Java tutorial
/* ********************************************************************** ** ** Copyright notice ** ** ** ** (c) 2005-2011 RSSOwl Development Team ** ** http://www.rssowl.org/ ** ** ** ** 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.rssowl.org/legal/epl-v10.html ** ** ** ** A copy is found in the file epl-v10.html and important notices to the ** ** license from the team is found in the textfile LICENSE.txt distributed ** ** in this package. ** ** ** ** This copyright notice MUST APPEAR in all copies of the file! ** ** ** ** Contributors: ** ** RSSOwl Development Team - initial API and implementation ** ** ** ** ********************************************************************** */ package org.rssowl.ui.internal.dialogs; import org.eclipse.core.runtime.IStatus; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.IMessageProvider; import org.eclipse.jface.dialogs.TitleAreaDialog; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.jface.resource.LocalResourceManager; import org.eclipse.osgi.util.NLS; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Link; import org.eclipse.swt.widgets.Shell; import org.rssowl.core.util.StringUtils; import org.rssowl.ui.internal.OwlUI; import org.rssowl.ui.internal.util.BrowserUtils; import org.rssowl.ui.internal.util.LayoutUtils; /** * A Dialog that is shown to the user in case RSSOwl failed to start or during a * fatal error like an Out of Memory exception. * * @author bpasero */ public class FatalOutOfMemoryErrorDialog extends TitleAreaDialog { private LocalResourceManager fResources; private final IStatus fErrorStatus; /** * @param errorStatus */ public FatalOutOfMemoryErrorDialog(IStatus errorStatus) { super(null); fErrorStatus = errorStatus; fResources = new LocalResourceManager(JFaceResources.getResources()); } /* * @see org.eclipse.jface.dialogs.TrayDialog#close() */ @Override public boolean close() { fResources.dispose(); return super.close(); } /* * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell) */ @Override protected void configureShell(Shell newShell) { super.configureShell(newShell); newShell.setText(Messages.StartupErrorDialog_RSSOWL_CRASH_REPORTER); /* Images no longer initialized */ Image img_16x16 = OwlUI.getImage(fResources, "icons/product/16x16.png"); //$NON-NLS-1$ Image img_32x32 = OwlUI.getImage(fResources, "icons/product/32x32.png"); //$NON-NLS-1$ Image img_48x48 = OwlUI.getImage(fResources, "icons/product/48x48.png"); //$NON-NLS-1$ Image img_64x64 = OwlUI.getImage(fResources, "icons/product/64x64.png"); //$NON-NLS-1$ Image img_128x128 = OwlUI.getImage(fResources, "icons/product/128x128.png"); //$NON-NLS-1$ newShell.setImages(new Image[] { img_16x16, img_32x32, img_48x48, img_64x64, img_128x128 }); } /* * @see org.eclipse.jface.dialogs.TitleAreaDialog#createDialogArea(org.eclipse.swt.widgets.Composite) */ @Override protected Control createDialogArea(Composite parent) { /* Composite to hold all components */ Composite composite = new Composite((Composite) super.createDialogArea(parent), SWT.NONE); composite.setLayout(LayoutUtils.createGridLayout(2, 5, 10, 15, 5, false)); composite.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false)); /* Title */ setTitle(Messages.StartupErrorDialog_WE_SORRY); /* Title Image */ setTitleImage(OwlUI.getImage(fResources, "icons/wizban/welcome_wiz.gif")); //$NON-NLS-1$ /* Title Message */ setMessage(Messages.FatalOutOfMemoryErrorDialog_RSSOWL_CRASHED_OOM, IMessageProvider.WARNING); /* Recovery Label */ Link recoveryMessageLabel = new Link(composite, SWT.WRAP); recoveryMessageLabel.setText(Messages.FatalOutOfMemoryErrorDialog_CRASH_ADVISE_OOM); recoveryMessageLabel.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false, 2, 1)); recoveryMessageLabel.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { try { if ("faq".equals(e.text)) //$NON-NLS-1$ BrowserUtils.openFAQ(fErrorStatus); else if ("forum".equals(e.text)) //$NON-NLS-1$ BrowserUtils.openHelpForum(fErrorStatus); } catch (Throwable t) { setMessage(t.getMessage(), IMessageProvider.ERROR); } } }); /* Crash Report Label */ Link dialogMessageLabel = new Link(composite, SWT.WRAP); dialogMessageLabel.setText(Messages.FatalOutOfMemoryErrorDialog_CRASH_DIAGNOSE_OOM); dialogMessageLabel.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false, 2, 1)); dialogMessageLabel.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { try { if ("save".equals(e.text)) //$NON-NLS-1$ OwlUI.saveCrashReport(getShell()); else BrowserUtils.sendErrorLog(); } catch (Throwable t) { setMessage(t.getMessage(), IMessageProvider.ERROR); } } }); /* Error Details Label */ Label reasonLabel = new Label(composite, SWT.NONE); reasonLabel.setText(Messages.StartupErrorDialog_ERROR_DETAILS); reasonLabel.setFont(OwlUI.getBold(JFaceResources.DIALOG_FONT)); reasonLabel.setLayoutData(new GridData(SWT.BEGINNING, SWT.BEGINNING, false, false)); Label errorDetailsLabel = new Label(composite, SWT.WRAP); if (StringUtils.isSet(fErrorStatus.getMessage())) errorDetailsLabel .setText(NLS.bind(Messages.FatalOutOfMemoryErrorDialog_OOM_ERROR_N, fErrorStatus.getMessage())); else errorDetailsLabel.setText(Messages.FatalOutOfMemoryErrorDialog_OOM_ERROR); errorDetailsLabel.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false)); /* Holder for the separator to the OK and Cancel buttons */ Composite sepHolder = new Composite(parent, SWT.NONE); sepHolder.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false)); sepHolder.setLayout(LayoutUtils.createGridLayout(1, 0, 0)); /* Separator */ Label separator = new Label(sepHolder, SWT.SEPARATOR | SWT.HORIZONTAL); separator.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); applyDialogFont(composite); return composite; } /* * @see org.eclipse.jface.dialogs.Dialog#buttonPressed(int) */ @Override protected void buttonPressed(int buttonId) { setReturnCode(buttonId); close(); } /* * @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite) */ @Override protected void createButtonsForButtonBar(Composite parent) { createButton(parent, IDialogConstants.HELP_ID, Messages.StartupErrorDialog_HELP, true); getButton(IDialogConstants.HELP_ID).setFocus(); } /* * @see org.eclipse.jface.dialogs.Dialog#initializeBounds() */ @Override protected void initializeBounds() { super.initializeBounds(); Point bestSize = getShell().computeSize(convertHorizontalDLUsToPixels(OwlUI.MIN_DIALOG_WIDTH_DLU), SWT.DEFAULT); Point location = getInitialLocation(bestSize); getShell().setBounds(location.x, location.y, bestSize.x, bestSize.y); } }