/** Adds a new asset to the list. This updates the UI as necessary */
private void addDownloadingAsset(final Asset asset) {
// Adds a downloading asset to the list using a swing worker for thread
// safeness
final DownloadingAsset da = new DownloadingAsset();
da.asset = asset;
da.readBytes = 0;
da.percentage = 0;
final String assetURIString = asset.getAssetURI().toExternalForm();
downloadingAssetMap.put(assetURIString, da);
SwingUtilities.invokeLater(
new Runnable() {
public void run() {
// set up the indicator in the AWT event thread
da.indicator = new AssetIndicator();
da.indicator.setAssetProgressValue(0);
da.indicator.setAssetLabel(assetURIString);
listModel.addElementToTail(da.indicator);
}
});
updateCombined();
}
public void downloadProgress(Asset asset, int readBytes, int percentage) {
// Check to see if the asset is already in the list, otherwise
// add it. We need to synchronized according to the asset to make
// sure we do not add it twice
synchronized (this) {
if (downloadingAssetMap.containsKey(asset.getAssetURI().toExternalForm()) == false) {
addDownloadingAsset(asset);
} else {
updateDownloadingAsset(asset, readBytes, percentage);
}
}
}
/** Removes a downloading asset from the list and updates the UI as necessary. */
private void removeDownloadingAsset(Asset asset) {
// Removes a downloading asset from the list using a swing worker for
// thread safeness
final DownloadingAsset da = downloadingAssetMap.remove(asset.getAssetURI().toExternalForm());
new Timer(
750,
new ActionListener() {
public void actionPerformed(ActionEvent e) {
listModel.removeElement(da.indicator);
((Timer) e.getSource()).stop();
}
})
.start();
updateCombined();
}