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