1 files changed, 112 insertions, 0 deletions
diff --git a/slideshow/source/engine/slidebitmap.cxx b/slideshow/source/engine/slidebitmap.cxx
new file mode 100644
index 000000000..368cb070c
--- /dev/null
+++ b/slideshow/source/engine/slidebitmap.cxx
@@ -0,0 +1,112 @@
+/* -*- 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 <tools/diagnose_ex.h>
+#include <slidebitmap.hxx>
+
+#include <com/sun/star/rendering/XCanvas.hpp>
+#include <com/sun/star/rendering/XBitmap.hpp>
+
+#include <basegfx/matrix/b2dhommatrix.hxx>
+#include <basegfx/matrix/b2dhommatrixtools.hxx>
+
+#include <canvas/canvastools.hxx>
+#include <basegfx/utils/canvastools.hxx>
+
+
+using namespace ::com::sun::star;
+
+namespace slideshow::internal
+{
+
+        SlideBitmap::SlideBitmap( const ::cppcanvas::BitmapSharedPtr& rBitmap ) :
+            maOutputPos(),
+            maClipPoly(),
+            mxBitmap()
+        {
+            if( rBitmap )
+                mxBitmap = rBitmap->getUNOBitmap();
+
+            ENSURE_OR_THROW( mxBitmap.is(), "SlideBitmap::SlideBitmap(): Invalid bitmap" );
+        }
+
+        bool SlideBitmap::draw( const ::cppcanvas::CanvasSharedPtr& rCanvas ) const
+        {
+            ENSURE_OR_RETURN_FALSE( rCanvas && rCanvas->getUNOCanvas().is(),
+                               "SlideBitmap::draw(): Invalid canvas" );
+
+            // selectively only copy the transformation from current viewstate,
+            // don't want no clipping here.
+            rendering::ViewState aViewState;
+            aViewState.AffineTransform = rCanvas->getViewState().AffineTransform;
+
+            rendering::RenderState aRenderState;
+            ::canvas::tools::initRenderState( aRenderState );
+
+            const basegfx::B2DHomMatrix aTranslation(basegfx::utils::createTranslateB2DHomMatrix(maOutputPos));
+            ::canvas::tools::setRenderStateTransform( aRenderState, aTranslation );
+
+            try
+            {
+                if( maClipPoly.count() )
+                {
+                    // TODO(P1): Buffer the clip polygon
+                    aRenderState.Clip =
+                        ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon(
+                            rCanvas->getUNOCanvas()->getDevice(),
+                            maClipPoly );
+                }
+
+                rCanvas->getUNOCanvas()->drawBitmap( mxBitmap,
+                                                     aViewState,
+                                                     aRenderState );
+            }
+            catch( uno::Exception& )
+            {
+                TOOLS_WARN_EXCEPTION( "slideshow", "" );
+                return false;
+            }
+
+            return true;
+        }
+
+        ::basegfx::B2ISize SlideBitmap::getSize() const
+        {
+            return ::basegfx::unotools::b2ISizeFromIntegerSize2D( mxBitmap->getSize() );
+        }
+
+        void SlideBitmap::move( const ::basegfx::B2DPoint& rNewPos )
+        {
+            maOutputPos = rNewPos;
+        }
+
+        void SlideBitmap::clip( const ::basegfx::B2DPolyPolygon& rClipPoly )
+        {
+            maClipPoly = rClipPoly;
+        }
+
+        const css::uno::Reference< css::rendering::XBitmap >&  SlideBitmap::getXBitmap() const
+        {
+        return mxBitmap;
+        }
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */