textgraphicsitem.cpp

/* Copyright (C) 2014 Leslie Zhai <xiang.zhai@i-soft.com.cn> */

#include "textgraphicsitem.h"

#include <QtGui/QFontMetrics>
#include <QtGui/QPainter>

TextGraphicsItem::TextGraphicsItem(QGraphicsItem* parent)
	: QGraphicsItem(parent)
{
}

TextGraphicsItem::~TextGraphicsItem()
{
}

void TextGraphicsItem::setColor(const QColor& color)
{
	m_color = color;
	update(boundingRect());
}

void TextGraphicsItem::setFont(const QFont& font)
{
	m_font = font;
	update(boundingRect());
}

void TextGraphicsItem::setText(const QString& text)
{
	m_text = text;
	update(boundingRect());
}

void TextGraphicsItem::setImage(const QImage& image) 
{
    m_image = image;
    update(boundingRect());
}

QRectF TextGraphicsItem::boundingRect() const
{
	if (!m_image.isNull()) {
        return m_image.rect();
    }
    QFontMetrics metrics(m_font);
	return metrics.boundingRect(m_text);
}

void TextGraphicsItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
{
	if (m_image.isNull()) {
        painter->setFont(m_font);
	    painter->setPen(QPen(Qt::black));
	    painter->drawText(1, 1, m_text);
	    painter->setPen(QPen(m_color));
	    painter->drawText(0, 0, m_text);
    } else {
        painter->drawImage(0, 0, m_image);
    }
}