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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/gtk/org/eclipse/swt/dnd/RTFTransfer.java')
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/gtk/org/eclipse/swt/dnd/RTFTransfer.java114
1 files changed, 114 insertions, 0 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/gtk/org/eclipse/swt/dnd/RTFTransfer.java b/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/gtk/org/eclipse/swt/dnd/RTFTransfer.java
new file mode 100644
index 0000000000..74aae33125
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/gtk/org/eclipse/swt/dnd/RTFTransfer.java
@@ -0,0 +1,114 @@
+/*******************************************************************************
+ * 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
+ *******************************************************************************/
+package org.eclipse.swt.dnd;
+
+import org.eclipse.swt.internal.*;
+import org.eclipse.swt.internal.gtk.*;
+
+/**
+ * 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 extends ByteArrayTransfer {
+
+ private static RTFTransfer _instance = new RTFTransfer();
+ private static final String TEXT_RTF = "text/rtf"; //$NON-NLS-1$
+ private static final int TEXT_RTF_ID = registerType(TEXT_RTF);
+ private static final String TEXT_RTF2 = "TEXT/RTF"; //$NON-NLS-1$
+ private static final int TEXT_RTF2_ID = registerType(TEXT_RTF2);
+ private static final String APPLICATION_RTF = "application/rtf"; //$NON-NLS-1$
+ private static final int APPLICATION_RTF_ID = registerType(APPLICATION_RTF);
+
+private RTFTransfer() {}
+
+/**
+ * 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){
+ transferData.result = 0;
+ if (!checkRTF(object) || !isSupportedType(transferData)) {
+ DND.error(DND.ERROR_INVALID_DATA);
+ }
+ String string = (String)object;
+ byte [] buffer = Converter.wcsToMbcs (null, string, true);
+ int /*long*/ pValue = OS.g_malloc(buffer.length);
+ if (pValue == 0) return;
+ OS.memmove(pValue, buffer, buffer.length);
+ transferData.length = buffer.length - 1;
+ transferData.format = 8;
+ transferData.pValue = pValue;
+ transferData.result = 1;
+}
+
+/**
+ * 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.pValue == 0 ) return null;
+ int size = transferData.format * transferData.length / 8;
+ if (size == 0) return null;
+ byte[] buffer = new byte[size];
+ OS.memmove(buffer, transferData.pValue, size);
+ char [] chars = Converter.mbcsToWcs (null, buffer);
+ String string = new String (chars);
+ int end = string.indexOf('\0');
+ return (end == -1) ? string : string.substring(0, end);
+}
+
+protected int[] getTypeIds() {
+ return new int[] {TEXT_RTF_ID, TEXT_RTF2_ID, APPLICATION_RTF_ID};
+}
+
+protected String[] getTypeNames() {
+ return new String[] {TEXT_RTF, TEXT_RTF2, APPLICATION_RTF};
+}
+
+boolean checkRTF(Object object) {
+ return (object != null && object instanceof String && ((String)object).length() > 0);
+}
+
+protected boolean validate(Object object) {
+ return checkRTF(object);
+}
+}

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