Signals¶

void panned (int dx, int dy)
void moved (int dx, int dy)

Public Member Functions¶

QwtPanner (QWidget *parent)
virtual ~QwtPanner ()
Destructor. void setEnabled (bool)
En/disable the panner. bool isEnabled () const
void setMouseButton (Qt::MouseButton, Qt::KeyboardModifiers=Qt::NoModifier)
void getMouseButton (Qt::MouseButton &button, Qt::KeyboardModifiers &) const
Get mouse button and modifiers used for panning. void setAbortKey (int key, Qt::KeyboardModifiers=Qt::NoModifier)
void getAbortKey (int &key, Qt::KeyboardModifiers &) const
Get the abort key and modifiers. void setCursor (const QCursor &)
const QCursor cursor () const
void setOrientations (Qt::Orientations)
Qt::Orientations orientations () const
Return the orientation, where panning is enabled. bool isOrientationEnabled (Qt::Orientation) const
virtual bool eventFilter (QObject *, QEvent *) override
Event filter.

Protected Member Functions¶

virtual void widgetMousePressEvent (QMouseEvent *)
virtual void widgetMouseReleaseEvent (QMouseEvent *)
virtual void widgetMouseMoveEvent (QMouseEvent *)
virtual void widgetKeyPressEvent (QKeyEvent *)
virtual void widgetKeyReleaseEvent (QKeyEvent *)
virtual void paintEvent (QPaintEvent *) override
Paint event. virtual QBitmap contentsMask () const
Calculate a mask for the contents of the panned widget. virtual QPixmap grab () const

QwtPanner::QwtPanner (QWidget * parent) [explicit]¶

Creates an panner that is enabled for the left mouse button.

Parameters

Definition at line 87 of file qwt_panner.cpp.

QBitmap QwtPanner::contentsMask () const [protected], [virtual]¶

Calculate a mask for the contents of the panned widget. Sometimes only parts of the contents of a widget should be panned. F.e. for a widget with a styled background with rounded borders only the area inside of the border should be panned.

Returns

Reimplemented in QwtPlotPanner.

Definition at line 297 of file qwt_panner.cpp.

const QCursor QwtPanner::cursor () const¶

Returns

See also

Definition at line 167 of file qwt_panner.cpp.

bool QwtPanner::eventFilter (QObject * object, QEvent * event) [override], [virtual]¶

Event filter. When isEnabled() is true mouse events of the observed widget are filtered.

Parameters

Returns

See also

Definition at line 330 of file qwt_panner.cpp.

QPixmap QwtPanner::grab () const [protected], [virtual]¶

Grab the widget into a pixmap.

Returns

Reimplemented in QwtPlotPanner.

Definition at line 306 of file qwt_panner.cpp.

bool QwtPanner::isEnabled () const¶

Returns

See also

Definition at line 240 of file qwt_panner.cpp.

bool QwtPanner::isOrientationEnabled (Qt::Orientation o) const¶

Returns

See also

Definition at line 231 of file qwt_panner.cpp.

void QwtPanner::moved (int dx, int dy) [signal]¶

Signal emitted, while the widget moved, but panning is not finished.

Parameters

void QwtPanner::paintEvent (QPaintEvent * event) [override], [protected], [virtual]¶

Paint event. Repaint the grabbed pixmap on its current position and fill the empty spaces by the background of the parent widget.

Parameters

Definition at line 253 of file qwt_panner.cpp.

void QwtPanner::panned (int dx, int dy) [signal]¶

Signal emitted, when panning is done

Parameters

void QwtPanner::setAbortKey (int key, Qt::KeyboardModifiers modifiers = Qt::NoModifier)¶

Change the abort key The defaults are Qt::Key_Escape and Qt::NoModifiers

Parameters

Definition at line 132 of file qwt_panner.cpp.

void QwtPanner::setCursor (const QCursor & cursor)¶

Change the cursor, that is active while panning The default is the cursor of the parent widget.

Parameters

See also

Definition at line 156 of file qwt_panner.cpp.

void QwtPanner::setEnabled (bool on)¶

En/disable the panner. When enabled is true an event filter is installed for the observed widget, otherwise the event filter is removed.

Parameters

See also

Definition at line 188 of file qwt_panner.cpp.

void QwtPanner::setMouseButton (Qt::MouseButton button, Qt::KeyboardModifiers modifiers = Qt::NoModifier)¶

Change the mouse button and modifiers used for panning The defaults are Qt::LeftButton and Qt::NoModifier

Definition at line 110 of file qwt_panner.cpp.

void QwtPanner::setOrientations (Qt::Orientations o)¶

Set the orientations, where panning is enabled The default value is in both directions: Qt::Horizontal | Qt::Vertical

/param o Orientation

Definition at line 216 of file qwt_panner.cpp.

void QwtPanner::widgetKeyPressEvent (QKeyEvent * keyEvent) [protected], [virtual]¶

Handle a key press event for the observed widget.

Parameters

See also

Definition at line 482 of file qwt_panner.cpp.

void QwtPanner::widgetKeyReleaseEvent (QKeyEvent * keyEvent) [protected], [virtual]¶

Handle a key release event for the observed widget.

Parameters

See also

Definition at line 502 of file qwt_panner.cpp.

void QwtPanner::widgetMouseMoveEvent (QMouseEvent * mouseEvent) [protected], [virtual]¶

Handle a mouse move event for the observed widget.

Parameters

See also

Definition at line 421 of file qwt_panner.cpp.

void QwtPanner::widgetMousePressEvent (QMouseEvent * mouseEvent) [protected], [virtual]¶

Handle a mouse press event for the observed widget.

Parameters

See also

Reimplemented in QwtPolarPanner.

Definition at line 381 of file qwt_panner.cpp.

void QwtPanner::widgetMouseReleaseEvent (QMouseEvent * mouseEvent) [protected], [virtual]¶

Handle a mouse release event for the observed widget.

Parameters

See also

Definition at line 449 of file qwt_panner.cpp.