add edge-angle drawing in editmode for manifold edges.

3 files changed, 65 insertions, 14 deletions

diff --git a/source/blender/editors/include/UI_resources.h b/source/blender/editors/include/UI_resources.h
index d84e392ae34..51d16094609 100644
--- a/source/blender/editors/include/UI_resources.h
+++ b/source/blender/editors/include/UI_resources.h
@@ -185,6 +185,7 @@ enum {
 	TH_EDGE_CREASE,
 
 	TH_DRAWEXTRA_EDGELEN,
+	TH_DRAWEXTRA_EDGEANG,
 	TH_DRAWEXTRA_FACEAREA,
 	TH_DRAWEXTRA_FACEANG,
 
diff --git a/source/blender/editors/interface/resources.c b/source/blender/editors/interface/resources.c
index 39a6109bd62..d9b179795b8 100644
--- a/source/blender/editors/interface/resources.c
+++ b/source/blender/editors/interface/resources.c
@@ -309,6 +309,8 @@ const unsigned char *UI_ThemeGetColorPtr(bTheme *btheme, int spacetype, int colo
 					cp = &ts->facedot_size; break;
 				case TH_DRAWEXTRA_EDGELEN:
 					cp = ts->extra_edge_len; break;
+				case TH_DRAWEXTRA_EDGEANG:
+					cp = ts->extra_edge_angle; break;
 				case TH_DRAWEXTRA_FACEAREA:
 					cp = ts->extra_face_area; break;
 				case TH_DRAWEXTRA_FACEANG:
@@ -766,6 +768,7 @@ void ui_theme_init_default(void)
 	btheme->tv3d.facedot_size = 4;
 
 	rgba_char_args_set(btheme->tv3d.extra_edge_len, 32, 0, 0, 255);
+	rgba_char_args_set(btheme->tv3d.extra_edge_angle, 32, 32, 0, 255);
 	rgba_char_args_set(btheme->tv3d.extra_face_area, 0, 32, 0, 255);
 	rgba_char_args_set(btheme->tv3d.extra_face_angle, 0, 0, 128, 255);
 
diff --git a/source/blender/editors/space_view3d/drawobject.c b/source/blender/editors/space_view3d/drawobject.c
index 5a537f6f6c5..0fc401e88d4 100644
--- a/source/blender/editors/space_view3d/drawobject.c
+++ b/source/blender/editors/space_view3d/drawobject.c
@@ -2601,9 +2601,9 @@ static void draw_em_measure_stats(View3D *v3d, Object *ob, BMEditMesh *em, UnitS
 	unsigned char col[4] = {0, 0, 0, 255}; /* color of the text to draw */
 	float area; /* area of the face */
 	float grid = unit->system ? unit->scale_length : v3d->grid;
-	const int do_split = unit->flag & USER_UNIT_OPT_SPLIT;
-	const int do_global = v3d->flag & V3D_GLOBAL_STATS;
-	const int do_moving = G.moving;
+	const bool do_split = (unit->flag & USER_UNIT_OPT_SPLIT) != 0;
+	const bool do_global = (v3d->flag & V3D_GLOBAL_STATS) != 0;
+	const bool do_moving = G.moving;
 
 	BMIter iter;
 	int i;
@@ -2644,7 +2644,7 @@ static void draw_em_measure_stats(View3D *v3d, Object *ob, BMEditMesh *em, UnitS
 					               unit->system, B_UNIT_LENGTH, do_split, false);
 				}
 				else {
-					sprintf(numstr, conv_float, len_v3v3(v1, v2));
+					BLI_snprintf(numstr, sizeof(numstr), conv_float, len_v3v3(v1, v2));
 				}
 
 				view3d_cached_text_draw_add(vmid, numstr, 0, txt_flag, col);
@@ -2652,6 +2652,50 @@ static void draw_em_measure_stats(View3D *v3d, Object *ob, BMEditMesh *em, UnitS
 		}
 	}
 
+	if (me->drawflag & ME_DRAWEXTRA_EDGEANG) {
+		const bool is_rad = (unit->system_rotation == USER_UNIT_ROT_RADIANS);
+		BMEdge *eed;
+
+		UI_GetThemeColor3ubv(TH_DRAWEXTRA_EDGEANG, col);
+
+		// invert_m4_m4(ob->imat, ob->obmat);  // this is already called
+
+		eed = BM_iter_new(&iter, em->bm, BM_EDGES_OF_MESH, NULL);
+		for (; eed; eed = BM_iter_step(&iter)) {
+			/* draw selected edges, or edges next to selected verts while draging */
+			if (BM_elem_flag_test(eed, BM_ELEM_SELECT) ||
+			    (do_moving && (BM_elem_flag_test(eed->v1, BM_ELEM_SELECT) ||
+			                   BM_elem_flag_test(eed->v2, BM_ELEM_SELECT))))
+			{
+				BMFace *f_a, *f_b;
+				if (BM_edge_face_pair(eed, &f_a, &f_b)) {
+					float angle;
+					copy_v3_v3(v1, eed->v1->co);
+					copy_v3_v3(v2, eed->v2->co);
+
+					mid_v3_v3v3(vmid, v1, v2);
+
+					if (do_global) {
+						float no_a[3];
+						float no_b[3];
+						copy_v3_v3(no_a, f_a->no);
+						copy_v3_v3(no_b, f_b->no);
+						mul_mat3_m4_v3(ob->imat, no_a);
+						mul_mat3_m4_v3(ob->imat, no_b);
+						angle = angle_v3v3(no_a, no_b);
+					}
+					else {
+						angle = angle_normalized_v3v3(f_a->no, f_b->no);
+					}
+
+					BLI_snprintf(numstr, sizeof(numstr), "%.3f", is_rad ? angle : RAD2DEGF(angle));
+
+					view3d_cached_text_draw_add(vmid, numstr, 0, txt_flag, col);
+				}
+			}
+		}
+	}
+
 	if (me->drawflag & ME_DRAWEXTRA_FACEAREA) {
 		/* would be nice to use BM_face_calc_area, but that is for 2d faces
 		 * so instead add up tessellation triangle areas */
@@ -2714,7 +2758,7 @@ static void draw_em_measure_stats(View3D *v3d, Object *ob, BMEditMesh *em, UnitS
 
 	if (me->drawflag & ME_DRAWEXTRA_FACEANG) {
 		BMFace *efa;
-		int is_rad = unit->system_rotation == USER_UNIT_ROT_RADIANS;
+		const bool is_rad = (unit->system_rotation == USER_UNIT_ROT_RADIANS);
 
 		UI_GetThemeColor3ubv(TH_DRAWEXTRA_FACEANG, col);
 
@@ -2787,7 +2831,7 @@ static void draw_em_indices(BMEditMesh *em)
 		UI_GetThemeColor3ubv(TH_DRAWEXTRA_FACEANG, col);
 		BM_ITER_MESH (v, &iter, bm, BM_VERTS_OF_MESH) {
 			if (BM_elem_flag_test(v, BM_ELEM_SELECT)) {
-				sprintf(numstr, "%d", i);
+				BLI_snprintf(numstr, sizeof(numstr), "%d", i);
 				view3d_cached_text_draw_add(v->co, numstr, 0, txt_flag, col);
 			}
 			i++;
@@ -2799,7 +2843,7 @@ static void draw_em_indices(BMEditMesh *em)
 		UI_GetThemeColor3ubv(TH_DRAWEXTRA_EDGELEN, col);
 		BM_ITER_MESH (e, &iter, bm, BM_EDGES_OF_MESH) {
 			if (BM_elem_flag_test(e, BM_ELEM_SELECT)) {
-				sprintf(numstr, "%d", i);
+				BLI_snprintf(numstr, sizeof(numstr), "%d", i);
 				mid_v3_v3v3(pos, e->v1->co, e->v2->co);
 				view3d_cached_text_draw_add(pos, numstr, 0, txt_flag, col);
 			}
@@ -2813,7 +2857,7 @@ static void draw_em_indices(BMEditMesh *em)
 		BM_ITER_MESH (f, &iter, bm, BM_FACES_OF_MESH) {
 			if (BM_elem_flag_test(f, BM_ELEM_SELECT)) {
 				BM_face_calc_center_mean(f, pos);
-				sprintf(numstr, "%d", i);
+				BLI_snprintf(numstr, sizeof(numstr), "%d", i);
 				view3d_cached_text_draw_add(pos, numstr, 0, txt_flag, col);
 			}
 			i++;
@@ -3002,7 +3046,10 @@ static void draw_em_fancy(Scene *scene, View3D *v3d, RegionView3D *rv3d,
 			draw_dm_vert_normals(em, scene, ob, cageDM);
 		}
 
-		if ((me->drawflag & (ME_DRAWEXTRA_EDGELEN | ME_DRAWEXTRA_FACEAREA | ME_DRAWEXTRA_FACEANG)) &&
+		if ((me->drawflag & (ME_DRAWEXTRA_EDGELEN |
+		                     ME_DRAWEXTRA_FACEAREA |
+		                     ME_DRAWEXTRA_FACEANG |
+		                     ME_DRAWEXTRA_EDGEANG)) &&
 		    !(v3d->flag2 & V3D_RENDER_OVERRIDE))
 		{
 			draw_em_measure_stats(v3d, ob, em, &scene->unit);
@@ -3059,7 +3106,7 @@ static void draw_mesh_fancy(Scene *scene, ARegion *ar, View3D *v3d, RegionView3D
 	eWireDrawMode draw_wire = OBDRAW_WIRE_OFF;
 	int /* totvert,*/ totedge, totface;
 	DerivedMesh *dm = mesh_get_derived_final(scene, ob, scene->customdata_mask);
-	const short is_obact = (ob == OBACT);
+	const bool is_obact = (ob == OBACT);
 	int draw_flags = (is_obact && paint_facesel_test(ob)) ? DRAW_FACE_SELECT : 0;
 
 	if (!dm)
@@ -4396,15 +4443,15 @@ static void draw_new_particle_system(Scene *scene, View3D *v3d, RegionView3D *rv
 
 						if (part->draw & PART_DRAW_NUM) {
 							if (a < totpart && (part->draw & PART_DRAW_HEALTH) && (part->phystype == PART_PHYS_BOIDS)) {
-								sprintf(val_pos, "%d:%.2f", a, pa_health);
+								BLI_snprintf(val_pos, sizeof(numstr), "%d:%.2f", a, pa_health);
 							}
 							else {
-								sprintf(val_pos, "%d", a);
+								BLI_snprintf(val_pos, sizeof(numstr), "%d", a);
 							}
 						}
 						else {
 							if (a < totpart && (part->draw & PART_DRAW_HEALTH) && (part->phystype == PART_PHYS_BOIDS)) {
-								sprintf(val_pos, "%.2f", pa_health);
+								BLI_snprintf(val_pos, sizeof(numstr), "%.2f", pa_health);
 							}
 						}
 
@@ -6279,7 +6326,7 @@ void draw_object(Scene *scene, ARegion *ar, View3D *v3d, Base *base, const short
 	short dtx;
 	char  dt;
 	short zbufoff = 0;
-	const short is_obact = (ob == OBACT);
+	const bool is_obact = (ob == OBACT);
 
 	/* only once set now, will be removed too, should become a global standard */
 	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);