ArchetypeChooserModel.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.archetypechooser;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
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.utils.EventListenerList2;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

public class ArchetypeChooserModel<G extends GameObject<G, A, R>, A extends MapArchObject<A>, R extends Archetype<G, A, R>> implements Serializable {

    private static final long serialVersionUID = 1L;

    @NotNull
    private final List<ArchetypeChooserPanel<G, A, R>> panels = new ArrayList<>();

    @Nullable
    private ArchetypeChooserPanel<G, A, R> selectedPanel;

    @Nullable
    private Integer direction;

    @NotNull
    private DisplayMode<G, A, R> displayMode;

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

    @NotNull
    private final transient ArchetypeChooserPanelListener<G, A, R> archetypeChooserPanelListener = new ArchetypeChooserPanelListener<G, A, R>() {

        @Override
        public void selectedFolderChanged(@NotNull final ArchetypeChooserFolder<G, A, R> selectedFolder) {
            fireSelectedFolderChanged(selectedFolder);
            //not necessary as an archetype changed event will follow:
            //fireSelectedArchetypeChanged(selectedFolder.getSelectedArchetype());
        }

        @Override
        public void selectedArchetypeChanged(@Nullable final R selectedArchetype) {
            fireSelectedArchetypeChanged(selectedArchetype);
        }

    };

    public void addArchetypeChooserModelListener(@NotNull final ArchetypeChooserModelListener<G, A, R> listener) {
        listeners.add(listener);
    }

    public void removeArchetypeChooserModelListener(@NotNull final ArchetypeChooserModelListener<G, A, R> listener) {
        listeners.remove(listener);
    }

    @NotNull
    public Iterable<ArchetypeChooserPanel<G, A, R>> getPanels() {
        return Collections.unmodifiableList(panels);
    }

    public void addArchetype(@NotNull final String panel, @NotNull final String folder, @NotNull final R archetype) {
        getPanel(panel).addArchetype(folder, archetype);
    }

    @NotNull
    public ArchetypeChooserPanel<G, A, R> getPanel(@NotNull final String panelName) {
        for (final ArchetypeChooserPanel<G, A, R> panel : panels) {
            if (panel.getName().equals(panelName)) {
                return panel;
            }
        }

        final ArchetypeChooserPanel<G, A, R> panel = new ArchetypeChooserPanel<>(panelName);
        panels.add(panel);
        if (selectedPanel == null) {
            setSelectedPanel(panel);
        }
        return panel;
    }

    @Nullable
    public ArchetypeChooserPanel<G, A, R> getSelectedPanel() {
        return selectedPanel;
    }

    @SuppressWarnings("NullableProblems")
    public void setSelectedPanel(@NotNull final ArchetypeChooserPanel<G, A, R> selectedPanel) {
        if (!panels.contains(selectedPanel)) {
            throw new IllegalArgumentException("selected panel " + selectedPanel.getName() + " is not part of the model");
        }

        if (this.selectedPanel == selectedPanel) {
            return;
        }

        if (this.selectedPanel != null) {
            this.selectedPanel.removeArchetypeChooserPanelListener(archetypeChooserPanelListener);
        }
        this.selectedPanel = selectedPanel;
        this.selectedPanel.addArchetypeChooserPanelListener(archetypeChooserPanelListener);

        for (final ArchetypeChooserModelListener<G, A, R> listener : listeners.getListeners()) {
            listener.selectedPanelChanged(selectedPanel);
        }
        final ArchetypeChooserFolder<G, A, R> selectedFolder = selectedPanel.getSelectedFolder();
        fireSelectedFolderChanged(selectedFolder);
        fireSelectedArchetypeChanged(selectedFolder.getSelectedArchetype());
    }

    @Nullable
    public Integer getDirection() {
        return direction;
    }

    public void setDirection(@Nullable final Integer direction) {
        if (this.direction == null) {
            if (direction == null) {
                return;
            }
        } else {
            if (this.direction.equals(direction)) {
                return;
            }
        }

        this.direction = direction;
        for (final ArchetypeChooserModelListener<G, A, R> listener : listeners.getListeners()) {
            listener.directionChanged(direction);
        }
    }

    @NotNull
    public DisplayMode<G, A, R> getDisplayMode() {
        return displayMode;
    }

    public void setDisplayMode(@NotNull final DisplayMode<G, A, R> displayMode) {
        if (this.displayMode == displayMode) {
            return;
        }

        this.displayMode = displayMode;
        fireDisplayObjectNamesChangedEvent();
    }

    private void fireSelectedFolderChanged(@NotNull final ArchetypeChooserFolder<G, A, R> selectedFolder) {
        for (final ArchetypeChooserModelListener<G, A, R> listener : listeners.getListeners()) {
            listener.selectedFolderChanged(selectedFolder);
        }
    }

    private void fireSelectedArchetypeChanged(@Nullable final R selectedArchetype) {
        for (final ArchetypeChooserModelListener<G, A, R> listener : listeners.getListeners()) {
            listener.selectedArchetypeChanged(selectedArchetype);
        }
    }

    private void fireDisplayObjectNamesChangedEvent() {
        for (final ArchetypeChooserModelListener<G, A, R> listener : listeners.getListeners()) {
            listener.displayModeChanged(displayMode);
        }
    }

}