mehmetbebek · September 22, 2014 11:47
diff --git a/higlight.java b/higlight.java
 /*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
 package javafxapplication4;

 import java.util.ArrayList;
 import java.util.List;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import java.util.regex.PatternSyntaxException;
 import javafx.application.Application;
 import javafx.beans.value.ChangeListener;
 import javafx.beans.value.ObservableValue;
 import javafx.concurrent.Worker.State;
 import javafx.event.ActionEvent;
 import javafx.event.EventHandler;
 import javafx.fxml.FXMLLoader;
 import javafx.scene.Parent;
 import javafx.scene.Scene;
 import javafx.scene.control.Button;
 import javafx.scene.control.Label;
 import javafx.scene.control.TextArea;
 import javafx.scene.control.TextField;
 import javafx.scene.layout.GridPane;
 import javafx.scene.web.WebEngine;
 import javafx.scene.web.WebView;
 import javafx.scene.web.WebView;
 import javafx.stage.Stage;

 /**
 *
 * @author m00264122
 */
 public class JavaFXApplication4 extends Application {

    public static final int TEXT_WIDTH = 214;
    private TextField regex;
    private TextArea text;
    private WebView result;

    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage stage) throws Exception {
        GridPane root = new GridPane();
        root.setHgap(10);
        root.setVgap(4);

        Label regexLbl = new Label("Regex");
        regex = new TextField();
        regex.setMinHeight(25);
        regex.setMinWidth(TEXT_WIDTH);

        root.add(regexLbl, 0, 0);
        root.add(regex, 1, 0);

        Label textLbl = new Label("Text");
        text = new TextArea();
        text.setMinHeight(50);
        text.setPrefRowCount(10);
        text.setMinWidth(TEXT_WIDTH);

        root.add(textLbl, 0, 1);
        root.add(text, 1, 1);

        result = new WebView();

        root.add(result, 0, 2, 2, 1);

        Button match = new Button("Match");
        match.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent actionEvent) {

                matchRegExp();

            }
        });

        root.add(match, 0, 3);

        Button dumpHtml = new Button("Dump html");
        dumpHtml.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent actionEvent) {
 //System.err.println(result.getHtmlText());
            }
        });

        root.add(dumpHtml, 1, 3);

        Scene scene = new Scene(root, 800, 600);
        stage.setScene(scene);
        stage.show();
    }

    private void matchRegExp() {
        Pattern pattern = null;
        try {
            pattern = Pattern.compile(regex.getText());

        } catch (PatternSyntaxException psex) {
 //result.setHtmlText(String.format(
 //"<html><body><p>" +
 //"<span style=\"color:Red;\">%s</span>" +
 //"</p></body></html>",
 //psex.getMessage()));
            return;
        }

        Matcher matcher = pattern.matcher(text.getText());

        boolean found = false;
        StringBuilder sb = new StringBuilder();

        class Tuple {

            final int start, end;

            Tuple(int start, int end) {
                this.start = start;
                this.end = end;
            }

            @Override
            public String toString() {
                return "Tuple{start=" + start + ", end=" + end + '}';
            }
        }

        List<Tuple> positions = new ArrayList<Tuple>();

        while (matcher.find()) {
            positions.add(new Tuple(matcher.start(), matcher.end()));
            found = true;
        }
        if (!found) {
            sb.append(String.format("No match found.%n"));
        } else {
            System.out.println(positions);
            int pos = 0;
            for (int i = 0; i < positions.size(); i++) {

                sb.append(text.getText().substring(pos, positions.get(i).start))
                        .append("<span style=\"color:ForestGreen;font-size:20px;text-decoration:underline\">")
                        .append(text.getText().substring(positions.get(i).start, positions.get(i).end))
                        .append("</span>");

                pos = positions.get(i).end;
            }

            if (pos > 0) {
                sb.append(text.getText().substring(pos));
            }
        }

        String html = String.format(""
                + "<html><body><p >%s</p></body></html>", text.getText());
       
