/*
* File : SpeedGraphic.java
* Created : 15 d�c. 2003}
* By : Olivier
*
* Azureus - a Java Bittorrent client
*
* 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.
*
* 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 ( see the LICENSE file ).
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.gudy.azureus2.ui.swt.components.graphics;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.gudy.azureus2.core3.config.COConfigurationManager;
import org.gudy.azureus2.core3.config.ParameterListener;
import org.gudy.azureus2.ui.swt.mainwindow.Colors;
/**
* @author Olivier
*
*/
public class PingGraphic extends ScaledGraphic implements ParameterListener {
private static final int ENTRIES = 2000;
private static final int COLOR_AVERAGE = 0;
public static Color[] colors = new Color[] {
Colors.grey,Colors.blues[Colors.BLUES_MIDDARK], Colors.fadedGreen,Colors.fadedRed };
private int internalLoop;
private int graphicsUpdate;
private Point oldSize;
protected Image bufferImage;
private int average = 0;
private int nbValues = 0;
private int[][] all_values = new int[1][ENTRIES];
private int currentPosition;
private PingGraphic(Scale scale,ValueFormater formater) {
super(scale,formater);
currentPosition = 0;
COConfigurationManager.addParameterListener("Graphics Update",this);
parameterChanged("Graphics Update");
}
public static PingGraphic getInstance() {
return new PingGraphic(new Scale(),new ValueFormater() {
public String format(int value) {
return value + " ms";
}
});
}
public void addIntsValue(int[] new_values) {
try{
this_mon.enter();
if ( all_values.length < new_values.length ){
int[][] new_all_values = new int[new_values.length][];
for (int i=0;i<all_values.length;i++){
new_all_values[i] = all_values[i];
}
for (int i=all_values.length;i<new_all_values.length; i++ ){
new_all_values[i] = new int[ENTRIES];
}
all_values = new_all_values;
}
average += new_values[0] - all_values[0][currentPosition];
for (int i=0;i<new_values.length;i++){
all_values[i][currentPosition] = new_values[i];
}
currentPosition++;
if(nbValues < ENTRIES){
nbValues++;
}
if(currentPosition >= ENTRIES){
currentPosition = 0;
}
}finally{
this_mon.exit();
}
}
public void refresh() {
if(drawCanvas == null || drawCanvas.isDisposed())
return;
Rectangle bounds = drawCanvas.getClientArea();
if(bounds.height < 30 || bounds.width < 100 || bounds.width > 2000 || bounds.height > 2000)
return;
boolean sizeChanged = (oldSize == null || oldSize.x != bounds.width || oldSize.y != bounds.height);
oldSize = new Point(bounds.width,bounds.height);
internalLoop++;
if(internalLoop > graphicsUpdate)
internalLoop = 0;
if(internalLoop == 0 || sizeChanged) {
drawChart(sizeChanged);
}
GC gc = new GC(drawCanvas);
gc.drawImage(bufferImage,bounds.x,bounds.y);
gc.dispose();
}
protected void drawChart(boolean sizeChanged) {
try{
this_mon.enter();
drawScale(sizeChanged);
Rectangle bounds = drawCanvas.getClientArea();
//If bufferedImage is not null, dispose it
if(bufferImage != null && ! bufferImage.isDisposed())
bufferImage.dispose();
bufferImage = new Image(drawCanvas.getDisplay(),bounds);
GC gcImage = new GC(bufferImage);
gcImage.drawImage(bufferScale,0,0);
int oldAverage = 0;
int[] oldTargetValues = new int[all_values.length];
int[] maxs = new int[all_values.length];
for(int x = 0 ; x < bounds.width - 71 ; x++) {
int position = currentPosition - x -1;
if(position < 0)
position+= 2000;
for (int z=0;z<all_values.length;z++){
int value = all_values[z][position];
if(value > maxs[z]){
maxs[z] = value;
}
}
}
int max = 0;
for (int i=0;i<maxs.length;i++){
if(maxs[i] > max) {
max = maxs[i];
}
}
scale.setMax(max);
int maxHeight = scale.getScaledValue(max);
for(int x = 0 ; x < bounds.width - 71 ; x++) {
int position = currentPosition - x -1;
if(position < 0)
position+= 2000;
int xDraw = bounds.width - 71 - x;
gcImage.setLineWidth(1);
for (int z=0;z<all_values.length;z++){
int targetValue = all_values[z][position];
int oldTargetValue = oldTargetValues[z];
if ( x > 1 ){
int h1 = bounds.height - scale.getScaledValue(targetValue) - 2;
int h2 = bounds.height - scale.getScaledValue(oldTargetValue) - 2;
gcImage.setForeground( z <= 2 ? colors[z+1] : colors[3]);
gcImage.drawLine(xDraw,h1,xDraw+1, h2);
}
oldTargetValues[z] = all_values[z][position];
}
int average = computeAverage(position);
if(x > 6) {
int h1 = bounds.height - scale.getScaledValue(average) - 2;
int h2 = bounds.height - scale.getScaledValue(oldAverage) - 2;
gcImage.setForeground(colors[COLOR_AVERAGE]);
gcImage.setLineWidth(2);
gcImage.drawLine(xDraw,h1,xDraw+1, h2);
}
oldAverage = average;
}
if(nbValues > 0) {
int height = bounds.height - scale.getScaledValue(computeAverage(currentPosition-6)) - 2;
gcImage.setForeground(colors[COLOR_AVERAGE]);
gcImage.drawText(formater.format(computeAverage(currentPosition-6)),bounds.width - 65,height - 12,true);
}
gcImage.dispose();
}finally{
this_mon.exit();
}
}
protected int computeAverage(int position) {
int sum = 0;
int nbItems = 0;
for(int i = -5 ; i < 6 ; i++) {
int pos = position + i;
if (pos < 0)
pos += 2000;
if(pos >= 2000)
pos -= 2000;
for(int z=0 ; z < all_values.length ; z++) {
sum += all_values[z][pos];
nbItems++;
}
}
return (sum / nbItems);
}
public void parameterChanged(String parameter) {
graphicsUpdate = COConfigurationManager.getIntParameter("Graphics Update");
}
public void dispose() {
super.dispose();
if(bufferImage != null && ! bufferImage.isDisposed()) {
bufferImage.dispose();
}
COConfigurationManager.removeParameterListener("Graphics Update",this);
}
}