javax.swing.JEditorPane#setSize ( )源码实例Demo

public static void main(String[] args) throws Exception {
	//load the webpage into the editor
	//JEditorPane ed = new JEditorPane(new URL("http://www.google.com"));
	JEditorPane ed = new JEditorPane(new URL("http://www.baidu.com"));
	System.out.println("10");
	Thread.sleep(10000);
	ed.setSize(1000,1000);

	//create a new image
	BufferedImage image = new BufferedImage(ed.getWidth(), ed.getHeight(),
	                                        BufferedImage.TYPE_INT_ARGB);

	//paint the editor onto the image
	SwingUtilities.paintComponent(image.createGraphics(), 
	                              ed, 
	                              new JPanel(), 
	                              0, 0, image.getWidth(), image.getHeight());
	//save the image to file
	ImageIO.write((RenderedImage)image, "png", new File("html1.png"));
		System.out.println("ok");

}
 

private double getAdjustedHeight(){
    JEditorPane fakePane = new JEditorPane();
    fakePane.setEditable(false);
    fakePane.setBorder(null);
    fakePane.setContentType("text/html"); // NOI18N
    fakePane.setFont(description.getFont());
    Dimension size = description.getPreferredSize();
    size.setSize( size.getWidth(), Short.MAX_VALUE);
    fakePane.setSize( size);
    fakePane.setText(description.getText());
    Font font = description.getFont();
    String bodyRule = "body { font-family: " + font.getFamily() + "; " +
            "font-size: " + font.getSize() + "pt; }";
    ((HTMLDocument)fakePane.getDocument()).getStyleSheet().addRule(bodyRule);
    return fakePane.getPreferredSize().getHeight();
}
 

/**
 * Calculates the preferred height of an editor pane with the given fixed width for the
 * specified string.
 *
 * @param comment
 *            the annotation comment string
 * @param width
 *            the width of the content
 * @return the preferred height given the comment
 */
public static int getContentHeight(final String comment, final int width, final Font font) {
	if (comment == null) {
		throw new IllegalArgumentException("comment must not be null!");
	}
	// do not create Swing components for headless mode
	if (RapidMiner.getExecutionMode().isHeadless()) {
		return 0;
	}
	JEditorPane dummyEditorPane = new JEditorPane("text/html", "");
	dummyEditorPane.setText(comment);
	dummyEditorPane.setBorder(null);
	dummyEditorPane.setSize(width, Short.MAX_VALUE);
	dummyEditorPane.putClientProperty(JEditorPane.HONOR_DISPLAY_PROPERTIES, Boolean.TRUE);
	dummyEditorPane.setFont(font);

	// height is not exact. Multiply by magic number to get a more fitting value...
	if (SystemInfoUtilities.getOperatingSystem() == OperatingSystem.OSX
			|| SystemInfoUtilities.getOperatingSystem() == OperatingSystem.UNIX
			|| SystemInfoUtilities.getOperatingSystem() == OperatingSystem.SOLARIS) {
		return (int) (dummyEditorPane.getPreferredSize().getHeight() * 1.05f);
	} else {
		return (int) dummyEditorPane.getPreferredSize().getHeight();
	}
}
 

@Override
public JRPrintImage createImageFromElement(JRGenericPrintElement element) {
	String htmlContent = (String) element.getParameterValue(HtmlPrintElement.PARAMETER_HTML_CONTENT);
	String scaleType = (String) element.getParameterValue(HtmlPrintElement.PARAMETER_SCALE_TYPE);
	String horizontalAlignment = (String) element.getParameterValue(HtmlPrintElement.PARAMETER_HORIZONTAL_ALIGN);
	String verticalAlignment = (String) element.getParameterValue(HtmlPrintElement.PARAMETER_VERTICAL_ALIGN);
	
	JEditorPane editorPane = new JEditorPane();
	editorPane.setEditorKitForContentType("text/html", new SynchronousImageLoaderKit());
	editorPane.setContentType("text/html");
	
	editorPane.setText(htmlContent);
	editorPane.setBorder(null);
	editorPane.setSize(editorPane.getPreferredSize());

