textlayout in this case is getting outlines from the characters and I seem
to recall that it has a problem doing this with some of the fonts on
Taiwanese Windows 98. You may want to try alternate fonts.
I don't mean install new ones, I mean enumerate all the fonts using
GraphicsEnvironment.getAvailableFontFamilyNames() and try each of the
ones that support the characters you need. Some may appear better than
the one you are getting now.
-phil.
> Date: Wed, 19 Sep 2001 00:26:40 +0800
> From: "Jason T. S. Chow" <[EMAIL PROTECTED]>
> Subject: [JAVA2D] Printing Chinese characters
> To: [EMAIL PROTECTED]
>
> Hello all,
>
> I have been wriiten a program that prints styled Chinese characters,
> using TextLayout class. The strokes are incorrect, some shorter, some longer.
> The TextLayout firstly layout the text and attributes with specified width
> and height (in case word wrapping is needed), then when printing , the
Graphics
> object pass into the textLayout.draw method to print the text. I found that
> there is no problem when rendering on screen, and also print using drawString
> method. Is anyone know how to solve this problem? thanks in advance. Here is
> the standalone testing program. I am using Window 98 Taiwan Edition,
> JDK 1.3.1 international, and I have set locale to TW (Taiwan).
>
> Jason
>
> import java.text.*;
> import java.util.*;
> import java.awt.*;
> import java.awt.font.*;
> import java.awt.event.*;
> import java.awt.print.*;
> import java.awt.image.*;
> import javax.swing.*;
> import javax.swing.event.*;
> import javax.swing.text.*;
>
> public class Test extends JFrame {
> public static void main(String[] args) {
> Locale.setDefault(Locale.CHINESE);
> Test test = new Test();
> test.setVisible(true);
> }
>
> PrinterJob job;
> PageFormat pageFormat;
>
> DrawingPanel drawingPanel = new DrawingPanel();
> JPanel buttonPanel = new JPanel();
> JButton printButton = new JButton("Print");
>
> Test() {
> super("Test");
>
> setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
>
> drawingPanel.setPreferredSize(new Dimension(500, 400));
> getContentPane().add(drawingPanel, BorderLayout.CENTER);
>
> printButton.addActionListener(new ActionListener() {
> public void actionPerformed(ActionEvent ae) {
> job = PrinterJob.getPrinterJob();
> pageFormat = job.defaultPage();
>
> job.setPrintable(drawingPanel, pageFormat);
> job.setCopies(1);
>
> if (job.printDialog()) {
> try {
> job.print();
> }
> catch (Exception e) {
> System.out.println("FilePrint : " + e);
> }
> }
> }
> });
> buttonPanel.add(printButton);
> getContentPane().add(buttonPanel, BorderLayout.SOUTH);
>
> pack();
> }
> }
>
> class DrawingPanel extends JPanel implements Printable {
> static final String chineseText =
"\ufe51\ufe50\ufe55\ufe54\ufe56\ufe57\u300c\u300d\u3002\u3010\u3011\u3014\u3015\
u4e0d\u662f\u516c\u6709\u7684; \u4e0d\u80fd\u88ab\u5916\u90e8\u5305";
>
> DefaultStyledDocument document = new DefaultStyledDocument();
> String text = chineseText;
> Vector textVector;
> Vector attrStrVector;
> int x = 0;
> int y = 0;
> int width = 400;
> int height = 400;
> int lineSpacing = 5;
> Color textColor = Color.black;
>
> DrawingPanel() {
> super(false);
> try {
> SimpleAttributeSet attrSet1 = new SimpleAttributeSet();
> document.insertString(0, chineseText, attrSet1);
> }
> catch (BadLocationException ble) {
> }
> }
>
> public void draw(Graphics2D g,int x,int y) {
> Vector cache = layout(g);
> textDraw(g, cache, x, y);
> }
>
> private void textDraw(Graphics2D g2d,Vector cache,int offsetX,int offsetY) {
> int accHeight = 0;
>
> for (int i=0; i < cache.size(); i++) {
> TextLayout textLayout = (TextLayout)cache.elementAt(i);
> accHeight += textLayout.getAscent();
> g2d.setColor(textColor);
> textLayout.draw(g2d, offsetX + x + 1,
> offsetY + y + 1 + accHeight);
> accHeight += (textLayout.getDescent() + (textLayout.getLeading() *
lineSpacing));
> }
>
> textVector.clear();
> attrStrVector.clear();
> }
>
> public void paint(Graphics _g) {
> Graphics2D g = (Graphics2D) _g;
> g.setColor(Color.white);
> g.fillRect(0, 0, getWidth(), getHeight());
>
> draw(g, 10, 10);
