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/*
* Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
package org.sufficientlysecure.keychain.util;
import org.sufficientlysecure.keychain.pgp.Progressable;
/**
* This is a simple class that wraps a Progressable, scaling the progress
* values into a specified range.
*/
public class ProgressScaler implements Progressable {
final Progressable mWrapped;
final int mFrom, mTo, mMax;
public ProgressScaler() {
mWrapped = null;
mFrom = mTo = mMax = 0;
}
public ProgressScaler(Progressable wrapped, int from, int to, int max) {
this.mWrapped = wrapped;
this.mFrom = from;
this.mTo = to;
this.mMax = max;
}
/**
* Set progress of ProgressDialog by sending message to handler on UI thread
*/
public void setProgress(String message, int progress, int max) {
if (mWrapped != null) {
mWrapped.setProgress(message, mFrom + progress * (mTo - mFrom) / max, mMax);
}
}
public void setProgress(int resourceId, int progress, int max) {
if (mWrapped != null) {
mWrapped.setProgress(resourceId, mFrom + progress * (mTo - mFrom) / max, mMax);
}
}
public void setProgress(int progress, int max) {
if (mWrapped != null) {
mWrapped.setProgress(mFrom + progress * (mTo - mFrom) / max, mMax);
}
}
@Override
public void setPreventCancel() {
if (mWrapped != null) {
mWrapped.setPreventCancel();
}
}
}
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