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comparison src/select-msw.c @ 221:6c0ae1f9357f r20-4b9

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Import from CVS: tag r20-4b9
author cvs
date Mon, 13 Aug 2007 10:10:02 +0200
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children 557eaa0339bf
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220:04f4bca7b601 221:6c0ae1f9357f
1 /* mswindows selection processing for XEmacs
2 Copyright (C) 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
3
4 This file is part of XEmacs.
5
6 XEmacs is free software; you can redistribute it and/or modify it
7 under the terms of the GNU General Public License as published by the
8 Free Software Foundation; either version 2, or (at your option) any
9 later version.
10
11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with XEmacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
20
21 /* Synched up with: Not synched with FSF. */
22
23 /* Authorship:
24
25 Written by Kevin Gallo for FSF Emacs.
26 Rewritten for mswindows by Jonathan Harris, December 1997 for 20.4.
27 */
28
29
30 #include <config.h>
31 #include "lisp.h"
32
33 #include "console-msw.h"
34
35 DEFUN ("mswindows-set-clipboard", Fmswindows_set_clipboard, 1, 1, 0, /*
36 Copy STRING to the mswindows clipboard.
37 */
38 (string))
39 {
40 int rawsize, size, i;
41 unsigned char *src, *dst, *next;
42 HGLOBAL h = NULL;
43
44 CHECK_STRING (string, 0);
45
46 /* Calculate size with LFs converted to CRLFs because
47 * CF_TEXT format uses CRLF delimited ASCIIZ */
48 src = XSTRING_DATA (string);
49 size = rawsize = XSTRING_LENGTH (string) + 1;
50 for (i=0; i<rawsize; i++)
51 if (src[i] == '\n')
52 size++;
53
54 if (!OpenClipboard (NULL))
55 return Qnil;
56
57 if (!EmptyClipboard () ||
58 (h = GlobalAlloc (GMEM_MOVEABLE | GMEM_DDESHARE, size)) == NULL ||
59 (dst = (unsigned char *) GlobalLock (h)) == NULL)
60 {
61 if (h != NULL) GlobalFree (h);
62 CloseClipboard ();
63 return Qnil;
64 }
65
66 /* Convert LFs to CRLFs */
67 do
68 {
69 /* copy next line or remaining bytes including '\0' */
70 next = memccpy (dst, src, '\n', rawsize);
71 if (next)
72 {
73 /* copied one line ending with '\n' */
74 int copied = next - dst;
75 rawsize -= copied;
76 src += copied;
77 /* insert '\r' before '\n' */
78 next[-1] = '\r';
79 next[0] = '\n';
80 dst = next+1;
81 }
82 }
83 while (next);
84
85 GlobalUnlock (h);
86
87 i = SetClipboardData (CF_TEXT, h);
88
89 CloseClipboard ();
90 GlobalFree (h);
91
92 return i ? Qt : Qnil;
93 }
94
95 DEFUN ("mswindows-get-clipboard", Fmswindows_get_clipboard, 0, 0, 0, /*
96 Return the contents of the mswindows clipboard.
97 */
98 ())
99 {
100 HANDLE h;
101 unsigned char *src, *dst, *next;
102 Lisp_Object ret = Qnil;
103
104 if (!OpenClipboard (NULL))
105 return Qnil;
106
107 if ((h = GetClipboardData (CF_TEXT)) != NULL &&
108 (src = (unsigned char *) GlobalLock (h)) != NULL)
109 {
110 int i;
111 int size, rawsize;
112 size = rawsize = strlen (src);
113
114 for (i=0; i<rawsize; i++)
115 if (src[i] == '\r' && src[i+1] == '\n')
116 size--;
117
118 /* Convert CRLFs to LFs */
119 ret = make_uninit_string (size);
120 dst = XSTRING_DATA (ret);
121 do
122 {
123 /* copy next line or remaining bytes excluding '\0' */
124 next = _memccpy (dst, src, '\r', rawsize);
125 if (next)
126 {
127 /* copied one line ending with '\r' */
128 int copied = next - dst;
129 rawsize -= copied;
130 src += copied;
131 if (*src == '\n')
132 dst += copied - 1; /* overwrite '\r' */
133 else
134 dst += copied;
135 }
136 }
137 while (next);
138
139 GlobalUnlock (h);
140 }
141
142 CloseClipboard ();
143
144 return ret;
145 }
146
147
148 /************************************************************************/
149 /* initialization */
150 /************************************************************************/
151
152 void
153 syms_of_select_mswindows (void)
154 {
155 DEFSUBR (Fmswindows_set_clipboard);
156 DEFSUBR (Fmswindows_get_clipboard);
157 }
158
159 void
160 vars_of_select_mswindows (void)
161 {
162 }