From 31b7641ec7724f7eb2b5833c71705d176cb1bfdf Mon Sep 17 00:00:00 2001 From: Stefan Suhren Date: Tue, 14 Apr 2015 17:00:22 +0200 Subject: Includes validator framework and completes Task 3 --- .../in/inf/java2/aufgabe03/EmailTextField.java | 25 ++++++ .../fhswf/in/inf/java2/aufgabe03/JavaFxMain.java | 47 ++++++++++++ .../in/inf/java2/aufgabe03/RegExTextField.java | 89 ++++++++++++++++++++++ .../in/inf/java2/aufgabe03/RegExValidator.java | 45 +++++++++++ 4 files changed, 206 insertions(+) create mode 100644 src/de/fhswf/in/inf/java2/aufgabe03/EmailTextField.java create mode 100644 src/de/fhswf/in/inf/java2/aufgabe03/JavaFxMain.java create mode 100644 src/de/fhswf/in/inf/java2/aufgabe03/RegExTextField.java create mode 100644 src/de/fhswf/in/inf/java2/aufgabe03/RegExValidator.java (limited to 'src/de/fhswf/in/inf/java2') diff --git a/src/de/fhswf/in/inf/java2/aufgabe03/EmailTextField.java b/src/de/fhswf/in/inf/java2/aufgabe03/EmailTextField.java new file mode 100644 index 0000000..e68860c --- /dev/null +++ b/src/de/fhswf/in/inf/java2/aufgabe03/EmailTextField.java @@ -0,0 +1,25 @@ +/** + * File for the EmailTextField class. + */ + +package de.fhswf.in.inf.java2.aufgabe03; + +/** + * A text field that validates email addresses and gives optical feedback. + * + * @author $Author: $ + * @version $Revision: $, $Date: $ UTC + */ +public class EmailTextField extends RegExTextField +{ + + /** + * Creates a RegExTextField that only accepts email addresses. + * + */ + public EmailTextField() + { + super("\\b[a-zA-Z0-9._%-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,4}\\b", "E-Mail"); + } + +} diff --git a/src/de/fhswf/in/inf/java2/aufgabe03/JavaFxMain.java b/src/de/fhswf/in/inf/java2/aufgabe03/JavaFxMain.java new file mode 100644 index 0000000..b822b5f --- /dev/null +++ b/src/de/fhswf/in/inf/java2/aufgabe03/JavaFxMain.java @@ -0,0 +1,47 @@ +/* + * + */ + +package de.fhswf.in.inf.java2.aufgabe03; + +import javafx.application.Application; +import javafx.scene.Scene; +import javafx.scene.layout.VBox; +import javafx.stage.Stage; + +/** + * The loader for a RegExTextField that validates e-mail addresses. + * + * @author $Author: $ + * @version $Revision: $, $Date: $ UTC + */ +public class JavaFxMain extends Application +{ + + /* + * (non-Javadoc) + * + * @see javafx.application.Application#start(javafx.stage.Stage) + */ + @Override + public void start(Stage primaryStage) + { + RegExTextField regText = new RegExTextField("[a-z]"); + EmailTextField emaText = new EmailTextField(); + VBox vbox = new VBox(regText, emaText); + Scene scene = new Scene(vbox); + primaryStage.setScene(scene); + primaryStage.show(); + } + + /** + * Loads the main window of this application. + * + * @param args + * Command line arguments + */ + public static void main(String[] args) + { + launch(args); + } +} diff --git a/src/de/fhswf/in/inf/java2/aufgabe03/RegExTextField.java b/src/de/fhswf/in/inf/java2/aufgabe03/RegExTextField.java new file mode 100644 index 0000000..cc68ff2 --- /dev/null +++ b/src/de/fhswf/in/inf/java2/aufgabe03/RegExTextField.java @@ -0,0 +1,89 @@ +/** + * File containing the RegExTextField class. + */ + +package de.fhswf.in.inf.java2.aufgabe03; + +import javafx.scene.control.ContentDisplay; +import javafx.scene.control.Label; +import javafx.scene.control.TextField; +import javafx.scene.image.Image; +import javafx.scene.image.ImageView; +import javafx.scene.layout.HBox; + +/** + * A class that checks an input against a regex and gives optical feedback. + * + * @author $Author: $ + * @version $Revision: $, $Date: $ UTC + */ +public class RegExTextField extends HBox +{ + + private Label label; + + private TextField textField; + + private RegExValidator rv; + + /** + * Creates an element that checks regexes. + * + * @param regEx + * The regex to check the text field against. + */ + public RegExTextField(String regEx) + { + this(regEx, "regEx"); + } + + /** + * Creates an element that checks regexes. + * + * @param regEx + * The regex to check the text field against. + * @param labelText + * An optional label that is shown before the text field. + */ + public RegExTextField(String regEx, String labelText) + { + if (regEx == null) + { + throw new IllegalArgumentException("RegEx can't be null."); + } + if (regEx.isEmpty()) + { + throw new IllegalArgumentException("RegEx can't be empty."); + } + if (labelText == null) + { + throw new IllegalArgumentException("labelText can't be null."); + } + if (labelText.isEmpty()) + { + throw new IllegalArgumentException("labelText can't be empty."); + } + + label = new Label(labelText); + textField = new TextField(); + + label.setContentDisplay(ContentDisplay.RIGHT); + + this.getChildren().addAll(label, textField); + + rv = new RegExValidator(regEx); + rv.addStatusListener(e -> { + if (!e.isStatus()) + { + label.setGraphic(new ImageView(new Image("img/error.png"))); + } + else + { + label.setGraphic(null); + } + }); + + textField.textProperty().addListener(rv); + } + +} diff --git a/src/de/fhswf/in/inf/java2/aufgabe03/RegExValidator.java b/src/de/fhswf/in/inf/java2/aufgabe03/RegExValidator.java new file mode 100644 index 0000000..e17b5ca --- /dev/null +++ b/src/de/fhswf/in/inf/java2/aufgabe03/RegExValidator.java @@ -0,0 +1,45 @@ +/** + * Java file containing the RegExValidator class. + */ + +package de.fhswf.in.inf.java2.aufgabe03; + +import java.util.regex.Pattern; + +import de.fhswf.fbin.java2fx.validation.ValidationAdapter; + +/** + * A class that checks if a given string matches a predefined regex. + * + * @author $Author: $ + * @version $Revision: $, $Date: $ UTC + */ +public class RegExValidator extends ValidationAdapter +{ + + private Pattern validRegEx; + + /** + * A validator that checks a specific regex. + * + * @param validRegEx + * The regex to validate against + */ + public RegExValidator(String validRegEx) + { + this.validRegEx = Pattern.compile(validRegEx); + } + + /* + * (non-Javadoc) + * + * @see + * de.fhswf.fbin.java2fx.validation.Validator#isValid(java.lang.Object) + */ + @Override + public boolean isValid(String value) + { + return validRegEx.matcher(value).matches(); + } + +} -- cgit v1.2.3-70-g09d2