de.dentrassi.eclipse.rpm.editor.OverviewPage.java Source code

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Here is the source code for de.dentrassi.eclipse.rpm.editor.OverviewPage.java

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/*******************************************************************************
 * Copyright (c) 2016 IBH SYSTEMS GmbH 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:
 *     IBH SYSTEMS GmbH - initial API and implementation
 *******************************************************************************/
package de.dentrassi.eclipse.rpm.editor;

import java.util.Optional;
import java.util.function.Function;
import java.util.function.Supplier;

import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.packagedrone.utils.rpm.Architecture;
import org.eclipse.packagedrone.utils.rpm.OperatingSystem;
import org.eclipse.packagedrone.utils.rpm.RpmLead;
import org.eclipse.packagedrone.utils.rpm.Type;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.forms.widgets.FormToolkit;
import org.eclipse.ui.forms.widgets.ScrolledForm;

public class OverviewPage {
    private final ScrolledForm form;

    private final Text type;
    private final Text arch;
    private final Text version;
    private final Text os;
    private final Text name;
    private final Text sigVersion;
    private final FormToolkit toolkit;

    private final Composite body;

    public OverviewPage(final Composite parent) {
        this.toolkit = new FormToolkit(parent.getDisplay());
        parent.addDisposeListener(evt -> this.toolkit.dispose());

        this.form = this.toolkit.createScrolledForm(parent);
        this.form.setText("RPM Lead");
        this.form.setMessage("This page shows the RPM lead information", IMessageProvider.NONE);

        this.toolkit.decorateFormHeading(this.form.getForm());

        this.body = this.form.getBody();
        this.body.setLayout(new GridLayout(2, false));

        this.name = createField("Name");
        this.type = createField("Type");
        this.arch = createField("Architecture");
        this.os = createField("O/S");
        this.version = createField("Lead Version");
        this.sigVersion = createField("Signature Version");

        this.toolkit.paintBordersFor(this.form.getBody());
    }

    private Text createField(final String string) {
        Label label;
        label = this.toolkit.createLabel(this.body, string, SWT.NONE);

        label.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, false, false));
        label.setText(string);

        final Text text = this.toolkit.createText(this.body, null, SWT.READ_ONLY | SWT.SINGLE);

        text.setLayoutData(new GridData(GridData.FILL, GridData.BEGINNING, true, false));

        return text;
    }

    public void setInformation(final RpmInformation info) {
        final RpmLead lead = info.getLead();

        this.name.setText(lead.getName());
        this.type.setText(makeEnumFormat(Type::fromValue, () -> (int) lead.getType(), "0x%02X"));
        this.arch.setText(makeEnumFormat(Architecture::fromValue, () -> (int) lead.getArchitecture(), "0x%02X"));
        this.os.setText(
                makeEnumFormat(OperatingSystem::fromValue, () -> (int) lead.getOperatingSystem(), "0x%02X"));

        this.version.setText(String.format("%s.%s", lead.getMajor(), lead.getMinor()));
        this.sigVersion.setText(String.format("%d", lead.getSignatureVersion()));
    }

    private <T, E extends Enum<?>> String makeEnumFormat(final Function<T, Optional<E>> from,
            final Supplier<T> supplier, final String format) {
        return makeEnum(from, supplier, (v) -> String.format(format, v));
    }

    private <T, E extends Enum<?>> String makeEnum(final Function<T, Optional<E>> from, final Supplier<T> supplier,
            final Function<T, String> cvt) {
        final T value = supplier.get();
        final Optional<E> entry = from.apply(value);
        if (entry.isPresent()) {
            return String.format("%s (%s)", entry.get().name(), cvt.apply(value));
        } else {
            return cvt.apply(value);
        }
    }

    public Composite getContainer() {
        return this.form;
    }
}