config enhancement: write location & size as a single array (flow style)

component/component.go

@@ -11,7 +11,7 @@ type Component struct {
 	*data.Consumer
 	Type          config.ComponentType
 	Title         string
-	Position      config.Position
+	Location      config.Location
 	Size          config.Size
 	RefreshRateMs int
 }
@@ -22,15 +22,15 @@ func NewComponent(dbl ui.Drawable, cmr *data.Consumer, cfg config.ComponentConfi
 		Consumer:      cmr,
 		Type:          cfg.Type,
 		Title:         cfg.Title,
-		Position:      cfg.Position,
-		Size:          cfg.Size,
+		Location:      cfg.GetLocation(),
+		Size:          cfg.GetSize(),
 		RefreshRateMs: *cfg.RefreshRateMs,
 	}
 }
 
 func (c *Component) Move(x, y int) {
-	c.Position.X += x
-	c.Position.Y += y
+	c.Location.X += x
+	c.Location.Y += y
 	c.normalize()
 }
 
@@ -41,10 +41,10 @@ func (c *Component) Resize(x, y int) {
 }
 
 func (c *Component) normalize() {
-	if c.Position.X < 0 {
-		c.Position.X = 0
+	if c.Location.X < 0 {
+		c.Location.X = 0
 	}
-	if c.Position.Y < 0 {
-		c.Position.Y = 0
+	if c.Location.Y < 0 {
+		c.Location.Y = 0
 	}
 }

component/layout/layout.go

@@ -250,8 +250,8 @@ func (l *Layout) Draw(buffer *ui.Buffer) {
 
 	for _, c := range l.Components {
 
-		x1 := math.Floor(float64(c.Position.X) * columnWidth)
-		y1 := math.Floor(float64(c.Position.Y) * rowHeight)
+		x1 := math.Floor(float64(c.Location.X) * columnWidth)
+		y1 := math.Floor(float64(c.Location.Y) * rowHeight)
 		x2 := x1 + math.Floor(float64(c.Size.X))*columnWidth
 		y2 := y1 + math.Floor(float64(c.Size.Y))*rowHeight
 

config.yml

@@ -1,11 +1,6 @@
 runcharts:
 - title: SEARCH ENGINE RESPONSE TIME (sec)
-  position:
-    w: 0
-    h: 0
-  size:
-    w: 53
-    h: 16
+  position: [[0, 0], [53, 16]]
   triggers:
   - title: Latency threshold exceeded
     condition: echo "$prev < 0.35 && $cur > 0.35" |bc -l
@@ -23,12 +18,7 @@ runcharts:
   - label: BING
     value: curl -o /dev/null -s -w '%{time_total}'  https://www.bing.com
 - title: MONGO COLLECTIONS COUNT
-  position:
-    w: 53
-    h: 0
-  size:
-    w: 27
-    h: 8
+  position: [[53, 0], [27, 8]]
   legend:
     enabled: true
     details: false
@@ -41,12 +31,7 @@ runcharts:
 barcharts:
 - title: EVENTS BY STATUS
   refresh-rate-ms: 1000
-  position:
-    w: 0
-    h: 17
-  size:
-    w: 53
-    h: 12
+  position: [[0, 17], [53, 12]]
   scale: 0
   items:
   - label: NEW
@@ -61,45 +46,25 @@ barcharts:
     value: mongo --quiet --host=localhost blog --eval "db.getCollection('posts').find({status:'INACTIVE'}).itcount()"
 gauges:
 - title: YEAR PROGRESS
-  position:
-    w: 53
-    h: 8
-  size:
-    w: 27
-    h: 2
+  position: [[53, 8], [27, 2]]
   values:
     cur: date +%j
     max: echo 365
     min: echo 0
 - title: DAY PROGRESS
-  position:
-    w: 53
-    h: 10
-  size:
-    w: 27
-    h: 2
+  position: [[53, 10], [27, 2]]
   values:
     cur: date +%H
     max: echo 24
     min: echo 0
 - title: HOUR PROGRESS
-  position:
-    w: 53
-    h: 12
-  size:
-    w: 27
-    h: 2
+  position: [[53, 12], [27, 2]]
   values:
     cur: date +%M
     max: echo 60
     min: echo 0
 - title: MINUTE PROGRESS
-  position:
-    w: 53
-    h: 14
-  size:
-    w: 27
-    h: 2
+  position: [[53, 14], [27, 2]]
   triggers:
   - title: CLOCK BELL EVERY MINUTE
     condition: '[ $label == "cur" ] && [ $cur -eq 0 ] && echo 1 || echo 0'
@@ -112,19 +77,9 @@ gauges:
     min: echo 0
 asciiboxes:
 - title: LOCAL TIME
-  position:
-    w: 53
-    h: 17
-  size:
-    w: 27
-    h: 5
+  position: [[53, 17], [27, 5]]
   value: date +%r
 - title: UTC TIME
-  position:
-    w: 53
-    h: 22
-  size:
-    w: 27
-    h: 7
+  position: [[53, 22], [27, 7]]
   value: env TZ=UTC date +%r
   font: 3d

