sd/source/ui/presenter/SlideRenderer.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 SD_PRESENTER_SLIDE_PREVIEW_HXX
  21 #define SD_PRESENTER_SLIDE_PREVIEW_HXX
  22
  23 #include "PreviewRenderer.hxx"
  24 #include <com/sun/star/drawing/XDrawPage.hpp>
  25 #include <com/sun/star/drawing/XSlideRenderer.hpp>
  26 #include <com/sun/star/lang/XInitialization.hpp>
  27 #include <com/sun/star/rendering/XSpriteCanvas.hpp>
  28 #include <cppuhelper/basemutex.hxx>
  29 #include <cppuhelper/compbase2.hxx>
  30 #include <boost/noncopyable.hpp>
  31
  32 namespace sd { namespace presenter {
  33
  34 namespace {
  35     typedef ::cppu::WeakComponentImplHelper2 <
  36         css::drawing::XSlideRenderer,
  37         css::lang::XInitialization
  38     > SlideRendererInterfaceBase;
  39 }
  40
  41
  42 /** Render single slides into bitmaps.
  43 */
  44 class SlideRenderer
  45     : private ::boost::noncopyable,
  46       protected ::cppu::BaseMutex,
  47       public SlideRendererInterfaceBase
  48 {
  49 public:
  50     explicit SlideRenderer (const css::uno::Reference<css::uno::XComponentContext>& rxContext);
  51     virtual ~SlideRenderer (void);
  52     virtual void SAL_CALL disposing (void);
  53
  54
  55     // XInitialization
  56
  57     virtual void SAL_CALL initialize (const css::uno::Sequence<css::uno::Any>& rArguments)
  58         throw (css::uno::Exception, css::uno::RuntimeException);
  59
  60
  61     // XSlideRenderer
  62
  63     virtual css::uno::Reference<css::awt::XBitmap> SAL_CALL createPreview (
  64         const css::uno::Reference<css::drawing::XDrawPage>& rxSlide,
  65         const css::awt::Size& rMaximumPreviewPixelSize,
  66         sal_Int16 nSuperSampleFactor)
  67         throw (css::uno::RuntimeException);
  68
  69     virtual css::uno::Reference<css::rendering::XBitmap> SAL_CALL createPreviewForCanvas (
  70         const css::uno::Reference<css::drawing::XDrawPage>& rxSlide,
  71         const css::awt::Size& rMaximumPreviewPixelSize,
  72         sal_Int16 nSuperSampleFactor,
  73         const css::uno::Reference<css::rendering::XCanvas>& rxCanvas)
  74         throw (css::uno::RuntimeException);
  75
  76     virtual css::awt::Size SAL_CALL calculatePreviewSize (
  77         double nSlideAspectRatio,
  78         const css::awt::Size& rMaximumPreviewPixelSize)
  79         throw (css::uno::RuntimeException);
  80
  81 private:
  82     PreviewRenderer maPreviewRenderer;
  83
  84     BitmapEx CreatePreview (
  85         const css::uno::Reference<css::drawing::XDrawPage>& rxSlide,
  86         const css::awt::Size& rMaximumPreviewPixelSize,
  87         sal_Int16 nSuperSampleFactor)
  88         throw (css::uno::RuntimeException);
  89
  90     /** This method throws a DisposedException when the object has already been
  91         disposed.
  92     */
  93     void ThrowIfDisposed (void) throw (css::lang::DisposedException);
  94 };
  95
  96 } } // end of namespace ::sd::presenter
  97
  98 #endif
  99
 100 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */