package com.vividsolutions.jtstest.testbuilder.ui;
import java.awt.Component;
import java.awt.SystemColor;
import java.awt.Toolkit;
import java.util.Collection;
import java.awt.datatransfer.*;
import java.io.File;
import javax.swing.JComboBox;
import javax.swing.JFileChooser;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
import javax.swing.filechooser.FileFilter;
import com.vividsolutions.jts.geom.*;
import com.vividsolutions.jtstest.testbuilder.model.GeometryTransferable;
import com.vividsolutions.jtstest.util.StringUtil;
public class SwingUtil {
public static FileFilter XML_FILE_FILTER = createFileFilter("JTS Test XML File (*.xml)", ".xml");
public static FileFilter JAVA_FILE_FILTER = createFileFilter("Java File (*.java)", ".java");
public static FileFilter PNG_FILE_FILTER = createFileFilter("PNG File (*.png)", ".png");
/**
*
* Example usage:
* <pre>
* SwingUtil.createFileFilter("JEQL script (*.jql)", "jql")
* </pre>
* @param description
* @param extension
* @return
*/
public static FileFilter createFileFilter(final String description, String extension)
{
final String dotExt = extension.startsWith(".") ? extension : "." + extension;
FileFilter ff = new FileFilter() {
public String getDescription() {
return description;
}
public boolean accept(File f) {
return f.isDirectory() || f.toString().toLowerCase().endsWith(dotExt);
}
};
return ff;
}
/**
*
* @param comp
* @param fileChooser
* @return filename chosen
* @return null if choose was cancelled for some reason
*/
public static String chooseFilenameWithConfirm(Component comp, JFileChooser fileChooser) {
try {
if (JFileChooser.APPROVE_OPTION == fileChooser.showSaveDialog(comp)) {
File file = fileChooser.getSelectedFile();
if (! SwingUtil.confirmOverwrite(comp, file)) return null;
String fullFileName = fileChooser.getSelectedFile().toString();
return fullFileName;
}
}
catch (Exception x) {
SwingUtil.reportException(comp, x);
}
return null;
}
public static boolean confirmOverwrite(Component comp, File file)
{
if (file.exists()) {
int decision = JOptionPane.showConfirmDialog(comp, file.getName()
+ " exists. Overwrite?", "Confirmation", JOptionPane.YES_NO_OPTION,
JOptionPane.WARNING_MESSAGE);
if (decision == JOptionPane.NO_OPTION) {
return false;
}
}
return true;
}
public static void setEnabledWithBackground(Component comp, boolean isEnabled)
{
comp.setEnabled(isEnabled);
if (isEnabled)
comp.setBackground(SystemColor.text);
else
comp.setBackground(SystemColor.control);
}
public static Integer getInteger(JTextField txt, Integer defaultVal) {
String str = txt.getText();
if (str.trim().length() <= 0)
return defaultVal;
int val = 0;
try {
val = Integer.parseInt(str);
} catch (NumberFormatException ex) {
}
return new Integer(val);
}
public static Double getDouble(JTextField txt, Double defaultVal) {
String str = txt.getText();
if (str.trim().length() <= 0)
return defaultVal;
double val = 0;
try {
val = Double.parseDouble(str);
} catch (NumberFormatException ex) {
}
return new Double(val);
}
public static Object getSelectedValue(JComboBox cb, Object[] val)
{
int selIndex = cb.getSelectedIndex();
if (selIndex == -1)
return null;
return val[selIndex];
}
public static void copyToClipboard(Object o, boolean isFormatted)
{
if (o instanceof Geometry) {
Toolkit.getDefaultToolkit().getSystemClipboard().setContents(
new GeometryTransferable((Geometry) o, isFormatted), null);
}
else
// transfer as string
Toolkit.getDefaultToolkit().getSystemClipboard().setContents(
new StringSelection(o.toString()), null);
}
public static Object getFromClipboard() {
Transferable transferable = getContents(Toolkit.getDefaultToolkit()
.getSystemClipboard());
try {
if (transferable.isDataFlavorSupported(GeometryTransferable.GEOMETRY_FLAVOR)) {
return transferable.getTransferData(GeometryTransferable.GEOMETRY_FLAVOR);
}
// attempt to read as string
return transferable.getTransferData(DataFlavor.stringFlavor);
}
catch (Exception ex) {
// eat exception, since there isn't anything we can do
}
return null;
}
public static Transferable getContents(Clipboard clipboard) {
try {
return clipboard.getContents(null);
} catch (Throwable t) {
return null;
}
}
public static void reportException(Component c, Exception e) {
JOptionPane.showMessageDialog(c, StringUtil.wrap(e.toString(), 80), "Exception",
JOptionPane.ERROR_MESSAGE);
e.printStackTrace(System.out);
}
}