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Settings of cache size

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This commit is contained in:
Jakub Melka
2019-12-15 19:28:25 +01:00
parent 3cd2dd5104
commit 7dbae1c3dc
17 changed files with 467 additions and 24 deletions
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16
PdfForQtLib/sources/pdffont.h
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@ -373,6 +373,7 @@ class PDFFontCache
{
public:
inline explicit PDFFontCache(size_t fontCacheLimit, size_t realizedFontCacheLimit) :
m_fontCacheShrinkEnabled(true),
m_fontCacheLimit(fontCacheLimit),
m_realizedFontCacheLimit(realizedFontCacheLimit),
m_document(nullptr)
@ -396,9 +397,20 @@ public:
/// \param reporter Error reporter
PDFRealizedFontPointer getRealizedFont(const PDFFontPointer& font, PDFReal size, PDFRenderErrorReporter* reporter) const;
/// Sets or unsets font shrinking (i.e. font can be deleted from the cache). In multithreading environment,
/// font deletion is not thread safe. For this reason, disable font deletion by calling this function.
void setCacheShrinkEnabled(bool enabled);
/// Set font cache limits
void setCacheLimits(int fontCacheLimit, int instancedFontCacheLimit);
/// If shrinking is enabled, then erase font, if cache limit is exceeded.
void shrink();
private:
const size_t m_fontCacheLimit;
const size_t m_realizedFontCacheLimit;
bool m_fontCacheShrinkEnabled;
size_t m_fontCacheLimit;
size_t m_realizedFontCacheLimit;
mutable QMutex m_mutex;
const PDFDocument* m_document;
mutable std::map<PDFObjectReference, PDFFontPointer> m_fontCache;