1 files changed, 116 insertions, 0 deletions
diff --git a/cppcanvas/source/wrapper/implcanvas.cxx b/cppcanvas/source/wrapper/implcanvas.cxx
new file mode 100644
index 000000000..3a186404c
--- /dev/null
+++ b/cppcanvas/source/wrapper/implcanvas.cxx
@@ -0,0 +1,116 @@
+/* -*- 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 <basegfx/matrix/b2dhommatrix.hxx>
+#include <basegfx/polygon/b2dpolypolygon.hxx>
+#include <basegfx/utils/canvastools.hxx>
+
+#include <com/sun/star/rendering/XCanvas.hpp>
+
+#include <canvas/canvastools.hxx>
+
+#include "implcanvas.hxx"
+
+
+using namespace ::com::sun::star;
+
+namespace cppcanvas::internal
+{
+
+        ImplCanvas::ImplCanvas( const uno::Reference< rendering::XCanvas >& xCanvas ) :
+            maViewState(),
+            maClipPolyPolygon(),
+            mxCanvas( xCanvas )
+        {
+            OSL_ENSURE( mxCanvas.is(), "Canvas::Canvas() invalid XCanvas" );
+
+            ::canvas::tools::initViewState( maViewState );
+        }
+
+        ImplCanvas::~ImplCanvas()
+        {
+        }
+
+        void ImplCanvas::setTransformation( const ::basegfx::B2DHomMatrix& rMatrix )
+        {
+            ::canvas::tools::setViewStateTransform( maViewState, rMatrix );
+        }
+
+        ::basegfx::B2DHomMatrix ImplCanvas::getTransformation() const
+        {
+            ::basegfx::B2DHomMatrix aMatrix;
+            return ::canvas::tools::getViewStateTransform( aMatrix,
+                                                           maViewState );
+        }
+
+        void ImplCanvas::setClip( const ::basegfx::B2DPolyPolygon& rClipPoly )
+        {
+            // TODO(T3): not thread-safe. B2DPolyPolygon employs copy-on-write
+            maClipPolyPolygon = rClipPoly;
+            maViewState.Clip.clear();
+        }
+
+        void ImplCanvas::setClip()
+        {
+            maClipPolyPolygon.reset();
+            maViewState.Clip.clear();
+        }
+
+        ::basegfx::B2DPolyPolygon const* ImplCanvas::getClip() const
+        {
+            return !maClipPolyPolygon ? nullptr : &(*maClipPolyPolygon);
+        }
+
+        CanvasSharedPtr ImplCanvas::clone() const
+        {
+            return std::make_shared<ImplCanvas>( *this );
+        }
+
+        void ImplCanvas::clear() const
+        {
+            OSL_ENSURE( mxCanvas.is(), "ImplCanvas::clear(): Invalid XCanvas" );
+            mxCanvas->clear();
+        }
+
+        uno::Reference< rendering::XCanvas > ImplCanvas::getUNOCanvas() const
+        {
+            OSL_ENSURE( mxCanvas.is(), "ImplCanvas::getUNOCanvas(): Invalid XCanvas" );
+
+            return mxCanvas;
+        }
+
+        rendering::ViewState ImplCanvas::getViewState() const
+        {
+            if( maClipPolyPolygon && !maViewState.Clip.is() )
+            {
+                if( !mxCanvas.is() )
+                    return maViewState;
+
+                maViewState.Clip = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon(
+                    mxCanvas->getDevice(),
+                    *maClipPolyPolygon );
+            }
+
+            return maViewState;
+        }
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */