43 lines
1.1 KiB
Go
43 lines
1.1 KiB
Go
package layout
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import (
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"github.com/egoist/mygo/ui"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
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)
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const tabH = pixel.LineHeight + 2
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type WindowOptions struct {
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// Title shows in a tab above the body.
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Title string
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// Padding is inside the bevel; zero means 6.
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Padding int
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}
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// Window is a beveled window with an optional title tab.
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func Window(c *ui.Context, o WindowOptions, children func()) *ui.Element {
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k := pixel.K(c)
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pad := 3 + pixel.Or("Window Padding", o.Padding, 6)
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top := 0
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e := ui.Column(c)
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if o.Title != "" {
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top = tabH - 1
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e.Role(ui.RoleGroup).Label(o.Title)
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}
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return e.Padding(k.D(top+pad), k.D(pad), k.D(pad), k.D(pad)).Draw(func(p *ui.Painter, r ui.Rect) {
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g := k.Canvas(p, r)
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if g.W < 12 || g.H < top+6 {
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return
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}
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g.Frame(0, top, g.W, g.H-top, pixel.Window, pixel.Face)
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if o.Title == "" {
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return
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}
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w := min(pixel.Measure(o.Title)+12, g.W-8)
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g.Frame(4, 0, w, tabH, pixel.Raised, pixel.Face)
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g.Rect(5, tabH-2, w-2, 4, pixel.Face)
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g.Clip(4, 0, w-2, tabH, func() { g.Text(10, 1, o.Title, pixel.Ink, 1) })
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}).Children(children)
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}
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