package de.linearbits.swt.test;
/*
* Copyright (c) 2000, 2002 IBM Corp. All rights reserved.
* This file is made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*/
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import java.util.Arrays;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Cursor;
import org.eclipse.swt.graphics.DeviceData;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
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.eclipse.swt.graphics.Region;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.List;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.MessageBox;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import de.linearbits.swt.examples.Example1;
public class Sleak {
Display display;
Shell shell;
List list;
Canvas canvas;
Button start, stop, check, analyze;
Text text;
Label label;
Object[] oldObjects = new Object[0];
Error[] oldErrors = new Error[0];
Object[] objects = new Object[0];
Error[] errors = new Error[0];
public void open() {
display = Display.getCurrent();
shell = new Shell(display);
shell.setText("S-Leak");
list = new List(shell, SWT.BORDER | SWT.V_SCROLL);
list.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event event) {
refreshObject();
}
});
text = new Text(shell, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
canvas = new Canvas(shell, SWT.BORDER);
canvas.addListener(SWT.Paint, new Listener() {
public void handleEvent(Event event) {
paintCanvas(event);
}
});
check = new Button(shell, SWT.CHECK);
check.setText("Stack");
check.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event e) {
toggleStackTrace();
}
});
start = new Button(shell, SWT.PUSH);
start.setText("Snap");
start.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event event) {
refreshAll();
}
});
stop = new Button(shell, SWT.PUSH);
stop.setText("Diff");
stop.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event event) {
refreshDifference();
}
});
analyze = new Button(shell, SWT.PUSH);
analyze.setText("Analyze");
analyze.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event event) {
analyze();
}
});
label = new Label(shell, SWT.BORDER);
label.setText("0 object(s)");
shell.addListener(SWT.Resize, new Listener() {
public void handleEvent(Event e) {
layout();
}
});
check.setSelection(false);
text.setVisible(false);
Point size = shell.getSize();
shell.setSize(size.x / 2, size.y / 2);
shell.open();
}
void refreshLabel() {
@SuppressWarnings("unused")
int colors = 0, cursors = 0, fonts = 0, gcs = 0, images = 0, regions = 0;
for (int i = 0; i < objects.length; i++) {
Object object = objects[i];
if (object instanceof Color) colors++;
if (object instanceof Cursor) cursors++;
if (object instanceof Font) fonts++;
if (object instanceof GC) gcs++;
if (object instanceof Image) images++;
if (object instanceof Region) regions++;
}
String string = "";
if (colors != 0) string += colors + " Color(s)\n";
if (cursors != 0) string += cursors + " Cursor(s)\n";
if (fonts != 0) string += fonts + " Font(s)\n";
if (gcs != 0) string += gcs + " GC(s)\n";
if (images != 0) string += images + " Image(s)\n";
/* Currently regions are not counted. */
// if (regions != 0) string += regions + " Region(s)\n";
if (string.length() != 0) {
string = string.substring(0, string.length() - 1);
}
label.setText(string);
}
void analyze() {
refreshAll();
Map<String, Object> map = new HashMap<String, Object>();
Map<Object, Integer> mapIDX = new HashMap<Object, Integer>();
final Map<Object, Integer> mapTimes = new HashMap<Object, Integer>();
for (int i = 0; i < objects.length; i++) {
ByteArrayOutputStream stream = new ByteArrayOutputStream();
PrintStream s = new PrintStream(stream);
errors[i].printStackTrace(s);
String stackTrace = stream.toString();
if (!map.containsKey(stackTrace)) {
map.put(stackTrace, objects[i]);
mapIDX.put(objects[i], i);
mapTimes.put(objects[i], 1);
} else {
Object object = map.get(stackTrace);
mapTimes.put(object, mapTimes.get(object) + 1);
}
}
final Object[] equalObjects = new Object[map.size()];
final Error[] equalErrors = new Error[map.size()];
int idx = 0;
for (Entry<String, Object> entry : map.entrySet()) {
equalObjects[idx++] = entry.getValue();
}
Arrays.sort(equalObjects, new Comparator<Object>() {
@Override
public int compare(Object o1, Object o2) {
return mapTimes.get(o2) - mapTimes.get(o1);
}
});
for (int i = 0; i < equalErrors.length; i++) {
equalErrors[i] = errors[mapIDX.get(equalObjects[i])];
}
check.setSelection(true);
list.removeAll();
text.setText("");
canvas.redraw();
for (int i = 0; i < equalObjects.length; i++) {
list.add(objectName(equalObjects[i]) + "(" + mapTimes.get(equalObjects[i]) + ")");
}
objects = equalObjects;
errors = equalErrors;
refreshLabel();
layout();
}
void refreshDifference() {
DeviceData info = display.getDeviceData();
if (!info.tracking) {
MessageBox dialog = new MessageBox(shell, SWT.ICON_WARNING | SWT.OK);
