29 lines
683 B
Go
29 lines
683 B
Go
package text
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import (
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"fmt"
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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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type HeadingOptions struct {
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// Level 1–3 draws at ×3, ×2, ×1; zero means 1.
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Level int
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Slot pixel.Slot
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}
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// Heading is a title with a 1-dot Shade shadow.
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func Heading(c *ui.Context, s string, o HeadingOptions) *ui.Element {
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level := pixel.Or("Heading Level", o.Level, 1)
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if level > 3 {
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panic(fmt.Sprintf("text: Heading Level %d outside 1–3", level))
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}
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k, sc := pixel.K(c), 4-level
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return block(c, k, s, pixel.Measure(s)*sc+1, pixel.LineHeight*sc+1, func(g pixel.Canvas) {
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g.Text(1, 1, s, pixel.Shade, sc)
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g.Text(0, 0, s, o.Slot, sc)
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})
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}
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