A horizontal or vertical slider control. More...

#include <Wt/WSlider>

Inheritance diagram for Wt::WSlider:

[legend]

Public Types
Public Types inherited from Wt::WObject
typedef void(WObject::*	Method) ()
	Typedef for a WObject method without arguments.

Public Member Functions
	WSlider (WContainerWidget *parent=0)
	Creates a default horizontal slider. More...

	WSlider (Orientation orientation, WContainerWidget *parent=0)
	Creates a default slider of the given orientation. More...

	~WSlider ()
	Destructor.

void	setNativeControl (bool nativeControl)
	Configures whether a native HTML5 control should be used. More...

bool	nativeControl () const
	Returns whether a native HTML5 control is used. More...

void	setOrientation (Wt::Orientation orientation)
	Sets the slider orientation. More...

Orientation	orientation () const
	Returns the slider orientation. More...

void	setTickInterval (int tickInterval)
	Sets the tick interval. More...

int	tickInterval () const
	Returns the tick interval. More...

void	setTickPosition (WFlags< TickPosition > tickPosition)
	Sets the tick position. More...

WFlags< TickPosition >	tickPosition () const
	Returns the tick position. More...

virtual void	setValue (int value)
	Sets the slider value. More...

int	value () const
	Returns the current slider value. More...

void	setMaximum (int maximum)
	Sets the maximum value. More...

int	maximum () const
	Returns the maximum value. More...

void	setMinimum (int minimum)
	Sets the minimum value. More...

int	minimum () const
	Returns the minimum value. More...

void	setRange (int minimum, int maximum)
	Sets the value range. More...

Signal< int > &	valueChanged ()
	Signal emitted when the user has changed the value of the slider. More...

JSignal< int > &	sliderMoved ()
	Signal emitted while the user drags the slider. More...

void	setHandleWidth (int width)
	Sets the slider handle width. More...

int	handleWidth () const
	Returns the handle width. More...

virtual void	setDisabled (bool disabled)
	Sets whether the widget is disabled. More...

virtual void	resize (const WLength &width, const WLength &height)
	Resizes the widget. More...

virtual WString	valueText () const
	Returns the current value. More...

virtual void	setValueText (const WString &value)
	Sets the value text. More...

virtual void	enableAjax ()
	Progresses to an Ajax-enabled widget. More...

Public Member Functions inherited from Wt::WFormWidget
	WFormWidget (WContainerWidget *parent=0)
	Creates a WFormWidget with an optional parent.

	~WFormWidget ()
	Destructor. More...

WLabel *	label () const
	Returns the label associated with this widget. More...

virtual void	setHidden (bool hidden, const WAnimation &animation=WAnimation())
	Sets the hidden state of this widget. More...

void	setValidator (WValidator *validator)
	Sets a validator for this field. More...

virtual WValidator *	validator () const
	Returns the validator.

virtual WValidator::State	validate ()
	Validates the field. More...

void	setEnabled (bool enabled)
	Sets whether the widget is enabled. More...

virtual void	setReadOnly (bool readOnly)
	Sets the element read-only. More...

bool	isReadOnly () const
	Returns whether the form element is read-only. More...

void	setEmptyText (const WString &emptyText)
	Sets the placeholder text (deprecated). More...

const WString &	emptyText () const
	Returns the placeholder text (deprecated). More...

virtual void	setPlaceholderText (const WString &placeholder)
	Sets the placeholder text. More...

const WString &	placeholderText () const
	Returns the placeholder text. More...

EventSignal &	changed ()
	Signal emitted when the value was changed. More...

EventSignal &	selected ()
	Signal emitted when ??

Signal< WValidator::Result > &	validated ()
	Signal emitted when the widget is being validated. More...

virtual void	refresh ()
	Refresh the widget. More...

virtual void	setToolTip (const WString &text, TextFormat textFormat=PlainText)
	Sets a tooltip. More...

virtual bool	canReceiveFocus () const
	Returns whether the widget can receive focus. More...

virtual int	tabIndex () const
	Returns the tab index. More...

Public Member Functions inherited from Wt::WInteractWidget
	WInteractWidget (WContainerWidget *parent=0)
	Create an InteractWidget with optional parent.

EventSignal< WKeyEvent > &	keyWentDown ()
	Event signal emitted when a keyboard key is pushed down. More...

EventSignal< WKeyEvent > &	keyPressed ()
	Event signal emitted when a "character" was entered. More...

EventSignal< WKeyEvent > &	keyWentUp ()
	Event signal emitted when a keyboard key is released. More...

EventSignal &	enterPressed ()
	Event signal emitted when enter was pressed. More...

EventSignal &	escapePressed ()
	Event signal emitted when escape was pressed. More...

EventSignal< WMouseEvent > &	clicked ()
	Event signal emitted when a mouse key was clicked on this widget. More...

EventSignal< WMouseEvent > &	doubleClicked ()
	Event signal emitted when a mouse key was double clicked on this widget. More...

EventSignal< WMouseEvent > &	mouseWentDown ()
	Event signal emitted when a mouse key was pushed down on this widget. More...

EventSignal< WMouseEvent > &	mouseWentUp ()
	Event signal emitted when a mouse key was released on this widget. More...

EventSignal< WMouseEvent > &	mouseWentOut ()
	Event signal emitted when the mouse went out of this widget. More...

EventSignal< WMouseEvent > &	mouseWentOver ()
	Event signal emitted when the mouse entered this widget. More...

EventSignal< WMouseEvent > &	mouseMoved ()
	Event signal emitted when the mouse moved over this widget. More...

EventSignal< WMouseEvent > &	mouseDragged ()
	Event signal emitted when the mouse is dragged over this widget. More...

EventSignal< WMouseEvent > &	mouseWheel ()
	Event signal emitted when the mouse scroll wheel was used. More...

EventSignal< WTouchEvent > &	touchStarted ()
	Event signal emitted when a finger is placed on the screen. More...

EventSignal< WTouchEvent > &	touchEnded ()
	Event signal emitted when a finger is removed from the screen. More...

EventSignal< WTouchEvent > &	touchMoved ()
	Event signal emitted when a finger, which is already placed on the screen, is moved across the screen. More...

EventSignal< WGestureEvent > &	gestureStarted ()
	Event signal emitted when a gesture is started. More...

EventSignal< WGestureEvent > &	gestureChanged ()
	Event signal emitted when a gesture is changed. More...

EventSignal< WGestureEvent > &	gestureEnded ()
	Event signal emitted when a gesture is ended. More...

void	setDraggable (const std::string &mimeType, WWidget dragWidget=0, bool isDragWidgetOnly=false, WObject sourceWidget=0)
	Configure dragging for drag and drop. More...

void	unsetDraggable ()
	Disable drag & drop for this widget. More...

void	setMouseOverDelay (int delay)
	Sets a delay for the mouse over event. More...

int	mouseOverDelay () const
	Returns the mouse over signal delay. More...

virtual void	setPopup (bool popup)
	Lets the widget overlay over other sibling widgets. More...

virtual void	load ()
	Loads content just before the widget is used. More...

virtual bool	isEnabled () const
	Returns whether the widget is enabled. More...

Public Member Functions inherited from Wt::WWebWidget
	WWebWidget (WContainerWidget *parent=0)
	Construct a WebWidget with a given parent. More...

virtual void	setPositionScheme (PositionScheme scheme)
	Sets the CSS position scheme. More...

virtual PositionScheme	positionScheme () const
	Returns the CSS position scheme. More...

virtual void	setOffsets (const WLength &offset, WFlags< Side > sides=All)
	Sets CSS offsets for a non-statically positioned widget. More...

virtual WLength	offset (Side s) const
	Returns a CSS offset. More...

virtual WLength	width () const
	Returns the width. More...

virtual WLength	height () const
	Returns the height. More...

virtual void	setMinimumSize (const WLength &width, const WLength &height)
	Sets a minimum size. More...

virtual WLength	minimumWidth () const
	Returns the minimum width. More...

