netview: move lock in Config to prevent deadlock for BuildNetwork whe…

…n netview is open, and make params.Sel 30 wide in edit

netview/netview.go

@@ -199,9 +199,6 @@ func (nv *NetView) UpdateImpl() {
 
 // Config configures the overall view widget
 func (nv *NetView) Config() {
-	nv.DataMu.Lock()
-	defer nv.DataMu.Unlock()
-
 	nv.Lay = gi.LayoutVert
 	if nv.Params.UnitSize == 0 {
 		nv.Defaults()
@@ -243,7 +240,9 @@ func (nv *NetView) Config() {
 	ctrs.Redrawable = true
 	ctrs.SetText("Counters: ")
 
+	nv.DataMu.Lock()
 	nv.Data.Init(nv.Net, nv.Params.MaxRecs)
+	nv.DataMu.Unlock()
 	nv.UpdateEnd(updt)
 }
 

params/params.go

@@ -56,7 +56,7 @@ var KiT_Params = kit.Types.AddType(&Params{}, ParamsProps)
 // parameters, using standard css selector syntax (. prefix = class, # prefix = name,
 // and no prefix = type)
 type Sel struct {
-	Sel    string `desc:"selector for what to apply the parameters to, using standard css selector syntax: .Example applies to anything with a Class tag of 'Example', #Example applies to anything with a Name of 'Example', and Example with no prefix applies to anything of type 'Example'"`
+	Sel    string `width:"30" desc:"selector for what to apply the parameters to, using standard css selector syntax: .Example applies to anything with a Class tag of 'Example', #Example applies to anything with a Name of 'Example', and Example with no prefix applies to anything of type 'Example'"`
 	Desc   string `width:"60" desc:"description of these parameter values -- what effect do they have?  what range was explored?  it is valuable to record this information as you explore the params."`
 	Params Params `view:"no-inline" desc:"parameter values to apply to whatever matches the selector"`
 }