我有一个带有格式化文本的JtextPane。我需要复制完整的样式和属性 从这个文本转移到另一个JtextPane。是否有示例或代码段 看看它是如何工作的?
好的,这是我找到的代码,我稍微改了一下:import java.awt.*;
import javax.swing.*;
import javax.swing.text.*;
public class Main {
private JTextPane textPane1;
private JTextPane textPane2;
private Document doc1;
private Document doc2;
private JFrame frame1;
private JFrame frame2;
private MutableAttributeSet black;
private MutableAttributeSet red;
private AttributeSet attribute;
public Main() {
textPane1 = new JTextPane();
black = new SimpleAttributeSet();
red = new SimpleAttributeSet();
StyleConstants.setForeground(black, Color.black);
StyleConstants.setForeground(red, Color.red);
textPane1.setEditorKit(new StyledEditorKit());
doc1 = textPane1.getDocument();
append1("This is a Test!\n");
//set color = red
attribute = red;
append1("Hello world! Hello Stackoverflow\n");
//set color = black
attribute = black;
append1("the text is black again\n");
StyledDocument styledDocument = textPane1.getStyledDocument();
textPane2 = new JTextPane();
textPane2.setEditorKit(new StyledEditorKit());
doc2 = textPane2.getDocument();
String text = textPane1.getText();
append2(text);
//transfer format data of text in frame1 to frame2
int docLength = doc1.getLength();
Element element;
AttributeSet attribSet;
for(int i=0;i<docLength;i++) {
element = styledDocument.getCharacterElement(i);
attribSet = element.getAttributes();
StyleConstants.setForeground(red, Color.red);
}
createFrames();
}
private void append1(String text){
try {
doc1.insertString(doc1.getLength(), text, attribute);
} catch (BadLocationException ex) {
ex.printStackTrace();
}
}
private void append2(String text) {
try {
doc2.insertString(doc2.getLength(), text, attribute);
} catch (BadLocationException ex) {
ex.printStackTrace();
}
}
private void createFrames() {
frame1 = new JFrame("frame 1");
frame1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame1.setSize(400, 300);
frame1.setLocationRelativeTo(null);
frame1.getContentPane().add(new JScrollPane(textPane1), BorderLayout.CENTER);
frame1.setVisible(true);
frame2 = new JFrame("frame 2");
frame2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame2.setSize(400, 300);
frame2.setLocation(300,0);
frame2.getContentPane().add(new JScrollPane(textPane2), BorderLayout.CENTER);
frame2.setVisible(true);
}
public static void main(String args[]) {
new Main();
}
}
我还想将格式样式和属性传输到第二帧。
答案 0 :(得分:1)
我已经解决了。
import java.awt。*;
import javax.swing.*;
import javax.swing.text.*;
public class Main {
private JTextPane textPane1;
private JTextPane textPane2;
private Document doc1;
private Document doc2;
private JFrame frame1;
private JFrame frame2;
private MutableAttributeSet black;
private MutableAttributeSet red;
private AttributeSet attribute;
public Main() throws BadLocationException {
textPane1 = new JTextPane();
black = new SimpleAttributeSet();
red = new SimpleAttributeSet();
StyleConstants.setForeground(black, Color.black);
StyleConstants.setForeground(red, Color.red);
textPane1.setEditorKit(new StyledEditorKit());
doc1 = textPane1.getDocument();
append1("This is a Test!\n");
//set color = red
attribute = red;
append1("Hello world! Hello Stackoverflow\n");
//set color = black
attribute = black;
append1("the text is black again\n");
//IMPORTANT PART: attribute of each character from the styled text will
//be transfered to the second textpanel
StyledDocument styledDocument = textPane1.getStyledDocument();
Element element;
textPane2 = new JTextPane();
textPane2.setEditorKit(new StyledEditorKit());
doc2 = textPane2.getDocument();
for(int i=0; i<styledDocument.getLength();i++) {
element = styledDocument.getCharacterElement(i);
AttributeSet attributeNew = element.getAttributes();
System.out.println(i);
append2(styledDocument.getText(i, 1), attributeNew);
}
createFrames();
}
private void append1(String text){
try {
doc1.insertString(doc1.getLength(), text, attribute);
} catch (BadLocationException ex) {
