((c),(d)))
 
 
 typedef struct

app/core/gimp-utils.h

@@ -28,6 +28,10 @@
   g_timer_destroy (_timer); }
 
 
+#define MIN4(a,b,c,d) MIN (MIN ((a), (b)), MIN ((c), (d)))
+#define MAX4(a,b,c,d) MAX (MAX ((a), (b)), MAX ((c), (d)))
+
+
 gint64       gimp_g_type_instance_get_memsize      (GTypeInstance   *instance);
 gint64       gimp_g_object_get_memsize             (GObject         *object);
 gint64       gimp_g_hash_table_get_memsize         (GHashTable      *hash,

app/display/gimpcanvastransformpreview.c

@@ -35,6 +35,7 @@
 #include "core/gimpchannel.h"
 #include "core/gimpimage.h"
 #include "core/gimp-transform-utils.h"
+#include "core/gimp-utils.h"
 
 #include "gimpcanvas.h"
 #include "gimpcanvastransformpreview.h"
@@ -46,9 +47,6 @@
 #define INT_MULT3(a,b,c,t) ((t) = (a) * (b) * (c) + 0x7F5B, \
                            ((((t) >> 7) + (t)) >> 16))
 
-#define MIN4(a,b,c,d)      MIN(MIN(a,b),MIN(c,d))
-#define MAX4(a,b,c,d)      MAX(MAX(a,b),MAX(c,d))
-
 #define MAX_SUB_COLS       6 /* number of columns and  */
 #define MAX_SUB_ROWS       6 /* rows to use in perspective preview subdivision */
 

app/paint/gimpperspectiveclone.c

@@ -39,6 +39,7 @@
 #include "core/gimpimage.h"
 #include "core/gimppickable.h"
 #include "core/gimp-transform-region.h"
+#include "core/gimp-utils.h"
 
 #include "gimpperspectiveclone.h"
 #include "gimpperspectivecloneoptions.h"
@@ -46,10 +47,6 @@
 #include "gimp-intl.h"
 
 
-#define MIN4(a,b,c,d) MIN(MIN(a,b),MIN(c,d))
-#define MAX4(a,b,c,d) MAX(MAX(a,b),MAX(c,d))
-
-
 static void     gimp_perspective_clone_finalize   (GObject          *object);
 
 static gboolean gimp_perspective_clone_start      (GimpPaintCore    *paint_core,

app/tools/gimptransformtool.c

@@ -45,6 +45,7 @@
 #include "core/gimpprogress.h"
 #include "core/gimptoolinfo.h"
 #include "core/gimp-transform-utils.h"
+#include "core/gimp-utils.h"
 
 #include "vectors/gimpvectors.h"
 #include "vectors/gimpstroke.h"
@@ -68,8 +69,6 @@
 
 #define RESPONSE_RESET  1
 #define MIN_HANDLE_SIZE 6
-#define MIN4(a,b,c,d)   MIN(MIN((a),(b)),MIN((c),(d)))
-#define MAX4(a,b,c,d)   MAX(MAX((a),(b)),MAX((c),(d)))
 
 
 static void      gimp_transform_tool_finalize               (GObject               *object);

app/widgets/gimpoverlaychild.c

@@ -27,6 +27,8 @@
 
 #include "widgets-types.h"
 
+#include "core/gimp-utils.h"
+
 #include "gimpoverlaybox.h"
 #include "gimpoverlaychild.h"
 
@@ -491,9 +493,6 @@ gimp_overlay_child_transform_bounds (GimpOverlayChild *child,
   cairo_matrix_transform_point (&child->matrix, &x3, &y3);
   cairo_matrix_transform_point (&child->matrix, &x4, &y4);
 
-#define MIN4(a,b,c,d) MIN(MIN((a),(b)),MIN((c),(d)))
-#define MAX4(a,b,c,d) MAX(MAX((a),(b)),MAX((c),(d)))
-
   bounds_box->x      = (gint) floor (MIN4 (x1, x2, x3, x4));
   bounds_box->y      = (gint) floor (MIN4 (y1, y2, y3, y4));
   bounds_box->width  = (gint) ceil (MAX4 (x1, x2, x3, x4)) - bounds_box->x;