DefaultMapControl.java

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/*
 * Gridarta MMORPG map editor for Crossfire, Daimonin and similar games.
 * Copyright (C) 2000-2015 The Gridarta Developers.
 *
 * 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 2 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.
 */

package net.sf.gridarta.model.mapcontrol;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import net.sf.gridarta.model.archetype.Archetype;
import net.sf.gridarta.model.gameobject.GameObject;
import net.sf.gridarta.model.io.MapWriter;
import net.sf.gridarta.model.maparchobject.MapArchObject;
import net.sf.gridarta.model.mapmodel.MapFile;
import net.sf.gridarta.model.mapmodel.MapModel;
import net.sf.gridarta.model.settings.ProjectSettings;
import net.sf.gridarta.utils.EventListenerList2;
import net.sf.gridarta.utils.IOUtils;
import org.jetbrains.annotations.NotNull;

public class DefaultMapControl<G extends GameObject<G, A, R>, A extends MapArchObject<A>, R extends Archetype<G, A, R>> implements MapControl<G, A, R> {

    @NotNull
    private final EventListenerList2<MapControlListener<G, A, R>> listenerList = new EventListenerList2<>(MapControlListener.class);

    private int useCounter = 1;

    private final boolean isPickmap;

    @NotNull
    private final MapModel<G, A, R> mapModel;

    @NotNull
    private final MapWriter<G, A, R> mapWriter;

    @NotNull
    private final ProjectSettings projectSettings;

    public DefaultMapControl(@NotNull final MapModel<G, A, R> mapModel, final boolean isPickmap, @NotNull final MapWriter<G, A, R> mapWriter, @NotNull final ProjectSettings projectSettings) {
        this.mapModel = mapModel;
        this.isPickmap = isPickmap;
        this.mapWriter = mapWriter;
        this.projectSettings = projectSettings;
    }

    @Override
    public void addMapControlListener(@NotNull final MapControlListener<G, A, R> listener) {
        listenerList.add(listener);
    }

    @Override
    public void removeMapControlListener(@NotNull final MapControlListener<G, A, R> listener) {
        listenerList.remove(listener);
    }

    @Override
    public void acquire() {
        useCounter++;
    }

    @Override
    public void release() {
        assert useCounter > 0;
        useCounter--;
    }

    @Override
    public int getUseCounter() {
        return useCounter;
    }

    @Override
    public boolean isPickmap() {
        return isPickmap;
    }

    private void encodeMapFile(@NotNull final File file) throws IOException {
        final File dir = file.getParentFile();
        if (dir != null && !dir.exists() && !dir.mkdirs()) {
            throw new IOException("cannot create directory: " + dir);
        }
        try (OutputStream outputStream = new FileOutputStream(file)) {
            try (Writer writer = new OutputStreamWriter(outputStream, IOUtils.MAP_ENCODING)) {
                mapWriter.encodeMapFile(mapModel, writer);
            }
        }
    }

    @Override
    public void save() throws IOException {
        final MapFile mapFile = mapModel.getMapFile();
        if (mapFile == null) {
            throw new IllegalStateException();
        }
        save(mapFile);
    }

    @Override
    public void saveAs(@NotNull final MapFile mapFile) throws IOException {
        mapModel.setMapFile(mapFile);
        save(mapFile);
    }

    private void save(@NotNull final MapFile mapFile) throws IOException {
        if (mapModel.isModified()) {
            mapModel.getMapArchObject().updateModifiedAttribute(projectSettings.getUserName());
        }
        encodeMapFile(mapFile.getFile());
        mapModel.resetModified();
        for (final MapControlListener<G, A, R> listener : listenerList.getListeners()) {
            listener.saved(this);
        }
    }

    @NotNull
    @Override
    public MapModel<G, A, R> getMapModel() {
        return mapModel;
    }

}