giowrap/cmd/hello/main.go

package main

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

	"image/color"
	"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 NewButton(face text.Face, t string, c color.RGBA) giowrap.Clickable {
	lbl := giowrap.NewLabel(t, giowrap.LabelFace(face), giowrap.LabelAlignment(text.Center))
	bg := giowrap.NewBackground(giowrap.BgColor(c), giowrap.BgRadius(ui.Dp(4)))
	return giowrap.AsClickable(bg(lbl))
}

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("text 1",giowrap.EditorFace(ctx.Faces.For(regular, ui.Sp(24))))
		e1.Focus()

		e2 := giowrap.NewEditor("text 2",giowrap.EditorFace(ctx.Faces.For(regular, ui.Sp(24))))

		f1 := giowrap.NewFlex(giowrap.FlexAxis(layout.Vertical))
		OuterInset := giowrap.NewInset(giowrap.InsetSize(ui.Dp(10)))
		InnerInset := giowrap.NewInset(giowrap.InsetSize(ui.Dp(10)))

		f2 := giowrap.NewFlex(giowrap.FlexAxis(layout.Horizontal))

		btn1 := NewButton(ctx.Faces.For(regular, ui.Sp(24)),
			"push1", color.RGBA{A: 0xff, R: 0x3c, G: 0x98, B: 0xc6})
		btn2 := NewButton(ctx.Faces.For(regular, ui.Sp(24)),
			"push2", color.RGBA{A: 0xff, R: 0x3c, G: 0x98, B: 0xc6})

		for {
			select {
			case <-t.C:
				w.Invalidate()
			case e := <-w.Events():
				switch e := e.(type) {
				case app.DestroyEvent:
					return
				case app.DrawEvent:
					ctx = ctx.Reset(e)
					ctx = OuterInset(
						    f1(
							e1,
							giowrap.Flexible(5),
							InnerInset(e2),
							giowrap.Flexible(10),
							f2(
								InnerInset(btn1),
								giowrap.Flexible(1),
								InnerInset(btn2),
							),
						)).Layout(ctx)
					ctx.Draw()
					if btn1.Clicked(ctx) {
						log.Print("Clicked: " + e1.Text() )
					}
					if btn2.Clicked(ctx) {
						log.Print("Clicked: " + e2.Text() )
					}
				}
			}
		}
	}()
	app.Main()
}