1 files changed, 58 insertions, 0 deletions
diff --git a/vcl/inc/salvd.hxx b/vcl/inc/salvd.hxx
new file mode 100644
index 000000000..8a6fe144c
--- /dev/null
+++ b/vcl/inc/salvd.hxx
@@ -0,0 +1,58 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_VCL_INC_SALVD_HXX
+#define INCLUDED_VCL_INC_SALVD_HXX
+
+#include "salgeom.hxx"
+
+class SalGraphics;
+
+/// A non-visible drawable/buffer (e.g. an X11 Pixmap).
+class VCL_PLUGIN_PUBLIC SalVirtualDevice
+        : public SalGeometryProvider
+{
+public:
+    SalVirtualDevice() {}
+    virtual ~SalVirtualDevice() override;
+
+    // SalGeometryProvider
+    virtual bool IsOffScreen() const override { return true; }
+
+    // SalGraphics or NULL, but two Graphics for all SalVirtualDevices
+    // must be returned
+    virtual SalGraphics*    AcquireGraphics() = 0;
+    virtual void            ReleaseGraphics( SalGraphics* pGraphics ) = 0;
+
+    // Set new size, without saving the old contents
+    virtual bool            SetSize( long nNewDX, long nNewDY ) = 0;
+
+    // Set new size using a buffer at the given address
+    virtual bool            SetSizeUsingBuffer( long nNewDX, long nNewDY,
+                                                sal_uInt8 * /* pBuffer */)
+        {
+            // Only the headless virtual device has an implementation that uses
+            // pBuffer (and bTopDown).
+            return SetSize( nNewDX, nNewDY );
+        }
+};
+
+#endif // INCLUDED_VCL_INC_SALVD_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */