Provide Data Tip For JTable Columns

Provide Data Tip For JTable Columns

Cell data in a table may exceed the width of its column. It is a good, user-friendly, idea to have ToolTips appear in a cell showing the entire cell data as the user brings the mouse over the cell. This can easily be done using JTable and a few lines of code. Here’s how:

 public class TippedTable extends JTable { public TippedTable() { this(null, null, null); } public TippedTable(TableModel tm) { this(tm, null, null); } public TippedTable(TableModel tm, TableColumnModel tcm) { this(tm, tcm, null); } public TippedTable(TableModel tm, TableColumnModel tcm, ListSelectionModel lsm) { super(tm,tcm,lsm); } public TippedTable(int numRows, int numColumns) { this(new DefaultTableModel(numRows, numColumns)); } public TippedTable(final Vector rowData, final Vector columnNames) { super( rowData, columnNames ); } public TippedTable(final Object[][] rowData, final Object[] columnNames) { super( rowData, columnNames ); } public String getToolTipText(MouseEvent event) { int row = rowAtPoint(event.getPoint()); int col = columnAtPoint(event.getPoint()); Object o = getValueAt(row,col); if( o == null ) return null; if( o.toString().equals("") ) return null; return o.toString(); } public Point getToolTipLocation(MouseEvent event) { int row = rowAtPoint( event.getPoint() ); int col = columnAtPoint( event.getPoint() ); Object o = getValueAt(row,col); if( o == null ) return null; if( o.toString().equals("") ) return null; Point pt = getCellRect(row, col, true).getLocation(); pt.translate(-1,-2); return pt; } } 

Let’s use our little class, in the method that launches the frame to hold the TippedTable:

 JFrame frame = new JFrame("Table Example"); Object[][] rowData = new Object[1][3]; rowData[0][0]="very long data to be tipped here"; rowData[0][1]="If that was not tip enough try this"; rowData[0][2]="This is the last row of this tip, take care and good night"; Object[] columnNames = new Object[3]; for(int i=0; i<3; i++) { columnNames[i]="Column "+i; } TippedTable tTable = new TippedTable(rowData,columnNames); JScrollPane jsp = new JScrollPane(tTable); frame.getContentPane().add(jsp); frame.pack();;

There you have it: a ToolTip on a Table Cell with data.

Share the Post:
XDR solutions

The Benefits of Using XDR Solutions

Cybercriminals constantly adapt their strategies, developing newer, more powerful, and intelligent ways to attack your network. Since security professionals must innovate as well, more conventional endpoint detection solutions have evolved

AI is revolutionizing fraud detection

How AI is Revolutionizing Fraud Detection

Artificial intelligence – commonly known as AI – means a form of technology with multiple uses. As a result, it has become extremely valuable to a number of businesses across

AI innovation

Companies Leading AI Innovation in 2023

Artificial intelligence (AI) has been transforming industries and revolutionizing business operations. AI’s potential to enhance efficiency and productivity has become crucial to many businesses. As we move into 2023, several

data fivetran pricing

Fivetran Pricing Explained

One of the biggest trends of the 21st century is the massive surge in analytics. Analytics is the process of utilizing data to drive future decision-making. With so much of

kubernetes logging

Kubernetes Logging: What You Need to Know

Kubernetes from Google is one of the most popular open-source and free container management solutions made to make managing and deploying applications easier. It has a solid architecture that makes

ransomware cyber attack

Why Is Ransomware Such a Major Threat?

One of the most significant cyber threats faced by modern organizations is a ransomware attack. Ransomware attacks have grown in both sophistication and frequency over the past few years, forcing

data dictionary

Tools You Need to Make a Data Dictionary

Data dictionaries are crucial for organizations of all sizes that deal with large amounts of data. they are centralized repositories of all the data in organizations, including metadata such as