Manager.hxx

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#ifndef INCLUDED_VCL_INC_GRAPHIC_MANAGER_HXX
#define INCLUDED_VCL_INC_GRAPHIC_MANAGER_HXX
 
#include <sal/types.h>
#include <rtl/strbuf.hxx>
#include <rtl/ustring.hxx>
#include <vcl/bitmapex.hxx>
#include <vcl/animate/Animation.hxx>
#include <vcl/vectorgraphicdata.hxx>
#include <vcl/timer.hxx>
#include <vcl/GraphicExternalLink.hxx>
#include <vcl/gfxlink.hxx>
 
#include <memory>
#include <mutex>
#include <chrono>
#include <o3tl/sorted_vector.hxx>
 
class ImpGraphic;
 
namespace vcl::graphic
{
class Manager final
{
private:
    std::mutex maMutex; // instead of SolarMutex because graphics can live past vcl main
    o3tl::sorted_vector<ImpGraphic*> m_pImpGraphicList;
    std::chrono::seconds mnAllowedIdleTime;
    bool mbSwapEnabled;
    bool mbReducingGraphicMemory;
    sal_Int64 mnMemoryLimit;
    sal_Int64 mnUsedSize;
    Timer maSwapOutTimer;
 
    Manager();
 
    void registerGraphic(const std::shared_ptr<ImpGraphic>& rImpGraphic);
    void loopGraphicsAndSwapOut(std::unique_lock<std::mutex>& rGuard, bool bDropAll);
 
    DECL_LINK(SwapOutTimerHandler, Timer*, void);
 
    static sal_Int64 getGraphicSizeBytes(const ImpGraphic* pImpGraphic);
    void reduceGraphicMemory(std::unique_lock<std::mutex>& rGuard, bool bDropAll = false);
 
public:
    static Manager& get();
 
    void dropCache();
    void dumpState(rtl::OStringBuffer& rState);
 
    void swappedIn(const ImpGraphic* pImpGraphic, sal_Int64 nSizeBytes);
    void swappedOut(const ImpGraphic* pImpGraphic, sal_Int64 nSizeBytes);
 
    void changeExisting(const ImpGraphic* pImpGraphic, sal_Int64 nOldSize);
    void unregisterGraphic(ImpGraphic* pImpGraphic);
 
    std::shared_ptr<ImpGraphic> copy(std::shared_ptr<ImpGraphic> const& pImpGraphic);
    std::shared_ptr<ImpGraphic> newInstance();
    std::shared_ptr<ImpGraphic> newInstance(const BitmapEx& rBitmapEx);
    std::shared_ptr<ImpGraphic> newInstance(std::shared_ptr<GfxLink> const& rLink,
                                            sal_Int32 nPageIndex = 0);
    std::shared_ptr<ImpGraphic>
    newInstance(const std::shared_ptr<VectorGraphicData>& rVectorGraphicDataPtr);
    std::shared_ptr<ImpGraphic> newInstance(const Animation& rAnimation);
    std::shared_ptr<ImpGraphic> newInstance(const GDIMetaFile& rMtf);
    std::shared_ptr<ImpGraphic> newInstance(const GraphicExternalLink& rGraphicLink);
};
 
} // end namespace vcl::graphic
 
#endif // INCLUDED_VCL_INC_GRAPHIC_MANAGER_HXX
 
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