Subdivide recode assistance!

- Added subdivide sck upport for vertex groups
- Brought back subdivide-smooth, but it doesn't work as good as before yet,
  it used to catch an exception for subdividing the middle vertex of a quad,
  with edge-based subdivide it's not that simple. Will check later.
- made "number of cuts" a static variable, so it doesn't jump back to 2
  all the time

Coder level notes:

- removed the old subdivide code (yay, over 30k code less!)
- did some minor layout cleanups in the new code (just consistant syntax)
- removed redundant code parts, to enable smooth & vgroup subdiv
- subdivide smooth can do multiple cuts too, but i like to see that only
  as option when our smooth formula is good!

Compliment:

I think Johnny really made comprehensible design and nice code here. Was a
joy to work with. :)

source/blender/include/BIF_editmesh.h

@@ -171,8 +171,9 @@ extern void convert_to_triface(int direction);
 extern int removedoublesflag(short flag, float limit);
 extern void xsortvert_flag(int flag);
 extern void hashvert_flag(int flag);
-extern void subdivideflag(int flag, float rad, int beauty);
+
 extern void esubdivideflag(int flag, float rad, int beauty, int numcuts, int selecttype);
+
 extern void extrude_mesh(void);
 extern void split_mesh(void);
 extern void extrude_repeat_mesh(int steps, float offs);

source/blender/src/editdeform.c

@@ -102,12 +102,13 @@ void sel_verts_defgroup (int select)
 	else EM_deselect_flush();
 }
 
-MDeformWeight *verify_defweight (MDeformVert *dv, int defgroup)
 /* Ensures that mv has a deform weight entry for
-the specified defweight group */
+   the specified defweight group */
+/* Note this function is mirrored in editmesh_tools.c, for use for editvertices */
+MDeformWeight *verify_defweight (MDeformVert *dv, int defgroup)
 {
-	int	i;
 	MDeformWeight *newdw;
+	int	i;
 
 	if (!dv || defgroup<0)
 		return NULL;
@@ -133,7 +134,8 @@ the specified defweight group */
 	return dv->dw+(dv->totweight-1);
 }
 
-void add_defgroup (Object *ob) {
+void add_defgroup (Object *ob) 
+{
 	add_defgroup_name (ob, "Group");
 }
 

source/blender/src/editobject.c

@@ -1928,10 +1928,11 @@ void split_font()
 
 void special_editmenu(void)
 {
+	static short numcuts= 2;
 	Object *ob= OBACT;
 	float fac;
 	int nr,ret;
-	short randfac,numcuts;
+	short randfac;
 	
 	if(ob==NULL) return;
 	
@@ -2084,34 +2085,42 @@ void special_editmenu(void)
 	}
 	else if(G.obedit->type==OB_MESH) {
 
-		nr= pupmenu("Specials%t|Subdivide%x1|Subdivide Multi%x2|Subdivide Multi Fractal%x3|Subdivide Multi Smooth - WIP%x12|Subdivide Smooth Old%x13|Merge%x4|Remove Doubles%x5|Hide%x6|Reveal%x7|Select Swap%x8|Flip Normals %x9|Smooth %x10|Bevel %x11|Set Smooth %x14|Set Solid %x15");
+		nr= pupmenu("Specials%t|Subdivide%x1|Subdivide Multi%x2|Subdivide Multi Fractal%x3|Subdivide Smooth%x12|Merge%x4|Remove Doubles%x5|Hide%x6|Reveal%x7|Select Swap%x8|Flip Normals %x9|Smooth %x10|Bevel %x11|Set Smooth %x14|Set Solid %x15");
 		
 		switch(nr) {
 		case 1:
-			numcuts = 1;
 			waitcursor(1);
-			esubdivideflag(1, 0.0, G.scene->toolsettings->editbutflag,numcuts,0);
+			esubdivideflag(1, 0.0, G.scene->toolsettings->editbutflag, 1, 0);
 			
 			BIF_undo_push("ESubdivide Single");            
 			break;
 		case 2:
-		numcuts = 2;
 			if(button(&numcuts, 1, 128, "Number of Cuts:")==0) return;
 			waitcursor(1);
-			esubdivideflag(1, 0.0, G.scene->toolsettings->editbutflag,numcuts,0);
+			esubdivideflag(1, 0.0, G.scene->toolsettings->editbutflag, numcuts, 0);
 			BIF_undo_push("ESubdivide");
 			break;
 		case 3:
-			numcuts = 2;
 			if(button(&numcuts, 1, 128, "Number of Cuts:")==0) return;
 			waitcursor(1);
 			randfac= 10;
 			if(button(&randfac, 1, 100, "Rand fac:")==0) return;
 			fac= -( (float)randfac )/100;
-			esubdivideflag(1, fac, G.scene->toolsettings->editbutflag,numcuts,0);
+			esubdivideflag(1, fac, G.scene->toolsettings->editbutflag, numcuts, 0);
 			BIF_undo_push("Subdivide Fractal");
 			break;
-
+			
+		case 12:	/* smooth */
+			//if(button(&numcuts, 1, 128, "Number of Cuts:")==0) return;
+			fac= 1.0f;
+			if(fbutton(&fac, 0.0f, 5.0f, 10, 10, "Smooth:")==0) return;
+				fac= 0.292f*fac;
+			
+			waitcursor(1);
+			esubdivideflag(1, fac, G.scene->toolsettings->editbutflag | B_SMOOTH, 1, 0);
+			BIF_undo_push("Subdivide Smooth");
+			break;		
+			
 		case 4:
 			mergemenu();
 			break;
@@ -2138,18 +2147,6 @@ void special_editmenu(void)
 		case 11:
 			bevel_menu();
 			break;
-		case 12:
-			numcuts = 2;
-			if(button(&numcuts, 1, 128, "Number of Cuts:")==0) return;
-			waitcursor(1);
-			esubdivideflag(1, 0.0, G.scene->toolsettings->editbutflag | B_SMOOTH,numcuts,0);
-			BIF_undo_push("Subdivide Smooth");
-			break;		
-		case 13:
-			waitcursor(1);
-			subdivideflag(1, 0.0, G.scene->toolsettings->editbutflag | B_SMOOTH);
-			BIF_undo_push("Subdivide Smooth");
-			break;
 		case 14:
 			mesh_set_smooth_faces(1);
 			break;

source/blender/src/toolbox.c

@@ -1181,8 +1181,7 @@ short sbutton(char *var, float min, float max, char *str)
 	return 0;
 }
 
-short fbutton(float *var, float min, float max, float a1, float a2, 
+short fbutton(float *var, float min, float max, float a1, float a2, char *str)
-char *str)
 {
 	uiBlock *block;
 	ListBase listb={0, 0};