giowrap/cmd/hello/main.go

package main

import (
	"git.wow.st/gmp/giowrap"

	"log"
	"time"

	"gioui.org/ui"
	"gioui.org/ui/app"
	"gioui.org/ui/layout"
	"gioui.org/ui/text"

	"golang.org/x/image/font/sfnt"
	"golang.org/x/image/font/gofont/goregular"
)

func main() {
	go func() {
		w := app.NewWindow(nil)
		regular, err := sfnt.Parse(goregular.TTF)
		if err != nil {
			log.Fatal("Cannot parse font.")
		}
		ctx := giowrap.NewContext(w)
		t := time.NewTicker(time.Second/30)
		e1 := giowrap.NewEditor(ctx.Faces.For(regular, ui.Sp(24)), true)
		e1.SetText("hi there")
		e1.Focus()

		e2 := giowrap.NewEditor(ctx.Faces.For(regular, ui.Sp(24)), true)
		e2.SetText("ok bye")

		f := giowrap.NewFlex(layout.Vertical, layout.Start, layout.Start)
		OuterInset := giowrap.NewInset(ui.Dp(10),ui.Dp(10),ui.Dp(10),ui.Dp(10))
		InnerInset := giowrap.NewInset(ui.Dp(10),ui.Dp(10),ui.Dp(10),ui.Dp(10))

		lbl := giowrap.NewButton(
			ctx.Faces.For(regular, ui.Sp(24)),
			"centered",
			text.Center,
		)
		bg := giowrap.NewBackground(giowrap.Rgb(0x3c98c6), ui.Dp(4))
		btn := bg(lbl)

		for {
			select {
			case <-t.C:
				w.Invalidate()
			case e := <-w.Events():
				switch e := e.(type) {
				case app.DestroyEvent:
					return
				case app.DrawEvent:
					ctx.Reset(e)
					ctx = giowrap.LayoutWithContext(ctx,
						OuterInset(
						    f(
							e1,
							giowrap.Flexible(5),
							InnerInset(e2),
							giowrap.Flexible(10),
							btn,
						)))
					ctx.Draw()
					if lbl.Clicked(ctx) {
						log.Print("Clicked: " + e2.Text() )
					}
				}
			}
		}
	}()
	app.Main()
}