vcl/source/graphic/UnoGraphicObject.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <memory>
  21 #include <cppuhelper/implbase.hxx>
  22 #include <cppuhelper/supportsservice.hxx>
  23 #include <com/sun/star/graphic/XGraphicObject.hpp>
  24 #include <com/sun/star/lang/XServiceInfo.hpp>
  25 #include <com/sun/star/uno/XComponentContext.hpp>
  26 #include <vcl/GraphicObject.hxx>
  27 #include <mutex>
  28
  29 using namespace css;
  30
  31 namespace {
  32
  33 typedef ::cppu::WeakImplHelper<graphic::XGraphicObject, css::lang::XServiceInfo> GraphicObject_BASE;
  34
  35  // Simple uno wrapper around the GraphicObject class to allow basic
  36  // access. ( and solves a horrible cyclic link problem between
  37  // goodies/toolkit/extensions )
  38 class GraphicObjectImpl : public GraphicObject_BASE
  39 {
  40      std::mutex m_aMutex;
  41      std::optional<GraphicObject> mpGraphicObject;
  42
  43 public:
  44     /// @throws uno::RuntimeException
  45     explicit GraphicObjectImpl(uno::Sequence<uno::Any> const & rArgs);
  46
  47      // XGraphicObject
  48     virtual uno::Reference<graphic::XGraphic> SAL_CALL getGraphic() override;
  49     virtual void SAL_CALL setGraphic(uno::Reference<graphic::XGraphic> const & rxGraphic) override;
  50
  51     virtual OUString SAL_CALL getImplementationName() override
  52     {
  53         return u"com.sun.star.graphic.GraphicObject"_ustr;
  54     }
  55
  56     virtual sal_Bool SAL_CALL supportsService(OUString const & ServiceName) override
  57     {
  58         return cppu::supportsService(this, ServiceName);
  59     }
  60
  61     virtual css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override
  62     {
  63         return { u"com.sun.star.graphic.GraphicObject"_ustr };
  64     }
  65 };
  66
  67 GraphicObjectImpl::GraphicObjectImpl(const uno::Sequence<uno::Any>& /*rArgs*/)
  68 {
  69     mpGraphicObject.emplace();
  70 }
  71
  72 uno::Reference<graphic::XGraphic> SAL_CALL GraphicObjectImpl::getGraphic()
  73 {
  74     std::scoped_lock aGuard(m_aMutex);
  75
  76     if (!mpGraphicObject)
  77         throw uno::RuntimeException();
  78     return mpGraphicObject->GetGraphic().GetXGraphic();
  79 }
  80
  81 void SAL_CALL GraphicObjectImpl::setGraphic(uno::Reference<graphic::XGraphic> const & rxGraphic)
  82 {
  83     std::scoped_lock aGuard(m_aMutex);
  84
  85     if (!mpGraphicObject)
  86         throw uno::RuntimeException();
  87     Graphic aGraphic(rxGraphic);
  88     mpGraphicObject->SetGraphic(aGraphic);
  89 }
  90
  91 } // end anonymous namespace
  92
  93 extern "C" SAL_DLLPUBLIC_EXPORT
  94 css::uno::XInterface* com_sun_star_graphic_GraphicObject_get_implementation(
  95                             SAL_UNUSED_PARAMETER uno::XComponentContext*,
  96                             uno::Sequence<uno::Any> const & rArguments)
  97 {
  98     return cppu::acquire(new GraphicObjectImpl(rArguments));
  99 }
 100
 101 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */