ArchetypeChooserPanel.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.Collection;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import net.sf.gridarta.model.archetype.Archetype;
import net.sf.gridarta.model.gameobject.GameObject;
import net.sf.gridarta.model.maparchobject.MapArchObject;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
 
public class ArchetypeChooserPanel<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 String name;
 
    @NotNull
    private final List<ArchetypeChooserFolder<G, A, R>> folders = new ArrayList<>();
 
    @NotNull
    private ArchetypeChooserFolder<G, A, R> selectedFolder = new ArchetypeChooserFolder<>("all");
 
    @NotNull
    private final transient ArchetypeChooserFolderListener<G, A, R> archetypeChooserFolderListener = this::fireSelectedArchetypeChanged;
 
    @NotNull
    private final Collection<ArchetypeChooserPanelListener<G, A, R>> listeners = new CopyOnWriteArrayList<>();
 
    public ArchetypeChooserPanel(@NotNull final String name) {
        this.name = name;
        folders.add(selectedFolder);
        selectedFolder.addArchetypeChooserFolderListener(archetypeChooserFolderListener);
    }
 
    public void addArchetypeChooserPanelListener(@NotNull final ArchetypeChooserPanelListener<G, A, R> listener) {
        listeners.add(listener);
    }
 
    public void removeArchetypeChooserPanelListener(@NotNull final ArchetypeChooserPanelListener<G, A, R> listener) {
        listeners.remove(listener);
    }
 
    @NotNull
    public String getName() {
        return name;
    }
 
    @NotNull
    public List<ArchetypeChooserFolder<G, A, R>> getFolders() {
        return Collections.unmodifiableList(folders);
    }
 
    public void addArchetype(@NotNull final String folder, @NotNull final R archetype) {
        getOrCreateFolder(folder).addArchetype(archetype);
        getDefaultFolder().addArchetype(archetype);
    }
 
    @NotNull
    public ArchetypeChooserFolder<G, A, R> getDefaultFolder() {
        return folders.get(0);
    }
 
    @NotNull
    private ArchetypeChooserFolder<G, A, R> getOrCreateFolder(@NotNull final String folderName) {
        final ArchetypeChooserFolder<G, A, R> existingFolder = getFolder(folderName);
        if (existingFolder != null) {
            return existingFolder;
        }
 
        final ArchetypeChooserFolder<G, A, R> folder = new ArchetypeChooserFolder<>(folderName);
        folders.add(folder);
        return folder;
    }
 
    @Nullable
    private ArchetypeChooserFolder<G, A, R> getFolder(@NotNull final String folderName) {
        for (int i = 1; i < folders.size(); i++) {
            final ArchetypeChooserFolder<G, A, R> folder = folders.get(i);
            if (folder.getName().equals(folderName)) {
                return folder;
            }
        }
 
        return null;
    }
 
    @NotNull
    public ArchetypeChooserFolder<G, A, R> getSelectedFolder() {
        return selectedFolder;
    }
 
    public void setSelectedFolder(@NotNull final ArchetypeChooserFolder<G, A, R> selectedFolder) {
        if (!folders.contains(selectedFolder)) {
            throw new IllegalArgumentException("selected folder " + selectedFolder.getName() + " is not part of the panel");
        }
 
        if (this.selectedFolder == selectedFolder) {
            return;
        }
 
        this.selectedFolder.removeArchetypeChooserFolderListener(archetypeChooserFolderListener);
        this.selectedFolder = selectedFolder;
        this.selectedFolder.addArchetypeChooserFolderListener(archetypeChooserFolderListener);
 
        for (final ArchetypeChooserPanelListener<G, A, R> listener : listeners) {
            listener.selectedFolderChanged(selectedFolder);
        }
        fireSelectedArchetypeChanged(selectedFolder.getSelectedArchetype());
    }
 
    private void fireSelectedArchetypeChanged(@Nullable final R selectedArchetype) {
        for (final ArchetypeChooserPanelListener<G, A, R> listener : listeners) {
            listener.selectedArchetypeChanged(selectedArchetype);
        }
    }
 
}