MyTableWidgetDelegate.cpp
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MyTableWidgetDelegate.cpp
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	#include "MyTableWidgetDelegate.h"

	#include <QPainter>
	#include <QTableWidget>
	#include <QApplication>


	MyTableWidgetDelegate::MyTableWidgetDelegate(QObject *parent)
	: QStyledItemDelegate(parent)
	{
	}

	void MyTableWidgetDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
	{
	QStyleOptionViewItem opt = option;

	#ifdef Q_OS_WIN
	// 選択枠を描画
	if (option.showDecorationSelected) {
	QTableWidget const tablewidget = qobject_cast<QTableWidget const >(option.widget);
	Q_ASSERT(tablewidget);
	int w = tablewidget->viewport()->rect().width();
	painter->save();
	QStyleOptionViewItem o = option;
	painter->setClipRect(o.rect);
	o.rect = QRect(1, o.rect.y(), w - 2, o.rect.height());
	qApp->style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &o, painter, 0);
	painter->restore();
	}

	opt.state &= ~QStyle::State_Selected; // 行の選択枠は描画しない
	#endif
	opt.state &= ~QStyle::State_HasFocus; // セルのフォーカス枠は描画しない

	QStyledItemDelegate::paint(painter, opt, index); // デフォルトの描画
	}