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Asynchronous calculation of document text layout

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This commit is contained in:
Jakub Melka
2020-01-01 18:23:18 +01:00
parent c832c4ecef
commit e9481fc446
12 changed files with 313 additions and 81 deletions
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20
PdfForQtLib/sources/pdffont.cpp
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@ -1610,7 +1610,7 @@ PDFFontPointer PDFFontCache::getFont(const PDFObject& fontObject) const
// We must create the font
PDFFontPointer font = PDFFont::createFont(fontObject, m_document);
if (m_fontCacheShrinkEnabled && m_fontCache.size() >= m_fontCacheLimit)
if (m_fontCacheShrinkDisabledObjects.empty() && m_fontCache.size() >= m_fontCacheLimit)
{
// We have exceeded the cache limit. Clear the cache.
m_fontCache.clear();
@ -1638,7 +1638,7 @@ PDFRealizedFontPointer PDFFontCache::getRealizedFont(const PDFFontPointer& font,
// We must create the realized font
PDFRealizedFontPointer realizedFont = PDFRealizedFont::createRealizedFont(font, size, reporter);
if (m_fontCacheShrinkEnabled && m_realizedFontCache.size() >= m_realizedFontCacheLimit)
if (m_fontCacheShrinkDisabledObjects.empty() && m_realizedFontCache.size() >= m_realizedFontCacheLimit)
{
m_realizedFontCache.clear();
}
@ -1649,13 +1649,19 @@ PDFRealizedFontPointer PDFFontCache::getRealizedFont(const PDFFontPointer& font,
return it->second;
}
void PDFFontCache::setCacheShrinkEnabled(bool enabled)
void PDFFontCache::setCacheShrinkEnabled(void* source, bool enabled)
{
if (m_fontCacheShrinkEnabled != enabled)
QMutexLocker lock(&m_mutex);
if (enabled)
{
m_fontCacheShrinkEnabled = enabled;
m_fontCacheShrinkDisabledObjects.erase(source);
lock.unlock();
shrink();
}
else
{
m_fontCacheShrinkDisabledObjects.insert(source);
}
}
void PDFFontCache::setCacheLimits(int fontCacheLimit, int instancedFontCacheLimit)
@ -1670,9 +1676,9 @@ void PDFFontCache::setCacheLimits(int fontCacheLimit, int instancedFontCacheLimi
void PDFFontCache::shrink()
{
if (m_fontCacheShrinkEnabled)
QMutexLocker lock(&m_mutex);
if (m_fontCacheShrinkDisabledObjects.empty())
{
QMutexLocker lock(&m_mutex);
if (m_fontCache.size() >= m_fontCacheLimit)
{
m_fontCache.clear();