Curve/Surface Editing

- rename "Nurb" to "Spline" in RNA, eg. bpy.data.curves[0].splines[2].type == 'NURBS'
  from a user perspective spline is a more generic term while Nurb is misleading when used for beziers and poly lines.

- added curve.active_spline property so the python UI can display the last selected curve.
  
- set the active spline when entering editmode (uses first selected spline)
  
- added back Hide Handles as a curve property (removed the global flag), access from the view panel in editmode.
  
- added hide normal option for curve, normal size access for curve and mesh display.

- changing orderU/V, endpoints, cyclic, bezierU/V now work in editmode and calls update functions.

- entering editmode was crashing with text objects

- curve.switch_direction() crashed (own fault from last commit)

- Tkey for tilt was overridden by Toolbar, made Tilt Ctrl+T.

- OBJECT_OT_mode_set check for compatible modes before running - so curves dont try go into paint mode with V key for eg.

2 files changed, 27 insertions, 18 deletions

diff --git a/source/blender/editors/space_view3d/drawobject.c b/source/blender/editors/space_view3d/drawobject.c
index 220952d190f..001021e8d4b 100644
--- a/source/blender/editors/space_view3d/drawobject.c
+++ b/source/blender/editors/space_view3d/drawobject.c
@@ -1397,7 +1397,8 @@ void nurbs_foreachScreenVert(ViewContext *vc, void (*func)(void *userData, Nurb
 				BezTriple *bezt = &nu->bezt[i];
 
 				if(bezt->hide==0) {
-					if (G.f & G_HIDDENHANDLES) {
+					
+					if(cu->drawflag & CU_HIDE_HANDLES) {
 						view3d_project_short_clip(vc->ar, bezt->vec[1], s);
 						if (s[0] != IS_CLIPPED)
 							func(userData, nu, NULL, bezt, 1, s[0], s[1]);
@@ -2797,7 +2798,7 @@ static int drawDispList(Scene *scene, View3D *v3d, RegionView3D *rv3d, Base *bas
 		if(solid) {
 			dl= lb->first;
 			if(dl==NULL) return 1;
-			
+
 			if(dl->nors==0) addnormalsDispList(ob, lb);
 			index3_nors_incr= 0;
 			
@@ -2838,7 +2839,7 @@ static int drawDispList(Scene *scene, View3D *v3d, RegionView3D *rv3d, Base *bas
 		}
 		break;
 	case OB_SURF:
-	
+
 		lb= &((Curve *)ob->data)->disp;
 		
 		if(solid) {
@@ -3877,14 +3878,14 @@ static void draw_ptcache_edit(Scene *scene, View3D *v3d, RegionView3D *rv3d, Obj
 unsigned int nurbcol[8]= {
 	0, 0x9090, 0x409030, 0x603080, 0, 0x40fff0, 0x40c033, 0xA090F0 };
 
-static void tekenhandlesN(Nurb *nu, short sel)
+static void tekenhandlesN(Nurb *nu, short sel, short hide_handles)
 {
 	BezTriple *bezt;
 	float *fp;
 	unsigned int *col;
 	int a;
 	
-	if(nu->hide || (G.f & G_HIDDENHANDLES)) return;
+	if(nu->hide || hide_handles) return;
 	
 	glBegin(GL_LINES); 
 	
@@ -3928,7 +3929,7 @@ static void tekenhandlesN(Nurb *nu, short sel)
 	glEnd();
 }
 
-static void tekenvertsN(Nurb *nu, short sel)
+static void tekenvertsN(Nurb *nu, short sel, short hide_handles)
 {
 	BezTriple *bezt;
 	BPoint *bp;
@@ -3951,7 +3952,7 @@ static void tekenvertsN(Nurb *nu, short sel)
 		a= nu->pntsu;
 		while(a--) {
 			if(bezt->hide==0) {
-				if (G.f & G_HIDDENHANDLES) {
+				if (hide_handles) {
 					if((bezt->f2 & SELECT)==sel) bglVertex3fv(bezt->vec[1]);
 				} else {
 					if((bezt->f1 & SELECT)==sel) bglVertex3fv(bezt->vec[0]);
@@ -4083,6 +4084,7 @@ static void drawnurb(Scene *scene, View3D *v3d, RegionView3D *rv3d, Base *base,
 	Curve *cu = ob->data;
 	Nurb *nu;
 	BevList *bl;
+	short hide_handles = (cu->drawflag & CU_HIDE_HANDLES);
 
 // XXX	retopo_matrix_update(v3d);
 
@@ -4095,22 +4097,24 @@ static void drawnurb(Scene *scene, View3D *v3d, RegionView3D *rv3d, Base *base,
 	/* first non-selected handles */
 	for(nu=nurb; nu; nu=nu->next) {
 		if(nu->type == CU_BEZIER) {
-			tekenhandlesN(nu, 0);
+			tekenhandlesN(nu, 0, hide_handles);
 		}
 	}
 	draw_editnurb(ob, nurb, 0);
 	draw_editnurb(ob, nurb, 1);
 	/* selected handles */
 	for(nu=nurb; nu; nu=nu->next) {
-		if(nu->type == CU_BEZIER) tekenhandlesN(nu, 1);
-		tekenvertsN(nu, 0);
+		if(nu->type == CU_BEZIER && (cu->drawflag & CU_HIDE_HANDLES)==0)
+			tekenhandlesN(nu, 1, hide_handles);
+		tekenvertsN(nu, 0, hide_handles);
 	}
 	
 	if(v3d->zbuf) glEnable(GL_DEPTH_TEST);
 
 	/*	direction vectors for 3d curve paths
 		when at its lowest, dont render normals */
-	if(cu->flag & CU_3D && ts->normalsize > 0.0015) {
+	if(cu->flag & CU_3D && ts->normalsize > 0.0015 && (cu->drawflag & CU_HIDE_NORMALS)==0) {
+
 		UI_ThemeColor(TH_WIRE);
 		for (bl=cu->bev.first,nu=nurb; nu && bl; bl=bl->next,nu=nu->next) {
 			BevPoint *bevp= (BevPoint *)(bl+1);		
@@ -4145,7 +4149,7 @@ static void drawnurb(Scene *scene, View3D *v3d, RegionView3D *rv3d, Base *base,
 	if(v3d->zbuf) glDisable(GL_DEPTH_TEST);
 	
 	for(nu=nurb; nu; nu=nu->next) {
-		tekenvertsN(nu, 1);
+		tekenvertsN(nu, 1, hide_handles);
 	}
 	
 	if(v3d->zbuf) glEnable(GL_DEPTH_TEST); 
diff --git a/source/blender/editors/space_view3d/view3d_select.c b/source/blender/editors/space_view3d/view3d_select.c
index 42954e09060..a7696d9fe31 100644
--- a/source/blender/editors/space_view3d/view3d_select.c
+++ b/source/blender/editors/space_view3d/view3d_select.c
@@ -549,13 +549,15 @@ static void do_lasso_select_mesh_uv(short mcords[][2], short moves, short select
 
 static void do_lasso_select_curve__doSelect(void *userData, Nurb *nu, BPoint *bp, BezTriple *bezt, int beztindex, int x, int y)
 {
-	struct { short (*mcords)[2]; short moves; short select; } *data = userData;
-
+	struct { ViewContext vc; short (*mcords)[2]; short moves; short select; } *data = userData;
+	
 	if (lasso_inside(data->mcords, data->moves, x, y)) {
 		if (bp) {
 			bp->f1 = data->select?(bp->f1|SELECT):(bp->f1&~SELECT);
 		} else {
-			if (G.f & G_HIDDENHANDLES) {
+			Curve *cu= data->vc.obedit->data;
+			
+			if (cu->drawflag & CU_HIDE_HANDLES) {
 				/* can only be beztindex==0 here since handles are hidden */
 				bezt->f1 = bezt->f2 = bezt->f3 = data->select?(bezt->f2|SELECT):(bezt->f2&~SELECT);
 			} else {
@@ -573,9 +575,10 @@ static void do_lasso_select_curve__doSelect(void *userData, Nurb *nu, BPoint *bp
 
 static void do_lasso_select_curve(ViewContext *vc, short mcords[][2], short moves, short select)
 {
-	struct { short (*mcords)[2]; short moves; short select; } data;
+	struct { ViewContext vc; short (*mcords)[2]; short moves; short select; } data;
 
 	/* set vc->editnurb */
+	data.vc = *vc;
 	data.mcords = mcords;
 	data.moves = moves;
 	data.select = select;
@@ -1196,7 +1199,9 @@ static void do_nurbs_box_select__doSelect(void *userData, Nurb *nu, BPoint *bp,
 		if (bp) {
 			bp->f1 = data->select?(bp->f1|SELECT):(bp->f1&~SELECT);
 		} else {
-			if (G.f & G_HIDDENHANDLES) {
+			Curve *cu= data->vc.obedit->data;
+			
+			if (cu->drawflag & CU_HIDE_HANDLES) {
 				/* can only be beztindex==0 here since handles are hidden */
 				bezt->f1 = bezt->f2 = bezt->f3 = data->select?(bezt->f2|SELECT):(bezt->f2&~SELECT);
 			} else {
@@ -1215,7 +1220,7 @@ static void do_nurbs_box_select(ViewContext *vc, rcti *rect, int select)
 {
 	struct { ViewContext vc; rcti *rect; int select; } data;
 	
-	data.vc= *vc;
+	data.vc = *vc;
 	data.rect = rect;
 	data.select = select;