virtual WLength	minimumHeight () const
	Returns the minimum height. More...

virtual void	setMaximumSize (const WLength &width, const WLength &height)
	Sets a maximum size. More...

virtual WLength	maximumWidth () const
	Returns the maximum width. More...

virtual WLength	maximumHeight () const
	Returns the maximum height. More...

virtual void	setLineHeight (const WLength &height)
	Sets the CSS line height for contained text.

virtual WLength	lineHeight () const
	Returns the CSS line height for contained text. More...

virtual void	setFloatSide (Side s)
	Specifies a CSS float side. More...

virtual Side	floatSide () const
	Returns the CSS float side. More...

virtual void	setClearSides (WFlags< Side > sides)
	Sets the sides that should be cleared of floats. More...

virtual WFlags< Side >	clearSides () const
	Returns the sides that should remain empty. More...

virtual void	setMargin (const WLength &margin, WFlags< Side > sides=All)
	Sets CSS margins around the widget. More...

virtual WLength	margin (Side side) const
	Returns a CSS margin set. More...

virtual void	setHiddenKeepsGeometry (bool enabled)
	Sets whether the widget keeps its geometry when hidden. More...

virtual bool	hiddenKeepsGeometry () const
	Returns whether the widget keeps its geometry when hidden. More...

virtual bool	isHidden () const
	Returns whether the widget is set hidden. More...

virtual bool	isVisible () const
	Returns whether the widget is visible. More...

virtual bool	isDisabled () const
	Returns whether the widget is set disabled. More...

virtual bool	isPopup () const
	Returns whether the widget is overlayed. More...

virtual void	setInline (bool isInline)
	Sets whether the widget is displayed inline or as a block. More...

virtual bool	isInline () const
	Returns whether the widget is displayed inline or as block. More...

virtual void	setDecorationStyle (const WCssDecorationStyle &style)
	Sets a CSS decoration style. More...

virtual WCssDecorationStyle &	decorationStyle ()
	Returns the decoration style of this widget. More...

virtual void	setStyleClass (const WString &styleClass)
	Sets (one or more) CSS style classes. More...

virtual WString	styleClass () const
	Returns the CSS style class. More...

virtual void	addStyleClass (const WString &styleClass, bool force=false)
	Adds a CSS style class. More...

virtual void	removeStyleClass (const WString &styleClass, bool force=false)
	Removes a CSS style class. More...

virtual bool	hasStyleClass (const WString &styleClass) const
	Returns whether the widget has a style class.

virtual void	setVerticalAlignment (AlignmentFlag alignment, const WLength &length=WLength())
	Sets the vertical alignment. More...

virtual AlignmentFlag	verticalAlignment () const
	Returns the vertical alignment. More...

virtual WLength	verticalAlignmentLength () const
	Returns the fixed vertical alignment that was set. More...

virtual void	setDeferredToolTip (bool enable, TextFormat textFormat=PlainText)
	Enable deferred tooltip. More...

virtual WString	toolTip () const
	Returns the tooltip.

virtual void	setAttributeValue (const std::string &name, const WString &value)
	Sets an attribute value. More...

virtual WString	attributeValue (const std::string &name) const
	Returns an attribute value. More...

virtual void	setJavaScriptMember (const std::string &name, const std::string &value)
	Sets a JavaScript member. More...

virtual std::string	javaScriptMember (const std::string &name) const
	Returns the value of a JavaScript member. More...

virtual void	callJavaScriptMember (const std::string &name, const std::string &args)
	Calls a JavaScript member. More...

virtual bool	loaded () const
	Returns whether this widget has been loaded. More...

virtual void	setId (const std::string &id)
	Sets the CSS Id. More...

virtual WWidget *	find (const std::string &name)
	Finds a descendent widget by name. More...

virtual WWidget *	findById (const std::string &id)
	Finds a descendent widget by id.

virtual void	setSelectable (bool selectable)
	Sets as selectable. More...

virtual void	doJavaScript (const std::string &javascript)
	Executes the given JavaScript statements when the widget is rendered or updated. More...

virtual const std::string	id () const
	Returns the (unique) identifier for this object. More...

void	setLoadLaterWhenInvisible (bool)
	Change the way the widget is loaded when invisible. More...

std::string	htmlTagName () const
	returns the current html tag name More...

void	setHtmlTagName (const std::string &tag)
	set the custom HTML tag name More...

const std::vector< WWidget * > &	children () const
	Returns contained widgets. More...

