java彩色滚动条搜索结果

我将如何在Java中自定义滚动条，以便我可以进行类似于chrome的搜索，也就是说将结果显示为彩色条纹？

我不想要一个库，因为我更喜欢自己编写代码。 另外，我不想放弃我拥有的L＆F。 欢迎举例。

实际上它将是查看一个大文本文件或一个长jtable，并且有没有人有任何好的想法，我怎么能有一个高效的滚动条来查看这个？ …我应该有一个开始结束的双滚动条和一个滚动短距离的内部滚动条???

（对不起，这是一个双重问题，但它是彩色滚动条，将得到勾号）

感谢您提供所有可能的帮助和想法。

编辑：没有代码示例抱歉，因为我正试图在我的脑海中计划好这个……你会看到它将是一个带有快速搜索的长文本窗格。 用户需要加载此大文件并快速访问详细信息。 目前我正在为加载速度保持清晰。 其次，文本将是动态的，因此通过单击一个单词，它将在滚动条中放置条带，就像激活了搜索一样。 暂时让我们说它是一个带滚动条的简单文本区域。

Answer 1

import java.awt.*; import java.awt.event.*; import java.awt.geom.*; import java.util.regex.*; import javax.swing.*; import javax.swing.text.*; import javax.swing.plaf.metal.MetalScrollBarUI; public class ScrollBarSearchHighlighterTest { private static final Highlighter.HighlightPainter highlightPainter = new DefaultHighlighter.DefaultHighlightPainter(Color.YELLOW); private static final String pattern = "Swing"; private static final String initTxt = "Trail: Creating a GUI with JFC/Swing\n" + "Lesson: Learning Swing by Example\n" + "This lesson explains the concepts you need to\n" + " use Swing components in building a user interface.\n" + " First we examine the simplest Swing application you can write.\n" + " Then we present several progressively complicated examples of creating\n" + " user interfaces using components in the javax.swing package.\n" + " We cover several Swing components, such as buttons, labels, and text areas.\n" + " The handling of events is also discussed,\n" + " as are layout management and accessibility.\n" + " This lesson ends with a set of questions and exercises\n" + " so you can test yourself on what you've learned.\n" + "http://docs.oracle.com/javase/tutorial/uiswing/learn/index.html\n"; private final JTextArea textArea = new JTextArea(); private final JScrollPane scroll = new JScrollPane(textArea); private final JScrollBar scrollbar = new JScrollBar(JScrollBar.VERTICAL); public JComponent makeUI() { textArea.setEditable(false); textArea.setLineWrap(true); textArea.setText(initTxt+initTxt+initTxt); scrollbar.setUnitIncrement(10); scrollbar.setUI(new MetalScrollBarUI() { @Override protected void paintTrack( Graphics g, JComponent c, Rectangle trackBounds) { super.paintTrack(g, c, trackBounds); Rectangle rect = textArea.getBounds(); double sy = trackBounds.getHeight() / rect.getHeight(); AffineTransform at = AffineTransform.getScaleInstance(1.0, sy); Highlighter highlighter = textArea.getHighlighter(); g.setColor(Color.YELLOW); try{ for(Highlighter.Highlight hh: highlighter.getHighlights()) { Rectangle r = textArea.modelToView(hh.getStartOffset()); Rectangle s = at.createTransformedShape(r).getBounds(); int h = 2; //Math.max(2, s.height-2); g.fillRect(trackBounds.x+2, trackBounds.y+1+sy, trackBounds.width, h); } } catch(BadLocationException e) { e.printStackTrace(); } } }); scroll.setVerticalScrollBar(scrollbar); Box box = Box.createHorizontalBox(); box.add(Box.createHorizontalGlue()); box.add(new JButton(new AbstractAction("highlight") { @Override public void actionPerformed(ActionEvent e) { setHighlight(textArea, pattern); } })); box.add(Box.createHorizontalStrut(2)); box.add(new JButton(new AbstractAction("clear") { @Override public void actionPerformed(ActionEvent e) { textArea.getHighlighter().removeAllHighlights(); scrollbar.repaint(); } })); JPanel p = new JPanel(new BorderLayout()); p.add(scroll); p.add(box, BorderLayout.SOUTH); return p; } public void setHighlight(JTextComponent jtc, String pattern) { Highlighter highlighter = jtc.getHighlighter(); highlighter.removeAllHighlights(); Document doc = jtc.getDocument(); try{ String text = doc.getText(0, doc.getLength()); Matcher matcher = Pattern.compile(pattern).matcher(text); int pos = 0; while(matcher.find(pos)) { int start = matcher.start(); int end = matcher.end(); highlighter.addHighlight(start, end, highlightPainter); pos = end; } }catch(BadLocationException e) { e.printStackTrace(); } scroll.repaint(); } public void removeHighlights(JTextComponent jtc) { Highlighter hilite = jtc.getHighlighter(); Highlighter.Highlight[] hilites = hilite.getHighlights(); for(int i=0; i 

或者另一种选择是使用“MatteBorder + Icon + RowHeader”： JScrollBar搜索荧光笔