org.eclipse.e4.tools.ui.designer.dialogs.AbstractFindElementsDialog.java Source code

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Here is the source code for org.eclipse.e4.tools.ui.designer.dialogs.AbstractFindElementsDialog.java

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/*******************************************************************************
 * Copyright (c) 2006, 2010 Soyatec (http://www.soyatec.com) 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:
 *     Soyatec - initial API and implementation
 *******************************************************************************/
package org.eclipse.e4.tools.ui.designer.dialogs;

import java.text.Collator;
import java.util.Comparator;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.e4.tools.ui.designer.E4DesignerPlugin;
import org.eclipse.e4.tools.ui.designer.utils.ApplicationModelHelper;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.dialogs.FilteredItemsSelectionDialog;

/**
 * @author Jin Liu(jin.liu@soyatec.com)
 */
public abstract class AbstractFindElementsDialog extends FilteredItemsSelectionDialog {

    private Object[] initializeElements;
    private String detailsLabelText;
    private ILabelProvider labelProvider;

    public AbstractFindElementsDialog(Shell shell, Object[] initializeElements, String detailsLabelText) {
        super(shell, false);
        this.initializeElements = initializeElements;
        this.detailsLabelText = detailsLabelText;
        setTitle("Find Element Dialog");
        setInitialPattern("?");
        setListLabelProvider(labelProvider = ApplicationModelHelper.getLabelProvider());
        setDetailsLabelProvider(new LabelProvider() {
            public String getText(Object element) {
                return getFilterForeignText(element);
            }
        });
    }

    protected Label createMessageArea(Composite composite) {
        Label msgLabel = super.createMessageArea(composite);
        msgLabel.setFont(JFaceResources.getBannerFont());
        return msgLabel;
    }

    protected Control createExtendedContentArea(Composite parent) {
        if (detailsLabelText != null) {
            Label label = new Label(parent, SWT.NONE);
            label.setText(detailsLabelText);
            label.setForeground(parent.getDisplay().getSystemColor(SWT.COLOR_RED));
            return label;
        }
        return null;
    }

    protected IDialogSettings getDialogSettings() {
        return E4DesignerPlugin.getDefault().getDialogSettings();
    }

    protected IStatus validateItem(Object item) {
        return Status.OK_STATUS;
    }

    protected ItemsFilter createFilter() {
        return new ItemsFilter() {
            public boolean matchItem(Object item) {
                return matches(getFilterForeignText(item));
            }

            public boolean isConsistentItem(Object item) {
                return true;
            }
        };
    }

    protected abstract String getFilterForeignText(Object item);

    protected Comparator getItemsComparator() {
        return new Comparator() {
            public int compare(Object o1, Object o2) {
                String t1 = labelProvider.getText(o1);
                String t2 = labelProvider.getText(o2);
                return Collator.getInstance().compare(t1, t2);
            }
        };
    }

    protected void fillContentProvider(AbstractContentProvider contentProvider, ItemsFilter itemsFilter,
            IProgressMonitor progressMonitor) throws CoreException {
        if (initializeElements != null) {
            for (Object object : initializeElements) {
                contentProvider.add(object, itemsFilter);
            }
        }
    }

    public String getElementName(Object item) {
        return ApplicationModelHelper.getText(item);
    }

}