gcc/libgo/go/exp/draw/event.go
Ian Lance Taylor 7a9389330e Add Go frontend, libgo library, and Go testsuite.
gcc/:
	* gcc.c (default_compilers): Add entry for ".go".
	* common.opt: Add -static-libgo as a driver option.
	* doc/install.texi (Configuration): Mention libgo as an option for
	--enable-shared.  Mention go as an option for --enable-languages.
	* doc/invoke.texi (Overall Options): Mention .go as a file name
	suffix.  Mention go as a -x option.
	* doc/frontends.texi (G++ and GCC): Mention Go as a supported
	language.
	* doc/sourcebuild.texi (Top Level): Mention libgo.
	* doc/standards.texi (Standards): Add section on Go language.
	Move references for other languages into their own section.
	* doc/contrib.texi (Contributors): Mention that I contributed the
	Go frontend.
gcc/testsuite/:
	* lib/go.exp: New file.
	* lib/go-dg.exp: New file.
	* lib/go-torture.exp: New file.
	* lib/target-supports.exp (check_compile): Match // Go.

From-SVN: r167407
2010-12-03 04:34:57 +00:00

57 lines
1.7 KiB
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 draw
import (
"image"
"os"
)
// A Window represents a single graphics window.
type Window interface {
// Screen returns an editable Image for the window.
Screen() 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() os.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 os.Error
}