SciDAVis 1.D4

Draw images on a QwtPlot. More...

#include <PlotEnrichement.h>

Inheritance diagram for PlotEnrichement:

List of all members.

Public Member Functions
double	bottom ()
virtual QwtDoubleRect	boundingRect () const
	Return bounding rectangle in plot coordinates.
QPoint	origin () const
	Return position in paint coordinates.
	PlotEnrichement ()
virtual QRect	rect () const
	Return bounding rectangle in paint coordinates.
double	right ()
virtual void	setBoundingRect (double left, double top, double right, double bottom)
	Set position (xValue() and yValue()), right and bottom values giving everything in plot coordinates.
void	setOrigin (const QPoint &p)
	Set QwtPlotMarker::value() in paint coordinates.
virtual void	setRect (int x, int y, int w, int h)
	Set value (position) and d_size, giving everything in paint coordinates.
void	setSize (const QSize &size)
	Set d_size.
QSize	size ()
	Return d_size.
virtual void	updateBoundingRect ()

Private Member Functions
QRect	calculatePaintingRect ()

Private Attributes
QPoint	d_pos
	The position in paint coordiantes.
QSize	d_size
	The size (in paint coordinates).
double	d_x_right
	The right side position in scale coordinates.
double	d_y_bottom
	The bottom side position in scale coordinates.

Detailed Description

Draw images on a QwtPlot.

PlotEnrichement draws #d_pic at the position specified by d_pos, scaled to d_size. #d_file_name isn't used internally, but only provided to help Graph manage save/restore.

Future Plans

Add a QwtPlotItem subclass (PlotEnrichment ?) and make PlotEnrichement, Legend and ArrowMarker subclasses of that. These (usually) don't really mark a specific point in a plot and they don't use the symbol/label functionality of QwtPlotMarker. Instead, it would make sense to provide a unified move/resize (or even general affine transformations via QMatrix) interface and support for positioning them either at fixed plot coordinates (like QwtPlotMarker) or at a fixed drawing position within a QwtPlot (like a QWidget child); leaving the choice of positioning policy to the user. If PlotEnrichment (ideas for a better name?) inherits from both QWidget and QwtPlotItem (which is luckily no QObject) and provides a unified drawing framework, its instances could be added directly to MultiLayer without the need for a dummy Graph in between. Could also help to avoid the hack in MultiLayer::updateMarkersBoundingRect().

Following the above thoughts, it might help clarify the purpose of PlotEnrichement, Legend and ArrowMarker if they are renamed according to the new superclasse's name (e.g. ImageEnrichment, TextEnrichment and LineEnrichment).

See the documentation of SelectionMoveResizer for other advantages of this approach.

See also:: Legend, ArrowMarker

Constructor & Destructor Documentation

PlotEnrichement::PlotEnrichement ( )

Member Function Documentation

double PlotEnrichement::bottom ( )

inline

Reimplemented in ImageMarker.

References d_y_bottom.

Referenced by Legend::boundingRect(), and setBoundingRect().

QwtDoubleRect PlotEnrichement::boundingRect ( ) const

virtual

Return bounding rectangle in plot coordinates.

Reimplemented in ArrowMarker, ImageMarker, and Legend.

References d_x_right, and d_y_bottom.

QRect PlotEnrichement::calculatePaintingRect ( )

private

References d_x_right, and d_y_bottom.

Referenced by setBoundingRect(), and setOrigin().

QPoint PlotEnrichement::origin ( ) const

inline

Return position in paint coordinates.

Reimplemented in ImageMarker.

References d_pos.

virtual QRect PlotEnrichement::rect ( ) const

inlinevirtual

Return bounding rectangle in paint coordinates.

Reimplemented in ArrowMarker, ImageMarker, and Legend.

References d_pos, and d_size.

double PlotEnrichement::right ( )

inline

Reimplemented in ImageMarker.

References d_x_right.

Referenced by Legend::boundingRect(), and setBoundingRect().

void PlotEnrichement::setBoundingRect	(	double	left,
		double	top,
		double	right,
		double	bottom
	)

virtual

Set position (xValue() and yValue()), right and bottom values giving everything in plot coordinates.

Reimplemented in ArrowMarker, and ImageMarker.

References bottom(), calculatePaintingRect(), d_pos, d_size, d_x_right, d_y_bottom, and right().

void PlotEnrichement::setOrigin ( const QPoint & p )

Set QwtPlotMarker::value() in paint coordinates.

Reimplemented in ImageMarker, and Legend.

References calculatePaintingRect(), d_pos, d_size, and updateBoundingRect().

void PlotEnrichement::setRect	(	int	x,
		int	y,
		int	w,
		int	h
	)

virtual

Set value (position) and d_size, giving everything in paint coordinates.

Reimplemented in ImageMarker.

References d_pos, d_size, and updateBoundingRect().

void PlotEnrichement::setSize ( const QSize & size )

Reimplemented in ImageMarker.

QSize PlotEnrichement::size ( )

inline

Return d_size.

Reimplemented in ImageMarker.

References d_size.

Referenced by Legend::drawLegends(), and Legend::itemsHeight().

void PlotEnrichement::updateBoundingRect ( )

virtual

Reimplemented in ArrowMarker, and ImageMarker.

References d_pos, d_size, d_x_right, and d_y_bottom.

Referenced by setOrigin(), and setRect().

Member Data Documentation

QPoint PlotEnrichement::d_pos

private

The position in paint coordiantes.

Reimplemented in Legend, and ImageMarker.

Referenced by origin(), rect(), setBoundingRect(), setOrigin(), setRect(), and updateBoundingRect().

QSize PlotEnrichement::d_size

private

The size (in paint coordinates).

Reimplemented in ImageMarker.

Referenced by rect(), setBoundingRect(), setOrigin(), setRect(), size(), and updateBoundingRect().

double PlotEnrichement::d_x_right

private

The right side position in scale coordinates.

Reimplemented in ImageMarker.

Referenced by boundingRect(), calculatePaintingRect(), right(), setBoundingRect(), and updateBoundingRect().

double PlotEnrichement::d_y_bottom

private

The bottom side position in scale coordinates.

Reimplemented in ImageMarker.

Referenced by bottom(), boundingRect(), calculatePaintingRect(), setBoundingRect(), and updateBoundingRect().

The documentation for this class was generated from the following files:

scidavis/src/PlotEnrichement.h
scidavis/src/PlotEnrichement.cpp