Add _examples/size.go

_examples/size.go

@@ -0,0 +1,45 @@
+// Copyright 2014 The gocui Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/jroimartin/gocui"
+)
+
+func main() {
+	g, err := gocui.NewGui(gocui.OutputNormal)
+	if err != nil {
+		log.Panicln(err)
+	}
+	defer g.Close()
+
+	g.SetManagerFunc(layout)
+
+	if err := g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, quit); err != nil {
+		log.Panicln(err)
+	}
+
+	if err := g.MainLoop(); err != nil && err != gocui.ErrQuit {
+		log.Panicln(err)
+	}
+}
+
+func layout(g *gocui.Gui) error {
+	maxX, maxY := g.Size()
+	v, err := g.SetView("size", maxX/2-7, maxY/2, maxX/2+7, maxY/2+2)
+	if err != nil && err != gocui.ErrUnknownView {
+		return err
+	}
+	v.Clear()
+	fmt.Fprintf(v, "%d, %d", maxX, maxY)
+	return nil
+}
+
+func quit(g *gocui.Gui, v *gocui.View) error {
+	return gocui.ErrQuit
+}