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Cache topic/journal first rows in InfoTableProxyModel

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This commit is contained in:
Stanislav Bas 2015-06-17 23:46:51 +03:00
parent 2e40b68862
commit a6624ca576
2 changed files with 29 additions and 2 deletions
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22
apps/opencs/model/world/infotableproxymodel.cpp
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@ -15,6 +15,11 @@ void CSMWorld::InfoTableProxyModel::setSourceModel(QAbstractItemModel *sourceMod
{
IdTableProxyModel::setSourceModel(sourceModel);
mSourceModel = dynamic_cast<IdTableBase *>(sourceModel);
connect(mSourceModel,
SIGNAL(dataChanged(const QModelIndex &, const QModelIndex &)),
this,
SLOT(modelDataChanged(const QModelIndex &, const QModelIndex &)));
mFirstRowCache.clear();
}
bool CSMWorld::InfoTableProxyModel::lessThan(const QModelIndex &left, const QModelIndex &right) const
@ -33,8 +38,21 @@ int CSMWorld::InfoTableProxyModel::getFirstInfoRow(int currentRow) const
}
int column = mSourceModel->findColumnIndex(columnId);
QVariant info = mSourceModel->data(mSourceModel->index(currentRow, column));
while (--currentRow >= 0 &&
QString info = mSourceModel->data(mSourceModel->index(currentRow, column)).toString();
if (mFirstRowCache.contains(info))
{
return mFirstRowCache[info];
}
while (--currentRow >= 0 &&
mSourceModel->data(mSourceModel->index(currentRow, column)) == info);
mFirstRowCache[info] = currentRow + 1;
return currentRow + 1;
}
void CSMWorld::InfoTableProxyModel::modelDataChanged(const QModelIndex &/*topLeft*/, const QModelIndex &/*bottomRight*/)
{
mFirstRowCache.clear();
}

9
apps/opencs/model/world/infotableproxymodel.hpp
View File

@ -1,6 +1,8 @@
#ifndef CSM_WORLD_INFOTABLEPROXYMODEL_HPP
#define CSM_WORLD_INFOTABLEPROXYMODEL_HPP
#include <QHash>
#include "idtableproxymodel.hpp"
#include "universalid.hpp"
@ -10,9 +12,13 @@ namespace CSMWorld
class InfoTableProxyModel : public IdTableProxyModel
{
Q_OBJECT
UniversalId::Type mType;
IdTableBase *mSourceModel;
mutable QHash<QString, int> mFirstRowCache;
int getFirstInfoRow(int currentRow) const;
///< Finds the first row with the same topic (journal entry) as in \a currentRow
@ -23,6 +29,9 @@ namespace CSMWorld
protected:
virtual bool lessThan(const QModelIndex &left, const QModelIndex &right) const;
private slots:
void modelDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);
};
}