ex.printStackTrace();
}
}
private void append2(String text, AttributeSet attributeNew) {
try {
doc2.insertString(doc2.getLength(), text, attributeNew);
} catch (BadLocationException ex) {
ex.printStackTrace();
}
}
private void createFrames() {
frame1 = new JFrame("frame 1");
frame1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame1.setSize(400, 300);
frame1.setLocationRelativeTo(null);
frame1.getContentPane().add(new JScrollPane(textPane1), BorderLayout.CENTER);
frame1.setVisible(true);
frame2 = new JFrame("frame 2");
frame2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame2.setSize(400, 300);
frame2.setLocation(300,0);
frame2.getContentPane().add(new JScrollPane(textPane2), BorderLayout.CENTER);
frame2.setVisible(true);
}
public static void main(String args[]) throws BadLocationException {
new Main();
}
}
答案 1 :(得分:0)
我想对该解决方案进行一些改进。可以使用getParagraphElement(int pos)而不是每个单个字符来捕获具有相同样式的文本。第一个元素从pos 0开始,然后是第二个元素:element.getEndOffset()+1。
但是我们必须遍历子元素树以获取所有字符属性。
package demo;
import java.awt.*;
import javax.swing.*;
import javax.swing.text.*;
public class TextPaneDemo {
private JTextPane textPane1;
private JTextPane textPane2;
private StyledDocument doc1;
private StyledDocument doc2;
Private JFrame frame1;
private JFrame frame2;
public TextPaneDemo () {
MutableAttributeSet black = new SimpleAttributeSet();
StyleConstants.setForeground(black, Color.black);
MutableAttributeSet red = new SimpleAttributeSet();
StyleConstants.setForeground(red, Color.red);
MutableAttributeSet blue = new SimpleAttributeSet();
StyleConstants.setForeground(blue, Color.blue);
StyleConstants.setBold(blue, true);
textPane1 = new JTextPane();
textPane1.setEditorKit(new StyledEditorKit());
doc1 = textPane1.getStyledDocument();
textPane2 = new JTextPane();
textPane2.setEditorKit(new StyledEditorKit());
doc2 = textPane2.getStyledDocument();
createFrames();
append(doc1, black, "This is a Test!\n");
append(doc1, red, "Hello world! Hello Stackoverflow\n");
append(doc1, blue, "Hello ");
append(doc1, red, "Stackoverflow\n");
append(doc1, black, "the text is black again\n");
copyDoc (doc1, doc1.getParagraphElement(0), doc2);
}
private static void append(StyledDocument doc, AttributeSet style, String text) {
try {
doc.insertString(doc.getLength(), text, style);
} catch (BadLocationException ex) {
ex.printStackTrace();
}
}
private static int copyDoc(StyledDocument doc1, Element elem, StyledDocument doc2) {
int pos = elem.getStartOffset();
while( pos < doc1.getLength()) {
Element element = doc1.getParagraphElement(pos);
pos = copyElem(doc1, element, doc2);
}
return pos;
}
private static int copyElem(StyledDocument doc1, Element elem, StyledDocument doc2) {
int pos = elem.getStartOffset();
if (elem.getElementCount() <= 1) {
int length = elem.getEndOffset() - elem.getStartOffset();
AttributeSet attribSet = elem.getElementCount() == 0 ?
elem.getAttributes() :
elem.getElement(0).getAttributes();
try {
String text = doc1.getText(elem.getStartOffset(), length);
append(doc2, attribSet, text);
} catch(BadLocationException e) { }
pos = elem.getEndOffset();
} else {
for (int sub = 0; sub < elem.getElementCount(); sub++) {
Element sElem = elem.getElement(sub);
pos = copyElem(doc1, sElem, doc2);
}
pos = elem.getEndOffset();
}
return pos;
}
private void createFrames() {
frame1 = new JFrame("frame 1");
frame1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame1.setSize(400, 300);
frame1.setLocationRelativeTo(null);
frame1.getContentPane().add(new JScrollPane(textPane1), BorderLayout.CENTER);
frame1.setVisible(true);
frame2 = new JFrame("frame 2");
frame2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame2.setSize(400, 300);
frame2.setLocation(frame1.getLocation().x + frame1.getWidth(), frame1.getLocation().y);
frame2.getContentPane().add(new JScrollPane(textPane2), BorderLayout.CENTER);
frame2.setVisible(true);
}
public static void main(String args[]) {
new TextPaneDemo();
}
}