IlvSplineSelection Class Reference

Specialization of IlvPolyPointSelection to represent the selectable portions of an IlvSpline object. More...

#include <ilviews/graphics/polyptsel.h>

Inheritance diagram for IlvSplineSelection:

Public Member Functions
	IlvSplineSelection (IlvDisplay *display, IlvGraphic *object, IlvDim size=IlvDefaultSelectionSize, IlvPalette *palette=0)
	Constructor. More...
void	draw (IlvPort *dst, const IlvTransformer *t, const IlvRegion *clip=0) const
	Draws the graphic object. More...
IlBoolean	getHandleLocation (IlUInt idx, IlvPoint &p, const IlvTransformer *t) const
	Returns the location of a given selection handle. More...
IlvInteractor *	getSelectionInteractor () const
	Gets the IlvInteractor used to edit this object. More...
IlvSpline *	getSpline () const
	Gets the IlvSpline object attached to this selection. More...
IlUInt	whichHandle (const IlvPoint &p, const IlvTransformer *t=0) const
	Returns the selection handle containing a given point. More...
Public Member Functions inherited from IlvPolyPointsSelection
	IlvPolyPointsSelection (IlvDisplay *display, IlvGraphic *object, IlvDim size=IlvDefaultSelectionSize, IlvPalette *palette=0)
	Constructor. More...
void	boundingBox (IlvRect &bbox, const IlvTransformer *t) const
	Retrieves the bounding box of the graphic object. More...
void	computeRegion (IlvRegion &r, const IlvTransformer *t=0) const
	Returns the region covered by the object. More...
IlUInt	getHandlesCount (const IlvTransformer *t=0) const
	Returns the number of selection handles. More...
IlvPolyPoints *	getPolyPoints () const
	Gets the IlvPolyPoints object attached to this selection. More...
Public Member Functions inherited from IlvDrawSelection
virtual void	apply (IlvApplyObject f, IlAny a)
	Applies a function to objects that compose another object. More...
virtual void	applyReferences (IlvApplyObject f, IlAny a)
	Applies a function to objects that are referenced by another object. More...
virtual void	applyTransform (const IlvTransformer *t)
	Applies a transformation function to the graphic object. More...
virtual IlBoolean	contains (const IlvPoint &p, const IlvPoint &tp, const IlvTransformer *t) const
	Checks whether a point is in the object. More...
virtual IlvDirection	direction (const IlvPoint &p, const IlvTransformer *t=0) const
	Returns the direction associated to a given point. More...
virtual void	drawHandle (IlvPort *dst, IlUInt idx, const IlvRect &rect, const IlvRegion *clip=0) const
	Draws a selection handle. More...
IlBoolean	getHandleRect (IlUInt idx, IlvRect &rect, const IlvTransformer *t) const
	Returns the rectangle covered by a given selection handle. More...
IlvGraphic *	getObject () const
	Returns the referenced graphic object. More...
IlvDim	getSize () const
	Returns the size of the selection handles. More...
IlBoolean	isVisible (const IlvPort *dst) const
	Indicates whether the selection object is visible. More...
virtual void	setMode (IlvDrawMode m)
	Sets the drawing mode of the object temporarily. More...
void	setObject (IlvGraphic *object)
	Changes the referenced graphic object. More...
virtual void	setOverwrite (IlBoolean o)
	Sets an overwrite mode that modifies how the drawing member functions operate. More...
virtual void	setPalette (IlvPalette *palette)
	Sets the internal palette. More...
void	setSize (IlvDim size)
	Changes the size of the selection handles. More...
virtual void	write (IlvOutputFile &) const
	Writes an object description to a file. More...
virtual IlBoolean	zoomable () const
	Checks whether this object is zoomable. More...
Public Member Functions inherited from IlvSimpleGraphic
	IlvSimpleGraphic (IlvDisplay *display, IlvPalette *palette=0)
	Initializes a new IlvSimpleGraphic. More...
virtual	~IlvSimpleGraphic ()
	Destructor. More...
virtual void	applyResources (const char *, const char *, const char *, const char *, IlvDisplay *=0)
	Applies resources on a graphic object. More...
IlvIntensity	getAlpha () const
	Retrieves the alpha value. More...
IlvAntialiasingMode	getAntialiasingMode () const
	Retrieves the anti-aliasing mode. More...
IlvArcMode	getArcMode () const
	Retrieves the arc mode. More...
IlvColor *	getBackground () const
	Retrieves the background color. More...
IlvColorPattern *	getColorPattern () const
	Retrieves the color pattern. More...
virtual IlvDisplay *	getDisplay () const
	Retrieves the IlvDisplay instance. More...
IlvFillRule	getFillRule () const
	Retrieves the fill rule. More...
IlvFillStyle	getFillStyle () const
	Retrieves the fill style. More...
IlvFont *	getFont () const
	Retrieves the font. More...
IlvColor *	getForeground () const
	Retrieves the foreground color. More...
IlvGradientPattern *	getGradientPattern () const
	Retrieves the gradient pattern. More...
IlvLineStyle *	getLineStyle () const
	Retrieves the line style. More...
IlUShort	getLineWidth () const
	Retrieves the line width. More...
virtual IlvLookFeelHandler *	getLookFeelHandler () const
	Returns the look & feel handler used by this object. More...
