Java CodeArea类代码示例

import org.fxmisc.richtext.CodeArea; //导入依赖的package包/类
/**
 * 
 * @param codeArea
 * @param suggestionProvider
 * @param replaceTextProvider
 *          When a suggestion entered, which range of text should be replaced.
 */
public AutoCompletionCodeAreaBind(CodeArea codeArea,
    BiFunction<String, Integer, Collection<String>> suggestionProvider,
    BiFunction<String, Integer, IndexRange> replaceTextProvider) {
  this.codeArea = codeArea;
  this.suggestionProvider = suggestionProvider;
  this.replaceTextProvider = replaceTextProvider;
  this.popup = new AutoCompletePopup<>();

  codeArea.textProperty().addListener(textChangeListener);
  codeArea.focusedProperty().addListener(focusChangedListener);

  codeArea.setPopupWindow(popup);
  codeArea.setPopupAlignment(PopupAlignment.CARET_BOTTOM);

  popup.setOnSuggestion(sce -> {
    completeUserInput(sce.getSuggestion());
    hidePopup();
  });
}
 

import org.fxmisc.richtext.CodeArea; //导入依赖的package包/类
protected void fillCodeArea(CodeArea area, String fileName) throws IOException {
    area.richChanges()
            .filter(ch -> !ch.getInserted().equals(ch.getRemoved())) // XXX
            .subscribe(change -> {
                        area.setStyleSpans(
                                0,
                                HighlightProvider.computeHighlighting(
                                        area.getText(),
                                        HighlightProvider.resolvePattern(fileName)
                                )
                        );
                    }
            );

    area.replaceText(0, 0, new String(
                    Files.readAllBytes((new File(fileName)).toPath()),
                    "UTF-8"
            )
    );

}
 

import org.fxmisc.richtext.CodeArea; //导入依赖的package包/类
public void compute(String text, CodeArea parent) {

        Matcher matcher = getHighlightingPattern().matcher(text);

        while(matcher.find()) {

            String styleClass = getStyleClass(matcher);
            // For now lets setStyles for base style.
            parent.setStyle(matcher.start(), matcher.end(), Collections.singleton(styleClass));

            // Then we can grab the style from the document via subView and overlay
            for(HighlightStyle style : getChildStyles(styleClass, getText(matcher.start(), matcher.end(), parent))){
                StyleSpans spans = parent.getStyleSpans(matcher.start(), matcher.end()).subView(style.start, style.end).overlay(
                        StyleSpans.singleton(new StyleSpan<>(
                                Arrays.asList(style.styleClasses),
                                (style.end - style.start)
                        )),
                        (strings, strings2) -> {
                            Collection<String> coll = Streams.concat(strings.stream(), strings2.stream()).collect(Collectors.toList());
                            logger.debug(coll.toString());
                            return coll;
                        }
                );
                parent.setStyleSpans(matcher.start(), spans); // Reset styles
            }
        }

    }
 

import org.fxmisc.richtext.CodeArea; //导入依赖的package包/类
private void configureTextArea() {
    CodeArea codeArea = view.getCodeArea();
    code.sourcecodeProperty().bind(codeArea.textProperty());
    codeArea.richChanges()
            .filter(ch -> !ch.getInserted().equals(ch.getRemoved()))
            .successionEnds(Duration.ofMillis(500))
            .hook(collectionRichTextChange -> codeArea.getUndoManager()
                    .mark()).supplyTask(this::computeHighlightingAsync)
            .awaitLatest(codeArea.richChanges()).filterMap(t -> {
        if (t.isSuccess()) {
            return Optional.of(t.get());
        }
        else {
            t.getFailure().printStackTrace();
            return Optional.empty();
        }
    }).subscribe(this::handleTextChange);
}
 

import org.fxmisc.richtext.CodeArea; //导入依赖的package包/类
/**
 * <p>
 * Creates an editable EditorPane with the given code as initial source code text.
 * </p>
 *
 * @param code the string to initialize the {@link CodeArea} to
 * @param syntaxErrors the initial list of {@link SyntaxError}s.
 * @param showLineNumbers whether to show line numbers in the {@link CodeArea}
 */
public EditorPane(String code, ObservableList<SyntaxError> syntaxErrors,
    boolean showLineNumbers) {
  super();
  this.syntaxErrors = syntaxErrors;
  ViewUtils.setupView(this);

  codeArea = new CodeArea(code);
  lineNumberFactory = LineNumberFactory.get(codeArea);
  if (showLineNumbers) {
    codeArea.setParagraphGraphicFactory(this::createLinePrefixForLine);
  }
  this.getItems().addAll(codeArea);
  this.setOrientation(Orientation.VERTICAL);
  this.setDividerPositions(0.8);
}
 

