ATCS/src/com/gpl/rpg/atcontentstudio/model/sprites/Spritesheet.java

package com.gpl.rpg.atcontentstudio.model.sprites;

import java.awt.Graphics;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import javax.imageio.ImageIO;
import javax.swing.tree.TreeNode;

import com.gpl.rpg.atcontentstudio.ATContentStudio;
import com.gpl.rpg.atcontentstudio.Notification;
import com.gpl.rpg.atcontentstudio.model.GameDataElement;
import com.gpl.rpg.atcontentstudio.model.GameSource.Type;
import com.gpl.rpg.atcontentstudio.model.Project;
import com.gpl.rpg.atcontentstudio.model.ProjectTreeNode;
import com.gpl.rpg.atcontentstudio.model.SaveEvent;
import com.gpl.rpg.atcontentstudio.model.gamedata.GameDataSet;

public class Spritesheet extends GameDataElement {
	
	private static final long serialVersionUID = -5981708088278528586L;
	
	public SpriteSheetSet parent;
	public File spritesheetFile;
	public int spriteWidth = 32;
	public int spriteHeight = 32;
	public String id;
	public Category category = Category.none;
	public boolean animated = false;

	public enum Category {
		none,
		monster,
		item,
		actorcondition
	};
	
	//Lazy initialization.
	public BufferedImage spritesheet = null;
	public Map<Integer, BufferedImage> cache_full_size = new LinkedHashMap<Integer, BufferedImage>();
	public Map<Integer, Image> cache_icon = new LinkedHashMap<Integer, Image>();
	
	public Spritesheet(SpriteSheetSet parent, File f) {
		this.spritesheetFile = f;
		this.id = f.getName().substring(0, f.getName().lastIndexOf("."));
		this.parent = parent;
		
		String cat = getProject().getSpritesheetsProperty("atcs.spritesheet."+this.id+".category");
		if (cat != null) {
			this.category = Category.valueOf(cat);
		}
		String sizex = getProject().getSpritesheetsProperty("atcs.spritesheet."+this.id+".sizex");
		if (sizex != null) {
			this.spriteWidth = Integer.parseInt(sizex);
		}
		String sizey = getProject().getSpritesheetsProperty("atcs.spritesheet."+this.id+".sizey");
		if (sizey != null) {
			this.spriteHeight = Integer.parseInt(sizey);
		}
		String anim = getProject().getSpritesheetsProperty("atcs.spritesheet."+this.id+".animate");
		if (anim != null) {
			this.animated = Boolean.parseBoolean(anim);
		}
	}
	
	@Override
	public Enumeration<ProjectTreeNode> children() {
		return null;
	}
	@Override
	public boolean getAllowsChildren() {
		return false;
	}
	@Override
	public TreeNode getChildAt(int arg0) {
		return null;
	}
	@Override
	public int getChildCount() {
		return 0;
	}
	@Override
	public int getIndex(TreeNode arg0) {
		return 0;
	}
	@Override
	public TreeNode getParent() {
		return parent;
	}
	@Override
	public boolean isLeaf() {
		return true;
	}
	@Override
	public void childrenAdded(List<ProjectTreeNode> path) {
		path.add(0, this);
		parent.childrenAdded(path);
	}
	@Override
	public void childrenChanged(List<ProjectTreeNode> path) {
		path.add(0, this);
		parent.childrenChanged(path);
	}
	@Override
	public void childrenRemoved(List<ProjectTreeNode> path) {
		path.add(0, this);
		parent.childrenRemoved(path);
	}
	@Override
	public void notifyCreated() {
		childrenAdded(new ArrayList<ProjectTreeNode>());
	}
	@Override
	public String getDesc() {
		return (needsSaving() ? "*" : "")+spritesheetFile.getName();
	}

