[commonqt-devel] New QMouseEvent

[Rujia Liu]

my bad :(

I passed the "pos" attribute of a QGraphicsSceneMouseEvent, which is a
QPointF, but QMouseEvent's ctor expects a QPoint. Now it works. Thanks!


On Wed, Sep 18, 2013 at 9:17 AM, Stas Boukarev <stassats at gmail.com> wrote:

> Rujia Liu <rujia.liu at gmail.com> writes:
>
> > Hi!
> >
> > How to create a manual QMouseEvent? I wanna do this because I want to
> > implement canvas dragging on midbutton. I'm referring to this code:
> >
> >
> http://levelfour.googlecode.com/svn/branches/dev/app/gui/GraphicsView.cpp
> >
> > It uses the following trick:
> >
> > if (event->button() == Qt::MidButton) {
> >   setDragMode(QGraphicsView::ScrollHandDrag);
> >
> >   // create a new mouse event that simulates a click of the left button
> > instead of the middle button
> >   QMouseEvent mouseEvent (event->type(), event->pos(), Qt::LeftButton,
> > Qt::LeftButton, event->modifiers());
> >   QGraphicsView::mousePressEvent(&mouseEvent);
> > }
> >
> > That is, when midbutton is down, set the dragging mode and simulate a
> > leftbutton press. The mouse release handler is similar and is omitted
> here.
> >
> > But when I tried in CommonQt I can only get "No applicable constructor
> > QMouseEvent found for arguments..."
> How does your code look like? I can construct a QMouseEvent perfectly
> fine here.
>
> (#_new QMouseEvent (#_QEvent::None) (#_new QPoint) (#_Qt::NoButton)
>        (enum-or (#_Qt::LeftButton) (#_Qt::RightButton)) (#_Qt::NoModifier))
> --
> With best regards, Stas.
>
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