IlvRectangularScale Class Reference

Graphic class. More...

#include <ilviews/graphics/scale.h>

Inheritance diagram for IlvRectangularScale:

Public Member Functions
	IlvRectangularScale (IlvDisplay *display, const IlvPoint &orig, IlvDim size, const char *format, IlFloat min, IlFloat max, IlvDirection direction=IlvVertical, IlvPosition position=IlvLeft, IlUShort steps=0, IlUShort substeps=0, IlUShort stepsize=10, IlUShort substepsize=5, IlvPalette *palette=0)
	Constructor. More...
	IlvRectangularScale (IlvDisplay *display, const IlvPoint &orig, IlvDim size, char *labels[], IlvDirection direction=IlvVertical, IlvPosition position=IlvLeft, IlUShort steps=2, IlUShort substeps=0, 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...
IlBoolean	areLabelsCentered () const
	Gets the 'centered labels' flag. More...
virtual void	boundingBox (IlvRect &, const IlvTransformer *t=0) const
	Retrieves the bounding box of the graphic object. More...
void	centerLabels (IlBoolean val)
	Sets the 'centered labels' flag. More...
IlBoolean	doesDrawOverlappingLabels () const
	Gets the 'draw overlapping labels' flag. More...
virtual void	draw (IlvPort *, const IlvTransformer *t=0, const IlvRegion *clip=0) const
	Draws the graphic object. More...
virtual void	drawBaseLine (IlvPort *dst, const IlvTransformer *t=0, const IlvRegion *clip=0) const
	Draws the base line. More...
virtual void	drawLabel (IlvPort *dst, IlUShort idx, const IlvPoint &orig, const IlvFloatPoint &offset, const IlvPoint &tickoffset, const IlvTransformer *t=0, const IlvRegion *clip=0) const
	Draws a label. More...
virtual void	drawLabels (IlvPort *dst, const IlvTransformer *t=0, const IlvRegion *clip=0) const
	Draws all labels. More...
void	drawOverlappingLabels (IlBoolean val)
	Sets the 'draw overlapping labels' flag. More...
virtual void	drawTick (IlvPort *dst, IlUShort idx, const IlvPoint &orig, const IlvFloatPoint &offset, const IlvFloatPoint &suboffset, const IlvPoint &tickoffset, const IlvPoint &subtickoffset, const IlvTransformer *t=0, const IlvRegion *clip=0) const
	Draws a tick mark. More...
virtual void	drawTicks (IlvPort *dst, const IlvTransformer *t=0, const IlvRegion *clip=0) const
	Draws all tick marks. More...
IlvDirection	getDirection () const
	Gets the direction of the scale. More...
virtual IlUShort	getNumberOfSkippedSteps (const IlvPoint &orig, IlvDim size, IlUShort steps, const IlvFloatPoint &offset, const IlvPoint &tickoffset, const IlvTransformer *t=0) const
	Gets the number of skipped steps. More...
void	getOrigin (IlvPoint &p) const
	Gets the origin of the scale. More...
IlvPosition	getPosition () const
	Gets the position of the scale. More...
IlvDim	getSize () const
	Gets the size of the scale. More...
IlBoolean	hasVerticalLabels () const
	Gets the 'vertical labels' flag. More...
IlBoolean	isStepSizeFixed () const
	Gets the 'fixed step size' flag. More...
virtual void	labelBBox (IlvRect &rect, IlUShort idx, const IlvPoint &orig, const IlvFloatPoint &offset, const IlvPoint &tickoffset, const IlvTransformer *t=0) const
	Gets a label's bounding box. More...
virtual void	labelsBBox (IlvRect &rect, const IlvFloatPoint &offset, const IlvPoint &tickoffset, const IlvTransformer *t=0) const
	Gets the bounding box of all labels. More...
void	setDirection (IlvDirection direction)
	Sets the direction of the scale. More...
void	setOrigin (const IlvPoint &)
	Sets the origin of the scale. More...
void	setPosition (IlvPosition position)
	Sets the position of the scale. More...
void	setSize (IlvDim size)
	Sets the size of the scale. More...
void	setStepSizeFixed (IlBoolean v)
	Sets the 'fixed step size' flag. More...
virtual void	ticksBBox (IlvRect &rect, const IlvFloatPoint &offset, const IlvPoint &tickoffset, const IlvTransformer *t=0) const
	Gets the bounding box of all ticks. More...
void	useVerticalLabels (IlBoolean v)
	Sets the 'vertical labels' flag. More...
Public Member Functions inherited from IlvScale
	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...
	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...
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 to the given palette value. 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)
	Constructor. More...
virtual	~IlvSimpleGraphic ()
	Destructor. More...
virtual void	applyResources (const char *storageName, const char *storageClassName, const char *objectName, const char *objectClassName, IlvDisplay *display=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 temp=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 alpha)
	Sets the alpha value of the object. More...
virtual void	setAntialiasingMode (IlvAntialiasingMode mode)
	Sets the anti-aliasing mode of the object. More...
virtual void	setArcMode (IlvArcMode am)
	Sets the arc mode of the object. More...
virtual void	setBackground (IlvColor *c)
	Sets the background color of the object. More...
virtual void	setColorPattern (IlvColorPattern *b)
	Sets the color pattern of the object. More...
virtual void	setFillRule (IlvFillRule fr)
	Sets the fill rule of the object. More...
virtual void	setFillStyle (IlvFillStyle f)
	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 *c)
	Sets the foreground color of the object. More...
virtual void	setGradientPattern (IlvGradientPattern *g)
	Sets the gradient pattern of the object. More...
virtual void	setHolder (IlvGraphicHolder *holder)
	Sets the object's holder. More...
virtual void	setLineStyle (IlvLineStyle *style)
	Sets the line style of the object. More...
virtual void	setLineWidth (IlUShort width)
	Sets the line width of the object. More...
virtual void	setMode (IlvDrawMode m)
	Sets the drawing mode of the object temporarily. More...
virtual void	setOverwrite (IlBoolean o)
	Sets an overwrite mode that modifies how the drawing member functions operate. More...
virtual void	setPattern (IlvPattern *p)
	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 callback, 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, 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	applyReferences (IlvApplyObject function, IlAny arg)
	Applies a function to objects that are referenced by another object. More...
virtual IlBoolean	applyValue (const IlvValue &val)
	Apply an accessor. More...
virtual void	callCallbacks (const IlSymbol *callbackType)
	Calls every callback of a given type. More...
virtual IlBoolean	changeValue (const IlvValue &val)
	Changes the value of an accessor. More...
virtual IlBoolean	changeValues (const IlvValue *values, IlUShort count)
	Changes several accessor values simultaneously. 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...
virtual IlBoolean	contains (const IlvPoint &p, const IlvPoint &tp, const IlvTransformer *t=0) const
	Checks whether a point is in the object. 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 **accessors, const IlvValueTypeClass *const **types, IlUInt &count) 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 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 a specified graphic 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 or not. 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 (ILVSTDPREF ostream &out, int level=0) const
	Prints for debugging purposes. More...
virtual IlvValue &	queryValue (IlvValue &val) const
	Retrieves the value of an accessor. More...
virtual void	queryValues (IlvValue *values, IlUShort count) const
	Retrieves multiple accessor values simultaneously. 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 callback, 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 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...

