EOModelResourceImportPage.java

/* ====================================================================
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 * The ObjectStyle Group Software License, Version 1.0
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 *       "This product includes software developed by the
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/*Portions of this code are Copyright Apple Inc. 2008 and licensed under the
ObjectStyle Group Software License, version 1.0.  This license from Apple
applies solely to the actual code contributed by Apple and to no other code.
No other license or rights are granted by Apple, explicitly, by implication,
by estoppel, or otherwise.  All rights reserved.*/
package org.objectstyle.wolips.wizards;

import java.io.File;
import java.util.HashMap;

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.DirectoryDialog;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.ui.dialogs.WizardDataTransferPage;
import org.eclipse.ui.model.WorkbenchContentProvider;


public class EOModelResourceImportPage extends WizardDataTransferPage {
	HashMap <String,String> _modelPaths; //key = file name, value = full path to file including file name
	Table _table;
	static Image _eomodelIcon;
	static boolean _requiresModel;

	public EOModelResourceImportPage(String name) {
		this(name, false);
	}

	public EOModelResourceImportPage(String name, boolean requiresModel) {
		super(name);
		_modelPaths = new HashMap <String, String>();
		_table = null;
		ImageDescriptor id = WizardsPlugin.EOMODEL_ICON();
		_eomodelIcon = id.createImage();
		_requiresModel = requiresModel;
	}

	//key = file name, value = full path to file including file name
	public HashMap <String,String> getModelPaths() {
		return _modelPaths;
	}

	protected void createSourceGroup(Composite parent) {

		//Selected models table
		_table = new Table (parent, SWT.VIRTUAL | SWT.FULL_SELECTION | SWT.BORDER | SWT.MULTI);
		_table.setFont(parent.getFont());
		_table.setHeaderVisible(true);
		_table.setLinesVisible(true);

		GridLayout tablelayout = new GridLayout();
		tablelayout.numColumns = 1;
		_table.setLayout(tablelayout);
		GridData data= new GridData(GridData.FILL_BOTH | GridData.GRAB_HORIZONTAL);
		data.grabExcessHorizontalSpace = true;
		_table.setLayoutData(data);

		//layout for buttons
		Composite containerGroup = new Composite(parent, SWT.NONE);
		GridLayout layout = new GridLayout();
		layout.numColumns = 3;
		containerGroup.setLayout(layout);
		containerGroup.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL));
		containerGroup.setFont(parent.getFont());

		//Browse button
		Button browseButton = new Button(containerGroup, SWT.PUSH);
		browseButton.setText("Browse...");
		browseButton.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL));
		browseButton.addSelectionListener(new EOModelSelectionListener());
		browseButton.setFont(parent.getFont());
		setButtonLayoutData(browseButton);

		//Delete button
		Button tableRemoveButton = new Button(containerGroup, SWT.PUSH);
		tableRemoveButton.setText("Delete");
		tableRemoveButton.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL));
		tableRemoveButton.addSelectionListener(new TableRemoveSelectionListener());
		tableRemoveButton.setFont(parent.getFont());
		setButtonLayoutData(tableRemoveButton);


	}

	@Override
	protected void createOptionsGroup(Composite parent) {
		//Override default options group and display nothing
	}

	/** (non-Javadoc)
	 * Method declared on IDialogPage.
	 */
	public void createControl(Composite parent) {

		initializeDialogUnits(parent);

		Composite composite = new Composite(parent, SWT.NULL);
		composite.setLayout(new GridLayout());
		composite.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_FILL
				| GridData.HORIZONTAL_ALIGN_FILL));
		composite.setSize(composite.computeSize(SWT.DEFAULT, SWT.DEFAULT));
		composite.setFont(parent.getFont());

		createSourceGroup(composite);

		createOptionsGroup(composite);

		if (_requiresModel) {
			setPageComplete(false);
		}

		restoreWidgetValues();
		updateWidgetEnablements();
		setTitle(Messages.getString("EOModelResourceImportPage.title"));
		setMessage(Messages.getString("EOModelResourceImportPage.description"));
		setErrorMessage(null);	// should not initially have error message

		setControl(composite);
	}

	protected ITreeContentProvider getFileProvider() {
		return new WorkbenchContentProvider();
	}

	protected ITreeContentProvider getFolderProvider() {
		return new WorkbenchContentProvider();
	}

	public void updatePageComplete() {
		if (_requiresModel && getModelPaths().size() > 1) {
			setMessage(null);
			setErrorMessage("EOModel not selected");
			setPageComplete(false);
		}

		setPageComplete(true);
		setMessage(Messages.getString("EOModelResourceImportPage.description"));
		setErrorMessage(null);
	}

	//Responder for EOModel browse button
	class EOModelSelectionListener extends SelectionAdapter {
		@SuppressWarnings("synthetic-access")
		public void widgetSelected(SelectionEvent e) {
			DirectoryDialog ddialog = new DirectoryDialog(getShell(), SWT.OPEN | SWT.MULTI);
			ddialog.setMessage("Select EOModel bundle");
			ddialog.open();
			String rootPath = ddialog.getFilterPath();
			System.out.println("rootPath: "+rootPath);
			if (!rootPath.endsWith(".eomodeld")){
				displayErrorDialog(rootPath+" is not an EOModel file and will not be copied");
			} else  {
				if (!_modelPaths.values().contains(rootPath)) {
					_modelPaths.put(rootPath.substring(rootPath.lastIndexOf(File.separator)), rootPath);
					updatePageComplete();
					if (_table != null) {
						TableItem item = new TableItem(_table, SWT.NATIVE);
						item.setImage(_eomodelIcon);
						item.setText(rootPath);
					}
				}
			}
		}
	}

	class TableRemoveSelectionListener extends SelectionAdapter {
		public void widgetSelected(SelectionEvent e) {
			if (_table != null) {
				int[] selectedIndexes = _table.getSelectionIndices();
				for (int anIndex : selectedIndexes) {
					TableItem anItem = _table.getItem(anIndex);
					//key is file name, so extract from path
					String key = anItem.getText().substring(anItem.getText().lastIndexOf(File.separator)+1);
					_modelPaths.remove(key);
				}
				_table.remove(selectedIndexes);
			}
		}
	}

	@Override
	protected boolean allowNewContainerName() {
		return false;
	}

	public void handleEvent(Event arg0) {
		//handle our own events
	}

}