ZacharyZhang-NY
5c3c883b7d
Dialogs on DialogBase with focusable panels that harbor parked focus, popovers on PopoverBase, bubbles, drawers, sheets, a lightbox, an RPG dialogue box, notifications, a pause menu and a dithered title card. Kit.Cue moves from feedback to pixel.
77 lines
2.0 KiB
Go
77 lines
2.0 KiB
Go
package overlay
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import (
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"log/slog"
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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 SheetOptions struct {
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// Height is in dots; zero means 120.
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Height int
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Disabled bool
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}
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type SheetResult struct {
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Element *ui.Element
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// Closed is a drag down, Escape or a click outside.
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Closed bool
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}
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type sheetKey struct{}
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// Sheet rises from the bottom; drag its bar down.
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func Sheet(c *ui.Context, text string, open *bool, o SheetOptions, content func()) SheetResult {
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k := pixel.K(c)
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h := pixel.Or("Sheet Height", o.Height, 120)
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off := o.Disabled || pixel.Current(c).Inert
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home := ui.Box(c)
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pulled := ui.Local(home, sheetKey{}, func() float32 { return 0 })
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rise := k.D(arriving(c, home, *open) * h / 4)
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was := *open
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var res SheetResult
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res.Element = ui.DialogBase(c, open, func(back, panel *ui.Element) {
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dim(k, back, pixel.Back, 8)
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panel.Label(text).Focusable().FocusRing(false).Draw(func(p *ui.Painter, r ui.Rect) {
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g := k.Canvas(p, r)
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g.Frame(0, 0, g.W, g.H, pixel.Window, pixel.Face)
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}).Children(func() {
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pixel.Harbor(c, panel, func() {
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bar := ui.Box(c).FillWidth().Height(k.D(10)).Role(ui.RoleNone)
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_, dy, held := bar.Dragged()
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switch {
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case off:
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*pulled = 0
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case held:
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*pulled = max(0, *pulled+dy)
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case *pulled > 0:
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if *pulled > k.D(h/3) {
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// A release is no drag: build again, closed.
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*open = false
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c.Invalidate()
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}
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*pulled = 0
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}
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bar.Draw(func(p *ui.Painter, r ui.Rect) {
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g := k.Canvas(p, r)
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g.Rect((g.W-24)/2, 4, 24, 2, pixel.Shade)
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})
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ui.Column(c).Grow(1).Padding(0, k.D(8), k.D(8), k.D(8)).Children(func() { body(c, o.Disabled, content) })
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})
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})
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// Placed after the bar, so a release lands at once.
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drop := float32(int(*pulled/k.Dot())) * k.Dot()
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panel.Absolute().Left(0).Right(0).Bottom(-rise - drop).Height(k.D(h))
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})
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res.Closed = was && !*open
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if !*open {
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*pulled = 0
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}
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if res.Closed {
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slog.Debug("8bit: sheet closed", "label", text)
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}
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return res
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}
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