Base class for MultiWorldCanvas event-based rectangle tools. More...

#include <MultiPVTool.h>

Inheritance diagram for casa::MultiPVTool:

Public Member Functions
	MultiPVTool (viewer::RegionSourceFactory rsf, PanelDisplay pd, Display::KeySym keysym=Display::K_Pointer_Button1, const casacore::Bool persistent=false)
	Constructor. More...

virtual	~MultiPVTool ()
	Destructor. More...

virtual void	disable ()
	Switch the tool off - this erases the rectangle, if any, and calls the base class disable. More...

virtual void	reset (casacore::Bool skipRefresh=false)
	reset to non-existent, non-active rectangle. More...

virtual casacore::Bool	rectangleDefined ()
	Is a rectangle currently defined? More...

viewer::RegionSource *	getRegionSource ()

void	checkPoint (WorldCanvas *wc, State &state)
	this is a non-const function because a non-const RegionTool ptr is returned in 'state' which can then be used for setting the state of the regions managed by the various tools.... More...

void	revokeRegion (viewer::Region *)
	called when the user (read GUI user) indicates that a region should be deleted... More...

const std::set < viewer::region::RegionTypes > &	regionsCreated () const
	returns a set which indicates regions this creator creates... More...

bool	create (viewer::region::RegionTypes, WorldCanvas , const std::vector< std::pair< double, double > > &, const std::string &, viewer::region::TextPosition, const std::vector< int > &, const std::string &, int, int, const std::string &, const std::string &, viewer::region::LineStyle, unsigned int, bool, VOID )
	create regions of various types (e.g. More...

RegionToolTypes	type () const

Public Member Functions inherited from casa::RegionTool
	RegionTool (Display::KeySym keysym=Display::K_Pointer_Button1)
	Constructor taking the primary key to which this tool will respond. More...

	~RegionTool ()

void	otherKeyReleased (const WCPositionEvent &)

void	enable ()
	DISPLAY_PURE_VIRTUAL(RegionTool::create,true);. More...

Public Member Functions inherited from casa::MultiWCTool
	MultiWCTool (const Display::KeySym &keysym=Display::K_Pointer_Button1, bool enable_events=true)
	Constructor taking the primary key to which this tool will respond. More...

virtual	~MultiWCTool ()
	Destructor. More...

virtual void	addWorldCanvas (WorldCanvas &worldcanvas)
	Add/remove a WorldCanvas from the control of this tool. More...

virtual void	removeWorldCanvas (WorldCanvas &worldcanvas)

virtual void	addWorldCanvases (PanelDisplay *pdisp)
	Add/Remove a list of WorldCanvases from PanelDisplay. More...

virtual void	removeWorldCanvases (PanelDisplay *pdisp)

virtual void	operator() (const WCPositionEvent &ev)
	Required operators for event handling - these are called when events occur, and distribute the events to the "user-level" methods. More...

virtual void	operator() (const WCMotionEvent &ev)
	default sends event to cout More...

virtual void	operator() (const WCRefreshEvent &ev)
	original handler interface (still used for WCRefreshEvents) More...

Public Member Functions inherited from casa::DisplayTool
virtual	~DisplayTool ()
	Destructor. More...

virtual void	setKey (const Display::KeySym &keysym)
	Set/get which key to catch. More...

virtual Display::KeySym	getKey () const

Public Member Functions inherited from casa::WCPositionEH
	WCPositionEH ()
	Default Constructor Required. More...

virtual	~WCPositionEH ()
	Destructor. More...

Public Member Functions inherited from casa::WCMotionEH
	WCMotionEH ()
	Default Constructor Required. More...

virtual	~WCMotionEH ()
	Destructor. More...

Public Member Functions inherited from casa::WCRefreshEH
	WCRefreshEH ()
	Default Constructor Required. More...

virtual	~WCRefreshEH ()
	Destructor. More...

Public Member Functions inherited from casa::DisplayEH
virtual void	handleEvent (DisplayEvent &)
	Classes that contain this interface (i.e., derive from it) can override this method to implement actions for whatever types of DisplayEvent they're interested in. More...

virtual	~DisplayEH ()

Public Member Functions inherited from casa::DTVisible
	DTVisible ()
	Default constructor. More...

virtual	~DTVisible ()
	Destructor. More...

virtual casacore::String	drawColor () const
	Return the color to use. More...

virtual casacore::Int	lineWidth () const
	Return the line width to use. More...

virtual casacore::Double	doubleClickInterval () const
	Return the double click interval (in seconds). More...

Public Member Functions inherited from casa::viewer::RegionCreator
	RegionCreator ()
	DISPLAY_PURE_VIRTUAL(RegionCreator::create,true);. More...

virtual	~RegionCreator ()

Protected Member Functions
virtual void	keyPressed (const WCPositionEvent &ev)
	Functions called by the base class event handling operators–and normally only those. More...

virtual void	keyReleased (const WCPositionEvent &ev)

virtual void	otherKeyPressed (const WCPositionEvent &ev)

virtual void	moved (const WCMotionEvent &ev, const viewer::region::region_list_type &)

virtual void	draw (const WCRefreshEvent &, const viewer::region::region_list_type &)
	draw the rectangle (if any) on the object's currently active WC. More...

virtual void	doubleInside ()
	Output callback functions–to be overridden in derived class. More...

virtual void	doubleOutside ()

virtual void	rectangleReady ()
	Called when a rectangle is ready and not being edited. More...

virtual void	get (casacore::Int &x1, casacore::Int &y1, casacore::Int &x2, casacore::Int &y2) const
	Retrieve the rectangle coordinates, in screen pixels. More...

virtual bool	checkType (viewer::region::RegionTypes t)

virtual std::shared_ptr < viewer::PVLine >	allocate_region (WorldCanvas wc, double x1, double y1, double x2, double y2, VOID region_specific_state) const

Protected Member Functions inherited from casa::MultiWCTool
virtual void	updateRegion ()

virtual void	clicked (casacore::Int, casacore::Int)

virtual void	doubleClicked (casacore::Int, casacore::Int)

virtual void	refresh ()
	Copy back-to-front buffer (erasing all MWCTool drawings), then cause this (and all MWCTools on current WC's PC) to draw (or not draw) themselves, according to their current state. More...

virtual void	setClipToDrawArea ()
	Cause subsequent drawing commands to be clipped to the current WC (or its drawing area). More...

virtual void	setClipToWC ()

virtual void	resetClip ()

Protected Member Functions inherited from casa::DisplayTool
	DisplayTool (const Display::KeySym &keysym=Display::K_Pointer_Button1)
	Constructor taking a key to which this tool will initially be attached, typically one of the pointer buttons. More...

	DisplayTool (const DisplayTool &other)
	Copy constructor - construct a new DisplayTool from `other`, using copy semantics. More...

DisplayTool &	operator= (const DisplayTool &other)
	Copy assignment using copy semantics. More...

Display::KeyModifier	keyModifiers ()
	Return the modifier mask. More...

Protected Member Functions inherited from casa::DTVisible
	DTVisible (const DTVisible &other)
	(Required) copy constructor. More...

DTVisible &	operator= (const DTVisible &other)
	(Required) copy assignment. More...

Protected Attributes
viewer::RegionSource *	rfactory

Protected Attributes inherited from casa::MultiWCTool
WorldCanvas *	itsCurrentWC
	WC being (or to be) drawn on (may be 0 initially). More...

Private Types
typedef std::list < std::shared_ptr < viewer::PVLine > >	pvlinelist

Private Member Functions
void	update_stats (const WCMotionEvent &ev)

void	start_new_rectangle (WorldCanvas *, int x, int y)

virtual void	set (const casacore::Int &x1, const casacore::Int &y1, const casacore::Int &x2, const casacore::Int &y2)
	set the pixel coordinates of the rectangle More...

virtual void	get (casacore::Int &x1, casacore::Int &y1) const
	get only the anchor point More...

Private Attributes
casacore::Bool	itsPVLineExists
	do we have a rectangle yet? (if true, itsCurrentWC, itsEmitted, P1, and P2 are valid) More...

casacore::Bool	itsActive
	was the button pressed in the rectangle (or, if none, in an active WC) and not yet released/reset? More...

std::shared_ptr< viewer::PVLine >	resizing_region
	itsActive is being replaced by resizing_region More...

std::shared_ptr< viewer::PVLine >	creating_region

int	resizing_region_handle

casacore::Bool	itsMoving
	(valid only if itsActive==true): true = being moved false = being resized More...

pvlinelist	moving_regions
	itsMoving is being replaced by moving_regions More...

