package main import ( "git.wow.st/gmp/giowrap" "image" "image/color" "log" "os" "runtime" "runtime/pprof" "sync" "time" "gioui.org/ui" "gioui.org/ui/app" "gioui.org/ui/paint" "gioui.org/ui/f32" "gioui.org/ui/gesture" "gioui.org/ui/layout" "gioui.org/ui/measure" "gioui.org/ui/pointer" "gioui.org/ui/text" "golang.org/x/image/font/sfnt" "golang.org/x/image/font/gofont/goregular" ) var ( FPS int = 100 frames int64 frametime int64 // nanoseconds maxframetime int64 mux sync.Mutex Profile bool = false ) func NewButton(face text.Face, t string, c color.RGBA) giowrap.Clickable { lbl := giowrap.NewLabel(t, giowrap.Face(face), giowrap.Align(text.Middle)) bg := giowrap.NewBackground(giowrap.Color(c), giowrap.Radius(ui.Dp(4))) return giowrap.AsClickable(bg(lbl)) } func main() { go func() { ms := &runtime.MemStats{} var a1 uint64 for { time.Sleep(time.Second * 3) mux.Lock() if frames == 0 { mux.Unlock() continue } runtime.ReadMemStats(ms) a1 = ms.Alloc runtime.GC() runtime.ReadMemStats(ms) log.Printf("Alloc: %d - %d = %d (%d per frame)", a1, ms.Alloc, a1 - ms.Alloc, (a1 - ms.Alloc) / (3 * uint64(FPS))) log.Printf("Frametime: %d max Frametime: %d us\n", frametime / (frames * 1000), maxframetime / 1000) frames = 0 frametime = 0 maxframetime = 0 mux.Unlock() } }() switch os.Args[1] { case "", "main1": log.Print("main1()") go main1() case "main2": log.Print("main2()") go main2() default: log.Fatal(`Usage: hello [main1|main2] `) } app.Main() } func main1() { w := app.NewWindow() regular, err := sfnt.Parse(goregular.TTF) if err != nil { log.Fatal("Cannot parse font.") } ctx := giowrap.NewContext(w) t := time.NewTicker(time.Second/time.Duration(FPS)) e1 := giowrap.NewEditor("text 1",giowrap.Face(ctx.Faces.For(regular, ui.Sp(24)))) e1.Focus() e2 := giowrap.NewEditor("text 2",giowrap.Face(ctx.Faces.For(regular, ui.Sp(24)))) f1 := giowrap.NewFlex(giowrap.Axis(layout.Vertical)) OuterInset := giowrap.NewInset(giowrap.Size(ui.Dp(10))) InnerInset := giowrap.NewInset(giowrap.Size(ui.Dp(10))) f2 := giowrap.NewFlex(giowrap.Axis(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}) profiled := false startTime := time.Now() for { select { case <-t.C: w.Invalidate() case e := <-w.Events(): stime := time.Now() switch e := e.(type) { case app.DestroyEvent: return case app.UpdateEvent: ctx.Reset(e) OuterInset( f1( e1, giowrap.Flexible(5), InnerInset(e2), giowrap.Flexible(10), f2( InnerInset(btn1), giowrap.Flexible(0.5), InnerInset(btn2), ), )).Layout(ctx) ctx.Update() if btn1.Clicked(ctx) { log.Print("Clicked: " + e1.Text() ) } if btn2.Clicked(ctx) { log.Print("Clicked: " + e2.Text() ) } } dur := time.Since(stime).Nanoseconds() mux.Lock() frames = frames + 1 frametime = frametime + dur if dur > maxframetime { maxframetime = dur } mux.Unlock() } if profiled { continue } if time.Since(startTime) < time.Second * 10 { continue } if Profile { profiled = true f, err := os.Create("memprofile.pprof") if err != nil { log.Fatal("could not create memory profile: ", err) } if err := pprof.WriteHeapProfile(f); err != nil { log.Fatal("could not write memory profile: ", err) } log.Print("Memory profile written") f.Close() } } } func main2() { w := app.NewWindow() q := w.Queue() ops := new(ui.Ops) var faces measure.Faces regular, err := sfnt.Parse(goregular.TTF) if err != nil { log.Fatal("Cannot parse font.") } t := time.NewTicker(time.Second/time.Duration(FPS)) e1 := &text.Editor{ Face: faces.For(regular, ui.Sp(24)), SingleLine: true, } e1.Focus() e1.SetText("text 1") e2 := &text.Editor{ Face: faces.For(regular, ui.Sp(24)), SingleLine: true, } e2.Focus() e2.SetText("text 2") f1 := layout.Flex{ Axis: layout.Vertical } OuterInset := layout.UniformInset(ui.Dp(10)) InnerInset := layout.UniformInset(ui.Dp(10)) f2 := layout.Flex{ Axis: layout.Horizontal } btn1 := text.Label{ Face: faces.For(regular, ui.Sp(24)), Text: "push1", } b1ins := layout.UniformInset(ui.Dp(4)) btn2 := text.Label{ Face: faces.For(regular, ui.Sp(24)), Text: "push2", } b2ins := layout.UniformInset(ui.Dp(4)) var bg1, bg2 ui.MacroOp click1 := new(gesture.Click) click2 := new(gesture.Click) profiled := false startTime := time.Now() for { select { case <-t.C: w.Invalidate() case e := <-w.Events(): stime := time.Now() switch e := e.(type) { case app.DestroyEvent: return case app.UpdateEvent: c := &e.Config ops.Reset() faces.Reset(c) cs := layout.RigidConstraints(e.Size) cs = OuterInset.Begin(c, ops, cs) f1.Init(ops, cs) cs = f1.Rigid() dims := e1.Layout(c, q, ops, cs) f1c1 := f1.End(dims) cs = f1.Flexible(5) cs = InnerInset.Begin(c, ops, cs) dims = e2.Layout(c, q, ops, cs) dims = InnerInset.End(dims) f1c2 := f1.End(dims) cs = f1.Flexible(10) f2.Init(ops, cs) cs = f2.Rigid() cs = InnerInset.Begin(c, ops, cs) bg1.Record(ops) cs = b1ins.Begin(c, ops, cs) dims = btn1.Layout(ops, cs) dims = b1ins.End(dims) pointer.RectAreaOp{image.Rect(0,0,dims.Size.X,dims.Size.Y)}.Add(ops) click1.Add(ops) bg1.Stop() wi, h := float32(dims.Size.X), float32(dims.Size.Y) r := float32(c.Px(ui.Dp(4))) giowrap.Rrect(ops, wi, h, r, r, r, r) paint.ColorOp{Color: color.RGBA{A: 0xff, R: 0x3c, G: 0x98, B: 0xc6}}.Add(ops) paint.PaintOp{Rect: f32.Rectangle{Max: f32.Point{X: wi, Y: h}}}.Add(ops) bg1.Add(ops) dims = InnerInset.End(dims) f2c1 := f2.End(dims) cs = f2.Flexible(0.5) cs = InnerInset.Begin(c, ops, cs) bg2.Record(ops) cs = b2ins.Begin(c, ops, cs) dims = btn2.Layout(ops, cs) dims = b2ins.End(dims) pointer.RectAreaOp{image.Rect(0,0,dims.Size.X,dims.Size.Y)}.Add(ops) click2.Add(ops) bg2.Stop() wi, h = float32(dims.Size.X), float32(dims.Size.Y) giowrap.Rrect(ops, wi, h, r, r, r, r) paint.ColorOp{Color: color.RGBA{A: 0xff, R: 0x3c, G: 0x98, B: 0xc6}}.Add(ops) paint.PaintOp{Rect: f32.Rectangle{Max: f32.Point{X: wi, Y: h}}}.Add(ops) bg2.Add(ops) dims = InnerInset.End(dims) f2c2 := f2.End(dims) dims = f2.Layout(f2c1, f2c2) f1c3 := f1.End(dims) dims = f1.Layout(f1c1, f1c2, f1c3) dims = OuterInset.End(dims) w.Update(ops) for ev, ok := click1.Next(q); ok; ev, ok = click1.Next(q) { if ev.Type == gesture.TypeClick { log.Print("Clicked: " + e1.Text() ) } } for ev, ok := click2.Next(q); ok; ev, ok = click2.Next(q) { if ev.Type == gesture.TypeClick { log.Print("Clicked: " + e2.Text() ) } } } dur := time.Since(stime).Nanoseconds() mux.Lock() frames = frames + 1 frametime = frametime + dur if dur > maxframetime { maxframetime = dur } mux.Unlock() } if profiled { continue } if time.Since(startTime) < time.Second * 10 { continue } if Profile { profiled = true f, err := os.Create("memprofile.pprof") if err != nil { log.Fatal("could not create memory profile: ", err) } if err := pprof.WriteHeapProfile(f); err != nil { log.Fatal("could not write memory profile: ", err) } log.Print("Memory profile written") f.Close() } } }