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#ifndef TEXTINDENTDELEGATE_H
#define TEXTINDENTDELEGATE_H
#include <QStyledItemDelegate>
class TextIndentDelegate : public QStyledItemDelegate {
Q_OBJECT
public:
TextIndentDelegate(int indent, QObject *parent = nullptr)
: QStyledItemDelegate(parent), m_indent(indent) {}
void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
private:
int m_indent;
};
#endif // TEXTINDENTDELEGATE_H#include "textindentdelegate.h"
#include <QApplication>
#include <QPainter>
void TextIndentDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const {
QStyleOptionViewItem newOption(option);
initStyleOption(&newOption, index);
// Temporarily clear the text to prevent it from being drawn by drawControl
QString originalText = newOption.text;
newOption.text.clear();
// Draw the background and focus rectangle
newOption.state.setFlag(QStyle::State_HasFocus, false);
QApplication::style()->drawControl(QStyle::CE_ItemViewItem, &newOption, painter);
// Restore the original text and draw it using QPainter with indentation
newOption.text = originalText;
painter->save();
painter->setPen(newOption.palette.text().color());
painter->setFont(newOption.font);
QRect textRect = newOption.rect;
textRect.setLeft(textRect.left() + m_indent);
painter->drawText(textRect, newOption.displayAlignment, newOption.text);
painter->restore();
}ui->listView->setItemDelegate(new TextIndentDelegate(16, listView)); // Text indent