nfr_backpanel.java

用swt作的一个类似飞鸽一样的局域网通信工具

package view.receiver;

import java.net.Socket;
import java.util.ArrayList;
import java.util.Iterator;

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.ScrolledComposite;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;

public class NFR_BackPanel extends Composite {

	private ScrolledComposite scrolledComposite = null;
	private Composite composite = null;
	private ArrayList nfhi_List = new ArrayList();  //  @jve:decl-index=0:

	/**
	 * This method initializes scrolledComposite	
	 *
	 */
	private void createScrolledComposite() {
		scrolledComposite = new ScrolledComposite(this, SWT.V_SCROLL | SWT.H_SCROLL| SWT.BORDER );
		scrolledComposite.setExpandHorizontal(true);
		scrolledComposite.setExpandVertical(true);
//		scrolledComposite.setAlwaysShowScrollBars(false);
		createComposite();
		scrolledComposite.setContent(this.composite);
		scrolledComposite.setLayout(new FillLayout());
		scrolledComposite.setMinSize(composite.computeSize(SWT.DEFAULT,SWT.DEFAULT));
	}
	
	public void thisDispose(){
		if (nfhi_List!=null){
			Iterator i = nfhi_List.iterator();
			while(i.hasNext()){
				NFR_FileHandleItem NFR = (NFR_FileHandleItem)i.next();
				if (!NFR.isDisposed()){
					NFR.thisDispose();
				}
			}
		}
		if ((scrolledComposite!=null)&&!scrolledComposite.isDisposed()) scrolledComposite.dispose();
		if ((composite!=null)&&!composite.isDisposed()) composite.dispose();
		this.dispose();
		free();
	}
	protected void free(){
		this.composite = null;
		this.nfhi_List = null;
		this.scrolledComposite = null;
	}
	
	public NFR_FileHandleItem addNFR_FileHandleItem(int hashFile, String filename, long filesize, String type, Socket socket){
		NFR_FileHandleItem nfhi = new NFR_FileHandleItem(composite,SWT.NONE,socket);
		nfhi_List.add(nfhi);
		nfhi.setFileName(filename);
		nfhi.setFileSize(filesize);
		nfhi.setHashFile(hashFile);
		nfhi.setType(type);
		composite.pack();
		scrolledComposite.setMinSize(composite.computeSize(SWT.DEFAULT,SWT.DEFAULT));
		return(nfhi);
	}
	
	
	private void createComposite() {
		composite = new Composite(scrolledComposite, SWT.NONE);
		GridLayout layout = new GridLayout();
		layout.numColumns = 1;
		layout.marginHeight = 0;
		layout.marginWidth = 0;
		layout.verticalSpacing = 0;
		layout.horizontalSpacing = 0;
		composite.setLayout(layout);
		composite.setBackground(new Color(Display.getCurrent(), 228, 224, 203));
		composite.setSize(composite.computeSize(SWT.DEFAULT,SWT.DEFAULT));
		
	}

	/**
	 * @param args
	 */


	public NFR_BackPanel(Composite parent, int style) {
		super(parent, style);
		initialize();
	}

	private void initialize() {
		this.setLayout(new FillLayout());
		createScrolledComposite();

	}

}  //  @jve:decl-index=0:visual-constraint="10,10"