1 files changed, 163 insertions, 0 deletions
diff --git a/canvas/source/cairo/cairo_canvasbitmap.cxx b/canvas/source/cairo/cairo_canvasbitmap.cxx
new file mode 100644
index 000000000..fa33b83eb
--- /dev/null
+++ b/canvas/source/cairo/cairo_canvasbitmap.cxx
@@ -0,0 +1,163 @@
+/* -*- 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 <sal/log.hxx>
+
+#include <cppuhelper/supportsservice.hxx>
+#include <tools/diagnose_ex.h>
+#include <utility>
+#include <vcl/bitmapex.hxx>
+#include <vcl/BitmapTools.hxx>
+
+#include <cairo.h>
+
+#include "cairo_canvasbitmap.hxx"
+
+using namespace ::cairo;
+using namespace ::com::sun::star;
+
+namespace cairocanvas
+{
+    CanvasBitmap::CanvasBitmap( const ::basegfx::B2ISize&  rSize,
+                                SurfaceProviderRef         rSurfaceProvider,
+                                rendering::XGraphicDevice* pDevice,
+                                bool                       bHasAlpha ) :
+        mpSurfaceProvider(std::move( rSurfaceProvider )),
+        maSize(rSize),
+        mbHasAlpha(bHasAlpha)
+    {
+        ENSURE_OR_THROW( mpSurfaceProvider.is(),
+                          "CanvasBitmap::CanvasBitmap(): Invalid surface or device" );
+
+        SAL_INFO(
+            "canvas.cairo",
+            "bitmap size: " << rSize.getX() << "x" << rSize.getY());
+
+        mpBufferSurface = mpSurfaceProvider->createSurface( rSize, bHasAlpha ? CAIRO_CONTENT_COLOR_ALPHA : CAIRO_CONTENT_COLOR );
+        mpBufferCairo = mpBufferSurface->getCairo();
+
+        maCanvasHelper.init( rSize, *mpSurfaceProvider, pDevice );
+        maCanvasHelper.setSurface( mpBufferSurface, bHasAlpha );
+
+        // clear bitmap to 100% transparent
+        maCanvasHelper.clear();
+    }
+
+    void CanvasBitmap::disposeThis()
+    {
+        mpSurfaceProvider.clear();
+
+        mpBufferCairo.reset();
+        mpBufferSurface.reset();
+
+        // forward to parent
+        CanvasBitmap_Base::disposeThis();
+    }
+
+    SurfaceSharedPtr CanvasBitmap::getSurface()
+    {
+        return mpBufferSurface;
+    }
+
+    SurfaceSharedPtr CanvasBitmap::createSurface( const ::basegfx::B2ISize& rSize, int aContent )
+    {
+        return mpSurfaceProvider->createSurface(rSize,aContent);
+    }
+
+    SurfaceSharedPtr CanvasBitmap::createSurface( ::Bitmap& rBitmap )
+    {
+        return mpSurfaceProvider->createSurface(rBitmap);
+    }
+
+    SurfaceSharedPtr CanvasBitmap::changeSurface()
+    {
+        // non-modifiable surface here
+        return SurfaceSharedPtr();
+    }
+
+    OutputDevice* CanvasBitmap::getOutputDevice()
+    {
+        return mpSurfaceProvider->getOutputDevice();
+    }
+
+    bool CanvasBitmap::repaint( const SurfaceSharedPtr&       pSurface,
+                                const rendering::ViewState&   viewState,
+                                const rendering::RenderState& renderState )
+    {
+        return maCanvasHelper.repaint( pSurface, viewState, renderState );
+    }
+
+    uno::Any SAL_CALL CanvasBitmap::getFastPropertyValue( sal_Int32 nHandle )
+    {
+        uno::Any aRV( sal_Int32(0) );
+        // 0 ... get BitmapEx
+        // 1 ... get Pixbuf with bitmap RGB content
+        // 2 ... return nothing (empty Any)
+        switch( nHandle )
+        {
+            case 0:
+            {
+                aRV <<= reinterpret_cast<sal_Int64>( nullptr );
+                if ( !mbHasAlpha )
+                    break;
+
+                BitmapEx* pBitmapEx = vcl::bitmap::CreateFromCairoSurface(
+                                          ::Size( maSize.getX(), maSize.getY() ),
+                                          getSurface()->getCairoSurface().get());
+                if (pBitmapEx)
+                    aRV <<= reinterpret_cast<sal_Int64>( pBitmapEx );
+
+                break;
+            }
+            case 1:
+            {
+                aRV = getOutputDevice()->GetNativeSurfaceHandle(mpBufferSurface, maSize);
+                break;
+            }
+            case 2:
+            {
+                // Always return nothing - for the RGB surface support.
+                // Alpha code paths go via the above case 0.
+                aRV = uno::Any();
+                break;
+            }
+        }
+
+        return aRV;
+    }
+
+    OUString SAL_CALL CanvasBitmap::getImplementationName(  )
+    {
+        return "CairoCanvas.CanvasBitmap";
+    }
+
+    sal_Bool SAL_CALL CanvasBitmap::supportsService( const OUString& ServiceName )
+    {
+        return cppu::supportsService( this, ServiceName );
+    }
+
+    uno::Sequence< OUString > SAL_CALL CanvasBitmap::getSupportedServiceNames(  )
+    {
+        return { "com.sun.star.rendering.CanvasBitmap" };
+    }
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */