jp.sourceforge.tmdmaker.ui.views.properties.DiagramPropertySource.java Source code

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Here is the source code for jp.sourceforge.tmdmaker.ui.views.properties.DiagramPropertySource.java

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/*
 * Copyright 2009-2016 TMD-Maker Project <http://tmdmaker.osdn.jp/>
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package jp.sourceforge.tmdmaker.ui.views.properties;

import jp.sourceforge.tmdmaker.Messages;
import jp.sourceforge.tmdmaker.TMDEditor;
import jp.sourceforge.tmdmaker.extension.DialectProviderFactory;
import jp.sourceforge.tmdmaker.model.Diagram;

import org.apache.commons.lang.ArrayUtils;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.commands.CommandStack;
import org.eclipse.ui.views.properties.ComboBoxPropertyDescriptor;
import org.eclipse.ui.views.properties.IPropertyDescriptor;
import org.eclipse.ui.views.properties.TextPropertyDescriptor;

/**
 * Diagram property source.
 *
 */
public class DiagramPropertySource extends AbstractPropertySource {

    private static final String NAME = "Name"; //$NON-NLS-1$
    private static final String DATABASE_NAME = "DatabaseName"; //$NON-NLS-1$
    private static final String DESCRIPTION = "Description"; //$NON-NLS-1$
    Diagram diagram;
    CommandStack stack;

    private String[] dataBaseList;

    public DiagramPropertySource(TMDEditor editor, Diagram diagram) {
        super(editor);
        this.stack = editor.getViewer().getEditDomain().getCommandStack();
        this.diagram = diagram;
        this.dataBaseList = DialectProviderFactory.getDialectProvider().getDatabaseList().toArray(new String[0]);
    }

    @Override
    public Object getEditableValue() {
        return this.diagram;
    }

    @Override
    public IPropertyDescriptor[] getPropertyDescriptors() {
        return new IPropertyDescriptor[] { new TextPropertyDescriptor(NAME, Messages.ModelName),
                new ComboBoxPropertyDescriptor(DATABASE_NAME, Messages.DatabaseName, dataBaseList),
                new TextPropertyDescriptor(DESCRIPTION, Messages.Description) };
    }

    @Override
    public Object getPropertyValue(Object id) {
        if (id.equals(NAME)) {
            return diagram.getName() != null ? diagram.getName() : "";
        } else if (id.equals(DATABASE_NAME)) {
            return ArrayUtils.indexOf(dataBaseList, diagram.getDatabaseName());
        } else if (id.equals(DESCRIPTION)) {
            return diagram.getDescription() != null ? diagram.getDescription() : "";
        }
        return null;
    }

    @Override
    public boolean isPropertySet(Object id) {
        if (id.equals(NAME) || id.equals(DATABASE_NAME) || id.equals(DESCRIPTION)) {
            return true;
        }
        return false;
    }

    @Override
    public void resetPropertyValue(Object id) {
    }

    @Override
    public void setPropertyValue(Object id, Object value) {
        stack.execute(createSetPropertyCommand(id, value));
    }

    @Override
    protected Command createSetPropertyCommand(Object id, Object value) {
        return new DiagramPropertyChangeCommand(this.diagram, id, value);
    }

    private static class DiagramPropertyChangeCommand extends Command {

        /**  */
        private Diagram diagram;
        private Object newValue;
        private Object oldValue;
        private Object id;
        private String[] dataBaseList;

        public DiagramPropertyChangeCommand(Diagram diagram, Object id, Object newValue) {
            this.id = id;
            this.diagram = diagram;
            this.newValue = newValue;
            this.dataBaseList = DialectProviderFactory.getDialectProvider().getDatabaseList()
                    .toArray(new String[0]);
            if (id.equals(NAME)) {
                oldValue = diagram.getName();
            }
            if (id.equals(DESCRIPTION)) {
                oldValue = diagram.getDescription();
            }
            if (id.equals(DATABASE_NAME)) {
                oldValue = diagram.getDatabaseName();
            }
        }

        /**
         * {@inheritDoc}
         * 
         * @see org.eclipse.gef.commands.Command#execute()
         */
        @Override
        public void execute() {
            if (id.equals(NAME)) {
                diagram.setName((String) newValue);
            }
            if (id.equals(DESCRIPTION)) {
                diagram.setDescription((String) newValue);
            }
            if (id.equals(DATABASE_NAME)) {
                String db_name = dataBaseList[(Integer) newValue];
                diagram.setDatabaseName((String) db_name);
            }
        }

        /**
         * {@inheritDoc}
         * 
         * @see org.eclipse.gef.commands.Command#undo()
         */
        @Override
        public void undo() {
            if (id.equals(NAME)) {
                diagram.setName((String) oldValue);
            }
            if (id.equals(DESCRIPTION)) {
                diagram.setDescription((String) oldValue);
            }
            if (id.equals(DATABASE_NAME)) {
                diagram.setDatabaseName((String) oldValue);
            }
        }
    }
}