/**
* Removes a zoom listener.
*
* @param listener zoom listener
*/
public synchronized void removeZoomListener(ZoomListener listener) {
if (mZoomIn != null) {
mZoomIn.removeZoomListener(listener);
mZoomOut.removeZoomListener(listener);
}
mTouchHandler.removeZoomListener(listener);
}
/**
* Adds a new zoom listener.
*
* @param listener zoom listener
* @param onButtons the on buttons
* @param onPinch the on pinch
*/
public void addZoomListener(ZoomListener listener, boolean onButtons, boolean onPinch) {
if (onButtons) {
if (mZoomIn != null) {
mZoomIn.addZoomListener(listener);
mZoomOut.addZoomListener(listener);
}
if (onPinch) {
mTouchHandler.addZoomListener(listener);
}
}
}
/** Do a chart zoom reset / fit zoom. */
public void zoomReset() {
if (mFitZoom != null) {
mFitZoom.apply();
mZoomIn.notifyZoomResetListeners();
repaint();
}
}
/** Do a chart zoom out. */
public void zoomOut() {
if (mZoomOut != null) {
mZoomOut.apply(Zoom.ZOOM_AXIS_XY);
repaint();
}
}
/** Do a chart zoom in. */
public void zoomIn() {
if (mZoomIn != null) {
mZoomIn.apply(Zoom.ZOOM_AXIS_XY);
repaint();
}
}
/**
* Sets the zoom rate.
*
* @param rate the zoom rate
*/
public void setZoomRate(float rate) {
if (mZoomIn != null && mZoomOut != null) {
mZoomIn.setZoomRate(rate);
mZoomOut.setZoomRate(rate);
}
}
