Mercurial > projects > dwt2
annotate org.eclipse.swt.win32.win32.x86/src/org/eclipse/swt/dnd/TransferData.d @ 0:6dd524f61e62
add dwt win and basic java stuff
author | Frank Benoit <benoit@tionex.de> |
---|---|
date | Mon, 02 Mar 2009 14:44:16 +0100 |
parents | |
children |
rev | line source |
---|---|
0
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
1 /******************************************************************************* |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
2 * Copyright (c) 2000, 2008 IBM Corporation and others. |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
3 * All rights reserved. This program and the accompanying materials |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
4 * are made available under the terms of the Eclipse Public License v1.0 |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
5 * which accompanies this distribution, and is available at |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
6 * http://www.eclipse.org/legal/epl-v10.html |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
7 * |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
8 * Contributors: |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
9 * IBM Corporation - initial API and implementation |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
10 * Port to the D programming language: |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
11 * Frank Benoit <benoit@tionex.de> |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
12 *******************************************************************************/ |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
13 module org.eclipse.swt.dnd.TransferData; |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
14 |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
15 import org.eclipse.swt.internal.ole.win32.COM; |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
16 import org.eclipse.swt.internal.ole.win32.OBJIDL; |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
17 |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
18 /** |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
19 * The <code>TransferData</code> class is a platform specific data structure for |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
20 * describing the type and the contents of data being converted by a transfer agent. |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
21 * |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
22 * <p>As an application writer, you do not need to know the specifics of |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
23 * TransferData. TransferData instances are passed to a subclass of Transfer |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
24 * and the Transfer object manages the platform specific issues. |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
25 * You can ask a Transfer subclass if it can handle this data by calling |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
26 * Transfer.isSupportedType(transferData).</p> |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
27 * |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
28 * <p>You should only need to become familiar with the fields in this class if you |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
29 * are implementing a Transfer subclass and you are unable to subclass the |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
30 * ByteArrayTransfer class.</p> |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
31 * |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
32 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
33 */ |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
34 public class TransferData { |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
35 /** |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
36 * The type is a unique identifier of a system format or user defined format. |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
37 * (Warning: This field is platform dependent) |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
38 * <p> |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
39 * <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
40 * public API. It is marked public only so that it can be shared |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
41 * within the packages provided by SWT. It is not available on all |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
42 * platforms and should never be accessed from application code. |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
43 * </p> |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
44 */ |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
45 public int type; |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
46 |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
47 /** |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
48 * The formatetc structure is a generalized data transfer format, enhanced to |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
49 * encompass a target device, the aspect, or view of the data, and |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
50 * a storage medium. |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
51 * (Warning: This field is platform dependent) |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
52 * <p> |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
53 * <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
54 * public API. It is marked public only so that it can be shared |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
55 * within the packages provided by SWT. It is not available on all |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
56 * platforms and should never be accessed from application code. |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
57 * </p> |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
58 */ |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
59 public FORMATETC* formatetc; |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
60 |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
61 /** |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
62 * The stgmedium structure is a generalized global memory handle used for |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
63 * data transfer operations. |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
64 * (Warning: This field is platform dependent) |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
65 * <p> |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
66 * <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
67 * public API. It is marked public only so that it can be shared |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
68 * within the packages provided by SWT. It is not available on all |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
69 * platforms and should never be accessed from application code. |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
70 * </p> |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
71 */ |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
72 public STGMEDIUM* stgmedium; |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
73 |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
74 /** |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
75 * The result field contains the result of converting a |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
76 * java data type into a platform specific value. |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
77 * (Warning: This field is platform dependent) |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
78 * <p> |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
79 * <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
80 * public API. It is marked public only so that it can be shared |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
81 * within the packages provided by SWT. It is not available on all |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
82 * platforms and should never be accessed from application code. |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
83 * </p> |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
84 * <p>The value of result is 1 if the conversion was successful. |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
85 * The value of result is 0 if the conversion failed.</p> |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
86 */ |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
87 public int result = COM.E_FAIL; |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
88 |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
89 /** |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
90 * The pIDataObject is the address of an IDataObject OLE Interface which |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
91 * provides access to the data associated with the transfer. |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
92 * (Warning: This field is platform dependent) |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
93 * <p> |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
94 * <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
95 * public API. It is marked public only so that it can be shared |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
96 * within the packages provided by SWT. It is not available on all |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
97 * platforms and should never be accessed from application code. |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
98 * </p> |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
99 */ |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
100 public IDataObject pIDataObject; |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
101 |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
102 static bool sameType(TransferData data1, TransferData data2) { |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
103 if (data1 is data2) return true; |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
104 if (data1 is null || data2 is null) return false; |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
105 return (data1.type is data2.type && |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
106 data1.formatetc.cfFormat is data2.formatetc.cfFormat && |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
107 data1.formatetc.dwAspect is data2.formatetc.dwAspect && |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
108 data1.formatetc.tymed is data2.formatetc.tymed); |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
109 } |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
110 |
6dd524f61e62
add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff
changeset
|
111 } |