package net.sourceforge.phpdt.sql.view;

/**********************************************************************
Copyright (c) 2000, 2002 IBM Corp. and others.
All rights reserved. This program and the accompanying materials
are made available under the terms of the Common Public License v1.0
which accompanies this distribution, and is available at
http://www.eclipse.org/legal/cpl-v10.html

Contributors:
	IBM Corporation - Initial implementation
	Klaus Hartlage - www.eclipseproject.de
**********************************************************************/
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.Document;
import org.eclipse.jface.text.TextViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.IWorkbenchActionConstants;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.part.ViewPart;

import net.sourceforge.phpdt.sql.Messages;
import net.sourceforge.phpdt.sql.PHPEclipseSQLPlugin;

/**
 * The PHPSourceConsole is used to display the output from the PHP SQL wizards
 * @see ViewPart
 */
public class PHPSourceConsole extends ViewPart {

  public static final String CONSOLE_ID =
	"net.sourceforge.phpdt.sql.view.phpsourceconsoleview";

  TextViewer viewer = null;
  private Document document = null;

  /**
   * The constructor.
   */
  public PHPSourceConsole() {
  }

  /**
   * Insert the method's description here.
   * @see ViewPart#createPartControl
   */
  public void createPartControl(Composite parent) {
	viewer = new TextViewer(parent, SWT.WRAP | SWT.V_SCROLL | SWT.H_SCROLL);
	GridData viewerData = new GridData(GridData.FILL_BOTH);
	viewer.getControl().setLayoutData(viewerData);
	viewer.setEditable(false);

	StyledText widget = viewer.getTextWidget();
	widget.setFont(
	  JFaceResources.getFontRegistry().get(JFaceResources.TEXT_FONT));
	Action cutAction = new Action() {
	  public void run() {
		viewer.getTextWidget().cut();
	  }
	};
	Action copyAction = new Action() {
	  public void run() {
		viewer.getTextWidget().copy();
	  }
	};
	Action pasteAction = new Action() {
	  public void run() {
		viewer.getTextWidget().paste();
	  }
	};

	IActionBars bars = this.getViewSite().getActionBars();
	bars.setGlobalActionHandler(IWorkbenchActionConstants.CUT, cutAction);
	bars.setGlobalActionHandler(IWorkbenchActionConstants.COPY, copyAction);
	bars.setGlobalActionHandler(IWorkbenchActionConstants.PASTE, pasteAction);
  }

  /**
   * Insert the method's description here.
   * @see ViewPart#setFocus
   */
  public void setFocus() {
  }

  /**
   * Set the text for the viewer
   */
  private void setOutputText(String text) {
	document = new Document(text);
	viewer.setDocument(document);
  }

  private void appendOutputText(String text) {
	try {
	  if (document == null) {
		document = new Document(text);
		viewer.setDocument(document);
	  }
	  document.replace(document.getLength(), 0, text);
	} catch (BadLocationException e) {
	}
	//  viewer.setDocument(document);
  }

  public static PHPSourceConsole getInstance() {
	IWorkbenchPage page =
	  PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
	PHPSourceConsole console = (PHPSourceConsole) page.findView(PHPSourceConsole.CONSOLE_ID);
	// if (PHPeclipsePlugin.SHOW_OUTPUT_IN_CONSOLE.getDefault().getPreferenceStore().getBoolean(PHPeclipsePlugin.SHOW_OUTPUT_IN_CONSOLE) == true) {

	try {
	  page.showView(PHPSourceConsole.CONSOLE_ID);
	  if (console == null) { 
		console = (PHPSourceConsole) page.findView(PHPSourceConsole.CONSOLE_ID);
	  }
	} catch (PartInitException e) {
	  PHPEclipseSQLPlugin.getDefault().getLog().log(
		new Status(
		  IStatus.ERROR,
		  PHPEclipseSQLPlugin.PLUGIN_ID,
		  0,
		  Messages.getString("sqlconsole.viewopeningproblem"),
		  e));
	}

	//   }
	return console;
  }

  /**
   * Prints out the string represented by the string buffer
   */
  public synchronized void print(String output) {
	appendOutputText(output);
  }

  /**
   * Prints out the string represented by the string buffer
   */
  public synchronized void println(String output) {
	appendOutputText(output+'\n');
  }

  public synchronized void clear() {
	setOutputText("");
  }
}