    //      final WebView webView = new WebView();
        final WebEngine engine = result.getEngine();
        
       
        getChangedEngine(engine, regex.getText());
         engine.loadContent(html);
     //   WebEngine engine = result.getEngine();
     //   engine.loadContent(html);
 //result.set setHtmlText(html);
        double rs = 0.0;
        {
            int a = 5;
        }
    }
    private WebEngine getChangedEngine(final WebEngine engine,final String searchText)
    {
          engine.getLoadWorker().stateProperty().addListener(
            new ChangeListener<State>() {
                @Override
                public void changed(ObservableValue ov, State oldState, State newState) {
                    if (newState == State.SUCCEEDED) {
                        engine.executeScript(
                                "function highlightWord(root,word){"
                                + "  textNodesUnder(root).forEach(highlightWords);"
                                + ""
                                + "  function textNodesUnder(root){"
                                + "    var n,a=[],w=document.createTreeWalker(root,NodeFilter.SHOW_TEXT,null,false);"
                                + "    while(n=w.nextNode()) a.push(n);"
                                + "    return a;"
                                + "  }"
                                + ""
                                + "  function highlightWords(n){"
                                + "    for (var i; (i=n.nodeValue.indexOf(word,i)) > -1; n=after){"
                                + "      var after = n.splitText(i+word.length);"
                                + "      var highlighted = n.splitText(i);"
                                + "      var span = document.createElement('span');"
                                + "      span.style.backgroundColor='#f00';"
                                + "      span.appendChild(highlighted);"
                                + "      after.parentNode.insertBefore(span,after);"
                                + "    }"
                                + "  }"
                                + "}"
                                + "\n"
                                + "highlightWord(document.body,'"+searchText +"');");
                    }
                }

          });
        return engine;
    }
 }

 //style='white-space: pre-wrap;'
	/*
	* To change this license header, choose License Headers in Project Properties.
	* To change this template file, choose Tools \| Templates
	* and open the template in the editor.
	*/
	package javafxapplication4;

	import java.util.ArrayList;
	import java.util.List;
	import java.util.regex.Matcher;
	import java.util.regex.Pattern;
	import java.util.regex.PatternSyntaxException;
	import javafx.application.Application;
	import javafx.beans.value.ChangeListener;
	import javafx.beans.value.ObservableValue;
	import javafx.concurrent.Worker.State;
	import javafx.event.ActionEvent;
	import javafx.event.EventHandler;
	import javafx.fxml.FXMLLoader;
	import javafx.scene.Parent;
	import javafx.scene.Scene;
	import javafx.scene.control.Button;
	import javafx.scene.control.Label;
	import javafx.scene.control.TextArea;
	import javafx.scene.control.TextField;
	import javafx.scene.layout.GridPane;
	import javafx.scene.web.WebEngine;
	import javafx.scene.web.WebView;
	import javafx.scene.web.WebView;
	import javafx.stage.Stage;

	/**
	*
	* @author m00264122
	*/
	public class JavaFXApplication4 extends Application {

	public static final int TEXT_WIDTH = 214;
	private TextField regex;
	private TextArea text;
	private WebView result;

	public static void main(String[] args) {
	launch(args);
	}

	@Override
	public void start(Stage stage) throws Exception {
	GridPane root = new GridPane();
	root.setHgap(10);
	root.setVgap(4);

	Label regexLbl = new Label("Regex");
	regex = new TextField();
	regex.setMinHeight(25);
	regex.setMinWidth(TEXT_WIDTH);

	root.add(regexLbl, 0, 0);
	root.add(regex, 1, 0);

	Label textLbl = new Label("Text");
	text = new TextArea();
	text.setMinHeight(50);
	text.setPrefRowCount(10);
	text.setMinWidth(TEXT_WIDTH);

	root.add(textLbl, 0, 1);
	root.add(text, 1, 1);

	result = new WebView();

	root.add(result, 0, 2, 2, 1);

	Button match = new Button("Match");
	match.setOnAction(new EventHandler<ActionEvent>() {
	@Override
	public void handle(ActionEvent actionEvent) {

	matchRegExp();

	}
	});

	root.add(match, 0, 3);

	Button dumpHtml = new Button("Dump html");
	dumpHtml.setOnAction(new EventHandler<ActionEvent>() {
	@Override
	public void handle(ActionEvent actionEvent) {
	//System.err.println(result.getHtmlText());
	}
	});

	root.add(dumpHtml, 1, 3);

	Scene scene = new Scene(root, 800, 600);
	stage.setScene(scene);
	stage.show();
	}

	private void matchRegExp() {
	Pattern pattern = null;
	try {
	pattern = Pattern.compile(regex.getText());

	} catch (PatternSyntaxException psex) {
	//result.setHtmlText(String.format(
	//"<html><body><p>" +
	//"<span style=\"color:Red;\">%s</span>" +
	//"</p></body></html>",
	//psex.getMessage()));
	return;
	}

	Matcher matcher = pattern.matcher(text.getText());

	boolean found = false;
	StringBuilder sb = new StringBuilder();

	class Tuple {

	final int start, end;

	Tuple(int start, int end) {
	this.start = start;
	this.end = end;
	}

	@Override
	public String toString() {
	return "Tuple{start=" + start + ", end=" + end + '}';
	}
	}

	List<Tuple> positions = new ArrayList<Tuple>();

	while (matcher.find()) {
	positions.add(new Tuple(matcher.start(), matcher.end()));
	found = true;
	}
	if (!found) {
	sb.append(String.format("No match found.%n"));
	} else {
	System.out.println(positions);
	int pos = 0;
	for (int i = 0; i < positions.size(); i++) {

	sb.append(text.getText().substring(pos, positions.get(i).start))
	.append("<span style=\"color:ForestGreen;font-size:20px;text-decoration:underline\">")
	.append(text.getText().substring(positions.get(i).start, positions.get(i).end))
	.append("</span>");

	pos = positions.get(i).end;
	}

	if (pos > 0) {
	sb.append(text.getText().substring(pos));
	}
	}

	String html = String.format(""
	+ "<html><body><p >%s</p></body></html>", text.getText());

	// final WebView webView = new WebView();
	final WebEngine engine = result.getEngine();


	getChangedEngine(engine, regex.getText());
	engine.loadContent(html);
	// WebEngine engine = result.getEngine();
	// engine.loadContent(html);
	//result.set setHtmlText(html);
	double rs = 0.0;
	{
	int a = 5;
	}
	}
	private WebEngine getChangedEngine(final WebEngine engine,final String searchText)
	{
	engine.getLoadWorker().stateProperty().addListener(
	new ChangeListener<State>() {
	@Override
	public void changed(ObservableValue ov, State oldState, State newState) {
	if (newState == State.SUCCEEDED) {
	engine.executeScript(
	"function highlightWord(root,word){"
	+ " textNodesUnder(root).forEach(highlightWords);"
	+ ""
	+ " function textNodesUnder(root){"
	+ " var n,a=[],w=document.createTreeWalker(root,NodeFilter.SHOW_TEXT,null,false);"
	+ " while(n=w.nextNode()) a.push(n);"
	+ " return a;"
	+ " }"
	+ ""
	+ " function highlightWords(n){"
	+ " for (var i; (i=n.nodeValue.indexOf(word,i)) > -1; n=after){"
	+ " var after = n.splitText(i+word.length);"
	+ " var highlighted = n.splitText(i);"
	+ " var span = document.createElement('span');"
	+ " span.style.backgroundColor='#f00';"
	+ " span.appendChild(highlighted);"
	+ " after.parentNode.insertBefore(span,after);"
	+ " }"
	+ " }"
	+ "}"
	+ "\n"
	+ "highlightWord(document.body,'"+searchText +"');");
	}
	}

	});
	return engine;
	}
	}

	//style='white-space: pre-wrap;'