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 horizontal and vertical scales like those shown in the following figure:

- IlvRectangularScale -

See Also

IlvCircularScale, IlvGauge.

Constructor & Destructor Documentation

IlvRectangularScale::IlvRectangularScale	(	IlvDisplay *	display,
		const IlvPoint &	orig,
		IlvDim	size,
		const char *	format,
		IlFloat	min,
		IlFloat	max,
		IlvDirection	direction = IlvVertical,
		IlvPosition	position = IlvLeft,
		IlUShort	steps = 0,
		IlUShort	substeps = 0,
		IlUShort	stepsize = 10,
		IlUShort	substepsize = 5,
		IlvPalette *	palette = 0
	)

Constructor.

The point orig specifies the origin of the scale. Its position varies depending on the direction and position parameters. The origin of the scale should not be confused with the origin of the rectangle that contains it, which is located at the upper-left corner. The parameter size specifies the dimension of the scale in its main axis (width for horizontal scale and height for a vertical scale). The direction of the scale is indicated by direction: valid values are IlvVertical (bottom to top) and IlvHorizontal (left to right). The position of the scale is specified by position. Valid values depend on direction: IlvLeft and IlvRight for a vertical scale, IlvTop and IlvBottom for a horizontal scale.

Parameters

display	The display where this object is created.
orig	The origin of the scale.
size	The dimension of the scale's main axis.
format	The printf format of the step labels.
min	The minimum value of the scale.
max	The maximum value of the scale.
direction	The direction of the scale.
position	The position of the scale.
steps	The number of major ticks to be drawn, which can be 0 for no scales.
substeps	The number of minor ticks displayed between major ones.
stepsize	The major tick mark size.
substepsize	The minor tick mark size.
palette	The palette associated with this object.

IlvRectangularScale::IlvRectangularScale	(	IlvDisplay *	display,
		const IlvPoint &	orig,
		IlvDim	size,
		char *	labels[],
		IlvDirection	direction = IlvVertical,
		IlvPosition	position = IlvLeft,
		IlUShort	steps = 2,
		IlUShort	substeps = 0,
		IlUShort	stepsize = 10,
		IlUShort	substepsize = 5,
		IlvPalette *	palette = 0
	)

Constructor.

The point orig specifies the origin of the scale. Its position varies depending on the direction and position parameters. The origin of the scale should not be confused with the origin of the rectangle that contains it, which is located at the upper-left corner. The parameter size specifies the dimension of the scale in its main axis (width for horizontal scale and height for a vertical scale). The direction of the scale is indicated by direction: valid values are IlvVertical (bottom to top) and IlvHorizontal (left to right). The position of the scale is specified by position. Valid values depend on direction: IlvLeft and IlvRight for a vertical scale, IlvTop and IlvBottom for a horizontal scale.

Parameters

display	The display where this object is created.
orig	The origin of the scale.
size	The dimension of the scale's main axis.
labels[]	The array of text strings.
direction	The direction of the scale.
position	The position of the scale.
steps	The number of major ticks to be drawn, which can be 0 for no scales.
substeps	The number of minor ticks displayed between major ones.
stepsize	The major tick mark size.
substepsize	The minor tick mark size.
palette	The palette associated with this object.

Member Function Documentation

virtual void IlvRectangularScale::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.

Warning

[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.

IlBoolean IlvRectangularScale::areLabelsCentered

(

)

const

Gets the 'centered labels' flag.

Returns

IlTrue if the scale draws its labels between the markers, or IlFalse if it draws each label with its corresponding marker.

virtual void IlvRectangularScale::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. When there is no transformation, t is set to 0.

Parameters

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

Implements IlvScale.

void IlvRectangularScale::centerLabels

(

IlBoolean

val

)

Sets the 'centered labels' flag.

Sets the centered labels flag to val.

Parameters

val	A Boolean value to set the flag.

IlBoolean IlvRectangularScale::doesDrawOverlappingLabels

(

)

const

Gets the 'draw overlapping labels' flag.

Returns

IlTrue if the scale allows labels to overlap, and IlFalse otherwise.

virtual void IlvRectangularScale::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 which might have the value 0. The clip parameter, which can also be 0, represents the clipping region relative to the transformed object.

Parameters

dst	The destination port.
t	The transformer value. If 0, no transformation is performed.
clip	The clipping region, or 0 if none.

Implements IlvScale.

virtual void IlvRectangularScale::drawBaseLine ( IlvPort *  dst, const IlvTransformer *  t = 0, const IlvRegion *  clip = 0  ) const

virtual

Draws the base line.

Draws a line from the origin to the last scale marker.

