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Use a dedicated graphics item for drawing the text instead a pixmap

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Martin Tůma
2018-10-29 18:30:55 +01:00
parent 5d5401e745
commit 5d68f31124
4 changed files with 71 additions and 22 deletions
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29
src/textitem.cpp Normal file
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#include <QPainter>
#include "textitem.h"
#define FLAGS (Qt::AlignCenter | Qt::TextWordWrap | Qt::TextDontClip)
TextItem::TextItem(const QString &text, const QPointF &pos, const QFont &font,
int maxTextWidth, QGraphicsItem *parent) : QGraphicsItem(parent), _text(text),
_font(font)
{
QFontMetrics fm(font);
int limit = fm.width('M') * maxTextWidth;
QRect br = fm.boundingRect(QRect(0, 0, limit, 0), FLAGS, text);
Q_ASSERT(br.isValid());
setPos((pos - QPointF(br.width() / 2.0, br.height() / 2.0)).toPoint());
_boundingRect = QRectF(0, 0, br.width(), br.height());
}
void TextItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
QWidget *widget)
{
Q_UNUSED(option);
Q_UNUSED(widget);
painter->setFont(_font);
painter->setPen(_pen);
painter->drawText(_boundingRect, FLAGS, _text);
}