Graphic class. More...

#include <ilviews/graphics/polypts.h>

Inheritance diagram for IlvPolyPoints:

Public Member Functions
	IlvPolyPoints (IlvDisplay display, IlUInt count, IlvPoint points, IlvPalette *palette=0, IlBoolean computeBBox=IlTrue)
	Constructor. More...

virtual void	addPoint (const IlvPoint &point, IlUInt index)
	Add a point. More...

virtual void	addPoints (IlUInt count, IlvPoint *points, IlUInt index)
	Add an array of points. More...

virtual void	applyTransform (const IlvTransformer *)
	Applies a transformation function to the graphic object. More...

virtual void	boundingBox (IlvRect &, const IlvTransformer *t=0) const
	Retrieves the bounding box of the graphic object. More...

virtual void	computeBBox (IlvRect &bbox)
	Compute the bounding box cache. More...

virtual void	draw (IlvPort , const IlvTransformer t=0, const IlvRegion *clip=0) const =0
	Draws the graphic object. More...

virtual void	getPoint (IlvPoint &point, IlUInt index) const
	Get a point. More...

IlvPoint *	getPoints (IlvPoint *buffer=0) const
	Get the definition points. More...

IlBoolean	inBBox (const IlvPoint &point) const
	Locate a point in the bounding box cache. More...

IlUInt	numberOfPoints () const
	Get the number of points. More...

virtual IlBoolean	removePoints (IlUInt start, IlUInt count)
	Remove a set of points. More...

virtual void	setPoint (const IlvPoint &point, IlUInt index)
	Set a point. More...

virtual IlvPoint *	transformPoints (const IlvTransformer *t) const
	Transform all the points. More...

virtual void	translatePoint (const IlvPoint &delta, IlUInt index)
	Translate a point. 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...

IlString	getCssElementName () const override
	Returns the DOM element name of this stylable object. 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...

IlvDisplay *	getStylableDisplay () const override
	Returns the display for this object. More...

IlString	getStylableName () const override
	Returns the name of this object. More...

IlvStylist *	getStylist () const override
	Returns the stylist for this object. 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	setMode (IlvDrawMode)
	Sets the drawing mode of the object temporarily. More...

virtual void	setOverwrite (IlBoolean)
	Sets an overwrite mode that modifies how the drawing member functions operate. More...

virtual void	setPalette (IlvPalette *palette)
	Sets the internal palette. 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, const IlSymbol callbackName, const IlSymbol *script=0)
	Adds a callback function to a callback list. More...

void	addCallback (const IlSymbol *callbackType, IlvGraphicCallback callback)
	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...

virtual void	apply (IlvApplyObject function, IlAny arg)
	Applies a function to objects that compose another object. More...

IlBoolean	applyAttribute (const char attributeClassName, const char 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, IlInt value, IlAny checkData=0) const
	Applies attributes. More...

virtual void	applyReferences (IlvApplyObject function, IlAny arg)
	Applies a function to objects that are referenced by another object. 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 IlBoolean	contains (const IlvPoint &p, const IlvPoint &tp, const IlvTransformer *t=0) 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
	Gets the main callback function. More...

IlvGraphicCallback	getCallback (const IlSymbol *callbackType) const
	Gets a callback. More...

IlAny	getCallbackData (const IlSymbol callbackType, const IlSymbol callbackName) const
	Gets a callback user data. More...

IlAny	getCallbackData (const IlSymbol *callbackType, IlvGraphicCallback callback) const
	Gets a callback user data. More...

IlSymbol *	getCallbackName () const
	Gets the symbol that identifies the main callback. More...

IlSymbol *	getCallbackName (const IlSymbol *callbackType) const
	Gets the name of a 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, const IlSymbol callbackName) const
	Checks whether a callback function is in a callback list. More...

IlBoolean	hasCallback (const IlSymbol *callbackType, IlvGraphicCallback callback) const
	Checks whether a callback function is in a callback list. More...

IlBoolean	hasCallbackData (const IlSymbol callbackType, const IlSymbol callbackName) const
	Checks whether a callback function has user data. More...

IlBoolean	hasCallbackData (const IlSymbol *callbackType, IlvGraphicCallback callback) 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...

IlBoolean	inside (const IlvRect &r) const
	Determines whether a rectangle 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...

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	intersects (const IlvRect &r) const
	Checks whether a rectangle intersects the bounding box. 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...

virtual IlBoolean	intersects (const IlvRegion &r, const IlvTransformer *t=0) const
	Checks whether a region intersects the bounding box with transformation applied. 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...

void	move (const IlvPoint &p)
	Moves the graphic object. More...

virtual void	move (IlvPos x, IlvPos y)
	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, const IlSymbol callbackName)
	Removes a callback function from a callback list. More...

void	removeCallback (const IlSymbol *callbackType, IlvGraphicCallback callback)
	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, const IlSymbol callbackName, const IlSymbol *script=0)
	Removes all previously set callbacks. More...

void	setCallback (const IlSymbol *callbackType, IlvGraphicCallback callback)
	Sets a new callback. 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, const IlSymbol callbackName, IlAny data)
	Sets the callback user data for a callback function. More...

void	setCallbackData (const IlSymbol *callbackType, IlvGraphicCallback callback, 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 (const char *name)
	Attaches an interactor to this graphic object. More...

