WIP mktchart 4

chart_type_switcher.go

@@ -0,0 +1,35 @@
+package mujica
+
+import (
+	"fmt"
+
+	"github.com/egoist/mygo/ui"
+)
+
+// ChartTypeSwitcherOptions configure a ChartTypeSwitcher.
+type ChartTypeSwitcherOptions struct {
+	Disabled bool
+}
+
+// ChartTypeSwitcher chooses how CandlestickChart draws: candles, OHLC bars, line, area or Heikin-Ashi.
+func ChartTypeSwitcher(c *ui.Context, value *ChartType, opts ChartTypeSwitcherOptions) ChoiceResult {
+	if value == nil {
+		panic("mujica: ChartTypeSwitcher needs a value")
+	}
+	if *value < ChartCandles || *value > ChartHeikinAshi {
+		panic(fmt.Sprintf("mujica: unknown ChartType %d", *value))
+	}
+	var items []ToggleItem[ChartType]
+	for t := ChartCandles; t <= ChartHeikinAshi; t++ {
+		items = append(items, ToggleItem[ChartType]{Value: t, Label: msg(c, fmt.Sprintf("chart_type_switcher.type%d", t))})
+	}
+	sel := []ChartType{*value}
+	var r ChoiceResult
+	ui.Row(c).Disabled(opts.Disabled).Children(func() {
+		r = ToggleGroup(c, &sel, items, ToggleGroupOptions{Label: msg(c, "chart_type_switcher.label")})
+	})
+	if r.Changed() {
+		*value = sel[0]
+	}
+	return r
+}