ofxMacTrackpad

using MBP Trackpad events on openFrameworks.

( alternative of ofxMultiTouchPad )

Requirement

• Basic: OSX 10.7 and later
• Force touch: OSX 10.10.3 and later
• Touchbar: OSX 10.12.1 and later

Tested env

• macOS 10.12.3 + of 0.9.8 + MBP 2016
• macOS 10.12.3 + of 0.9.8 + MBP 2016 + Magic Trackpad
• Mac OSX 10.10.3 + of 0.9.6 + MBP 2013

Known issue

• Swipe event won't be received.

How to use

class ofApp {
	ofxMacTrackpadTouchArg touches;
public:
	void receiveTouches(ofxMacTrackpadTouchArg &arg) {
		touches = arg;
	}
	
	void setup() {
		ofAddListener(ofxMacTrackpad::multitouch, this, &ofApp::receiveTouches);
		
		ofxMacTrackpad::startListen();
	}
	
	void draw() {
		for(auto &finger : touches.fingers) {
			ofDrawCircle(
				ofMap(finger.position.x, 0.0f, 1.0f, 0.0f, ofGetWidth()),
				ofMap(finger.position.y, 0.0f, 1.0f, 0.0f, ofGetHeight()),
				40
			);
		}
	}
};

see example and source code.

API

Events

• ofEvent touch;

• ofEvent release;

• ofEvent multitouch;

• ofEvent touchTouchbar;

• ofEvent releaseTouchbar;

• ofEvent multitouchTouchbar;

• ofEvent pressure;

• ofEvent pinch;

• ofEvent rotate;

• ofEvent swipe;

• ofEvent twoFingerDoubleTap;

enum class ofxMacTrackpadEventPhase

• None
• Began
• Stationary
• Changed
• Ended
• Cancelled
• MayBegan

struct ofxMacTrackpadTouchedFinger

• TouchPhase phase
• std::uint64_t identity
• std::uint64_t deviceID
• ofPoint position
• ofVec2f delta
• bool isResting

struct ofxMacTrackpadTouchArg

• std::vector fingers
• std::vector releasedFingers
• ofxMacTrackpadEventPhase phase
• double timestamp

struct ofxMacTrackpadPressureArg

• float pressure
• PressureBehavior behavior
• std::uint8_t stage
• float stageTransition
• float normalizedPressure()
• ofxMacTrackpadEventPhase phase
• double timestamp

struct ofxMacTrackpadPinchArg

• float magnification
• ofxMacTrackpadEventPhase phase
• double timestamp

struct RotateArg

• float rotation
• ofxMacTrackpadEventPhase phase
• double timestamp

struct SwipeArg

• ofPoint delta
• ofxMacTrackpadEventPhase phase
• double timestamp

TwoFingerDoubleTapArg

• ofxMacTrackpadEventPhase phase
• double timestamp

Update history

2017/04/06 ver 0.01 release

License

MIT License.

Author

• ISHII 2bit [bufferRenaiss co., ltd.]
• ishii[at]buffer-renaiss.com

At the last

Please create new issue, if there is a problem. And please throw pull request, if you have a cool idea!!