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package main
import (
"image"
"image/color"
"github.com/faiface/mainthread"
"volute/gui"
"volute/gui/layout"
"volute/gui/widget"
"volute/gui/win"
)
const (
WIDTH = 800
HEIGHT = 600
POINTS = 6
)
func run() {
w, err := win.New(win.Title("volute"), win.Size(WIDTH, HEIGHT))
if err != nil {
panic(err)
}
mux, env := gui.NewMux(w)
var (
displacementChan = make(chan uint)
rpmChan = make([]chan uint, POINTS)
veChan = make([]chan uint, POINTS)
focus = NewFocus(1 + 2*POINTS)
)
for i := 0; i < POINTS; i++ {
rpmChan[i] = make(chan uint)
veChan[i] = make(chan uint)
}
bounds := layout.Grid{
Rows: []int{2, 7, 7},
Background: color.Gray{255},
Gap: 1,
Split: split,
SplitRows: splitRows,
Margin: 0,
Border: 0,
BorderColor: color.Gray{16},
Flip: false,
}.Lay(image.Rect(0, 0, WIDTH, HEIGHT))
go widget.Label("displacement (cc)", bounds[0], mux.MakeEnv())
go widget.Input(
displacementChan,
bounds[1],
focus.widgets[0],
mux.MakeEnv(),
)
go widget.Label("speed (rpm)", bounds[2], mux.MakeEnv())
go widget.Label("VE (%)", bounds[3+POINTS], mux.MakeEnv())
for i := 0; i < POINTS; i++ {
go widget.Input(
rpmChan[i],
bounds[3+i],
focus.widgets[1+i],
mux.MakeEnv(),
)
go widget.Input(
veChan[i],
bounds[3+POINTS+1+i],
focus.widgets[1+POINTS+i],
mux.MakeEnv(),
)
}
focus.widgets[focus.i] <- true
Loop:
for {
select {
case _ = <-displacementChan:
case _ = <-rpmChan[0]:
case event, ok := <-env.Events():
if !ok { // channel closed
break Loop
}
switch event := event.(type) {
case win.WiClose:
break Loop
case win.KbType:
switch event.Rune {
case 'q':
break Loop
case 'j', 'l':
focus.Next()
case 'k', 'h':
focus.Prev()
}
}
}
}
close(env.Draw())
close(displacementChan)
for i := range rpmChan {
close(rpmChan[i])
}
}
func split(elements int, space int) []int {
bounds := make([]int, elements)
widths := []int{
widget.TextSize("displacement (cc)").X,
widget.TextSize("123456").X,
}
for i := 0; i < elements && space > 0; i++ {
bounds[i] = min(widths[min(i, len(widths)-1)], space)
space -= bounds[i]
}
return bounds
}
func splitRows(elements int, space int) []int {
bounds := make([]int, elements)
height := widget.TextSize("1").Y
for i := 0; i < elements && space > 0; i++ {
bounds[i] = min(height, space)
space -= bounds[i]
}
return bounds
}
func main() {
mainthread.Run(run)
}
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