virtual int	getLookupStringInputMethod (IlvEvent &event, char *bufferReturn, int bytesBuffer, int *statusReturn)
	Gets the preedit string from an input method. More...
IlvDrawMode	getMode () const
	Retrieves the draw mode. More...
IlBoolean	getOverwrite () const
	Retrieves the overwrite mode. More...
IlvPalette *	getPalette () const
	Retrieves the internal palette value. More...
IlvPattern *	getPattern () const
	Retrieves the pattern. More...
virtual void	invert (IlBoolean=IlFalse)
	Highlights the object. More...
virtual void	registerInputMethod () const
	Controls the connection of a graphic object to an input method. More...
virtual void	setAlpha (IlvIntensity)
	Sets the alpha value of the object. More...
virtual void	setAntialiasingMode (IlvAntialiasingMode)
	Sets the anti-aliasing mode of the object. More...
virtual void	setArcMode (IlvArcMode)
	Sets the arc mode of the object. More...
virtual void	setBackground (IlvColor *)
	Sets the background color of the object. More...
virtual void	setColorPattern (IlvColorPattern *)
	Sets the color pattern of the object. More...
virtual void	setFillRule (IlvFillRule)
	Sets the fill rule of the object. More...
virtual void	setFillStyle (IlvFillStyle)
	Sets the fill style of the object. More...
virtual void	setFocusValuesInputMethod (IlUShort count, const IlvImValue *values) const
	Controls the interaction between a simple graphic object and an input method. More...
virtual void	setFont (IlvFont *)
	Sets the font of the object. More...
virtual void	setForeground (IlvColor *)
	Sets the foreground color of the object. More...
virtual void	setGradientPattern (IlvGradientPattern *)
	Sets the gradient pattern of the object. More...
virtual void	setHolder (IlvGraphicHolder *)
	Sets the object's holder. More...
virtual void	setLineStyle (IlvLineStyle *)
	Sets the line style of the object. More...
virtual void	setLineWidth (IlUShort)
	Sets the line width of the object. More...
virtual void	setPattern (IlvPattern *)
	Sets the pattern of the object. More...
virtual void	setValuesInputMethod (IlUShort count, const IlvImValue *values) const
	Controls the interaction between a graphic object and an input method. More...
virtual void	unRegisterInputMethod () const
	Controls the disconnection of a graphic object from an input method. More...
virtual void	unsetFocusInputMethod () const
	Controls the interaction between a graphic object and an input method. More...
Public Member Functions inherited from IlvGraphic
void	addCallback (const IlSymbol *callbackType, IlvGraphicCallback callback)
	Adds a callback function to a callback list. More...
void	addCallback (const IlSymbol *callbackType, const IlSymbol *callbackName, const IlSymbol *script=0)
	Adds a callback function to a callback list. More...
void	addCallback (const IlSymbol *callbackType, IlvGraphicCallback callbackName, IlAny data)
	Adds a callback function to a callback list. More...
void	addClassProperty (const IlSymbol *key, IlAny value)
	Adds a property to this object's class. More...
void	addProperty (const IlSymbol *key, IlAny value)
	Adds a specific property to the object. More...
void	addTag (const IlSymbol *tag)
	Adds a tag. More...
IlBoolean	applyAttribute (const char *attributeClassName, IlInt value, IlAny checkData=0) const
	Applies attributes. More...
IlBoolean	applyAttribute (const char *attributeClassName, IlFloat value, IlAny checkData=0) const
	Applies attributes. More...
IlBoolean	applyAttribute (const char *attributeClassName, const char *value, IlAny checkData=0) const
	Applies attributes. More...
virtual void	callCallbacks (const IlSymbol *callbackType)
	Calls every callback of a given type. More...
const char *	className () const
	Returns the class name of an object. More...
virtual void	computeFocusRegion (IlvRegion &r, const IlvTransformer *t=0) const
	Computes the region needed for the drawing of the focus. More...
IlBoolean	contains (const IlvPoint &p) const
	Checks whether a point is in the object. More...
virtual IlvGraphic *	copy () const =0
	Copies this object. More...
void	draw (IlvPort *dst, const IlvTransformer *t, const IlvRect *clip) const
	Draws a graphic object. More...
virtual void	drawFocus (IlvPort *dst, const IlvPalette *palette, const IlvTransformer *t=0, const IlvRegion *clip=0) const
	Draws additional drawings for an object that has the keyboard focus. More...
virtual void	getAccessors (const IlSymbol *const **, const IlvValueTypeClass *const **, IlUInt &) const
	Retrieves the list of available accessors of an object. More...
IlvGraphicCallback	getCallback (const IlSymbol *callbackType) const
	Gets a callback. More...
IlvGraphicCallback	getCallback () const
	Gets the main callback function. More...
IlAny	getCallbackData (const IlSymbol *callbackType, IlvGraphicCallback callback) const
	Gets a callback user data. More...
IlAny	getCallbackData (const IlSymbol *callbackType, const IlSymbol *callbackName) const
	Gets a callback user data. More...
