deletecditem.java

CD Manager光盘资料管家婆源代码

package com.galaxyworkstation.view;

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.SashForm;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.MessageBox;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeItem;

import com.galaxyworkstation.control.CDManager;


/**
 * 
 * The DeleteCDItem class which is to delete a TreeItem of CD in the tree
 *
 */
public class DeleteCDItem implements TheObject {
	
	TreeItem treeItem;
	
	/**
	 * The initial method is the main method of the class
	 */
	public void initial() {
		
		MessageBox msgBox = new MessageBox(treeItem.getParent().getShell(),SWT.ICON_WARNING|SWT.YES|SWT.NO);
		msgBox.setText("警告");
		msgBox.setMessage("确定删除光盘?");
		int choice = msgBox.open();
		if(choice == SWT.YES){
			Tree tree = treeItem.getParent();
			if(!treeItem.equals(tree.getItem(0)))
				if(treeItem.getItemCount() == 0){
					tree.setSelection(treeItem.getParentItem());
					TheObject renameItem = new RenameAlbumItem();
					renameItem.setObject(treeItem.getParent());
					CDManager.action.deleteCD(MainGUI.CDMap.get(treeItem));
					((Tree)((Composite)((SashForm)((SashForm)((Group)treeItem.getDisplay().getShells()[0].getChildren()[1])
		                     .getChildren()[0]).getChildren()[0]).getChildren()[1])
		                     .getChildren()[0]).removeAll();
					((Table)((Composite)((SashForm)((SashForm)((Group)treeItem.getDisplay().getShells()[0].getChildren()[1])
							 .getChildren()[0]).getChildren()[1]).getChildren()[0])
					         .getChildren()[0]).removeAll();
					                					
					MainGUI.CDMap.remove(treeItem);
					MainGUI.documentMap.clear();
					MainGUI.tableMap.clear();
					System.err.println();
					tree.setSelection(treeItem.getParentItem());
					treeItem.dispose();
				}
		}
		else if(choice == SWT.NO){
			return;
		}
		
	}

	/**
	 * The setObject method which is to set the parent TreeItem
	 */
	public void setObject(Object object) {
		
		this.treeItem = (TreeItem)object;
	}

}