+/*
+ VARNA is a tool for the automated drawing, visualization and annotation of the secondary structure of RNA, designed as a companion software for web servers and databases.
+ Copyright (C) 2008 Kevin Darty, Alain Denise and Yann Ponty.
+ electronic mail : Yann.Ponty@lri.fr
+ paper mail : LRI, bat 490 Université Paris-Sud 91405 Orsay Cedex France
+
+ This file is part of VARNA version 3.1.
+ VARNA version 3.1 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.
+
+ VARNA version 3.1 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 VARNA version 3.1.
+ If not, see http://www.gnu.org/licenses.
+ */
+package fr.orsay.lri.varna.controlers;
+
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+import javax.swing.Timer;
+
+import fr.orsay.lri.varna.VARNAPanel;
+
+/**
+ * BH SwingJS converted to Timer mechanism for compatibility with JavaScript
+ *
+ */
+public class ControleurBlinkingThread extends Thread implements ActionListener {
+ public static final long DEFAULT_FREQUENCY = 50;
+ private long _period;
+ private VARNAPanel _parent;
+ private double _minVal, _maxVal, _val, _incr;
+ private boolean _increasing = true;
+ private boolean _active = false;
+
+ public ControleurBlinkingThread(VARNAPanel vp) {
+ this(vp, DEFAULT_FREQUENCY, 0, 1.0, 0.0, 0.2);
+ }
+
+ public ControleurBlinkingThread(VARNAPanel vp, long period, double minVal,
+ double maxVal, double val, double incr) {
+ _parent = vp;
+ _period = period;
+ _minVal = minVal;
+ _maxVal = maxVal;
+ _incr = incr;
+ }
+
+ public void setActive(boolean b) {
+ if (_active == b)
+ {}
+ else
+ {
+ _active = b;
+ if (_active) {
+ interrupt();
+ }
+ }
+ }
+
+ public boolean getActive() {
+ return _active;
+ }
+
+
+ public double getVal() {
+ return _val;
+ }
+
+ protected final int START = 0;
+ protected final int LOOP = 1;
+ protected final int STOP = -1;
+
+ protected int nextMode = START;
+ private Timer timer;
+
+
+ public void interrupt() {
+ super.interrupt();
+ stopTimer();
+ run();
+ }
+
+ @Override
+ public void actionPerformed(ActionEvent e) {
+ run();
+ }
+ public void run() {
+ // same as:
+ // while (true) {
+ // try {
+ // if (_active) {
+ // sleep(_period);
+ // if (_increasing) {
+ // _val = Math.min(_val + _incr, _maxVal);
+ // if (_val == _maxVal) {
+ // _increasing = false;
+ // }
+ // } else {
+ // _val = Math.max(_val - _incr, _minVal);
+ // if (_val == _minVal) {
+ // _increasing = true;
+ // }
+ // }
+ // _parent.repaint();
+ // } else {
+ // sleep(10000);
+ // }
+ // } catch (InterruptedException e) {
+ // }
+ // }
+ long delay = 0;
+ while (true) {
+ try {
+ switch (nextMode) {
+ case START:
+ if (_active) {
+ delay = _period;
+ nextMode = LOOP;
+ } else {
+ delay = 10000;
+ nextMode = START;
+ }
+ startTimer(delay);
+ return;
+ case STOP:
+ break;
+ case LOOP:
+ if (_increasing) {
+ _val = Math.min(_val + _incr, _maxVal);
+ if (_val == _maxVal) {
+ _increasing = false;
+ }
+ } else {
+ _val = Math.max(_val - _incr, _minVal);
+ if (_val == _minVal) {
+ _increasing = true;
+ }
+ }
+ _parent.repaint();
+ nextMode = START;
+ continue;
+ }
+ sleep(0);
+ } catch (InterruptedException e) {
+ // ignore??
+ }
+ break;
+ }
+ }
+
+ private void startTimer(long delay) {
+ stopTimer();
+ timer = new Timer((int) delay, this);
+ timer.setRepeats(false);
+ timer.start();
+ }
+
+ private void stopTimer() {
+ if (timer != null) {
+ timer.stop();
+ timer = null;
+ }
+ }
+
+}