50 lines
1.6 KiB
C++
50 lines
1.6 KiB
C++
#include "attributeTableDelegate.h"
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#include <QPainter>
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AttributeTableDelegate::AttributeTableDelegate(QTableView* view, QObject *parent)
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: QStyledItemDelegate(parent)
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, m_tableView(view)
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{
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}
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AttributeTableDelegate::~AttributeTableDelegate()
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{}
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void AttributeTableDelegate::paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const
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{
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//根据行号设置交替色
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QStyleOptionViewItem opt = option;
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initStyleOption(&opt, index);
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if ((index.row() + 1) % 2 == 0)
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{
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//opt.backgroundBrush = QBrush(QColor(243, 245, 249));
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painter->fillRect(opt.rect, QColor(240, 248, 255));
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}
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//处理加粗字体逻辑
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if(/*index.column() == 0 || */index.data(Qt::UserRole + 100).toBool())
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{
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opt.font.setBold(true);
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//opt.palette.setColor(QPalette::Text, Qt::red);
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}
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//先执行默认绘制（包括背景、文本等基础元素）
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QStyledItemDelegate::paint(painter, opt, index);
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//最后绘制删除线（确保位于最顶层）
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if(m_tableView && m_tableView->model())
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{
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QModelIndex numberIndex = m_tableView->model()->index(index.row(), 0);
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QString text = numberIndex.data(Qt::DisplayRole).toString();
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if(text.contains("-"))
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{
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QRect rect = m_tableView->visualRect(index);
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painter->save();
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painter->setPen(Qt::red);
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painter->drawLine(rect.left(), rect.y() + rect.height()*0.5, rect.right(), 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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}
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}
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}
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