31 lines
780 B
Go
31 lines
780 B
Go
package text
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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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var rainbow = []pixel.Slot{pixel.Bad, pixel.Warn, pixel.Good, pixel.Info, pixel.Magic}
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type RainbowTextOptions struct {
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// Band is zero for Bad, Warn, Good, Info, Magic.
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Band []pixel.Slot
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Scale int
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}
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// RainbowText gives each character the next slot of a band.
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func RainbowText(c *ui.Context, s string, o RainbowTextOptions) *ui.Element {
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k, sc := pixel.K(c), scale(o.Scale)
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band := o.Band
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if len(band) == 0 {
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band = rainbow
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}
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return block(c, k, s, pixel.Measure(s)*sc, pixel.LineHeight*sc, func(g pixel.Canvas) {
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cur := pixel.Cycle(band, g.Step(8))
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each(s, sc, func(i int, r rune, x int) {
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g.Text(x, 0, string(r), cur[i%len(cur)], sc)
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})
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})
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}
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