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| |
| #include "qhelpfiltersettings_p.h" |
| #include "qhelpfilterdata.h" |
| |
| #include <QtCore/QMap> |
| #include <QtHelp/QHelpFilterEngine> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QHelpFilterSettingsPrivate : public QSharedData |
| { |
| public: |
| QHelpFilterSettingsPrivate() = default; |
| QHelpFilterSettingsPrivate(const QHelpFilterSettingsPrivate &other) = default; |
| ~QHelpFilterSettingsPrivate() = default; |
| |
| QMap<QString, QHelpFilterData> m_filterToData; |
| QString m_currentFilter; |
| }; |
| |
| QHelpFilterSettings::QHelpFilterSettings() |
| : d(new QHelpFilterSettingsPrivate) |
| { |
| } |
| |
| QHelpFilterSettings::QHelpFilterSettings(const QHelpFilterSettings &) = default; |
| |
| QHelpFilterSettings::QHelpFilterSettings(QHelpFilterSettings &&) = default; |
| |
| QHelpFilterSettings::~QHelpFilterSettings() = default; |
| |
| QHelpFilterSettings &QHelpFilterSettings::operator=(const QHelpFilterSettings &) = default; |
| |
| QHelpFilterSettings &QHelpFilterSettings::operator=(QHelpFilterSettings &&) = default; |
| |
| void QHelpFilterSettings::setFilter(const QString &filterName, |
| const QHelpFilterData &filterData) |
| { |
| d->m_filterToData.insert(filterName, filterData); |
| } |
| |
| void QHelpFilterSettings::removeFilter(const QString &filterName) |
| { |
| d->m_filterToData.remove(filterName); |
| } |
| |
| QStringList QHelpFilterSettings::filterNames() const |
| { |
| return d->m_filterToData.keys(); |
| } |
| |
| QHelpFilterData QHelpFilterSettings::filterData(const QString &filterName) const |
| { |
| return d->m_filterToData.value(filterName); |
| } |
| |
| QMap<QString, QHelpFilterData> QHelpFilterSettings::filters() const |
| { |
| return d->m_filterToData; |
| } |
| |
| void QHelpFilterSettings::setCurrentFilter(const QString &filterName) |
| { |
| d->m_currentFilter = filterName; |
| } |
| |
| QString QHelpFilterSettings::currentFilter() const |
| { |
| return d->m_currentFilter; |
| } |
| |
| QHelpFilterSettings QHelpFilterSettings::readSettings(const QHelpFilterEngine *filterEngine) |
| { |
| QHelpFilterSettings filterSettings; |
| |
| const QStringList allFilters = filterEngine->filters(); |
| for (const QString &filter : allFilters) |
| filterSettings.setFilter(filter, filterEngine->filterData(filter)); |
| |
| filterSettings.setCurrentFilter(filterEngine->activeFilter()); |
| |
| return filterSettings; |
| } |
| |
| static QMap<QString, QHelpFilterData> subtract(const QMap<QString, QHelpFilterData> &minuend, |
| const QMap<QString, QHelpFilterData> &subtrahend) |
| { |
| QMap<QString, QHelpFilterData> result = minuend; |
| |
| for (auto itSubtrahend = subtrahend.cbegin(); itSubtrahend != subtrahend.cend(); ++itSubtrahend) { |
| auto itResult = result.find(itSubtrahend.key()); |
| if (itResult != result.end() && itSubtrahend.value() == itResult.value()) |
| result.erase(itResult); |
| } |
| |
| return result; |
| } |
| |
| bool QHelpFilterSettings::applySettings(QHelpFilterEngine *filterEngine, |
| const QHelpFilterSettings &settings) |
| { |
| bool changed = false; |
| const QHelpFilterSettings oldSettings = readSettings(filterEngine); |
| |
| const QMap<QString, QHelpFilterData> filtersToRemove = subtract( |
| oldSettings.filters(), |
| settings.filters()); |
| const QMap<QString, QHelpFilterData> filtersToAdd = subtract( |
| settings.filters(), |
| oldSettings.filters()); |
| |
| const QString ¤tFilter = filterEngine->activeFilter(); |
| |
| for (const QString &filter : filtersToRemove.keys()) { |
| filterEngine->removeFilter(filter); |
| if (currentFilter == filter && !filtersToAdd.contains(filter)) |
| filterEngine->setActiveFilter(QString()); |
| changed = true; |
| } |
| |
| for (auto it = filtersToAdd.cbegin(); it != filtersToAdd.cend(); ++it) { |
| filterEngine->setFilterData(it.key(), it.value()); |
| changed = true; |
| } |
| |
| if (changed) |
| filterEngine->setActiveFilter(settings.currentFilter()); |
| |
| return changed; |
| } |
| |
| QT_END_NAMESPACE |