diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/gtk/org/eclipse/swt/dnd/TextTransfer.java')
-rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/gtk/org/eclipse/swt/dnd/TextTransfer.java | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/gtk/org/eclipse/swt/dnd/TextTransfer.java b/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/gtk/org/eclipse/swt/dnd/TextTransfer.java deleted file mode 100644 index 6a6dabc616..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/gtk/org/eclipse/swt/dnd/TextTransfer.java +++ /dev/null @@ -1,144 +0,0 @@ -/******************************************************************************* - * 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>TextTransfer</code> provides a platform specific mechanism - * for converting plain text 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 plain text is shown - * below:</p> - * - * <code><pre> - * String textData = "Hello World"; - * </code></pre> - * - * @see Transfer - */ -public class TextTransfer extends ByteArrayTransfer { - - private static TextTransfer _instance = new TextTransfer(); - private static final String COMPOUND_TEXT = "COMPOUND_TEXT"; //$NON-NLS-1$ - private static final String UTF8_STRING = "UTF8_STRING"; //$NON-NLS-1$ - private static final String STRING = "STRING"; //$NON-NLS-1$ - private static final int COMPOUND_TEXT_ID = registerType(COMPOUND_TEXT); - private static final int UTF8_STRING_ID = registerType(UTF8_STRING); - private static final int STRING_ID = registerType(STRING); - -private TextTransfer() {} - -/** - * Returns the singleton instance of the TextTransfer class. - * - * @return the singleton instance of the TextTransfer class - */ -public static TextTransfer getInstance () { - return _instance; -} - -/** - * This implementation of <code>javaToNative</code> converts plain text - * represented by a java <code>String</code> to a platform specific representation. - * - * @param object a java <code>String</code> containing 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 (!checkText(object) || !isSupportedType(transferData)) { - DND.error(DND.ERROR_INVALID_DATA); - } - String string = (String)object; - byte[] utf8 = Converter.wcsToMbcs (null, string, true); - if (transferData.type == COMPOUND_TEXT_ID) { - int /*long*/[] encoding = new int /*long*/[1]; - int[] format = new int[1]; - int /*long*/[] ctext = new int /*long*/[1]; - int[] length = new int[1]; - boolean result = OS.gdk_utf8_to_compound_text(utf8, encoding, format, ctext, length); - if (!result) return; - transferData.type = encoding[0]; - transferData.format = format[0]; - transferData.length = length[0]; - transferData.pValue = ctext[0]; - transferData.result = 1; - } - if (transferData.type == UTF8_STRING_ID) { - int /*long*/ pValue = OS.g_malloc(utf8.length); - if (pValue == 0) return; - OS.memmove(pValue, utf8, utf8.length); - transferData.type = UTF8_STRING_ID; - transferData.format = 8; - transferData.length = utf8.length - 1; - transferData.pValue = pValue; - transferData.result = 1; - } - if (transferData.type == STRING_ID) { - int /*long*/ string_target = OS.gdk_utf8_to_string_target(utf8); - if (string_target == 0) return; - transferData.type = STRING_ID; - transferData.format = 8; - transferData.length = OS.strlen(string_target); - transferData.pValue = string_target; - transferData.result = 1; - } -} - -/** - * This implementation of <code>nativeToJava</code> converts a platform specific - * representation of plain 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 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 /*long*/[] list = new int /*long*/[1]; - int count = OS.gdk_text_property_to_utf8_list(transferData.type, transferData.format, transferData.pValue, transferData.length, list); - if (count == 0) return null; - int /*long*/[] ptr = new int /*long*/[1]; - OS.memmove(ptr, list[0], OS.PTR_SIZEOF); - int length = OS.strlen(ptr[0]); - byte[] utf8 = new byte[length]; - OS.memmove(utf8, ptr[0], length); - OS.g_strfreev(list[0]); - // convert utf8 byte array to a unicode string - char [] unicode = Converter.mbcsToWcs (null, utf8); - String string = new String (unicode); - int end = string.indexOf('\0'); - return (end == -1) ? string : string.substring(0, end); -} - -protected int[] getTypeIds() { - return new int[] {UTF8_STRING_ID, COMPOUND_TEXT_ID, STRING_ID}; -} - -protected String[] getTypeNames() { - return new String[] {UTF8_STRING, COMPOUND_TEXT, STRING}; -} - -boolean checkText(Object object) { - return (object != null && object instanceof String && ((String)object).length() > 0); -} - -protected boolean validate(Object object) { - return checkText(object); -} -} |