71 lines
2.3 KiB
Go
71 lines
2.3 KiB
Go
package mujica
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import (
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"github.com/egoist/mygo/ui"
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"mujicaui/internal"
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"mujicaui/theme"
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)
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// CardOptions configure a Card.
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type CardOptions struct {
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// Title heads the card in the serif face; empty shows no header.
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Title string
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// Footer builds the bottom slot, below a divider; nil shows none.
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Footer func()
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// Decorated draws a double border and corner ornaments in Ornament.
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Decorated bool
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}
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// cardInset is how far the inner line of a decorated card sits inside.
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const cardInset float32 = 4
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// Card groups content on a surface with an outline. It adds no click behavior.
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func Card(c *ui.Context, opts CardOptions, body func()) *ui.Element {
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k := Tokens(c)
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u := Density(c).Unit()
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pad := u * 4
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if opts.Decorated {
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pad += cardInset + 2
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}
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card := ui.Column(c).Background(k.Surface).Radius(theme.CardRadius).Gap(u * 3).Padding(pad).Role(ui.RoleGroup)
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if opts.Title != "" {
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card.Label(opts.Title)
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}
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if opts.Decorated {
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card.Border(theme.BorderWidth, k.Ornament).DrawOver(func(p *ui.Painter, r ui.Rect) {
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cardOrnament(p, r, k.Ornament)
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})
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} else {
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card.Border(theme.BorderWidth, k.Border)
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}
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card.Children(func() {
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if opts.Title != "" {
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ui.Text(c, opts.Title).Font(theme.SerifFont).FontSize(FontSize(c, theme.H3Size)).FontWeight(600).LineHeight(1.3)
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if opts.Decorated {
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ui.Box(c).Height(7).FillWidth().Shrink(0).Draw(func(p *ui.Painter, r ui.Rect) {
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cy := r.Y + r.H/2
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p.Line(r.X, cy, r.X+r.W/2-6, cy, 1, k.Ornament)
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p.Line(r.X+r.W/2+6, cy, r.X+r.W, cy, 1, k.Ornament)
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p.FillPath(internal.Diamond(internal.Snap(p, r.X+r.W/2), internal.Snap(p, cy), 7), k.Ornament)
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})
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}
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}
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ui.Column(c).Gap(u * 2).Children(body)
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if opts.Footer != nil {
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ui.Box(c).Height(1).FillWidth().Shrink(0).Background(k.Border)
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ui.Row(c).Gap(u * 2).Justify(ui.End).AlignItems(ui.Center).Wrap().Children(opts.Footer)
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}
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})
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return card
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}
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// cardOrnament draws the inner line and the four corner diamonds.
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func cardOrnament(p *ui.Painter, r ui.Rect, col ui.Color) {
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in := ui.Rect{X: r.X + cardInset, Y: r.Y + cardInset, W: r.W - 2*cardInset, H: r.H - 2*cardInset}
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p.Stroke(in, col, 1, 1)
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for _, pt := range [4][2]float32{{in.X, in.Y}, {in.X + in.W, in.Y}, {in.X, in.Y + in.H}, {in.X + in.W, in.Y + in.H}} {
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p.FillPath(internal.Diamond(internal.Snap(p, pt[0]), internal.Snap(p, pt[1]), 9), col)
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}
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}
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