sizedelegate.cpp


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/*
  This program is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License
  as published by the Free Software Foundation; either version
  2 of the License, or (at your option) any later version.
*/

#include <QFontMetrics>
#include <QLocale>
#include <QPainter>
#include <QApplication>

#include "sizedelegate.h"

SizeDelegate::SizeDelegate(QObject *parent) : QAbstractItemDelegate(parent) {};

void SizeDelegate::paint(QPainter *p, const QStyleOptionViewItem &option, const QModelIndex &index) const{
	p->save();
	qint64 size = index.data().toLongLong();
	qint64 maxSize = Q_INT64_C(2147483648);
	QColor c(QColor(Qt::darkGreen));
	if(size > maxSize){
		c = QColor(Qt::red);
	}
	qApp->style()->drawControl(QStyle::CE_ItemViewItem, &option, p);
	p->setPen(QPen(c));
	p->setFont(option.font);
	QLocale l;
	QString text = l.toString(size);
	p->drawText(option.rect, Qt::AlignRight | Qt::AlignCenter | Qt::AlignVCenter, text);
	p->restore();
}

QSize SizeDelegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const {
	QFont font = option.font;	
	QFontMetrics metrics(font);
	QLocale l;
	QString size = l.toString(index.data().toLongLong());
	return metrics.size(Qt::TextSingleLine, size);
}