48 lines
1.8 KiB
C++
48 lines
1.8 KiB
C++
#include "tableWidgetHoverDelegate.h"
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#include <QPainter>
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QTableWidgetHoverDelegate::QTableWidgetHoverDelegate(QTableWidget *parent)
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: QStyledItemDelegate{parent}
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{
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m_tableWiget = parent;
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}
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QTableWidgetHoverDelegate::~QTableWidgetHoverDelegate()
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{}
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void QTableWidgetHoverDelegate::paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const
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{
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if(option.state.testFlag(QStyle::State_MouseOver) && m_tableWiget)
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{
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QTableWidgetItem* hoveredItem = m_tableWiget->item(index.row(), index.column());
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if(hoveredItem)
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{
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int row = index.row();
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for(int column = 0; column < m_tableWiget->columnCount(); column++)
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{
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QTableWidgetItem* item = m_tableWiget->item(row, column);
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if(!item)
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continue;
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QModelIndex index = m_tableWiget->model()->index(row, column);
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QStyleOptionViewItem itemOption = option;
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itemOption.rect = m_tableWiget->visualItemRect(item);
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QStyledItemDelegate::paint(painter, itemOption, index);
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}
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}
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}
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else
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{
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/*int row = index.row();
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int col = index.column();
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QTableWidgetItem* item = m_tableWiget->item(row, col);
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QRect rect = m_tableWiget->visualItemRect(item);
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//qDebug() << row << ", " << col << " optionRect:" << option.rect << " visualItemRect:" << rect;
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painter->save();
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painter->setPen(Qt::red);
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painter->drawLine(rect.x(), rect.y() + rect.height()*0.5, rect.x() + rect.width(), rect.y() + rect.height()*0.5); //painter属于view，所以要以view的坐标系为标准
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painter->restore();*/
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QStyledItemDelegate::paint(painter, option, index);
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}
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}
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