ExitConnectorController.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.gui.exitconnector;

import java.awt.Point;
import javax.swing.Action;
import net.sf.gridarta.actions.ExitConnectorActions;
import net.sf.gridarta.gui.map.mapview.MapView;
import net.sf.gridarta.gui.map.mapview.MapViewManagerListener;
import net.sf.gridarta.model.archetype.Archetype;
import net.sf.gridarta.model.exitconnector.ExitConnectorModel;
import net.sf.gridarta.model.exitconnector.ExitConnectorModelListener;
import net.sf.gridarta.model.exitconnector.ExitLocation;
import net.sf.gridarta.model.gameobject.GameObject;
import net.sf.gridarta.model.maparchobject.MapArchObject;
import net.sf.gridarta.utils.EditorAction;
import net.sf.japi.swing.action.ActionMethod;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

public class ExitConnectorController<G extends GameObject<G, A, R>, A extends MapArchObject<A>, R extends Archetype<G, A, R>> implements EditorAction, MapViewManagerListener<G, A, R> {

    @NotNull
    private final ExitConnectorActions<G, A, R> exitConnectorActions;

    @Nullable
    private Action aExitCopy;

    @Nullable
    private Action aExitPaste;

    @Nullable
    private Action aExitConnect;

    @Nullable
    private MapView<G, A, R> currentMapView;

    @NotNull
    private final ExitConnectorModelListener exitConnectorModelListener = new ExitConnectorModelListener() {

        @Override
        public void exitLocationChanged(@Nullable final ExitLocation exitLocation) {
            refreshActions();
        }

        @Override
        public void pasteExitNameChanged(final boolean pasteExitName) {
            // ignore
        }

        @Override
        public void autoCreateExitChanged(final boolean pasteExitName) {
            refreshActions();
        }

        @Override
        public void exitArchetypeNameChanged(@NotNull final String exitArchetypeName) {
            // ignore
        }

    };

    public ExitConnectorController(@NotNull final ExitConnectorActions<G, A, R> exitConnectorActions, @NotNull final ExitConnectorModel exitConnectorModel) {
        this.exitConnectorActions = exitConnectorActions;
        exitConnectorModel.addExitConnectorModelListener(exitConnectorModelListener);
    }

    @ActionMethod
    public void exitCopy() {
        doExitCopy(true);
    }

    @ActionMethod
    public void exitPaste() {
        doExitPaste(true);
    }

    @ActionMethod
    public void exitConnect() {
        doExitConnect(true);
    }

    private void refreshActions() {
        if (aExitCopy != null) {
            //noinspection ConstantConditions
            aExitCopy.setEnabled(doExitCopy(false));
        }
        if (aExitPaste != null) {
            //noinspection ConstantConditions
            aExitPaste.setEnabled(doExitPaste(false));
        }
        if (aExitConnect != null) {
            //noinspection ConstantConditions
            aExitConnect.setEnabled(doExitConnect(false));
        }
    }

    private boolean doExitCopy(final boolean performAction) {
        final MapView<G, A, R> mapView = currentMapView;
        if (mapView == null) {
            // no active map view ==> no location to remember
            return false;
        }

        final Point location = mapView.getMapCursor().getLocation();
        return exitConnectorActions.doExitCopy(performAction, mapView.getMapControl(), location);
    }

    private boolean doExitPaste(final boolean performAction) {
        final MapView<G, A, R> mapView = currentMapView;
        if (mapView == null) {
            return false;
        }

        final Point targetLocation = mapView.getMapCursor().getLocation();
        return exitConnectorActions.doExitPaste(performAction, mapView.getMapControl(), targetLocation);
    }

    private boolean doExitConnect(final boolean performAction) {
        final MapView<G, A, R> mapView = currentMapView;
        if (mapView == null) {
            return false;
        }

        final Point targetLocation = mapView.getMapCursor().getLocation();
        return exitConnectorActions.doExitConnect(performAction, mapView.getMapControl(), targetLocation);
    }

    @Override
    public void setAction(@NotNull final Action action, @NotNull final String name) {
        if (name.equals("exitCopy")) {
            aExitCopy = action;
        } else if (name.equals("exitPaste")) {
            aExitPaste = action;
        } else if (name.equals("exitConnect")) {
            aExitConnect = action;
        } else {
            throw new IllegalArgumentException();
        }
        refreshActions();
    }

    @Override
    public void activeMapViewChanged(@Nullable final MapView<G, A, R> mapView) {
        currentMapView = mapView;
        refreshActions();
    }

    @Override
    public void mapViewCreated(@NotNull final MapView<G, A, R> mapView) {
        // ignore
    }

    @Override
    public void mapViewClosing(@NotNull final MapView<G, A, R> mapView) {
        // ignore
    }

}