double	moving_linx_

double	moving_liny_

casacore::Bool	itsEmitted
	(valid only if itsPVLineExists==true) Has doubleInside/Outside been called for this rectangle? If so, a key press outside the rectangle will start a new rectangle, as if itsPVLineExists were false. More...

casacore::Vector < casacore::Double >	itsP1
	(Linear) coordinates of the rectangle (invariant over zooms, but not coordinate system changes. More...

casacore::Vector < casacore::Double >	itsP2

casacore::Vector< casacore::Int >	itsHX
	storage of the handle (pixel) coordinates More...

casacore::Vector< casacore::Int >	itsHY

casacore::Int	itsBaseMoveX
	position that move started from More...

casacore::Int	itsBaseMoveY

casacore::Double	itsLastPressTime
	store the times of the last two presses here: More...

casacore::Double	its2ndLastPressTime

pvlinelist	rectangles

PanelDisplay *	pd_

Additional Inherited Members
Public Types inherited from casa::RegionTool
enum	RegionToolTypes { POLYTOOL, RECTTOOL, POINTTOOL, ELLIPSETOOL, POLYLINETOOL, PVLINETOOL }

typedef std::map < viewer::Region *, viewer::region::PointInfo >	region_map_type

Public Types inherited from casa::viewer::RegionCreator
typedef std::list < RegionCreator * >	creator_list_type

Static Public Member Functions inherited from casa::viewer::RegionCreator
static const creator_list_type &	findCreator (region::RegionTypes type)

Detailed Description

Base class for MultiWorldCanvas event-based rectangle tools.

Intended use:

Public interface

Review Status

Date Reviewed:: yyyy/mm/dd

<prerequisites> WCTool </prerequisites>

Etymology

MultiPVTool stands for MultiWorldCanvas PVLine Tool

Synopsis

This class adds to its base WCTool to provide a tool for drawing, resizing and moving rectangles on a WorldCanvas. While MultiPVTool is not abstract, it performs no useful function. The programmer should derive from this class, and implement the functions doubleInside and doubleOutside, which are called when the user double-clicks the key or mouse button inside or outside an existing rectangle respectively. It is up to the programmer to decide what double clicks inside and outside the rectangle correspond to, although it is recommended that a double click inside correspond to the main action of the tool, and a double click outside correspond to a secondary action of the tool, if indeed a secondary action exists.

The rectangle is drawn by dragging the mouse from one corner to the diagonally opposite corner. Once constructed, the rectangle can be resized by dragging its corners, or relocated by dragging inside the rectangle. The rectangle is removed from the display when the Esc key is pressed.

Example

Motivation

Many activities on the WorldCanvas will be based on the user drawing a rectangle, and then proceeding to some action with that rectangle. A nice example is zooming.

Definition at line 92 of file MultiPVTool.h.

Member Typedef Documentation

typedef std::list<std::shared_ptr<viewer::PVLine> > casa::MultiPVTool::pvlinelist

private

Definition at line 185 of file MultiPVTool.h.

Constructor & Destructor Documentation

casa::MultiPVTool::MultiPVTool	(	viewer::RegionSourceFactory *	rsf,
		PanelDisplay *	pd,
		Display::KeySym	keysym = `Display::K_Pointer_Button1`,
		const casacore::Bool	persistent = `false`
	)

Constructor.

virtual casa::MultiPVTool::~MultiPVTool ( )

virtual

Destructor.

Member Function Documentation

virtual std::shared_ptr<viewer::PVLine> casa::MultiPVTool::allocate_region	(	WorldCanvas *	wc,
		double	x1,
		double	y1,
		double	x2,
		double	y2,
		VOID *	region_specific_state
	)		const

protectedvirtual

void casa::MultiPVTool::checkPoint	(	WorldCanvas *	wc,
		State &	state
	)

virtual

this is a non-const function because a non-const RegionTool ptr is returned in 'state' which can then be used for setting the state of the regions managed by the various tools....

Implements casa::RegionTool.

virtual bool casa::MultiPVTool::checkType ( viewer::region::RegionTypes t )

inlineprotectedvirtual

Definition at line 176 of file MultiPVTool.h.