	@Override
	public Project getProject() {
		return parent.getProject();
	}
	
	public int getSpriteCount() {
		if (spritesheet == null) {
			try {
				spritesheet = ImageIO.read(spritesheetFile);
			} catch (IOException e) {
				Notification.addError("Error loading image "+spritesheetFile.getAbsolutePath()+" : "+e.getMessage());
				e.printStackTrace();
				return 0;
			}
		}
		return (int) (Math.ceil(((double)spritesheet.getWidth()) / ((double)spriteWidth)) * Math.ceil(((double)spritesheet.getHeight()) / ((double)spriteHeight))); 
	}
	
	public BufferedImage getImage(int index) {
		if (spritesheet == null) {
			try {
				spritesheet = ImageIO.read(spritesheetFile);
			} catch (IOException e) {
				Notification.addError("Error loading image "+spritesheetFile.getAbsolutePath()+" : "+e.getMessage());
				e.printStackTrace();
				return null;
			}
		}
		if (cache_full_size.get(index) != null) {
			return cache_full_size.get(index);
		}
		BufferedImage result = new BufferedImage(spriteWidth, spriteHeight, BufferedImage.TYPE_INT_ARGB);
		Graphics g = result.getGraphics();
		int sx1, sy1;
		sx1 = (index * spriteWidth) % spritesheet.getWidth();
		sy1 = spriteHeight * ((index * spriteWidth) / spritesheet.getWidth());
		if (sx1 + spriteWidth > spritesheet.getWidth() || sy1 + spriteHeight > spritesheet.getHeight()) {
			g.finalize();
			return null;
		}
		g.drawImage(spritesheet, 0, 0, spriteWidth, spriteHeight, sx1, sy1, sx1 + spriteWidth, sy1 + spriteHeight, null);
		result.flush();
		g.finalize();
		cache_full_size.put(index, result);
		return result;
	}
	
	public Image getIcon(int index) {
		if (cache_icon.get(index) != null) {
			return cache_icon.get(index);
		}
		Image result = getImage(index);
		if (result == null) return null;
		result = result.getScaledInstance((int)(16*ATContentStudio.SCALING), (int)(16*ATContentStudio.SCALING), Image.SCALE_SMOOTH);
		cache_icon.put(index, result);
		return result;
	}
	
	public void clearCache() {
		cache_full_size.clear();
		cache_icon.clear();
	}
	

	@Override
	public Image getIcon() {
		return getIcon(0);
	}
	@Override
	public Image getLeafIcon() {
		return getIcon();
	}
	@Override
	public Image getClosedIcon() {return null;}
	@Override
	public Image getOpenIcon() {return null;}


	@Override
	public GameDataSet getDataSet() {
		return null;
	}
	
	@Override
	public Type getDataType() {
		return parent.getDataType();
	}
	
	@Override
	public boolean isEmpty() {
		return false;
	}
	
	@Override
	public void parse() {
		if(this.state == GameDataElement.State.init){
			this.state = GameDataElement.State.parsed;
		}
	}

	@Override
	public void link() {
		if (this.state == GameDataElement.State.init) {
			this.parse();
		}
		if(this.state == GameDataElement.State.parsed) {
			this.state = GameDataElement.State.linked;
		}
	}

	@Override
	public GameDataElement clone() {
		Spritesheet clone = new Spritesheet((SpriteSheetSet) getParent(), new File(spritesheetFile.getAbsolutePath()));
		clone.id = this.id;
		clone.animated = this.animated;
		clone.category = this.category;
		clone.spriteWidth = this.spriteWidth;
		clone.spriteHeight = this.spriteHeight;
		return clone;
	}

	@Override
	public void elementChanged(GameDataElement oldOne, GameDataElement newOne) {
		//nothing linked.
	}

	@Override
	public String getProjectFilename() {
		return spritesheetFile.getName();
	}

	@Override
	public void save() {
		if (this.category != null) getProject().setSpritesheetsProperty("atcs.spritesheet."+this.id+".category", this.category.toString());
		if (this.spriteWidth != 32) getProject().setSpritesheetsProperty("atcs.spritesheet."+this.id+".sizex", Integer.toString(this.spriteWidth));
		if (this.spriteHeight != 32) getProject().setSpritesheetsProperty("atcs.spritesheet."+this.id+".sizey", Integer.toString(this.spriteHeight));
		if (this.animated)getProject().setSpritesheetsProperty("atcs.spritesheet."+this.id+".animate", Boolean.toString(this.animated));
		getProject().save();
		
		this.state = GameDataElement.State.saved;
	}
	
	@Override
	public List<SaveEvent> attemptSave() {
		save();
		return null;
	}
}