Application: gvSIG desktop

package org.gvsig.app.project.documents.view.expressionevaluator.viewcapturerectangle;

import org.gvsig.app.ApplicationLocator;

import org.gvsig.app.ApplicationManager;

import org.gvsig.expressionevaluator.GeometryExpressionBuilder;

import org.gvsig.expressionevaluator.GeometryExpressionUtils;

import org.gvsig.expressionevaluator.GeometryExpressionBuilderHelper.GeometrySupportType;

import org.gvsig.expressionevaluator.swing.Element.CalculatedElement;

import org.gvsig.expressionevaluator.swing.Element.SimpleElement;

import org.gvsig.expressionevaluator.swing.JExpressionBuilder;

import org.gvsig.expressionevaluator.swing.spi.AbstractElement;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.swing.api.Component;

/**

 *

 * @author jjdelcerro

 */

@SuppressWarnings("UseSpecificCatch")

public class ViewCaptureRectangleElement 

        extends AbstractElement

        implements SimpleElement, CalculatedElement

{

    private ViewCaptureRectanglePanel aditionalPanel;

    public ViewCaptureRectangleElement() {

        super(

                "ViewCaptureRectangle",

                ToolsLocator.getI18nManager().getTranslation("_Capture_rectangle"), 

                "expressionbuilder-element-view-capture-bbox"

        );

    }

    @Override

    public Object getValue() {

        if (this.aditionalPanel == null) {

            return null;

        }

        try {

            Geometry geom = this.aditionalPanel.getGeometry();

            if (geom == null) {

                return null;

            }

            GeometryExpressionBuilder builder = GeometryExpressionUtils.createExpressionBuilder();

            if (this.aditionalPanel.insertAsWKT()) {

                if (this.aditionalPanel.insertAsGeometry()) {

                    builder.geometry_support_type(GeometrySupportType.WKT);

                    return builder.geometry(geom).toString();

                } else {

                    String wkt = geom.convertToWKT();

                    return "'" + wkt + "'";

                }

            } else {

                if (this.aditionalPanel.insertAsGeometry()) {

                    builder.geometry_support_type(GeometrySupportType.WKB);

                    return builder.geometry(geom).toString();

                } else {

                    byte[] wkb = geom.convertToWKB();

                    return builder.bytearray_hex(wkb);

                }

            }

        } catch (Exception ex) {

            LOGGER.warn("Can't get point value.", ex);

            return null;

        }

    }

    @Override

    public String getRenderedValue() {

        Object v = this.getValue();

        if( v == null ) {

            return super.getRenderedValue();

        }

        return v.toString();

    }

    @Override

    public Component getAditionalPanel(JExpressionBuilder expressionBuilder) {

        if (aditionalPanel == null) {

            this.aditionalPanel = new ViewCaptureRectanglePanel();

        }

        return this.aditionalPanel;

    }

    @Override

    public boolean isEnabled() {

        ApplicationManager application = ApplicationLocator.getManager();

        return ! application.getUIManager().isModalDialogShowing();

    }

}