IlSymbol *	getCallbackName (const IlSymbol *callbackType) const
	Gets the name of a callback. More...
IlSymbol *	getCallbackName () const
	Gets the symbol that identifies the main callback. More...
virtual IlUInt	getCallbackTypes (const char *const **names, const IlSymbol *const **types) const
	Gets the number of register callback types for the object. More...
virtual IlvGraphic *	getChildAt (IlUInt index) const
	Returns the sub-object of the graphic object specified by index. More...
virtual IlvGraphic *	getChildByName (const char *name) const
	Returns the sub-object of the graphic object specified by a name. More...
virtual IlUInt	getChildCount () const
	Returns the number of children of this graphic object. More...
virtual IlInt	getChildIndex (const IlvGraphic *object) const
	Returns the index of the specified sub-object in this graphic object. More...
virtual IlvGraphic *const *	getChildren (IlUInt &count) const
	Returns an array containing the sub-objects of this graphic object. More...
virtual IlvClassInfo *	getClassInfo () const
	Gets class information. More...
IlAny	getClassProperty (const IlSymbol *key, IlBoolean checkParent=IlFalse) const
	Retrieves the indicated property value in the class of this object. More...
IlAny	getClientData () const
	Gets client data. More...
virtual const char *	getDefaultInteractor () const
	Gets the name of the default interactor for this object. More...
virtual IlvGraphicHolder *	getHolder () const
	Gets a pointer to an object's holder. More...
IlvInteractor *	getInteractor () const
	Returns the interactor associated with the current object. More...
const char *	getName () const
	Gets the name of the object. More...
IlvNamedProperty *	getNamedProperty (const IlSymbol *name) const
	Gets a named property. More...
IlSymbol *	getNextFocusGraphic () const
	Gets the next object in the focus chain. More...
IlSymbol *	getPreviousFocusGraphic () const
	Gets the previous object in the focus chain. More...
IlAny	getProperty (const IlSymbol *key) const
	Gets a property. More...
IlvSmartSet *	getSmartSet () const
	Gets the smart set object containing this graphic object. More...
const IlSymbol *const *	getTags (IlUInt &count) const
	Returns all the tags applied to this object. More...
IlvDim	h () const
	Gets the height value of the object. More...
void	h (IlvDim h)
	Sets the height value of the object. More...
IlBoolean	hasCallback (const IlSymbol *callbackType, IlvGraphicCallback callback) const
	Checks whether a callback function is in a callback list. More...
IlBoolean	hasCallback (const IlSymbol *callbackType, const IlSymbol *callbackName) const
	Checks whether a callback function is in a callback list. More...
IlBoolean	hasCallbackData (const IlSymbol *callbackType, IlvGraphicCallback callback) const
	Checks whether a callback function has user data. More...
IlBoolean	hasCallbackData (const IlSymbol *callbackType, const IlSymbol *callbackName) const
	Checks whether a callback function has user data. More...
const IlvClassInfo *	hasClassProperty (const IlSymbol *key, IlBoolean s=IlFalse) const
	Checks for a class where the keyed property exists. More...
IlBoolean	hasProperty (const IlSymbol *key) const
	Checks whether the object has a particular property. More...
IlBoolean	hasTag (const IlSymbol *tag) const
	Checks whether the object has a specific tag. More...
virtual IlBoolean	inside (const IlvRegion &r, const IlvTransformer *t=0) const
	Determines whether an object with transformation applied is inside the bounding box. More...
IlBoolean	inside (const IlvRect &r, const IlvRect &tr, const IlvTransformer *t=0) const
	Determines whether an object with transformation applied is inside the bounding box. More...
IlBoolean	inside (const IlvRect &r) const
	Determines whether a rectangle is inside the bounding box. More...
virtual IlBoolean	intersects (const IlvRegion &r, const IlvTransformer *t=0) const
	Checks whether a region intersects the bounding box with transformation applied. More...
IlBoolean	intersects (const IlvRect &r, const IlvRect &tr, const IlvTransformer *t=0) const
	Checks whether a rectangle intersects the bounding box with transformation applied. More...
IlBoolean	intersects (const IlvRect &r) const
	Checks whether a rectangle intersects the bounding box. More...
IlBoolean	isFirstFocusGraphic () const
	Checks whether the object is first in the focus chain. More...
IlBoolean	isFocusable () const
	Checks whether the object can receive the keyboard focus. More...
IlBoolean	isInSmartSet () const
	Checks whether a graphic object belongs to a smart set. More...
IlBoolean	isLastFocusGraphic () const
	Checks whether the object is last in the focus chain. More...
IlBoolean	isSensitive () const
	Checks whether the object is sensitive. More...
IlBoolean	isSubtypeOf (const char *parentClass) const
	Checks whether this object's class is a subclass of a given parent class. More...
IlBoolean	isSubtypeOf (const IlvClassInfo *classInfo) const
	Checks whether this object's class is a subclass. More...
