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https://invent.kde.org/system/dolphin
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Replace QList by QVector if the elements are larger than a pointer
If the elements are larger than a pointer, QList does not store the elements themselves, but pointers to them in a contiguous block of memory. This wastes quite a bit of memory. This can be prevented easily by using QVector instead. REVIEW: 111304
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@ -55,8 +55,8 @@ void KItemListSizeHintResolver::itemsInserted(int index, int count)
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void KItemListSizeHintResolver::itemsRemoved(int index, int count)
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{
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const QList<QSizeF>::iterator begin = m_sizeHintCache.begin() + index;
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const QList<QSizeF>::iterator end = begin + count;
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const QVector<QSizeF>::iterator begin = m_sizeHintCache.begin() + index;
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const QVector<QSizeF>::iterator end = begin + count;
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m_sizeHintCache.erase(begin, end);
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}
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@ -23,8 +23,8 @@
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#include <libdolphin_export.h>
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#include <QByteArray>
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#include <QList>
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#include <QSizeF>
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#include <QVector>
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class KItemListView;
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@ -47,7 +47,7 @@ public:
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private:
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const KItemListView* m_itemListView;
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mutable QList<QSizeF> m_sizeHintCache;
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mutable QVector<QSizeF> m_sizeHintCache;
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};
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#endif
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@ -26,6 +26,7 @@
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#include <QRectF>
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#include <QSet>
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#include <QSizeF>
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#include <QVector>
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class KItemModelBase;
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class KItemListSizeHintResolver;
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@ -230,7 +231,7 @@ private:
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int column;
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int row;
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};
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QList<ItemInfo> m_itemInfos;
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QVector<ItemInfo> m_itemInfos;
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friend class KItemListControllerTest;
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};
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