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::sun::star::container {
    class XNameAccess;
}
 
struct ImageRequestParameters
{
    OUString msName;
    OUString msStyle;
    BitmapEx& mrBitmap;
    bool mbLocalized;
    ImageLoadFlags 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, 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()
        {
            maLinkHash.reserve(50);
        }
 
        IconSet(const OUString & rURL)
            : maURL(rURL)
        {
            maLinkHash.reserve(50);
        }
    };
 
    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(std::u16string_view rStyle);
};
 
#endif
 
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