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winex11: Add a helper function to export a Unicode string. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2016-09-27 21:24:25 +09:00
parent 1e7878cfa5
commit 8493fc782b
1 changed files with 41 additions and 56 deletions
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97
dlls/winex11.drv/clipboard.c
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@ -1094,6 +1094,39 @@ static BOOL export_data( Display *display, Window win, Atom prop, Atom target, H
}
/**************************************************************************
* string_from_unicode_text
*
* Convert CF_UNICODETEXT data to a string in the specified codepage.
*/
static char *string_from_unicode_text( UINT codepage, HANDLE handle, UINT *size )
{
UINT i, j;
char *str;
WCHAR *strW = GlobalLock( handle );
UINT lenW = GlobalSize( handle ) / sizeof(WCHAR);
DWORD len = WideCharToMultiByte( codepage, 0, strW, lenW, NULL, 0, NULL, NULL );
if ((str = HeapAlloc( GetProcessHeap(), 0, len )))
{
WideCharToMultiByte( codepage, 0, strW, lenW, str, len, NULL, NULL);
GlobalUnlock( handle );
/* remove carriage returns */
for (i = j = 0; i < len; i++)
{
if (str[i] == '\r' && (i == len - 1 || str[i + 1] == '\n')) continue;
str[j++] = str[i];
}
if (j && !str[j - 1]) j--; /* remove trailing null */
*size = j;
TRACE( "returning %s\n", debugstr_an( str, j ));
}
GlobalUnlock( handle );
return str;
}
/**************************************************************************
* export_string
*
@ -1135,38 +1168,12 @@ static BOOL export_string( Display *display, Window win, Atom prop, Atom target,
*/
static BOOL export_utf8_string( Display *display, Window win, Atom prop, Atom target, HANDLE handle )
{
UINT i, j;
UINT size;
LPSTR text, lpstr;
LPWSTR uni_text = GlobalLock( handle );
char *text = string_from_unicode_text( CP_UTF8, handle, &size );
size = WideCharToMultiByte(CP_UTF8, 0, uni_text, -1, NULL, 0, NULL, NULL);
text = HeapAlloc(GetProcessHeap(), 0, size);
if (!text)
{
GlobalUnlock( handle );
return FALSE;
}
WideCharToMultiByte(CP_UTF8, 0, uni_text, -1, text, size, NULL, NULL);
GlobalUnlock( handle );
/* remove carriage returns */
lpstr = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size--);
if (lpstr == NULL)
{
HeapFree(GetProcessHeap(), 0, text);
return FALSE;
}
for (i = 0,j = 0; i < size && text[i]; i++)
{
if (text[i] == '\r' && (text[i+1] == '\n' || text[i+1] == '\0'))
continue;
lpstr[j++] = text[i];
}
put_property( display, win, prop, target, 8, lpstr, j );
HeapFree(GetProcessHeap(), 0, lpstr);
HeapFree(GetProcessHeap(), 0, text);
if (!text) return FALSE;
put_property( display, win, prop, target, 8, text, size );
HeapFree( GetProcessHeap(), 0, text );
GlobalUnlock( handle );
return TRUE;
}
@ -1179,47 +1186,25 @@ static BOOL export_utf8_string( Display *display, Window win, Atom prop, Atom ta
*/
static BOOL export_compound_text( Display *display, Window win, Atom prop, Atom target, HANDLE handle )
{
char* lpstr;
XTextProperty textprop;
XICCEncodingStyle style;
UINT i, j;
UINT size;
LPWSTR uni_text = GlobalLock( handle );
size = WideCharToMultiByte(CP_UNIXCP, 0, uni_text, -1, NULL, 0, NULL, NULL);
lpstr = HeapAlloc(GetProcessHeap(), 0, size);
if (!lpstr)
{
GlobalUnlock( handle );
return FALSE;
}
WideCharToMultiByte(CP_UNIXCP, 0, uni_text, -1, lpstr, size, NULL, NULL);
/* remove carriage returns */
for (i = 0, j = 0; i < size && lpstr[i]; i++)
{
if (lpstr[i] == '\r' && (lpstr[i+1] == '\n' || lpstr[i+1] == '\0'))
continue;
lpstr[j++] = lpstr[i];
}
lpstr[j]='\0';
GlobalUnlock( handle );
char *text = string_from_unicode_text( CP_UNIXCP, handle, &size );
if (!text) return FALSE;
if (target == x11drv_atom(COMPOUND_TEXT))
style = XCompoundTextStyle;
else
style = XStdICCTextStyle;
/* Update the X property */
if (XmbTextListToTextProperty( display, &lpstr, 1, style, &textprop ) == Success)
if (XmbTextListToTextProperty( display, &text, 1, style, &textprop ) == Success)
{
XSetTextProperty( display, win, &textprop, prop );
XFree( textprop.value );
}
HeapFree(GetProcessHeap(), 0, lpstr);
HeapFree( GetProcessHeap(), 0, text );
return TRUE;
}