org.eclipse.jpt.jpa.ui.internal.prefs.JptPreferencesPage.java Source code

Introduction

Here is the source code for org.eclipse.jpt.jpa.ui.internal.prefs.JptPreferencesPage.java

Source

/*******************************************************************************
 * Copyright (c) 2012 Oracle. 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:
 *     Oracle - initial API and implementation
 ******************************************************************************/
package org.eclipse.jpt.jpa.ui.internal.prefs;

import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.preference.PreferencePage;
import org.eclipse.jpt.common.ui.internal.dialogs.OptionalMessageDialog;
import org.eclipse.jpt.jpa.ui.JptJpaUiMessages;
import org.eclipse.jpt.jpa.ui.internal.plugin.JptJpaUiPlugin;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;

/**
 * This is the root of the Java Persistence preferences hierarchy in the IDE
 * preferences dialog.
 * <p>
 * Structure:
 * <p>
 * Java Persistence<br>
 *
 * @version 2.2
 * @since 2.2
 */
public class JptPreferencesPage extends PreferencePage implements IWorkbenchPreferencePage {

    @Override
    protected Control createContents(Composite parent) {

        Composite container = new Composite(parent, SWT.NONE);
        GridLayout layout = new GridLayout();
        layout.marginHeight = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);
        layout.marginWidth = 0;
        layout.verticalSpacing = convertVerticalDLUsToPixels(10);
        layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING);
        container.setLayout(layout);

        layout = new GridLayout();
        layout.numColumns = 2;

        Group dontAskGroup = new Group(container, SWT.NONE);
        dontAskGroup.setLayout(layout);
        dontAskGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
        dontAskGroup.setText(JptJpaUiMessages.JptPreferencesPage_DoNotShowDialogs);

        Label label = new Label(dontAskGroup, SWT.WRAP);
        label.setText(JptJpaUiMessages.JptPreferencesPage_DoNotShowText);
        GridData data = new GridData(GridData.FILL, GridData.CENTER, true, false);
        data.widthHint = convertVerticalDLUsToPixels(50);
        label.setLayoutData(data);

        Button button = new Button(dontAskGroup, SWT.PUSH);
        button.setText(JptJpaUiMessages.JptPreferencesPage_ClearButtonText);
        button.setLayoutData(new GridData(GridData.FILL, GridData.BEGINNING, false, false));
        button.addSelectionListener(new SelectionListener() {
            public void widgetSelected(SelectionEvent e) {
                unhideAllDialogs();
            }

            public void widgetDefaultSelected(SelectionEvent e) {
                unhideAllDialogs();
            }
        });

        return container;
    }

    public void init(IWorkbench workbench) {
        setPreferenceStore(JptJpaUiPlugin.instance().getPreferenceStore());
    }

    private final void unhideAllDialogs() {
        OptionalMessageDialog.clearAllRememberedStates();
    }
}