Example usage for android.graphics Rect setIntersect

Introduction

In this page you can find the example usage for android.graphics Rect setIntersect.

Prototype

@CheckResult
public boolean setIntersect(Rect a, Rect b) 

Source Link

Document

If rectangles a and b intersect, return true and set this rectangle to that intersection, otherwise return false and do not change this rectangle.

Usage

From source file:org.immopoly.android.widget.ImmoscoutPlacesOverlay.java

/**
 * clusterize flats based on their supposed marker position
 *//*from  w  ww  .  jav a2  s. c  om*/
public void clusterize() {
    if (mFlats == null)
        return;
    final Flats flats = mFlats;
    final ArrayList<ClusterItem> items = tmpItems;
    final Projection projection = mMapView.getProjection();
    final Point screenPos = new Point();
    items.clear();

    // create tmp items with flat, geopoint & screenBounds
    for (int i = 0; i < flats.size(); i++) {
        final Flat flat = flats.get(i);
        if (flat.lat == 0 && flat.lng == 0 || !flat.visible)
            continue;
        Rect itemBounds = new Rect(markerBounds);
        GeoPoint point = new GeoPoint((int) (flat.lat * 1E6), (int) (flat.lng * 1E6));
        projection.toPixels(point, screenPos);
        itemBounds.offset(screenPos.x, screenPos.y);
        items.add(new ClusterItem(flat, point, itemBounds));
    }

    // join ClusterItems if their markers would intersect
    ArrayList<ClusterItem> newItems = new ArrayList<ClusterItem>();
    final Rect intersection = new Rect();
    final int size = items.size();
    for (int i = 0; i < size; i++) {
        final ClusterItem item = (ClusterItem) items.get(i);
        if (item.consumed)
            continue;
        for (int j = i + 1; j < size; j++) {
            final ClusterItem otherItem = (ClusterItem) items.get(j);
            if (!otherItem.consumed && intersection.setIntersect(item.screenBounds, otherItem.screenBounds)
                    && intersection.width() * intersection.height() >= MIN_INTERSECTION_AREA)
                item.add(otherItem);
        }
        newItems.add(item);
    }
    tmpItems.clear();
    tmpItems.addAll(newItems);

    // see http://groups.google.com/group/android-developers/browse_thread/thread/38b11314e34714c3
    setLastFocusedIndex(-1);
    populate();
}

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