bundles/org.eclipse.rap.gef.demo/src/org/eclipse/draw2d/examples/text/CaretExample.java

///*******************************************************************************
// * Copyright (c) 2004 IBM Corporation 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 API and implementation
// *******************************************************************************/ 
//
//package org.eclipse.draw2d.examples.text;
//
//import org.eclipse.swt.SWT;
//import org.eclipse.swt.events.KeyAdapter;
//import org.eclipse.swt.graphics.Color;
//import org.eclipse.swt.graphics.Font;
//import org.eclipse.swt.layout.GridData;
//import org.eclipse.swt.layout.GridLayout;
//import org.eclipse.swt.widgets.Caret;
//import org.eclipse.swt.widgets.Group;
//import org.eclipse.swt.widgets.Label;
//
//import org.eclipse.draw2d.ColorConstants;
//import org.eclipse.draw2d.IFigure;
//import org.eclipse.draw2d.LineBorder;
//import org.eclipse.draw2d.MouseEvent;
//import org.eclipse.draw2d.MouseMotionListener;
//import org.eclipse.draw2d.PositionConstants;
//import org.eclipse.draw2d.examples.AbstractExample;
//import org.eclipse.draw2d.geometry.Point;
//import org.eclipse.draw2d.text.CaretInfo;
//import org.eclipse.draw2d.text.FlowPage;
//import org.eclipse.draw2d.text.TextFlow;
//
//public class CaretExample extends AbstractExample {
//
//TextFlow caretOwner;
//TextFlow content[];
//Caret caret;
//private Label offsetLabel;
//private Label trailLabel;
//private Label charLabel;
//
//protected IFigure getContents() {
//	caret = new Caret(getFigureCanvas(), 0);
//	final FlowPage page = new FlowPage() {
//		protected void paintFigure(org.eclipse.draw2d.Graphics graphics) {
//			graphics.setBackgroundColor(new Color(null, 190, 220, 250));
//			graphics.fillRectangle(getBounds());
//		};
//	};
//	
//	page.setBorder(new LineBorder(ColorConstants.darkGray, 10));
//	page.setHorizontalAligment(PositionConstants.CENTER);
//	
//	final TextFlow text = new TextFlow();
//	text.setText("A TextFlow can be queried for an offset for a given Point relative " +
//			"to it. The returned offset will be between 0 and N, where N is the length " +
//			"of the figure's text.\n" +
//			"<Chinese>\u6700\u65B0\u6D88\u606F</Chinese>.\n" +
//			"<Japanese>\u65e5\u672c\u8a9e\u306e\u30da\u30fc\u30b8\u3092\u691c\u7d22" +
//			"</Japanese>.\n" +
//			"<Hebrew>דפיםֱ מֱ- ישרֱֹאןץֱֹ" +
//			"</Hebrew>\n" +
//			"<Arabic>نصً ثُ سٍَبُس</Arabic>");
//	
//	text.setBorder(new TestBorder());
//	text.setFont(new Font(null, "Tahoma", 20, 0));
//	page.add(text);
//	
//	page.addMouseMotionListener(new MouseMotionListener.Stub() {
//		public void mouseMoved(MouseEvent me) {
//			int trail[] = new int[1];
//			Point where = me.getLocation();
//			page.translateFromParent(where);
//			int offset = text.getOffset(where, trail, null);
//			showCaret(text, offset, trail);
//		}
//		public void mouseExited(MouseEvent me) {
//			
//		};
//	});
//	return page;
//}
//
////protected int getShellStyle() {
////	return super.getShellStyle() | SWT.RIGHT_TO_LEFT;
////}
//
//protected void hookShell() {
//	getFigureCanvas().addKeyListener(new KeyAdapter() {});
//	Group panel = new Group(shell, 0);
//	panel.setLayout(new GridLayout());
//	panel.setText("Hit info");
//	panel.setLayoutData(new GridData(GridData.FILL_VERTICAL));
//	offsetLabel = new Label(panel, 0);
//	offsetLabel.setText("Offset: 999");
//	trailLabel = new Label(panel, 0);
//	trailLabel.setText("Trail: 0");
//	charLabel = new Label(panel, 0);
//	charLabel.setText("Char: WW");
//}
//
//void showCaret(TextFlow text, int offset, int[] trailing) {
//	if (caretOwner != null)
//		caretOwner.setSelection(-1, -1);
//	
//	offsetLabel.setText("Offset: " + offset);
//	trailLabel.setText("Trail: " + trailing[0]);
//	
//	caretOwner = text;
//	caret.setVisible(text != null);
//	CaretInfo info = text.getCaretPlacement(offset, trailing[0] != 0);
//	caret.setSize(1, info.getHeight());
//	caret.setLocation(info.getX(), info.getY());
//	text.setSelection(offset, offset + 1);
//	if (text.getText().length() == offset)
//		charLabel.setText("Char: ?");
//	else
//		charLabel.setText("Char: " + text.getText().charAt(offset));
//}
//
//public static void main(String[] args) {
//	new CaretExample().run();
//}
//
//protected void sizeShell() {
//	shell.setSize(shell.computeSize(400, -1));
//}
//
// }