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POcropping text lines in a jtextpane-based jtable cell renderer
 

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  1. POcropping text lines in a jtextpane-based jtable cell renderer
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    <p>i'm using a JTextPane as a cell renderer in my table (so i can control color, font, size and links easily). the problem is that lines get wrapped when the cell's get too small to contain the full text.</p> <p>i know the number of expected text lines in advance (or i can just count), so i set the row's height accordingly.<br></p> <p>how do i get the lines to crop (visually! i.e. in the middle of a letter) at the cell end?</p> <p>thanks, asaf :-) <p> <strong>more info:</strong> i've tried two solutions i found on the net. one that involves <a href="http://java-sl.com/wrap.html" rel="nofollow noreferrer">setting my own EditroKit</a> . the other is listed below, and involves overriding of setSize().<br> alas, none worked...</p> <p>here is my renderer (apologies for messed up indentation...):</p> <pre><code>package textTable; import java.awt.BorderLayout; import java.awt.Component; import java.awt.Dimension; import java.awt.FontMetrics; import java.awt.Insets; import javax.swing.JPanel; import javax.swing.JTable; import javax.swing.JTextPane; import javax.swing.table.TableCellRenderer; import javax.swing.text.BadLocationException; import javax.swing.text.SimpleAttributeSet; import javax.swing.text.StyleConstants; import javax.swing.text.StyledDocument; public class LogRenderer extends JPanel implements TableCellRenderer { static class NoWrapTextPane extends JTextPane { public NoWrapTextPane () { super(); } @Override public boolean getScrollableTracksViewportWidth() { return false; } @Override public void setSize(Dimension d) { if(d.width &lt; getParent().getSize().width) { d.width = getParent().getSize().width; } super.setSize(d); } } private JTextPane textPane = new NoWrapTextPane();//JTextPane(); private StyledDocument doc = textPane.getStyledDocument(); private SimpleAttributeSet attr = new SimpleAttributeSet(); private FontMetrics fontMetrics; public LogRenderer() { textPane.setMargin(new Insets(0,0,0,0)); fontMetrics = textPane.getFontMetrics(getFont()); StyleConstants.setFontFamily(attr, "monospaced");//"Courier" setLayout(new BorderLayout()); add(textPane,BorderLayout.CENTER); } public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { String[] text; if (value != null &amp;&amp; value instanceof String[]) { text = (String[]) value; } else { text = null; } try { doc.remove(0, doc.getLength()); if (text != null) { int offset = 0; for (String line : text) { doc.insertString(offset, line+"\n", attr); offset += (line == null ? 0 : line.length()) +1; } int preferredHeight = fontMetrics.getHeight() * text.length; if (preferredHeight != table.getRowHeight(row)) { System.out.println("preferredHeight "+preferredHeight+" = fontMetrics.getHeight() "+fontMetrics.getHeight()+" + text.length "+text.length); table.setRowHeight(row, preferredHeight); } } } catch (BadLocationException e) { e.printStackTrace(); } // textPane.setToolTipText("hi"); return this; } } </code></pre>
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