Parameters

dst	The drawing port.
t	A transformation.
clip	A clipping region.

virtual void IlvRectangularScale::drawLabel ( IlvPort *  dst, IlUShort  idx, const IlvPoint &  orig, const IlvFloatPoint &  offset, const IlvPoint &  tickoffset, const IlvTransformer *  t = 0, const IlvRegion *  clip = 0  ) const

virtual

Draws a label.

Draws a scale label at the position indicated by index, in the dst port. origin indicates the location of the minimum value representation on the scale.
The offset values allow the dimensions to be handled, without considering whether the values are positive or negative (this is handled elsewhere). offset is the offset of the origin of two major ticks. tickoffset is the absolute offset of the extremity of a tick to its origin.

Parameters

dst	The drawing port.
idx	The label position to draw.
orig	The location of the minimum value representation on the scale.
offset	The offset of the origin of two major ticks.
tickoffset	The absolute tick offset to the origin.
t	A transformation.
clip	A clipping region.

virtual void IlvRectangularScale::drawLabels ( IlvPort *  dst, const IlvTransformer *  t = 0, const IlvRegion *  clip = 0  ) const

virtual

Draws all labels.

Draws the scale labels, computing the two different offsets (see drawLabel), and calls the drawLabel member function for each label in the scale.

Parameters

dst	The drawing port.
t	A transformation.
clip	A clipping region.

void IlvRectangularScale::drawOverlappingLabels

(

IlBoolean

val

)

Sets the 'draw overlapping labels' flag.

Allows (if val is IlTrue) or disallows labels from overlapping.

Parameters

val	A Boolean value to set the flag.

virtual void IlvRectangularScale::drawTick ( IlvPort *  dst, IlUShort  idx, const IlvPoint &  orig, const IlvFloatPoint &  offset, const IlvFloatPoint &  suboffset, const IlvPoint &  tickoffset, const IlvPoint &  subtickoffset, const IlvTransformer *  t = 0, const IlvRegion *  clip = 0  ) const

virtual

Draws a tick mark.

Draws a scale marker at the position indicated by index, in the dst port. origin indicates the location of the minimum value representation on the scale.
The offset values allow the dimensions to be handled, without considering whether the values are positive or negative (this is handled elsewhere). offset is the offset between the origins of two major ticks, suboffset is the offset between the origins of two minor ticks, tickoffset is the offset from the major tick line origin to its extremity, and subtickoffset is the offset from the origin of the minor tick line to its extremity.

Parameters

dst	The drawing port.
idx	The label position to draw.
orig	The location of the minimum value representation on the scale.
offset	The offset of the origin of two major ticks.
suboffset	The offset of the origin of two minor ticks.
tickoffset	The absolute major tick offset to the origin.
subtickoffset	The absolute minor tick offset to the origin.
t	A transformation.
clip	A clipping region.

virtual void IlvRectangularScale::drawTicks ( IlvPort *  dst, const IlvTransformer *  t = 0, const IlvRegion *  clip = 0  ) const

virtual

Draws all tick marks.

Draws the scale markers, computing the four different offsets (see drawTick), and calls the drawTick member function for each tick in the scale.

Parameters

dst	The drawing port.
t	A transformation.
clip	A clipping region.

IlvDirection IlvRectangularScale::getDirection

(

)

const

Gets the direction of the scale.

Returns

The direction of the scale.

virtual IlUShort IlvRectangularScale::getNumberOfSkippedSteps ( const IlvPoint &  orig, IlvDim  size, IlUShort  steps, const IlvFloatPoint &  offset, const IlvPoint &  tickoffset, const IlvTransformer *  t = 0  ) const

virtual

Gets the number of skipped steps.

Returns

The number of steps to skip when drawing the scale labels and tick marks. The return value is 1 if the draw overlapping labels flag is set to IlTrue. Overload this function if you want to control the display of scale labels on the screen (Show only odd or even numbers.)

void IlvRectangularScale::getOrigin

(

IlvPoint &

p

)

const

Gets the origin of the scale.

