mirror of
https://github.com/vsariola/sointu.git
synced 2025-07-21 22:44:50 -04:00
feat!: display the parameters as knobs in a grid
Also removed the negbandpass & neghighpass parameters and replaced them with bandpass & highpass set to -1, to fit the switches better to the GUI. Closes #51, closes #173
This commit is contained in:
parent
c3caa8de11
commit
666af9433e
428
tracker/gioui/param.go
Normal file
428
tracker/gioui/param.go
Normal file
@ -0,0 +1,428 @@
|
||||
package gioui
|
||||
|
||||
import (
|
||||
"image"
|
||||
"image/color"
|
||||
"math"
|
||||
"strconv"
|
||||
|
||||
"gioui.org/f32"
|
||||
"gioui.org/gesture"
|
||||
"gioui.org/io/event"
|
||||
"gioui.org/io/key"
|
||||
"gioui.org/io/pointer"
|
||||
"gioui.org/layout"
|
||||
"gioui.org/op"
|
||||
"gioui.org/op/clip"
|
||||
"gioui.org/op/paint"
|
||||
"gioui.org/unit"
|
||||
"gioui.org/x/stroke"
|
||||
"github.com/vsariola/sointu/tracker"
|
||||
"golang.org/x/exp/shiny/materialdesign/icons"
|
||||
)
|
||||
|
||||
type (
|
||||
ParamState struct {
|
||||
drag gesture.Drag
|
||||
dragStartPt f32.Point // used to calculate the drag amount
|
||||
dragStartVal int
|
||||
tipArea TipArea
|
||||
click gesture.Click
|
||||
clickable Clickable
|
||||
}
|
||||
|
||||
ParamWidget struct {
|
||||
Parameter tracker.Parameter
|
||||
State *ParamState
|
||||
Theme *Theme
|
||||
Focus bool
|
||||
Disabled bool
|
||||
}
|
||||
|
||||
PortStyle struct {
|
||||
Diameter unit.Dp
|
||||
StrokeWidth unit.Dp
|
||||
Color color.NRGBA
|
||||
}
|
||||
|
||||
PortWidget struct {
|
||||
Theme *Theme
|
||||
Style *PortStyle
|
||||
State *ParamState
|
||||
}
|
||||
|
||||
KnobStyle struct {
|
||||
Diameter unit.Dp
|
||||
StrokeWidth unit.Dp
|
||||
Bg color.NRGBA
|
||||
Pos struct {
|
||||
Color color.NRGBA
|
||||
Bg color.NRGBA
|
||||
}
|
||||
Neg struct {
|
||||
Color color.NRGBA
|
||||
Bg color.NRGBA
|
||||
}
|
||||
Indicator struct {
|
||||
Color color.NRGBA
|
||||
Width unit.Dp
|
||||
InnerDiam unit.Dp
|
||||
OuterDiam unit.Dp
|
||||
}
|
||||
Value LabelStyle
|
||||
Title LabelStyle
|
||||
}
|
||||
|
||||
KnobWidget struct {
|
||||
Theme *Theme
|
||||
Value tracker.Parameter
|
||||
State *ParamState
|
||||
Style *KnobStyle
|
||||
Hint string
|
||||
Scroll bool
|
||||
}
|
||||
|
||||
SwitchStyle struct {
|
||||
Neutral struct {
|
||||
Fg color.NRGBA
|
||||
Bg color.NRGBA
|
||||
}
|
||||
Pos struct {
|
||||
Fg color.NRGBA
|
||||
Bg color.NRGBA
|
||||
}
|
||||
Neg struct {
|
||||
Fg color.NRGBA
|
||||
Bg color.NRGBA
|
||||
}
|
||||
Width unit.Dp
|
||||
Height unit.Dp
|
||||
Outline unit.Dp
|
||||
Handle unit.Dp
|
||||
Icon unit.Dp
|
||||
}
|
||||
|
||||
SwitchWidget struct {
|
||||
Theme *Theme
|
||||
Value tracker.Parameter
|
||||
State *ParamState
|
||||
Style *SwitchStyle
|
||||
Hint string
|
||||
Scroll bool
|
||||
Disabled bool
|
||||
}
|
||||
)
|
||||
|
||||
// ParamState
|
||||
|
||||
func Param(Parameter tracker.Parameter, th *Theme, paramWidget *ParamState, focus, disabled bool) ParamWidget {
|
||||
return ParamWidget{
|
||||
Theme: th,
|
||||
State: paramWidget,
|
||||
Parameter: Parameter,
|
||||
Focus: focus,
|
||||
Disabled: disabled,
|
||||
}
|
||||
}
|
||||
|
||||
func (p ParamWidget) Layout(gtx C) D {
|
||||
title := Label(p.Theme, &p.Theme.UnitEditor.Name, p.Parameter.Name())
|
||||
t := TrackerFromContext(gtx)
|
||||
widget := func(gtx C) D {
|
||||
if port, ok := p.Parameter.Port(); t.IsChoosingSendTarget() && ok {
|
||||
for p.State.clickable.Clicked(gtx) {
|
||||
t.ChooseSendTarget(p.Parameter.UnitID(), port).Do()
|
||||
}
|
||||
k := Port(p.Theme, p.State)
|
||||
return k.Layout(gtx)
|
||||
}
|
||||
switch p.Parameter.Type() {
|
||||
case tracker.IntegerParameter:
|
||||
k := Knob(p.Parameter, p.Theme, p.State, p.Parameter.Hint().Label, p.Focus, p.Disabled)
|
||||
return k.Layout(gtx)
|
||||
case tracker.BoolParameter:
|
||||
s := Switch(p.Parameter, p.Theme, p.State, p.Parameter.Hint().Label, p.Focus, p.Disabled)
|
||||
return s.Layout(gtx)
|
||||
case tracker.IDParameter:
|
||||
for p.State.clickable.Clicked(gtx) {
|
||||
t.ChooseSendSource(p.Parameter.UnitID()).Do()
|
||||
}
|
||||
btn := Btn(t.Theme, &t.Theme.Button.Text, &p.State.clickable, "Set", p.Parameter.Hint().Label)
|
||||
if p.Disabled {
|
||||
btn.Style = &t.Theme.Button.Disabled
|
||||
}
|
||||
return btn.Layout(gtx)
|
||||
}
|
||||
if _, ok := p.Parameter.Port(); ok {
|
||||
k := Port(p.Theme, p.State)
|
||||
return k.Layout(gtx)
|
||||
}
|
||||
return D{}
|
||||
}
|
||||
title.Layout(gtx)
|
||||
layout.Center.Layout(gtx, widget)
|
||||
return D{Size: image.Pt(gtx.Constraints.Max.X, gtx.Constraints.Max.Y)}
|
||||
}
|
||||
|
||||
func (s *ParamState) update(gtx C, param tracker.Parameter, scroll bool) {
|
||||
for {
|
||||
p, ok := s.drag.Update(gtx.Metric, gtx.Source, gesture.Both)
|
||||
if !ok {
|
||||
break
|
||||
}
|
||||
switch p.Kind {
|
||||
case pointer.Press:
|
||||
s.dragStartPt = p.Position
|
||||
s.dragStartVal = param.Value()
|
||||
case pointer.Drag:
|
||||
// update the value based on the drag amount
|
||||
m := param.Range()
|
||||
d := p.Position.Sub(s.dragStartPt)
|
||||
amount := float32(d.X-d.Y) / float32(gtx.Dp(128))
|
||||
newValue := int(float32(s.dragStartVal) + amount*float32(m.Max-m.Min))
|
||||
param.SetValue(newValue)
|
||||
s.tipArea.Appear(gtx.Now)
|
||||
}
|
||||
}
|
||||
for {
|
||||
g, ok := s.click.Update(gtx.Source)
|
||||
if !ok {
|
||||
break
|
||||
}
|
||||
if g.Kind == gesture.KindClick && g.NumClicks > 1 {
|
||||
param.Reset()
|
||||
}
|
||||
}
|
||||
for scroll {
|
||||
e, ok := gtx.Event(pointer.Filter{
|
||||
Target: s,
|
||||
Kinds: pointer.Scroll,
|
||||
ScrollY: pointer.ScrollRange{Min: -1e6, Max: 1e6},
|
||||
})
|
||||
if !ok {
|
||||
break
|
||||
}
|
||||
if ev, ok := e.(pointer.Event); ok && ev.Kind == pointer.Scroll {
|
||||
delta := -int(math.Min(math.Max(float64(ev.Scroll.Y), -1), 1))
|
||||
param.Add(delta, ev.Modifiers.Contain(key.ModShortcut))
|
||||
s.tipArea.Appear(gtx.Now)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// KnobWidget
|
||||
|
||||
func Knob(v tracker.Parameter, th *Theme, state *ParamState, hint string, scroll, disabled bool) KnobWidget {
|
||||
ret := KnobWidget{
|
||||
Theme: th,
|
||||
Value: v,
|
||||
State: state,
|
||||
Style: &th.Knob,
|
||||
Hint: hint,
|
||||
Scroll: scroll,
|
||||
}
|
||||
if disabled {
|
||||
ret.Style = &th.DisabledKnob
|
||||
}
|
||||
return ret
|
||||
}
|
||||
|
||||
func (k *KnobWidget) Layout(gtx C) D {
|
||||
k.State.update(gtx, k.Value, k.Scroll)
|
||||
knob := func(gtx C) D {
|
||||
m := k.Value.Range()
|
||||
amount := float32(k.Value.Value()-m.Min) / float32(m.Max-m.Min)
|
||||
sw := gtx.Dp(k.Style.StrokeWidth)
|
||||
d := gtx.Dp(k.Style.Diameter)
|
||||
defer clip.Rect(image.Rectangle{Max: image.Pt(d, d)}).Push(gtx.Ops).Pop()
|
||||
event.Op(gtx.Ops, k.State)
|
||||
k.State.drag.Add(gtx.Ops)
|
||||
k.State.click.Add(gtx.Ops)
|
||||
middle := float32(k.Value.Neutral()-m.Min) / float32(m.Max-m.Min)
|
||||
pos := max(amount, middle)
|
||||
neg := min(amount, middle)
|
||||
if middle > 0 {
|
||||
k.strokeKnobArc(gtx, k.Style.Neg.Bg, sw, d, 0, neg)
|
||||
}
|
||||
if middle < 1 {
|
||||
k.strokeKnobArc(gtx, k.Style.Pos.Bg, sw, d, pos, 1)
|
||||
}
|
||||
if pos > middle {
|
||||
k.strokeKnobArc(gtx, k.Style.Pos.Color, sw, d, middle, pos)
|
||||
}
|
||||
if neg < middle {
|
||||
k.strokeKnobArc(gtx, k.Style.Neg.Color, sw, d, neg, middle)
|
||||
}
|
||||
k.strokeIndicator(gtx, amount)
|
||||
return D{Size: image.Pt(d, d)}
|
||||
}
|
||||
label := Label(k.Theme, &k.Style.Value, strconv.Itoa(k.Value.Value()))
|
||||
w := func(gtx C) D {
|
||||
return layout.Stack{Alignment: layout.Center}.Layout(gtx,
|
||||
layout.Stacked(knob),
|
||||
layout.Stacked(label.Layout))
|
||||
}
|
||||
if k.Hint != "" {
|
||||
c := gtx.Constraints
|
||||
gtx.Constraints.Max = image.Pt(1e6, 1e6)
|
||||
return k.State.tipArea.Layout(gtx, Tooltip(k.Theme, k.Hint), func(gtx C) D {
|
||||
gtx.Constraints = c
|
||||
return w(gtx)
|
||||
})
|
||||
}
|
||||
return w(gtx)
|
||||
}
|
||||
|
||||
