/*
 * Copyright (c) 2014, grossmann
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * * Neither the name of the jo-widgets.org nor the
 *   names of its contributors may be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL jo-widgets.org BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */

package org.jowidgets.tools.model.tree;

import org.jowidgets.api.model.tree.ITreeNodeModel;
import org.jowidgets.api.types.CheckedState;
import org.jowidgets.util.Assert;

public abstract class AbstractTreeNodeModel<VALUE_TYPE> extends TreeNodeModelObservable implements ITreeNodeModel<VALUE_TYPE> {

    private CheckedState checkedState;

    private boolean selected;
    private boolean expanded;
    private boolean visible;

    private boolean checkable;

    public AbstractTreeNodeModel() {
        this.checkedState = CheckedState.UNCHECKED;
        this.checkable = true;
    }

    @Override
    public final boolean isSelected() {
        return selected;
    }

    @Override
    public final void setSelected(final boolean selected) {
        if (this.selected != selected) {
            this.selected = selected;
            fireSelectionChanged();
        }
    }

    @Override
    public final boolean isExpanded() {
        return expanded;
    }

    @Override
    public boolean isVisible() {
        return visible;
    }

    @Override
    public void setVisible(final boolean visible) {
        if (this.visible != visible) {
            this.visible = visible;
            fireVisibilityChanged();
        }
    }

    @Override
    public CheckedState getCheckedState() {
        return checkedState;
    }

    @Override
    public void setCheckedState(final CheckedState state) {
        Assert.paramNotNull(state, "state");
        if (!this.checkedState.equals(state)) {
            this.checkedState = state;
            fireCheckedChanged();
        }
    }

    @Override
    public void setCheckable(final boolean checkable) {
        if (this.checkable != checkable) {
            this.checkable = checkable;
            fireCheckableChanged();
        }
    }

    @Override
    public boolean isCheckable() {
        return checkable;
    }

    @Override
    public final void setExpanded(final boolean expanded) {
        if (this.expanded != expanded) {
            this.expanded = expanded;
            fireExpansionChanged();
        }
    }

}