References casa::viewer::region::PVLineRegion.

bool casa::MultiPVTool::create	(	viewer::region::RegionTypes	,
		WorldCanvas *	,
		const std::vector< std::pair< double, double > > &	,
		const std::string &	,
		viewer::region::TextPosition	,
		const std::vector< int > &	,
		const std::string &	,
		int	,
		int	,
		const std::string &	,
		const std::string &	,
		viewer::region::LineStyle	,
		unsigned	int,
		bool	,
		VOID *
	)

virtual

create regions of various types (e.g.

point, rect, poly, etc.). For use when loading casa region files...

Implements casa::RegionTool.

virtual void casa::MultiPVTool::disable ( )

virtual

Switch the tool off - this erases the rectangle, if any, and calls the base class disable.

Reimplemented from casa::RegionTool.

virtual void casa::MultiPVTool::doubleInside ( )

inlineprotectedvirtual

Output callback functions–to be overridden in derived class.

Called when there is a double click inside/outside the rectangle

Reimplemented in casa::MultiPVToolImpl.

Definition at line 162 of file MultiPVTool.h.

virtual void casa::MultiPVTool::doubleOutside ( )

inlineprotectedvirtual

Definition at line 163 of file MultiPVTool.h.

virtual void casa::MultiPVTool::draw	(	const WCRefreshEvent &	,
		const viewer::region::region_list_type &
	)

protectedvirtual

draw the rectangle (if any) on the object's currently active WC.

Only to be called by the base class refresh event handler. Derived objects should use refresh() if they need to redraw, but even that is normally handled automatically.

Reimplemented from casa::RegionTool.

virtual void casa::MultiPVTool::get	(	casacore::Int &	x1,
		casacore::Int &	y1,
		casacore::Int &	x2,
		casacore::Int &	y2
	)		const

protectedvirtual

Retrieve the rectangle coordinates, in screen pixels.

Anchor (if applicable) is (x1,y1). Valid during the output callbacks; to be used by them, as well as internally.

virtual void casa::MultiPVTool::get	(	casacore::Int &	x1,
		casacore::Int &	y1
	)		const

privatevirtual

get only the anchor point

viewer::RegionSource* casa::MultiPVTool::getRegionSource ( )

inline

Definition at line 118 of file MultiPVTool.h.

References rfactory.

virtual void casa::MultiPVTool::keyPressed ( const WCPositionEvent & ev )

protectedvirtual

Functions called by the base class event handling operators–and normally only those.

This is the input that controls the rectangle's appearance and action. When the rectangle is ready and double-click is received, the doubleInside/Outside routine will be invoked.

Reimplemented from casa::RegionTool.

virtual void casa::MultiPVTool::keyReleased ( const WCPositionEvent & ev )

protectedvirtual

Reimplemented from casa::RegionTool.

virtual void casa::MultiPVTool::moved	(	const WCMotionEvent &	ev,
		const viewer::region::region_list_type &
	)

protectedvirtual

Reimplemented from casa::RegionTool.

virtual void casa::MultiPVTool::otherKeyPressed ( const WCPositionEvent & ev )

protectedvirtual

Reimplemented from casa::RegionTool.

virtual casacore::Bool casa::MultiPVTool::rectangleDefined ( )

inlinevirtual

Is a rectangle currently defined?

Definition at line 114 of file MultiPVTool.h.

References itsPVLineExists.

virtual void casa::MultiPVTool::rectangleReady ( )

inlineprotectedvirtual

Called when a rectangle is ready and not being edited.

(Unused so far on the glish level (12/01)).

Definition at line 168 of file MultiPVTool.h.

const std::set<viewer::region::RegionTypes>& casa::MultiPVTool::regionsCreated ( ) const

virtual

returns a set which indicates regions this creator creates...

Implements casa::viewer::RegionCreator.

virtual void casa::MultiPVTool::reset ( casacore::Bool skipRefresh = false )

virtual

reset to non-existent, non-active rectangle.

Refreshes if necessary to erase (unless skipRefresh==true In that case, the caller should do the refresh itself). (Does not unregister from WCs or disable future event handling).

Reimplemented from casa::MultiWCTool.

void casa::MultiPVTool::revokeRegion ( viewer::Region * )

virtual

called when the user (read GUI user) indicates that a region should be deleted...