func (k *KnobWidget) strokeKnobArc(gtx C, color color.NRGBA, strokeWidth, diameter int, start, end float32) {
|
||||
rad := float32(diameter) / 2
|
||||
end = min(max(end, 0), 1)
|
||||
if end <= 0 {
|
||||
return
|
||||
}
|
||||
startAngle := float64((start*8 + 1) / 10 * 2 * math.Pi)
|
||||
deltaAngle := (end - start) * 8 * math.Pi / 5
|
||||
center := f32.Point{X: rad, Y: rad}
|
||||
r2 := rad - float32(strokeWidth)/2
|
||||
startPt := f32.Point{X: rad - r2*float32(math.Sin(startAngle)), Y: rad + r2*float32(math.Cos(startAngle))}
|
||||
segments := [...]stroke.Segment{
|
||||
stroke.MoveTo(startPt),
|
||||
stroke.ArcTo(center, deltaAngle),
|
||||
}
|
||||
s := stroke.Stroke{
|
||||
Path: stroke.Path{Segments: segments[:]},
|
||||
Width: float32(strokeWidth),
|
||||
Cap: stroke.FlatCap,
|
||||
}
|
||||
paint.FillShape(gtx.Ops, color, s.Op(gtx.Ops))
|
||||
}
|
||||
|
||||
func (k *KnobWidget) strokeIndicator(gtx C, amount float32) {
|
||||
innerRad := float32(gtx.Dp(k.Style.Indicator.InnerDiam)) / 2
|
||||
outerRad := float32(gtx.Dp(k.Style.Indicator.OuterDiam)) / 2
|
||||
center := float32(gtx.Dp(k.Style.Diameter)) / 2
|
||||
angle := (float64(amount)*8 + 1) / 10 * 2 * math.Pi
|
||||
start := f32.Point{
|
||||
X: center - innerRad*float32(math.Sin(angle)),
|
||||
Y: center + innerRad*float32(math.Cos(angle)),
|
||||
}
|
||||
end := f32.Point{
|
||||
X: center - outerRad*float32(math.Sin(angle)),
|
||||
Y: center + outerRad*float32(math.Cos(angle)),
|
||||
}
|
||||
segments := [...]stroke.Segment{
|
||||
stroke.MoveTo(start),
|
||||
stroke.LineTo(end),
|
||||
}
|
||||
s := stroke.Stroke{
|
||||
Path: stroke.Path{Segments: segments[:]},
|
||||
Width: float32(k.Style.Indicator.Width),
|
||||
Cap: stroke.FlatCap,
|
||||
}
|
||||
paint.FillShape(gtx.Ops, k.Style.Indicator.Color, s.Op(gtx.Ops))
|
||||
}
|
||||
|
||||
// SwitchWidget
|
||||
|
||||
func Switch(v tracker.Parameter, th *Theme, state *ParamState, hint string, scroll, disabled bool) SwitchWidget {
|
||||
return SwitchWidget{
|
||||
Theme: th,
|
||||
Value: v,
|
||||
State: state,
|
||||
Style: &th.Switch,
|
||||
Hint: hint,
|
||||
Scroll: scroll,
|
||||
Disabled: disabled,
|
||||
}
|
||||
}
|
||||
|
||||
func (s *SwitchWidget) Layout(gtx C) D {
|
||||
s.State.update(gtx, s.Value, s.Scroll)
|
||||
width := gtx.Dp(s.Style.Width)
|
||||
height := gtx.Dp(s.Style.Height)
|
||||
var fg, bg color.NRGBA
|
||||
o := 0
|
||||
switch {
|
||||
case s.Disabled || s.Value.Value() == 0:
|
||||
fg = s.Style.Neutral.Fg
|
||||
bg = s.Style.Neutral.Bg
|
||||
o = gtx.Dp(s.Style.Outline)
|
||||
case s.Value.Value() < 0:
|
||||
fg = s.Style.Neg.Fg
|
||||
bg = s.Style.Neg.Bg
|
||||
case s.Value.Value() > 0:
|
||||
