Reuse redraws to decrease cpu load

ui/parameters.go

@@ -9,7 +9,7 @@ var pu = []key{
 	{yabl.PPuPresentEnergy, yabl.FPresentCurrent, 4},
 	{yabl.PCpuPresentEnergy, yabl.FPresentCurrent, 5},
 	{yabl.PPuPeriphery, yabl.FConnectorInsert, 6},
-	{yabl.PPuPeriphery, yabl.FDebugContactorOn, 7},
+	{yabl.PPuPeriphery, yabl.FContactorOn, 7},
 	{yabl.PPuPeriphery, yabl.FConnectorLocked, 8},
 	{yabl.PPuPeriphery, yabl.FCpLineLevel, 9},
 	{yabl.PPuPeriphery, yabl.FIsolationState, 10},
@@ -23,7 +23,8 @@ var pu = []key{
 	{yabl.PCpuEnergySettings, yabl.FVoltageMax, 18},
 	{yabl.PPuDebug, yabl.FDebugModeOn, 19},
 	{yabl.PPuDebug, yabl.FDebugContactorOutputOn, 20},
-	{yabl.PPuErrors, yabl.FBoardReady, 21},
+	{yabl.PPuPeriphery, yabl.FDebugContactorOn, 21},
+	{yabl.PPuErrors, yabl.FBoardReady, 22},
 }
 
 var pu_errors = []key{

ui/table.go

@@ -3,6 +3,7 @@ package ui
 import (
 	"cli-mon/yabl"
 	"fmt"
+	"github.com/gdamore/tcell/v2"
 	tview "github.com/rivo/tview"
 	"reflect"
 )
@@ -32,14 +33,14 @@ func (t *table) header(header string) *table {
 
 func (t *table) columns(name string, cols int) *table {
 	for i := 1; i <= cols; i++ {
-		t.SetCell(0, i, tview.NewTableCell(fmt.Sprintf("%s %d", name, i)).SetExpansion(2))
+		t.SetCell(0, i, tview.NewTableCell(fmt.Sprintf("%s %d", name, i)).SetExpansion(2)).SetBackgroundColor(tcell.ColorDefault)
 	}
 	return t
 }
 
 func (t *table) rows(name string, rows int) *table {
 	for i := 1; i <= rows; i++ {
-		t.SetCell(i, 0, tview.NewTableCell(fmt.Sprintf("%s %d", name, i))) //.SetExpansion(2))
+		t.SetCell(i, 0, tview.NewTableCell(fmt.Sprintf("%s %d", name, i))).SetBackgroundColor(tcell.ColorDefault) //.SetExpansion(2))
 	}
 	return t
 }
@@ -47,7 +48,7 @@ func (t *table) rows(name string, rows int) *table {
 func newTable(params []key, min, max int, invert bool, short bool) *table {
 	t := &table{}
 	t.Box = tview.NewBox()
-	t.SetBorderColor(tview.Styles.GraphicsColor)
+	//t.SetBorderColor(tview.Styles.GraphicsColor)
 	t.SetSeparator(' ')
 	t.SetContent(nil)
 	t.SetBorders(true)
@@ -59,7 +60,7 @@ func newTable(params []key, min, max int, invert bool, short bool) *table {
 		for i := min; i <= max; i++ {
 			k := param
 			k.id = uint(i)
-			cell := tview.NewTableCell("")
+			cell := tview.NewTableCell("").SetBackgroundColor(tcell.ColorDefault)
 			t.views[k] = cell
 			var col = i
 			if min == 0 {
@@ -79,10 +80,11 @@ func newTable(params []key, min, max int, invert bool, short bool) *table {
 			desc = fmt.Sprintf("%s.%s", param.action, param.field)
 		}
 
+		cell := tview.NewTableCell(desc).SetBackgroundColor(tcell.ColorDefault)
 		if !invert {
-			t.SetCell(int(param.id), 0, tview.NewTableCell(desc))
+			t.SetCell(int(param.id), 0, cell)
 		} else {
-			t.SetCell(0, int(param.id), tview.NewTableCell(desc))
+			t.SetCell(0, int(param.id), cell)
 		}
 	}
 

ui/ui.go

@@ -6,6 +6,7 @@ import (
 	"github.com/gdamore/tcell/v2"
 	"github.com/rivo/tview"
 	"os"
+	"time"
 )
 
 const (
@@ -21,6 +22,7 @@ const (
 	connectorCount               = 6
 	contactorsCount              = 18
 	convertersCount              = 18
+	redrawMillis                 = 500
 )
 
 type page struct {
@@ -38,6 +40,8 @@ type UI interface {
 type gui struct {
 	app                   *tview.Application
 	pages                 *tview.Pages
+	redraw                bool
+	ticker                *time.Ticker
 	pu                    *table
 	puErrors              *table
 	contactorsErrors      *table
@@ -99,8 +103,10 @@ func (g *gui) Consume(event *yabl.Event) {
 		g.cpu.update(event)
 	case *yabl.CpuDebug:
 		g.cpu.update(event)
+	default:
+		return
 	}
-	g.app.Draw()
+	g.redraw = true
 }
 
 func NewUI() UI {
@@ -193,10 +199,23 @@ func NewUI() UI {
 		return event
 	})
 
+	g.redraw = true
+
 	return g
 }
 
 func (g *gui) Start() {
+	g.ticker = time.NewTicker(redrawMillis * time.Millisecond)
+
+	go func() {
+		for _ = range g.ticker.C {
+			if g.redraw {
+				g.app.Draw()
+				g.redraw = false
+			}
+		}
+	}()
+
 	go func() {
 		if err := g.app.SetRoot(g.pages, true).EnableMouse(true).Run(); err != nil {
 			panic(err)
@@ -205,6 +224,7 @@ func (g *gui) Start() {
 }
 
 func (g *gui) Stop() {
+	g.ticker.Stop()
 	g.app.Stop()
 	os.Exit(0)
 }