1 files changed, 133 insertions, 0 deletions
diff --git a/canvas/source/vcl/canvas.cxx b/canvas/source/vcl/canvas.cxx
new file mode 100644
index 000000000..4713f8ab9
--- /dev/null
+++ b/canvas/source/vcl/canvas.cxx
@@ -0,0 +1,133 @@
+/* -*- 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 <com/sun/star/lang/NoSupportException.hpp>
+#include <sal/log.hxx>
+#include <tools/diagnose_ex.h>
+#include <vcl/outdev.hxx>
+
+#include "canvas.hxx"
+
+using namespace ::com::sun::star;
+
+namespace vclcanvas
+{
+    namespace
+    {
+        class OutDevHolder : public OutDevProvider
+        {
+        public:
+            OutDevHolder(const OutDevHolder&) = delete;
+            const OutDevHolder& operator=(const OutDevHolder&) = delete;
+
+            explicit OutDevHolder( OutputDevice& rOutDev ) :
+                mrOutDev(rOutDev)
+            {}
+
+        private:
+            virtual OutputDevice&       getOutDev() override { return mrOutDev; }
+            virtual const OutputDevice& getOutDev() const override { return mrOutDev; }
+
+            // TODO(Q2): Lifetime issue. This _only_ works reliably,
+            // if disposing the Canvas correctly disposes all
+            // entities which hold this pointer.
+            OutputDevice& mrOutDev;
+        };
+    }
+
+    Canvas::Canvas( const uno::Sequence< uno::Any >&                aArguments,
+                    const uno::Reference< uno::XComponentContext >& /*rxContext*/ ) :
+        maArguments(aArguments)
+    {
+    }
+
+    void Canvas::initialize()
+    {
+        // #i64742# Only perform initialization when not in probe mode
+        if( !maArguments.hasElements() )
+            return;
+
+        /* maArguments:
+           0: ptr to creating instance (Window or VirtualDevice)
+           1: current bounds of creating instance
+           2: bool, denoting always on top state for Window (always false for VirtualDevice)
+           3: XWindow for creating Window (or empty for VirtualDevice)
+           4: SystemGraphicsData as a streamed Any
+         */
+        SolarMutexGuard aGuard;
+
+        SAL_INFO("canvas.vcl", "VCLCanvas::initialize called" );
+
+        ENSURE_ARG_OR_THROW( maArguments.getLength() >= 5 &&
+                             maArguments[0].getValueTypeClass() == uno::TypeClass_HYPER,
+                             "Canvas::initialize: wrong number of arguments, or wrong types" );
+
+        sal_Int64 nPtr = 0;
+        maArguments[0] >>= nPtr;
+
+        OutputDevice* pOutDev = reinterpret_cast<OutputDevice*>(nPtr);
+        if( !pOutDev )
+            throw lang::NoSupportException("Passed OutDev invalid!", nullptr);
+
+        OutDevProviderSharedPtr pOutdevProvider = std::make_shared<OutDevHolder>(*pOutDev);
+
+        // setup helper
+        maDeviceHelper.init( pOutdevProvider );
+        maCanvasHelper.init( *this,
+                             pOutdevProvider,
+                             true,   // OutDev state preservation
+                             false ); // no alpha on surface
+
+        maArguments.realloc(0);
+    }
+
+    Canvas::~Canvas()
+    {
+        SAL_INFO("canvas.vcl", "VCLCanvas destroyed" );
+    }
+
+    void Canvas::disposeThis()
+    {
+        SolarMutexGuard aGuard;
+
+        // forward to parent
+        CanvasBaseT::disposeThis();
+    }
+
+    OUString SAL_CALL Canvas::getServiceName(  )
+    {
+        return CANVAS_SERVICE_NAME;
+    }
+
+    bool Canvas::repaint( const GraphicObjectSharedPtr& rGrf,
+                          const rendering::ViewState&   viewState,
+                          const rendering::RenderState& renderState,
+                          const ::Point&                rPt,
+                          const ::Size&                 rSz,
+                          const GraphicAttr&            rAttr ) const
+    {
+        SolarMutexGuard aGuard;
+
+        return maCanvasHelper.repaint( rGrf, viewState, renderState, rPt, rSz, rAttr );
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */