Mercurial > projects > dwt-mac
view dwt/dnd/RTFTransfer.d @ 139:86fc761a24ae
Fixes #11
author | Jacob Carlborg <doob@me.com> |
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date | Thu, 04 Jun 2009 23:23:10 +0200 |
parents | a2d82e6fd054 |
children |
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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: * Jacob Carlborg <doob@me.com> *******************************************************************************/ module dwt.dnd.RTFTransfer; import dwt.dwthelper.utils; import dwt.internal.cocoa.NSString; import dwt.internal.cocoa.OS; import dwt.dnd.ByteArrayTransfer; import dwt.dnd.DND; import dwt.dnd.TransferData; /** * The class <code>RTFTransfer</code> provides a platform specific mechanism * for converting text in RTF format represented as a java <code>String</code> * to a platform specific representation of the data and vice versa. * * <p>An example of a java <code>String</code> containing RTF text is shown * below:</p> * * <code><pre> * String rtfData = "{\\rtf1{\\colortbl;\\red255\\green0\\blue0;}\\uc1\\b\\i Hello World}"; * </code></pre> * * @see Transfer */ public class RTFTransfer : ByteArrayTransfer { static RTFTransfer _instance; static const String RTF; static const int RTFID; static this () { _instance = new RTFTransfer(); RTF = OS.NSRTFPboardType.getString(); RTFID = registerType(RTF); } this() {} /** * Returns the singleton instance of the RTFTransfer class. * * @return the singleton instance of the RTFTransfer class */ public static RTFTransfer getInstance () { return _instance; } /** * This implementation of <code>javaToNative</code> converts RTF-formatted text * represented by a java <code>String</code> to a platform specific representation. * * @param object a java <code>String</code> containing RTF text * @param transferData an empty <code>TransferData</code> object that will * be filled in on return with the platform specific format of the data * * @see Transfer#nativeToJava */ public void javaToNative (Object object, TransferData transferData){ if (!checkRTF(object) || !isSupportedType(transferData)) { DND.error(DND.ERROR_INVALID_DATA); } transferData.data = NSString.stringWith((cast(ArrayWrapperString) object).array); } /** * This implementation of <code>nativeToJava</code> converts a platform specific * representation of RTF text to a java <code>String</code>. * * @param transferData the platform specific representation of the data to be converted * @return a java <code>String</code> containing RTF text if the conversion was successful; * otherwise null * * @see Transfer#javaToNative */ public Object nativeToJava(TransferData transferData){ if (!isSupportedType(transferData) || transferData.data is null) return null; NSString string = cast(NSString) transferData.data; return new ArrayWrapperString(string.getString()); } protected int[] getTypeIds() { return [RTFID]; } protected String[] getTypeNames() { return [RTF]; } bool checkRTF(Object object) { return (object !is null && cast(ArrayWrapperString) object && (cast(ArrayWrapperString) object).array.length() > 0); } protected bool validate(Object object) { return checkRTF(object); } }