/**
 * Copyright (C) 2001-2017 by RapidMiner and the contributors
 * 
 * Complete list of developers available at our web site:
 * 
 * http://rapidminer.com
 * 
 * This program is free software: you can redistribute it and/or modify it under the terms of the
 * GNU Affero General Public License as published by the Free Software Foundation, either version 3
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License along with this program.
 * If not, see http://www.gnu.org/licenses/.
*/
package com.rapidminer.gui.properties;

import java.awt.Dimension;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;

import javax.swing.JButton;
import javax.swing.ScrollPaneConstants;

import org.fife.ui.rsyntaxtextarea.RSyntaxDocument;
import org.fife.ui.rsyntaxtextarea.RSyntaxTextArea;
import org.fife.ui.rtextarea.RTextScrollPane;

import com.rapidminer.gui.properties.celleditors.value.TextValueCellEditor;
import com.rapidminer.gui.tools.ResourceAction;
import com.rapidminer.gui.tools.SQLEditor;
import com.rapidminer.gui.tools.SwingTools;
import com.rapidminer.gui.tools.syntax.JEditTextArea;
import com.rapidminer.operator.Operator;
import com.rapidminer.parameter.ParameterTypeText;
import com.rapidminer.tools.I18N;


/**
 * A Dialog displaying a {@link JEditTextArea}. This can be used to type some lengthy text instead
 * of the short text fields usually used for ParameterTypeStrings. This dialog is used by the
 * {@link TextValueCellEditor}.
 *
 * @author Ingo Mierswa, Tobias Malbrecht, Sebastian Land
 */
public class TextPropertyDialog extends PropertyDialog {

	private static final long serialVersionUID = 8574310060170861505L;

	private String text = null;

	private boolean ok = false;

	private RSyntaxTextArea textArea;

	private JButton resizeButton = new JButton();

	public TextPropertyDialog(final ParameterTypeText type, String text, Operator operator) {
		super(type, "text");
		this.text = text;
		ResourceAction resizeAction = new ResourceAction(false, "text_dialog.enlarge") {

			private static final long serialVersionUID = 8857840715142145951L;

			@Override
			public void actionPerformed(ActionEvent e) {
				Dimension screenDim = Toolkit.getDefaultToolkit().getScreenSize();
				Dimension dim = new Dimension((int) (screenDim.width * 0.9), (int) (screenDim.height * 0.9));
				Dimension currentSize = getSize();
				if (currentSize.getHeight() != dim.getHeight() && currentSize.getWidth() != dim.getWidth()) {
					setSize(dim);
					setLocationRelativeTo(null);
					resizeButton.setText(I18N.getMessage(I18N.getGUIBundle(), "gui.action.text_dialog.shrink.label"));
					resizeButton.setToolTipText(I18N.getMessage(I18N.getGUIBundle(), "gui.action.text_dialog.shrink.tip"));
					resizeButton.setMnemonic(I18N.getMessage(I18N.getGUIBundle(), "gui.action.text_dialog.shrink.mne")
							.charAt(0));
				} else {
					setSize(getDefaultSize(NORMAL));
					setDefaultLocation();
					resizeButton.setText(I18N.getMessage(I18N.getGUIBundle(), "gui.action.text_dialog.enlarge.label"));
					resizeButton.setToolTipText(I18N.getMessage(I18N.getGUIBundle(), "gui.action.text_dialog.enlarge.tip"));
					resizeButton.setMnemonic(I18N.getMessage(I18N.getGUIBundle(), "gui.action.text_dialog.enlarge.mne")
							.charAt(0));
				}
			}
		};

		switch (type.getTextType()) {
			case SQL:
				textArea = new SQLEditor();
				textArea.setBorder(null);
				break;
			case GROOVY:
			case HTML:
			case JAVA:
			case PLAIN:
			case R:
			case XML:
			default:
				textArea = new RSyntaxTextArea();
				textArea.setDocument(new RSyntaxDocument(type.getTextType().getSyntaxIdentifier()));
				textArea.setBorder(null);
				break;
		}
		// if no text is set show the template text
		textArea.setText(text == null ? type.getTemplateText() : text);
		textArea.setAnimateBracketMatching(type.getTextType().isBracketMatching());
		textArea.setAutoIndentEnabled(type.getTextType().isAutoIntending());
		textArea.setAutoscrolls(true);
		textArea.addKeyListener(new KeyAdapter() {

			@Override
			public void keyPressed(KeyEvent e) {
				if (SwingTools.isControlOrMetaDown(e) && e.getKeyCode() == KeyEvent.VK_ENTER) {
					ok();
				}
			}
		});
		resizeButton = new JButton(resizeAction);

		RTextScrollPane rTextScrollPane = new RTextScrollPane(textArea);
		rTextScrollPane.setBorder(null);
		rTextScrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED);
		layoutDefault(rTextScrollPane, NORMAL, resizeButton, makeOkButton("text_property_dialog_apply"), makeCancelButton());

		textArea.requestFocusInWindow();
	}

	@Override
	protected void ok() {
		this.ok = true;
		this.text = this.textArea.getText();
		dispose();
	}

	@Override
	protected void cancel() {
		this.ok = false;
		dispose();
	}

	@Override
	public boolean isOk() {
		return this.ok;
	}

	public String getText() {
		return this.text;
	}
}