source: other-projects/tipple-android/src/org/mapsforge/android/maps/OverlayMarkerItem.java@ 26523

package org.mapsforge.android.maps;

import android.graphics.Point;
import android.graphics.drawable.Drawable;

/**
 * An OverlayMarkerItem holds all parameters of a single element on an
 * {@link ItemizedMarkerOverlay}.
 */
public class OverlayMarkerItem {
    /**
     * Marker used to indicate the item.
     */
    protected Drawable marker;

    /**
     * Geographical position of the item.
     */
    protected final GeoPoint point;

    /**
     * Title of the item.
     */
    protected final String title;

    /*
     * description of the itme
     */
    protected final String description;
    protected final String content;
    /**
     * 
     * Cached position of the item on the map.
     */
    Point cachedMapPosition;

    /**
     * Zoom level of the cached map position.
     */
    byte cachedZoomLevel;

    /**
     * Constructs a new OverlayItem.
     * 
     * @param point
     *            the geographical position of the item.
     */
    public OverlayMarkerItem(GeoPoint point, String title, Drawable balloon) {
        this.point = point;
        this.title = title;
        this.marker = balloon;
        this.description = null;
        this.cachedZoomLevel = Byte.MIN_VALUE;
        this.content = null;
    }

    public OverlayMarkerItem(GeoPoint point, String title) {
        this.point = point;
        this.title = title;
        this.description = null;
        this.cachedZoomLevel = Byte.MIN_VALUE;
        this.content = null;
    }

    public OverlayMarkerItem(GeoPoint point, String title, String description,
            String content) {
        this.point = point;
        this.title = title;
        this.description = description;
        this.content = content;
    }

    protected static Drawable boundCenter(Drawable balloon) {
        balloon.setBounds(balloon.getIntrinsicWidth() / -2,
                balloon.getIntrinsicHeight() / -2,
                balloon.getIntrinsicWidth() / 2,
                balloon.getIntrinsicHeight() / 2);
        return balloon;
    }

    /**
     * Sets the bounds of the given drawable so that (0,0) is the center of the
     * bounding box.
     * 
     * @param balloon
     *            the drawable whose bounds should be set.
     * @return the given drawable.
     */
    protected static Drawable boundCenterBottom(Drawable balloon) {
        balloon.setBounds(balloon.getIntrinsicWidth() / -2,
                -balloon.getIntrinsicHeight(), balloon.getIntrinsicWidth() / 2,
                0);
        return balloon;
    }

    /**
     * Returns the marker used to indicate the item (may be null).
     * 
     * @return the marker used to indicate the item.
     */
    public Drawable getMarker() {
        return this.marker;
    }

    /**
     * Returns the position of the item.
     * 
     * @return the position of the item.
     */
    public GeoPoint getPoint() {
        return this.point;
    }

    /**
     * Returns the title of the item.
     * 
     * @return the title of the item.
     */
    public String getTitle() {
        return this.title;
    }

    /**
     * Return the description of the item
     */
    public String getDescription() {
        return this.description;
    }

    public String getContent() {
        return this.content;
    }

    /**
     * Sets the marker that is drawn on the map for this item. If the item
     * marker is null, the default marker will be drawn instead.
     * 
     * @param marker
     *            the marker that is drawn on the map for this item.
     */
    public void setMarker(Drawable marker) {
        this.marker = boundCenterBottom(marker);
    }

}