filterwidget.cpp Example File

itemviews/customsortfiltermodel/filterwidget.cpp
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#include "filterwidget.h" #include <QIcon> #include <QPixmap> #include <QImage> #include <QMenu> #include <QAction> #include <QActionGroup> #include <QToolButton> #include <QWidgetAction> #include <QDebug> FilterWidget::FilterWidget(QWidget *parent) : QLineEdit(parent) , m_patternGroup(new QActionGroup(this)) { setClearButtonEnabled(true); connect(this, &QLineEdit::textChanged, this, &FilterWidget::filterChanged); QMenu *menu = new QMenu(this); m_caseSensitivityAction = menu->addAction(tr("Case Sensitive")); m_caseSensitivityAction->setCheckable(true); connect(m_caseSensitivityAction, &QAction::toggled, this, &FilterWidget::filterChanged); menu->addSeparator(); m_patternGroup->setExclusive(true); QAction *patternAction = menu->addAction("Fixed String"); patternAction->setData(QVariant(int(QRegExp::FixedString))); patternAction->setCheckable(true); patternAction->setChecked(true); m_patternGroup->addAction(patternAction); patternAction = menu->addAction("Regular Expression"); patternAction->setCheckable(true); patternAction->setData(QVariant(int(QRegExp::RegExp2))); m_patternGroup->addAction(patternAction); patternAction = menu->addAction("Wildcard"); patternAction->setCheckable(true); patternAction->setData(QVariant(int(QRegExp::Wildcard))); m_patternGroup->addAction(patternAction); connect(m_patternGroup, &QActionGroup::triggered, this, &FilterWidget::filterChanged); const QIcon icon = QIcon(QPixmap(":/images/find.png")); QToolButton *optionsButton = new QToolButton; #ifndef QT_NO_CURSOR optionsButton->setCursor(Qt::ArrowCursor); #endif optionsButton->setFocusPolicy(Qt::NoFocus); optionsButton->setStyleSheet("* { border: none; }"); optionsButton->setIcon(icon); optionsButton->setMenu(menu); optionsButton->setPopupMode(QToolButton::InstantPopup); QWidgetAction *optionsAction = new QWidgetAction(this); optionsAction->setDefaultWidget(optionsButton); addAction(optionsAction, QLineEdit::LeadingPosition); } Qt::CaseSensitivity FilterWidget::caseSensitivity() const { return m_caseSensitivityAction->isChecked() ? Qt::CaseSensitive : Qt::CaseInsensitive; } void FilterWidget::setCaseSensitivity(Qt::CaseSensitivity cs) { m_caseSensitivityAction->setChecked(cs == Qt::CaseSensitive); } static inline QRegExp::PatternSyntax patternSyntaxFromAction(const QAction *a) { return static_cast<QRegExp::PatternSyntax>(a->data().toInt()); } QRegExp::PatternSyntax FilterWidget::patternSyntax() const { return patternSyntaxFromAction(m_patternGroup->checkedAction()); } void FilterWidget::setPatternSyntax(QRegExp::PatternSyntax s) { foreach (QAction *a, m_patternGroup->actions()) { if (patternSyntaxFromAction(a) == s) { a->setChecked(true); break; } } }