config/component.go

@@ -19,12 +19,19 @@ const (
 type ComponentConfig struct {
 	Title         string          `yaml:"title"`
 	RefreshRateMs *int            `yaml:"refresh-rate-ms,omitempty"`
-	Position      Position        `yaml:"position"`
-	Size          Size            `yaml:"size"`
+	Position      [][]int         `yaml:"position,flow"`
 	Triggers      []TriggerConfig `yaml:"triggers,omitempty"`
 	Type          ComponentType   `yaml:",omitempty"`
 }
 
+func (c *ComponentConfig) GetLocation() Location {
+	return Location{X: c.Position[0][0], Y: c.Position[0][1]}
+}
+
+func (c *ComponentConfig) GetSize() Size {
+	return Size{X: c.Position[1][0], Y: c.Position[1][1]}
+}
+
 type TriggerConfig struct {
 	Title     string         `yaml:"title"`
 	Condition string         `yaml:"condition"`
@@ -70,25 +77,32 @@ type LegendConfig struct {
 	Details bool `yaml:"details"`
 }
 
-type Position struct {
-	X int `yaml:"w"`
-	Y int `yaml:"h"`
-}
-
-type Size struct {
-	X int `yaml:"w"`
-	Y int `yaml:"h"`
-}
-
 type Item struct {
 	Label  *string   `yaml:"label,omitempty"`
 	Script string    `yaml:"value"`
 	Color  *ui.Color `yaml:"color,omitempty"`
 }
 
+type Location struct {
+	X int
+	Y int
+}
+
+type Size struct {
+	X int
+	Y int
+}
+
 type ComponentSettings struct {
 	Type     ComponentType
 	Title    string
 	Size     Size
-	Position Position
+	Location Location
+}
+
+func getPosition(location Location, size Size) [][]int {
+	return [][]int{
+		{location.X, location.Y},
+		{size.X, size.Y},
+	}
 }

config/config.go

@@ -42,8 +42,7 @@ func Update(settings []ComponentSettings) {
 	cfg := readFile(os.Args[1])
 	for _, s := range settings {
 		componentConfig := cfg.findComponent(s.Type, s.Title)
-		componentConfig.Size = s.Size
-		componentConfig.Position = s.Position
+		componentConfig.Position = getPosition(s.Location, s.Size)
 	}
 	saveFile(cfg)
 }

event/handler.go

@@ -75,7 +75,7 @@ func (h *Handler) handleExit() {
 	var settings []config.ComponentSettings
 	for _, c := range h.layout.Components {
 		settings = append(settings,
-			config.ComponentSettings{Type: c.Type, Title: c.Title, Size: c.Size, Position: c.Position})
+			config.ComponentSettings{Type: c.Type, Title: c.Title, Size: c.Size, Location: c.Location})
 	}
 	config.Update(settings)
 }