/**
* Update the progress bar of the currently downloaded file in main window. Only update if progess
* has at least increased by one percent of the total file size of the downloaded file.
*
* @param downloadedBytes The current amount of downloaded bytes
* @param lastProgBarUpdate The byte count at the last progress bar update
* @param file The download file
* @return The byte count at the last progress bar update
*/
private int updateProgressBar(int downloadedBytes, int lastProgBarUpdate, DownloadFile file) {
int totalSize = (int) file.getTotalFileSize();
// only update progess bar if progess has at least increased by one percent
int diff = downloadedBytes - lastProgBarUpdate;
int onePercent = (int) totalSize / 100;
if (diff >= onePercent) {
final String filename = file.getFilename();
final int db = downloadedBytes;
SwingUtilities.invokeLater(
new Runnable() {
public void run() {
mainApp.updateDownloadQueue(filename, db);
}
});
return downloadedBytes; // prog bar updated, so return the new byte count
}
return lastProgBarUpdate; // no update, so return the previous byte count
}
