ZacharyZhang-NYandClaude Opus 5.5
03e1f91706
Elements are now pass-scoped value handles: tests that read bounds after a frame bind a ui.Handle. pixel tells frames apart by the build pass's root, since the Tester clock no longer moves on its own. Fix the regressions the upgrade brought: - Clipboard reads in input handlers go through c.Services(). - MyGo notes an overlay's opener after building it, so AutoFocus inside lost it; pixel.AutoFocus focuses through a Handle, and archtest bans the raw call. Dialogs hand the focus back again. - Elements around a press stay hovered: Tooltip tells a press-given focus by focus arriving under the pointer. - The web host moves the Tester clock with real time, at most 500 ms a call, and gives components the real clock. The gallery's source index also accepts CRLF checkouts. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
41 lines
967 B
Go
41 lines
967 B
Go
package media
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import (
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"fmt"
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"math"
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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 WaveformOptions struct {
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// Height is in dots; zero means 32.
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Height int
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}
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// Waveform draws samples, ±1, as lines from the middle.
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func Waveform(c *ui.Context, text string, samples []float64, o WaveformOptions) ui.Element {
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k := pixel.K(c)
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if len(samples) == 0 {
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panic("media: Waveform has no samples")
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}
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for _, s := range samples {
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if !(s >= -1 && s <= 1) {
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panic(fmt.Sprintf("media: Waveform sample %v outside ±1", s))
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}
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}
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h := pixel.Or("Waveform Height", o.Height, 32)
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half := (h - 1) / 2
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return art(c, k, text, 2*len(samples)-1, h).Draw(func(p *ui.Painter, r ui.Rect) {
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g := k.Canvas(p, r)
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for x := 1; x < g.W; x += 2 {
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g.Dot(x, half, pixel.Faint)
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}
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for i, s := range samples {
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n := int(math.Round(s * float64(half)))
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g.VLine(2*i, min(half, half-n), max(n, -n)+1, pixel.Accent)
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}
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})
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}
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