diff options
author | Martin Jones <martin.jones@nokia.com> | 2012-02-09 15:28:29 +1000 |
---|---|---|
committer | Qt by Nokia <qt-info@nokia.com> | 2012-02-10 02:55:35 +0100 |
commit | eb447afb375e122c3be1c56affbf944f8687f1b6 (patch) | |
tree | 6b7b7a227f7758f6421382ac6e2b2f9a822763fa /src/quick/items/qquickevents_p_p.h | |
parent | 9c1793913da9c504b8ef384795d564dc304950a7 (diff) |
Use use touch events to generate mouse events in Quick canvas.
Allowing the canvas to deal with mouse event emulation provides
a couple of advantages: 1. touches outside a reactive area can
be ignored, allowing a touch within a reactive area to become
the "mouse touch". 2. we can extend the mouse events with
data available in touch events for use within the quick elements;
specifically velocity in this case.
Change-Id: Id9df397f1a3a03dbda2ef5dcf6189e7eb3377356
Reviewed-by: Michael Brasser <michael.brasser@nokia.com>
Diffstat (limited to 'src/quick/items/qquickevents_p_p.h')
-rw-r--r-- | src/quick/items/qquickevents_p_p.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/quick/items/qquickevents_p_p.h b/src/quick/items/qquickevents_p_p.h index 91b218875c..3298fcef9c 100644 --- a/src/quick/items/qquickevents_p_p.h +++ b/src/quick/items/qquickevents_p_p.h @@ -58,6 +58,7 @@ #include <qdeclarative.h> #include <QtCore/qobject.h> +#include <QtGui/qvector2d.h> #include <QtGui/qevent.h> QT_BEGIN_NAMESPACE @@ -137,6 +138,60 @@ private: bool _accepted; }; +class QQuickMouseEventEx : public QMouseEvent +{ +public: + QQuickMouseEventEx(Type type, const QPointF &pos, Qt::MouseButton button, + Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers) + : QMouseEvent(type,pos,button,buttons,modifiers) + { + } + + QQuickMouseEventEx(Type type, const QPointF &pos, const QPointF &globalPos, + Qt::MouseButton button, Qt::MouseButtons buttons, + Qt::KeyboardModifiers modifiers) + : QMouseEvent(type,pos,globalPos,button,buttons,modifiers) + { + } + + QQuickMouseEventEx(Type type, const QPointF &pos, const QPointF &windowPos, const QPointF &globalPos, + Qt::MouseButton button, Qt::MouseButtons buttons, + Qt::KeyboardModifiers modifiers) + : QMouseEvent(type,pos,windowPos,globalPos,button,buttons,modifiers) + { + } + + QQuickMouseEventEx(const QMouseEvent &event) + : QMouseEvent(event) + { + if (extended(&event)) + setVelocity(extended(&event)->velocity()); + } + + static const QQuickMouseEventEx *extended(const QMouseEvent *e) { + const QQuickMouseEventEx *ex = static_cast<const QQuickMouseEventEx*>(e); + return reinterpret_cast<const QMouseEvent*>(ex->d) == e ? ex : 0; + } + static QQuickMouseEventEx *extended(QMouseEvent *e) { + QQuickMouseEventEx *ex = static_cast<QQuickMouseEventEx*>(e); + return reinterpret_cast<QMouseEvent*>(ex->d) == e ? ex : 0; + } + + void setExtended() { + d = reinterpret_cast<QEventPrivate*>(this); + } + + void setVelocity(const QVector2D &v) { + setExtended(); + _velocity = v; + } + QVector2D velocity() const { return _velocity; } + +private: + QVector2D _velocity; +}; + + QT_END_NAMESPACE QML_DECLARE_TYPE(QQuickKeyEvent) |