// **********************************************************************// // <copyright>// //  BBN Technologies//  10 Moulton Street//  Cambridge, MA 02138//  (617) 873-8000// //  Copyright (C) BBNT Solutions LLC. All rights reserved.// // </copyright>// **********************************************************************// $Source: /cvs/distapps/openmap/src/openmap/com/bbn/openmap/layer/vpf/TextTable.java,v $// $Revision: 1.4.2.1 $ $Date: 2004/10/14 18:27:22 $ $Author: dietrick $// **********************************************************************package com.bbn.openmap.layer.vpf;import java.util.*;import com.bbn.openmap.LatLonPoint;import com.bbn.openmap.io.FormatException;/** * Read VPF format text tables to generate text graphics for OpenMap. */public class TextTable extends PrimitiveTable {    /** the column that our coordinates are in */    final private int coordColumn;    /** the column that the text info is in */    final private int textColumn;    /**     * Construct a TextTable for reading VPF text features.     *      * @param cov the CoverageTable for the tile     * @param tile the tile to parse     * @exception FormatException if something goes wrong reading the     *            text     */    public TextTable(CoverageTable cov, TileDirectory tile)            throws FormatException {        super(cov, tile, "txt");        if ((coordColumn = whatColumn("shape_line")) == -1) {            throw new FormatException("texttable couldn't get "                    + "shape_line column");        }        if ((textColumn = whatColumn("string")) == -1) {            throw new FormatException("texttable couldn't get "                    + "string column");        }    }    /**     * Returns the coordinate string for the text primitive     *      * @param textprim the text primitive     */    public CoordFloatString getCoordinates(List textprim) {        return (CoordFloatString) textprim.get(coordColumn);    }    /**     * Parse the text records for this tile, calling     * warehouse.createText once for each record in the selection     * region.     *      * @param warehouse the warehouse used for createText calls (must     *        not be null)     * @param dpplat threshold for latitude thinning (passed to     *        warehouse)     * @param dpplon threshold for longitude thinngin (passed to     *        warehouse)     * @param ll1 upperleft of selection region (passed to warehouse)     * @param ll2 lowerright of selection region (passed to warehouse)     * @see VPFGraphicWarehouse#createText     */    public void drawTile(VPFGraphicWarehouse warehouse, float dpplat,                         float dpplon, LatLonPoint ll1, LatLonPoint ll2) {        float ll1lat = ll1.getLatitude();        float ll1lon = ll1.getLongitude();        float ll2lat = ll2.getLatitude();        float ll2lon = ll2.getLongitude();        try {            for (List text = new ArrayList(); parseRow(text);) {                String textval = (String) text.get(textColumn);                CoordFloatString coords = (CoordFloatString) text.get(coordColumn);                float lat = coords.getYasFloat(0);                float lon = coords.getXasFloat(0);                if ((lat > ll2lat) && (lat < ll1lat) && (lon > ll1lon)                        && (lon < ll2lon)) {                    warehouse.createText(covtable,                            this,                            text,                            lat,                            lon,                            textval);                }            }        } catch (FormatException f) {            System.out.println("Exception: " + f.getClass() + " "                    + f.getMessage());        }    }    /**     * Use the warehouse to create a graphic from a feature in the     * TextTable.     *      * @param warehouse the warehouse used for createText calls (must     *        not be null)     * @param dpplat threshold for latitude thinning (passed to     *        warehouse)     * @param dpplon threshold for longitude thinngin (passed to     *        warehouse)     * @param ll1 upperleft of selection region (passed to warehouse)     * @param ll2 lowerright of selection region (passed to warehouse)     * @param text a list with the TextTable row contents.     * @param featureType the string representing the feature type, in     *        case the warehouse wants to do some intelligent     *        rendering.     * @see VPFGraphicWarehouse#createText     */    public void drawFeature(VPFFeatureWarehouse warehouse, float dpplat,                            float dpplon, LatLonPoint ll1, LatLonPoint ll2,                            List text, String featureType) {        if (warehouse == null) {            return;        }        float ll1lat = ll1.getLatitude();        float ll1lon = ll1.getLongitude();        float ll2lat = ll2.getLatitude();        float ll2lon = ll2.getLongitude();        String textval = (String) text.get(textColumn);        CoordFloatString coords = (CoordFloatString) text.get(coordColumn);        float lat = coords.getYasFloat(0);        float lon = coords.getXasFloat(0);        if ((lat > ll2lat) && (lat < ll1lat) && (lon > ll1lon)                && (lon < ll2lon)) {            warehouse.createText(covtable,                    this,                    text,                    lat,                    lon,                    textval,                    featureType);        }    }}