Graphic class. More...

#include <ilviews/graphics/cirscale.h>

Inheritance diagram for IlvCircularScale:

Public Member Functions
	IlvCircularScale (IlvDisplay display, const IlvRect &drawrect, char labels[], IlFloat start=0., IlFloat range=180., IlUShort steps=0, IlUShort substeps=0, IlBoolean in=IlFalse, IlUShort stepsize=10, IlUShort substepsize=5, IlvPalette *palette=0)
	Constructor. More...

	IlvCircularScale (IlvDisplay display, const IlvRect &drawrect, const char format, IlFloat min, IlFloat max, IlFloat start=0., IlFloat range=180., IlUShort steps=0, IlUShort substeps=0, IlBoolean in=IlFalse, IlUShort stepsize=10, IlUShort substepsize=5, IlvPalette *palette=0)
	Constructor. More...

virtual void	applyTransform (const IlvTransformer *t)
	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 IlBoolean	contains (const IlvPoint &p, const IlvPoint &tp, const IlvTransformer *t=0) const
	Checks whether a point is in the object. More...

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

IlBoolean	getDirection () const
	Retrieves the tick mark direction. More...

IlFloat	getRange () const
	Retrieves the angle range of this scale. More...

IlFloat	getStart () const
	Retrieves the start angle of this scale. More...

void	setDirection (IlBoolean in)
	Sets the tick mark direction. More...

void	setRange (IlFloat range)
	Sets the angle range of this scale. More...

void	setStart (IlFloat start)
	Sets the start angle of this scale. More...

Public Member Functions inherited from IlvScale
	IlvScale (IlvDisplay display, const IlvRect &drawrect, char labels[], IlUShort steps=2, IlUShort substeps=0, IlUShort stepsize=10, IlUShort substepsize=5, IlvPalette *palette=0)
	Constructor. More...

	IlvScale (IlvDisplay display, const IlvRect &drawrect, const char format=0, IlFloat min=0, IlFloat max=100, IlUShort steps=0, IlUShort substeps=0, IlUShort stepsize=10, IlUShort substepsize=5, IlvPalette *palette=0)
	Constructor. More...

const char *	getFormat () const
	Gets the format of the step labels. More...

const char *	getLabel (IlUShort idx) const
	Gets a label. More...

char const	getLabels () const
	Gets the labels. More...

void	getLabelSizes (IlUShort idx, IlvDim &w, IlvDim &h, IlvDim &d) const
	Gets a label's sizes. More...

IlFloat	getMax () const
	Gets the maximum value of the scale. More...

IlFloat	getMin () const
	Gets the minimum value of the scale. More...

IlUShort	getSteps () const
	Gets the number of steps. More...

IlUShort	getStepSize () const
	Gets the step size. More...

IlUShort	getSubSteps () const
	Gets the number of substeps. More...

IlUShort	getSubStepSize () const
	Gets the substep size. More...

virtual void	setFont (IlvFont *)
	Sets the font of the object. More...

void	setFormat (const char *format)
	Sets the format of the step labels. More...

void	setLabel (IlUShort idx, const char *label)
	Sets a label. More...

void	setLabels (IlUShort count, const char const labels=0)
	Sets the labels. More...

void	setLabels (IlUShort count, IlFloat min, IlFloat max, const char *format)
	Sets the labels. More...

void	setMax (IlFloat max)
	Sets the maximum value of the scale. More...

void	setMin (IlFloat min)
	Sets the minimum value of the scale. More...

virtual void	setPalette (IlvPalette *)
	Sets the internal palette. More...

void	setSteps (IlUShort steps)
	Sets the number of steps. More...

void	setStepSize (IlUShort stepsize)
	Sets the step size. More...

void	setSubSteps (IlUShort substeps)
	Sets the number of substeps. More...

void	setSubStepSize (IlUShort substepsize)
	Sets the substep size. 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	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	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 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...

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...

Detailed Description

Graphic class.

Library: views

Use this class to create circular scales like those shown in the following figure:

- Circular scales -

Accessors\nAccessors provide a scriptable and uniform way to inspect and modify an object by using its base class methods <tt>IlvValueInterface::queryValue()</tt>, <tt>IlvValueInterface::queryValues()</tt>, <tt>IlvValueInterface::changeValue()</tt>, <tt>IlvValueInterface::changeValues()</tt>.\n\n\nThis class inherits the accessors of its superclass \c IlvScale and adds the following ones:

Name	Type	Equivalent methods
`start`	Float	`getStart()`, `setStart()`
`range`	Float	`getRange()`, `setRange()`
`direction`	Boolean	`getDirection()`, `setDirection()`

Constructor & Destructor Documentation

◆ IlvCircularScale() [1/2]

IlvCircularScale::IlvCircularScale	(	IlvDisplay *	display,
		const IlvRect &	drawrect,
		const char *	format,
		IlFloat	min,
		IlFloat	max,
		IlFloat	start = `0.`,
		IlFloat	range = `180.`,
		IlUShort	steps = `0`,
		IlUShort	substeps = `0`,
		IlBoolean	in = `IlFalse`,
		IlUShort	stepsize = `10`,
		IlUShort	substepsize = `5`,
		IlvPalette *	palette = `0`
	)

Constructor.

