Example usage for android.graphics PointF set

Introduction

In this page you can find the example usage for android.graphics PointF set.

Prototype

public final void set(float x, float y) 

Source Link

Document

Set the point's x and y coordinates

Usage

From source file:com.taobao.weex.ui.component.list.BasicListComponent.java

@Override
public void computeVisiblePointInViewCoordinate(PointF pointF) {
    RecyclerView view = getHostView().getInnerView();
    pointF.set(view.computeHorizontalScrollOffset(), view.computeVerticalScrollOffset());
}

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From source file:com.mylikes.likes.etchasketch.Slate.java

PointF getCenter(MotionEvent event, PointF out) {
    int P = event.getPointerCount();
    PointF pt = ((out == null) ? new PointF() : out);
    pt.set(event.getX(0), event.getY(0));
    final int zero[] = { 0, 0 };
    getLocationOnScreen(zero);/*w  w w. ja va 2  s.  c o  m*/
    for (int j = 1; j < P; j++) {
        pt.x += event.getX(j) + zero[0];
        pt.y += event.getY(j) + zero[1];
    }
    pt.x /= P;
    pt.y /= P;
    return pt;
}

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From source file:com.taobao.weex.ui.component.WXComponent.java

/**
 * This method computes user visible left-top point in view's coordinate.
 * The default implementation uses the scrollX and scrollY of the view as the result,
 * and put the value in the parameter pointer.
 * Components with different computation algorithm
 * <strong> should override </strong> this method.
 *
 * @param pointF the user visible left-top point in view's coordinate.
 */// w  ww  .  j av a2  s .  com
public void computeVisiblePointInViewCoordinate(PointF pointF) {
    View view = getRealView();
    pointF.set(view.getScrollX(), view.getScrollY());
}

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From source file:org.medcare.Dicom.DicomActivity.java

/** Calculate the mid point of the first two fingers */
private void midPoint(PointF point, MotionEvent event) {
    float x = event.getX(0) + event.getX(1);
    float y = event.getY(0) + event.getY(1);
    point.set(x / 2, y / 2);
}

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From source file:xyz.zpayh.hdimage.HDImageView.java

/**
 * ???????//from  w ww. ja  va 2s  . c om
 * @param viewX viewx??
 * @param viewY viewy??
 * @param sourceTarget ???
 * @return
 * ??
 */
private PointF viewToSourceCoordinate(float viewX, float viewY, @NonNull PointF sourceTarget) {
    if (mViewTranslate == null)
        return null;

    sourceTarget.set(viewToSourceX(viewX), viewToSourceY(viewY));
    return sourceTarget;
}

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From source file:xyz.zpayh.hdimage.HDImageView.java

/**
 * ???????/*from   w w  w.  j  a v  a 2s .  c om*/
 * @param sourceX ?x??
 * @param sourceY ?y??
 * @param viewTarget view??
 * @return
 *  ??
 */
private PointF sourceToViewCoordinate(float sourceX, float sourceY, @NonNull PointF viewTarget) {
    if (mViewTranslate == null) {
        return null;
    }
    viewTarget.set(sourceToViewX(sourceX), sourceToViewY(sourceY));
    return viewTarget;
}

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From source file:xyz.zpayh.hdimage.HDImageView.java

private PointF limitedSourceCenter(float sourceCenterX, float sourceCenterY, float scale,
        @NonNull PointF sourceTarget) {
    PointF vTranslate = getTranslateForSourceCenter(sourceCenterX, sourceCenterY, scale);
    int vxCenter = (getPaddingLeft() + getWidth() - getPaddingRight()) / 2;
    int vyCenter = (getPaddingTop() + getHeight() - getPaddingBottom()) / 2;
    float sx = (vxCenter - vTranslate.x) / scale;
    float sy = (vyCenter - vTranslate.y) / scale;
    sourceTarget.set(sx, sy);
    return sourceTarget;
}

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From source file:me.ccrama.redditslide.Views.SubsamplingScaleImageView.java

/**
 * Convert screen coordinate to source coordinate.
 *///from  w w  w .  j  av  a 2s.  c o  m
public final PointF viewToSourceCoord(float vx, float vy, PointF sTarget) {
    if (vTranslate == null) {
        return null;
    }
    sTarget.set(viewToSourceX(vx), viewToSourceY(vy));
    return sTarget;
}

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From source file:me.ccrama.redditslide.Views.SubsamplingScaleImageView.java

/**
 * Convert source coordinate to screen coordinate.
 *//*from   w w  w. ja  v  a 2s.  co m*/
public final PointF sourceToViewCoord(float sx, float sy, PointF vTarget) {
    if (vTranslate == null) {
        return null;
    }
    vTarget.set(sourceToViewX(sx), sourceToViewY(sy));
    return vTarget;
}

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From source file:me.ccrama.redditslide.Views.SubsamplingScaleImageView.java

/**
 * Given a requested source center and scale, calculate what the actual center will have to be to keep the image in
 * pan limits, keeping the requested center as near to the middle of the screen as allowed.
 */// w ww  .  j  a  v a2 s. c o m
private PointF limitedSCenter(float sCenterX, float sCenterY, float scale, PointF sTarget) {
    PointF vTranslate = vTranslateForSCenter(sCenterX, sCenterY, scale);
    int vxCenter = getPaddingLeft() + (getWidth() - getPaddingRight() - getPaddingLeft()) / 2;
    int vyCenter = getPaddingTop() + (getHeight() - getPaddingBottom() - getPaddingTop()) / 2;
    float sx = (vxCenter - vTranslate.x) / scale;
    float sy = (vyCenter - vTranslate.y) / scale;
    sTarget.set(sx, sy);
    return sTarget;
}

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