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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/win32/org/eclipse/swt/dnd/Transfer.java')
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Drag and Drop/win32/org/eclipse/swt/dnd/Transfer.java179
1 files changed, 0 insertions, 179 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/win32/org/eclipse/swt/dnd/Transfer.java b/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/win32/org/eclipse/swt/dnd/Transfer.java
deleted file mode 100755
index 4a7f318b21..0000000000
--- a/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/win32/org/eclipse/swt/dnd/Transfer.java
+++ /dev/null
@@ -1,179 +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.ole.win32.*;
-import org.eclipse.swt.internal.win32.*;
-
-/**
- * <code>Transfer</code> provides a mechanism for converting between a java
- * representation of data and a platform specific representation of data and
- * vice versa. It is used in data transfer operations such as drag and drop and
- * clipboard copy/paste.
- *
- * <p>You should only need to become familiar with this class if you are
- * implementing a Transfer subclass and you are unable to subclass the
- * ByteArrayTransfer class.</p>
- *
- * @see ByteArrayTransfer
- * @see <a href="http://www.eclipse.org/swt/snippets/#dnd">Drag and Drop snippets</a>
- * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: DNDExample</a>
- * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
- */
-public abstract class Transfer {
-
-private static final int RETRY_LIMIT = 10;
-/*
- * Feature in Windows. When another application has control
- * of the clipboard, the clipboard is locked and it's not
- * possible to retrieve data until the other application is
- * finished. To allow other applications to get the
- * data, use PeekMessage() to enable cross thread
- * message sends.
- */
-int getData(IDataObject dataObject, FORMATETC pFormatetc, STGMEDIUM pmedium) {
- if (dataObject.GetData(pFormatetc, pmedium) == COM.S_OK) return COM.S_OK;
- try {Thread.sleep(50);} catch (Throwable t) {}
- int result = dataObject.GetData(pFormatetc, pmedium);
- int retryCount = 0;
- while (result != COM.S_OK && retryCount++ < RETRY_LIMIT) {
- MSG msg = new MSG();
- OS.PeekMessage(msg, 0, 0, 0, OS.PM_NOREMOVE | OS.PM_NOYIELD);
- try {Thread.sleep(50);} catch (Throwable t) {}
- result = dataObject.GetData(pFormatetc, pmedium);
- }
- return result;
-}
-
-/**
- * Returns a list of the platform specific data types that can be converted using
- * this transfer agent.
- *
- * <p>Only the data type fields of the <code>TransferData</code> objects are filled
- * in.</p>
- *
- * @return a list of the data types that can be converted using this transfer agent
- */
-abstract public TransferData[] getSupportedTypes();
-
-/**
- * Returns true if the <code>TransferData</code> data type can be converted
- * using this transfer agent, or false otherwise (including if transferData is
- * <code>null</code>).
- *
- * @param transferData a platform specific description of a data type; only the data
- * type fields of the <code>TransferData</code> object need to be filled in
- *
- * @return true if the transferData data type can be converted using this transfer
- * agent
- */
-abstract public boolean isSupportedType(TransferData transferData);
-
-/**
- * Returns the platform specific ids of the data types that can be converted using
- * this transfer agent.
- *
- * @return the platform specific ids of the data types that can be converted using
- * this transfer agent
- */
-abstract protected int[] getTypeIds();
-
-/**
- * Returns the platform specific names of the data types that can be converted
- * using this transfer agent.
- *
- * @return the platform specific names of the data types that can be converted
- * using this transfer agent.
- */
-abstract protected String[] getTypeNames();
-
-/**
- * Converts a java representation of data to a platform specific representation of
- * the data.
- *
- * <p>On a successful conversion, the transferData.result field will be set as follows:
- * <ul>
- * <li>Windows: COM.S_OK
- * <li>Motif: 1
- * <li>GTK: 1
- * <li>Photon: 1
- * </ul></p>
- *
- * <p>If this transfer agent is unable to perform the conversion, the transferData.result
- * field will be set to a failure value as follows:
- * <ul>
- * <li>Windows: COM.DV_E_TYMED or COM.E_FAIL
- * <li>Motif: 0
- * <li>GTK: 0
- * <li>Photon: 0
- * </ul></p>
- *
- * @param object a java representation of the data to be converted; the type of
- * Object that is passed in is dependent on the <code>Transfer</code> subclass.
- *
- * @param transferData an empty TransferData object; this object will be
- * filled in on return with the platform specific representation of the data
- *
- * @exception org.eclipse.swt.SWTException <ul>
- * <li>ERROR_INVALID_DATA - if object does not contain data in a valid format or is <code>null</code></li>
- * </ul>
- */
-abstract protected void javaToNative (Object object, TransferData transferData);
-
-/**
- * Converts a platform specific representation of data to a java representation.
- *
- * @param transferData the platform specific representation of the data to be
- * converted
- *
- * @return a java representation of the converted data if the conversion was
- * successful; otherwise null. If transferData is <code>null</code> then
- * <code>null</code> is returned. The type of Object that is returned is
- * dependent on the <code>Transfer</code> subclass.
- */
-abstract protected Object nativeToJava(TransferData transferData);
-
-/**
- * Registers a name for a data type and returns the associated unique identifier.
- *
- * <p>You may register the same type more than once, the same unique identifier
- * will be returned if the type has been previously registered.</p>
- *
- * <p>Note: On windows, do <b>not</b> call this method with pre-defined
- * Clipboard Format types such as CF_TEXT or CF_BITMAP because the
- * pre-defined identifier will not be returned</p>
- *
- * @param formatName the name of a data type
- *
- * @return the unique identifier associated with this data type
- */
-public static int registerType(String formatName) {
- // Look name up in the registry
- // If name is not in registry, add it and return assigned value.
- // If name already exists in registry, return its assigned value
- TCHAR chFormatName = new TCHAR(0, formatName, true);
- return OS.RegisterClipboardFormat(chFormatName);
-}
-
-/**
- * Test that the object is of the correct format for this Transfer class.
- *
- * @param object a java representation of the data to be converted
- *
- * @return true if object is of the correct form for this transfer type
- *
- * @since 3.1
- */
-protected boolean validate(Object object) {
- return true;
-}
-}

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