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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/carbon/org/eclipse/swt/dnd/TextTransfer.java')
-rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/carbon/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/carbon/org/eclipse/swt/dnd/TextTransfer.java b/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/carbon/org/eclipse/swt/dnd/TextTransfer.java deleted file mode 100644 index f9c17e81d6..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/carbon/org/eclipse/swt/dnd/TextTransfer.java +++ /dev/null @@ -1,144 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2009 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.carbon.CFRange; -import org.eclipse.swt.internal.carbon.OS; - -/** - * 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 { - - static TextTransfer _instance = new TextTransfer(); - static final String UT16 = "ut16"; //$NON-NLS-1$ - static final String UTF8 = "utf8"; //$NON-NLS-1$ - static final int UT16ID = OS.kScrapFlavorTypeUTF16External; - static final int UTF8ID = ('u'<<24) + ('t'<<16) + ('f'<<8) + '8'; - -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) { - if (!checkText(object) || !isSupportedType(transferData)) { - DND.error(DND.ERROR_INVALID_DATA); - } - String string = (String)object; - char[] chars = new char[string.length()]; - string.getChars (0, chars.length, chars, 0); - transferData.result = -1; - - switch (transferData.type) { - case UTF8ID: - case UT16ID: { - int encoding = transferData.type == UTF8ID ? OS.kCFStringEncodingUTF8 : OS.kCFStringEncodingUnicode; - int cfstring = OS.CFStringCreateWithCharacters(OS.kCFAllocatorDefault, chars, chars.length); - if (cfstring == 0) return; - byte[] buffer = null; - try { - CFRange range = new CFRange(); - range.length = chars.length; - int[] size = new int[1]; - int numChars = OS.CFStringGetBytes(cfstring, range, encoding, (byte)'?', true, null, 0, size); - if (numChars == 0) return; - buffer = new byte[size[0]]; - numChars = OS.CFStringGetBytes(cfstring, range, encoding, (byte)'?', true, buffer, size [0], size); - if (numChars == 0) return; - } finally { - OS.CFRelease(cfstring); - } - transferData.data = new byte[1][]; - transferData.data[0] = buffer; - transferData.result = OS.noErr; - break; - } - } -} - -/** - * 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.data == null) return null; - if (transferData.data.length == 0 || transferData.data[0].length == 0) return null; - byte[] buffer = transferData.data[0]; - switch (transferData.type) { - case UTF8ID: - case UT16ID: { - int encoding = transferData.type == UTF8ID ? OS.kCFStringEncodingUTF8 : OS.kCFStringEncodingUnicode; - int cfstring = OS.CFStringCreateWithBytes(OS.kCFAllocatorDefault, buffer, buffer.length, encoding, true); - if (cfstring == 0) return null; - try { - int length = OS.CFStringGetLength(cfstring); - if (length == 0) return null; - char[] chars = new char[length]; - CFRange range = new CFRange(); - range.length = length; - OS.CFStringGetCharacters(cfstring, range, chars); - return new String(chars); - } finally { - OS.CFRelease(cfstring); - } - } - } - return null; -} - -protected int[] getTypeIds() { - return new int[] {UT16ID, UTF8ID}; -} - -protected String[] getTypeNames() { - return new String[] {UT16, UTF8}; -} - -boolean checkText(Object object) { - return (object != null && object instanceof String && ((String)object).length() > 0); -} -protected boolean validate(Object object) { - return checkText(object); -} -} |