5 files changed, 56 insertions, 18 deletions

diff --git a/source/blender/editors/include/ED_mesh.h b/source/blender/editors/include/ED_mesh.h
index f55f7755668..078762065b4 100644
--- a/source/blender/editors/include/ED_mesh.h
+++ b/source/blender/editors/include/ED_mesh.h
@@ -61,6 +61,7 @@ struct BMEditMesh;
 struct BMEditSelection;
 struct BMesh;
 struct BMVert;
+struct BMLoop;
 struct MLoopCol;
 struct BMEdge;
 struct BMFace;
@@ -118,6 +119,7 @@ void EDBM_update_generic(struct bContext *C, struct BMEditMesh *em, const short
 
 struct UvElementMap *EDBM_uv_element_map_create(struct BMEditMesh *em, int selected, int doIslands);
 void                 EDBM_uv_element_map_free(struct UvElementMap *vmap);
+struct UvElement *ED_uv_element_get(struct UvElementMap *map, struct BMFace *efa, struct BMLoop *l);
 
 int              EDBM_mtexpoly_check(struct BMEditMesh *em);
 struct MTexPoly *EDBM_mtexpoly_active_get(struct BMEditMesh *em, struct BMFace **r_act_efa, int sloppy, int selected);
diff --git a/source/blender/editors/mesh/editmesh_utils.c b/source/blender/editors/mesh/editmesh_utils.c
index 537d463dfbc..ef3d8db4156 100644
--- a/source/blender/editors/mesh/editmesh_utils.c
+++ b/source/blender/editors/mesh/editmesh_utils.c
@@ -1012,6 +1012,19 @@ void EDBM_uv_element_map_free(UvElementMap *element_map)
 	}
 }
 
+UvElement *ED_uv_element_get(UvElementMap *map, BMFace *efa, BMLoop *l)
+{
+	UvElement *element;
+
+	element = map->vert[BM_elem_index_get(l->v)];
+
+	for (; element; element = element->next)
+		if (element->face == efa)
+			return element;
+
+	return NULL;
+}
+
 /* last_sel, use em->act_face otherwise get the last selected face in the editselections
  * at the moment, last_sel is mainly useful for making sure the space image dosnt flicker */
 MTexPoly *EDBM_mtexpoly_active_get(BMEditMesh *em, BMFace **r_act_efa, int sloppy, int selected)
diff --git a/source/blender/editors/transform/transform_conversions.c b/source/blender/editors/transform/transform_conversions.c
index 0c9a29ce666..a9a74d3d0a1 100644
--- a/source/blender/editors/transform/transform_conversions.c
+++ b/source/blender/editors/transform/transform_conversions.c
@@ -76,6 +76,7 @@
 #include "BKE_gpencil.h"
 #include "BKE_key.h"
 #include "BKE_main.h"
+#include "BKE_mesh.h"
 #include "BKE_modifier.h"
 #include "BKE_movieclip.h"
 #include "BKE_nla.h"
@@ -2359,6 +2360,7 @@ static void createTransUVs(bContext *C, TransInfo *t)
 	SpaceImage *sima = CTX_wm_space_image(C);
 	Image *ima = CTX_data_edit_image(C);
 	Scene *scene = t->scene;
+	ToolSettings *ts = CTX_data_tool_settings(C);
 	TransData *td = NULL;
 	TransData2D *td2d = NULL;
 	MTexPoly *tf;
@@ -2367,12 +2369,25 @@ static void createTransUVs(bContext *C, TransInfo *t)
 	BMFace *efa;
 	BMLoop *l;
 	BMIter iter, liter;
-	int count = 0, countsel = 0;
+	UvElementMap *elementmap;
+	char *island_enabled;
+	int count = 0, countsel = 0, count_rejected = 0;
 	int propmode = t->flag & T_PROP_EDIT;
+	int propconnected = t->flag & T_PROP_CONNECTED;
 
 	if (!ED_space_image_show_uvedit(sima, t->obedit)) return;
 
