msado15: Implement _Stream_ReadText and _Stream_WriteText.

dlls/msado15/stream.c

@@ -400,14 +400,64 @@ static HRESULT WINAPI stream_LoadFromFile( _Stream *iface, BSTR filename )
 
 static HRESULT WINAPI stream_ReadText( _Stream *iface, LONG len, BSTR *ret )
 {
-    FIXME( "%p, %d, %p\n", iface, len, ret );
-    return E_NOTIMPL;
+    struct stream *stream = impl_from_Stream( iface );
+    BSTR str;
+
+    TRACE( "%p, %d, %p\n", stream, len, ret );
+    if (len == adReadLine)
+    {
+        FIXME( "adReadLine not supported\n" );
+        return E_NOTIMPL;
+    }
+    if (stream->charset && wcscmp( stream->charset, L"Unicode" ))
+    {
+        FIXME( "charset %s not supported\n", debugstr_w(stream->charset) );
+        return E_NOTIMPL;
+    }
+
+    if (stream->type != adTypeText) return MAKE_ADO_HRESULT( adErrIllegalOperation );
+    if (len < adReadLine) return MAKE_ADO_HRESULT( adErrInvalidArgument );
+
+    if (len == adReadAll) len = (stream->size - stream->pos) / sizeof(WCHAR);
+    else len = min( len, stream->size - stream->pos / sizeof(WCHAR) );
+
+    if (!(str = SysAllocStringLen( NULL, len ))) return E_OUTOFMEMORY;
+    memcpy( str, stream->buf + stream->pos, len * sizeof(WCHAR) );
+    str[len] = 0;
+
+    stream->pos += len * sizeof(WCHAR);
+
+    *ret = str;
+    return S_OK;
 }
 
 static HRESULT WINAPI stream_WriteText( _Stream *iface, BSTR data, StreamWriteEnum options )
 {
-    FIXME( "%p, %s, %u\n", iface, debugstr_w(data), options );
-    return E_NOTIMPL;
+    struct stream *stream = impl_from_Stream( iface );
+    HRESULT hr;
+    LONG size;
+
+    TRACE( "%p, %s, %u\n", stream, debugstr_w(data), options );
+    if (options != adWriteChar)
+    {
+        FIXME( "options %u not supported\n", options );
+        return E_NOTIMPL;
+    }
+    if (stream->charset && wcscmp( stream->charset, L"Unicode" ))
+    {
+        FIXME( "charset %s not supported\n", debugstr_w(stream->charset) );
+        return E_NOTIMPL;
+    }
+
+    if (stream->type != adTypeText) return MAKE_ADO_HRESULT( adErrIllegalOperation );
+
+    size = (lstrlenW( data ) + 1) * sizeof(WCHAR);
+    if ((hr = resize_buffer( stream, stream->size + size )) != S_OK) return hr;
+
+    memcpy( stream->buf + stream->pos, data, size );
+    stream->pos += size;
+
+    return S_OK;
 }
 
 static HRESULT WINAPI stream_Cancel( _Stream *iface )

dlls/msado15/tests/msado15.c

@@ -162,11 +162,54 @@ static void test_Stream(void)
     hr = _Stream_Read( stream, 2, &val );
     ok( hr == MAKE_ADO_HRESULT( adErrIllegalOperation ), "got %08x\n", hr );
 
+    hr = _Stream_ReadText( stream, 2, &str );
+    ok( hr == S_OK, "got %08x\n", hr );
+    ok( !str[0], "got %s\n", wine_dbgstr_w(str) );
+    SysFreeString( str );
+
     pos = -1;
     hr = _Stream_get_Position( stream, &pos );
     ok( hr == S_OK, "got %08x\n", hr );
     ok( !pos, "got %d\n", pos );
 
+    str = SysAllocString( L"test" );
+    hr = _Stream_WriteText( stream, str, adWriteChar );
+    ok( hr == S_OK, "got %08x\n", hr );
+    SysFreeString( str );
+
+    hr = _Stream_ReadText( stream, adReadAll, &str );
+    ok( hr == S_OK, "got %08x\n", hr );
+    ok( !str[0], "got %s\n", wine_dbgstr_w(str) );
+    SysFreeString( str );
+
+    hr = _Stream_put_Position( stream, 0 );
+    ok( hr == S_OK, "got %08x\n", hr );
+    hr = _Stream_ReadText( stream, adReadAll, &str );
+    ok( hr == S_OK, "got %08x\n", hr );
+    ok( !lstrcmpW( str, L"test" ), "got %s\n", wine_dbgstr_w(str) );
+    SysFreeString( str );
+
+    pos = -1;
+    hr = _Stream_get_Position( stream, &pos );
+    ok( hr == S_OK, "got %08x\n", hr );
+    ok( pos == 10, "got %d\n", pos );
+
+    eos = VARIANT_FALSE;
+    hr = _Stream_get_EOS( stream, &eos );
+    ok( hr == S_OK, "got %08x\n", hr );
+    ok( eos == VARIANT_TRUE, "got %04x\n", eos );
+
+    hr = _Stream_put_Position( stream, 6 );
+    ok( hr == S_OK, "got %08x\n", hr );
+
+    size = -1;
+    hr = _Stream_get_Size( stream, &size );
+    ok( hr == S_OK, "got %08x\n", hr );
+    ok( size == 10, "got %d\n", size );
+
+    hr = _Stream_put_Position( stream, 2 );
+    ok( hr == S_OK, "got %08x\n", hr );
+
     hr = _Stream_Close( stream );
     ok( hr == S_OK, "got %08x\n", hr );
 
@@ -191,6 +234,14 @@ static void test_Stream(void)
     hr = _Stream_Open( stream, missing, adModeUnknown, adOpenStreamUnspecified, NULL, NULL );
     ok( hr == S_OK, "got %08x\n", hr );
 
+    hr = _Stream_ReadText( stream, adReadAll, &str );
+    ok( hr == MAKE_ADO_HRESULT( adErrIllegalOperation ), "got %08x\n", hr );
+
+    str = SysAllocString( L"test" );
+    hr = _Stream_WriteText( stream, str, adWriteChar );
+    ok( hr == MAKE_ADO_HRESULT( adErrIllegalOperation ), "got %08x\n", hr );
+    SysFreeString( str );
+
     VariantInit( &val );
     hr = _Stream_Read( stream, 1, &val );
     ok( hr == S_OK, "got %08x\n", hr );