rounded tooltip rect

Author: fferri

qdataflowcanvas.cpp

@@ -926,7 +926,7 @@ void QDataflowNodeTextLabel::complete()
 QDataflowTooltip::QDataflowTooltip(QDataflowCanvas *canvas_, QString text, QPointF offset)
  : offset_(offset)
 {
- shape_ = new QGraphicsPolygonItem(this);
+ shape_ = new QGraphicsPathItem(this);
  shape_->setPen(QPen(Qt::black, 1, Qt::SolidLine));
  shape_->setBrush(Qt::white);
 
@@ -947,22 +947,15 @@ void QDataflowTooltip::adjust()
 {
  const int kb = 4;
  QRectF br = text_->boundingRect().adjusted(-kb, -kb, kb, kb);
-
- // anchor on bottom side
- qreal y = br.bottom();
- qreal x = 0.5 * (br.left() - br.right()) + br.right();
- const int kw = 6;
-
- QPolygonF p;
- p << offset_;
- p << QPointF(x - kw, y);
- p << br.bottomLeft();
- p << br.topLeft();
- p << br.topRight();
- p << br.bottomRight();
- p << QPointF(x + kw, y);
- p << offset_;
- shape_->setPolygon(p);
+ QPointF hoff(6, 0);
+ QPainterPath pTip;
+ pTip.moveTo(offset_);
+ pTip.lineTo(br.center() - hoff);
+ pTip.lineTo(br.center() + hoff);
+ pTip.closeSubpath();
+ QPainterPath pRect;
+ pRect.addRoundedRect(br, 1.5 * kb, 1.5 * kb);
+ shape_->setPath(pTip.united(pRect).simplified());
 }
 
 void QDataflowTextCompletion::complete(QString nodeText, QStringList &completionList)

qdataflowcanvas.h

@@ -299,7 +299,7 @@ class QDataflowTooltip : public QGraphicsItemGroup
 
 private:
  QGraphicsSimpleTextItem *text_;
- QGraphicsPolygonItem *shape_;
+ QGraphicsPathItem *shape_;
  QPointF offset_;
 
  friend class QDataflowCanvas;