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71 lines
2.1 KiB
C++
71 lines
2.1 KiB
C++
#include "checkboxdelegate.h"
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#include <QApplication>
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#include <QDebug>
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#include <QEvent>
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#include <QKeyEvent>
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#include <QMouseEvent>
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#include <QPainter>
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CheckBoxDelegate::CheckBoxDelegate(QObject *parent)
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: QStyledItemDelegate(parent)
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{
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}
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void CheckBoxDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
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{
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if (option.state & QStyle::State_Selected) {
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QPen nPen;
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QBrush nBrush;
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if (option.state & QStyle::State_Active) {
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nBrush = option.palette.highlight();
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} else if (option.state & QStyle::State_MouseOver) {
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nBrush = option.palette.brush(QPalette::Inactive, QPalette::Highlight);
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} else {
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nBrush = option.palette.brush(QPalette::Inactive, QPalette::Highlight);
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}
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painter->setBrush(nBrush);
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nPen.setColor(nBrush.color());
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painter->setPen(nPen);
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painter->drawRect(option.rect);
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}
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QStyledItemDelegate::paint(painter, option, index);
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}
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bool CheckBoxDelegate::editorEvent(QEvent *event, QAbstractItemModel *model, const QStyleOptionViewItem &option,
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const QModelIndex &index)
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{
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Q_ASSERT(event);
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Q_ASSERT(model);
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// // make sure that the item is checkable
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// Qt::ItemFlags flags = model->flags(index);
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//
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// if (!(flags & Qt::ItemIsUserCheckable) || !(flags & Qt::ItemIsEnabled))
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// return false;
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//
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// // make sure that we have a check state
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QString value{index.data().toString()};
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//
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// if (!value.isValid())
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// return false;
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// make sure that we have the right event type
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if (event->type() == QEvent::MouseButtonRelease) {
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if (!option.rect.contains(static_cast<QMouseEvent *>(event)->pos()))
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return false;
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} else if (event->type() == QEvent::KeyPress) {
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if (static_cast<QKeyEvent *>(event)->key() != Qt::Key_Space && static_cast<QKeyEvent *>(event)->key() != Qt::Key_Select)
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return false;
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} else {
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return false;
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}
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const QChar CheckMark{0x2714};
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return model->setData(index, value == CheckMark ? QString("") : CheckMark, Qt::DisplayRole);
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}
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