move field header into CompactGrid, add Align() method

containermap.go

@@ -131,11 +131,6 @@ func (cm *ContainerMap) UpdateLoop() {
 	}
 }
 
-// Return number of containers/rows
-func (cm *ContainerMap) Len() uint {
-	return uint(len(cm.containers))
-}
-
 // Get a single container, by ID
 func (cm *ContainerMap) Get(id string) (*Container, bool) {
 	for _, c := range cm.containers {

grid.go

@@ -8,27 +8,25 @@ import (
 	ui "github.com/gizak/termui"
 )
 
-var cGrid = &widgets.CompactGrid{}
+var cGrid = widgets.NewCompactGrid()
 
 func maxRows() int {
 	return ui.TermHeight() - 2 - cGrid.Y
 }
 
 type Grid struct {
-	cursorID    string // id of currently selected container
-	cmap        *ContainerMap
-	containers  Containers // sorted slice of containers
-	header      *widgets.CTopHeader
-	fieldHeader *widgets.CompactHeader
+	cursorID   string // id of currently selected container
+	cmap       *ContainerMap
+	containers Containers // sorted slice of containers
+	header     *widgets.CTopHeader
 }
 
 func NewGrid() *Grid {
 	cmap := NewContainerMap()
 	g := &Grid{
-		cmap:        cmap,
-		containers:  cmap.All(),
-		header:      widgets.NewCTopHeader(),
-		fieldHeader: widgets.NewCompactHeader(),
+		cmap:       cmap,
+		containers: cmap.All(),
+		header:     widgets.NewCTopHeader(),
 	}
 	return g
 }
@@ -88,7 +86,6 @@ func (g *Grid) cursorDown() {
 func (g *Grid) redrawRows() {
 	// reinit body rows
 	cGrid.Rows = []widgets.ContainerWidgets{}
-	ui.Clear()
 
 	// build layout
 	y := 1
@@ -98,10 +95,10 @@ func (g *Grid) redrawRows() {
 		g.header.Render()
 		y += g.header.Height()
 	}
+	cGrid.SetY(y)
 
 	var cursorVisible bool
 	max := maxRows()
-	y += 2 // for field header
 	for n, c := range g.containers.Filter() {
 		if n >= max {
 			break
@@ -111,20 +108,16 @@ func (g *Grid) redrawRows() {
 			cursorVisible = true
 		}
 	}
-	cGrid.SetY(y)
-	cGrid.SetWidth(ui.TermWidth())
-
-	//log.Infof("rows: %d", len(cGrid.Rows))
-	//log.Infof("Width: %d", cGrid.Width)
-	//log.Infof("Height: %d", cGrid.Height)
-	//log.Infof("X: %d", cGrid.X)
-	//log.Infof("Y: %d", cGrid.Y)
 
 	if !cursorVisible {
 		g.cursorReset()
 	}
 
-	ui.Render(g.fieldHeader)
+	ui.Clear()
+	if config.GetSwitchVal("enableHeader") {
+		g.header.Render()
+	}
+	cGrid.Align()
 	ui.Render(cGrid)
 }
 

widgets/compact.go

@@ -21,26 +21,37 @@ type CompactGrid struct {
 	X, Y   int
 	Width  int
 	Height int
+	header *CompactHeader
 }
 
-func (c CompactGrid) SetX(x int) { c.X = x }
-func (c CompactGrid) SetY(y int) {
-	c.Y = y
+func NewCompactGrid() *CompactGrid {
+	return &CompactGrid{
+		header: NewCompactHeader(),
+	}
+}
+
+func (c *CompactGrid) Align() {
+	// Update y recursively
+	c.header.SetY(c.Y)
+	y := c.Y + 1
 	for n, r := range c.Rows {
-		log.Infof("row %d: y=%d", n, c.Y+n)
-		r.SetY(c.Y + n)
+		r.SetY(y + n)
 	}
-}
-func (c CompactGrid) GetHeight() int { return len(c.Rows) }
-func (c CompactGrid) SetWidth(w int) {
-	c.Width = w
+	// Update width recursively
+	c.header.SetWidth(c.Width)
 	for _, r := range c.Rows {
-		r.SetWidth(w)
+		r.SetWidth(c.Width)
 	}
 }
 
-func (c CompactGrid) Buffer() ui.Buffer {
+func (c *CompactGrid) GetHeight() int { return len(c.Rows) }
+func (c *CompactGrid) SetX(x int)     { c.X = x }
+func (c *CompactGrid) SetY(y int)     { c.Y = y }
+func (c *CompactGrid) SetWidth(w int) { c.Width = w }
+
+func (c *CompactGrid) Buffer() ui.Buffer {
 	buf := ui.NewBuffer()
+	buf.Merge(c.header.Buffer())
 	for _, r := range c.Rows {
 		buf.Merge(r.Buffer())
 	}
@@ -74,6 +85,29 @@ func NewCompactHeader() *CompactHeader {
 	return header
 }
 
+func (c *CompactHeader) SetWidth(w int) {
+	x := 1
+	statusWidth := 3
+	autoWidth := (w - statusWidth) / 5
+	for n, col := range c.pars {
+		if n == 0 {
+			col.SetX(x)
+			col.SetWidth(statusWidth)
+			x += statusWidth
+			continue
+		}
+		col.SetX(x)
+		col.SetWidth(autoWidth)
+		x += autoWidth
+	}
+}
+
+func (c *CompactHeader) SetY(y int) {
+	for _, p := range c.pars {
+		p.SetY(y)
+	}
+}
+
 func (c *CompactHeader) Buffer() ui.Buffer {
 	buf := ui.NewBuffer()
 	for _, p := range c.pars {
@@ -130,7 +164,6 @@ func (w *Compact) SetWidth(width int) {
 	x := 1
 	statusWidth := 3
 	autoWidth := (width - statusWidth) / 5
-	log.Infof("autowidth: %d", autoWidth)
 	for n, col := range w.all() {
 		if n == 0 {
 			col.SetX(x)