CanvasPicker Class Reference

#include <CanvasPicker.h>

List of all members.

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Detailed Description

Handles parts of the user interaction for a Plot by registering itself as an event filter for its QwtPlotCanvas.

CanvasPicker relies heavily on its parent being the Graph that owns the Plot it operates on. Additionally, parts of the code use Graph::plotWidget instead of CanvasPicker::plotWidget.

Signals
void	drawTextOff ()
void	modified ()
void	selectPlot ()
void	showMarkerPopupMenu ()
void	showPlotDialog (int)
void	viewImageDialog ()
void	viewLineDialog ()
void	viewTextDialog ()
Public Member Functions
	CanvasPicker (Graph *plot)
void	disableEditing ()
	Disable editing of d_editing_marker on a TAB-key event.
virtual bool	eventFilter (QObject *, QEvent *)
void	selectPeak (const QPoint &p)
void	selectPoints (int n)
Private Member Functions
void	drawLineMarker (const QPoint &, bool endArrow)
void	drawTextMarker (const QPoint &)
Graph *	plot ()
	Return my parent as a Graph.
bool	selectMarker (const QMouseEvent *e)
	Selects and highlights the marker at the given position.
Private Attributes
LineMarker *	d_editing_marker
	The marker that is currently being edited, or NULL. Editing does explicitly _not_ inlude moving and resizing, which are being handled by SelectionMoveResizer (see Graph::d_markers_selector). Currently, only LineMarker provides any other form of editing, but this really should be generalized. See ImageMarker for details.
QPoint	endLinePoint
Plot *	plotWidget
	The Plot I handle user interaction for.
bool	pointSelected
QPoint	startLinePoint

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Constructor & Destructor Documentation

CanvasPicker::CanvasPicker

(

Graph *

plot

)

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Member Function Documentation

void CanvasPicker::disableEditing

(

)

Disable editing of d_editing_marker on a TAB-key event.

Called by Graph::focusNextPrevChild ()

void CanvasPicker::drawLineMarker	(	const QPoint &	point,
		bool	endArrow
	)			[private]

void CanvasPicker::drawTextMarker

(

const QPoint &

point

)

[private]

void CanvasPicker::drawTextOff

(

)

[signal]

bool CanvasPicker::eventFilter	(	QObject *	object,
		QEvent *	e
	)			[virtual]

void CanvasPicker::modified

(

)

[signal]

Graph* CanvasPicker::plot

(

)

[inline, private]

Return my parent as a Graph.

Note that contrary to the method name, this does NOT return the Plot I operate on.

bool CanvasPicker::selectMarker

(

const QMouseEvent *

e

)

[private]

Selects and highlights the marker at the given position.

Returns:

whether a marker was found at pointSelected

void CanvasPicker::selectPeak

(

const QPoint &

p

)

void CanvasPicker::selectPlot

(

)

[signal]

void CanvasPicker::selectPoints

(

int

n

)

void CanvasPicker::showMarkerPopupMenu

(

)

[signal]

void CanvasPicker::showPlotDialog

(

int

)

[signal]

void CanvasPicker::viewImageDialog

(

)

[signal]

void CanvasPicker::viewLineDialog

(

)

[signal]

void CanvasPicker::viewTextDialog

(

)

[signal]

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Member Data Documentation

LineMarker* CanvasPicker::d_editing_marker [private]

The marker that is currently being edited, or NULL. Editing does explicitly _not_ inlude moving and resizing, which are being handled by SelectionMoveResizer (see Graph::d_markers_selector). Currently, only LineMarker provides any other form of editing, but this really should be generalized. See ImageMarker for details.

QPoint CanvasPicker::endLinePoint [private]

Plot* CanvasPicker::plotWidget [private]

The Plot I handle user interaction for.

Note that this has to be owned by my parent Graph.

bool CanvasPicker::pointSelected [private]

QPoint CanvasPicker::startLinePoint [private]

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

• qtiplot/src/CanvasPicker.h
• qtiplot/src/CanvasPicker.cpp

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