Example usage for android.view ScaleGestureDetector getFocusX

Introduction

In this page you can find the example usage for android.view ScaleGestureDetector getFocusX.

Prototype

public float getFocusX() 

Source Link

Document

Get the X coordinate of the current gesture's focal point.

Usage

From source file:com.hippo.largeimageview.GestureRecognizer.java

@Override
public boolean onScale(ScaleGestureDetector detector) {
    mScale = true;//from w w  w  .  j  ava  2 s .c om
    mListener.onScale(detector.getFocusX(), detector.getFocusY(), detector.getScaleFactor());
    return true;
}

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From source file:org.ros.android.view.visualization.layer.CameraControlLayer.java

@Override
public void onStart(final VisualizationView view, ConnectedNode connectedNode) {
    view.post(new Runnable() {
        @Override/*from w  w  w  . j  a  va  2 s . c o m*/
        public void run() {
            translateGestureDetector = new GestureDetectorCompat(view.getContext(),
                    new GestureDetector.SimpleOnGestureListener() {
                        @Override
                        public boolean onDown(MotionEvent e) {
                            // This must return true in order for onScroll() to trigger.
                            return true;
                        }

                        @Override
                        public boolean onScroll(MotionEvent event1, MotionEvent event2, final float distanceX,
                                final float distanceY) {
                            view.getCamera().translate(-distanceX, distanceY);
                            listeners.signal(new SignalRunnable<CameraControlListener>() {
                                @Override
                                public void run(CameraControlListener listener) {
                                    listener.onTranslate(-distanceX, distanceY);
                                }
                            });
                            return true;
                        }

                        @Override
                        public boolean onDoubleTap(final MotionEvent e) {
                            listeners.signal(new SignalRunnable<CameraControlListener>() {
                                @Override
                                public void run(CameraControlListener listener) {
                                    listener.onDoubleTap(e.getX(), e.getY());
                                }
                            });
                            return true;
                        }
                    });
            rotateGestureDetector = new RotateGestureDetector(
                    new RotateGestureDetector.OnRotateGestureListener() {
                        @Override
                        public boolean onRotate(MotionEvent event1, MotionEvent event2,
                                final double deltaAngle) {
                            final float focusX = (event1.getX(0) + event1.getX(1)) / 2;
                            final float focusY = (event1.getY(0) + event1.getY(1)) / 2;
                            view.getCamera().rotate(focusX, focusY, deltaAngle);
                            listeners.signal(new SignalRunnable<CameraControlListener>() {
                                @Override
                                public void run(CameraControlListener listener) {
                                    listener.onRotate(focusX, focusY, deltaAngle);
                                }
                            });
                            return true;
                        }
                    });
            zoomGestureDetector = new ScaleGestureDetector(view.getContext(),
                    new ScaleGestureDetector.SimpleOnScaleGestureListener() {
                        @Override
                        public boolean onScale(ScaleGestureDetector detector) {
                            if (!detector.isInProgress()) {
                                return false;
                            }
                            final float focusX = detector.getFocusX();
                            final float focusY = detector.getFocusY();
                            final float factor = detector.getScaleFactor();
                            view.getCamera().zoom(focusX, focusY, factor);
                            listeners.signal(new SignalRunnable<CameraControlListener>() {
                                @Override
                                public void run(CameraControlListener listener) {
                                    listener.onZoom(focusX, focusY, factor);
                                }
                            });
                            return true;
                        }
                    });
        }
    });
}

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From source file:cn.goodjobs.common.view.photodraweeview.ScaleDragDetector.java

@Override
public boolean onScale(ScaleGestureDetector detector) {
    float scaleFactor = detector.getScaleFactor();

    if (Float.isNaN(scaleFactor) || Float.isInfinite(scaleFactor)) {
        return false;
    }/*from   w ww  .j  av a2  s.c  o m*/

    mScaleDragGestureListener.onScale(scaleFactor, detector.getFocusX(), detector.getFocusY());
    return true;
}

