plugins/org.eclipse.epf.authoring.ui/src/org/eclipse/epf/authoring/ui/dialogs/UserInputsDialog.java

//------------------------------------------------------------------------------
// Copyright (c) 2005, 2006 IBM Corporation and others.
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// which accompanies this distribution, and is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// Contributors:
// IBM Corporation - initial implementation
//------------------------------------------------------------------------------
package org.eclipse.epf.authoring.ui.dialogs;

import java.util.Iterator;
import java.util.List;

import org.eclipse.epf.library.edit.command.UserInput;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ComboViewer;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.FocusAdapter;
import org.eclipse.swt.events.FocusEvent;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

/**
 * This dialog acts as a input dialog during command execution  
 * based on user input and inputType dialog behaviour changes. 
 * @author Shashidhar Kannoori
 *
 */
public class UserInputsDialog extends Dialog {

	IStructuredContentProvider contentProvider;
	ILabelProvider labelProvider;
	private String title;
	private String message;
	private List userInputs;
	private boolean result = false;	
	
	public UserInputsDialog(Shell parentShell, List userInputs, 
			String title, String message){
		super(parentShell);
		this.title = title;
		this.message = message;
		this.userInputs = userInputs;
	}
	/**
	 * 
	 * @param title
	 */
	public void setTitle(String title){
		this.title = title;
	}
	/**
	 * 
	 * @param msg
	 */
	public void setMessage(String message){
		this.message = message;
	}
	
	/**
	 * 
	 */
	protected void createTreeViewer(Composite parent, UserInput userInput){
		TreeViewer viewer;
		if (!userInput.isMultiple()) {
			viewer = new TreeViewer(parent, SWT.SINGLE | SWT.H_SCROLL
					| SWT.V_SCROLL | SWT.BORDER);
		} else {
			viewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL
					| SWT.V_SCROLL | SWT.BORDER);
		}
		
		GridData spec = new GridData(GridData.FILL_BOTH);
		{
			spec.widthHint = 200;
			spec.heightHint = 200;
			spec.horizontalSpan = 3;
			viewer.getControl().setLayoutData(spec);
		}
		viewer.addSelectionChangedListener(new ISelectionChangedListener() {
		
			public void selectionChanged(SelectionChangedEvent event) {
				// TODO Auto-generated method stub
		
			}
		
		});
		
		if(viewer != null){
			viewer.setLabelProvider(labelProvider);
			if(contentProvider != null){
				viewer.setContentProvider(contentProvider);
			}else{
				viewer.setContentProvider(new ArrayContentProvider());
			}
			viewer.setUseHashlookup(true);
	
			viewer.setInput(userInput.getChoices());
			viewer.getControl().setFont(parent.getFont());
			// TODO: treeViewer Sorter and Expand/Collapse
		}
	}
	
	protected void createTableViewer(Composite parent, UserInput userInput){
		TableViewer viewer = new TableViewer(parent);
		viewer.addSelectionChangedListener(new ISelectionChangedListener() {
		
			public void selectionChanged(SelectionChangedEvent event) {
				// TODO Auto-generated method stub
		
			}
		
		});
	}
	protected void createText(Composite parent, UserInput userInput){
		final UserInput localinput = userInput;
		final Text text = new Text(parent, SWT.SINGLE | SWT.BORDER);
	        text.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL
	                | GridData.HORIZONTAL_ALIGN_FILL));
	        text.addModifyListener(new ModifyListener() {
	            public void modifyText(ModifyEvent e) {
	            	