import org.fxmisc.richtext.CodeArea; //导入依赖的package包/类
/**
 * Instantiates a new Groovy editor component.
 *
 * @param editable the editable
 */
public GroovyEditorComponent(final boolean editable) {

    codeArea = new CodeArea();
    codeArea.richChanges()
            .filter(ch -> !ch.getInserted().equals(ch.getRemoved()))
            .subscribe(change -> codeArea.setStyleSpans(0, getStyleSpans(codeArea.getText())));
    codeArea.prefHeightProperty().bind(heightProperty());
    codeArea.prefWidthProperty().bind(widthProperty());
    codeArea.setEditable(editable);
    codeArea.setOnKeyReleased(UIUtils::consumeIfIsNotHotKey);
    codeArea.setOnKeyPressed(UIUtils::consumeIfIsNotHotKey);


    FXUtils.addToPane(codeArea, this);
    FXUtils.addClassesTo(this, CSSClasses.TEXT_EDITOR_TEXT_AREA, CSSClasses.GROOVY_EDITOR_COMPONENT);
}
 

import org.fxmisc.richtext.CodeArea; //导入依赖的package包/类
@Override
	protected ScriptEditorControl getNewConsole() {
		try {
			CodeArea codeArea = new CodeArea();
			codeArea.richChanges().subscribe(change -> {
				// If anything was removed, do full reformatting
				if (change.getRemoved().length() != 0 || change.getPosition() == 0) {
					if (!change.getRemoved().getText().equals(change.getInserted().getText()))
//						System.err.println("Slow version!");
						codeArea.setStyleSpans(0, computeConsoleHighlighting(codeArea.getText()));					
				} else {
//					System.err.println("FAST version!");
					// Otherwise format only from changed position onwards
					codeArea.setStyleSpans(change.getPosition(), computeConsoleHighlighting(change.getInserted().getText()));
				}
//	            codeArea.setStyleSpans(0, computeConsoleHighlighting(codeArea.getText()));					
	        });
			codeArea.getStylesheets().add(getClass().getClassLoader().getResource("scripting_styles.css").toExternalForm());
			return new CodeAreaControl(codeArea);
		} catch (Exception e) {
			// Default to superclass implementation
			logger.error("Unable to create console area", e);
			return super.getNewEditor();
		}
	}
 

import org.fxmisc.richtext.CodeArea; //导入依赖的package包/类
public Optional<String> editDocument(String formattedJson, int cursorPosition) {
  Dialog<String> dialog = new Dialog<>();
  dialog.getDialogPane().getButtonTypes().addAll(ButtonType.OK, ButtonType.CANCEL);
  dialog.setTitle("MongoFX - edit document");
  dialog.setResizable(true);
  dialog.getDialogPane().getStylesheets().add(getClass().getResource("/ui/editor.css").toExternalForm());

  CodeArea codeArea = setupEditorArea(formattedJson, dialog, cursorPosition);

  dialog.setResultConverter(bt -> {
    if (ButtonData.OK_DONE == bt.getButtonData()) {
      return codeArea.getText();
    }
    return null;
  });
  return dialog.showAndWait();
}
 

import org.fxmisc.richtext.CodeArea; //导入依赖的package包/类
private CodeArea setupEditorArea(String formattedJson, Dialog<String> dialog, int cursorPosition) {
  URL url = getClass().getResource("/ui/Editor.fxml");
  final FXMLLoader loader = createLoader(url);
  BorderPane root = load(url, loader);
  EditorController editorController = loader.getController();
  CodeArea codeArea = editorController.getCodeArea();
  codeArea.setPrefSize(500, 400);
  codeArea.replaceText(formattedJson);
  codeArea.getUndoManager().forgetHistory();

  // stackpane is workaround https://github.com/TomasMikula/RichTextFX/issues/196
  dialog.getDialogPane().setContent(new StackPane(root));
  Platform.runLater(() -> {
    codeArea.selectRange(cursorPosition, cursorPosition);
    codeArea.requestFocus();
  });
  return codeArea;
}
 

import org.fxmisc.richtext.CodeArea; //导入依赖的package包/类
@Override
public void start(Stage stage) throws Exception {
    area = new CodeArea();
    area.appendText("some example\n text to go here\n across a couple of \n lines....");
    JabRefPreferences preferences = mock(JabRefPreferences.class, Answers.RETURNS_DEEP_STUBS);
    sourceTab = new SourceTab(new BibDatabaseContext(), new CountingUndoManager(), new LatexFieldFormatterPreferences(), preferences, new DummyFileUpdateMonitor());
    pane = new TabPane(
            new Tab("main area", area),
            new Tab("other tab", new Label("some text")),
            sourceTab
    );
    scene = new Scene(pane);
    this.stage = stage;

    stage.setScene(scene);
    stage.setWidth(400);
    stage.setHeight(400);
    stage.show();