Parameters

display	The display object that draws this object.
drawrect	The initial size of this object.
format	The format, as it would be given to `printf` to display the scale labels.
min	The minimum value of this scale.
max	The maximum value of this scale.
start	The start angle of this scale.
range	The angle range of this scale.
steps	The number of steps of this scale. This is also the number of labels that are computed and displayed.
substeps	The number of substeps that are displayed between each step.
in	Set to `IlTrue` if the step ticks must be displayed inside the gauge. If set to `IlFalse`, the ticks are displayed outside the ellipse that define the gauge.
stepsize	The size of the step ticks, in pixels.
substepsize	The size of the substep ticks, in pixels.
palette	The initial palette that is used to display this object.

◆ IlvCircularScale() [2/2]

IlvCircularScale::IlvCircularScale	(	IlvDisplay *	display,
		const IlvRect &	drawrect,
		char *	labels[],
		IlFloat	start = `0.`,
		IlFloat	range = `180.`,
		IlUShort	steps = `0`,
		IlUShort	substeps = `0`,
		IlBoolean	in = `IlFalse`,
		IlUShort	stepsize = `10`,
		IlUShort	substepsize = `5`,
		IlvPalette *	palette = `0`
	)

Constructor.

Parameters

display	The display object that draws this object.
drawrect	The initial size of this object.
labels	An array of strings that are used as the initial labels of this scale. There must be at least steps strings in this array, and all strings are copied internally.
start	The start angle of this scale.
range	The angle range of this scale.
steps	The number of steps of this scale. This is also the number of labels that are computed and displayed.
substeps	The number of substeps that are displayed between each step.
in	Set to `IlTrue` if the step ticks must be displayed inside the gauge. If set to `IlFalse`, the ticks are displayed outside the ellipse that define the gauge.
stepsize	The size of the step ticks, in pixels.
substepsize	The size of the substep ticks, in pixels.
palette	The initial palette that is used to display this object.

Member Function Documentation

◆ applyTransform()

virtual void IlvCircularScale::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.

Reimplemented from IlvScale.

◆ boundingBox()

virtual void IlvCircularScale::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 IlvScale.

◆ contains()

virtual IlBoolean IlvCircularScale::contains	(	const IlvPoint &	p,
		const IlvPoint &	tp,
		const IlvTransformer *	t = `0`
	)		const

virtual

Checks whether a point is in the object.

Checks whether the coordinates are located in the shape of this object. A transformation parameter allows you to use the view's coordinate system for this test.

Parameters

p	The point to be tested.
tp	The transformed point obtained by applying the transformer t to the point p.
t	A transformer value, or `0` if there is no transformation.

Returns: IlTrue when the point p lies inside the outline of the object.

Reimplemented from IlvGraphic.

◆ draw()

virtual void IlvCircularScale::draw	(	IlvPort *	dst,
		const IlvTransformer *	t = `0`,
		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.

Implements IlvScale.

◆ getDirection()

IlBoolean IlvCircularScale::getDirection ( ) const

Retrieves the tick mark direction.

Returns: The direction of the tick marks. It is IlTrue if the tick marks are drawn from the exterior of the scale to the center, and IlFalse if the tick marks are drawn to the outside of the scale.

◆ getRange()

IlFloat IlvCircularScale::getRange ( ) const

Retrieves the angle range of this scale.

Returns: The angle range of this scale in degrees. This value added to the start angle gives the location of the last tick mark.

◆ getStart()

IlFloat IlvCircularScale::getStart ( ) const

Retrieves the start angle of this scale.

Returns: The start angle of this scale in degrees. This angle is where the first tick mark is displayed.

◆ setDirection()

void IlvCircularScale::setDirection ( IlBoolean in )

Sets the tick mark direction.

Parameters

in	The new tick mark direction.

◆ setRange()

void IlvCircularScale::setRange ( IlFloat range )

Sets the angle range of this scale.

Parameters

range The new angle range of this scale in degrees. This value can be negative for a clockwise scale.

◆ setStart()

void IlvCircularScale::setStart ( IlFloat start )

Sets the start angle of this scale.

Parameters

start The new start angle in degrees.

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ IlvCircularScale() [1/2]

◆ IlvCircularScale() [2/2]

Member Function Documentation

◆ applyTransform()

◆ boundingBox()

◆ contains()

◆ draw()

◆ getDirection()

◆ getRange()

◆ getStart()

◆ setDirection()

◆ setRange()

◆ setStart()