java 字体设置

一个Java字体设置程序，包括大小，颜色，加粗，下划线，对齐，斜体的设置，很全!!! 收藏

Swing对JTextPane中字体颜色的设置

转自：http://www.blogjava.net/Swing/archive/2007/12/26/128965.html

 

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

 

import javax.swing.JButton;

import javax.swing.JEditorPane;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTextPane;

import javax.swing.UIManager;

import javax.swing.WindowConstants;

import javax.swing.text.AttributeSet;

import javax.swing.text.DefaultStyledDocument;

import javax.swing.text.Document;

import javax.swing.text.EditorKit;

import javax.swing.text.MutableAttributeSet;

import javax.swing.text.SimpleAttributeSet;

import javax.swing.text.StyleConstants;

import javax.swing.text.StyledDocument;

import javax.swing.text.StyledEditorKit;

 

public class NewJFrame extends javax.swing.JFrame implements ActionListener {

 private JPanel jp1;

 

 private JButton color;

 

 private JTextPane jep;

 

 private JScrollPane jsp;

 

 private JButton font;

 

 /**

  * Auto-generated main method to display this JFrame

  */

 public static void main(String[] args) {

  NewJFrame inst = new NewJFrame();

  inst.setVisible(true);

 }

 

 public NewJFrame() {

  super();

  initGUI();

 }

 

 private void initGUI() {

  try {

   BorderLayout thisLayout = new BorderLayout();

   getContentPane().setLayout(thisLayout);

   setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);

   {

    jp1 = new JPanel();

    getContentPane().add(jp1, BorderLayout.NORTH);

    {

     font = new JButton();

     font.addActionListener(this);

     jp1.add(font);

     font.setText("font");

    }

    {

     color = new JButton();

     jp1.add(color);

     color.addActionListener(this);

     color.setText("color");

    }

   }

   {

    jsp = new JScrollPane();

    getContentPane().add(jsp, BorderLayout.CENTER);

    {

     jep = new JTextPane();

     jsp.setViewportView(jep);

     jep.setDocument(new DefaultStyledDocument());

    }

   }

   pack();

   setSize(400, 300);

  } catch (Exception e) {

   e.printStackTrace();

  }

 }

 

 public static void setFontSize(JEditorPane editor, int size) {

  if (editor != null) {

   if ((size > 0) && (size < 512)) {

    MutableAttributeSet attr = new SimpleAttributeSet();

    StyleConstants.setFontSize(attr, size);

    setCharacterAttributes(editor, attr, false);

   } else {

    UIManager.getLookAndFeel().provideErrorFeedback(editor);

   }

  }

 }

 

 public static void setForeground(JEditorPane editor, Color fg) {

  if (editor != null) {

   if (fg != null) {

    MutableAttributeSet attr = new SimpleAttributeSet();

    StyleConstants.setForeground(attr, fg);

    setCharacterAttributes(editor, attr, false);

   } else {

    UIManager.getLookAndFeel().provideErrorFeedback(editor);

   }

  }

 }

 

 public static final void setCharacterAttributes(JEditorPane editor,

   AttributeSet attr, boolean replace) {

  int p0 = editor.getSelectionStart();

  int p1 = editor.getSelectionEnd();

  if (p0 != p1) {

   StyledDocument doc = getStyledDocument(editor);

   doc.setCharacterAttributes(p0, p1 - p0, attr, replace);

  }

  StyledEditorKit k = getStyledEditorKit(editor);

  MutableAttributeSet inputAttributes = k.getInputAttributes();

  if (replace) {

   inputAttributes.removeAttributes(inputAttributes);

  }

  inputAttributes.addAttributes(attr);

 }

 

 protected static final StyledDocument getStyledDocument(JEditorPane e) {

  Document d = e.getDocument();

  if (d instanceof StyledDocument) {

   return (StyledDocument) d;

  }

  throw new IllegalArgumentException("document must be StyledDocument");

 }

 

 protected static final StyledEditorKit getStyledEditorKit(JEditorPane e) {

  EditorKit k = e.getEditorKit();

  if (k instanceof StyledEditorKit) {

   return (StyledEditorKit) k;

  }

  throw new IllegalArgumentException("EditorKit must be StyledEditorKit");

 }

 

 public void actionPerformed(ActionEvent e) {

  Object obj = e.getSource();

  if (obj == font) {

   JEditorPane editor = jep;

   setFontSize(editor, 20);

  }

  if (obj == color) {

   JEditorPane editor = jep;

   setForeground(editor, Color.red);

  }

 }

 

}

其他操作如下：

1、对字体的操作

MutableAttributeSet attr = new SimpleAttributeSet();

    StyleConstants.setFontFamily(attr, family);

    setCharacterAttributes(editor, attr, false);

family为字体

2、对字体大小的操作

MutableAttributeSet attr = new SimpleAttributeSet();

    StyleConstants.setFontSize(attr, size);

    setCharacterAttributes(editor, attr, false);

size为字号

3、是否是粗体的操作

StyledEditorKit kit = getStyledEditorKit(editor);

   MutableAttributeSet attr = kit.getInputAttributes();

   boolean bold = (StyleConstants.isBold(attr)) ? false : true;

   SimpleAttributeSet sas = new SimpleAttributeSet();

   StyleConstants.setBold(sas, bold);

   setCharacterAttributes(editor, sas, false);

4、是否是斜体的操作

StyledEditorKit kit = getStyledEditorKit(editor);

   MutableAttributeSet attr = kit.getInputAttributes();

   boolean italic = (StyleConstants.isItalic(attr)) ? false : true;

   SimpleAttributeSet sas = new SimpleAttributeSet();

   StyleConstants.setItalic(sas, italic);

   setCharacterAttributes(editor, sas, false);

5、是否有下划线的操作

StyledEditorKit kit = getStyledEditorKit(editor);

   MutableAttributeSet attr = kit.getInputAttributes();

   boolean underline = (StyleConstants.isUnderline(attr)) ? false

     : true;

   SimpleAttributeSet sas = new SimpleAttributeSet();

   StyleConstants.setUnderline(sas, underline);

   setCharacterAttributes(editor, sas, false);

6、左中右对齐的处理

MutableAttributeSet attr = new SimpleAttributeSet();

   StyleConstants.setAlignment(attr, a);

   setParagraphAttributes(editor, attr, false);

public static final void setParagraphAttributes(JEditorPane editor,

   AttributeSet attr, boolean replace) {

  int p0 = editor.getSelectionStart();

  int p1 = editor.getSelectionEnd();

  StyledDocument doc = getStyledDocument(editor);

  doc.setParagraphAttributes(p0, p1 - p0, attr, replace);

 }

a:0：左，1：中，2：右

 

7、文本字体颜色的设置

MutableAttributeSet attr = new SimpleAttributeSet();

    StyleConstants.setForeground(attr, fg);

    setCharacterAttributes(editor, attr, false);

fg：为color

8、文本背景颜色的设置

MutableAttributeSet attr = new SimpleAttributeSet();

    StyleConstants.setBackground(attr, bg);

    setCharacterAttributes(editor, attr, false);

 

 

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