/*******************************************************************************
* Copyright (c) 2007 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.pentaho.di.ui.spoon;
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
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.Path;
import org.eclipse.swt.graphics.Pattern;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.graphics.Region;
import org.eclipse.swt.graphics.TextLayout;
import org.eclipse.swt.graphics.Transform;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Composite;
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;
/**
* Instructions on how to use the Sleak tool with a standlaone SWT example:
*
* Modify the main method below to launch your application. Run Sleak.
*
*/
public class Sleak {
List list;
Canvas canvas;
Button start, stop, check;
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 static void main( String[] args ) {
DeviceData data = new DeviceData();
data.tracking = true;
Display display = new Display( data );
Sleak sleak = new Sleak();
Shell shell = new Shell( display );
shell.setText( "S-Leak" );
Point size = shell.getSize();
shell.setSize( size.x / 2, size.y / 2 );
sleak.create( shell );
shell.open();
// Launch your application here
// e.g.
// Shell shell = new Shell(display);
// Button button1 = new Button(shell, SWT.PUSH);
// button1.setBounds(10, 10, 100, 50);
// button1.setText("Hello World");
// Image image = new Image(display, 20, 20);
// Button button2 = new Button(shell, SWT.PUSH);
// button2.setBounds(10, 70, 100, 50);
// button2.setImage(image);
// shell.open();
while ( !shell.isDisposed() ) {
if ( !display.readAndDispatch() ) {
display.sleep();
}
}
display.dispose();
}
public void create( Composite parent ) {
list = new List( parent, SWT.BORDER | SWT.V_SCROLL );
list.addListener( SWT.Selection, new Listener() {
public void handleEvent( Event event ) {
refreshObject();
}
} );
text = new Text( parent, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL );
canvas = new Canvas( parent, SWT.BORDER );
canvas.addListener( SWT.Paint, new Listener() {
public void handleEvent( Event event ) {
paintCanvas( event );
}
} );
check = new Button( parent, SWT.CHECK );
check.setText( "Stack" );
check.addListener( SWT.Selection, new Listener() {
public void handleEvent( Event e ) {
toggleStackTrace();
}
} );
start = new Button( parent, SWT.PUSH );
start.setText( "Snap" );
start.addListener( SWT.Selection, new Listener() {
public void handleEvent( Event event ) {
refreshAll();
}
} );
stop = new Button( parent, SWT.PUSH );
stop.setText( "Diff" );
stop.addListener( SWT.Selection, new Listener() {
public void handleEvent( Event event ) {
refreshDifference();
}
} );
label = new Label( parent, SWT.BORDER );
label.setText( "0 object(s)" );
parent.addListener( SWT.Resize, new Listener() {
public void handleEvent( Event e ) {
layout();
}
} );
check.setSelection( false );
text.setVisible( false );
layout();
}
void refreshLabel() {
int colors = 0, cursors = 0, fonts = 0, gcs = 0, images = 0;
int paths = 0, patterns = 0, regions = 0, textLayouts = 0, transforms = 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 Path ) {
paths++;
}
if ( object instanceof Pattern ) {
patterns++;
}
if ( object instanceof Region ) {
regions++;
}
if ( object instanceof TextLayout ) {
textLayouts++;
}
if ( object instanceof Transform ) {
transforms++;
}
}
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";
}
if ( paths != 0 ) {
string += paths + " Paths(s)\n";
}
if ( patterns != 0 ) {
string += patterns + " Pattern(s)\n";
}
if ( regions != 0 ) {
string += regions + " Region(s)\n";
}
if ( textLayouts != 0 ) {
string += textLayouts + " TextLayout(s)\n";
}
if ( transforms != 0 ) {
string += transforms + " Transform(s)\n";
}
if ( string.length() != 0 ) {
string = string.substring( 0, string.length() - 1 );
}
label.setText( string );
}
void refreshDifference() {
Display display = canvas.getDisplay();
DeviceData info = display.getDeviceData();
if ( !info.tracking ) {
Shell shell = canvas.getShell();
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( objects[i].toString() );
}
refreshLabel();
layout();
}
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 Path ) {
if ( ( (Path) object ).isDisposed() ) {
return;
}
gc.drawPath( (Path) object );
return;
}
if ( object instanceof Pattern ) {
if ( ( (Pattern) object ).isDisposed() ) {
return;
}
gc.setBackgroundPattern( (Pattern) object );
gc.fillRectangle( canvas.getClientArea() );
gc.setBackgroundPattern( null );
return;
}
if ( object instanceof Region ) {
if ( ( (Region) object ).isDisposed() ) {
return;
}
String string = ( (Region) object ).getBounds().toString();
gc.drawString( string, 0, 0 );
return;
}
if ( object instanceof TextLayout ) {
if ( ( (TextLayout) object ).isDisposed() ) {
return;
}
( (TextLayout) object ).draw( gc, 0, 0 );
return;
}
if ( object instanceof Transform ) {
if ( ( (Transform) object ).isDisposed() ) {
return;
}
String string = ( (Transform) object ).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() {
Composite parent = canvas.getParent();
Rectangle rect = parent.getClientArea();
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 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, 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 );
check.setBounds( 0, size1.y + size2.y, width, size3.y );
label.setBounds( 0, rect.height - size4.y, width, size4.y );
int height = size1.y + size2.y + size3.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 );
}
}