25 lines
967 B
C++
25 lines
967 B
C++
#include "backgrounddelegate.h"
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#include <QPainter>
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#include <QPixmap>
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BackgroundDelegate::BackgroundDelegate(QObject *parent)
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: QStyledItemDelegate(parent)
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{
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}
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void BackgroundDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
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{
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// 首先，检查这个单元格是否有背景图片数据，我们可以使用一个角色来存储，比如Qt::UserRole+1
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QVariant bgData = index.data(Qt::UserRole+1); // 我们约定用这个角色存储图片路径
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if (bgData.isValid()) {
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QString imagePath = bgData.toString();
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QPixmap pixmap(imagePath);
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if (!pixmap.isNull()) {
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// 绘制背景图片，缩放到单元格大小
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painter->drawPixmap(option.rect, pixmap.scaled(option.rect.size(), Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
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}
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}
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// 然后调用基类绘制文本等
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QStyledItemDelegate::paint(painter, option, index);
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}
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