org.eclipse.emfforms.internal.editor.ui.CreateDialog.java Source code

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Here is the source code for org.eclipse.emfforms.internal.editor.ui.CreateDialog.java

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/*******************************************************************************
 * Copyright (c) 2011-2015 EclipseSource Muenchen 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:
 * Clemens Elflein - initial API and implementation
 ******************************************************************************/
package org.eclipse.emfforms.internal.editor.ui;

import org.eclipse.emf.common.util.Diagnostic;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.util.Diagnostician;
import org.eclipse.emf.ecp.ui.view.ECPRendererException;
import org.eclipse.emf.ecp.ui.view.swt.ECPSWTViewRenderer;
import org.eclipse.emf.ecp.view.spi.model.VViewFactory;
import org.eclipse.emf.ecp.view.spi.model.VViewModelProperties;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.ScrolledComposite;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;

/**
 * The Class CreateDialog allows initializing newly created EObjects.
 * It also can be used to create an EObject and initialize it directly.
 *
 * @author Clemens Elflein
 */
public class CreateDialog extends Dialog {

    /** The new object. */
    private final EObject newObject;

    /**
     * Instantiates a new dialog.
     *
     * @param parent the parent
     * @param createdInstance an EObject to initialize
     */
    public CreateDialog(Shell parent, EObject createdInstance) {
        super(parent);
        newObject = createdInstance;
        setShellStyle(getShellStyle() | SWT.RESIZE);
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
     */
    @Override
    protected void configureShell(Shell newShell) {
        super.configureShell(newShell);
        newShell.setText("Create new " + newObject.eClass().getName());
        newShell.setMinimumSize(300, 150);
        newShell.setBackground(new Color(newShell.getDisplay(), 255, 255, 255));
        newShell.setBackgroundMode(SWT.INHERIT_FORCE);
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
     */
    @Override
    protected Control createDialogArea(Composite parent) {

        final GridData parentData = new GridData(SWT.FILL, SWT.FILL, true, true);
        parent.setLayout(new GridLayout(1, true));
        parent.setLayoutData(parentData);

        final ScrolledComposite wrapper = new ScrolledComposite(parent, SWT.V_SCROLL);
        wrapper.setExpandHorizontal(true);
        wrapper.setExpandVertical(true);
        final FillLayout wrapperLayout = new FillLayout();
        wrapperLayout.marginHeight = 10;
        wrapperLayout.marginWidth = 10;
        wrapper.setLayout(wrapperLayout);
        wrapper.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

        final Composite emfFormsParent = new Composite(wrapper, SWT.NONE);
        wrapper.setContent(emfFormsParent);
        emfFormsParent.setLayout(new GridLayout());

        try {
            final VViewModelProperties properties = VViewFactory.eINSTANCE.createViewModelLoadingProperties();
            properties.addInheritableProperty("useOnModifyDatabinding", "true");
            ECPSWTViewRenderer.INSTANCE.render(emfFormsParent, newObject, properties);
        } catch (final ECPRendererException e) {
        }

        wrapper.setMinSize(wrapper.computeSize(SWT.DEFAULT, SWT.DEFAULT));

        return parent;
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.jface.dialogs.Dialog#okPressed()
     */
    @Override
    protected void okPressed() {
        getParentShell().forceFocus();
        final Diagnostic result = Diagnostician.INSTANCE.validate(newObject);
        if (result.getSeverity() == Diagnostic.OK) {
            super.okPressed();
        } else {
            // Get the error count and create an appropriate Error message:
            final int errorCount = result.getChildren().size();

            final StringBuilder sb = new StringBuilder();

            sb.append(errorCount);
            sb.append(" ");
            sb.append(errorCount == 1 ? "error" : "errors");
            sb.append(" occured while analyzing your inputs. The following errors were found:\r\n");

            int messageCount = 1;
            for (final Diagnostic d : result.getChildren()) {
                sb.append("\r\n");
                sb.append(messageCount++);
                sb.append(". ");
                sb.append(d.getMessage());
            }

            final String errorMessage = sb.toString();

            MessageDialog.open(MessageDialog.ERROR, getParentShell(), "Error", errorMessage, SWT.NONE);
        }
    }

    /**
     * Gets the created instance or the updated one, if it was passed in the constructor.
     * All fields are initialized with user inputs
     *
     * @return the created instance
     */
    public EObject getCreatedInstance() {
        return newObject;
    }
}