implimagetree.hxx

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#ifndef INCLUDED_VCL_INC_IMPLIMAGETREE_HXX
#define INCLUDED_VCL_INC_IMPLIMAGETREE_HXX

#include <sal/config.h>

#include <memory>
#include <unordered_map>
#include <utility>
#include <vector>

#include <com/sun/star/uno/Reference.hxx>
#include <rtl/ustring.hxx>
#include <vcl/bitmapex.hxx>
#include <i18nlangtag/languagetag.hxx>
#include <vcl/ImageTree.hxx>

namespace com { namespace sun { namespace star { namespace container {
    class XNameAccess;
}}}}

struct ImageRequestParameters
{
    OUString msName;
    OUString const msStyle;
    BitmapEx& mrBitmap;
    bool mbLocalized;
    ImageLoadFlags const meFlags;
    bool mbWriteImageToCache;
    sal_Int32 mnScalePercentage;

    ImageRequestParameters(const OUString & rName, const OUString & rStyle, BitmapEx& rBitmap, bool bLocalized,
                           ImageLoadFlags eFlags, sal_Int32 nScalePercentage)
        : msName(rName)
        , msStyle(rStyle)
        , mrBitmap(rBitmap)
        , mbLocalized(bLocalized)
        , meFlags(eFlags)
        , mbWriteImageToCache(false)
        , mnScalePercentage(nScalePercentage)
    {}

    bool convertToDarkTheme();
    sal_Int32 scalePercentage();
};

class ImplImageTree
{
public:
    ImplImageTree();
    ~ImplImageTree();

    OUString getImageUrl(
        OUString const & name, OUString const & style, OUString const & lang);

    std::shared_ptr<SvMemoryStream> getImageStream(
        OUString const & rName, OUString const & rStyle, OUString const & rLang);

    bool loadImage(
        OUString const & name, OUString const & style,
        BitmapEx & bitmap, bool localized,
        const ImageLoadFlags eFlags,
        sal_Int32 nScalePercentage = -1);

    void shutdown();

    css::uno::Reference< css::container::XNameAccess > const & getNameAccess();

private:
    ImplImageTree(const ImplImageTree&) = delete;
    ImplImageTree& operator=(const ImplImageTree&) = delete;

    typedef std::unordered_map<OUString, std::pair<bool,BitmapEx>> IconCache;
    typedef std::unordered_map<sal_Int32, std::unique_ptr<IconCache>> ScaledIconCache;
    typedef std::unordered_map<OUString, OUString> IconLinkHash;

    struct IconSet
    {
        OUString maURL;
        css::uno::Reference<css::container::XNameAccess> maNameAccess;
        ScaledIconCache maScaledIconCaches;
        IconLinkHash maLinkHash;

        IconSet()
        {}

        IconSet(const OUString & rURL)
            : maURL(rURL)
        {}
    };

    std::unordered_map<OUString, IconSet> maIconSets;

    OUString maCurrentStyle;

    IconSet& getCurrentIconSet()
    {
        return maIconSets[maCurrentStyle];
    }

    bool doLoadImage(ImageRequestParameters& rParameters);

    std::vector<OUString> getPaths(OUString const & name, LanguageTag const & rLanguageTag);

    bool checkPathAccess();

    void setStyle(OUString const & rStyle);

    void createStyle();

    IconCache &getIconCache(const ImageRequestParameters& rParameters);

    bool iconCacheLookup(ImageRequestParameters& rParameters);

    bool findImage(std::vector<OUString> const & rPaths, ImageRequestParameters& rParameters);

    void loadImageLinks();

    void parseLinkFile(std::shared_ptr<SvStream> const & aStream);

    OUString const & getRealImageName(OUString const & rName);


    static OUString fallbackStyle(const OUString &rStyle);
};

#endif

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