package net.sourceforge.phpdt.internal.debug.ui.properties;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.debug.internal.ui.actions.*;
import org.eclipse.jface.dialogs.StatusDialog;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.text.Document;
import org.eclipse.jface.text.DocumentEvent;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IDocumentListener;
import org.eclipse.jface.text.source.SourceViewer;
import org.eclipse.jface.text.source.SourceViewerConfiguration;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
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.Spinner;

import net.sourceforge.phpdt.internal.debug.core.breakpoints.PHPLineBreakpoint;

public class PHPBreakpointPropertiesDialog extends StatusDialog {

	private PHPLineBreakpoint fBreakpoint;
	private SourceViewer      fSnippetViewer;
	private Button            fCheckBox;
	private Spinner		      fSpinner;
	
	public PHPBreakpointPropertiesDialog(Shell parentShell, PHPLineBreakpoint bp) {
		super(parentShell);
		
		fBreakpoint = bp;
	}
	

	protected Control createDialogArea (Composite parent) {
		Composite  container;
		GridLayout layout;
		GridData   gd;
		IDocument  document;
		Control    control;
		Label      label;
		Spinner	   spinner;
		String     condition = "";
		boolean    enabled   = false;
		int        hitCount  = 0;
		
		try {
			condition = fBreakpoint.getCondition ();
			enabled   = fBreakpoint.isConditionEnabled ();
			hitCount  = fBreakpoint.getHitCount();
		}
		catch (CoreException e) {
		}
		
		Font font = parent.getFont();								// Get the dialog's font
		container = new Composite(parent, SWT.NONE);				// Create a new container for our controls
		layout    = new GridLayout();								// Create a grid for control layouting
		
		container.setLayout (layout);								// Set the grid to the container
		gd        = new GridData (SWT.FILL, SWT.FILL, true, true);
		container.setLayoutData (gd);

		label     = new Label (container, SWT.NONE);				// spinner label
		label.setText ("Skip count");								// $NON-NLS-1$
		
		gd        = new GridData (SWT.BEGINNING);					// Left align of label text
		label.setLayoutData (gd);									// 
		label.setFont (font);										// Set the label's font
		
		fSpinner  = new Spinner (container, SWT.BORDER);
		fSpinner.setMinimum (0);
		fSpinner.setMaximum (100000);
		fSpinner.setIncrement (1);
		fSpinner.setPageIncrement (100);
		fSpinner.setSelection (hitCount);
		gd        = new GridData (SWT.BEGINNING);
		label.setLayoutData (gd);									// 
		label.setFont (font);										// Set the label's font
		
		label     = new Label (container, SWT.NONE);				// snippet label
		label.setText ("Break Condition");							// $NON-NLS-1$
		
		gd        = new GridData (SWT.BEGINNING);					// Left align of label text
		label.setLayoutData (gd);									// 
		label.setFont (font);										// Set the label's font
		
		fSnippetViewer = new SourceViewer (container, null, SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
		fSnippetViewer.setInput (this);
		
		document       = new Document();
		
		//IDocumentPartitioner partitioner= new RuleBasedPartitioner(...);
		//document.setDocumentPartitioner(partitioner);
		//partitioner.connect(document);
		
		fSnippetViewer.configure (new SourceViewerConfiguration());
		fSnippetViewer.setEditable (true);
		fSnippetViewer.setDocument (document);
		
		document.addDocumentListener (new IDocumentListener() {
			public void documentAboutToBeChanged(DocumentEvent event) {
			}
			public void documentChanged(DocumentEvent event) {
				checkValues();
			}
		});

		fSnippetViewer.getTextWidget ().setFont (JFaceResources.getTextFont());

		control       = fSnippetViewer.getControl ();
		gd            = new GridData (GridData.FILL_BOTH);
		gd.heightHint = convertHeightInCharsToPixels (10);
		gd.widthHint  = convertWidthInCharsToPixels (80);
		
		control.setLayoutData (gd);
		fSnippetViewer.getDocument ().set (condition);

		// enable checkbox
		fCheckBox = new Button (container, SWT.CHECK | SWT.LEFT);
		fCheckBox.setText ("Enable Condition"); //$NON-NLS-1$
		fCheckBox.setSelection (enabled);
		fCheckBox.setFont (font);

		applyDialogFont(container);
		fSnippetViewer.getControl().setFocus();
		
		checkValues ();
		
		return container;
	}
	
	protected void okPressed () {
		try {
			fBreakpoint.setCondition (fSnippetViewer.getDocument().get());
			fBreakpoint.setConditionEnabled (fCheckBox.getSelection());
			fBreakpoint.setHitCount(fSpinner.getSelection());
			
			int id = fBreakpoint.getChangeID();
			id++;
			fBreakpoint.setChangeID(id);
		}
		catch (CoreException e) {
		}
		
		super.okPressed ();
	}
	
	/**
	 * Check the field values and display a message in the status if needed.
	 */
	private void checkValues() {
		StatusInfo status;
		
		status = new StatusInfo ();
		/*
		StatusInfo status = new StatusInfo();
				if (fSnippetViewer.getDocument().get().trim().length() == 0) {
			status.setError(ActionMessages.WatchExpressionDialog_4); //$NON-NLS-1$
		}
		*/
		updateStatus(status);
	}
}