Signal &	childrenChanged ()
	Signal emitted when children have been added or removed. More...

virtual void	setCanReceiveFocus (bool enabled)
	Sets whether the widget can receive focus. More...

virtual bool	setFirstFocus ()
	Set focus on the widget's first descendant. More...

virtual void	setFocus (bool focus)
	Sets focus. More...

virtual bool	hasFocus () const
	Returns whether the widget currently has the focus.

virtual void	setTabIndex (int index)
	Sets the tab index. More...

EventSignal &	blurred ()
	Signal emitted when the widget lost focus. More...

EventSignal &	focussed ()
	Signal emitted when the widget recieved focus. More...

virtual bool	scrollVisibilityEnabled () const WT_CXX11ONLY(finaloverride)
	Returns whether scroll visibility detection is enabled for this widget. More...

virtual void	setScrollVisibilityEnabled (bool enabled) WT_CXX11ONLY(finaloverride)
	Sets whether scroll visibility detection is enabled for this widget. More...

virtual int	scrollVisibilityMargin () const WT_CXX11ONLY(finaloverride)
	Returns the margin around the viewport within which the widget is considered visible. More...

virtual void	setScrollVisibilityMargin (int margin) WT_CXX11ONLY(finaloverride)
	Sets the margin around the viewport within which the widget is considered visible. More...

virtual Signal< bool > &	scrollVisibilityChanged () WT_CXX11ONLY(finaloverride)
	Signal triggered when the scroll visibility of this widget changes. More...

virtual bool	isScrollVisible () const WT_CXX11ONLY(finaloverride)
	Returns whether this widget is currently considered scroll visible. More...

virtual void	setThemeStyleEnabled (bool enabled)
	Sets whether theme styling for a widget is enabled or disabled. More...

virtual bool	isThemeStyleEnabled () const
	Returns whether this widget is currently styled by the chosen theme. More...

Public Member Functions inherited from Wt::WWidget
virtual	~WWidget ()
	Destructor. More...

WWidget *	parent () const
	Returns the parent widget. More...

virtual void	removeChild (WObject *child)
	Removes a child object. More...

void	setWidth (const WLength &width)
	Sets the width. More...

void	setHeight (const WLength &height)
	Sets the height. More...

virtual void	positionAt (const WWidget *widget, Orientation orientation=Vertical)
	Positions a widget next to another widget. More...

virtual void	toggleStyleClass (const WString &styleClass, bool add, bool force=false)
	Toggles a CSS style class.

std::string	jsRef () const
	Returns a JavaScript expression to the corresponding DOM node. More...

void	setFocus ()
	Sets focus. More...

virtual void	acceptDrops (const std::string &mimeType, const WString &hoverStyleClass=WString())
	Sets a mime type to be accepted for dropping. More...

virtual void	stopAcceptDrops (const std::string &mimeType)
	Indicates that a mime type is no longer accepted for dropping. More...

virtual void	setObjectName (const std::string &name)
	Sets an object name. More...

virtual void	htmlText (std::ostream &out)
	Streams the (X)HTML representation. More...

bool	isRendered () const
	Returns whether the widget is rendered. More...

void	hide ()
	Hides the widget. More...

void	animateHide (const WAnimation &animation)
	Hides the widget using an animation. More...

void	show ()
	Shows the widget. More...

void	animateShow (const WAnimation &animation)
	Shows the widget using an animation. More...

void	enable ()
	Enables the widget. More...

void	disable ()
	Disable thes widget. More...

bool	layoutSizeAware () const
	Returns whether the widget is layout size aware. More...

