forms/source/component/imgprod.hxx

   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 #pragma once
  21
  22 #include <tools/link.hxx>
  23 #include <com/sun/star/awt/XImageConsumer.hpp>
  24 #include <com/sun/star/awt/XImageProducer.hpp>
  25 #include <com/sun/star/lang/XInitialization.hpp>
  26 #include <cppuhelper/weak.hxx>
  27 #include <memory>
  28 #include <vector>
  29
  30
  31 class SvStream;
  32 class Graphic;
  33 namespace com::sun::star::io { class XInputStream; }
  34
  35
  36 class ImageProducer :   public css::awt::XImageProducer,
  37                         public css::lang::XInitialization,
  38                         public ::cppu::OWeakObject
  39 {
  40 private:
  41
  42     typedef std::vector< css::uno::Reference< css::awt::XImageConsumer > > ConsumerList_t;
  43
  44     OUString        maURL;
  45     ConsumerList_t  maConsList;
  46     std::unique_ptr<Graphic>
  47                     mpGraphic;
  48     std::unique_ptr<SvStream>
  49                     mpStm;
  50     sal_uInt32      mnTransIndex;
  51     bool            mbConsInit;
  52     Link<Graphic*,void> maDoneHdl;
  53
  54     bool            ImplImportGraphic( Graphic& rGraphic );
  55     void            ImplUpdateData( const Graphic& rGraphic );
  56     void            ImplInitConsumer( const Graphic& rGraphic );
  57     void            ImplUpdateConsumer( const Graphic& rGraphic );
  58
  59 public:
  60
  61                     ImageProducer();
  62                     virtual ~ImageProducer() override;
  63
  64     void            SetImage( const OUString& rPath );
  65     void            SetImage( SvStream& rStm );
  66
  67     void            NewDataAvailable();
  68
  69     void            SetDoneHdl( const Link<Graphic*,void>& i_rHdl ) { maDoneHdl = i_rHdl; }
  70
  71     // css::uno::XInterface
  72     css::uno::Any   SAL_CALL queryInterface( const css::uno::Type & rType ) override;
  73     void            SAL_CALL acquire() noexcept override  { OWeakObject::acquire(); }
  74     void            SAL_CALL release() noexcept override  { OWeakObject::release(); }
  75
  76     // MT: ???
  77     void            setImage( css::uno::Reference< css::io::XInputStream > const & rStmRef );
  78
  79     // css::awt::XImageProducer
  80     void SAL_CALL addConsumer( const css::uno::Reference< css::awt::XImageConsumer >& rxConsumer ) override;
  81     void SAL_CALL removeConsumer( const css::uno::Reference< css::awt::XImageConsumer >& rxConsumer ) override;
  82     void SAL_CALL startProduction(  ) override;
  83
  84     // css::lang::XInitialization
  85     void SAL_CALL initialize( const css::uno::Sequence< css::uno::Any >& aArguments ) override;
  86
  87 };
  88
  89 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */