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package main
import (
"image"
"image/draw"
"log"
"time"
"github.com/faiface/gui"
"github.com/faiface/gui/layout"
"github.com/faiface/gui/win"
"github.com/faiface/mainthread"
"golang.org/x/image/colornames"
"golang.org/x/image/font/gofont/goregular"
)
func Blinker(env gui.Env) {
defer func() {
if recover() != nil {
log.Print("recovered blinker")
}
}()
var r image.Rectangle
var visible bool = true
redraw := func() func(draw.Image) image.Rectangle {
return func(drw draw.Image) image.Rectangle {
if visible {
draw.Draw(drw, r, image.White, image.ZP, draw.Src)
} else {
draw.Draw(drw, r, &image.Uniform{colornames.Firebrick}, image.ZP, draw.Src)
}
return r
}
}
// first we draw a white rectangle
env.Draw() <- redraw()
func() {
for event := range env.Events() {
switch event := event.(type) {
case win.MoDown:
if event.Point.In(r) {
go func() {
for i := 0; i < 3; i++ {
visible = false
env.Draw() <- redraw()
time.Sleep(time.Second / 3)
visible = true
env.Draw() <- redraw()
time.Sleep(time.Second / 3)
}
}()
}
case gui.Resize:
log.Print(event)
r = event.Rectangle
env.Draw() <- redraw()
}
}
}()
}
func run() {
face, err := TTFToFace(goregular.TTF, 18)
if err != nil {
panic(err)
}
theme := &Theme{
Face: face,
Background: colornames.White,
Empty: colornames.Darkgrey,
Text: colornames.Black,
Highlight: colornames.Blueviolet,
ButtonUp: colornames.Lightgrey,
ButtonDown: colornames.Grey,
}
w, err := win.New(win.Title("gui test")) // win.Resizable(),
if err != nil {
panic(err)
}
mux, env := gui.NewMux(w)
var (
top gui.Env
left, right gui.Env
bottomLeft, bottom, bottomRight gui.Env
)
layout.NewGrid(
mux.MakeEnv(),
[][]*gui.Env{
{&top},
{&left, &right},
{&bottomLeft, &bottom, &bottomRight},
},
layout.GridGap(10),
layout.GridBackground(colornames.Sandybrown),
layout.GridSplitY(func(els int, width int) []int {
ret := make([]int, els)
total := 0
for i := 0; i < els; i++ {
if i == els-1 {
ret[i] = width - total
} else {
v := (width - total) / 2
ret[i] = v
total += v
}
}
return ret
}),
)
go Blinker(right)
go Blinker(left)
go Blinker(bottomRight)
var (
b1, b2, b3, b4, b5, b6 gui.Env
)
layout.NewBox(
top,
[]*gui.Env{
&b1, &b2, &b3,
},
layout.BoxGap(10),
layout.BoxBackground(colornames.Lightblue),
)
go Blinker(b1)
go Blinker(b2)
box := layout.NewBox(
b3,
[]*gui.Env{
&b4, &b5, &b6,
},
layout.BoxVertical,
layout.BoxBackground(colornames.Pink),
layout.BoxGap(4),
layout.BoxSplit(func(els int, width int) []int {
ret := make([]int, els)
total := 0
for i := 0; i < els; i++ {
if i == els-1 {
ret[i] = width - total
} else {
v := (width - total) / 2
ret[i] = v
total += v
}
}
return ret
}),
)
log.Print(box)
// go func() {
// for v := range box.Events() {
// log.Print("box: ", v)
// }
// }()
go Blinker(b4)
go Blinker(b5)
go Blinker(b6)
var (
btn1, btn2, btn3 gui.Env
)
layout.NewGrid(
bottom,
[][]*gui.Env{
{&btn1, &btn2, &btn3},
},
layout.GridGap(4),
layout.GridBackground(colornames.Darkgrey),
)
btn := func(env gui.Env, name string) {
Button(env, theme, name, func() {
log.Print(name)
})
}
go btn(btn1, "Hey")
go btn(btn2, "Ho")
go btn(btn3, "Hu")
// we use the master env now, w is used by the mux
for event := range env.Events() {
switch event.(type) {
case win.WiClose:
close(env.Draw())
}
}
}
func main() {
mainthread.Run(run)
}
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