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https://github.com/vsariola/sointu.git
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88 lines
2.1 KiB
Go
88 lines
2.1 KiB
Go
package tracker
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import (
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"fmt"
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"image"
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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/unit"
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)
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func (t *Tracker) Layout(gtx layout.Context) {
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paint.FillShape(gtx.Ops, black, clip.Rect(image.Rect(0, 0, gtx.Constraints.Max.X, gtx.Constraints.Max.Y)).Op())
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layout.UniformInset(unit.Dp(2)).Layout(gtx, func(gtx2 layout.Context) layout.Dimensions {
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return layout.Flex{Axis: layout.Vertical}.Layout(gtx2,
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layout.Rigid(t.layoutControls),
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layout.Rigid(t.darkLine(true)),
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layout.Flexed(1, Raised(t.layoutTracker)))
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})
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}
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func (t *Tracker) layoutTracker(gtx layout.Context) layout.Dimensions {
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flexTracks := make([]layout.FlexChild, len(t.song.Tracks))
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t.playRowPatMutex.RLock()
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defer t.playRowPatMutex.RUnlock()
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playPat := t.PlayPattern
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if !t.Playing {
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playPat = -1
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}
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for i, trk := range t.song.Tracks {
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flexTracks[i] = layout.Rigid(Lowered(t.layoutTrack(
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trk.Patterns,
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trk.Sequence,
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t.ActiveTrack == i,
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t.CursorRow,
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t.DisplayPattern,
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t.CursorColumn,
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t.PlayRow,
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playPat,
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)))
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}
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return layout.Flex{Axis: layout.Horizontal}.Layout(gtx,
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flexTracks...,
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)
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}
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func (t *Tracker) layoutControls(gtx layout.Context) layout.Dimensions {
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gtx.Constraints.Min.Y = 200
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gtx.Constraints.Max.Y = 200
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playPat := t.PlayPattern
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if !t.Playing {
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playPat = -1
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}
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return layout.Flex{Axis: layout.Horizontal}.Layout(gtx,
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layout.Rigid(Raised(t.layoutPatterns(
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t.song.Tracks,
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t.ActiveTrack,
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t.DisplayPattern,
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t.CursorColumn,
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playPat,
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))),
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layout.Rigid(t.darkLine(false)),
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layout.Flexed(1, Raised(Label(fmt.Sprintf("Current octave: %v", t.CurrentOctave), white))),
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)
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}
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func (t *Tracker) darkLine(horizontal bool) layout.Widget {
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return func(gtx layout.Context) layout.Dimensions {
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if horizontal {
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gtx.Constraints.Min.Y = 1
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gtx.Constraints.Max.Y = 1
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} else {
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gtx.Constraints.Min.X = 1
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gtx.Constraints.Max.X = 1
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}
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defer op.Push(gtx.Ops).Pop()
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clip.Rect{Max: gtx.Constraints.Max}.Add(gtx.Ops)
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paint.FillShape(gtx.Ops, black, clip.Rect{Max: image.Pt(gtx.Constraints.Max.X, gtx.Constraints.Max.Y)}.Op())
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return layout.Dimensions{Size: gtx.Constraints.Max}
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}
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}
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