exp/gui: delete exp/gui and exp/gui/x11. They are moving to

x-go-binding.googlecode.com.

R=rsc, rogpeppe
CC=golang-dev
https://golang.org/cl/5406041

src/pkg/Makefile

@@ -80,8 +80,6 @@ DIRS=\
 	exp/ebnf\
 	exp/ebnflint\
 	exp/gotype\
-	exp/gui\
-	exp/gui/x11\
 	exp/norm\
 	exp/ssh\
 	exp/spdy\
@@ -204,8 +202,6 @@ NOTEST+=\
 	crypto/openpgp/error\
 	crypto/x509/pkix\
 	exp/ebnflint\
-	exp/gui\
-	exp/gui/x11\
 	go/doc\
 	hash\
 	image/bmp\

src/pkg/exp/gui/Makefile

-# Copyright 2009 The Go Authors.  All rights reserved.
-# Use of this source code is governed by a BSD-style
-# license that can be found in the LICENSE file.
-
-include ../../../Make.inc
-
-TARG=exp/gui
-GOFILES=\
-	gui.go\
-
-include ../../../Make.pkg

src/pkg/exp/gui/gui.go

-// Copyright 2009 The Go 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 gui defines a basic graphical user interface programming model.
-package gui
-
-import (
-	"image"
-	"image/draw"
-)
-
-// A Window represents a single graphics window.
-type Window interface {
-	// Screen returns an editable Image for the window.
-	Screen() draw.Image
-	// FlushImage flushes changes made to Screen() back to screen.
-	FlushImage()
-	// EventChan returns a channel carrying UI events such as key presses,
-	// mouse movements and window resizes.
-	EventChan() <-chan interface{}
-	// Close closes the window.
-	Close() error
-}
-
-// A KeyEvent is sent for a key press or release.
-type KeyEvent struct {
-	// The value k represents key k being pressed.
-	// The value -k represents key k being released.
-	// The specific set of key values is not specified,
-	// but ordinary characters represent themselves.
-	Key int
-}
-
-// A MouseEvent is sent for a button press or release or for a mouse movement.
-type MouseEvent struct {
-	// Buttons is a bit mask of buttons: 1<<0 is left, 1<<1 middle, 1<<2 right.
-	// It represents button state and not necessarily the state delta: bit 0
-	// being on means that the left mouse button is down, but does not imply
-	// that the same button was up in the previous MouseEvent.
-	Buttons int
-	// Loc is the location of the cursor.
-	Loc image.Point
-	// Nsec is the event's timestamp.
-	Nsec int64
-}
-
-// A ConfigEvent is sent each time the window's color model or size changes.
-// The client should respond by calling Window.Screen to obtain a new image.
-type ConfigEvent struct {
-	Config image.Config
-}
-
-// An ErrEvent is sent when an error occurs.
-type ErrEvent struct {
-	Err error
-}

src/pkg/exp/gui/x11/Makefile

-# Copyright 2009 The Go Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style
-# license that can be found in the LICENSE file.
-
-include ../../../../Make.inc
-
-TARG=exp/gui/x11
-GOFILES=\
-	auth.go\
-	conn.go\
-
-include ../../../../Make.pkg

src/pkg/exp/gui/x11/auth.go

-// Copyright 2009 The Go 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 x11
-
-import (
-	"bufio"
-	"errors"
-	"io"
-	"os"
-)
-
-// readU16BE reads a big-endian uint16 from r, using b as a scratch buffer.
-func readU16BE(r io.Reader, b []byte) (uint16, error) {
-	_, err := io.ReadFull(r, b[0:2])
-	if err != nil {
-		return 0, err
-	}
-	return uint16(b[0])<<8 + uint16(b[1]), nil
-}
-
-// readStr reads a length-prefixed string from r, using b as a scratch buffer.
-func readStr(r io.Reader, b []byte) (string, error) {
-	n, err := readU16BE(r, b)
-	if err != nil {
-		return "", err
-	}
-	if int(n) > len(b) {
-		return "", errors.New("Xauthority entry too long for buffer")
-	}
-	_, err = io.ReadFull(r, b[0:n])
-	if err != nil {
-		return "", err
-	}
-	return string(b[0:n]), nil
-}
-
-// readAuth reads the X authority file and returns the name/data pair for the display.
-// displayStr is the "12" out of a $DISPLAY like ":12.0".
-func readAuth(displayStr string) (name, data string, err error) {
-	// b is a scratch buffer to use and should be at least 256 bytes long
-	// (i.e. it should be able to hold a hostname).
-	var b [256]byte
-	// As per /usr/include/X11/Xauth.h.
-	const familyLocal = 256
-
-	fn := os.Getenv("XAUTHORITY")
-	if fn == "" {
-		home := os.Getenv("HOME")
-		if home == "" {
-			err = errors.New("Xauthority not found: $XAUTHORITY, $HOME not set")
-			return
-		}
-		fn = home + "/.Xauthority"
-	}
-	r, err := os.Open(fn)
-	if err != nil {
-		return
-	}
-	defer r.Close()
-	br := bufio.NewReader(r)
-
-	hostname, err := os.Hostname()
-	if err != nil {
-		return
-	}
-	for {
-		var family uint16
-		var addr, disp, name0, data0 string
-		family, err = readU16BE(br, b[0:2])
-		if err != nil {
-			return
-		}
-		addr, err = readStr(br, b[0:])
-		if err != nil {
-			return
-		}
-		disp, err = readStr(br, b[0:])
-		if err != nil {
-			return
-		}
-		name0, err = readStr(br, b[0:])
-		if err != nil {
-			return
-		}
-		data0, err = readStr(br, b[0:])
-		if err != nil {
-			return
-		}
-		if family == familyLocal && addr == hostname && disp == displayStr {
-			return name0, data0, nil
-		}
-	}
-	panic("unreachable")
-}