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Do not assume that double byte font == unicode font.

This commit is contained in:
Dmitry Timoshkov 2000-06-18 19:28:42 +00:00 committed by Alexandre Julliard
parent 326e2ba5a1
commit 4d4e121759
1 changed files with 43 additions and 11 deletions
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42
graphics/x11drv/text.c
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@ -14,6 +14,7 @@
#include <math.h>
#include "windef.h"
#include "winnls.h"
#include "dc.h"
#include "gdi.h"
#include "heap.h"
@ -34,24 +35,55 @@ DEFAULT_DEBUG_CHANNEL(text);
static XChar2b *unicode_to_char2b( LPCWSTR wstr, UINT count, UINT codepage, UINT def_char )
{
XChar2b *str2b;
UINT i, total_size = count * (sizeof(XChar2b) + (codepage ? sizeof(WCHAR) : 0));
UINT i;
if (!(str2b = HeapAlloc( GetProcessHeap(), 0, total_size ))) return NULL;
if (!(str2b = HeapAlloc( GetProcessHeap(), 0, count * sizeof(XChar2b) )))
return NULL;
if (codepage != 0) /* a one byte font */
if (codepage != 0) /* multibyte font */
{
BYTE *str = (BYTE *)(str2b + count);
BYTE *str;
char ch = def_char;
CPINFO cpinfo;
/* allocate the worst case count * 2 bytes */
if (!(str = HeapAlloc( GetProcessHeap(), 0, count * 2 )))
{
HeapFree( GetProcessHeap(), 0, str2b );
return NULL;
}
/* we have to convert from unicode to codepage first */
WideCharToMultiByte( codepage, 0, wstr, count, str, count, &ch, NULL );
GetCPInfo( codepage, &cpinfo );
if (cpinfo.MaxCharSize == 1)
{
for (i = 0; i < count; i++)
{
str2b[i].byte1 = 0;
str2b[i].byte2 = str[i];
}
}
else /* codepage 0 -> two byte font */
else
{
XChar2b *str2b_dst = str2b;
for (i = 0; i < count; i++, str2b_dst++)
{
str2b_dst->byte2 = str[i];
if (IsDBCSLeadByteEx( codepage, str[i] ))
{
str2b_dst->byte1 = str[i + 1];
i++;
}
else
str2b_dst->byte1 = 0;
}
}
HeapFree( GetProcessHeap(), 0, str );
}
else /* codepage 0 -> unicode font */
{
for (i = 0; i < count; i++)
{