com.threerings.cast.builder.SpritePanel Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of nenya Show documentation
Facilities for making networked multiplayer games.
The newest version!
//
// Nenya library - tools for developing networked games
// Copyright (C) 2002-2012 Three Rings Design, Inc., All Rights Reserved
// https://github.com/threerings/nenya
//
// This library is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation; either version 2.1 of the License, or
// (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

package com.threerings.cast.builder;

import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;

import javax.swing.JPanel;

import com.threerings.util.DirectionCodes;

import com.threerings.cast.CharacterDescriptor;
import com.threerings.cast.CharacterManager;
import com.threerings.cast.CharacterSprite;
import com.threerings.cast.StandardActions;

/**
 * The sprite panel displays a character sprite centered in the panel
 * suitable for user perusal.
 */
public class SpritePanel extends JPanel
    implements DirectionCodes, BuilderModelListener
{
    /**
     * Constructs the sprite panel.
     */
    public SpritePanel (CharacterManager charmgr, BuilderModel model)
    {
        // save off references
        _charmgr = charmgr;
        _model = model;

        // listen to the builder model so that we can update the
        // sprite when a new component is selected
        _model.addListener(this);
    }

    @Override
    public void paintComponent (Graphics g)
    {
        super.paintComponent(g);
        Graphics2D gfx = (Graphics2D)g;

        if (_sprite != null) {
            // render the sprite
            _sprite.paint(gfx);
        }
    }

    @Override
    public void doLayout ()
    {
        super.doLayout();
        generateSprite();
        centerSprite();
    }

    // documentation inherited
    public void modelChanged (int event)
    {
        if (event == COMPONENT_CHANGED) {
            generateSprite();
        }
    }

    /**
     * Generates a new character sprite for display to reflect the
     * currently selected character components.
     */
    protected void generateSprite ()
    {
        int components[] = _model.getSelectedComponents();
        CharacterDescriptor desc = new CharacterDescriptor(components, null);
        CharacterSprite sprite = _charmgr.getCharacter(desc);
        setSprite(sprite);
    }

    /**
     * Sets the sprite to be displayed.
     */
    protected void setSprite (CharacterSprite sprite)
    {
        sprite.setActionSequence(StandardActions.STANDING);
        sprite.setOrientation(WEST);
        _sprite = sprite;
        centerSprite();
        repaint();
    }

    /**
     * Sets the sprite's location to render it centered within the panel.
     */
    protected void centerSprite ()
    {
        if (_sprite != null) {
            Dimension d = getSize();
            int shei = _sprite.getHeight();
            int x = d.width / 2, y = (d.height + shei) / 2;
            _sprite.setLocation(x, y);
        }
    }

    /** The sprite displayed by the panel. */
    protected CharacterSprite _sprite;

    /** The character manager. */
    protected CharacterManager _charmgr;

    /** The builder model. */
    protected BuilderModel _model;
}