Public Member Functions inherited from Wt::WObject
	WObject (WObject *parent=0)
	Create a WObject with a given parent object. More...

virtual	~WObject ()
	Destructor. More...

virtual std::string	objectName () const
	Returns the object name. More...

void	resetLearnedSlots ()
	Resets learned stateless slot implementations. More...

template<class T >
void	resetLearnedSlot (void(T::*method)())
	Resets a learned stateless slot implementation. More...

template<class T >
WStatelessSlot *	implementStateless (void(T::*method)())
	Declares a slot to be stateless and learn client-side behaviour on first invocation. More...

template<class T >
WStatelessSlot *	implementStateless (void(T::method)(), void(T::undoMethod)())
	Declares a slot to be stateless and learn client-side behaviour in advance. More...

void	isNotStateless ()
	Marks the current function as not stateless. More...

template<class T >
WStatelessSlot *	implementJavaScript (void(T::*method)(), const std::string &jsCode)
	Provides a JavaScript implementation for a method. More...

void	addChild (WObject *child)
	Adds a child object. More...

const std::vector< WObject * > &	children () const
	Returns the children.

WObject *	parent () const
	Returns the parent object.

Static Public Attributes
static const Wt::WFlags< TickPosition >	NoTicks = 0
	Do not render ticks.

static const Wt::WFlags< TickPosition >	TicksBothSides = TicksAbove \| TicksBelow
	Render ticks on both sides.

Protected Member Functions
virtual void	paintTick (WPainter &painter, int value, int x, int y)
	Paints a slider ticks (for a non-native widget) More...

virtual WInteractWidget *	createHandle ()
	Creates the handle (for a non-native widget) More...

virtual void	layoutSizeChanged (int width, int height)
	Virtual method that indicates a size change. More...

virtual void	render (WFlags< RenderFlag > flags)
	Renders the widget. More...

Protected Member Functions inherited from Wt::WFormWidget
virtual void	propagateSetEnabled (bool enabled)
	Propagates that a widget was enabled or disabled through children. More...

Protected Member Functions inherited from Wt::WWebWidget
virtual WStatelessSlot *	getStateless (Method method)
	On-demand stateless slot implementation. More...

Protected Member Functions inherited from Wt::WWidget
void	setLayoutSizeAware (bool sizeAware)
	Sets the widget to be aware of its size set by a layout manager. More...

	WWidget (WContainerWidget *parent=0)
	Creates a widget. More...

virtual void	dropEvent (WDropEvent dropEvent)
	Handles a drop event. More...

virtual int	boxPadding (Orientation orientation) const
	Returns the widget's built-in padding. More...

virtual int	boxBorder (Orientation orientation) const
	Returns the widget's built-in border width. More...

void	scheduleRender (WFlags< RepaintFlag > flags=0)
	Schedules rerendering of the widget. More...

Additional Inherited Members
Static Public Member Functions inherited from Wt::WWebWidget
static WString	escapeText (const WString &text, bool newlinesToo=false)
	Escape HTML control characters in the text, to display literally (deprecated). More...

static std::string &	escapeText (std::string &text, bool newlinestoo=false)
	Escape HTML control characters in the text, to display literally (deprecated). More...

static bool	removeScript (WString &text)
	Remove tags/attributes from text that are not passive (deprecated). More...

static std::string	jsStringLiteral (const std::string &v, char delimiter= '\'')
	Turn a UTF8 encoded string into a JavaScript string literal. More...

Static Public Member Functions inherited from Wt::WWidget
static WString	tr (const char *key)
	Short hand for WString::tr() More...

Static Protected Member Functions inherited from Wt::WObject
static WObject *	sender ()
	Returns the sender of the current slot call. More...

Detailed Description

A horizontal or vertical slider control.

A slider allows the user to specify an integer value within a particular range using a visual slider.

The slider must be sized explicitly using resize() or by a layout manager. The default size is 150 x 50 pixels for a horizontal slider, and 50 x 150 pixels for a vertical slider.

