com.nextep.designer.ui.dialogs.WizardPageWrapper.java Source code

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Here is the source code for com.nextep.designer.ui.dialogs.WizardPageWrapper.java

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/*******************************************************************************
 * Copyright (c) 2011 neXtep Software and contributors.
 * All rights reserved.
 *
 * This file is part of neXtep designer.
 *
 * NeXtep designer is free software: you can redistribute it 
 * and/or modify it under the terms of the GNU General Public 
 * License as published by the Free Software Foundation, either 
 * version 3 of the License, or any later version.
 *
 * NeXtep designer is distributed in the hope that it will be 
 * useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Contributors:
 *     neXtep Softwares - initial API and implementation
 *******************************************************************************/
package com.nextep.designer.ui.dialogs;

import java.lang.reflect.InvocationTargetException;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.wizard.IWizardPage;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
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 com.nextep.datadesigner.exception.ErrorException;
import com.nextep.datadesigner.gui.model.IDisplayConnector;
import com.nextep.designer.ui.model.ITitleAreaComponent;
import com.nextep.designer.ui.model.IUIComponent;
import com.nextep.designer.ui.model.IUIComponentContainer;

/**
 * This wrapper can adapt a neXtep {@link IUIComponent} into a {@link IWizardPage}.
 * 
 * @author Christophe Fondacci
 */
public class WizardPageWrapper extends WizardPage implements IUIComponentContainer {

    private IUIComponent component;
    private Control control;

    public WizardPageWrapper(IUIComponent component) {
        super(component.toString());
        this.component = component;
        if (component instanceof ITitleAreaComponent) {
            final ITitleAreaComponent titled = (ITitleAreaComponent) component;
            setTitle(titled.getAreaTitle());
            setMessage(titled.getDescription());
            if (titled.getImage() != null) {
                setImageDescriptor(ImageDescriptor.createFromImage(titled.getImage()));
            }
        } else if (component instanceof IDisplayConnector) {
            // Compatibility for pre-1.0.5 connectors
            final IDisplayConnector connector = (IDisplayConnector) component;
            setTitle(connector.getTitle());
            if (connector.getConnectorIcon() != null) {
                setImageDescriptor(ImageDescriptor.createFromImage(connector.getConnectorIcon()));
            }
        }
        component.setUIComponentContainer(this);
    }

    @Override
    public void createControl(Composite parent) {
        // create the top level composite for the dialog area
        Composite composite = new Composite(parent, SWT.NONE);
        GridLayout layout = new GridLayout();
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        layout.verticalSpacing = 0;
        layout.horizontalSpacing = 0;
        composite.setLayout(layout);
        composite.setLayoutData(new GridData(GridData.FILL_BOTH));

        control = component.create(composite);
        control.setLayoutData(new GridData(GridData.FILL_BOTH));
        setControl(composite);
    }

    @Override
    public IUIComponent getUIComponent() {
        return component;
    }

    @Override
    public void run(boolean block, boolean cancelable, IRunnableWithProgress runnable) {

        try {
            getContainer().run(!block, cancelable, runnable);
        } catch (InvocationTargetException e) {
            throw new ErrorException(e);
        } catch (InterruptedException e) {
            throw new ErrorException(e);
        }
    }
}