trunk/src/OEMisc.c

/* OEMisc.c - OE misc functions
 *       Copyright (C) 2006 Timo Schulz
 *
 * This file is part of GPGOE.
 *
 * GPGOE is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 * 
 * GPGOE is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with GPGOE; if not, write to the Free Software Foundation, 
 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <windows.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>

#include "gpgme.h"
#include "GPGOE.h"


/* Convert the UTF8 string @string into the native charset. */
char*
utf8_to_native (const char *string)
{
    wchar_t *result;
    char *native;    
    int n;

    n = MultiByteToWideChar (CP_UTF8, 0, string, -1, NULL, 0);
    if (n < 0)
        return NULL;

    result = (wchar_t*)malloc ((n+1) * sizeof *result);
    if (!result)
        abort ();

    n = MultiByteToWideChar (CP_UTF8, 0, string, -1, result, n);
    if (n < 0) {
        free (result);
        return NULL;
    }

    n = WideCharToMultiByte (GetACP (), 0, result, -1, NULL, 0, NULL, NULL);
    if (n < 0)
        return NULL;

    native = (char*)malloc (n+1);
    if (!native)
        abort ();

    n = WideCharToMultiByte (GetACP (), 0, result, -1, native, n, NULL, NULL);
    if (n < 0) {
        free (result);
        return NULL;
    }

    free (result);
    return native;
}


/* Return the clipboard contents as a string or NULL
   if the clipboard does not contain text. */
char*
get_clip_text (HWND hwnd)
{
    HANDLE clipmem;
    char *cliptxt, *p;  
    int len;
    
    if (OpenClipboard (hwnd) == FALSE)
        return NULL;
    clipmem = GetClipboardData (CF_TEXT);
    if (clipmem == NULL) {
        p = NULL;
        goto leave;
    }
    cliptxt = (char *) GlobalLock (clipmem);
    if (cliptxt == NULL) {
        p = NULL;
        goto leave;
    }
    
    len =  strlen (cliptxt);
    p = xcalloc (1, len+1);
    memcpy (p, cliptxt, len);
    p[len] = '\0';
    GlobalUnlock (clipmem);
    
leave:
    CloseClipboard ();
    return p;
}


/* Set @text as the new clipboard content. */
int
set_clip_text (HWND hwnd, const char *text, int nbytes)
{    
    HANDLE clipmem;
    int rc = 0;
    char *p;
    
    if (OpenClipboard (hwnd) == FALSE)  
        return -1;
    EmptyClipboard ();

    clipmem = GlobalAlloc (GHND, nbytes + 1);
    if (clipmem == NULL)
        abort ();
    p = (char *) GlobalLock (clipmem);
    if (p == NULL) {
        rc = -1;
        goto leave;     
    }
    memcpy (p, text, nbytes);
    p[nbytes] = '\0';
    
    GlobalUnlock (clipmem);
    SetClipboardData (CF_TEXT, clipmem);
    GlobalFree (clipmem);
    
leave:
    CloseClipboard ();
    return 0;
}


/* Safe wrapper for calloc. */
void*
xcalloc (size_t n, size_t m)
{
    void *p = calloc (n, m);
    if (!p)
        abort ();
    return p;
}


/* Safe wrapper for strdup. */
char*
xstrdup (const char *s)
{
    char *p = strdup (s);
    if (!p)
        abort ();
    return p;
}


/* printf style message box. */
void
show_error (HWND hwnd, const char *caption, UINT type, const char *fmt, ...)
{
    char buffer[1024];
    va_list ptr;

