| /******************************************************************************* |
| * Copyright (c) 2000, 2010 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 API and implementation |
| *******************************************************************************/ |
| package org.eclipse.draw2d.text; |
| |
| import java.util.List; |
| |
| import org.eclipse.swt.graphics.Font; |
| |
| /** |
| * @author hudsonr |
| * @since 2.1 |
| */ |
| public class SimpleTextLayout extends TextLayout { |
| |
| private static final String[] DELIMITERS = { "\r\n", //$NON-NLS-1$ |
| "\n", //$NON-NLS-1$ |
| "\r" };//$NON-NLS-1$ |
| |
| private static int result; |
| private static int delimeterLength; |
| |
| /** |
| * Creates a new SimpleTextLayout with the given TextFlow |
| * |
| * @param flow |
| * the TextFlow |
| */ |
| public SimpleTextLayout(TextFlow flow) { |
| super(flow); |
| } |
| |
| /** |
| * @see org.eclipse.draw2d.text.FlowFigureLayout#layout() |
| */ |
| protected void layout() { |
| TextFlow textFlow = (TextFlow) getFlowFigure(); |
| String text = textFlow.getText(); |
| List fragments = textFlow.getFragments(); |
| Font font = textFlow.getFont(); |
| TextFragmentBox fragment; |
| int i = 0; |
| int offset = 0; |
| FlowUtilities flowUtilities = textFlow.getFlowUtilities(); |
| |
| do { |
| nextLineBreak(text, offset); |
| fragment = getFragment(i++, fragments); |
| fragment.length = result - offset; |
| fragment.offset = offset; |
| fragment.setWidth(-1); |
| flowUtilities.setupFragment(fragment, font, |
| text.substring(offset, result)); |
| getContext().addToCurrentLine(fragment); |
| getContext().endLine(); |
| offset = result + delimeterLength; |
| } while (offset < text.length()); |
| // Remove the remaining unused fragments. |
| while (i < fragments.size()) |
| fragments.remove(i++); |
| } |
| |
| private int nextLineBreak(String text, int offset) { |
| result = text.length(); |
| delimeterLength = 0; |
| int current; |
| for (int i = 0; i < DELIMITERS.length; i++) { |
| current = text.indexOf(DELIMITERS[i], offset); |
| if (current != -1 && current < result) { |
| result = current; |
| delimeterLength = DELIMITERS[i].length(); |
| } |
| } |
| return result; |
| } |
| |
| } |