---

From source file:am.widget.scalerecyclerview.ScaleRecyclerView.java

/**
 * ??//  ww  w .  j av a  2  s.  co  m
 *
 * @param detector 
 */
protected void dispatchScaleEnd(ScaleGestureDetector detector) {
    onScaleEnd(mScale, detector.getFocusX(), detector.getFocusY());
}

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From source file:am.widget.scalerecyclerview.ScaleRecyclerView.java

/**
 * ?/* w  w  w. j  av a 2 s  .c  om*/
 *
 * @param detector 
 * @return ??
 */
protected boolean dispatchScaleBegin(ScaleGestureDetector detector) {
    onScaleBegin(mScale, detector.getFocusX(), detector.getFocusY());
    return true;
}

---

From source file:am.widget.scalerecyclerview.ScaleRecyclerView.java

/**
 * ?/*from w w  w.ja  va2  s .  c  om*/
 *
 * @param detector 
 * @return ??
 */
protected boolean dispatchScale(ScaleGestureDetector detector) {
    onScale(mScale * detector.getScaleFactor(), detector.getFocusX(), detector.getFocusY());
    return true;
}

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From source file:org.mozilla.gecko.ui.PanZoomController.java

@Override
public void onScaleEnd(ScaleGestureDetector detector) {
    mState = PanZoomState.PANNING_HOLD;//from  ww  w . j a  v  a2 s  .c  om
    mLastTimestamp = System.currentTimeMillis();
    mX.touchPos = detector.getFocusX();
    mY.touchPos = detector.getFocusY();
}

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From source file:org.mozilla.gecko.ui.PanZoomController.java

@Override
public boolean onScale(ScaleGestureDetector detector) {
    mState = PanZoomState.PINCHING;/*from ww  w  .java2  s.  com*/
    float newZoom = detector.getCurrentSpan() / mInitialZoomSpan;

    IntSize screenSize = mController.getScreenSize();
    float x = mInitialZoomFocus.x - (detector.getFocusX() / newZoom);
    float y = mInitialZoomFocus.y - (detector.getFocusY() / newZoom);
    float width = screenSize.width / newZoom;
    float height = screenSize.height / newZoom;
    mController.setVisibleRect(x, y, width, height);
    mController.notifyLayerClientOfGeometryChange();
    populatePositionAndLength();
    return true;
}

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From source file:com.gmail.walles.johan.batterylogger.BatteryPlotFragment.java

private ScaleGestureDetector getTwoFingerGestureDetector(final XYPlot plot) {
    ScaleGestureDetector.SimpleOnScaleGestureListener gestureListener = new ScaleGestureDetector.SimpleOnScaleGestureListener() {
        @Override//from   ww  w. java2  s  .c om
        public boolean onScale(ScaleGestureDetector detector) {
            float factor = detector.getPreviousSpan() / detector.getCurrentSpan();
            float pixelX = detector.getFocusX();
            RectF gridRect = plot.getGraphWidget().getGridRect();
            // getXVal throws IAE if the X value is outside of the rectangle
            if (gridRect.contains(pixelX, gridRect.top)) {
                double pivot = plot.getGraphWidget().getXVal(pixelX);
                zoom(factor, pivot);
            }

            plot.setDomainBoundaries(minX, maxX, BoundaryMode.FIXED);
            redrawPlot(plot);
            return true;
        }
    };

    return new ScaleGestureDetector(getActivity(), gestureListener);
}

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From source file:org.mozilla.gecko.ui.PanZoomController.java

@Override
public boolean onScaleBegin(ScaleGestureDetector detector) {
    mState = PanZoomState.PINCHING;/* ww w  .j av a 2 s.co m*/
    FloatRect initialZoomRect = mController.getVisibleRect();
    float initialZoom = mController.getZoomFactor();

    mInitialZoomFocus = new FloatPoint(initialZoomRect.x + (detector.getFocusX() / initialZoom),
            initialZoomRect.y + (detector.getFocusY() / initialZoom));
    mInitialZoomSpan = detector.getCurrentSpan() / initialZoom;
    return true;
}

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