Usage example:

Wt::WSlider *scaleSlider = new Wt::WSlider(Wt::Horizontal);
scaleSlider->setMinimum(0);
scaleSlider->setMaximum(20);
scaleSlider->setValue(10);
scaleSlider->setTickInterval(5);
scaleSlider->setTickPosition(Wt::WSlider::TicksBothSides);
scaleSlider->resize(300, 50);
scaleSlider->valueChanged().connect(this, &ThisClass::scaleShape);

Horizontal slider with ticks on both sides.

CSS

The non-native slider (HTML4, see setNativeControl()) is styled by the current CSS theme.

Member Enumeration Documentation

enum Wt::WSlider::TickPosition

Enumeration that specifies the location of ticks.

Enumerator
TicksAbove	Render ticks above (horizontal slider)
TicksBelow	Render ticks below (horizontal slider)
TicksLeft	Render ticks on the left side (vertical slider)
TicksRight	Render ticks on the right side (vertical slider)

Constructor & Destructor Documentation

Wt::WSlider::WSlider ( WContainerWidget * parent = 0 )

Creates a default horizontal slider.

The slider shows no ticks, has a range from 0 to 99, and has tickInterval of 0 (defaulting to three ticks over the whole range).

The initial value is 0.

Wt::WSlider::WSlider	(	Orientation	orientation,
		WContainerWidget *	parent = `0`
	)

Creates a default slider of the given orientation.

The slider shows no ticks, has a range from 0 to 99, and has tickInterval of 0 (defaulting to three ticks over the whole range).

The initial value is 0.

Member Function Documentation

WInteractWidget * Wt::WSlider::createHandle ( )

protectedvirtual

Creates the handle (for a non-native widget)

The default implementation creates a container widget. You may want to specialize this function if you want to have more control on the handle appearance or if you want to associate with the handle a tooltip or other information (e.g. a popup balloon).

void Wt::WSlider::enableAjax ( )

virtual

Progresses to an Ajax-enabled widget.

This method is called when the progressive bootstrap method is used, and support for AJAX has been detected. The default behavior will upgrade the widget's event handling to use AJAX instead of full page reloads, and propagate the call to its children.

You may want to reimplement this method if you want to make changes to widget when AJAX is enabled. You should always call the base implementation.

See also: WApplication::enableAjax()

Reimplemented from Wt::WFormWidget.

int Wt::WSlider::handleWidth ( ) const

Returns the handle width.

See also: setHandleWidth()

void Wt::WSlider::layoutSizeChanged	(	int	width,
		int	height
	)

protectedvirtual

Virtual method that indicates a size change.

This method propagates the client-side width and height of the widget when the widget is contained by a layout manager and setLayoutSizeAware(true) was called.

See also: setLayoutSizeAware()

Reimplemented from Wt::WWidget.

int Wt::WSlider::maximum ( ) const

Returns the maximum value.

See also: setMaximum(int)

int Wt::WSlider::minimum ( ) const

Returns the minimum value.

See also: setMinimum(int)

bool Wt::WSlider::nativeControl ( ) const

Returns whether a native HTML5 control is used.

Taking into account the preference for a native control, configured using setNativeControl(), this method returns whether a native control is actually being used.

Orientation Wt::WSlider::orientation ( ) const

Returns the slider orientation.

See also: setOrientation()

void Wt::WSlider::paintTick	(	WPainter &	painter,
		int	value,
		int	x,
		int	y
	)

protectedvirtual

Paints a slider ticks (for a non-native widget)

The default implementation draws ticks taking into account the the tickPosition.

The mid point for the tick should be at position (x, y). The value that corresponds to the tick is also passed.

void Wt::WSlider::render ( WFlags< RenderFlag > flags )

protectedvirtual

Renders the widget.

This function renders the widget (or an update for the widget), after this has been scheduled using scheduleRender().

The default implementation will render the widget by serializing changes to JavaScript and HTML. You may want to reimplement this widget if you have been postponing some of the layout / rendering implementation until the latest moment possible. In that case you should make sure you call the base implementation however.

Reimplemented from Wt::WFormWidget.

void Wt::WSlider::resize	(	const WLength &	width,
		const WLength &	height
	)

virtual

Resizes the widget.