Returns

The origin parameter indicating the origin of the scale.

IlvPosition IlvRectangularScale::getPosition

(

)

const

Gets the position of the scale.

Returns

The position of the scale relative to the object.

IlvDim IlvRectangularScale::getSize

(

)

const

Gets the size of the scale.

Returns

The size (the width or the height) of the scale. The size is the distance from the minimum to maximum tick marks on the scale.

IlBoolean IlvRectangularScale::hasVerticalLabels

(

)

const

Gets the 'vertical labels' flag.

Returns

IlTrue if the scale draws its labels in a vertical direction, or IlFalse if it draws them in a horizontal direction.

IlBoolean IlvRectangularScale::isStepSizeFixed

(

)

const

Gets the 'fixed step size' flag.

Returns

IlTrue if the scale has a fixed step size (i.e., distance between two markers), or IlFalse if this distance varies to make the scale fit its size.

virtual void IlvRectangularScale::labelBBox ( IlvRect &  rect, IlUShort  idx, const IlvPoint &  orig, const IlvFloatPoint &  offset, const IlvPoint &  tickoffset, const IlvTransformer *  t = 0  ) const

virtual

Gets a label's bounding box.

Uses the rect parameter to return the bounding box of the label of the scale at the position indicated by idx.

Parameters

idx	The index position of the label.

Returns

In rect the bounding box of the label.

virtual void IlvRectangularScale::labelsBBox ( IlvRect &  rect, const IlvFloatPoint &  offset, const IlvPoint &  tickoffset, const IlvTransformer *  t = 0  ) const

virtual

Gets the bounding box of all labels.

Uses the rect parameter to return the bounding box containing all the scale labels.

Returns

In rect the bounding box containing all labels.

void IlvRectangularScale::setDirection

(

IlvDirection

direction

)

Sets the direction of the scale.

Sets the direction of the scale. The direction parameter can be set to any of six values. IlvBottom, IlvTop, IlvLeft and IlvRight indicate where the minimum value of the scale is positioned.
IlvHorizontal indicates that the scale goes from left to right (equivalent to IlvLeft). IlvVertical indicates that the scale goes from bottom to top (equivalent to IlvBottom).

Parameters

direction

The direction of the scale.

void IlvRectangularScale::setOrigin

(

const IlvPoint &

)

Sets the origin of the scale.

Sets the origin of the scale (the location of the minimum value representation) to the value of the origin parameter.

Parameters

origin

The origin of the scale.

void IlvRectangularScale::setPosition

(

IlvPosition

position

)

Sets the position of the scale.

Sets the position of the scale to the value specified in the position parameter. If the scale is horizontal, possible values for position are IlvTop and IlvBottom. If the scale is vertical, then the possible values are IlvLeft and IlvRight. The values indicate where the scale is drawn in relation to its bounding rectangle.

Parameters

position

The position of the scale.

void IlvRectangularScale::setSize

(

IlvDim

size

)

Sets the size of the scale.

Sets the size of the scale (the width or the height) of the scale to the value of the size parameter. The size is the distance from the minimum to maximum tick marks on the scale.

Parameters

size	The dimension of the scale's main axis.

void IlvRectangularScale::setStepSizeFixed

(

IlBoolean

v

)

Sets the 'fixed step size' flag.

Sets the fixed step size flag to flag.

Parameters

flag	A Boolean value to set the flag.

virtual void IlvRectangularScale::ticksBBox ( IlvRect &  rect, const IlvFloatPoint &  offset, const IlvPoint &  tickoffset, const IlvTransformer *  t = 0  ) const

virtual

Gets the bounding box of all ticks.

Uses the rect parameter to return the bounding box containing all the scale markers.

Returns

In rect the bounding box containing all ticks.

void IlvRectangularScale::useVerticalLabels

(

IlBoolean

v

)

Sets the 'vertical labels' flag.

Sets the vertical labels flag to flag.

Parameters

flag	A Boolean value to set the flag.