org.eclipse.xtext.xbase.ui.builder.XbaseBuilderConfigurationBlock.java Source code

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Here is the source code for org.eclipse.xtext.xbase.ui.builder.XbaseBuilderConfigurationBlock.java

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/*******************************************************************************
 * Copyright (c) 2015 itemis AG (http://www.itemis.eu) 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
 *******************************************************************************/
package org.eclipse.xtext.xbase.ui.builder;

import static org.eclipse.xtext.xbase.ui.builder.XbaseBuilderPreferenceAccess.*;

import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Text;
import org.eclipse.xtext.builder.preferences.BuilderConfigurationBlock;
import org.eclipse.xtext.util.JavaVersion;

import com.google.inject.Inject;

/**
 * Builder configuration block that adds compiler settings for Xbase.
 * 
 * @author Miro Spoenemann - Initial contribution and API
 */
public class XbaseBuilderConfigurationBlock extends BuilderConfigurationBlock {

    @Inject
    private XbaseBuilderPreferenceAccess preferenceAccess;

    private Combo versionCombo;

    private Button useComplianceButton;

    @Override
    protected void createGeneralSectionItems(Composite composite) {
        super.createGeneralSectionItems(composite);

        useComplianceButton = addCheckBox(composite, "Use source compatibility level from Java settings",
                PREF_USE_COMPILER_SOURCE, BOOLEAN_VALUES, 0);

        int valueCount = JavaVersion.values().length;
        String[] values = new String[valueCount];
        String[] valueLabels = new String[valueCount];
        for (int i = 0; i < valueCount; i++) {
            JavaVersion v = JavaVersion.values()[i];
            values[i] = v.toString();
            valueLabels[i] = v.getLabel();
        }
        versionCombo = addComboBox(composite, "Source compatibility level of generated code:", PREF_JAVA_VERSION, 0,
                values, valueLabels);
        SelectionListener selectionListener = new SelectionAdapter() {
            @Override
            public void widgetSelected(SelectionEvent e) {
                updateVersionCombo();
            }
        };
        selectionListener.widgetSelected(null);
        useComplianceButton.addSelectionListener(selectionListener);

        addCheckBox(composite, "Generate @SuppressWarnings annotations", PREF_GENERATE_SUPPRESS_WARNINGS,
                BOOLEAN_VALUES, 0);

        final Button generateGeneratedButton = addCheckBox(composite, "Generate @Generated annotations",
                PREF_GENERATE_GENERATED, BOOLEAN_VALUES, 0);

        final Button includeDateButton = addCheckBox(composite, "Include current time information",
                PREF_DATE_IN_GENERATED, BOOLEAN_VALUES, INDENT_AMOUNT);
        includeDateButton.setEnabled(generateGeneratedButton.getSelection());

        final Text commentText = addTextField(composite, "Comment:", PREF_GENERATED_COMMENT, INDENT_AMOUNT, 0);
        commentText.setEnabled(generateGeneratedButton.getSelection());
        generateGeneratedButton.addSelectionListener(new SelectionAdapter() {
            @Override
            public void widgetSelected(SelectionEvent e) {
                includeDateButton.setEnabled(generateGeneratedButton.getSelection());
                commentText.setEnabled(generateGeneratedButton.getSelection());
            }
        });
    }

    @Override
    protected void updateCombo(Combo curr) {
        if (curr == versionCombo)
            updateVersionCombo();
        else
            super.updateCombo(curr);
    }

    private void updateVersionCombo() {
        boolean useCompliance = useComplianceButton.getSelection();
        versionCombo.setEnabled(!useCompliance);
        if (useCompliance) {
            String javaSourceOption = javaValue(JavaCore.COMPILER_SOURCE);
            JavaVersion javaVersion = preferenceAccess.fromCompilerSourceLevel(javaSourceOption);
            JavaVersion selectedVersion = JavaVersion.values()[versionCombo.getSelectionIndex()];
            if (javaVersion != selectedVersion) {
                versionCombo.select(javaVersion.ordinal());
            }
        }
    }

    protected String javaValue(final String javaPreference) {
        IJavaProject javaProject = JavaCore.create(getProject());
        if (javaProject != null && javaProject.exists() && javaProject.getProject().isAccessible()) {
            return javaProject.getOption(javaPreference, true);
        } else {
            return JavaCore.getOption(javaPreference);
        }
    }

}