cn.edu.pku.ogeditor.properties.DescriptionSection.java Source code

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Here is the source code for cn.edu.pku.ogeditor.properties.DescriptionSection.java

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/*******************************************************************************
 * 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:
?*******************************************************************************/
package cn.edu.pku.ogeditor.properties;

import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.views.properties.tabbed.AbstractPropertySection;
import org.eclipse.ui.views.properties.tabbed.ITabbedPropertyConstants;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage;

import cn.edu.pku.ogeditor.ShapesEditor;
import cn.edu.pku.ogeditor.parts.ConnectionEditPart;
import cn.edu.pku.ogeditor.parts.ShapeEditPart;

/**
 * description section in property sheet.
 * @author Xueyuan Xing
 */
public class DescriptionSection extends AbstractPropertySection {

    public DescriptionSection() {
        // TODO Auto-generated constructor stub
    }

    private Text descriptionText;

    private ShapeEditPart sep;
    private ConnectionEditPart cep;
    private boolean isSep;
    private ModifyListener listener = new ModifyListener() {

        public void modifyText(ModifyEvent arg0) {
            if (!ShapesEditor.myselfShapesEditor.isDirty()) {
                ShapesEditor.myselfShapesEditor.setDirty(true);
            }

        }
    };

    public void setInput(IWorkbenchPart part, ISelection selection) {
        super.setInput(part, selection);
        if (!(selection instanceof IStructuredSelection)) {
            return;
        }
        Object input = ((IStructuredSelection) selection).getFirstElement();
        if (input instanceof ShapeEditPart) {
            isSep = true;
            sep = (ShapeEditPart) input;
        } else if (input instanceof ConnectionEditPart) {
            isSep = false;
            cep = (ConnectionEditPart) input;
        }
    }

    public void createControls(Composite parent, TabbedPropertySheetPage aTabbedPropertySheetPage) {
        super.createControls(parent, aTabbedPropertySheetPage);
        Composite composite = getWidgetFactory().createFlatFormComposite(parent);
        FormData data;
        // composite.setLayout(new FillLayout());

        descriptionText = getWidgetFactory().createText(composite, "",
                SWT.WRAP | SWT.MULTI | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL); //$NON-NLS-1$
        data = new FormData();
        data.left = new FormAttachment(0, ITabbedPropertyConstants.HSPACE);
        data.right = new FormAttachment(100, 0);
        data.top = new FormAttachment(0, ITabbedPropertyConstants.VSPACE);
        data.height = 100;
        descriptionText.setLayoutData(data);
        descriptionText.addModifyListener(listener);
        //
        // CLabel labelLabel = getWidgetFactory()
        //      .createCLabel(composite, "description:"); //$NON-NLS-1$
        // data = new FormData();
        // data.left = new FormAttachment(0, 0);
        // data.right = new FormAttachment(descriptionText,
        // -ITabbedPropertyConstants.HSPACE);
        // data.top = new FormAttachment(descriptionText, 0, SWT.CENTER);
        // labelLabel.setLayoutData(data);
        Button button = getWidgetFactory().createButton(composite, IDialogConstants.OK_LABEL, SWT.PUSH);
        data = new FormData();
        // data.left = new FormAttachment(0,ITabbedPropertyConstants.HSPACE);
        data.right = new FormAttachment(100, 0);
        data.top = new FormAttachment(descriptionText, ITabbedPropertyConstants.VSPACE);
        data.width = STANDARD_LABEL_WIDTH;
        button.setLayoutData(data);
        button.addSelectionListener(new ButtonListener());
    }

    public void refresh() {
        descriptionText.removeModifyListener(listener);
        descriptionText
                .setText(isSep ? sep.getCastedModel().getDescription() : cep.getCastedModel().getDescription());
        descriptionText.addModifyListener(listener);
    }

    private class ButtonListener extends SelectionAdapter {

        @Override
        public void widgetSelected(SelectionEvent e) {
            if (isSep)
                sep.getCastedModel().setDescription(descriptionText.getText());
            else
                cep.getCastedModel().setDescription(descriptionText.getText());
            ShapesEditor.myselfShapesEditor.doSave(null);
            ShapesEditor.myselfShapesEditor.setDirty(false);
        }

    }
}