Ide

ide.go

package main

import (
	"fmt"
	"image/color"
	"log"
	"os"

	_ "embed"

	"gioui.org/app"
	"gioui.org/font/opentype"
	"gioui.org/io/system"
	"gioui.org/layout"
	"gioui.org/op"
	"gioui.org/text"
	"gioui.org/unit"
	"gioui.org/widget"
	"gioui.org/widget/material"
)

//go:embed kalpurush.ttf
var kalpurush []byte

func main() {
	go func() {
		w := app.NewWindow()
		err := run(w)
		if err != nil {
			log.Fatal(err)
		}
		os.Exit(0)
	}()
	app.Main()
}

func run(w *app.Window) error {
    face , err := opentype.Parse(kalpurush)
    if err != nil{
        fmt.Println("failed to parse kalpurush font")
    }
    
    fonts := []text.FontFace{
        { Font: text.Font{ Typeface: "Kalpurush" } , Face: face },
    }
	th := material.NewTheme(fonts)

	var ops op.Ops
	var sbtn widget.Clickable
	var sed widget.Editor
	for {
		e := <-w.Events()
		switch e := e.(type) {
		case system.DestroyEvent:
			return e.Err
		case system.FrameEvent:

			gtx := layout.NewContext(&ops, e)

			layout.Flex{

				Axis:    layout.Vertical,
				Spacing: layout.SpaceStart,
			}.Layout(gtx,
				layout.Rigid(
					func(gtx layout.Context) layout.Dimensions {
						ed := material.Editor(th, &sed, "Write")
						sed.SingleLine = false
						ed.Font.Typeface = "Noto Serif Bengali"
						return ed.Layout(gtx)
					},
				),
				layout.Rigid(
					layout.Spacer{Height: unit.Dp(25)}.Layout,
				),
				layout.Rigid(
					func(gtx layout.Context) layout.Dimensions {
						btn := material.Button(th, &sbtn, "Start")
						return btn.Layout(gtx)
					},
                ),
                layout.Rigid(
                    func(gtx layout.Context) layout.Dimensions {
                        lbl := material.Label(th , unit.Sp(12) , "hello" )
                        return lbl.Layout(gtx)
                    },
				),
				layout.Rigid(
					layout.Spacer{Height: unit.Dp(25)}.Layout,
				),
			)

			title := material.H1(th, "Hello, Gio")
			maroon := color.NRGBA{R: 127, G: 0, B: 0, A: 255}
			title.Color = maroon
			title.Alignment = text.Middle
			title.Layout(gtx)

			e.Frame(gtx.Ops)
		}
	}
}