virtual void	move (IlvPos x, IlvPos y)
	Moves the graphic object. More...
void	move (const IlvPoint &p)
	Moves the graphic object. More...
void	moveResize (const IlvRect &size)
	Moves and resizes a graphic object. More...
virtual IlBoolean	needsInputContext () const
	Indicates whether the graphic instance can connect to an input method for locale dependent input. More...
virtual void	print (std::ostream &out, int level=0) const
	Prints for debugging purposes. More...
void	removeCallback (const IlSymbol *callbackType, IlvGraphicCallback callback)
	Removes a callback function from a callback list. More...
void	removeCallback (const IlSymbol *callbackType, const IlSymbol *callbackName)
	Removes a callback function from a callback list. More...
IlBoolean	removeClassProperty (const IlSymbol *key)
	Removes a property from this object's class. More...
void	removeInteractor ()
	Removes the interactor from the current object. More...
IlvNamedProperty *	removeNamedProperty (IlSymbol *name)
	Removes a named property from the object. More...
IlBoolean	removeProperty (const IlSymbol *key)
	Removes a property from the object. More...
void	removeTag (const IlSymbol *tag)
	Removes a tag. More...
IlBoolean	replaceClassProperty (const IlSymbol *key, IlAny value)
	Replaces a property in this object's class. More...
IlBoolean	replaceProperty (const IlSymbol *key, IlAny value)
	Replaces a property. More...
virtual void	resize (IlvDim newW, IlvDim newH)
	Resizes a graphic object. More...
virtual void	rotate (const IlvPoint &center, IlFloat angle)
	Rotates a graphic object. More...
virtual void	scale (IlFloat zoomX, IlFloat zoomY)
	Scales the graphic object. More...
void	setCallback (const IlSymbol *callbackType, IlvGraphicCallback callback)
	Sets a new callback. More...
void	setCallback (const IlSymbol *callbackType, const IlSymbol *callbackName, const IlSymbol *script=0)
	Removes all previously set callbacks. More...
void	setCallback (const IlSymbol *callbackType, IlvGraphicCallback callbackName, IlAny data)
	Removes all previously set callbacks. More...
void	setCallback (IlvGraphicCallback callback, IlAny data)
	Sets the main callback function. More...
void	setCallbackData (const IlSymbol *callbackType, IlvGraphicCallback callback, IlAny data)
	Sets the callback user data for a callback function. More...
void	setCallbackData (const IlSymbol *callbackType, const IlSymbol *callbackName, IlAny data)
	Sets the callback user data for a callback function. More...
void	setCallbackName (const IlSymbol *callbackName)
	Sets the symbol that identifies the main callback. More...
void	setClientData (IlAny clientData)
	Sets client data. More...
void	setFirstFocusGraphic ()
	Sets the object to be first in the focus chain.
void	setFocusable (IlBoolean value)
	Set the focusable state of the object. More...
IlBoolean	setInteractor (IlvInteractor *inter)
	Attaches an interactor to the current object. More...
IlBoolean	setInteractor (const char *name)
	Attaches an interactor to this graphic object. More...
void	setLastFocusGraphic ()
	Sets the object to be last in the focus chain.
virtual void	setName (const char *name)
	Sets the name of the object. More...
IlvNamedProperty *	setNamedProperty (IlvNamedProperty *property)
	Sets a named property on the object. More...
virtual void	setNeedsInputContext (IlBoolean val)
	Specifies whether the graphic object should have locale dependent input. More...
void	setNextFocusGraphic (IlSymbol *name)
	Sets the object to be next in the focus chain. More...
void	setPreviousFocusGraphic (IlSymbol *name)
	Sets an object as previous in the focus chain. More...
void	setProperty (const IlSymbol *key, IlAny value)
	Sets a property of the object to a value. More...
virtual void	setSensitive (IlBoolean value)
	Sets the sensitivity of the object. More...
virtual void	symmetry (IlvDirection axis)
	Flips a graphic object. More...
virtual void	translate (IlvPos dx, IlvPos dy)
	Applies a transformation function on a graphic object. More...
IlvDim	w () const
	Gets the width value of the object. More...
void	w (IlvDim w)
	Sets the width value of the object. More...
IlvPos	x () const
	Gets the x coordinate value of the object. More...
void	x (IlvPos x)
	Sets the x coordinate value of the object. More...
IlvPos	y () const
	Gets the y coordinate value of the object. More...
void	y (IlvPos y)
	Sets the y coordinate value of the object. More...
Public Member Functions inherited from IlvValueInterface
virtual IlBoolean	applyValue (const IlvValue &value)
	Apply an accessor. More...
virtual IlBoolean	changeValue (const IlvValue &val)
	Changes the value of an accessor. More...
virtual IlBoolean	changeValues (const IlvValue *values, IlUShort count=0)
	Changes several accessor values simultaneously. More...
virtual IlvValue &	queryValue (IlvValue &val) const
	Retrieves an accessor value. More...
virtual void	queryValues (IlvValue *values, IlUShort count) const
	Retrieves multiple accessor values simultaneously. More...

