de.catma.ui.dialog.ColorField.java Source code

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Here is the source code for de.catma.ui.dialog.ColorField.java

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/*   
 *   CATMA Computer Aided Text Markup and Analysis
 *   
 *   Copyright (C) 2009-2013  University Of Hamburg
 *
 *   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, see <http://www.gnu.org/licenses/>.
 */
package de.catma.ui.dialog;

import java.util.Map;

import com.vaadin.terminal.PaintException;
import com.vaadin.terminal.PaintTarget;
import com.vaadin.ui.AbstractField;
import com.vaadin.ui.ClientWidget;

import de.catma.ui.client.ui.tagmanager.VColorField;
import de.catma.ui.client.ui.tagmanager.shared.ColorFieldMessageAttribute;

@ClientWidget(VColorField.class)
public class ColorField extends AbstractField {

    private boolean dirty;

    public ColorField(String hexColor) {
        if ((hexColor != null) && (!hexColor.isEmpty())) {
            setValue(hexColor);
        }
    }

    public ColorField() {
    }

    @Override
    public void paintContent(PaintTarget target) throws PaintException {
        super.paintContent(target);
        if ((getValue() != null) && (dirty || target.isFullRepaint())) {
            target.addAttribute(ColorFieldMessageAttribute.COLOR_SET.name(), getValue().toString());
            dirty = false;
        }
    }

    @Override
    public void changeVariables(Object source, Map<String, Object> variables) {
        super.changeVariables(source, variables);

        if (variables.containsKey(ColorFieldMessageAttribute.COLOR_SET.name())) {
            String hexColor = (String) variables.get(ColorFieldMessageAttribute.COLOR_SET.name());
            setValue(hexColor, false);
        }
    }

    @Override
    public Class<?> getType() {
        return String.class;
    }

    @Override
    public void setValue(Object newValue) throws ReadOnlyException, ConversionException {
        super.setValue(newValue, true);
        dirty = true;
    }

    public String getHexColor() {
        return getValue().toString();
    }
}