Propper path tick tooltip

+ code cleanup

src/GUI/pathitem.cpp

@@ -325,20 +325,15 @@ void PathItem::updateTicks()
 		return;
 
 	int ts = tickSize();
-	qreal f = xInM();
+	int tc = _path.last().last().distance() / (ts * xInM());
-	int tc = (int)_path.last().last().distance() / (ts * f);
+	QRect tr = PathTickItem::tickRect(ts * (tc - 1));
-
-	QFontMetrics fm(PathTickItem::font());
-	QRect tr = fm.boundingRect(QRect(), Qt::AlignCenter,
-	  QString::number(qMax(ts * (tc - 1), 10)))
-	  .adjusted(-2, 0, 2, 0);
 
 	_ticks.resize(tc);
 	for (int i = 0; i < tc; i++) {
-		QPoint pos(position((i + 1) * ts * xInM()).toPoint());
 		_ticks[i] = new PathTickItem(tr, (i + 1) * ts, this);
-		_ticks[i]->setPos(QPointF(pos.x() - 0.5, pos.y() - 0.5));
+		_ticks[i]->setPos(position((i + 1) * ts * xInM()));
 		_ticks[i]->setColor(_pen.color());
+		_ticks[i]->setToolTip(toolTip());
 	}
 }
 

src/GUI/pathtickitem.cpp

@@ -54,3 +54,18 @@ void PathTickItem::paint(QPainter *painter,
 	painter->drawRect(boundingRect());
 */
 }
+
+void PathTickItem::setPos(const QPointF &pos)
+{
+	/* For propper rounded rect rendering, the item must be positioned in the
+	   middle of a pixel */
+	QPoint p(pos.toPoint());
+	QGraphicsItem::setPos(QPointF(p.x() - 0.5, p.y() - 0.5));
+}
+
+QRect PathTickItem::tickRect(int value)
+{
+	QFontMetrics fm(_font);
+	return fm.boundingRect(QRect(), Qt::AlignCenter,
+	  QString::number(qMax(value, 10))).adjusted(-2, 0, 2, 0);
+}

src/GUI/pathtickitem.h

@@ -13,9 +13,10 @@ public:
 	void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
 	  QWidget *widget);
 
+	void setPos(const QPointF &pos);
 	void setColor(const QColor &color) {_brush = QBrush(color);}
 
-	static const QFont &font() {return _font;}
+	static QRect tickRect(int value);
 
 private:
 	QRectF _tickRect;