80 lines
2 KiB
C++
80 lines
2 KiB
C++
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#include "event_filter.h"
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#include <QAbstractItemModel>
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#include <QMetaType>
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#include <QRegularExpression>
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void EventFilter::setFilter(const QString& text)
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{
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filters.clear();
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if (!text.isEmpty()) {
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for (const auto &s : text.split(QRegularExpression{"\\s+"})) {
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if (const int split = s.indexOf(":"); split == -1)
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filters.append({"", s.trimmed()});
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else
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filters.append({s.left(split).trimmed(), s.mid(split+1).trimmed()});
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}
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}
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invalidateFilter();
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}
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bool EventFilter::remove(int row)
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{
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return removeRows(row, 1);
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}
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// Check if any of the given values match name: value.
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static bool matches(const QVariantMap& values, const QString& name, const QString& value)
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{
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for (auto kv = values.constKeyValueBegin(); kv != values.constKeyValueEnd(); kv++) {
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const auto& [fieldName, fieldValue] = *kv;
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if (!name.isEmpty() && !fieldName.startsWith(name))
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continue;
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switch (fieldValue.type()) {
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case QMetaType::QString:
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// Prepend = to value for exact match.
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if (value.startsWith("=")) {
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if (fieldValue.toString() == value.mid(1))
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return true;
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} else {
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if (fieldValue.toString().contains(value))
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return true;
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}
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break;
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case QMetaType::Bool:
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// Prepend ! to value for inverted match.
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if (value.startsWith("!")) {
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if (fieldName.startsWith(value.mid(1)) && !fieldValue.toBool())
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return true;
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} else {
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if (fieldName.startsWith(value) && fieldValue.toBool())
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return true;
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}
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break;
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default:
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break;
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}
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}
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return false;
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}
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bool EventFilter::filterAcceptsRow(int sourceRow, const QModelIndex& sourceParent) const
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{
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const auto& model = sourceModel();
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const auto& index = model->index(sourceRow, 0, sourceParent);
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const auto& roles = model->roleNames();
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const auto& tag = model->data(index, roles.key("tag")).toString();
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const auto& values = model->data(index, roles.key("values")).toMap();
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for (const auto& filter : filters) {
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if (filter.first.isEmpty() && tag.startsWith(filter.second))
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continue;
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if (matches(values, filter.first, filter.second))
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continue;
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return false;
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}
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return true;
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}
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