plugins/org.eclipse.m2m.qvt.oml.editor.ui/src/org/eclipse/m2m/internal/qvt/oml/editor/ui/quickoutline/QvtOutlineInformationControl.java

/*******************************************************************************
 * Copyright (c) 2013, 2018 S. Boyko and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v2.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v20.html
 *   
 * Contributors:
 *     Sergey Boyko - initial API and implementation
 *******************************************************************************/
package org.eclipse.m2m.internal.qvt.oml.editor.ui.quickoutline;

import java.text.MessageFormat;

import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.Separator;
import org.eclipse.jface.text.source.ISourceViewer;
import org.eclipse.jface.viewers.AbstractTreeViewer;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.m2m.internal.qvt.oml.cst.ContextualPropertyCS;
import org.eclipse.m2m.internal.qvt.oml.cst.MappingDeclarationCS;
import org.eclipse.m2m.internal.qvt.oml.cst.MappingMethodCS;
import org.eclipse.m2m.internal.qvt.oml.editor.ui.QvtEditor;
import org.eclipse.ocl.cst.SimpleNameCS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyAdapter;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.ui.keys.KeySequence;
import org.eclipse.ui.keys.SWTKeySupport;

import org.eclipse.m2m.internal.qvt.oml.editor.ui.quickoutline.actions.LexicalSortingAction;
import org.eclipse.m2m.internal.qvt.oml.editor.ui.quickoutline.actions.ShowFQNAction;

public class QvtOutlineInformationControl extends AbstractInformationControl {
    private KeyAdapter myKeyAdapter;

    private OutlineContentProvider myOutlineContentProvider;
    private OutlineLabelProvider myLabelProvider;
    private OutlineSorter myOutlineSorter;

    private ShowFQNAction myShowFQNAction;
    private LexicalSortingAction myLexicalSortingAction;

    private final QvtEditor myEditor;
    private final ISourceViewer mySourceViewer;

    /**
     * Creates a new Java outline information control.
     *
     * @param parent
     * @param shellStyle
     * @param treeStyle
     * @param commandId
     * @param sourceViewer 
     * @param editor 
     */
    public QvtOutlineInformationControl(Shell parent, int shellStyle, int treeStyle, String commandId, QvtEditor editor, ISourceViewer sourceViewer) {
        super(parent, shellStyle, treeStyle, commandId, true);
        myEditor = editor;
        mySourceViewer = sourceViewer;
    }

    /**
     * {@inheritDoc}
     */
    protected Text createFilterText(Composite parent) {
        Text text= super.createFilterText(parent);
        text.addKeyListener(getKeyAdapter());
        return text;
    }

    /**
     * {@inheritDoc}
     */
    protected TreeViewer createTreeViewer(Composite parent, int style) {
        Tree tree= new Tree(parent, SWT.SINGLE | (style & ~SWT.MULTI));
        GridData gd= new GridData(GridData.FILL_BOTH);
        gd.heightHint= tree.getItemHeight() * 12;
        tree.setLayoutData(gd);

        final TreeViewer treeViewer= new TreeViewer(tree);

        myShowFQNAction = new ShowFQNAction(treeViewer, getDialogSettings());

        myLabelProvider= new OutlineLabelProvider(this);
        treeViewer.setLabelProvider(myLabelProvider);

        myLexicalSortingAction = new LexicalSortingAction(treeViewer, getDialogSettings());

        myOutlineContentProvider= new OutlineContentProvider(this, false);
        treeViewer.setContentProvider(myOutlineContentProvider);
        myOutlineSorter= new OutlineSorter(this);
        treeViewer.setComparator(myOutlineSorter);
        treeViewer.setAutoExpandLevel(AbstractTreeViewer.ALL_LEVELS);

        treeViewer.getTree().addKeyListener(getKeyAdapter());

        return treeViewer;
    }

    /**
     * {@inheritDoc}
     */
    protected String getStatusFieldText() {
        KeySequence[] sequences= getInvokingCommandKeySequences();
        if (sequences == null || sequences.length == 0)
            return ""; //$NON-NLS-1$

        String keySequence= sequences[0].format();

        if (myOutlineContentProvider.isShowingImportedMembers()) {
            return MessageFormat.format(TextMessages.QvtOutlineInformationControl_statusFieldText_hideInheritedMembers, keySequence);
        }
        return MessageFormat.format(TextMessages.QvtOutlineInformationControl_statusFieldText_showInheritedMembers, keySequence);
    }

    protected String getId() {
        return QvtOutlineInformationControl.class.getName();
    }
    
    public QvtEditor getEditor() {
        return myEditor;
    }

    public ISourceViewer getSourceViewer() {
        return mySourceViewer;
    }
    
    public ShowFQNAction getShowFQNAction() {
        return myShowFQNAction;
    }

    public LexicalSortingAction getLexicalSortingAction() {
        return myLexicalSortingAction;
    }

    /**
     * {@inheritDoc}
     */
    public void setInput(Object information) {
        inputChanged(information, information);
    }

    private KeyAdapter getKeyAdapter() {
        if (myKeyAdapter == null) {
            myKeyAdapter= new KeyAdapter() {
                public void keyPressed(KeyEvent e) {
                    int accelerator = SWTKeySupport.convertEventToUnmodifiedAccelerator(e);
                    KeySequence keySequence = KeySequence.getInstance(SWTKeySupport.convertAcceleratorToKeyStroke(accelerator));
                    KeySequence[] sequences= getInvokingCommandKeySequences();
                    if (sequences == null)
                        return;
                    for (int i= 0; i < sequences.length; i++) {
                        if (sequences[i].equals(keySequence)) {
                            e.doit= false;
                            toggleShowInheritedMembers();
                            return;
                        }
                    }
                }
            };
        }
        return myKeyAdapter;
    }

    /**
     * {@inheritDoc}
     */
    protected void handleStatusFieldClicked() {
        toggleShowInheritedMembers();
    }

    protected void toggleShowInheritedMembers() {
        myOutlineContentProvider.toggleShowInheritedMembers();
        updateStatusFieldText();
    }

    /*
     * @see org.eclipse.jdt.internal.ui.text.AbstractInformationControl#fillViewMenu(org.eclipse.jface.action.IMenuManager)
     */
    protected void fillViewMenu(IMenuManager viewMenu) {
        super.fillViewMenu(viewMenu);

        viewMenu.add(new Separator("View Options")); //$NON-NLS-1$
        viewMenu.add(myShowFQNAction);
        
        viewMenu.add(new Separator("Sorters")); //$NON-NLS-1$
        viewMenu.add(myLexicalSortingAction);
    }

    @Override
    protected boolean matchesTextPattern(Object element) {
    	if (myLabelProvider.isShowFQN()) {
			SimpleNameCS simpleNameCS = null;
    		if (element instanceof MappingMethodCS) {
    			MappingMethodCS mappingMethodCS = (MappingMethodCS) element;
    			MappingDeclarationCS mappingDeclarationCS = mappingMethodCS.getMappingDeclarationCS();
    			if (mappingDeclarationCS != null) {
    				simpleNameCS = mappingDeclarationCS.getSimpleNameCS();
    			}
    		} else if (element instanceof ContextualPropertyCS) {
    			ContextualPropertyCS contextualPropertyCS = (ContextualPropertyCS) element;
    			simpleNameCS = contextualPropertyCS.getSimpleNameCS();
    		}
			if (simpleNameCS != null) {
				String simpleName = simpleNameCS.getValue();
				return (simpleName != null) && getStringMatcher().match(simpleName);
			}
    	}
        return false;
    }
 }