	JRBasePrintImage printImage = new JRBasePrintImage(element.getDefaultStyleProvider());
	printImage.setX(element.getX());
	printImage.setY(element.getY());
	printImage.setWidth(element.getWidth());
	printImage.setHeight(element.getHeight());
	printImage.setScaleImage(ScaleImageEnum.getByName(scaleType));
	printImage.setHorizontalImageAlign(HorizontalImageAlignEnum.getByName(horizontalAlignment));
	printImage.setVerticalImageAlign(VerticalImageAlignEnum.getByName(verticalAlignment));
	printImage.setStyle(element.getStyle());
	printImage.setMode(element.getModeValue());
	printImage.setBackcolor(element.getBackcolor());
	printImage.setForecolor(element.getForecolor());
	printImage.setRenderer(new AwtComponentRendererImpl(editorPane));

	return printImage;
}
 

@Override
public JRPrintImage createImageFromComponentElement(JRComponentElement componentElement) throws JRException {
	HtmlComponent html = (HtmlComponent) componentElement.getComponent();
	
	JEditorPane editorPane = new JEditorPane();
	editorPane.setEditorKitForContentType("text/html", new SynchronousImageLoaderKit());
	editorPane.setContentType("text/html");
	
	String htmlContent = "";
	
	if (html.getHtmlContentExpression() != null) {
		htmlContent = JRExpressionUtil.getExpressionText(html.getHtmlContentExpression());
	}
	
	editorPane.setText(htmlContent);
	editorPane.setBorder(null);
	editorPane.setSize(editorPane.getPreferredSize());
	
	JRBasePrintImage printImage = new JRBasePrintImage(componentElement.getDefaultStyleProvider());
	printImage.setX(componentElement.getX());
	printImage.setY(componentElement.getY());
	printImage.setWidth(componentElement.getWidth());
	printImage.setHeight(componentElement.getHeight());
	printImage.setScaleImage(html.getScaleType());
	printImage.setHorizontalImageAlign(html.getHorizontalImageAlign());
	printImage.setVerticalImageAlign(html.getVerticalImageAlign());
	printImage.setStyle(componentElement.getStyle());
	printImage.setMode(componentElement.getModeValue());
	printImage.setBackcolor(componentElement.getBackcolor());
	printImage.setForecolor(componentElement.getForecolor());

	printImage.setRenderer(new AwtComponentRendererImpl(editorPane));
	
	return printImage;
}
 

private void addComponentsToPane() {
    editorPane = new JEditorPane("text/html",
            "<html><head><style>body {font-family:'Segoe UI'; font-size:12pt;}</style></head><body>\u4e2d</body></html>");

    if (CALL_GET_FONT_METRICS) {
        editorPane.getFontMetrics(new Font("Segoe UI", Font.PLAIN, 12));
    }

    editorPane.setLocation(0, 0);
    editorPane.setSize(200, 100);

    frame.add(editorPane);

    addWindowListener(this);
}
 

private Popup401() {
    textArea = new JTextArea("§1234567890-=\nqwertyuiop[]\nasdfghjkl;'\\\n`zxcvbnm,./\n");
    editorPane = new JEditorPane("text/html", "§1234567890-=\nqwertyuiop[]\nasdfghjkl;'\\\n`zxcvbnm,./\n");
    editorPane.setSize(300, 300);
    add(editorPane);
}
 

@Override
public JPanel getComponent(int width, int height) throws IOException {
	final JPanel container = new JPanel();
	container.setSize(width, height);
	container.setPreferredSize(container.getSize());

	final OverlayLayout overlay = new OverlayLayout(container);
	container.setLayout(overlay);

	labelField = new JEditorPane();
	labelField.setOpaque(false);
	labelField.setSize(640 - 50, 480 - 50);
	labelField.setPreferredSize(labelField.getSize());
	labelField.setMaximumSize(labelField.getSize());
	labelField.setContentType("text/html");

	// add a HTMLEditorKit to the editor pane
	final HTMLEditorKit kit = new HTMLEditorKit();
	labelField.setEditorKit(kit);

	final StyleSheet styleSheet = kit.getStyleSheet();
	styleSheet.addRule("body {color:#FF00FF; font-family:courier;}");
	styleSheet.addRule("h1 {font-size: 60pt}");
	styleSheet.addRule("h2 {font-size: 50pt }");

	final Document doc = kit.createDefaultDocument();
	labelField.setDocument(doc);

	// final GridBagConstraints gbc = new GridBagConstraints();
	// gbc.gridy = 1;
	// panel.add(labelField, gbc);
	container.add(labelField);
	// labelField.setAlignmentX(0.5f);
	// labelField.setAlignmentY(0.5f);

	final JPanel panel = super.getComponent(width, height);
	container.add(panel);

	vc.getDisplay().addVideoListener(this);

	isRunning = true;
	new Thread(this).start();

	return container;
}