IlvSlider Class Reference

Gadget class. More...

#include <ilviews/gadgets/slider.h>

Inheritance diagram for IlvSlider:

Public Member Functions
	IlvSlider (IlvDisplay *display, const IlvRect &rect, IlvOrientation orientation=IlvLeft, IlUShort thickness=IlvDefaultGadgetThickness, IlvPalette *palette=0)
	Constructor. More...
	IlvSlider (IlvDisplay *display, const IlvPoint &p, IlvDim size, IlvOrientation orientation=IlvLeft, IlUShort thickness=IlvDefaultGadgetThickness, IlvPalette *palette=0)
	Constructor. More...
IlInt	getMax () const
	Returns the maximum value of the slider. More...
IlInt	getMin () const
	Returns the minimum value of the slider. More...
IlvOrientation	getOrientation () const
	Returns the slider orientation. More...
IlInt	getPageIncrement () const
	Returns the page increment value of the slider. More...
IlvDim	getSliderSize () const
	Returns the slider size. More...
IlvOrientation	getThumbOrientation () const
	Returns the orientation of the slider thumb. More...
IlInt	getValue () const
	Returns the current value of the slider. More...
void	getValues (IlInt &min, IlInt &max, IlInt &value, IlvDim &sSize) const
	Returns all the parameters of the slider. More...
IlInt	positionToValue (const IlvPoint &point, const IlvTransformer *t=0) const
	Returns the value stored in this object when the slider is located at the specified point. More...
void	setOrientation (IlvOrientation p)
	Sets the slider orientation. More...
void	setPageIncrement (IlInt value)
	Sets the page increment value of the slider. More...
void	setThumbOrientation (IlvOrientation orientation)
	Sets the orientation of the slider thumb. More...
void	setValue (IlInt value, IlBoolean redraw=IlFalse)
	Sets the slider value. More...
void	setValues (IlInt min, IlInt max, IlInt value, IlvDim size)
	Sets the minimum, maximum, and current values of the slider. More...
void	setValues (IlInt min, IlInt max, IlInt value)
	Sets the minimum, maximum, and current values for the slider. More...
virtual void	valueChanged ()
	Is called whenever the user changes the value of the slider. More...

Friends
class	IlvDefaultSliderLFHandler

Detailed Description

Gadget class.

Library: ilvgadgt

The IlvSlider class displays a rectangle containing a slider box that indicates a value.

Sliders

The slider box can be moved by dragging it along the slider area, therefore changing the current slider value.

Constructor & Destructor Documentation

IlvSlider::IlvSlider	(	IlvDisplay *	display,
		const IlvRect &	rect,
		IlvOrientation	orientation = IlvLeft,
		IlUShort	thickness = IlvDefaultGadgetThickness,
		IlvPalette *	palette = 0
	)

Constructor.

Initializes a new instance of the IlvSlider class. The default minimum value is set to 0. The default maximum value is set to 100. The default current value is set to 50, and the default slider size is set to 10.

Parameters

display	The connection to the display.
rect	The size and position of the slider.
orientation	The orientation of the slider. Valid values are: IlvLeft, IlvRight, IlvTop, and IlvBottom.
thickness	The thickness of the slider.
palette	The palette used to draw the slider. Note: The slider cursor (or thumb) size and the orientation impact the way it is displayed. If the orientation is vertical (that is IlvLeft or IlvRight) and the width of the rectangle is too small, the thumb will not be visible. Similarily, if the orientation is horizontal (that is IlvTop or IlvBottom) and the height of the rectangle is too small, the thumb will not be visible.

IlvSlider::IlvSlider	(	IlvDisplay *	display,
		const IlvPoint &	p,
		IlvDim	size,
		IlvOrientation	orientation = IlvLeft,
		IlUShort	thickness = IlvDefaultGadgetThickness,
		IlvPalette *	palette = 0
	)

Constructor.

Initializes a new instance of the IlvSlider class. The default minimum value is set to 0. The default maximum value is set to 100. The default current value is set to 50, and the default slider size is set to 10.

Parameters

display	The connection to the display.
point	The position of the slider.
size	The size of the slider.
orientation	The orientation of the slider. Valid values are: IlvLeft, IlvRight, IlvTop, and IlvBottom.
thickness	The thickness of the slider.
palette	The palette used to draw the slider.

Member Function Documentation

IlInt IlvSlider::getMax

(

)

const

Returns the maximum value of the slider.

Returns

The maximum value of the slider.

See Also

setValues, getMin

IlInt IlvSlider::getMin

(

)

const

Returns the minimum value of the slider.

Returns

The minimum value of the slider.

See Also

setValues, getMax

IlvOrientation IlvSlider::getOrientation

(

)

const

Returns the slider orientation.

Returns

The slider orientation.

IlInt IlvSlider::getPageIncrement

(

)

const

Returns the page increment value of the slider.

Returns

The page increment value of the slider.

See Also

setPageIncrement

IlvDim IlvSlider::getSliderSize

(

)

const

Returns the slider size.

Returns

The slider size.

See Also

setValues

IlvOrientation IlvSlider::getThumbOrientation

(

)

const

Returns the orientation of the slider thumb.

Returns

The orientation of the slider thumb.

See Also

IlvSlider::setThumbOrientation

IlInt IlvSlider::getValue

(

)

const

Returns the current value of the slider.

Returns

The current slider value.

See Also

setValue

void IlvSlider::getValues	(	IlInt &	min,
		IlInt &	max,
		IlInt &	value,
		IlvDim &	sSize
	)		const

Returns all the parameters of the slider.

Returns

All the parameters of this slider.

See Also

setValues

IlInt IlvSlider::positionToValue	(	const IlvPoint &	point,
		const IlvTransformer *	t = 0
	)		const

Returns the value stored in this object when the slider is located at the specified point.

Parameters

point	The point where the slider is located.
t	The transformer applied to this object.

Returns

The value stored in this object when the slider is located at point and drawn with the transformer t.

void IlvSlider::setOrientation

(

IlvOrientation

p

)

Sets the slider orientation.

Parameters

orientation

The new slider orientation. Valid values are: IlvTop (the slider is oriented vertically with its minimum value at the top), IlvBottom (the slider is oriented vertically with its minimum value at the bottom), IlvLeft (the slider is oriented horizontally with its minimum value on the left), IlvRight (the slider is oriented horizontally with its minimum value on the right). IlvVertical is equivalent to IlvTop and IlvHorizontal to IlvLeft.

void IlvSlider::setPageIncrement

(

IlInt

value

)

Sets the page increment value of the slider.

The page increment value is the value added to the slider value when the user presses the PageUp key or clicks outside the slider.

Parameters

value

The new page increment value.

See Also

getPageIncrement

void IlvSlider::setThumbOrientation

(

IlvOrientation

orientation

)

Sets the orientation of the slider thumb.

This value is used to compute the thumb that is drawn on the slider track. This value is only used in the Microsoft Windows 95 or ViewsX look-and-feel.

Parameters

direction

The new thumb orientation. The valid values are: IlvTop, IlvBottom, or both, for an horizontal slider, and IlvLeft, IlvRight, or both, for a vertical slider.

void IlvSlider::setValue	(	IlInt	value,
		IlBoolean	redraw = IlFalse
	)

Sets the slider value.

Parameters

value	The new slider value.
redraw	A Boolean value specifying whether the slider should be redrawn.

See Also

getValue

void IlvSlider::setValues	(	IlInt	min,
		IlInt	max,
		IlInt	value,
		IlvDim	size
	)

Sets the minimum, maximum, and current values of the slider.

Parameters

min	The minimum slider value.
max	The maximum slider value.
value	The current slider value.
size	The slider size.

See Also

getValues

void IlvSlider::setValues	(	IlInt	min,
		IlInt	max,
		IlInt	value
	)

Sets the minimum, maximum, and current values for the slider.

Parameters

min	The minimum slider value.
max	The maximum slider value.
value	The current slider value.

See Also

getValues

virtual void IlvSlider::valueChanged ( )

virtual

Is called whenever the user changes the value of the slider.

The default implementation calls the Main callback of the slider.