Mercurial > projects > dwt-addons
diff 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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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwtx/draw2d/text/SimpleTextLayout.d Sun Aug 03 00:52:14 2008 +0200 @@ -0,0 +1,89 @@ +/******************************************************************************* + * 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; +} + +}