    // select the area's tab
    pane.getSelectionModel().select(0);
}
 

import org.fxmisc.richtext.CodeArea; //导入依赖的package包/类
@Override
  public void start(Stage primaryStage) {
      CodeArea codeArea = new CodeArea();
      codeArea.setParagraphGraphicFactory(LineNumberFactory.get(codeArea));

      codeArea.textProperty().addListener((obs, oldText, newText) -> {
          codeArea.setStyleSpans(0, computeHighlighting(newText));
      });
      codeArea.replaceText(0, 0, sampleCode);

Scene scene = new Scene(new StackPane(new VirtualizedScrollPane<>(codeArea)), 600, 400);
      scene.getStylesheets().add(XMLEditor.class.getResource("xml-highlighting.css").toExternalForm());
      primaryStage.setScene(scene);
      primaryStage.setTitle("XML Editor Demo");
      primaryStage.show();
  }
 

import org.fxmisc.richtext.CodeArea; //导入依赖的package包/类
@Override
public void start(Stage primaryStage) {
    CodeArea codeArea = new CodeArea();

    IntFunction<Node> numberFactory = LineNumberFactory.get(codeArea);
    IntFunction<Node> arrowFactory = new ArrowFactory(codeArea.currentParagraphProperty());
    IntFunction<Node> graphicFactory = line -> {
        HBox hbox = new HBox(
                numberFactory.apply(line),
                arrowFactory.apply(line));
        hbox.setAlignment(Pos.CENTER_LEFT);
        return hbox;
    };
    codeArea.setParagraphGraphicFactory(graphicFactory);
    codeArea.replaceText("The green arrow will only be on the line where the caret appears.\n\nTry it.");
    codeArea.moveTo(0, 0);

    primaryStage.setScene(new Scene(new StackPane(codeArea), 600, 400));
    primaryStage.show();
}
 

import org.fxmisc.richtext.CodeArea; //导入依赖的package包/类
@Override
public void start(Stage primaryStage) {
    CodeArea codeArea = new CodeArea();
    codeArea.setParagraphGraphicFactory(LineNumberFactory.get(codeArea));

    codeArea.richChanges()
            .filter(ch -> !ch.getInserted().equals(ch.getRemoved())) // XXX
            .subscribe(change -> {
                codeArea.setStyleSpans(0, computeHighlighting(codeArea.getText()));
            });
    codeArea.replaceText(0, 0, sampleCode);

    Scene scene = new Scene(new StackPane(new VirtualizedScrollPane<>(codeArea)), 600, 400);
    scene.getStylesheets().add(JavaKeywordsAsync.class.getResource("java-keywords.css").toExternalForm());
    primaryStage.setScene(scene);
    primaryStage.setTitle("Java Keywords Demo");
    primaryStage.show();
}
 

import org.fxmisc.richtext.CodeArea; //导入依赖的package包/类
public static void computeHighlighting(String text, CodeArea parent) {
    Matcher matcher = HIGHLIGHTING_PATTERN.matcher(text);

    List<StyleIndex> styleChanges = Lists.newArrayList();

    while(matcher.find()) {

        String styleClass =
                matcher.group("HRULE") != null ? "hrule" :
                matcher.group("HEADING1") != null ? "heading1" :
                matcher.group("HEADING2") != null ? "heading2" :
                matcher.group("HEADING3") != null ? "heading3" :
                matcher.group("HEADING4") != null ? "heading4" :
                matcher.group("HEADING5") != null ? "heading5" :
                matcher.group("HEADING6") != null ? "heading6" :
                matcher.group("BOLD") != null ? "bold" :
                matcher.group("ITALICS") != null ? "italics" :
                matcher.group("STRIKE") != null ? "strikethrough" :
                matcher.group("INLINECODE") != null ? "inline-code" :
                matcher.group("IMAGE") != null ? "image" :
                matcher.group("LINK") != null ? "link" :
                matcher.group("CODE") != null ? "code" :
                null;
        parent.setStyle(matcher.start(), matcher.end(), Collections.singleton(styleClass));

        /*StyleIndex index = new StyleIndex(matcher.start(), matcher.end());
        index.addStyle(styleClass);
        styleChanges.add(index);*/

    }
}
 

import org.fxmisc.richtext.CodeArea; //导入依赖的package包/类
@Override
public void run() {
    tabs.stream()
            .map(tab -> {
                Path path = (Path) tab.getUserData();

                VirtualizedScrollPane scrollPane = (VirtualizedScrollPane) tab.getContent();
                CodeArea codeArea = (CodeArea) scrollPane.getContent();
                String lines = codeArea.getText();

                return new ExistFileToSave(lines, path);
            })
            .forEach(ExistFileToSave::save);
}