1 files changed, 96 insertions, 0 deletions
diff --git a/canvas/source/tools/cachedprimitivebase.cxx b/canvas/source/tools/cachedprimitivebase.cxx
new file mode 100644
index 000000000..652e9c900
--- /dev/null
+++ b/canvas/source/tools/cachedprimitivebase.cxx
@@ -0,0 +1,96 @@
+/* -*- 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 .
+ */
+
+#include <sal/config.h>
+
+#include <basegfx/matrix/b2dhommatrix.hxx>
+#include <basegfx/utils/canvastools.hxx>
+#include <com/sun/star/rendering/RepaintResult.hpp>
+#include <cppuhelper/supportsservice.hxx>
+
+#include <base/cachedprimitivebase.hxx>
+#include <utility>
+
+
+using namespace ::com::sun::star;
+
+namespace canvas
+{
+    CachedPrimitiveBase::CachedPrimitiveBase( rendering::ViewState                    aUsedViewState,
+                                              uno::Reference< rendering::XCanvas >    xTarget ) :
+        CachedPrimitiveBase_Base( m_aMutex ),
+        maUsedViewState(std::move( aUsedViewState )),
+        mxTarget(std::move( xTarget ))
+    {
+    }
+
+    CachedPrimitiveBase::~CachedPrimitiveBase()
+    {
+    }
+
+    void SAL_CALL CachedPrimitiveBase::disposing()
+    {
+        ::osl::MutexGuard aGuard( m_aMutex );
+
+        maUsedViewState.Clip.clear();
+        mxTarget.clear();
+    }
+
+    sal_Int8 SAL_CALL CachedPrimitiveBase::redraw( const rendering::ViewState& aState )
+    {
+        ::basegfx::B2DHomMatrix aUsedTransformation;
+        ::basegfx::B2DHomMatrix aNewTransformation;
+
+        ::basegfx::unotools::homMatrixFromAffineMatrix( aUsedTransformation,
+                                                        maUsedViewState.AffineTransform );
+        ::basegfx::unotools::homMatrixFromAffineMatrix( aNewTransformation,
+                                                        aState.AffineTransform );
+
+        const bool bSameViewTransforms( aUsedTransformation == aNewTransformation );
+
+        if( !bSameViewTransforms )
+        {
+            // differing transformations, don't try to draft the
+            // output, just plain fail here.
+            return rendering::RepaintResult::FAILED;
+        }
+
+        return doRedraw( aState,
+                         maUsedViewState,
+                         mxTarget,
+                         bSameViewTransforms );
+    }
+
+    OUString SAL_CALL CachedPrimitiveBase::getImplementationName(  )
+    {
+        return "canvas::CachedPrimitiveBase";
+    }
+
+    sal_Bool SAL_CALL CachedPrimitiveBase::supportsService( const OUString& ServiceName )
+    {
+        return cppu::supportsService(this, ServiceName);
+    }
+
+    uno::Sequence< OUString > SAL_CALL CachedPrimitiveBase::getSupportedServiceNames(  )
+    {
+        return { "com.sun.star.rendering.CachedBitmap" };
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */