package com.github.mikephil.charting.listener;
import android.view.MotionEvent;
/**
* Listener for callbacks when doing gestures on the chart.
*
* @author Philipp Jahoda
*/
public interface OnChartGestureListener {
/**
* Callbacks when the chart is longpressed.
*
* @param me
*/
public void onChartLongPressed(MotionEvent me);
/**
* Callbacks when the chart is double-tapped.
*
* @param me
*/
public void onChartDoubleTapped(MotionEvent me);
/**
* Callbacks when the chart is single-tapped.
*
* @param me
*/
public void onChartSingleTapped(MotionEvent me);
/**
* Callbacks then a fling gesture is made on the chart.
*
* @param me1
* @param me2
* @param velocityX
* @param velocityY
*/
public void onChartFling(MotionEvent me1, MotionEvent me2, float velocityX, float velocityY);
/**
* Callbacks when the chart is scaled / zoomed via pinch zoom gesture.
*
* @param me
* @param scaleX scalefactor on the x-axis
* @param scaleY scalefactor on the y-axis
*/
public void onChartScale(MotionEvent me, float scaleX, float scaleY);
/**
* Callbacks when the chart is moved / translated via drag gesture.
*
* @param me
* @param dX translation distance on the x-axis
* @param dY translation distance on the y-axis
*/
public void onChartTranslate(MotionEvent me, float dX, float dY);
}