    va_start (ptr, fmt);
    _vsnprintf (buffer, sizeof (buffer)-1, fmt, ptr);
    va_end (ptr);
    MessageBox (hwnd, buffer, caption, type);
}
1	twoaday	1	/* OEMisc.c - OE misc functions
2			* Copyright (C) 2006 Timo Schulz
3			*
4			* This file is part of GPGOE.
5			*
6			* GPGOE is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU Lesser General Public License as published by
8			* the Free Software Foundation; either version 2.1 of the License, or
9			* (at your option) any later version.
10			*
11			* GPGOE is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU Lesser General Public License
17			* along with GPGOE; if not, write to the Free Software Foundation,
18			* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
19			*/
20
21			#ifdef HAVE_CONFIG_H
22			#include <config.h>
23			#endif
24			#include <windows.h>
25			#include <stdio.h>
26			#include <stdarg.h>
27			#include <stdlib.h>
28
29			#include "gpgme.h"
30			#include "GPGOE.h"
31
32
33			/* Convert the UTF8 string @string into the native charset. */
34			char*
35			utf8_to_native (const char *string)
36			{
37			wchar_t *result;
38			char *native;
39			int n;
40
41			n = MultiByteToWideChar (CP_UTF8, 0, string, -1, NULL, 0);
42			if (n < 0)
43			return NULL;
44
45			result = (wchar_t)malloc ((n+1) sizeof *result);
46			if (!result)
47			abort ();
48
49			n = MultiByteToWideChar (CP_UTF8, 0, string, -1, result, n);
50			if (n < 0) {
51			free (result);
52			return NULL;
53			}
54
55			n = WideCharToMultiByte (GetACP (), 0, result, -1, NULL, 0, NULL, NULL);
56			if (n < 0)
57			return NULL;
58
59			native = (char*)malloc (n+1);
60			if (!native)
61			abort ();
62
63			n = WideCharToMultiByte (GetACP (), 0, result, -1, native, n, NULL, NULL);
64			if (n < 0) {
65			free (result);
66			return NULL;
67			}
68
69			free (result);
70			return native;
71			}
72
73
74			/* Return the clipboard contents as a string or NULL
75			if the clipboard does not contain text. */
76			char*
77			get_clip_text (HWND hwnd)
78			{
79			HANDLE clipmem;
80			char cliptxt, p;
81			int len;
82
83			if (OpenClipboard (hwnd) == FALSE)
84			return NULL;
85			clipmem = GetClipboardData (CF_TEXT);
86			if (clipmem == NULL) {
87			p = NULL;
88			goto leave;
89			}
90			cliptxt = (char *) GlobalLock (clipmem);
91			if (cliptxt == NULL) {
92			p = NULL;
93			goto leave;
94			}
95
96			len = strlen (cliptxt);
97			p = xcalloc (1, len+1);
98			memcpy (p, cliptxt, len);
99			p[len] = '\0';
100			GlobalUnlock (clipmem);
101
102			leave:
103			CloseClipboard ();
104			return p;
105			}
106
107
108			/* Set @text as the new clipboard content. */
109			int
110			set_clip_text (HWND hwnd, const char *text, int nbytes)
111			{
112			HANDLE clipmem;
113			int rc = 0;
114			char *p;
115
116			if (OpenClipboard (hwnd) == FALSE)
117			return -1;
118			EmptyClipboard ();
119
120			clipmem = GlobalAlloc (GHND, nbytes + 1);
121			if (clipmem == NULL)
122			abort ();
123			p = (char *) GlobalLock (clipmem);
124			if (p == NULL) {
125			rc = -1;
126			goto leave;
127			}
128			memcpy (p, text, nbytes);
129			p[nbytes] = '\0';
130
131			GlobalUnlock (clipmem);
132			SetClipboardData (CF_TEXT, clipmem);
133			GlobalFree (clipmem);
134
135			leave:
136			CloseClipboard ();
137			return 0;
138			}
139
140
141			/* Safe wrapper for calloc. */
142			void*
143			xcalloc (size_t n, size_t m)
144			{
145			void *p = calloc (n, m);
146			if (!p)
147			abort ();
148			return p;
149			}
150
151
152			/* Safe wrapper for strdup. */
153			char*
154			xstrdup (const char *s)
155			{
156			char *p = strdup (s);
157			if (!p)
158			abort ();
159			return p;
160			}
161
162
163			/* printf style message box. */
164			void
165			show_error (HWND hwnd, const char caption, UINT type, const char fmt, ...)
166			{
167			char buffer[1024];
168			va_list ptr;
169
170			va_start (ptr, fmt);
171			_vsnprintf (buffer, sizeof (buffer)-1, fmt, ptr);
172			va_end (ptr);
173			MessageBox (hwnd, buffer, caption, type);
174			}