diff options
Diffstat (limited to 'bundles/org.eclipse.swt.tools.spies/src/org/eclipse/swt/tools/internal/Sleak.java')
| -rw-r--r-- | bundles/org.eclipse.swt.tools.spies/src/org/eclipse/swt/tools/internal/Sleak.java | 297 |
1 files changed, 297 insertions, 0 deletions
diff --git a/bundles/org.eclipse.swt.tools.spies/src/org/eclipse/swt/tools/internal/Sleak.java b/bundles/org.eclipse.swt.tools.spies/src/org/eclipse/swt/tools/internal/Sleak.java new file mode 100644 index 0000000000..64e6a80894 --- /dev/null +++ b/bundles/org.eclipse.swt.tools.spies/src/org/eclipse/swt/tools/internal/Sleak.java @@ -0,0 +1,297 @@ +/******************************************************************************* + * Copyright (c) 2007, 2016 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.eclipse.swt.tools.internal; + +import java.io.*; + +import org.eclipse.swt.*; +import org.eclipse.swt.graphics.*; +import org.eclipse.swt.widgets.*; + +/** + * 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, event -> refreshObject ()); + text = new Text (parent, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL); + canvas = new Canvas (parent, SWT.BORDER); + canvas.addListener (SWT.Paint, event -> paintCanvas (event)); + check = new Button (parent, SWT.CHECK); + check.setText ("Stack"); + check.addListener (SWT.Selection, e -> toggleStackTrace ()); + start = new Button (parent, SWT.PUSH); + start.setText ("Snap"); + start.addListener (SWT.Selection, event -> refreshAll ()); + stop = new Button (parent, SWT.PUSH); + stop.setText ("Diff"); + stop.addListener (SWT.Selection, event -> refreshDifference ()); + label = new Label (parent, SWT.BORDER); + label.setText ("0 object(s)"); + parent.addListener (SWT.Resize, 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); +} + +} |