https://github.com/optozorax/gesture-recognizer

Recognize gestures by touch events
https://github.com/optozorax/gesture-recognizer

Last synced: 3 months ago
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Recognize gestures by touch events

• Host: GitHub
• URL: https://github.com/optozorax/gesture-recognizer
• Owner: optozorax
• Created: 2020-03-08T16:46:22.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2024-02-04T13:08:15.000Z (9 months ago)
• Last Synced: 2024-04-23T21:10:07.462Z (7 months ago)
• Language: Rust
• Size: 2.93 KB
• Stars: 5
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

• awesome-quads - gesture-recognizer - library for recognizing simple touch gestures. (Libraries / Libraries: Other)

README

        
# Gesture Recognizer

This crate provides abstract API to recognize and handle simple gestures. At now three type of gestures are supported:

* Move by **one finger**

* Scale and move by **two fingers**

* Move by **three fingers**

To handle this gestures you need to 

* implement `GestureEvents` trait

* has `GestureRecognizer` struct

* run `process` method of `GestureRecognizer` on each touch event, this `process` method will run methods of `GestureEvents` trait on object that you proceed to it

# miniquad

This crate originally created for [miniquad](https://github.com/not-fl3/miniquad). So, the crate has miniquad as optional dependency. If you choose this optional dependency, you will get code to transform `miniquad::TouchPhase` to `gesture_recognizer::TouchType` by `From` trait.

# TODO

## Gestures

* [ ] long-tap (user need to provide own time method (because of wasm, android etc.))

	* [ ] long-tap by N fingers

	* [ ] **recursive gestures** by long-tap (e.g. long-tap by one finger + then scale by two fingers or also long-tap by one finger + ...)

* [ ] discrete gestures

	* [ ] double-tap (user time method again)

		* [ ] N-tap by M-fingers

	* [ ] swipe ???

* [ ] screen edge flag ???

## Other

* [ ] add rotation to current two fingers gesture!

* [ ] add example on miniquad when all events are visualized and logged to screen and deploy it to wasm!

* [ ] stole ideas from https://developer.apple.com/documentation/uikit/uigesturerecognizer

* [ ] speed of gestures ???

* [ ] how to provide both powerful and easy interface ???

* [ ] think about point type, 

## Discarded

* recognize user images, eg smile, letters. Discarded because this need some machine learning and expensive computations