Additional Inherited Members
Static Public Member Functions inherited from IlvDrawSelection
static IlvPalette *	GetDefaultPalette (IlvDisplay *display)
	Returns the default palette used to create selection objects. More...
static IlvDim	GetDefaultSize ()
	Returns the default size for the selection handles. More...
static IlBoolean	IsVisibleWhenObjectIsInvisible ()
	Returns the visibility policy for selection objects. More...
static void	SetDefaultPalette (IlvPalette *palette)
	Sets the default palette used to create selection objects. More...
static void	SetDefaultSize (IlvDim size)
	Sets the default size for the selection handles. More...
static void	SetVisibleWhenObjectIsInvisible (IlBoolean f)
	Sets the visibility policy for selection objects. More...
Static Public Member Functions inherited from IlvGraphic
static void	AddProperty (const IlSymbol *key, IlAny value)
	Adds a property to this object's class. More...
static void	AddToCallbackTypeList (IlUInt &count, const char *const **names, const IlSymbol *const **types, const char *newName, const IlSymbol *newType)
	Adds a callback to a list. More...
static void	AllowZoom (IlBoolean az)
	Sets or inhibits zooming. More...
static IlvClassInfo *	ClassInfo () const
	Gets class information. More...
static IlAny	GetProperty (const IlSymbol *key, IlBoolean checkSuperClass=IlFalse)
	Retrieves the property value associated with the key in this object's class. More...
static const IlvClassInfo *	HasProperty (const IlSymbol *key, IlBoolean checkSuperClass=IlFalse)
	Checks for the existence of a property for this object's class hierarchy. More...
static IlBoolean	IsZoomAllowed ()
	Checks whether zoomable objects can display themselves when zooming out. More...
static IlvGraphic *	read (IlvInputFile &file, IlvPalette *palette)
	Reads an object description from a file. More...
static IlBoolean	RemoveProperty (const IlSymbol *key)
	Removes a property from this object's class. More...
static IlBoolean	ReplaceProperty (const IlSymbol *key, IlAny value)
	Replaces a property in this object's class. More...
Protected Member Functions inherited from IlvDrawSelection
	IlvDrawSelection (IlvDisplay *display, IlvGraphic *object, IlvDim size=0, IlvPalette *palette=0)
	Constructor. More...

