org.eclipse.cdt.managedbuilder.xlc.ui.preferences.XLCompilerPreferencePage.java Source code

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Here is the source code for org.eclipse.cdt.managedbuilder.xlc.ui.preferences.XLCompilerPreferencePage.java

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/*******************************************************************************
 * Copyright (c) 2007, 2011 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.cdt.managedbuilder.xlc.ui.preferences;

import org.eclipse.cdt.managedbuilder.xlc.ui.Messages;
import org.eclipse.cdt.managedbuilder.xlc.ui.XLCUIPlugin;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.jface.preference.ComboFieldEditor;
import org.eclipse.jface.preference.DirectoryFieldEditor;
import org.eclipse.jface.preference.FieldEditorPreferencePage;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;

/**
 * This class represents a preference page that
 * is contributed to the Preferences dialog. By
 * subclassing <samp>FieldEditorPreferencePage</samp>, we
 * can use the field support built into JFace that allows
 * us to create a page that is small and knows how to
 * save, restore and apply itself.
 * <p>
 * This page is used to modify preferences only. They
 * are stored in the preference store that belongs to
 * the main plug-in class. That way, preferences can
 * be accessed directly via the preference store.
 */

public class XLCompilerPreferencePage extends FieldEditorPreferencePage implements IWorkbenchPreferencePage {

    private String originalMessage;

    public XLCompilerPreferencePage() {
        super(FLAT);
        setPreferenceStore(XLCUIPlugin.getDefault().getPreferenceStore());
        setDescription(Messages.XLCompilerPreferencePage_0);
    }

    /**
     * Creates the field editors. Field editors are abstractions of
     * the common GUI blocks needed to manipulate various types
     * of preferences. Each field editor knows how to save and
     * restore itself.
     */
    @Override
    public void createFieldEditors() {

        DirectoryFieldEditor pathEditor = new DirectoryFieldEditor(PreferenceConstants.P_XL_COMPILER_ROOT,
                Messages.XLCompilerPreferencePage_1, getFieldEditorParent()) {
            @Override
            protected boolean doCheckState() {
                // always return true, as we don't want to fail cases when compiler is installed remotely
                // just warn user
                if (!super.doCheckState()) {
                    setMessage(Messages.XLCompilerPreferencePage_3, IMessageProvider.WARNING);
                } else {
                    setMessage(originalMessage);
                }

                return true;
            }

            @Override
            protected boolean checkState() {
                return doCheckState();
            }

        };

        addField(pathEditor);

        String[][] versionEntries = {
                { PreferenceConstants.P_XL_COMPILER_VERSION_8_NAME, PreferenceConstants.P_XL_COMPILER_VERSION_8 },
                { PreferenceConstants.P_XL_COMPILER_VERSION_9_NAME, PreferenceConstants.P_XL_COMPILER_VERSION_9 },
                { PreferenceConstants.P_XL_COMPILER_VERSION_10_NAME, PreferenceConstants.P_XL_COMPILER_VERSION_10 },
                { PreferenceConstants.P_XL_COMPILER_VERSION_11_NAME,
                        PreferenceConstants.P_XL_COMPILER_VERSION_11 } };

        addField(new ComboFieldEditor(PreferenceConstants.P_XLC_COMPILER_VERSION,
                Messages.XLCompilerPreferencePage_2, versionEntries, getFieldEditorParent()));

    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.IWorkbenchPreferencePage#init(org.eclipse.ui.IWorkbench)
     */
    @Override
    public void init(IWorkbench workbench) {
        originalMessage = getMessage();
    }

}