Index: trunk/src/gui_act.c
===================================================================
--- trunk/src/gui_act.c	(revision 683)
+++ trunk/src/gui_act.c	(revision 684)
@@ -64,9 +64,58 @@
 	return rnd_actionv_bin(RND_ACT_DESIGN, "rnd_zoom", res, argc, argv);
 }
 
+#define get_layer(ly, idx) \
+	if ((argv[1].type & FGW_STR) == FGW_STR) { \
+		const char *targets = NULL; \
+		RND_ACT_MAY_CONVARG(1, FGW_STR, RotateLayer, targets = argv[1].val.str); \
+		if ((targets[0] == '@') && (targets[1] == '\0')) { \
+			idx = camv->lysel; \
+			if ((idx < 0) || (idx >= camv->layers.used)) { \
+				rnd_message(RND_MSG_ERROR, "No layer selected\n"); \
+				RND_ACT_IRES(-1); \
+				return FGW_SUCCESS; \
+			} \
+		} \
+		else \
+			RND_ACT_MAY_CONVARG(1, FGW_INT, RotateLayer, idx = argv[1].val.nat_int); \
+	} \
+	else \
+		RND_ACT_MAY_CONVARG(1, FGW_INT, RotateLayer, idx = argv[1].val.nat_int); \
+	\
+	if ((idx < 0) || (idx >= camv->layers.used)) { \
+		rnd_message(RND_MSG_ERROR, "No such layer\n"); \
+		RND_ACT_IRES(-1); \
+		return FGW_SUCCESS; \
+	} \
+	ly = camv->layers.array[idx];
+
+
+
+static const char camv_acts_RotateLayer[] = "RotateLayer(@|idx, deg)";
+static const char camv_acth_RotateLayer[] = "Rotates the layer addressed (@ for current) by deg degrees CCW";
+static fgw_error_t camv_act_RotateLayer(fgw_arg_t *res, int argc, fgw_arg_t *argv)
+{
+	rnd_design_t *hl = RND_ACT_DESIGN;
+	camv_design_t *camv = (camv_design_t *)hl;
+	double deg;
+	camv_layer_t *ly;
+	int idx;
+
+	get_layer(ly, idx);
+
+	RND_ACT_MAY_CONVARG(2, FGW_DOUBLE, RotateLayer, deg = argv[2].val.nat_double);
+
+	rnd_xform_mx_rotate(ly->mx, -deg);
+	ly->enable_mx = 1;
+
+	RND_ACT_IRES(0);
+	return FGW_SUCCESS;
+}
+
 static rnd_action_t gui_action_list[] = {
 	{"Quit", camv_act_Quit, camv_acth_Quit, camv_acts_Quit},
 	{"Zoom", camv_act_Zoom, camv_acth_Zoom, camv_acts_Zoom},
+	{"RotateLayer", camv_act_RotateLayer, camv_acth_RotateLayer, camv_acts_RotateLayer}
 };
 
 void gui_act_init(void)