48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
#include "./entryfiltermodel.h"
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#include "./entrymodel.h"
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namespace QtGui {
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/*!
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* \class EntryFilterModel
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* \brief The EntryFilterModel class provides a QSortFilterProxyModel specialization for the EntryModel class.
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*
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* \sa http://qt-project.org/doc/qt-5/qsortfilterproxymodel.html
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*/
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/*!
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* \brief Constructs a new filter entry model.
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*/
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EntryFilterModel::EntryFilterModel(QObject *parent)
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: QSortFilterProxyModel(parent)
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{
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}
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bool EntryFilterModel::filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const
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{
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// just use default implementation
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if (QSortFilterProxyModel::filterAcceptsRow(sourceRow, sourceParent)) {
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return true;
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}
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// also accept rows where the direct parent is accepted
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if (sourceParent.isValid() && QSortFilterProxyModel::filterAcceptsRow(sourceParent.row(), sourceParent.parent())) {
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return true;
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}
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// also accept rows which contain accepted childs
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return hasAcceptedChildren(sourceModel()->index(sourceRow, 0, sourceParent));
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}
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bool EntryFilterModel::hasAcceptedChildren(const QModelIndex &index) const
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{
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for (int i = 0, rowCount = sourceModel()->rowCount(index); i < rowCount; ++i) {
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if (filterAcceptsRow(i, index)) {
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return true;
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}
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}
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return false;
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}
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} // namespace QtGui
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