1 files changed, 128 insertions, 0 deletions
diff --git a/examples/layout/main.go b/examples/layout/main.go
new file mode 100644
index 0000000..47364a9
--- /dev/null
+++ b/examples/layout/main.go
@@ -0,0 +1,128 @@
+package main
+
+import (
+	"image"
+	"image/draw"
+	"log"
+	"time"
+
+	"github.com/faiface/gui"
+	"github.com/faiface/gui/fixedgrid"
+	"github.com/faiface/gui/win"
+	"github.com/faiface/mainthread"
+	"golang.org/x/image/colornames"
+	"golang.org/x/image/font/gofont/goregular"
+)
+
+func Blinker(env gui.Env, closed bool) {
+	defer func() {
+		if recover() != nil {
+			log.Print("recovered blinker")
+		}
+	}()
+
+	var r image.Rectangle
+	var visible bool = true
+	// redraw takes a bool and produces a draw command
+	redraw := func() func(draw.Image) image.Rectangle {
+		return func(drw draw.Image) image.Rectangle {
+			if visible {
+				draw.Draw(drw, r, image.White, image.ZP, draw.Src)
+			} else {
+				draw.Draw(drw, r, &image.Uniform{colornames.Firebrick}, image.ZP, draw.Src)
+			}
+			return r
+		}
+	}
+
+	// first we draw a white rectangle
+	env.Draw() <- redraw()
+	go func() {
+		for event := range env.Events() {
+			switch event := event.(type) {
+			case win.MoDown:
+				if event.Point.In(r) {
+					go func() {
+						for i := 0; i < 3; i++ {
+							visible = false
+							env.Draw() <- redraw()
+							time.Sleep(time.Second / 3)
+							visible = true
+							env.Draw() <- redraw()
+							time.Sleep(time.Second / 3)
+						}
+					}()
+				}
+			case gui.Resize:
+				log.Print(event)
+				r = event.Rectangle
+				env.Draw() <- redraw()
+			}
+		}
+	}()
+
+	if closed {
+		time.Sleep(time.Second * 1)
+		close(env.Draw())
+	}
+}
+
+func run() {
+	face, err := TTFToFace(goregular.TTF, 18)
+	if err != nil {
+		panic(err)
+	}
+	theme := &Theme{
+		Face:       face,
+		Background: colornames.White,
+		Empty:      colornames.Darkgrey,
+		Text:       colornames.Black,
+		Highlight:  colornames.Blueviolet,
+		ButtonUp:   colornames.Lightgrey,
+		ButtonDown: colornames.Grey,
+	}
+	w, err := win.New(win.Title("gui test"),
+		win.Resizable(),
+	)
+	if err != nil {
+		panic(err)
+	}
+	mux, env := gui.NewMux(w)
+	gr := fixedgrid.New(mux.MakeEnv(),
+		fixedgrid.Rows(5),
+		fixedgrid.Columns(2),
+		fixedgrid.Gap(10),
+	)
+	log.Print(gr)
+	go Blinker(gr.GetEnv("0;0"), false)
+	go Blinker(gr.GetEnv("0;1"), true)
+	go Blinker(gr.GetEnv("1;1"), false)
+	go Blinker(gr.GetEnv("0;2"), false)
+	go Blinker(gr.GetEnv("0;3"), false)
+	go Blinker(gr.GetEnv("0;4"), false)
+	sgr := fixedgrid.New(gr.GetEnv("1;0"),
+		fixedgrid.Columns(3),
+		fixedgrid.Gap(4),
+		fixedgrid.Background(colornames.Darkgrey),
+	)
+	go Button(sgr.GetEnv("0;0"), theme, "Hey", func() {
+		log.Print("hey")
+	})
+	go Button(sgr.GetEnv("1;0"), theme, "Ho", func() {
+		log.Print("ho")
+	})
+	go Button(sgr.GetEnv("2;0"), theme, "Hu", func() {
+		log.Print("hu")
+	})
+	// we use the master env now, w is used by the mux
+	for event := range env.Events() {
+		switch event.(type) {
+		case win.WiClose:
+			close(env.Draw())
+		}
+	}
+}
+
+func main() {
+	mainthread.Run(run)
+}