diff options
Diffstat (limited to 'src/quick/scenegraph/qsgshareddistancefieldglyphcache.cpp')
| -rw-r--r-- | src/quick/scenegraph/qsgshareddistancefieldglyphcache.cpp | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/src/quick/scenegraph/qsgshareddistancefieldglyphcache.cpp b/src/quick/scenegraph/qsgshareddistancefieldglyphcache.cpp index 76fb9036f4..cd5aaaedd7 100644 --- a/src/quick/scenegraph/qsgshareddistancefieldglyphcache.cpp +++ b/src/quick/scenegraph/qsgshareddistancefieldglyphcache.cpp @@ -234,14 +234,25 @@ void QSGSharedDistanceFieldGlyphCache::releaseGlyphs(const QSet<glyph_t> &glyphs void QSGSharedDistanceFieldGlyphCache::registerOwnerElement(QQuickItem *ownerElement) { - bool ok = connect(this, SIGNAL(glyphsPending()), ownerElement, SLOT(triggerPreprocess())); - Q_ASSERT_X(ok, Q_FUNC_INFO, "QML element that owns a glyph node must have triggerPreprocess() slot"); - Q_UNUSED(ok); + Owner &owner = m_registeredOwners[ownerElement]; + if (owner.ref == 0) { + owner.item = ownerElement; + + bool ok = connect(this, SIGNAL(glyphsPending()), ownerElement, SLOT(triggerPreprocess())); + Q_ASSERT_X(ok, Q_FUNC_INFO, "QML element that owns a glyph node must have triggerPreprocess() slot"); + Q_UNUSED(ok); + } + ++owner.ref; } void QSGSharedDistanceFieldGlyphCache::unregisterOwnerElement(QQuickItem *ownerElement) { - disconnect(this, SIGNAL(glyphsPending()), ownerElement, SLOT(triggerPreprocess())); + QHash<QQuickItem *, Owner>::iterator it = m_registeredOwners.find(ownerElement); + if (it != m_registeredOwners.end() && --it->ref <= 0) { + if (it->item) + disconnect(this, SIGNAL(glyphsPending()), ownerElement, SLOT(triggerPreprocess())); + m_registeredOwners.erase(it); + } } #if defined(QSGSHAREDDISTANCEFIELDGLYPHCACHE_DEBUG_) |