twitchapon-anim

Basic Twitchapon Receiver/Visuals
git clone git://bsandro.tech/twitchapon-anim
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touch.go (1951B)


      1 // Copyright 2015 The Go Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style
      3 // license that can be found in the LICENSE file.
      4 
      5 // Package touch defines an event for touch input.
      6 //
      7 // See the golang.org/x/mobile/app package for details on the event model.
      8 package touch // import "golang.org/x/mobile/event/touch"
      9 
     10 // The best source on android input events is the NDK: include/android/input.h
     11 //
     12 // iOS event handling guide:
     13 // https://developer.apple.com/library/ios/documentation/EventHandling/Conceptual/EventHandlingiPhoneOS
     14 
     15 import (
     16 	"fmt"
     17 )
     18 
     19 // Event is a touch event.
     20 type Event struct {
     21 	// X and Y are the touch location, in pixels.
     22 	X, Y float32
     23 
     24 	// Sequence is the sequence number. The same number is shared by all events
     25 	// in a sequence. A sequence begins with a single TypeBegin, is followed by
     26 	// zero or more TypeMoves, and ends with a single TypeEnd. A Sequence
     27 	// distinguishes concurrent sequences but its value is subsequently reused.
     28 	Sequence Sequence
     29 
     30 	// Type is the touch type.
     31 	Type Type
     32 }
     33 
     34 // Sequence identifies a sequence of touch events.
     35 type Sequence int64
     36 
     37 // Type describes the type of a touch event.
     38 type Type byte
     39 
     40 const (
     41 	// TypeBegin is a user first touching the device.
     42 	//
     43 	// On Android, this is a AMOTION_EVENT_ACTION_DOWN.
     44 	// On iOS, this is a call to touchesBegan.
     45 	TypeBegin Type = iota
     46 
     47 	// TypeMove is a user dragging across the device.
     48 	//
     49 	// A TypeMove is delivered between a TypeBegin and TypeEnd.
     50 	//
     51 	// On Android, this is a AMOTION_EVENT_ACTION_MOVE.
     52 	// On iOS, this is a call to touchesMoved.
     53 	TypeMove
     54 
     55 	// TypeEnd is a user no longer touching the device.
     56 	//
     57 	// On Android, this is a AMOTION_EVENT_ACTION_UP.
     58 	// On iOS, this is a call to touchesEnded.
     59 	TypeEnd
     60 )
     61 
     62 func (t Type) String() string {
     63 	switch t {
     64 	case TypeBegin:
     65 		return "begin"
     66 	case TypeMove:
     67 		return "move"
     68 	case TypeEnd:
     69 		return "end"
     70 	}
     71 	return fmt.Sprintf("touch.Type(%d)", t)
     72 }