integrate widget order, toggling into global config and compact grid

config/file.go

@@ -16,22 +16,33 @@ var (
 type File struct {
 	Options map[string]string `toml:"options"`
 	Toggles map[string]bool   `toml:"toggles"`
+	Widgets []Widget          `toml:"widget"`
 }
 
 func exportConfig() File {
+	lock.RLock()
+	defer lock.RUnlock()
+
 	c := File{
 		Options: make(map[string]string),
 		Toggles: make(map[string]bool),
+		Widgets: make([]Widget, len(GlobalWidgets)),
 	}
+
 	for _, p := range GlobalParams {
 		c.Options[p.Key] = p.Val
 	}
 	for _, sw := range GlobalSwitches {
 		c.Toggles[sw.Key] = sw.Val
 	}
+	for n, w := range GlobalWidgets {
+		c.Widgets[n] = *w
+	}
+
 	return c
 }
 
+//
 func Read() error {
 	var config File
 
@@ -50,6 +61,10 @@ func Read() error {
 	for k, v := range config.Toggles {
 		UpdateSwitch(k, v)
 	}
+	for _, w := range config.Widgets {
+		UpdateWidget(strings.ToLower(w.Name), w.Enabled)
+	}
+
 	return nil
 }
 

config/main.go

@@ -3,6 +3,7 @@ package config
 import (
 	"fmt"
 	"os"
+	"sync"
 
 	"github.com/bcicen/ctop/logging"
 )
@@ -10,17 +11,23 @@ import (
 var (
 	GlobalParams   []*Param
 	GlobalSwitches []*Switch
+	GlobalWidgets  []*Widget
+	lock           sync.RWMutex
 	log            = logging.Init()
 )
 
 func Init() {
-	for _, p := range params {
+	for _, p := range defaultParams {
 		GlobalParams = append(GlobalParams, p)
-		log.Infof("loaded config param: %s: %s", quote(p.Key), quote(p.Val))
+		log.Infof("loaded default config param: %s: %s", quote(p.Key), quote(p.Val))
 	}
-	for _, s := range switches {
+	for _, s := range defaultSwitches {
 		GlobalSwitches = append(GlobalSwitches, s)
-		log.Infof("loaded config switch: %s: %t", quote(s.Key), s.Val)
+		log.Infof("loaded default config switch: %s: %t", quote(s.Key), s.Val)
+	}
+	for _, w := range defaultWidgets {
+		GlobalWidgets = append(GlobalWidgets, w)
+		log.Infof("loaded default widget: %s: %t", quote(w.Name), w.Enabled)
 	}
 }
 

config/param.go

@@ -1,7 +1,7 @@
 package config
 
 // defaults
-var params = []*Param{
+var defaultParams = []*Param{
 	&Param{
 		Key:   "filterStr",
 		Val:   "",
@@ -27,6 +27,9 @@ type Param struct {
 
 // Get Param by key
 func Get(k string) *Param {
+	lock.RLock()
+	defer lock.RUnlock()
+
 	for _, p := range GlobalParams {
 		if p.Key == k {
 			return p
@@ -43,7 +46,10 @@ func GetVal(k string) string {
 // Set param value
 func Update(k, v string) {
 	p := Get(k)
-	log.Noticef("config change: %s: %s -> %s", k, quote(p.Val), quote(v))
+	log.Noticef("config change [%s]: %s -> %s", k, quote(p.Val), quote(v))
+
+	lock.Lock()
+	defer lock.Unlock()
 	p.Val = v
 	// log.Errorf("ignoring update for non-existant parameter: %s", k)
 }

config/switch.go

@@ -1,7 +1,7 @@
 package config
 
 // defaults
-var switches = []*Switch{
+var defaultSwitches = []*Switch{
 	&Switch{
 		Key:   "sortReversed",
 		Val:   false,
@@ -37,6 +37,9 @@ type Switch struct {
 
 // GetSwitch returns Switch by key
 func GetSwitch(k string) *Switch {
+	lock.RLock()
+	defer lock.RUnlock()
+
 	for _, sw := range GlobalSwitches {
 		if sw.Key == k {
 			return sw
@@ -52,8 +55,12 @@ func GetSwitchVal(k string) bool {
 
 func UpdateSwitch(k string, val bool) {
 	sw := GetSwitch(k)
+
+	lock.Lock()
+	defer lock.Unlock()
+
 	if sw.Val != val {
-		log.Noticef("config change: %s: %t -> %t", k, sw.Val, val)
+		log.Noticef("config change [%s]: %t -> %t", k, sw.Val, val)
 		sw.Val = val
 	}
 }
@@ -61,8 +68,12 @@ func UpdateSwitch(k string, val bool) {
 // Toggle a boolean switch
 func Toggle(k string) {
 	sw := GetSwitch(k)
+
+	lock.Lock()
+	defer lock.Unlock()
+
 	newVal := !sw.Val
-	log.Noticef("config change: %s: %t -> %t", k, sw.Val, newVal)
+	log.Noticef("config change [%s]: %t -> %t", k, sw.Val, newVal)
 	sw.Val = newVal
 	//log.Errorf("ignoring toggle for non-existant switch: %s", k)
 }

config/widget.go

@@ -0,0 +1,122 @@
+package config
+
+import (
+	"strings"
+)
+
+// defaults
+var defaultWidgets = []*Widget{
+	&Widget{
+		Name:    "status",
+		Enabled: true,
+	},
+	&Widget{
+		Name:    "name",
+		Enabled: true,
+	},
+	&Widget{
+		Name:    "id",
+		Enabled: true,
+	},
+	&Widget{
+		Name:    "cpu",
+		Enabled: true,
+	},
+	&Widget{
+		Name:    "mem",
+		Enabled: true,
+	},
+	&Widget{
+		Name:    "net",
+		Enabled: true,
+	},
+	&Widget{
+		Name:    "io",
+		Enabled: true,
+	},
+	&Widget{
+		Name:    "pids",
+		Enabled: true,
+	},
+}
+
+type Widget struct {
+	Name    string
+	Enabled bool
+}
+
+// GetWidget returns a Widget by name
+func GetWidget(name string) *Widget {
+	lock.RLock()
+	defer lock.RUnlock()
+
+	for _, w := range GlobalWidgets {
+		if w.Name == name {
+			return w
+		}
+	}
+	log.Errorf("widget name not found: %s", name)
+	return &Widget{} // default
+}
+
+// Widgets returns a copy of all configurable Widgets, in order
+func Widgets() []Widget {
+	a := make([]Widget, len(GlobalWidgets))
+
+	lock.RLock()
+	defer lock.RUnlock()
+
+	for n, w := range GlobalWidgets {
+		a[n] = *w
+	}
+	return a
+}
+
+// EnabledWidgets returns an ordered array of enabled widget names
+func EnabledWidgets() (a []string) {
+	for _, w := range Widgets() {
+		if w.Enabled {
+			a = append(a, w.Name)
+		}
+	}
+	return a
+}
+
+func UpdateWidget(name string, enabled bool) {
+	w := GetWidget(name)
+	oldVal := w.Enabled
+	log.Noticef("config change [%s-enabled]: %t -> %t", name, oldVal, enabled)
+
+	lock.Lock()
+	defer lock.Unlock()
+	w.Enabled = enabled
+}
+
+func ToggleWidgetEnabled(name string) {
+	w := GetWidget(name)
+	newVal := !w.Enabled
+	log.Noticef("config change [%s-enabled]: %t -> %t", name, w.Enabled, newVal)
+
+	lock.Lock()
+	defer lock.Unlock()
+	w.Enabled = newVal
+}
+
+// UpdateWidgets replaces existing ordered widgets with those provided
+func UpdateWidgets(newWidgets []Widget) {
+	oldOrder := widgetNames()
+	lock.Lock()
+	for n, w := range newWidgets {
+		GlobalWidgets[n] = &w
+	}
+	lock.Unlock()
+	log.Noticef("config change [widget-order]: %s -> %s", oldOrder, widgetNames())
+}
+
+func widgetNames() string {
+	a := make([]string, len(GlobalWidgets))
+	for n, w := range Widgets() {
+		a[n] = w.Name
+	}
+	return strings.Join(a, ", ")
+}

cwidgets/compact/gauge.go

@@ -5,6 +5,7 @@ import (
 
 	"github.com/bcicen/ctop/cwidgets"
 	"github.com/bcicen/ctop/models"
+
 	ui "github.com/gizak/termui"
 )
 

cwidgets/compact/grid.go

@@ -17,11 +17,7 @@ type CompactGrid struct {
 
 func NewCompactGrid() *CompactGrid {
 	cg := &CompactGrid{header: NewCompactHeader()}
-	for _, wFn := range allCols {
-		w := wFn()
-		cg.cols = append(cg.cols, w)
-		cg.header.addFieldPar(w.Header())
-	}
+	cg.RebuildHeader()
 	return cg
 }
 
@@ -41,6 +37,14 @@ func (cg *CompactGrid) Align() {
 	}
 }
 
+func (cg *CompactGrid) RebuildHeader() {
+	cg.cols = newRowWidgets()
+	cg.header.clearFieldPars()
+	for _, col := range cg.cols {
+		cg.header.addFieldPar(col.Header())
+	}
+}
+
 func (cg *CompactGrid) Clear()         { cg.Rows = []RowBufferer{} }
 func (cg *CompactGrid) GetHeight() int { return len(cg.Rows) + cg.header.Height }
 func (cg *CompactGrid) SetX(x int)     { cg.X = x }

cwidgets/compact/header.go

@@ -51,6 +51,10 @@ func (row *CompactHeader) Buffer() ui.Buffer {
 	return buf
 }
 
+func (row *CompactHeader) clearFieldPars() {
+	row.pars = []*ui.Par{}
+}
+
 func (row *CompactHeader) addFieldPar(s string) {
 	p := ui.NewPar(s)
 	p.Height = row.Height

cwidgets/compact/status.go

@@ -2,6 +2,7 @@ package compact
 
 import (
 	"github.com/bcicen/ctop/models"
+
 	ui "github.com/gizak/termui"
 )
 

cwidgets/compact/text.go

@@ -5,6 +5,7 @@ import (
 
 	"github.com/bcicen/ctop/cwidgets"
 	"github.com/bcicen/ctop/models"
+
 	ui "github.com/gizak/termui"
 )