/**
* Returns the URL of the resource with the specified name. This implementation first tries to use
* the parent class loader to find the resource; if this fails then {@link #findResource(String)}
* is called to find the requested resource.
*
* @param resName the name of the resource to find.
* @return the {@code URL} object for the requested resource or {@code null} if the resource can
* not be found
* @see Class#getResource
*/
public URL getResource(String resName) {
URL resource = parent.getResource(resName);
if (resource == null) {
resource = findResource(resName);
}
return resource;
}
/** create and format a new button */
private JButton createButton(final String toolTip, final String image, final String title) {
JButton newB = null;
// first try to get the URL of the image
final java.lang.ClassLoader loader = getClass().getClassLoader();
if (loader != null) {
final java.net.URL imLoc = loader.getResource(image);
if (imLoc != null) {
final ImageIcon im = new ImageIcon(imLoc);
newB = new JButton(im);
}
}
// just catch any problems
if (newB == null) newB = new JButton(title);
newB.setMargin(new Insets(0, 0, 0, 0));
newB.setToolTipText(toolTip);
return newB;
}
/**
* Returns the URL of the resource specified by {@code resName}. The mapping between the resource
* name and the URL is managed by the class' class loader.
*
* @param resName the name of the resource.
* @return the requested resource's {@code URL} object or {@code null} if the resource can not be
* found.
* @see ClassLoader
*/
public URL getResource(String resName) {
// Get absolute resource name, but without the leading slash
if (resName.startsWith("/")) {
resName = resName.substring(1);
} else {
String pkg = getName();
int dot = pkg.lastIndexOf('.');
if (dot != -1) {
pkg = pkg.substring(0, dot).replace('.', '/');
} else {
pkg = "";
}
resName = pkg + "/" + resName;
}
// Delegate to proper class loader
ClassLoader loader = getClassLoader();
if (loader != null) {
return loader.getResource(resName);
} else {
return ClassLoader.getSystemResource(resName);
}
}
public URL getResource(String resName) {
ClassLoader loader = type.getClassLoader();
if (loader == BootstrapClassLoader.getBootstrapClassLoader())
return ClassLoader.getSystemResource(toResourceName(resName));
else return loader.getResource(toResourceName(resName));
}