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package cirsim_fyne
import (
"fmt"
"io"
"log"
"fyne.io/fyne/v2"
"fyne.io/fyne/v2/canvas"
"fyne.io/fyne/v2/widget"
"git.veresov.xyz/aversey/cirsim/cirsim"
"github.com/wcharczuk/go-chart/v2"
"github.com/wcharczuk/go-chart/v2/drawing"
)
type component struct {
widget.BaseWidget
modeler cirsim.Modeler
pos fyne.Position
modelName string
nodes [2]int
currentRange chart.Range
chart *canvas.Image
labels []*widget.Label
entries []*widget.Entry
}
func (c *component) ModelName() string {
return c.modelName
}
func (c *component) Nodes() [2]int {
return c.nodes
}
func newComponent(settings io.Reader, r chart.Range) *component {
var c component
var a int
var b int
_, err := fmt.Fscanf(settings, "%f %f %s %d %d\n",
&c.pos.X, &c.pos.Y, &c.modelName, &a, &b,
)
if err != nil {
return nil
}
if a <= 0 || b <= 0 {
log.Fatal("unconnected components in the circuit")
}
c.nodes[0] = a - 1
c.nodes[1] = b - 1
c.currentRange = r
return &c
}
func (c *component) setupModeler(modeler cirsim.Modeler, update func()) {
c.modeler = modeler
c.entries = make([]*widget.Entry, 0)
c.labels = make([]*widget.Label, 0)
params := c.modeler.Parameters()
for k, v := range params {
e := widget.NewEntry()
e.TextStyle.Monospace = true
e.SetPlaceHolder(k)
e.SetText(fmt.Sprintf("%f", v))
e.OnSubmitted = func(s string) {
var v float64
_, err := fmt.Sscanf(s+"\n", "%f\n", &v)
if err != nil {
e.SetText(fmt.Sprintf("%f", params[k]))
} else {
c.modeler.UpdateParameter(k, v)
update()
}
}
c.entries = append(c.entries, e)
l := widget.NewLabel(k)
l.TextStyle.Monospace = true
c.labels = append(c.labels, l)
}
}
func (c *component) renderChart(currentOverTime []float64) {
graph := chart.Chart{
Width: chartWidth,
Height: chartHeight,
ColorPalette: &componentColorPalette{},
XAxis: chart.HideXAxis(),
YAxis: chart.YAxis{
Style: chart.Hidden(),
Range: c.currentRange,
},
Series: []chart.Series{
chart.ContinuousSeries{
XValues: chart.LinearRange(0, float64(len(currentOverTime))-1),
YValues: currentOverTime,
},
},
}
writer := &chart.ImageWriter{}
graph.Render(chart.PNG, writer)
img, _ := writer.Image()
c.chart = canvas.NewImageFromImage(img)
}
type componentColorPalette struct{}
func (*componentColorPalette) BackgroundColor() drawing.Color {
return drawing.ColorTransparent
}
func (*componentColorPalette) BackgroundStrokeColor() drawing.Color {
return drawing.ColorTransparent
}
func (*componentColorPalette) CanvasColor() drawing.Color {
return drawing.Color{
R: currentCanvasR,
G: currentCanvasG,
B: currentCanvasB,
A: currentCanvasA,
}
}
func (*componentColorPalette) CanvasStrokeColor() drawing.Color {
return drawing.ColorTransparent
}
func (*componentColorPalette) AxisStrokeColor() drawing.Color {
return drawing.ColorTransparent
}
func (*componentColorPalette) TextColor() drawing.Color {
return drawing.ColorTransparent
}
func (*componentColorPalette) GetSeriesColor(index int) drawing.Color {
return drawing.Color{R: currentR, G: currentG, B: currentB, A: currentA}
}
func (c *component) CreateRenderer() fyne.WidgetRenderer { return c }
func (c *component) Layout(s fyne.Size) {
const chartWidth = float32(chartWidth)
const chartHeight = float32(chartHeight)
pos := fyne.NewPos(0, 0)
for i, e := range c.entries {
c.labels[i].Resize(fyne.NewSize(chartWidth, c.labels[i].MinSize().Height))
c.labels[i].Move(pos)
pos.Y += c.labels[i].MinSize().Height
e.Resize(fyne.NewSize(chartWidth, e.MinSize().Height))
e.Move(pos)
pos.Y += e.MinSize().Height
}
c.chart.Resize(fyne.NewSize(chartWidth, chartHeight))
c.chart.Move(pos)
}
func (c *component) MinSize() fyne.Size {
const chartWidth = float32(chartWidth)
const chartHeight = float32(chartHeight)
res := fyne.NewSize(chartWidth, chartHeight)
for _, e := range c.entries {
res.Height += e.MinSize().Height
}
for _, l := range c.labels {
res.Height += l.MinSize().Height
}
return res
}
func (c *component) Refresh() {
for _, e := range c.entries {
e.Refresh()
}
for _, l := range c.labels {
l.Refresh()
}
}
func (c *component) Destroy() {}
func (c *component) Objects() []fyne.CanvasObject {
res := []fyne.CanvasObject{}
for i, e := range c.entries {
res = append(res, c.labels[i])
res = append(res, e)
}
res = append(res, c.chart)
return res
}
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