align ctop header on resize, add keybinding to help dialog

grid.go

@@ -206,6 +206,7 @@ func Display(g *Grid) bool {
 	})
 
 	ui.Handle("/sys/wnd/resize", func(e ui.Event) {
+		g.header.Align()
 		ui.Body.Width = ui.TermWidth()
 		log.Infof("resize: width=%v max-rows=%v", ui.Body.Width, g.maxRows)
 		g.redrawRows()

menus.go

@@ -9,6 +9,7 @@ import (
 
 var helpDialog = []menu.Item{
 	menu.Item{"[h] - open this help dialog", ""},
+	menu.Item{"[H] - toggle cTop header", ""},
 	menu.Item{"[s] - select container sort field", ""},
 	menu.Item{"[r] - reverse container sort order", ""},
 	menu.Item{"[q] - exit ctop", ""},

widgets/header.go

@@ -17,8 +17,8 @@ type CTopHeader struct {
 func NewCTopHeader() *CTopHeader {
 	return &CTopHeader{
 		Time:   headerPar(2, timeStr()),
-		Count:  headerPar(22, "-"),
-		Filter: headerPar(42, ""),
+		Count:  headerPar(27, "-"),
+		Filter: headerPar(47, ""),
 		bg:     headerBg(),
 	}
 }
@@ -29,6 +29,10 @@ func (c *CTopHeader) Render() {
 	ui.Render(c.Time, c.Count, c.Filter)
 }
 
+func (c *CTopHeader) Align() {
+	c.bg.SetWidth(ui.TermWidth() - 1)
+}
+
 func (c *CTopHeader) Height() int {
 	return c.bg.Height
 }
@@ -65,7 +69,8 @@ func (c *CTopHeader) SetFilter(val string) {
 }
 
 func timeStr() string {
-	return time.Now().Local().Format("15:04:05 MST")
+	ts := time.Now().Local().Format("15:04:05 MST")
+	return fmt.Sprintf("cTop - %s", ts)
 }
 
 func headerPar(x int, s string) *ui.Par {