dialog.setText(shell.getText());
dialog.setMessage("Warning: Device is not tracking resource allocation");
dialog.open();
}
Object[] newObjects = info.objects;
Error[] newErrors = info.errors;
Object[] diffObjects = new Object[newObjects.length];
Error[] diffErrors = new Error[newErrors.length];
int count = 0;
for (int i = 0; i < newObjects.length; i++) {
int index = 0;
while (index < oldObjects.length) {
if (newObjects[i] == oldObjects[index]) break;
index++;
}
if (index == oldObjects.length) {
diffObjects[count] = newObjects[i];
diffErrors[count] = newErrors[i];
count++;
}
}
objects = new Object[count];
errors = new Error[count];
System.arraycopy(diffObjects, 0, objects, 0, count);
System.arraycopy(diffErrors, 0, errors, 0, count);
list.removeAll();
text.setText("");
canvas.redraw();
for (int i = 0; i < objects.length; i++) {
list.add(objectName(objects[i]));
}
refreshLabel();
layout();
}
String objectName(Object object) {
String string = object.toString();
int index = string.lastIndexOf('.');
if (index == -1) return string;
return string.substring(index + 1, string.length());
}
void toggleStackTrace() {
refreshObject();
layout();
}
void paintCanvas(Event event) {
canvas.setCursor(null);
int index = list.getSelectionIndex();
if (index == -1) return;
GC gc = event.gc;
Object object = objects[index];
if (object instanceof Color) {
if (((Color) object).isDisposed()) return;
gc.setBackground((Color) object);
gc.fillRectangle(canvas.getClientArea());
return;
}
if (object instanceof Cursor) {
if (((Cursor) object).isDisposed()) return;
canvas.setCursor((Cursor) object);
return;
}
if (object instanceof Font) {
if (((Font) object).isDisposed()) return;
gc.setFont((Font) object);
FontData[] array = gc.getFont().getFontData();
String string = "";
String lf = text.getLineDelimiter();
for (int i = 0; i < array.length; i++) {
FontData data = array[i];
String style = "NORMAL";
int bits = data.getStyle();
if (bits != 0) {
if ((bits & SWT.BOLD) != 0) style = "BOLD ";
if ((bits & SWT.ITALIC) != 0) style += "ITALIC";
}
string += data.getName() + " " + data.getHeight() + " " + style + lf;
}
gc.drawString(string, 0, 0);
return;
}
// NOTHING TO DRAW FOR GC
// if (object instanceof GC) {
// return;
// }
if (object instanceof Image) {
if (((Image) object).isDisposed()) return;
gc.drawImage((Image) object, 0, 0);
return;
}
if (object instanceof Region) {
if (((Region) object).isDisposed()) return;
String string = ((Region) object).getBounds().toString();
gc.drawString(string, 0, 0);
return;
}
}
void refreshObject() {
int index = list.getSelectionIndex();
if (index == -1) return;
if (check.getSelection()) {
ByteArrayOutputStream stream = new ByteArrayOutputStream();
PrintStream s = new PrintStream(stream);
errors[index].printStackTrace(s);
text.setText(stream.toString());
text.setVisible(true);
canvas.setVisible(false);
} else {
canvas.setVisible(true);
text.setVisible(false);
canvas.redraw();
}
}
void refreshAll() {
oldObjects = new Object[0];
oldErrors = new Error[0];
refreshDifference();
oldObjects = objects;
oldErrors = errors;
}
void layout() {
Rectangle rect = shell.getClientArea();
@SuppressWarnings("unused")
String[] strings = new String[objects.length];
int width = 0;
String[] items = list.getItems();
GC gc = new GC(list);
for (int i = 0; i < objects.length; i++) {
width = Math.max(width, gc.stringExtent(items[i]).x);
}
gc.dispose();
Point size1 = start.computeSize(SWT.DEFAULT, SWT.DEFAULT);
Point size2 = stop.computeSize(SWT.DEFAULT, SWT.DEFAULT);
Point size5 = analyze.computeSize(SWT.DEFAULT, SWT.DEFAULT);
Point size3 = check.computeSize(SWT.DEFAULT, SWT.DEFAULT);
Point size4 = label.computeSize(SWT.DEFAULT, SWT.DEFAULT);
width = Math.max(size1.x, Math.max(size2.x, Math.max(size3.x, Math.max(size5.x, width))));
width = Math.max(64, Math.max(size4.x, list.computeSize(width, SWT.DEFAULT).x));
start.setBounds(0, 0, width, size1.y);
stop.setBounds(0, size1.y, width, size2.y);
analyze.setBounds(0, size1.y + size2.y, width, size5.y);
check.setBounds(0, size1.y + size2.y + size5.y, width, size3.y);
label.setBounds(0, rect.height - size4.y, width, size4.y);
int height = size1.y + size2.y + size3.y + size5.y;
list.setBounds(0, height, width, rect.height - height - size4.y);
text.setBounds(width, 0, rect.width - width, rect.height);
canvas.setBounds(width, 0, rect.width - width, rect.height);
}
public static void main(String[] args) {
DeviceData data = new DeviceData();
data.tracking = true;
Display display = new Display(data);
Sleak sleak = new Sleak();
sleak.open();
Example1.main(display, new String[0]);
Example1.dispose();
Example1.main(display, new String[0]);
Example1.dispose();
Example1.main(display, new String[0]);
Example1.dispose();
Example1.main(display, new String[0]);
sleak.loop();
}
private void loop() {
// Event loop
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep();
}
}
}