 	/* count */
+	if(propconnected) {
+		/* create element map with island information */
+		if (ts->uv_flag & UV_SYNC_SELECTION) {
+			elementmap = EDBM_uv_element_map_create (em, FALSE, TRUE);
+		} else {
+			elementmap = EDBM_uv_element_map_create (em, TRUE, TRUE);
+		}
+		island_enabled = MEM_callocN(sizeof(*island_enabled) * elementmap->totalIslands, "TransIslandData(UV Editing)");
+	}
+
 	BM_ITER_MESH (efa, &iter, em->bm, BM_FACES_OF_MESH) {
 		tf = CustomData_bmesh_get(&em->bm->pdata, efa->head.data, CD_MTEXPOLY);
 
@@ -2380,14 +2395,22 @@ static void createTransUVs(bContext *C, TransInfo *t)
 			BM_elem_flag_disable(efa, BM_ELEM_TAG);
 			continue;
 		}
-		
+
 		BM_elem_flag_enable(efa, BM_ELEM_TAG);
 		BM_ITER_ELEM (l, &liter, efa, BM_LOOPS_OF_FACE) {
-			if (uvedit_uv_select_test(em, scene, l)) 
+			if (uvedit_uv_select_test(em, scene, l)) {
 				countsel++;
 
-			if (propmode)
+				if(propconnected) {
+					UvElement *element = ED_uv_element_get(elementmap, efa, l);
+					island_enabled[element->island] = TRUE;
+				}
+
+			}
+
+			if (propmode) {
 				count++;
+			}
 		}
 	}
 
@@ -2413,12 +2436,26 @@ static void createTransUVs(bContext *C, TransInfo *t)
 		BM_ITER_ELEM (l, &liter, efa, BM_LOOPS_OF_FACE) {
 			if (!propmode && !uvedit_uv_select_test(em, scene, l))
 				continue;
+
+			if (propconnected) {
+				UvElement *element = ED_uv_element_get(elementmap, efa, l);
+				if (!island_enabled[element->island]) {
+					count_rejected++;
+					continue;
+				}
+			}
 			
 			luv = CustomData_bmesh_get(&em->bm->ldata, l->head.data, CD_MLOOPUV);
 			UVsToTransData(sima, td++, td2d++, luv->uv, uvedit_uv_select_test(em, scene, l));
 		}
 	}
 
+	if (propconnected) {
+		t->total -= count_rejected;
+		EDBM_uv_element_map_free(elementmap);
+		MEM_freeN(island_enabled);
+	}
+
 	if (sima->flag & SI_LIVE_UNWRAP)
 		ED_uvedit_live_unwrap_begin(t->scene, t->obedit);
 }
diff --git a/source/blender/editors/uvedit/uvedit_intern.h b/source/blender/editors/uvedit/uvedit_intern.h
index 3a89d6ce892..b42875f20c2 100644
--- a/source/blender/editors/uvedit/uvedit_intern.h
+++ b/source/blender/editors/uvedit/uvedit_intern.h
@@ -72,7 +72,6 @@ void uv_find_nearest_edge(struct Scene *scene, struct Image *ima, struct BMEditM
 
 /* utility tool functions */
 
-struct UvElement *ED_uv_element_get(struct UvElementMap *map, struct BMFace *efa, struct BMLoop *l);
 void uvedit_live_unwrap_update(struct SpaceImage *sima, struct Scene *scene, struct Object *obedit);
 
 /* operators */
diff --git a/source/blender/editors/uvedit/uvedit_ops.c b/source/blender/editors/uvedit/uvedit_ops.c
index 0d7a31eb8da..4b008d9a30f 100644
--- a/source/blender/editors/uvedit/uvedit_ops.c
+++ b/source/blender/editors/uvedit/uvedit_ops.c
@@ -895,19 +895,6 @@ int ED_uvedit_nearest_uv(Scene *scene, Object *obedit, Image *ima, const float c
 	return found;
 }
 
-UvElement *ED_uv_element_get(UvElementMap *map, BMFace *efa, BMLoop *l)
-{
-	UvElement *element;
-
-	element = map->vert[BM_elem_index_get(l->v)];
-
-	for (; element; element = element->next)
-		if (element->face == efa)
-			return element;
-
-	return NULL;
-}
-
 /*********************** loop select ***********************/
 
 static void select_edgeloop_uv_vertex_loop_flag(UvMapVert *first)