Floating point values in SWT Spinner
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Spinner;
/*
* Floating point values in Spinner
*
* For a list of all SWT example snippets see
* http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
*/
public class Snippet190 {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setText("Spinner with float values");
shell.setLayout(new GridLayout());
final Spinner spinner = new Spinner(shell, SWT.NONE);
// allow 3 decimal places
spinner.setDigits(3);
// set the minimum value to 0.001
spinner.setMinimum(1);
// set the maximum value to 20
spinner.setMaximum(20000);
// set the increment value to 0.010
spinner.setIncrement(10);
// set the seletion to 3.456
spinner.setSelection(3456);
spinner.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
int selection = spinner.getSelection();
int digits = spinner.getDigits();
System.out.println("Selection is "
+ (selection / Math.pow(10, digits)));
}
});
shell.setSize(200, 200);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}
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