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

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2020 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.util.impl;

import org.gvsig.tools.util.Bitmask;

/**

 *

 * @author gvSIG Team

 */

public class BitmaskImpl implements Bitmask {

    protected int mask;

    public BitmaskImpl(int mask) {

        this.mask = mask;

    }

    @Override

    public int get() {

        return this.mask;

    }

    @Override

    public boolean isSetBits(int mask) {

        return (this.mask & mask) == mask;

    }

    @Override

    public boolean isSetBit(int bit) {

        return (this.mask & (1 << bit)) != 0;

    }

    @Override

    public boolean isSetAny() {

        return this.mask != 0;

    }

    @Override

    public boolean isEmpty() {

        return this.mask == 0;

    }

    @Override

    public void set(int mask) {

        this.mask = mask;

    }

    @Override

    public void setBits(int mask) {

        this.mask = this.mask | mask;

    }

    @Override

    public void setBit(int bit) {

        this.mask = this.mask | (1 << bit);

    }

    @Override

    public void clear() {

        this.mask = 0;

    }

    @Override

    public void clearBits(int mask) {

        this.mask = ~mask & this.mask;

    }

    @Override

    public void clearBit(int bit) {

        mask = ~(1 << bit) & this.mask;

    }

}

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2020 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.util;

import org.gvsig.tools.util.impl.BitmaskImpl;

/**

 *

 * @author gvSIG Team

 */

public interface Bitmask {

    public static Bitmask createBitmask(int mask) {

        return new BitmaskImpl(mask);

    }

    void clear();

    void clearBit(int bit);

    void clearBits(int mask);

    int get();

    boolean isEmpty();

    boolean isSetAny();

    boolean isSetBit(int bit);

    boolean isSetBits(int mask);

    void set(int mask);

    void setBit(int bit);

    void setBits(int mask);

}