package org.eparapher.rcp.editors;

import org.eclipse.core.runtime.IPath;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.ui.IPathEditorInput;
import org.eclipse.ui.IPersistableElement;
import org.eparapher.rcp.tools.GUIIcons;


public class FileEditorInput implements IPathEditorInput {
	
	private IPath fPath;
	
	/**
	 * Creates an editor input based of the given file resource.
	 *
	 * @param path the file
	 */
	public FileEditorInput(IPath path) {
		if (path == null) {
			throw new IllegalArgumentException();
		}
		this.fPath = path;
	}
	
	/*
	 * @see java.lang.Object#hashCode()
	 */
	public int hashCode() {
		return fPath.hashCode();
	}
	
	/*
	 * @see java.lang.Object#equals(java.lang.Object)
	 */
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (!(obj instanceof FileEditorInput))
			return false;
		FileEditorInput other = (FileEditorInput) obj;
		return fPath.equals(other.fPath);
	}
	
	/*
	 * @see org.eclipse.ui.IEditorInput#exists()
	 */
	public boolean exists() {
		return fPath.toFile().exists();
	}
	/*
	 * @see org.eclipse.ui.IEditorInput#getImageDescriptor()
	 */
	public ImageDescriptor getImageDescriptor() {
		return ImageDescriptor.createFromImage(GUIIcons.FILE_ICON_TXT);
	}

	/*
	 * @see org.eclipse.ui.IEditorInput#getName()
	 */
	public String getName() {
		return fPath.toString();
	}
	
	/*
	 * @see org.eclipse.ui.IEditorInput#getToolTipText()
	 */
	public String getToolTipText() {
		return fPath.makeRelative().toOSString();
	}
	
	/*
	 * @see org.eclipse.ui.IPathEditorInput#getPath()
	 */
	public IPath getPath() {
		return fPath;
	}

	public IPersistableElement getPersistable() {
		return null;
	}

	public Object getAdapter(Class adapter) {
		return null;
	}

}