fg = s.Style.Pos.Fg
|
||||
bg = s.Style.Pos.Bg
|
||||
}
|
||||
r := min(width, height) / 2
|
||||
fillRoundRect := func(ops *op.Ops, rect image.Rectangle, r int, c color.NRGBA) {
|
||||
defer clip.UniformRRect(rect, r).Push(ops).Pop()
|
||||
paint.ColorOp{Color: c}.Add(ops)
|
||||
paint.PaintOp{}.Add(ops)
|
||||
}
|
||||
if o > 0 {
|
||||
fillRoundRect(gtx.Ops, image.Rect(0, 0, width, height), r, fg)
|
||||
}
|
||||
fillRoundRect(gtx.Ops, image.Rect(o, o, width-o, height-o), r-o, bg)
|
||||
a := r
|
||||
b := width - r
|
||||
p := a + (b-a)*(s.Value.Value()-s.Value.Range().Min)/(s.Value.Range().Max-s.Value.Range().Min)
|
||||
circle := func(x, y, r int) clip.Op {
|
||||
b := image.Rectangle{
|
||||
Min: image.Pt(x-r, y-r),
|
||||
Max: image.Pt(x+r, y+r),
|
||||
}
|
||||
return clip.Ellipse(b).Op(gtx.Ops)
|
||||
}
|
||||
paint.FillShape(gtx.Ops, fg, circle(p, height/2, gtx.Dp(s.Style.Handle)/2))
|
||||
defer clip.Rect(image.Rectangle{Max: image.Pt(width, height)}).Push(gtx.Ops).Pop()
|
||||
event.Op(gtx.Ops, s.State)
|
||||
s.State.drag.Add(gtx.Ops)
|
||||
s.State.click.Add(gtx.Ops)
|
||||
icon := icons.NavigationClose
|
||||
if s.Value.Range().Min < 0 {
|
||||
if s.Value.Value() < 0 {
|
||||
icon = icons.ImageExposureNeg1
|
||||
} else if s.Value.Value() > 0 {
|
||||
icon = icons.ImageExposurePlus1
|
||||
}
|
||||
} else if s.Value.Value() > 0 {
|
||||
icon = icons.NavigationCheck
|
||||
}
|
||||
w := s.Theme.Icon(icon)
|
||||
i := gtx.Dp(s.Style.Icon)
|
||||
defer op.Offset(image.Pt(p-i/2, (height-i)/2)).Push(gtx.Ops).Pop()
|
||||
gtx.Constraints = layout.Exact(image.Pt(i, i))
|
||||
w.Layout(gtx, bg)
|
||||
return D{Size: image.Pt(width, height)}
|
||||
}
|
||||
|
||||
//
|
||||
|
||||
func Port(t *Theme, p *ParamState) PortWidget {
|
||||
return PortWidget{Theme: t, Style: &t.Port, State: p}
|
||||
}
|
||||
|
||||
func (p *PortWidget) Layout(gtx C) D {
|
||||
return p.State.clickable.layout(p.State, gtx, func(gtx C) D {
|
||||
d := gtx.Dp(p.Style.Diameter)
|
||||
defer clip.Rect(image.Rectangle{Max: image.Pt(d, d)}).Push(gtx.Ops).Pop()
|
||||
p.strokeCircle(gtx)
|
||||
return D{Size: image.Pt(d, d)}
|
||||
})
|
||||
}
|
||||
|
||||
func (p *PortWidget) strokeCircle(gtx C) {
|
||||
sw := float32(gtx.Dp(p.Style.StrokeWidth))
|
||||
d := float32(gtx.Dp(p.Style.Diameter))
|
||||
rad := d / 2
|
||||
center := f32.Point{X: rad, Y: rad}
|
||||
var path clip.Path
|
||||
path.Begin(gtx.Ops)
|
||||
path.MoveTo(f32.Pt(sw/2, rad))
|
||||
path.ArcTo(center, center, float32(math.Pi*2))
|
||||
paint.FillShape(gtx.Ops, p.Style.Color,
|
||||
clip.Stroke{
|
||||
Path: path.End(),
|
||||
Width: sw,
|
||||
}.Op())
|
||||
}
|
Reference in New Issue
Block a user