sd/source/ui/presenter/PresenterPreviewCache.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 #ifndef INCLUDED_SD_SOURCE_UI_PRESENTER_PRESENTERPREVIEWCACHE_HXX
  21 #define INCLUDED_SD_SOURCE_UI_PRESENTER_PRESENTERPREVIEWCACHE_HXX
  22
  23 #include <com/sun/star/drawing/XSlidePreviewCache.hpp>
  24 #include <com/sun/star/lang/XInitialization.hpp>
  25 #include <tools/gen.hxx>
  26 #include <cppuhelper/compbase.hxx>
  27 #include <cppuhelper/basemutex.hxx>
  28 #include <memory>
  29
  30 namespace sd { namespace slidesorter { namespace cache { class PageCache; } } }
  31
  32 namespace sd { namespace presenter {
  33
  34 typedef ::cppu::WeakComponentImplHelper<
  35     css::lang::XInitialization,
  36     css::drawing::XSlidePreviewCache
  37 > PresenterPreviewCacheInterfaceBase;
  38
  39 /** Uno API wrapper around the slide preview cache.
  40 */
  41 class PresenterPreviewCache
  42     : private ::cppu::BaseMutex,
  43       public PresenterPreviewCacheInterfaceBase
  44 {
  45 public:
  46     PresenterPreviewCache ();
  47     virtual ~PresenterPreviewCache() override;
  48     PresenterPreviewCache(const PresenterPreviewCache&) = delete;
  49     PresenterPreviewCache& operator=(const PresenterPreviewCache&) = delete;
  50
  51     // XInitialize
  52
  53     /** Accepts no arguments.  All values that are necessary to set up a
  54         preview cache can be provided via methods.
  55     */
  56     virtual void SAL_CALL initialize (const css::uno::Sequence<css::uno::Any>& rArguments) override;
  57
  58     // XSlidePreviewCache
  59
  60     virtual void SAL_CALL setDocumentSlides (
  61         const css::uno::Reference<css::container::XIndexAccess>& rxSlides,
  62         const css::uno::Reference<css::uno::XInterface>& rxDocument) override;
  63
  64     virtual void SAL_CALL setVisibleRange (
  65         sal_Int32 nFirstVisibleSlideIndex,
  66         sal_Int32 nLastVisibleSlideIndex) override;
  67
  68     virtual void SAL_CALL setPreviewSize (
  69         const css::geometry::IntegerSize2D& rSize) override;
  70
  71     virtual css::uno::Reference<css::rendering::XBitmap> SAL_CALL
  72         getSlidePreview (
  73             sal_Int32 nSlideIndex,
  74             const css::uno::Reference<css::rendering::XCanvas>& rxCanvas) override;
  75
  76     virtual void SAL_CALL addPreviewCreationNotifyListener (
  77         const css::uno::Reference<css::drawing::XSlidePreviewCacheListener>& rxListener) override;
  78
  79     virtual void SAL_CALL removePreviewCreationNotifyListener (
  80         const css::uno::Reference<css::drawing::XSlidePreviewCacheListener>& rxListener) override;
  81
  82     virtual void SAL_CALL pause() override;
  83
  84     virtual void SAL_CALL resume() override;
  85
  86 private:
  87     class PresenterCacheContext;
  88     Size maPreviewSize;
  89     std::shared_ptr<PresenterCacheContext> mpCacheContext;
  90     std::shared_ptr<sd::slidesorter::cache::PageCache> mpCache;
  91
  92     /** @throws css::lang::DisposedException when the object has already been
  93         disposed.
  94     */
  95     void ThrowIfDisposed();
  96 };
  97
  98 } } // end of namespace ::sd::presenter
  99
 100 #endif
 101
 102 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */