AbstractMoveSquareAction.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.action;

import java.util.Set;
import javax.swing.Action;
import net.sf.gridarta.gui.panel.selectedsquare.SelectedSquareModel;
import net.sf.gridarta.gui.panel.selectedsquare.SelectedSquareModelListener;
import net.sf.gridarta.model.archetype.Archetype;
import net.sf.gridarta.model.gameobject.GameObject;
import net.sf.gridarta.model.maparchobject.MapArchObject;
import net.sf.gridarta.model.mapcontrol.MapControl;
import net.sf.gridarta.model.mapmanager.MapManager;
import net.sf.gridarta.model.mapmanager.MapManagerListener;
import net.sf.gridarta.model.mapmodel.MapFile;
import net.sf.gridarta.model.mapmodel.MapModel;
import net.sf.gridarta.model.mapmodel.MapModelListener;
import net.sf.gridarta.model.mapmodel.MapSquare;
import net.sf.gridarta.model.validation.ErrorCollector;
import net.sf.gridarta.utils.EditorAction;
import net.sf.gridarta.utils.Size2D;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

public abstract class AbstractMoveSquareAction<G extends GameObject<G, A, R>, A extends MapArchObject<A>, R extends Archetype<G, A, R>> implements EditorAction {

    @NotNull
    private final SelectedSquareModel<G, A, R> selectedSquareModel;

    @Nullable
    private MapModel<G, A, R> mapModel;

    @Nullable
    private Action action;

    @NotNull
    private final MapManagerListener<G, A, R> mapManagerListener = new MapManagerListener<G, A, R>() {

        @Override
        public void currentMapChanged(@Nullable final MapControl<G, A, R> mapControl) {
            setMapModel(mapControl == null ? null : mapControl.getMapModel());
        }

        @Override
        public void mapCreated(@NotNull final MapControl<G, A, R> mapControl, final boolean interactive) {
        }

        @Override
        public void mapClosing(@NotNull final MapControl<G, A, R> mapControl) {
        }

        @Override
        public void mapClosed(@NotNull final MapControl<G, A, R> mapControl) {
        }

    };

    @NotNull
    private final MapModelListener<G, A, R> mapModelListener = new MapModelListener<G, A, R>() {

        @Override
        public void mapSizeChanged(@NotNull final Size2D newSize) {
            updateAction();
        }

        @Override
        public void mapSquaresChanged(@NotNull final Set<MapSquare<G, A, R>> mapSquares) {
            if (selectedSquareModel.isSelectedMapSquares(mapSquares)) {
                updateAction();
            }
        }

        @Override
        public void mapObjectsChanged(@NotNull final Set<G> gameObjects, @NotNull final Set<G> transientGameObjects) {
            if (selectedSquareModel.isSelectedGameObjects(gameObjects) || selectedSquareModel.isSelectedGameObjects(transientGameObjects)) {
                updateAction();
            }
        }

        @Override
        public void errorsChanged(@NotNull final ErrorCollector<G, A, R> errors) {
        }

        @Override
        public void mapFileChanged(@Nullable final MapFile oldMapFile) {
        }

        @Override
        public void modifiedChanged() {
        }

    };

    @NotNull
    private final SelectedSquareModelListener<G, A, R> selectedSquareModelListener = new SelectedSquareModelListener<G, A, R>() {

        @Override
        public void selectionChanged(@Nullable final MapSquare<G, A, R> mapSquare, @Nullable final G gameObject) {
            updateAction();
        }

    };

    protected AbstractMoveSquareAction(@NotNull final SelectedSquareModel<G, A, R> selectedSquareModel, @Nullable final MapManager<G, A, R> mapManager) {
        this.selectedSquareModel = selectedSquareModel;
        selectedSquareModel.addSelectedSquareListener(selectedSquareModelListener);
        if (mapManager != null) {
            mapManager.addMapManagerListener(mapManagerListener);
        }
    }

    public boolean doAction(final boolean performAction) {
        return doAction(performAction, selectedSquareModel.getSelectedGameObject());
    }

    protected abstract boolean doAction(boolean performAction, @Nullable G gameObject);

    @Override
    public void setAction(@NotNull final Action action, @NotNull final String name) {
        this.action = action;
        updateAction();
    }

    private void updateAction() {
        if (action != null) {
            //noinspection ConstantConditions
            action.setEnabled(doAction(false));
        }
    }

    private void setMapModel(@Nullable final MapModel<G, A, R> mapModel) {
        if (this.mapModel != null) {
            this.mapModel.removeMapModelListener(mapModelListener);
        }
        this.mapModel = mapModel;
        if (this.mapModel != null) {
            this.mapModel.addMapModelListener(mapModelListener);
        }

        updateAction();
    }

}