Files
gio-patched/example/hello/hello.go
T
Elias Naur 7672c08f46 example: update gio version
Signed-off-by: Elias Naur <mail@eliasnaur.com>
2019-10-13 18:29:39 +02:00

49 lines
821 B
Go

// SPDX-License-Identifier: Unlicense OR MIT
package main
// A simple Gio program. See https://gioui.org for more information.
import (
"image/color"
"log"
"gioui.org/app"
_ "gioui.org/font/gofont"
"gioui.org/layout"
"gioui.org/text"
"gioui.org/widget/material"
)
func main() {
go func() {
w := app.NewWindow()
if err := loop(w); err != nil {
log.Fatal(err)
}
}()
app.Main()
}
func loop(w *app.Window) error {
th := material.NewTheme()
gtx := &layout.Context{
Queue: w.Queue(),
}
for {
e := <-w.Events()
switch e := e.(type) {
case app.DestroyEvent:
return e.Err
case app.FrameEvent:
gtx.Reset(&e.Config, e.Size)
l := th.H1("Hello, Gio")
maroon := color.RGBA{127, 0, 0, 255}
l.Color = maroon
l.Alignment = text.Middle
l.Layout(gtx)
e.Frame(gtx.Ops)
}
}
}