public void valueChanged(TreeSelectionEvent e) {
TreePath[] paths = e.getPaths();
boolean enabled = true;
for (TreePath treePath : paths) {
if (!e.isAddedPath(treePath)) {
continue;
}
DefaultMutableTreeNode node = (DefaultMutableTreeNode) treePath.getLastPathComponent();
Object userObject = node.getUserObject();
if (!(userObject instanceof FileNodeDescriptor)) {
enabled = false;
break;
}
FileElement descriptor = ((FileNodeDescriptor) userObject).getElement();
VirtualFile file = descriptor.getFile();
enabled = file != null && myChooserDescriptor.isFileSelectable(file);
}
setOKActionEnabled(enabled);
}
/**
* Returns list cell renderer component.
*
* @param list tree
* @param value cell value
* @param index cell index
* @param isSelected whether cell is selected or not
* @param cellHasFocus whether cell has focus or not
* @return cell renderer component
*/
@Override
public Component getListCellRendererComponent(
final JList list,
final Object value,
final int index,
final boolean isSelected,
final boolean cellHasFocus) {
super.getListCellRendererComponent(list, "", index, isSelected, cellHasFocus);
final FileElement element = (FileElement) value;
final File file = element.getFile();
// Proper margin
setMargin(isTilesView() ? tileCellMargin : iconCellMargin);
// Renderer icon
String imageSize = null;
if (iconLabel.isEnabled()) {
// Thumbnail loading
synchronized (thumbnailsLock) {
if (!element.isThumbnailQueued() && !element.isDisabledThumbnailQueued()) {
queueThumbnailLoad(element, false);
}
}
// Image thumbnail
final ImageIcon thumbnail = element.getEnabledThumbnail();
iconLabel.setIcon(thumbnail);
// Image description
if (thumbnail != null) {
imageSize = thumbnail.getDescription();
}
} else {
// Disabled thumbnail loading
synchronized (thumbnailsLock) {
if (!element.isDisabledThumbnailQueued()) {
queueThumbnailLoad(element, true);
}
}
// Image disabled thumbnail
iconLabel.setDisabledIcon(element.getDisabledThumbnail());
}
// Updating file description elements
if (fileList.getEditedCell() != index) {
// Settings description
final FileDescription fileDescription = FileUtils.getFileDescription(file, imageSize);
nameLabel.setText(fileDescription.getName());
// Updating tile view additional description
if (isTilesView()) {
descriptionLabel.setText(fileDescription.getDescription());
// Updating size label
if (fileDescription.getSize() != null) {
sizeLabel.setText(fileDescription.getSize());
} else {
sizeLabel.setText(null);
}
} else {
descriptionLabel.setText(null);
sizeLabel.setText(null);
}
} else {
nameLabel.setText(null);
descriptionLabel.setText(null);
sizeLabel.setText(null);
}
return this;
}