Implements casa::RegionTool.

virtual void casa::MultiPVTool::set	(	const casacore::Int &	x1,
		const casacore::Int &	y1,
		const casacore::Int &	x2,
		const casacore::Int &	y2
	)

privatevirtual

set the pixel coordinates of the rectangle

void casa::MultiPVTool::start_new_rectangle	(	WorldCanvas *	,
		int	x,
		int	y
	)

private

RegionToolTypes casa::MultiPVTool::type ( ) const

inlinevirtual

Implements casa::RegionTool.

Definition at line 136 of file MultiPVTool.h.

References casa::RegionTool::PVLINETOOL.

void casa::MultiPVTool::update_stats ( const WCMotionEvent & ev )

private

Member Data Documentation

std::shared_ptr<viewer::PVLine> casa::MultiPVTool::creating_region

private

Definition at line 204 of file MultiPVTool.h.

casacore::Double casa::MultiPVTool::its2ndLastPressTime

private

Definition at line 236 of file MultiPVTool.h.

casacore::Bool casa::MultiPVTool::itsActive

private

was the button pressed in the rectangle (or, if none, in an active WC) and not yet released/reset?

Definition at line 201 of file MultiPVTool.h.

casacore::Int casa::MultiPVTool::itsBaseMoveX

private

position that move started from

Definition at line 233 of file MultiPVTool.h.

casacore::Int casa::MultiPVTool::itsBaseMoveY

private

Definition at line 233 of file MultiPVTool.h.

casacore::Bool casa::MultiPVTool::itsEmitted

private

(valid only if itsPVLineExists==true) Has doubleInside/Outside been called for this rectangle? If so, a key press outside the rectangle will start a new rectangle, as if itsPVLineExists were false.

However, a key press inside the rectangle will reset itsEmitted to false, allowing the rectangle to be reused (possibly moved or resized, and emitted again).

Definition at line 222 of file MultiPVTool.h.

casacore::Vector<casacore::Int> casa::MultiPVTool::itsHX

private

storage of the handle (pixel) coordinates

Definition at line 230 of file MultiPVTool.h.

casacore::Vector<casacore::Int> casa::MultiPVTool::itsHY

private

Definition at line 230 of file MultiPVTool.h.

casacore::Double casa::MultiPVTool::itsLastPressTime

private

store the times of the last two presses here:

Definition at line 236 of file MultiPVTool.h.

casacore::Bool casa::MultiPVTool::itsMoving

private

(valid only if itsActive==true): true = being moved false = being resized

Definition at line 209 of file MultiPVTool.h.

casacore::Vector<casacore::Double> casa::MultiPVTool::itsP1

private

(Linear) coordinates of the rectangle (invariant over zooms, but not coordinate system changes.

To do: support the WorldCoordinateChange refresh reason, and reset this tool when it occurs).

Definition at line 227 of file MultiPVTool.h.

casacore::Vector<casacore::Double> casa::MultiPVTool::itsP2

private

Definition at line 227 of file MultiPVTool.h.

casacore::Bool casa::MultiPVTool::itsPVLineExists

private

do we have a rectangle yet? (if true, itsCurrentWC, itsEmitted, P1, and P2 are valid)

Definition at line 197 of file MultiPVTool.h.

Referenced by rectangleDefined().

double casa::MultiPVTool::moving_linx_

private

Definition at line 212 of file MultiPVTool.h.

double casa::MultiPVTool::moving_liny_

private

Definition at line 213 of file MultiPVTool.h.

pvlinelist casa::MultiPVTool::moving_regions

private

itsMoving is being replaced by moving_regions

Definition at line 211 of file MultiPVTool.h.

PanelDisplay* casa::MultiPVTool::pd_

private

Definition at line 239 of file MultiPVTool.h.

pvlinelist casa::MultiPVTool::rectangles

private

Definition at line 238 of file MultiPVTool.h.

std::shared_ptr<viewer::PVLine> casa::MultiPVTool::resizing_region

private

itsActive is being replaced by resizing_region

Definition at line 203 of file MultiPVTool.h.

int casa::MultiPVTool::resizing_region_handle

private

Definition at line 205 of file MultiPVTool.h.

viewer::RegionSource* casa::MultiPVTool::rfactory

protected

Definition at line 182 of file MultiPVTool.h.

Referenced by getRegionSource().

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

casa/code/display/DisplayEvents/MultiPVTool.h

Public Member Functions

Protected Member Functions

Protected Attributes

Private Types

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Intended use:

Review Status

Etymology

Synopsis

Example

Motivation

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation