net.sf.sveditor.ui.text.OutlineInformationControl.java Source code

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Here is the source code for net.sf.sveditor.ui.text.OutlineInformationControl.java

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package net.sf.sveditor.ui.text;

/*******************************************************************************
 * Copyright (c) 2000, 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
 *     Armond Paiva - repurposed from JDT for SVEditor Objects Quick View
 *     Armond Paiva - repurposed from Objects Quick View to Outline Quick View
 *******************************************************************************/

import net.sf.sveditor.core.db.ISVDBItemBase;
import net.sf.sveditor.core.db.SVDBFile;
import net.sf.sveditor.ui.editor.SVEditor;
import net.sf.sveditor.ui.svcp.SVDBDecoratingLabelProvider;
import net.sf.sveditor.ui.svcp.SVTreeContentProvider;
import net.sf.sveditor.ui.svcp.SVTreeLabelProvider;

import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.IElementComparer;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.ViewerComparator;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.ui.dialogs.FilteredTree;
import org.eclipse.ui.dialogs.PatternFilter;

/**
 * Show outline in light-weight control.
 *
 * @since 2.1
 */
public class OutlineInformationControl extends AbstractInformationControl {

    /**
     * Creates a new system verilog outline information control.
     *
     * @param parent
     * @param shellStyle
     * @param treeStyle
     * @param commandId
     */
    public OutlineInformationControl(Shell parent, int shellStyle, int treeStyle, String commandId) {
        super(parent, shellStyle, treeStyle, commandId, true);
    }

    protected FilteredTree fObjectTree;
    protected PatternFilter fPatternFilter;
    protected TreeViewer fTreeViewer;
    protected SVTreeContentProvider fContentProvider;
    protected SVDBFile fSVDBFile;
    protected SVEditor fEditor;

    @Override
    public void setFocus() {
        fObjectTree.getFilterControl().setFocus();
    };

    /**
     * {@inheritDoc}
     */
    @Override
    protected TreeViewer createTreeViewer(Composite parent, int style) {

        fPatternFilter = new PatternFilter();

        fObjectTree = new FilteredTree(parent, SWT.H_SCROLL, fPatternFilter, true);
        fTreeViewer = fObjectTree.getViewer();
        fContentProvider = new SVTreeContentProvider();

        final Tree tree = fTreeViewer.getTree();

        GridData gd = new GridData(GridData.FILL_BOTH);
        gd.heightHint = tree.getItemHeight() * 20; // Initial height of dialog
        gd.widthHint = 600; // Initial width of dialog
        tree.setLayoutData(gd);

        fTreeViewer.setContentProvider(fContentProvider);
        fTreeViewer.setLabelProvider(new SVDBDecoratingLabelProvider(new SVTreeLabelProvider()));
        fTreeViewer.setComparator(new ViewerComparator());
        fTreeViewer.setComparer(new IElementComparer() {
            public int hashCode(Object element) {
                return element.hashCode();
            }

            public boolean equals(Object a, Object b) {
                // Just do a simple compare
                return (a == b);
            }
        });

        fTreeViewer.setInput(fSVDBFile);
        fTreeViewer.expandAll();

        fTreeViewer.addDoubleClickListener(new IDoubleClickListener() {
            public void doubleClick(DoubleClickEvent event) {
                IStructuredSelection sel = (IStructuredSelection) event.getSelection();
                if (sel.getFirstElement() instanceof ISVDBItemBase) {
                    ISVDBItemBase n = (ISVDBItemBase) sel.getFirstElement();
                    fEditor.setSelection(n, false);
                    close();
                }
            }
        });

        return fTreeViewer;
    }

    @Override
    protected String getId() {
        return "net.sf.sveditor.ui.text.QuickOutline"; //$NON-NLS-1$
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void setInput(Object information) {
        if (information == null) {
            fEditor = null;
            fSVDBFile = null;
        } else if (information instanceof SVEditor) {
            fEditor = (SVEditor) information;
            fSVDBFile = fEditor.getSVDBFile();
            fTreeViewer.setInput(fSVDBFile);
            fTreeViewer.expandAll();
        }
    }

}