Specifies a fixed size for this widget, setting CSS width and height properties. By default a widget has automatic width and height, which sets a size for the widget following CSS rules.

When the widget is not managed by a layout manager, the automatic (natural) size of a widget depends on whether they widget is a block or inline widget:

a block widget takes by default the width of the parent, and the height that it needs based on its contents
an inline widget takes the width and height that it needs based on its contents (possibly wrapping over multiple lines). The width and height of an inline widget cannot be changed (by the letter of CSS, although most browsers will react to it in varying ways).

When inserted in a layout manager, the size set will be used as a widget's preferred size, but the widget may be given a different size by the layout manager based on available space and stretch factors. The actual size given by a layout manager may be retrieved by making the widget "layout size aware", using setLayoutSizeAware(). If you have defined a "wtResize()" JavaScript method for the widget, then this method will also be called.

The default width and height of a widget is WLength::Auto.

See also: width(), height()

Reimplemented from Wt::WWebWidget.

void Wt::WSlider::setDisabled ( bool disabled )

virtual

Sets whether the widget is disabled.

Enables or disables the widget (including all its descendant widgets). setDisabled(false) will enable this widget and all descendant widgets that are not disabled. A widget is only enabled if it and all its ancestors in the widget tree are disabled.

Typically, a disabled form widget will not allow changing the value, and disabled widgets will not react to mouse click events.

Note: enable() and disable() are considered to be stateless slots by default. If you override setDisabled() and need to modify server state whenever it is called, you'll need to call WObject::isNotStateless().

See also: disable(), enable()

Reimplemented from Wt::WWebWidget.

void Wt::WSlider::setHandleWidth ( int width )

Sets the slider handle width.

This sets the width for the handle, which is needed to accurately position the handle.

The default value is 20 pixels.

void Wt::WSlider::setMaximum ( int maximum )

Sets the maximum value.

The maximum value defines the upper limit of the valid range. The lower limit and current value are automatically adjusted to remain valid.

See also: maximum(), setMinimum(), setRange()

void Wt::WSlider::setMinimum ( int minimum )

Sets the minimum value.

The minimum value defines the lower limit of the valid range. The upper limit and current value are automatically adjusted to remain valid.

See also: minimum(), setMaximum(), setRange()

void Wt::WSlider::setNativeControl ( bool nativeControl )

Configures whether a native HTML5 control should be used.

When native, the new "range" input element, specified by HTML5 and when implemented by the browser, is used rather than the built-in element. A native control is styled by the browser (usually in sync with the OS) rather than through the theme chosen. Settings like tick interval and tick position are ignored.

Note: Vertically oriented sliders are in theory supported by the HTML5 input element, but in practice are usually not rendered correctly by the browser.

void Wt::WSlider::setOrientation ( Wt::Orientation orientation )

Sets the slider orientation.

See also: orientation()

void Wt::WSlider::setRange	(	int	minimum,
		int	maximum
	)

Sets the value range.

See also: setMinimum(), setMaximum()

void Wt::WSlider::setTickInterval ( int tickInterval )

Sets the tick interval.

The tick interval specifies the interval for placing ticks along the slider. The interval is specified in value units (not pixel units). A value of 0 specifies an automatic tick interval, which defaults to 3 ticks spanning the whole range.

See also: tickInterval(), setTickPosition()

void Wt::WSlider::setTickPosition ( WFlags< TickPosition > tickPosition )

Sets the tick position.

The tick position indicates if and where ticks are placed around the slider groove.

See also: tickPosition(), setTickInterval()

void Wt::WSlider::setValue ( int value )

virtual

Sets the slider value.

The value is automatically trimmed to the valid range (minimum() to maximum()).

See also: value()

void Wt::WSlider::setValueText ( const WString & value )

virtual

Sets the value text.

This sets the current value from a string value.

Implements Wt::WFormWidget.

JSignal<int>& Wt::WSlider::sliderMoved ( )

Signal emitted while the user drags the slider.

The current dragged position is passed as the argument. Note that the slider value is not changed while dragging the slider, but only after the slider has been released.