Application: gvSIG desktop » Library: org.gvsig.tools

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * This program 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 (at your option) any later version.

 *

 * This program 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 this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.tools.dynform.services.dynformfield.Text;

import java.util.Objects;

import javax.swing.JTextArea;

import javax.swing.event.DocumentEvent;

import javax.swing.event.DocumentListener;

import org.apache.commons.lang3.StringUtils;

import org.gvsig.tools.dynform.DynFormFieldDefinition;

import org.gvsig.tools.dynform.JDynFormField;

import org.gvsig.tools.dynform.spi.DynFormSPIManager;

import org.gvsig.tools.dynform.spi.DynFormSPIManager.ComponentsFactory.ScrolledComponent;

import org.gvsig.tools.dynform.spi.dynformfield.AbstractJDynFormField;

import org.gvsig.tools.dynform.spi.dynformfield.JDynFormFieldFactory;

public class JDynFormFieldText extends AbstractJDynFormField implements JDynFormField {

    private final int CHAR_ROW_LIMIT = 3;

    private String assignedValue = null;

    private ScrolledComponent<JTextArea> textArea;

    public JDynFormFieldText(

            DynFormSPIManager serviceManager,

            DynFormSPIManager.ComponentsFactory componentsFactory,

            JDynFormFieldFactory factory,

            DynFormFieldDefinition definition,

            Object value

    ) {

        super(serviceManager, componentsFactory, factory, definition, value);

        this.assignedValue = Objects.toString(value, null);

    }

    @Override

    public Object getAssignedValue() {

        return this.assignedValue;

    }

    private JTextArea getJTextArea() {

        return this.textArea.getComponent();

    }

    @Override

    public void initComponent() {

        ScrolledComponent<JTextArea> text = this.getComponentsFactory().getJTextArea(this.getDefinition(), null);

        this.textArea = text;

        text.getComponent().getDocument().addDocumentListener(new DocumentListener() {

            @Override

            public void insertUpdate(DocumentEvent e) {

                fireFieldChangedEvent();

            }

            @Override

            public void removeUpdate(DocumentEvent e) {

                fireFieldChangedEvent();

            }

            @Override

            public void changedUpdate(DocumentEvent e) {

                fireFieldChangedEvent();

            }

        });

        this.contents = this.textArea.getScrollPane();

        this.getJTextArea().setLineWrap(true);

        this.getJTextArea().setWrapStyleWord(true);

        this.getJTextArea().setRows(getTagValueAsInt(DynFormSPIManager.TAG_DYNFORM_ROWS, CHAR_ROW_LIMIT));

        if (this.getDefinition().isReadOnly()) {

            this.getJTextArea().setEditable(false);

        }

        this.getJTextArea().addFocusListener(this);

        this.setValue(this.assignedValue);

    }

    @Override

    public void setValue(Object value) {

        String s = Objects.toString(value, "");

        this.assignedValue = Objects.toString(value, null);

        this.getJTextArea().setText(s);

        this.fixPreferredWidth(this.getJTextArea());

        this.setTranslateEmptyToNull(value == null);

    }

    @Override

    public Object getValue() {

        String s = this.getJTextArea().getText();

        if (this.translateEmptyToNull() && StringUtils.isBlank(s)) {

            return null;

        }

        return s;

    }

    @Override

    public boolean hasValidValue() {

        return true;

    }

    @Override

    public boolean isModified() {

        String value = this.getJTextArea().getText();

        String assigned = (String) getAssignedValue();

        if (StringUtils.isBlank(value)) {

            return StringUtils.isNotBlank(assigned);

        }

        return !Objects.equals(value, assigned);

    }

}