IlBoolean	setInteractor (IlvInteractor *inter)
	Attaches an interactor to the current 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...

virtual void	write (IlvOutputFile &output) const =0
	Writes an object description to a file. 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...

virtual IlBoolean	zoomable () const
	Checks whether this object is zoomable. 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...

Public Member Functions inherited from IlvStylable
	IlvStylable ()
	Constructor.

IlvStylable *	getChildStylable (const IlString &cssElementName) const
	Returns child stylable with specified css element name. Returns null if the child is not found. More...

virtual IlString	getCssElementClass () const
	Returns the DOM class of this stylable object. <cssElement class="cssClass"> More...

IlString	getCssElementId () const
	Returns the DOM element id of this stylable object. <cssElement id="cssId"> More...

virtual void	getOuterStylableSize (IlvDim &w, IlvDim &h) const
	Returns the size of the outer stylable if any. More...

virtual IlvStylable *	getStylableParent () const
	Returns the parent of this object in the style hierarchy. More...

virtual void	getStylableSize (IlvDim &w, IlvDim &h) const
	Returns the size of this object. More...

void	setCssId (const IlString &id)
	Sets the object's css styling id. The id is initially the same as the name property of the object, but can be overridden using this function. More...

virtual void	setupDefaultCssStyle ()
	virtual functions used to setupDefaultStyle. Override this to change default styling

Additional Inherited Members
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...

Static Public Member Functions inherited from IlvStylable
static void	DisableCssDom ()
	Disables any further DOM additions. More...

Detailed Description

Graphic class.

Library: views

IlvPolyPoints is an abstract class from which is derived every class having shapes composed of several point coordinates. This class lets you derive your own graphic objects that are defined by a series of pairs of coordinates.
For better performance, the bounding box of the object, which is the smallest rectangle that contains all the points that define its shape, is store in a cache.

Note that the bounding box of the objects created from IlvPolyPoints do not take the graphic properties (such as the line width) into account.

Constructor & Destructor Documentation

◆ IlvPolyPoints()

IlvPolyPoints::IlvPolyPoints	(	IlvDisplay *	display,
		IlUInt	count,
		IlvPoint *	points,
		IlvPalette *	palette = `0`,
		IlBoolean	computeBBox = `IlTrue`
	)

Constructor.

The constructor initializes an IlvPolyPoints object with a predefine shape provided in an array of IlvPoint.

Parameters

display	The display object that will display this object.
count	The number of points of this object.
points	An array of at least count points that define the shape of this object. This array is copied by this constructor.
palette	The palette that will be used by this object. If left unspecified or set to 0, the default palette of the display (see `IlvDisplay::defaultPalette()`) will be used.
computeBBox	Indicates, if `IlTrue` that the bounding box of the object should be computed as soon as the object is initialized. You can set it to `IlFalse` to delay the computation of the bounding box cache.

Member Function Documentation

◆ addPoint()

virtual void IlvPolyPoints::addPoint	(	const IlvPoint &	point,
		IlUInt	index
	)

virtual

Add a point.

The bounding box cache is updated accordingly. Adds a new point to this polypoint object.

Parameters

point	The point to be added.
index	The index, in the point array, where the point will be added. The point is inserted at the index ^th entry of the point array, that is, after the index ^th value (the array starts at the rank 0). If the index is greater than the entry number of the point array, point is added after the last entry.

◆ addPoints()

virtual void IlvPolyPoints::addPoints	(	IlUInt	count,
		IlvPoint *	points,
		IlUInt	index
	)

virtual

Add an array of points.

The bounding box cache is updated accordingly.

Parameters

count	The number of points to be added.
points	The array of at least count points that must be added. This array is copied.
index	The index, in the point array, where the points will be added. The points are inserted starting at the index ^th entry of the point array, that is, after the index ^th value (the array starts at the rank 0). If the index is greater than the entry number of the point array, the points are added after the last entry

◆ applyTransform()

virtual void IlvPolyPoints::applyTransform ( const IlvTransformer * t )

virtual

Applies a transformation function to the graphic object.

Applies the transformer t to the shape of the object. Unless the transformation is a scaling operation, the result of applying it to certain objects can be insignificant. For example, applying a non-scaling transformer to an IlvRectangle object is meaningless, since the rectangle remains a rectangle. On the other hand, meaningful transformations can be applied to objects that are instances of types such as IlvLine or IlvPolyPoints.

