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-rw-r--r--vcl/inc/win/wingdiimpl.hxx51
1 files changed, 51 insertions, 0 deletions
diff --git a/vcl/inc/win/wingdiimpl.hxx b/vcl/inc/win/wingdiimpl.hxx
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+++ b/vcl/inc/win/wingdiimpl.hxx
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+/* -*- 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/.
+ */
+
+#ifndef INCLUDED_VCL_INC_WIN_WINGDIIMPL_HXX
+#define INCLUDED_VCL_INC_WIN_WINGDIIMPL_HXX
+
+#include <win/salgdi.h>
+#include <ControlCacheKey.hxx>
+
+class ControlCacheKey;
+
+// Base class for some functionality that OpenGL/Skia/GDI backends must each implement.
+class WinSalGraphicsImplBase
+{
+public:
+ virtual ~WinSalGraphicsImplBase() {}
+
+ // If true is returned, the following functions are used for drawing controls.
+ virtual bool UseRenderNativeControl() const { return false; }
+ virtual bool TryRenderCachedNativeControl(const ControlCacheKey& /*rControlCacheKey*/,
+ int /*nX*/, int /*nY*/)
+ {
+ abort();
+ }
+ virtual bool RenderAndCacheNativeControl(CompatibleDC& /*rWhite*/, CompatibleDC& /*rBlack*/,
+ int /*nX*/, int /*nY*/,
+ ControlCacheKey& /*aControlCacheKey*/)
+ {
+ abort();
+ }
+
+ virtual void ClearDevFontCache() {}
+
+ virtual void Flush() {}
+
+ // Implementation for WinSalGraphics::DrawTextLayout().
+ // Returns true if handled, if false, then WinSalGraphics will handle it itself.
+ virtual bool DrawTextLayout(const GenericSalLayout&) { return false; }
+
+ virtual void ClearNativeControlCache() {}
+};
+
+#endif // INCLUDED_VCL_INC_WIN_WINGDIIMPL_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */