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

Introduction

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

Source

/*******************************************************************************
 * 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.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

import com.nextep.datadesigner.exception.ErrorException;
import com.nextep.designer.ui.model.ISizedComponent;
import com.nextep.designer.ui.model.ITitleAreaComponent;
import com.nextep.designer.ui.model.IUIComponent;
import com.nextep.designer.ui.model.IUIComponentContainer;
import com.nextep.designer.ui.model.IValidatableUI;

/**
 * This class can wrap a neXtep UI component into a {@link TitleAreaDialog}.
 * This kind of wrapper is provided to abstract away dependencies to specific
 * eclipse/jface UI components, allowing neXtep UI to be reusable in different
 * contexts such as editors, wizards, dialogs, views.
 * 
 * @author Christophe Fondacci
 */
public class TitleAreaDialogWrapper extends TitleAreaDialog implements IUIComponentContainer {

    private static final Log LOGGER = LogFactory.getLog(TitleAreaDialogWrapper.class);
    private final IUIComponent component;

    public TitleAreaDialogWrapper(Shell parent, IUIComponent component, int style) {
        super(parent);
        setShellStyle(style);
        this.component = component;
        component.setUIComponentContainer(this);
    }

    @Override
    protected Control createDialogArea(Composite parent) {
        Composite c = (Composite) super.createDialogArea(parent);
        if (component instanceof ITitleAreaComponent) {
            final ITitleAreaComponent titled = (ITitleAreaComponent) component;
            if (titled.getAreaTitle() != null) {
                setTitle(titled.getAreaTitle());
            }
            if (titled.getDescription() != null) {
                setMessage(titled.getDescription());
            }
            if (titled.getImage() != null) {
                setTitleImage(titled.getImage());
            }
        }
        component.create(c);
        return c;
    }

    @Override
    protected void configureShell(Shell newShell) {
        super.configureShell(newShell);
        if (component instanceof ITitleAreaComponent) {
            final ITitleAreaComponent titled = (ITitleAreaComponent) component;
            if (titled.getAreaTitle() != null) {
                newShell.setText(titled.getAreaTitle());
            }
        }
    }

    @Override
    protected void okPressed() {
        if (component instanceof IValidatableUI) {
            ((IValidatableUI) component).validate();
        }
        super.okPressed();
    }

    @Override
    protected void cancelPressed() {
        if (component instanceof IValidatableUI) {
            ((IValidatableUI) component).cancel();
        }
        super.cancelPressed();
    }

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

    @Override
    public void run(boolean block, boolean cancelable, final IRunnableWithProgress runnable) {
        Job j = new Job("Processing") {

            @Override
            protected IStatus run(IProgressMonitor monitor) {
                try {
                    runnable.run(monitor);
                } catch (InvocationTargetException e) {
                    throw new ErrorException(e);
                } catch (InterruptedException e) {
                    throw new ErrorException(e);
                }
                return Status.OK_STATUS;
            }
        };
        j.schedule();
        if (block) {
            //
            IStatus status = null;
            final Display display = Display.getDefault();
            while (status == null) {
                while (!display.isDisposed() && display.readAndDispatch()) {
                }
                status = j.getResult();
            }
        }
    }

    @Override
    protected Point getInitialSize() {
        if (component instanceof ISizedComponent) {
            final ISizedComponent sized = (ISizedComponent) component;
            return new Point(sized.getWidth(), sized.getHeight());
        }
        return super.getInitialSize();
    }
}