> On 7 Mar 2019, at 18:32, maitai <mai...@virtual-winds.org> wrote: > > Hi, > > I need to trigger various actions whenever a MapPolyLine is hovered or > pressed, such as displaying a tooltip, a menu, etc. > > I have put a MouseArea on it with anchors.fills: parent, but the problem is > that the mouse area does not represent the line, but the polygon made by the > line. For instance if you have a L shape, entered event and so on is > triggered when you enter the bounding rectangle of the line, not when you > hover over the line itself. > > On a QGraphicsScene we had the shape() protected method for that kinds of > case, for instance with a QPainterPathStroker to give some thickness to the > line's "mousearea". > > I will probably end with a custom property that will carry the pixel distance > between the line segments and the mouse coordinates, but this is going to be > heavy to compute (I have potentially hundreds of complicated lines on the > map). > > Is there a better way or even better a standard way to do that?
Check out containmentMask: that’s how you can redefine the behavior of MouseArea’s contains() method in QML. You could use HoverHandler and/or TapHandler though, and then perhaps set containmentMask on the polyline itself if behavior is still not what you want (I haven’t tried it with MapPolyLine myself, only with QtQuick.Shapes). _______________________________________________ Interest mailing list Interest@qt-project.org https://lists.qt-project.org/listinfo/interest
