refactor all container widgets into subpackage

cwidgets/compact/grid.go

@@ -0,0 +1,50 @@
+package compact
+
+import (
+	"github.com/bcicen/ctop/cwidgets"
+	ui "github.com/gizak/termui"
+)
+
+type CompactGrid struct {
+	ui.GridBufferer
+	Rows   []cwidgets.ContainerWidgets
+	X, Y   int
+	Width  int
+	Height int
+	header *CompactHeader
+}
+
+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 {
+		r.SetY(y + n)
+	}
+	// Update width recursively
+	c.header.SetWidth(c.Width)
+	for _, r := range c.Rows {
+		r.SetWidth(c.Width)
+	}
+}
+
+func (c *CompactGrid) Clear()         { c.Rows = []cwidgets.ContainerWidgets{} }
+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())
+	}
+	return buf
+}