Detailed Description

Specialization of IlvPolyPointSelection to represent the selectable portions of an IlvSpline object.

Library: views

The IlvSplineSelection class is a specialization of the IlvPolyPointsSelection used to represent the selectable portions of an IlvSpline object. It distinguishes markers for the control points, drawn as crosses, and markers for the end points of the Bezier segments, drawn as squares. It also specializes its editing methods to deal specifically with Bezier splines. This class is used by the selection and IlvEditPointsInteractor interactors.

See also

IlvMarker.

Constructor & Destructor Documentation

IlvSplineSelection::IlvSplineSelection	(	IlvDisplay *	display,
		IlvGraphic *	object,
		IlvDim	size = IlvDefaultSelectionSize,
		IlvPalette *	palette = 0
	)

Constructor.

The constructor initializes a new IlvSplineSelection object. The handle size is provided by size.

Parameters

display	The display from which graphic resources are read.
object	The object of type IlvPolyPoints.
size	The handle size, defined in pixels.
palette	The palette of the object.

Member Function Documentation

void IlvSplineSelection::draw ( IlvPort *  dst, const IlvTransformer *  t, const IlvRegion *  clip = 0  ) const

virtual

Draws the graphic object.

Draws the object in the given IlvPort using the transformer t.

Parameters

dst	The destination port this object is drawn onto.
t	The transformer value. If 0, no transformation is performed.
clip	The clipping region, relative to the transformed object, or 0 if none.

Reimplemented from IlvPolyPointsSelection.

IlBoolean IlvSplineSelection::getHandleLocation ( IlUInt  idx, IlvPoint &  p, const IlvTransformer *  t  ) const

virtual

Returns the location of a given selection handle.

This method must be redefined in subclasses.

Parameters

idx	The index of the considered handle.
p	The returned point.
t	The transformer applied to the object.

Returns

IlTrue if idx is a valid index and IlFalse otherwise.

Reimplemented from IlvPolyPointsSelection.

IlvInteractor* IlvSplineSelection::getSelectionInteractor ( ) const

virtual

Gets the IlvInteractor used to edit this object.

Returns

An IlvInteractor that can be used to track events and apply modifications to the edited object.

Reimplemented from IlvPolyPointsSelection.

IlvSpline* IlvSplineSelection::getSpline

(

)

const

Gets the IlvSpline object attached to this selection.

Returns

The IlvSpline used by the selection.

IlUInt IlvSplineSelection::whichHandle ( const IlvPoint &  p, const IlvTransformer *  t = 0  ) const

virtual

Returns the selection handle containing a given point.

Parameters

p	The considered point.
t	The transformer applied to the object.

Returns

The index of the handle containing the point p, or IlvBadIndex if it does not lie in any of the handle.

Reimplemented from IlvDrawSelection.