Improve digitalclock module (#1581)

* digitalclock: Add bold font

* digitalclock: Add additional settings

- Separate enabling for date, utc and epoch lines
- Ability to show date in widget title
- Central align in widget

* Fix GO-W1027 linter issue

* Fix another linter issue

modules/digitalclock/display.go

@@ -7,7 +7,7 @@ func mergeLines(outString []string) string {
 }
 
 func renderWidget(widgetSettings Settings) string {
-	outputStrings := []string{}
+	var outputStrings []string
 
 	clockString, needBorder := renderClock(widgetSettings)
 	if needBorder {
@@ -17,14 +17,26 @@ func renderWidget(widgetSettings Settings) string {
 	}
 
 	if widgetSettings.withDate {
-		outputStrings = append(outputStrings, getDate(widgetSettings.dateFormat, widgetSettings.withDatePrefix), getUTC(), getEpoch())
+		outputStrings = append(outputStrings, getDate(widgetSettings.dateFormat, widgetSettings.withDatePrefix))
+	}
+
+	if widgetSettings.withUTC {
+		outputStrings = append(outputStrings, getUTC())
+	}
+
+	if widgetSettings.withEpoch {
+		outputStrings = append(outputStrings, getEpoch())
 	}
 
 	return mergeLines(outputStrings)
 }
 
 func (widget *Widget) display() {
 	widget.Redraw(func() (string, string, bool) {
-		return widget.CommonSettings().Title, renderWidget(*widget.settings), false
+		title := widget.CommonSettings().Title
+		if widget.settings.dateTitle {
+			title = getDate(widget.settings.dateFormat, false)
+		}
+		return title, renderWidget(*widget.settings), false
 	})
 }

modules/digitalclock/fonts.go

@@ -79,10 +79,36 @@ func getBigFont() ClockFont {
 	return bigFont
 }
 
+func getBoldFont() ClockFont {
+	fontsMap := map[string][]string{
+		"1": {"██", "██", "██", "██", "██"},
+		"2": {"██████", "    ██", "██████", "██    ", "██████"},
+		"3": {"██████", "    ██", "██████", "    ██", "██████"},
+		"4": {"██  ██", "██  ██", "██████", "    ██", "    ██"},
+		"5": {"██████", "██    ", "██████", "    ██", "██████"},
+		"6": {"██████", "██    ", "██████", "██  ██", "██████"},
+		"7": {"██████", "    ██", "    ██", "    ██", "    ██"},
+		"8": {"██████", "██  ██", "██████", "██  ██", "██████"},
+		"9": {"██████", "██  ██", "██████", "    ██", "██████"},
+		"0": {"██████", "██  ██", "██  ██", "██  ██", "██████"},
+		":": {"  ", "██", "  ", "██", "  "},
+		" ": {"  ", "  ", "  ", "  ", "  "},
+		"A": {"", "", "", "", "AM"},
+		"P": {"", "", "", "", "PM"},
+	}
+
+	boldFont := ClockFont{fontRows: 5, fonts: fontsMap}
+	return boldFont
+}
+
 // getFont returns appropriate font map based on the font settings
 func getFont(widgetSettings Settings) ClockFont {
-	if strings.ToLower(widgetSettings.font) == "digitalfont" {
+	switch strings.ToLower(widgetSettings.font) {
+	case "digitalfont":
 		return getDigitalFont()
+	case "boldfont":
+		return getBoldFont()
+	default:
+		return getBigFont()
 	}
-	return getBigFont()
 }

modules/digitalclock/settings.go

@@ -18,8 +18,12 @@ type Settings struct {
 	font           string `help:"The font of the clock." values:"bigfont or digitalfont"`
 	hourFormat     string `help:"The format of the clock." values:"12 or 24"`
 	dateFormat     string `help:"The format of the date."`
+	dateTitle      bool   `help:"Whether or not to display date as widget title"`
 	withDate       bool   `help:"Whether or not to display date information"`
+	withUTC        bool   `help:"Whether or not to display UTC information"`
+	withEpoch      bool   `help:"Whether or not to display Epoch information"`
 	withDatePrefix bool   `help:"Whether or not to display Date: prefix"`
+	centerAlign    bool   `help:"Whether or not to use center align in widget"`
 }
 
 // NewSettingsFromYAML creates a new settings instance from a YAML config block
@@ -31,8 +35,12 @@ func NewSettingsFromYAML(name string, ymlConfig *config.Config, globalConfig *co
 		font:           ymlConfig.UString("font"),
 		hourFormat:     ymlConfig.UString("hourFormat", "24"),
 		dateFormat:     ymlConfig.UString("dateFormat", "Monday January 02 2006"),
+		dateTitle:      ymlConfig.UBool("dateTitle", false),
 		withDate:       ymlConfig.UBool("withDate", true),
+		withUTC:        ymlConfig.UBool("withUTC", true),
+		withEpoch:      ymlConfig.UBool("withEpoch", true),
 		withDatePrefix: ymlConfig.UBool("withDatePrefix", true),
+		centerAlign:    ymlConfig.UBool("centerAlign", false),
 	}
 
 	return &settings

modules/digitalclock/widget.go

@@ -19,6 +19,9 @@ func NewWidget(tviewApp *tview.Application, redrawChan chan bool, settings *Sett
 
 		settings: settings,
 	}
+	if settings.centerAlign {
+		widget.View.SetTextAlign(tview.AlignCenter)
+	}
 
 	return &widget
 }