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