NAME¶

QwtPlotPanner - QwtPlotPanner provides panning of a plot canvas.

SYNOPSIS¶

#include <qwt_plot_panner.h> Inherits QwtPanner.

Signals¶

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

Public Member Functions¶

QwtPlotCanvas * canvas () const QwtPlotCanvas * canvas () const const QCursor cursor () const virtual bool eventFilter (QObject *, QEvent *) void getAbortKey (int &key, int &state) const void getMouseButton (int &button, int &buttonState) const bool isAxisEnabled (int axis) const bool isEnabled () const bool isOrientationEnabled (Qt::Orientation) const Qt::Orientations orientations () const QwtPlot * plot () const QwtPlot * plot () const QwtPlotPanner (QwtPlotCanvas *) void setAbortKey (int key, int state=Qt::NoButton) void setAxisEnabled (int axis, bool on) void setCursor (const QCursor &) void setEnabled (bool) void setMouseButton (int button, int buttonState=Qt::NoButton) void setOrientations (Qt::Orientations) virtual ~QwtPlotPanner ()

Protected Slots¶

virtual void moveCanvas (int dx, int dy)

Protected Member Functions¶

virtual void paintEvent (QPaintEvent *) virtual void widgetKeyPressEvent (QKeyEvent *) virtual void widgetKeyReleaseEvent (QKeyEvent *) virtual void widgetMouseMoveEvent (QMouseEvent *) virtual void widgetMousePressEvent (QMouseEvent *) virtual void widgetMouseReleaseEvent (QMouseEvent *)

Detailed Description¶

QwtPlotPanner provides panning of a plot canvas. QwtPlotPanner is a panner for a QwtPlotCanvas, that adjusts the scales of the axes after dropping the canvas on its new position. Together with QwtPlotZoomer and QwtPlotMagnifier powerful ways of navigating on a QwtPlot widget can be implemented easily. Note: See also:

Constructor & Destructor Documentation¶

QwtPlotPanner::QwtPlotPanner (QwtPlotCanvas *canvas) [explicit]¶

Create a plot panner. The panner is enabled for all axes Parameters: See also:

QwtPlotPanner::~QwtPlotPanner () [virtual]¶

Destructor.

Member Function Documentation¶

QwtPlotCanvas * QwtPlotPanner::canvas ()¶

Return observed plot canvas.

const QwtPlotCanvas * QwtPlotPanner::canvas () const¶

Return Observed plot canvas.

const QCursor QwtPanner::cursor () const [inherited] Returns:¶

See also:

bool QwtPanner::eventFilter (QObject *o, QEvent *e) [virtual, inherited]¶

Event filter. When isEnabled() the mouse events of the observed widget are filtered. See also:

void QwtPanner::getAbortKey (int &key, int &state) const [inherited]¶

Get the abort key.

void QwtPanner::getMouseButton (int &button, int &buttonState) const [inherited]¶

Get the mouse button.

bool QwtPlotPanner::isAxisEnabled (intaxis) const Test if an axis is enabled¶

Parameters: Returns: See also:

bool QwtPanner::isEnabled () const [inherited] Returns:¶

See also:

bool QwtPanner::isOrientationEnabled (Qt::Orientationo) const [inherited] Return true if a orientatio is enabled¶

See also:

void QwtPlotPanner::moveCanvas (intdx, intdy) [protected, virtual, slot] Adjust the enabled axes according to dx/dy¶

Parameters: See also:

void QwtPanner::moved (intdx, intdy) [signal, inherited] Signal emitted, while the widget moved, but panning is not finished.¶

Parameters:

Qt::Orientations QwtPanner::orientations () const [inherited]¶

Return the orientation, where paning is enabled.

void QwtPanner::paintEvent (QPaintEvent *pe) [protected, virtual, inherited]¶

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

void QwtPanner::panned (intdx, intdy) [signal, inherited] Signal emitted, when panning is done¶

Parameters:

const QwtPlot * QwtPlotPanner::plot () const¶

Return plot widget, containing the observed plot canvas.

QwtPlot * QwtPlotPanner::plot ()¶

Return plot widget, containing the observed plot canvas.

void QwtPanner::setAbortKey (intkey, intstate = Qt::NoButton) [inherited] Change the abort key The defaults are Qt::Key_Escape and Qt::NoButton¶

Parameters:

void QwtPlotPanner::setAxisEnabled (intaxis, boolon)¶

En/Disable an axis. Axes that are enabled will be synchronized to the result of panning. All other axes will remain unchanged. Parameters: See also:

void QwtPanner::setCursor (const QCursor &cursor) [inherited] Change the cursor, that is active while panning The default is the cursor of the parent widget.¶

Parameters: See also:

void QwtPanner::setEnabled (boolon) [inherited]¶

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:

void QwtPanner::setMouseButton (intbutton, intbuttonState = Qt::NoButton) [inherited] Change the mouse button The defaults are Qt::LeftButton and Qt::NoButton¶

void QwtPanner::setOrientations (Qt::Orientationso) [inherited] Set the orientations, where panning is enabled The default value is in both directions: Qt::Horizontal | Qt::Vertical¶

/param o Orientation

void QwtPanner::widgetKeyPressEvent (QKeyEvent *ke) [protected, virtual, inherited] Handle a key press event for the observed widget.¶

Parameters: See also:

void QwtPanner::widgetKeyReleaseEvent (QKeyEvent *) [protected, virtual, inherited] Handle a key release event for the observed widget.¶

See also:

void QwtPanner::widgetMouseMoveEvent (QMouseEvent *me) [protected, virtual, inherited] Handle a mouse move event for the observed widget.¶

Parameters: See also:

void QwtPanner::widgetMousePressEvent (QMouseEvent *me) [protected, virtual, inherited] Handle a mouse press event for the observed widget.¶

Parameters: See also:

void QwtPanner::widgetMouseReleaseEvent (QMouseEvent *me) [protected, virtual, inherited] Handle a mouse release event for the observed widget.¶

Parameters: See also:

Author¶

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