net.sourceforge.ganttproject.gui.RecentColorsOption.java Source code

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Here is the source code for net.sourceforge.ganttproject.gui.RecentColorsOption.java

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/*
Copyright 2014 BarD Software s.r.o
    
This file is part of GanttProject, an opensource project management tool.
    
GanttProject 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.
    
GanttProject 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 GanttProject.  If not, see <http://www.gnu.org/licenses/>.
*/
package net.sourceforge.ganttproject.gui;

import java.awt.Color;
import java.util.List;

import biz.ganttproject.core.option.ColorOption.Util;
import biz.ganttproject.core.option.EnumerationOption;
import biz.ganttproject.core.option.GPAbstractOption;
import biz.ganttproject.core.option.ListOption;

import com.google.common.base.Function;
import com.google.common.base.Joiner;
import com.google.common.base.Objects;
import com.google.common.base.Preconditions;
import com.google.common.collect.Lists;

/**
 * Option class for working with a list of colors.
 *
 * @author dbarashev (Dmitry Barashev)
 */
public class RecentColorsOption extends GPAbstractOption<Color> implements ListOption<Color> {
    private final List<Color> myColors;

    public RecentColorsOption(List<Color> colors) {
        super("color.recent");
        myColors = Preconditions.checkNotNull(colors);
    }

    @Override
    public void setValue(Color value) {
        if (!Objects.equal(value, getValue())) {
            super.setValue(value);
        }
    }

    @Override
    public String getPersistentValue() {
        if (myColors.isEmpty()) {
            return null;
        }
        List<String> values = Lists.transform(myColors, new Function<Color, String>() {
            @Override
            public String apply(Color c) {
                return Util.getColor(c);
            }
        });
        return Joiner.on(' ').join(values);
    }

    @Override
    public void loadPersistentValue(String value) {
        myColors.clear();
        String[] values = value.trim().split("\\s+");
        for (String strColor : values) {
            Color color = Util.determineColor(strColor);
            myColors.add(color);
        }
    }

    @Override
    public void setValues(Iterable<Color> values) {
        myColors.clear();
        myColors.addAll(Lists.newArrayList(values));
    }

    @Override
    public Iterable<Color> getValues() {
        return myColors;
    }

    @Override
    public void setValueIndex(int idx) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void addValue(Color value) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void updateValue(Color oldValue, Color newValue) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void removeValueIndex(int idx) {
        throw new UnsupportedOperationException();
    }

    @Override
    public EnumerationOption asEnumerationOption() {
        throw new UnsupportedOperationException();
    }

}