org.caleydo.view.domino.api.model.EDirection.java Source code

Introduction

Here is the source code for org.caleydo.view.domino.api.model.EDirection.java

Source

/*******************************************************************************
 * Caleydo - Visualization for Molecular Biology - http://caleydo.org
 * Copyright (c) The Caleydo Team. All rights reserved.
 * Licensed under the new BSD license, available at http://caleydo.org/license
 *******************************************************************************/
package org.caleydo.view.domino.api.model;

import org.caleydo.core.data.collection.EDimension;

import com.google.common.base.Function;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Sets;

/**
 * @author Samuel Gratzl
 *
 */
public enum EDirection {
    NORTH, EAST, SOUTH, WEST;

    public EDimension asDim() {
        return EDimension.get(isHorizontal());
    }

    /**
     * @return
     */
    public boolean isHorizontal() {
        return this == WEST || this == EAST;
    }

    public boolean isVertical() {
        return !isHorizontal();
    }

    public EDirection opposite() {
        return shift(2);
    }

    public EDirection shift(int by) {
        return EDirection.values()[(ordinal() + by) % 4];
    }

    public EDirection rot90() {
        return shift(1);
    }

    public boolean isPrimaryDirection() {
        return this == WEST || this == NORTH;
    }

    public static ImmutableSet<EDirection> primaries() {
        return Sets.immutableEnumSet(WEST, NORTH);
    }

    /**
     * @param dimension
     * @return
     */
    public int asInt(EDimension dim) {
        switch (this) {
        case NORTH:
            return dim.select(0, -1);
        case SOUTH:
            return dim.select(0, 1);
        case WEST:
            return dim.select(-1, 0);
        case EAST:
            return dim.select(1, 0);
        }
        throw new IllegalStateException();
    }

    /**
     * @return a set of all directions within in the given dimension
     */
    public static ImmutableSet<EDirection> get(EDimension dim) {
        if (dim.isHorizontal())
            return Sets.immutableEnumSet(WEST, EAST);
        else
            return Sets.immutableEnumSet(NORTH, SOUTH);
    }

    /**
     * @return a set of all directions within in the given dimension
     */
    public static EDirection getPrimary(EDimension dim) {
        if (dim.isHorizontal())
            return WEST;
        else
            return NORTH;
    }

    public static Function<EDirection, EDirection> TO_OPPOSITE = new Function<EDirection, EDirection>() {
        @Override
        public EDirection apply(EDirection input) {
            return input.opposite();
        }
    };
}