150 lines
5.6 KiB
C++
150 lines
5.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_SLIDESHOW_SOURCE_ENGINE_SHAPES_GDIMTFTOOLS_HXX
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#define INCLUDED_SLIDESHOW_SOURCE_ENGINE_SHAPES_GDIMTFTOOLS_HXX
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#include <com/sun/star/uno/Reference.hxx>
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#include <com/sun/star/uno/XComponentContext.hpp>
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#include <com/sun/star/lang/XComponent.hpp>
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#include <com/sun/star/drawing/XDrawPage.hpp>
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#include <basegfx/range/b2drectangle.hxx>
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#include <vcl/virdev.hxx>
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#include <tools.hxx>
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#include <utility>
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#include <vector>
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class MetaAction;
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class GDIMetaFile;
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class Graphic;
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namespace slideshow::internal
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{
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/// meta file loading specialities:
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enum mtf_load_flags {
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/// no flags
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MTF_LOAD_NONE = 0,
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/// the source of the metafile might be a foreign
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/// application. The metafile is checked against unsupported
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/// content, and, if necessary, returned as a pre-rendered
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/// bitmap.
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MTF_LOAD_FOREIGN_SOURCE = 2,
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/// retrieve a meta file for the page background only
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MTF_LOAD_BACKGROUND_ONLY = 4,
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/// retrieve the drawing layer scroll text metafile
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MTF_LOAD_SCROLL_TEXT_MTF = 8
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};
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// Animation info
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// ==============
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struct MtfAnimationFrame
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{
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MtfAnimationFrame( GDIMetaFileSharedPtr xMtf,
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double nDuration ) :
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mpMtf(std::move( xMtf )),
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mnDuration( nDuration )
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{
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}
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/// Enables STL algos to be used for duration extraction
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double getDuration() const
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{
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return mnDuration;
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}
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GDIMetaFileSharedPtr mpMtf;
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double mnDuration;
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};
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typedef ::std::vector< MtfAnimationFrame > VectorOfMtfAnimationFrames;
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/** Retrieve a meta file for the given shape
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@param xShape
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XShape to retrieve a metafile for.
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@param xContainingPage
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The page that contains this shape. Needed for proper
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import (currently, the UnoGraphicExporter needs this
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information).
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*/
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GDIMetaFileSharedPtr getMetaFile( const css::uno::Reference< css::lang::XComponent >& xSource,
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const css::uno::Reference< css::drawing::XDrawPage >& xContainingPage,
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int mtfLoadFlags,
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const css::uno::Reference< css::uno::XComponentContext >& rxContext );
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/** Gets the next action offset for iterating meta actions which is most
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often returns 1.
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*/
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sal_Int32 getNextActionOffset( MetaAction * pCurrAct );
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/** Extract a vector of animation frames from given Graphic.
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It can be used to extract only a few frames, and can be
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called later to extract more. (If the Animation is big)
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@param o_rFrames
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Resulting vector of animated metafiles
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@param o_rLoopCount
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Number of times the bitmap animation shall be repeated
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@param pGraphic
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Input graphic object, to extract animations from
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@param pVDev, pVDevMask
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Virtual devices. We don't want to create new everytime we load some frames.
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@param nLoadedFrames
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The count of loaded Frames.
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@param nFramesToLoad
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The count of Frames need to be extracted now.
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Bigger nFramesToLoad not result an error, the function will
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stop extracting at the end of the animation anyway.
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*/
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bool getAnimationFromGraphic(VectorOfMtfAnimationFrames& o_rFrames,
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sal_uInt32& o_rLoopCount,
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std::shared_ptr<Graphic> pGraphic,
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ScopedVclPtrInstance<VirtualDevice> &pVDev,
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ScopedVclPtrInstance<VirtualDevice> &pVDevMask,
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sal_uInt16& nLoadedFrames,
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sal_uInt16 nFramesToLoad);
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/** Retrieve scroll text animation rectangles from given metafile
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@return true, if both rectangles have been found, false
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otherwise.
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*/
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bool getRectanglesFromScrollMtf( ::basegfx::B2DRectangle& o_rScrollRect,
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::basegfx::B2DRectangle& o_rPaintRect,
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const GDIMetaFileSharedPtr& rMtf );
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}
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#endif // INCLUDED_SLIDESHOW_SOURCE_ENGINE_SHAPES_GDIMTFTOOLS_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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