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https://github.com/vsariola/sointu.git
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d92426a100
The Model was getting unmaintanable mess. This is an attempt to refactor/rewrite the Model so that data of certain type is exposed in standardized way, offering certain standard manipulations for that data type, and on the GUI side, certain standard widgets to tied to that data. This rewrite closes #72, #106 and #120.
82 lines
2.2 KiB
Go
82 lines
2.2 KiB
Go
package gioui
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import (
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"image"
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"image/color"
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"time"
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"gioui.org/layout"
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"gioui.org/op"
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"gioui.org/op/clip"
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"gioui.org/op/paint"
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"gioui.org/text"
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"gioui.org/unit"
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"github.com/vsariola/sointu/tracker"
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)
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type PopupAlert struct {
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alerts *tracker.Alerts
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prevUpdate time.Time
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shaper *text.Shaper
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}
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var alertSpeed = 150 * time.Millisecond
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var alertMargin = layout.UniformInset(unit.Dp(6))
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var alertInset = layout.UniformInset(unit.Dp(6))
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func NewPopupAlert(alerts *tracker.Alerts, shaper *text.Shaper) *PopupAlert {
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return &PopupAlert{alerts: alerts, shaper: shaper, prevUpdate: time.Now()}
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}
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func (a *PopupAlert) Layout(gtx C) D {
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now := time.Now()
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if a.alerts.Update(now.Sub(a.prevUpdate)) {
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op.InvalidateOp{At: now.Add(50 * time.Millisecond)}.Add(gtx.Ops)
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}
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a.prevUpdate = now
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var totalY float64
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a.alerts.Iterate(func(alert tracker.Alert) {
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var color, textColor, shadeColor color.NRGBA
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switch alert.Priority {
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case tracker.Warning:
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color = warningColor
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textColor = black
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case tracker.Error:
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color = errorColor
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textColor = black
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default:
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color = popupSurfaceColor
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textColor = white
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shadeColor = black
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}
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bgWidget := func(gtx C) D {
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paint.FillShape(gtx.Ops, color, clip.Rect{
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Max: gtx.Constraints.Min,
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}.Op())
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return D{Size: gtx.Constraints.Min}
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}
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labelStyle := LabelStyle{Text: alert.Message, Color: textColor, ShadeColor: shadeColor, Font: labelDefaultFont, Alignment: layout.Center, FontSize: unit.Sp(16), Shaper: a.shaper}
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alertMargin.Layout(gtx, func(gtx C) D {
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return layout.S.Layout(gtx, func(gtx C) D {
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defer op.Offset(image.Point{}).Push(gtx.Ops).Pop()
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gtx.Constraints.Min.X = gtx.Constraints.Max.X
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recording := op.Record(gtx.Ops)
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dims := layout.Stack{Alignment: layout.Center}.Layout(gtx,
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layout.Expanded(bgWidget),
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layout.Stacked(func(gtx C) D {
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return alertInset.Layout(gtx, labelStyle.Layout)
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}),
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)
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macro := recording.Stop()
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delta := float64(dims.Size.Y + gtx.Dp(alertMargin.Bottom))
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op.Offset(image.Point{0, int(-totalY*alert.FadeLevel + delta*(1-alert.FadeLevel))}).Add((gtx.Ops))
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totalY += delta
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macro.Add(gtx.Ops)
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return dims
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})
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})
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})
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return D{}
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}
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