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Add copyright note and comment for merged old code

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Tor Lillqvist 2009-12-16 13:47:57 +02:00
parent eb21a7df29
commit 6e73be9d6c
1 changed files with 39 additions and 0 deletions
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39
gdk/win32/gdkdnd-win32.c
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@ -1,5 +1,6 @@
/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1999 Peter Mattis, Spencer Kimball and Josh MacDonald
* Copyright (C) 2001 Archaeopteryx Software Inc.
* Copyright (C) 1998-2002 Tor Lillqvist
*
* This library is free software; you can redistribute it and/or
@ -33,6 +34,44 @@
/* #define OLE2_DND */
/*
* Comment from the old OLE2 DND code that is being merged in (behind
* #ifdef OLE2_DND). Note that this comment might not fully reflect
* reality as the code obviously will have to be modified in this
* merge. Especially the talk about supporting other than UTF-8 text
* is bogus, that will not happen.
*
* Support for OLE-2 drag and drop added at Archaeopteryx Software, 2001
* For more information, contact Stephan R.A. Deibel (sdeibel@archaeopteryx.com)
*
* Notes on implementation:
*
* This is a first pass at OLE2 support. It only supports text and unicode text
* data types, and file list dnd (which is handled seperately as it predates OLE2
* both in this implementation and on Windows in general).
*
* As such, the data type conversion from gdk selection targets to OLE2 CF_* data
* type specifiers is partially hardwired. Fixing this is complicated by (a) the
* fact that the widget's declared selection types aren't accessible in calls here
* that need to declare the corresponding OLE2 data types, and (b) there isn't a
* 1-1 correspondence between gdk target types and OLE2 types. The former needs
* some redesign in gtk dnd (something a gdk/gtk expert should do; I have tried
* and failed!). As an example of the latter: gdk STRING, TEXT, COMPOUND_TEXT map
* to CF_TEXT, CF_OEMTEXT, and CF_UNICODETEXT but as a group and with conversions
* necessary for various combinations. Currently, the code here (and in
* gdkdnd-win32.c) can handle gdk STRING and TEXT but not COMPOUND_TEXT, and OLE2
* CF_TEXT and CF_UNICODETEXT but not CF_OEMTEXT. The necessary conversions are
* supplied by the implementation here.
*
* Note that in combination with another hack originated by Archaeopteryx
* Software, the text conversions here may go to utf-8 unicode as the standard
* within-gtk target or to single-byte ascii when the USE_ACP_TEXT compilation
* flag is TRUE. This mode was added to support applications that aren't using
* utf-8 across the gtk/gdk API but instead use single-byte ascii according to
* the current Windows code page. See gdkim-win32.c for more info on that.
*
*/
#define INITGUID
#include "gdkdnd.h"