Mercurial > projects > dwt-addons
view dwtx/draw2d/text/SimpleTextLayout.d @ 98:95307ad235d9
Added Draw2d code, still work in progress
author | Frank Benoit <benoit@tionex.de> |
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date | Sun, 03 Aug 2008 00:52:14 +0200 |
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/******************************************************************************* * Copyright (c) 2000, 2008 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 * Port to the D programming language: * Frank Benoit <benoit@tionex.de> *******************************************************************************/ module dwtx.draw2d.text.SimpleTextLayout; import dwt.dwthelper.utils; import dwtx.dwtxhelper.Collection; import dwt.graphics.Font; import dwtx.draw2d.text.TextLayout; import dwtx.draw2d.text.TextFlow; import dwtx.draw2d.text.TextFragmentBox; import dwtx.draw2d.text.FlowUtilities; /** * @author hudsonr * @since 2.1 */ public class SimpleTextLayout : TextLayout { private static const 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 this(TextFlow flow) { super (flow); } /** * @see dwtx.draw2d.text.FlowFigureLayout#layout() */ protected void layout() { TextFlow textFlow = cast(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_package(); do { nextLineBreak(text, offset); fragment = getFragment(i++, fragments); fragment.length = result - offset; fragment.offset = offset; fragment.setWidth(-1); flowUtilities.setupFragment_package(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 !is -1 && current < result) { result = current; delimeterLength = DELIMITERS[i].length; } } return result; } }