/*
* 21.04.2004 Original verion. davagin@udm.ru.
*-----------------------------------------------------------------------
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*----------------------------------------------------------------------
*/
package davaguine.jmac.tools;
/**
* Author: Dmitry Vaguine
* Date: 04.03.2004
* Time: 14:51:31
*/
public class ProgressHelper {
public ProgressHelper(int nTotalSteps, ProgressCallback ProgressCallback) {
m_CallbackFunction = ProgressCallback;
m_nTotalSteps = nTotalSteps;
m_nCurrentStep = 0;
m_nLastCallbackFiredPercentageDone = 0;
UpdateProgress(0);
}
public void UpdateStatus(String msg) {
m_CallbackFunction.updateStatus(msg);
}
public void UpdateProgress() {
UpdateProgress(-1, false);
}
public void UpdateProgress(int nCurrentStep) {
UpdateProgress(nCurrentStep, false);
}
public void UpdateProgress(int nCurrentStep, boolean bForceUpdate) {
//update the step
if (nCurrentStep == -1)
m_nCurrentStep++;
else
m_nCurrentStep = nCurrentStep;
//figure the percentage done
float fPercentageDone = ((float) (m_nCurrentStep)) / ((float) (Math.max(m_nTotalSteps, 1)));
int nPercentageDone = (int) (fPercentageDone * 1000 * 100);
if (nPercentageDone > 100000) nPercentageDone = 100000;
//fire the callback
if (m_CallbackFunction != null) {
m_CallbackFunction.pPercentageDone = nPercentageDone;
if (bForceUpdate || (nPercentageDone - m_nLastCallbackFiredPercentageDone) >= 1000) {
m_CallbackFunction.callback(nPercentageDone);
m_nLastCallbackFiredPercentageDone = nPercentageDone;
}
}
}
public void UpdateProgressComplete() {
UpdateProgress(m_nTotalSteps, true);
}
public boolean isKillFlag() {
return m_CallbackFunction != null ? m_CallbackFunction.killFlag : false;
}
private ProgressCallback m_CallbackFunction = null;
private int m_nTotalSteps;
private int m_nCurrentStep;
private int m_nLastCallbackFiredPercentageDone;
}