Note: applyTransform() is one of the most important method to be rewritten for classes derived from IlvGraphic, since it is called by the resize(), move(), moveResize(), scale(), etc., methods.

Parameters

t	The transformer value. If `0`, no transformation is performed.

Implements IlvGraphic.

◆ boundingBox()

virtual void IlvPolyPoints::boundingBox	(	IlvRect &	bbox,
		const IlvTransformer *	t = `0`
	)		const

virtual

Retrieves the bounding box of the graphic object.

Sets bbox, the rectangle reference parameter, to be the bounding box of the object. Since the object can appear within a transformed environment (for example, in a multiview editor), an IlvTransformer object occurs as an optional parameter in order to compute the bounding box in the coordinate system of the transformed environment.

Parameters

bbox	The bounding box to be set.
t	A transformer value or `0` if there is no transformation.

Implements IlvGraphic.

Reimplemented in IlvArrowPolyline.

◆ computeBBox()

virtual void IlvPolyPoints::computeBBox ( IlvRect & bbox )

virtual

Compute the bounding box cache.

Computes the actual bounding box of the object and stores it in that parameter. Is internally called to store the bounding box in a cache memory.

Parameters

bbox	Is set to the computed bounding box.

Reimplemented in IlvClosedSpline, and IlvSpline.

◆ draw()

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

pure 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.

Implements IlvGraphic.

Implemented in IlvFilledSpline, IlvClosedSpline, IlvSpline, IlvPolygon, IlvPolyline, IlvOutlinePolygon, and IlvArrowPolyline.

◆ getPoint()

virtual void IlvPolyPoints::getPoint	(	IlvPoint &	point,
		IlUInt	index
	)		const

virtual

Get a point.

Parameters

point	The point that receives the location of the indicated point.
index	The index of the point to be queried. The first point of the object has an index of `0`.

◆ getPoints()

IlvPoint* IlvPolyPoints::getPoints ( IlvPoint * buffer = 0 ) const

Get the definition points.

Parameters

buffer A buffer large enough to store all the points of this object, or 0.

Returns: An array of points that define this object's shape. If the parameter buffer is given, it is filled with the values of points and returned. If buffer is unspecified or set to 0, then an internal private array is filled and returned. In the latter case, you should not delete the returned array.

◆ inBBox()

IlBoolean IlvPolyPoints::inBBox ( const IlvPoint & point ) const

Locate a point in the bounding box cache.

Parameters

point The point that must be checked.

Returns: A IlBoolean value that indicates whether or not the parameter point is located inside the cached bounding box of the object.

◆ numberOfPoints()

IlUInt IlvPolyPoints::numberOfPoints ( ) const

Get the number of points.

Returns: The number of points defining the object.

◆ removePoints()

virtual IlBoolean IlvPolyPoints::removePoints	(	IlUInt	start,
		IlUInt	count
	)

virtual

Remove a set of points.

The bounding box cache is updated accordingly.

Parameters

start	The starting index of the points to be removed.
count	The number of points to be removed.

Returns: A Boolean value that indicates, if IlTrue, that the operation was successful. It returns IlFalse if the removal cannot take place, which means that the parameters are illegal. You cannot remove all the points from an IlvPolyPoints.

◆ setPoint()

virtual void IlvPolyPoints::setPoint	(	const IlvPoint &	point,
		IlUInt	index
	)

virtual

Set a point.

The bounding box cache is updated accordingly.

Parameters

point	The value that is set to the indicated point.
index	The index of the point to be modified. The first point of the object has an index of `0`.

◆ transformPoints()

virtual IlvPoint* IlvPolyPoints::transformPoints ( const IlvTransformer * t ) const

virtual

Transform all the points.

Allows you to globally apply a transformation efficiently. This member function is used in all methods that compute the object's bounding, and the draw() methods of all the subtypes of IlvPolyPoints.

Parameters

t	The transformer that is applied to all the points.

Returns: An array of transformed points. The size of this array is the same as this IlvPolyPoint's internal point array. You must not delete the returned array.

◆ translatePoint()

virtual void IlvPolyPoints::translatePoint	(	const IlvPoint &	delta,
		IlUInt	index
	)

virtual

Translate a point.

The bounding box cache is updated accordingly.

Parameters

delta	The distance vector that is applied to the indicated point.
index	The index of the point to be translated. The first point of the object has an index of `0`.

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ IlvPolyPoints()

Member Function Documentation

◆ addPoint()

◆ addPoints()

◆ applyTransform()

◆ boundingBox()

◆ computeBBox()

◆ draw()

◆ getPoint()

◆ getPoints()

◆ inBBox()

◆ numberOfPoints()

◆ removePoints()

◆ setPoint()

◆ transformPoints()

◆ translatePoint()