> g.dispose();
> }
>
> public int print(Graphics _g, PageFormat pageFormat, int pageIndex) throws
PrinterException {
> if (pageIndex >= 1) {
> _g.dispose();
> return Printable.NO_SUCH_PAGE;
> }
>
> RepaintManager.currentManager(this).setDoubleBufferingEnabled(false);
>
> Graphics2D g = (Graphics2D) _g;
> g.setColor(Color.white);
> g.fillRect(0,
> 0,
> (int)pageFormat.getWidth(),
> (int)pageFormat.getHeight());
>
> int newOffsetX = 0;
> int newOffsetY = (int)(pageFormat.getImageableHeight() * pageIndex);
>
> g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
> RenderingHints.VALUE_ANTIALIAS_ON);
> g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
> RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
>
> g.setClip((int) pageFormat.getImageableX(),
> (int) pageFormat.getImageableY(),
> (int) (pageFormat.getImageableWidth()),
> (int) (pageFormat.getImageableHeight()));
> draw(g,
> (int)(x - newOffsetX + pageFormat.getImageableX()),
> (int)(y - newOffsetY + pageFormat.getImageableY()));
> RepaintManager.currentManager(this).setDoubleBufferingEnabled(true);
> g.dispose();
> return Printable.PAGE_EXISTS;
> }
>
> private Vector layout(Graphics2D g) {
> Vector cache = new Vector();
> float accHeight = 0;
>
> TextFormatting formatting = new TextFormatting(document, text);
> textVector = formatting.getTextVector();
> attrStrVector = formatting.getAttrStrVector();
>
> for (int j = 0; j < attrStrVector.size(); j++) {
> String text = (String)textVector.elementAt(j);
> if (text.length() == 0) {
> AttributedString spaceAs = new AttributedString(" ");
> AttributedCharacterIterator spaceAci = spaceAs.getIterator();
> FontRenderContext spaceFrc = g.getFontRenderContext();
> TextLayout spaceTl = new TextLayout(spaceAci,spaceFrc);
>
> float spaceHeight = spaceTl.getAscent() + spaceTl.getDescent() +
spaceTl.getLeading();
> accHeight += spaceHeight;
> cache.addElement(spaceTl);
>
> continue;
> }
>
> AttributedString as = (AttributedString)attrStrVector.elementAt(j);
>
> FontRenderContext frc = g.getFontRenderContext();
> AttributedCharacterIterator aci = as.getIterator();
> LineBreakMeasurer lbm = new LineBreakMeasurer(aci,frc);
>
> lbm.setPosition(0);
> int i = 0;
> while (true) {
> TextLayout textLayout = lbm.nextLayout(width - 2);
> if (textLayout == null)
> break;
> accHeight += (textLayout.getAscent() + textLayout.getDescent());
> if (accHeight > height - 2)
> break;
>
> cache.addElement(textLayout);
> accHeight += (textLayout.getLeading() * lineSpacing);
> }
> }
>
> return cache;
> }
> }
>
> class TextFormatting {
> DefaultStyledDocument document;
> String text;
>
> Vector textVector = new Vector();
> Vector attrStrVector = new Vector();
>
> TextFormatting(DefaultStyledDocument document, String text) {
> this.document = document;
> this.text = text;
>
> format();
> }
>
> private void format() {
> boolean quit = false;
> int index = 0, increment = 1;
> int nextIndex;
> int textIndex = 0;
> String subText;
> if (text.indexOf("\r\n") != -1)
> increment = 2;
>
> while (!quit) {
> if (increment == 2)
> nextIndex = text.indexOf("\r\n",index);
> else
> nextIndex = text.indexOf("\n",index);
>
> if (nextIndex == -1) {
> subText = text.substring(index);
> quit = true;
> }
> else {
> subText = text.substring(index,nextIndex);
> }
> textVector.addElement(subText);
>
> AttributedString as = new AttributedString(subText);
> for (int i = 0; i < subText.length(); i++) {
> Element ele = document.getCharacterElement(textIndex++);
> AttributeSet attrSet = ele.getAttributes();
> Font f = document.getFont(attrSet);
> as.addAttribute(TextAttribute.FONT, f, i, i + 1);
>
> if (StyleConstants.isUnderline(attrSet)) {
> as.addAttribute(TextAttribute.UNDERLINE,
> TextAttribute.UNDERLINE_ON,
> i,
> i + 1);
> }
> }
> attrStrVector.addElement(as);
>
> index = nextIndex + increment;
> textIndex++;
> }
> }
>
> public Vector getTextVector() {
> return this.textVector;
> }
>
> public Vector getAttrStrVector() {
> return this.attrStrVector;
> }
> }
>
> ----------------------------------------------
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