	            }
	        });
	        text.addFocusListener(new FocusAdapter() {
				public void focusLost(FocusEvent e) {
					localinput.setInput(text.getText());
				}
			});
	}
	
	protected void setInput(UserInput input, Object obj){
		input.setInput(obj);
	}
	protected void createComboViewer(Composite composite, UserInput userInput) {
		// TODO Auto-generated method stub
		final UserInput localInput = userInput;
		ComboViewer viewer = new ComboViewer(composite);
		viewer.setContentProvider(new ArrayContentProvider());
		viewer.setInput(userInput.getChoices());
		viewer.addSelectionChangedListener(new ISelectionChangedListener() {
		
			public void selectionChanged(SelectionChangedEvent event) {
				IStructuredSelection selection = (StructuredSelection)event.getSelection();
				Object obj = selection.getFirstElement();
				localInput.setInput(obj);
			}
		});
	}
	
	/*
	 * 
	 */
	protected Label createMessageArea(Composite composite) {
		Label label = new Label(composite,SWT.WRAP);
		if(message != null){
			label.setText(message);
		}
		GridData gd= new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 2;
		label.setLayoutData(gd);
		applyDialogFont(label);
		return label;
	}
	
	/*
	 * (non-Javadoc)
	 * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
	 */
	protected Control createDialogArea(Composite parent) {
		// TODO Auto-generated method stub
		Composite composite = (Composite) super.createDialogArea(parent);
		composite.setFont(parent.getFont());

		GridLayout layout = (GridLayout) composite.getLayout();
		layout.marginWidth = 10;
		layout.marginHeight = 10;
		GridData gD = (GridData) composite.getLayoutData();
		layout.numColumns = 2;
		gD.widthHint = 300;
		gD.heightHint = 300;
		
		createMessageArea(composite);
		Label emptylabel = new Label(composite, SWT.NONE);
		emptylabel.setText("");
		GridData emptyData = new GridData(GridData.FILL_HORIZONTAL);
		emptyData.horizontalSpan =2;
		emptylabel.setLayoutData(emptyData);
		
		// Create controls based on UserInputs
		if(userInputs != null && userInputs.size() > 0){
			for(Iterator iterator = userInputs.iterator(); iterator.hasNext();){
				Object object = iterator.next();
				if(object instanceof UserInput){
					UserInput userInput = (UserInput)object;
					
					//Composite pane = new Composite(composite, SWT.NONE);
					//GridLayout paneLayout = (GridLayout) pane.getLayout();
					//paneLayout.marginWidth = 10;
					//paneLayout.marginHeight = 10;
					//paneLayout.numColumns = 2;
					// Create a Label
					Label label = new Label(composite, SWT.NONE);
					label.setText(userInput.getLabel());
					GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
					label.setLayoutData(gridData);
					
					if(userInput.getType() == UserInput.TEXT){
						createText(composite, userInput );
					}
					else if(userInput.getType() == UserInput.SELECTION){
						createComboViewer(composite, userInput);
					}
					//pane.addPaintListener(new Bord)
					Label emptyLabel = new Label(composite, SWT.NONE);
					emptyLabel.setText("");
					emptyData = new GridData(GridData.FILL_HORIZONTAL);
					emptyData.horizontalSpan =2;
					emptyLabel.setLayoutData(emptyData);
					
				}
			}
		}
		return composite;
	}
	
    /*
     * (non-Javadoc)
     * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
     */
    protected void configureShell(Shell newShell) {
    	// TODO Auto-generated method stub
    	super.configureShell(newShell);
    	if (this.title != null) {
			newShell.setText(this.title);
		}
    }
    /*
     * (non-Javadoc)
     * @see org.eclipse.jface.dialogs.Dialog#okPressed()
     */
    protected void okPressed() {
    	result = true;
    	super.okPressed();
    }
    /*
     * (non-Javadoc)
     * @see org.eclipse.jface.dialogs.Dialog#cancelPressed()
     */
    protected void cancelPressed() {
    	if(userInputs != null && userInputs.size() > 0){
			for(Iterator iterator = userInputs.iterator(); iterator.hasNext();){
				Object object = iterator.next();
				if(object instanceof UserInput){
					UserInput userInput = (UserInput)object;
					userInput.setInput(null);
				}
			}
		}
    	super.cancelPressed();
    }
    
    public boolean getResult(){
    	return result ;
    }
}