97 lines
3.1 KiB
Go
97 lines
3.1 KiB
Go
package mujica
|
|
|
|
import (
|
|
"fmt"
|
|
"log/slog"
|
|
"time"
|
|
|
|
"github.com/egoist/mygo/ui"
|
|
|
|
"mujicaui/theme"
|
|
)
|
|
|
|
// MarketBreadth counts the issues that rose, fell and stayed flat.
|
|
type MarketBreadth struct{ Advancing, Declining, Unchanged int }
|
|
|
|
// MarketOverviewOptions configure a MarketOverview.
|
|
type MarketOverviewOptions struct {
|
|
Breadth MarketBreadth
|
|
// AsOf is when the data was taken; zero hides the stamp.
|
|
AsOf time.Time
|
|
Decimals int
|
|
Disabled bool
|
|
}
|
|
|
|
// MarketOverviewView is a built overview and the index clicked, -1 for none.
|
|
type MarketOverviewView struct {
|
|
Element *ui.Element
|
|
Chosen int
|
|
}
|
|
|
|
// MarketOverview shows index cards, advancers against decliners, and a time stamp.
|
|
func MarketOverview(c *ui.Context, indices []IndexQuote, opts MarketOverviewOptions) MarketOverviewView {
|
|
b := opts.Breadth
|
|
if b.Advancing < 0 || b.Declining < 0 || b.Unchanged < 0 {
|
|
panic("mujica: MarketOverview breadth counts must not be negative")
|
|
}
|
|
k := Tokens(c)
|
|
u := Density(c).Unit()
|
|
v := MarketOverviewView{Chosen: -1}
|
|
v.Element = ui.Column(c).Gap(u * 3).Disabled(opts.Disabled)
|
|
v.Element.Children(func() {
|
|
ui.Row(c).Wrap().Gap(u * 3).Children(func() {
|
|
for i, q := range indices {
|
|
ui.Column(c).Key(q.Name).Children(func() {
|
|
if IndexCard(c, q, IndexCardOptions{Decimals: opts.Decimals, Clickable: true, Disabled: opts.Disabled}).Changed() {
|
|
v.Chosen = i
|
|
}
|
|
})
|
|
}
|
|
})
|
|
if total := b.Advancing + b.Declining + b.Unchanged; total > 0 {
|
|
marketBreadthBar(c, b, total)
|
|
}
|
|
if !opts.AsOf.IsZero() {
|
|
ui.Text(c, fmt.Sprintf(msg(c, "market_overview.as_of"), opts.AsOf.Format("2006-01-02 15:04"))).
|
|
FontSize(FontSize(c, theme.CaptionSize)).TextColor(k.TextMuted)
|
|
}
|
|
})
|
|
if v.Chosen >= 0 {
|
|
slog.Debug("mujica: market_overview choose", "index", indices[v.Chosen].Name)
|
|
}
|
|
return v
|
|
}
|
|
|
|
// marketBreadthBar splits a bar by counts; each part has an arrow and a number.
|
|
func marketBreadthBar(c *ui.Context, b MarketBreadth, total int) {
|
|
k := Tokens(c)
|
|
u := Density(c).Unit()
|
|
up, down := trendColor(c, 1), trendColor(c, -1)
|
|
label := fmt.Sprintf(msg(c, "market_overview.breadth"), b.Advancing, b.Declining, b.Unchanged)
|
|
ui.Column(c).Gap(u).MaxWidth(640).FillWidth().Role(ui.RoleMeter).Label(label).Children(func() {
|
|
ui.Box(c).FillWidth().Height(10).Draw(func(p *ui.Painter, r ui.Rect) {
|
|
x := r.X
|
|
for _, part := range []struct {
|
|
n int
|
|
col ui.Color
|
|
}{{b.Advancing, up}, {b.Unchanged, k.Border}, {b.Declining, down}} {
|
|
w := r.W * float32(part.n) / float32(total)
|
|
p.Fill(ui.Rect{X: x, Y: r.Y, W: max(w-1, 0), H: r.H}, part.col, 1)
|
|
x += w
|
|
}
|
|
})
|
|
ui.Row(c).Gap(u * 4).Children(func() {
|
|
for _, part := range []struct {
|
|
n int
|
|
sign int
|
|
key string
|
|
}{{b.Advancing, 1, "market_overview.up"}, {b.Unchanged, 0, "market_overview.flat"}, {b.Declining, -1, "market_overview.down"}} {
|
|
ui.Row(c).Gap(u).AlignItems(ui.Center).TextColor(trendColor(c, part.sign)).Children(func() {
|
|
ui.Icon(c, trendIcon(part.sign)).Size(12, 12)
|
|
ui.Text(c, fmt.Sprintf(msg(c, part.key), part.n)).FontSize(FontSize(c, theme.CaptionSize)).FontFeatures("tnum")
|
|
})
|
|
}
|
|
})
|
|
})
|
|
}
|