Marc Nause
13 years ago
parent
77f8e9fb9b
commit
a691023d04
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package net.yacy.peers.graphics;
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import java.awt.image.BufferedImage;
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import java.text.DecimalFormat;
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import java.text.DecimalFormatSymbols;
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import net.yacy.visualization.PrintTool;
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import net.yacy.visualization.RasterPlotter;
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/**
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* Creates banner which displays dtat about peer and network.
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*/
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public final class Banner {
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/** Private constructor to avoid instantiation of utility class. */
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private Banner() { }
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/** Always use dot as decimal separator since
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* banner text is always in English.
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*/
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private static final DecimalFormatSymbols DFS =
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new DecimalFormatSymbols();
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static {
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DFS.setDecimalSeparator('.');
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}
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private static RasterPlotter bannerPicture = null;
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private static BufferedImage logo = null;
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private static long bannerPictureDate = 0;
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/**
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* Creates new banner image if max age has been reached,
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* else returns cached version.
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* @param data data to display
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* @param maxAge age in ms since 01.01.1970
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* @return banner image
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*/
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public static RasterPlotter getBannerPicture(
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final BannerData data, final long maxAge) {
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if ((bannerPicture == null)
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|| ((System.currentTimeMillis() - bannerPictureDate) > maxAge)) {
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drawBannerPicture(data, logo);
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}
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return bannerPicture;
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}
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/**
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* Creates new banner image if max age has been reached,
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* else returns cached version.
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* @param data data to display
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* @param maxAge age in ms since 01.01.1970
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* @param newLogo logo to display
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* @return banner image
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*/
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public static RasterPlotter getBannerPicture(
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final BannerData data,
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final long maxAge,
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final BufferedImage newLogo) {
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if ((bannerPicture == null)
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|| ((System.currentTimeMillis() - bannerPictureDate) > maxAge)) {
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drawBannerPicture(data, newLogo);
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}
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return bannerPicture;
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}
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private static void drawBannerPicture(
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final BannerData data, final BufferedImage newLogo) {
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final int exprlength = 19;
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logo = newLogo;
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bannerPicture =
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new RasterPlotter(
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data.getWidth(),
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data.getHeight(),
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RasterPlotter.DrawMode.MODE_REPLACE,
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data.getBgcolor());
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final int height = data.getHeight();
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final int width = data.getWidth();
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// draw description
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bannerPicture.setColor(data.getTextcolor());
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PrintTool.print(bannerPicture, 100, 12, 0, "PEER: " + addTrailingBlanks(data.getName(), exprlength), -1);
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PrintTool.print(bannerPicture, 100, 22, 0, "LINKS: " + addBlanksAndDots(data.getLinks(), exprlength), -1);
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PrintTool.print(bannerPicture, 100, 32, 0, "WORDS: " + addBlanksAndDots(data.getWords(), exprlength), -1);
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PrintTool.print(bannerPicture, 100, 42, 0, "TYPE: " + addTrailingBlanks(data.getType(), exprlength), -1);
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PrintTool.print(bannerPicture, 100, 52, 0, "SPEED: " + addTrailingBlanks(data.getPpm() + " PAGES/MINUTE", exprlength), -1);
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PrintTool.print(bannerPicture, 285, 12, 0, "NETWORK: " + addTrailingBlanks(data.getNetwork() + " [" + data.getPeers() + "]", exprlength), -1);
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PrintTool.print(bannerPicture, 285, 22, 0, "LINKS: " + addBlanksAndDots(data.getNlinks(), exprlength), -1);
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PrintTool.print(bannerPicture, 285, 32, 0, "WORDS: " + addBlanksAndDots(data.getNwords(), exprlength), -1);
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PrintTool.print(bannerPicture, 285, 42, 0, "QUERIES: " + addTrailingBlanks(formatQpm(data.getNqph()) + " QUERIES/HOUR", exprlength), -1);
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PrintTool.print(bannerPicture, 285, 52, 0, "SPEED: " + addTrailingBlanks(data.getNppm() + " PAGES/MINUTE", exprlength), -1);
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if (logo != null) {
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final int x = (100 / 2 - logo.getWidth() / 2);
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final int y = (height / 2 - logo.getHeight() / 2);
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bannerPicture.insertBitmap(logo, x, y, 0, 0, RasterPlotter.FilterMode.FILTER_ANTIALIASING);
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}
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final String bordercolor = data.getBordercolor();
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if (bordercolor != null && !bordercolor.isEmpty()) {
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bannerPicture.setColor(bordercolor);
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bannerPicture.line(0, 0, 0, height - 1, 100);
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bannerPicture.line(0, 0, width - 1, 0, 100);
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bannerPicture.line(width - 1, 0, width - 1, height - 1, 100);
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bannerPicture.line(0, height - 1, width - 1, height - 1, 100);
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}
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// set timestamp
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bannerPictureDate = System.currentTimeMillis();
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}
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private static String addBlanksAndDots(final long input, final int length) {
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return addBlanksAndDots(Long.toString(input), length);
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}
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private static String addBlanksAndDots(String input, final int length) {
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input = addDots(input);
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input = addTrailingBlanks(input,length);
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return input;
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}
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private static String addDots(String word) {
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String tmp = "";
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int len = word.length();
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if (len > 3) {
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while (len > 3) {
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if (tmp.equals("")) {
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tmp = word.substring(len - 3,len);
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} else {
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tmp = word.substring(len - 3,len) + "." + tmp;
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}
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word = word.substring(0,len - 3);
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len = word.length();
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}
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word = word + "." + tmp;
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}
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return word;
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}
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private static String addTrailingBlanks(String word, int length) {
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if (length > word.length()) {
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String blanks = "";
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length = length - word.length();
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int i = 0;
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while (i++ < length) {
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blanks += " ";
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}
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word = blanks + word;
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}
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return word;
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}
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private static String formatQpm(final double qpm) {
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final String ret;
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if (qpm < 10) {
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ret = new DecimalFormat("0.00", DFS).format(qpm);
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} else {
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ret = Long.toString(Math.round(qpm));
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}
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return ret;
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}
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/**
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* Tells if a logo has been set.
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* @return true if logo has been set, else false
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*/
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public static boolean logoIsLoaded() {
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if (logo == null) {
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return false;
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}
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return true;
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}
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}
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@ -0,0 +1,122 @@
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package net.yacy.peers.graphics;
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public class BannerData {
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private final int width;
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private final int height;
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private final String bgcolor;
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private final String textcolor;
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private final String bordercolor;
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private final String name;
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private final long links;
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private final long words;
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private final String type;
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private final int ppm;
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private final String network;
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private final int peers;
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private final long nlinks;
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private final long nwords;
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private final double nqph;
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private final long nppm;
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public BannerData(
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final int width,
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final int height,
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final String bgcolor,
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final String textcolor,
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final String bordercolor,
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final String name,
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final long links,
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final long words,
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final String type,
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final int ppm,
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final String network,
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final int peers,
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final long nlinks,
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final long nwords,
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final double nqph,
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final long nppm
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) {
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this.width = width;
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this.height = height;
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this.bgcolor = bgcolor;
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this.textcolor = textcolor;
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this.bordercolor = bordercolor;
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this.name = name;
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this.links = links;
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this.words = words;
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this.type = type;
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this.ppm = ppm;
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this.network = network;
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this.peers = peers;
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this.nlinks = nlinks;
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this.nwords = nwords;
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this.nqph = nqph;
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this.nppm = nppm;
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}
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public final int getWidth() {
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return width;
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}
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public final int getHeight() {
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return height;
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}
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public final String getBgcolor() {
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return bgcolor;
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}
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public final String getTextcolor() {
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return textcolor;
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}
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public final String getBordercolor() {
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return bordercolor;
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}
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public final String getName() {
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return name;
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}
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public final long getLinks() {
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return links;
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}
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public final long getWords() {
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return words;
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}
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public final String getType() {
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return type;
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}
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public final int getPpm() {
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return ppm;
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}
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public final String getNetwork() {
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return network;
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}
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public final int getPeers() {
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return peers;
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}
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public final long getNlinks() {
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return nlinks;
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}
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public final long getNwords() {
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return nwords;
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}
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public final double getNqph() {
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return nqph;
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}
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public final long getNppm() {
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return nppm;
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}
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}
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