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OptaPlanner solves planning problems. This lightweight, embeddable planning engine implements powerful and scalable algorithms to optimize business resource scheduling and planning. This module contains the examples which demonstrate how to use it in a normal Java application.

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/*
 * Copyright 2010 JBoss Inc
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.optaplanner.examples.common.swingui;

import java.awt.Dimension;
import java.awt.Rectangle;
import javax.swing.JPanel;
import javax.swing.JViewport;
import javax.swing.Scrollable;

import org.optaplanner.core.api.domain.solution.Solution;
import org.optaplanner.examples.common.business.SolutionBusiness;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public abstract class SolutionPanel extends JPanel implements Scrollable {

    protected static final String USAGE_EXPLANATION_PATH = "/org/optaplanner/examples/common/swingui/exampleUsageExplanation.png";
    // Size fits into screen resolution 1024*768
    public static final Dimension PREFERRED_SCROLLABLE_VIEWPORT_SIZE = new Dimension(800, 600);

    protected final transient Logger logger = LoggerFactory.getLogger(getClass());

    protected SolverAndPersistenceFrame solverAndPersistenceFrame;
    protected SolutionBusiness solutionBusiness;

    public SolverAndPersistenceFrame getSolverAndPersistenceFrame() {
        return solverAndPersistenceFrame;
    }

    public void setSolverAndPersistenceFrame(SolverAndPersistenceFrame solverAndPersistenceFrame) {
        this.solverAndPersistenceFrame = solverAndPersistenceFrame;
    }

    public SolutionBusiness getSolutionBusiness() {
        return solutionBusiness;
    }

    public void setSolutionBusiness(SolutionBusiness solutionBusiness) {
        this.solutionBusiness = solutionBusiness;
    }

    public String getUsageExplanationPath() {
        return USAGE_EXPLANATION_PATH;
    }

    public boolean isWrapInScrollPane() {
        return true;
    }

    public boolean isRefreshScreenDuringSolving() {
        return false;
    }

    public abstract void resetPanel(Solution solution);

    public void updatePanel(Solution solution) {
        resetPanel(solution);
    }

    public void setSolvingState(boolean solving) {
        // Hook method
    }

    public Dimension getPreferredScrollableViewportSize() {
        return PREFERRED_SCROLLABLE_VIEWPORT_SIZE;
    }

    public int getScrollableUnitIncrement(Rectangle visibleRect, int orientation, int direction) {
        return 20;
    }

    public int getScrollableBlockIncrement(Rectangle visibleRect, int orientation, int direction) {
        return 20;
    }

    public boolean getScrollableTracksViewportWidth() {
        if (getParent() instanceof JViewport) {
            return (((JViewport) getParent()).getWidth() > getPreferredSize().width);
        }
        return false;
    }

    public boolean getScrollableTracksViewportHeight() {
        if (getParent() instanceof JViewport) {
            return (((JViewport) getParent()).getHeight() > getPreferredSize().height);
        }
        return false;
    }

}