Wrapper around scrollbar to be used inside widgets that need a scrollbar. More...

#include <TGUI/Widgets/Scrollbar.hpp>

Inheritance diagram for tgui::ScrollbarChildWidget:

Public Member Functions
bool	isMouseDownOnThumb () const
	Returns whether the left mouse button has been pressed on top of the thumb of the scrollbar.

bool	isShown () const
	Returns whether the scrollbar is currently visible.

void	draw (BackendRenderTarget &target, RenderStates states) const override
	Draw the widget to a render target.

Public Member Functions inherited from tgui::Scrollbar
	Scrollbar (const char *typeName=StaticWidgetType, bool initRenderer=true)

TGUI_NODISCARD ScrollbarRenderer *	getSharedRenderer () override
	Returns the renderer, which gives access to functions that determine how the widget is displayed.

TGUI_NODISCARD const ScrollbarRenderer *	getSharedRenderer () const override

TGUI_NODISCARD ScrollbarRenderer *	getRenderer () override
	Returns the renderer, which gives access to functions that determine how the widget is displayed.

void	setSize (const Layout2d &size) override
	Changes the size of the scrollbar.

void	setMaximum (unsigned int maximum)
	Sets a maximum value.

TGUI_NODISCARD unsigned int	getMaximum () const
	Returns the maximum value.

void	setValue (unsigned int value)
	Changes the current value.

TGUI_NODISCARD unsigned int	getValue () const
	Returns the current value.

void	setViewportSize (unsigned int viewport)
	Changes the viewport size.

TGUI_NODISCARD unsigned int	getViewportSize () const
	Returns the viewport size.

void	setScrollAmount (unsigned int scrollAmount)
	Changes how much the value changes when scrolling or pressing one of the arrows of the scrollbar.

TGUI_NODISCARD unsigned int	getScrollAmount () const
	Returns how much the value changes when scrolling or pressing one of the arrows of the scrollbar.

void	setAutoHide (bool autoHide)
	Changes whether the scrollbar should hide automatically or not.

TGUI_NODISCARD bool	getAutoHide () const
	Returns whether the scrollbar is hiding automatically or not.

void	setVerticalScroll (bool vertical)
	Changes whether the scrollbar lies horizontally or vertically.

TGUI_NODISCARD bool	getVerticalScroll () const
	Returns whether the scrollbar lies horizontally or vertically.

TGUI_NODISCARD float	getDefaultWidth ()
	Returns the default width of the scrollbar.

TGUI_NODISCARD bool	isMouseOnWidget (Vector2f pos) const override
	Returns whether the mouse position (which is relative to the parent widget) lies on top of the widget.

bool	leftMousePressed (Vector2f pos) override
	Called by the parent when the left mouse button goes down on top of the widget.

void	leftMouseReleased (Vector2f pos) override

void	mouseMoved (Vector2f pos) override

bool	scrolled (float delta, Vector2f pos, bool touch) override
	Called by the parent on scroll event (either from mouse wheel of from two finger scrolling on a touchscreen)

void	leftMouseButtonNoLongerDown () override

virtual void	setSize (const Layout2d &size)
	Changes the size of the widget.

void	setSize (Layout width, Layout height)
	Changes the size of the widget.

Public Member Functions inherited from tgui::Widget
	Widget (const char *typeName, bool initRenderer)

	Widget (const Widget &)
	Copy constructor.

	Widget (Widget &&) noexcept
	Move constructor.

virtual	~Widget ()
	Destructor.

Widget &	operator= (const Widget &)
	Overload of copy assignment operator.

Widget &	operator= (Widget &&) noexcept
	Move assignment.

void	setRenderer (std::shared_ptr< RendererData > rendererData)
	Sets a new renderer for the widget. The renderer determines how the widget looks.

virtual void	setPosition (const Layout2d &position)
	sets the position of the widget

void	setPosition (Layout x, Layout y)
	Sets the position of the widget.

TGUI_NODISCARD Vector2f	getPosition () const
	Gets the position of the widget.

void	setSize (Layout width, Layout height)
	Changes the size of the widget.

void	setWidth (Layout width)
	Changes the width of the widget.

void	setHeight (Layout height)
	Changes the height of the widget.

TGUI_NODISCARD Vector2f	getSize () const
	Returns the size of the widget.

virtual TGUI_NODISCARD Vector2f	getFullSize () const
	Returns the entire size that the widget is using.

virtual TGUI_NODISCARD Vector2f	getAbsolutePosition (Vector2f offset={}) const
	Get the absolute position of the widget instead of the relative position to its parent.

virtual TGUI_NODISCARD Vector2f	getWidgetOffset () const
	Returns the distance between the position where the widget is drawn and where the widget is placed.

void	setAutoLayout (AutoLayout layout)

TGUI_NODISCARD AutoLayout	getAutoLayout () const

void	setOrigin (float x, float y)
	Sets the origin point on which the position, scale and rotation is based.

void	setOrigin (Vector2f origin)
	Sets the origin point on which the position, scale and rotation is based.

TGUI_NODISCARD Vector2f	getOrigin () const
	Returns the relative origin point on which the position, scale and rotation is based.

void	setScale (Vector2f scaleFactors)
	Sets the scaling to be applied to the widget.

void	setScale (Vector2f scaleFactors, Vector2f origin)
	Sets the scaling to be applied to the widget.

void	setScale (float scaleFactor)
	Sets the scaling to be applied to the widget.

void	setScale (float scaleFactor, Vector2f origin)
	Sets the scaling to be applied to the widget.

TGUI_NODISCARD Vector2f	getScale () const
	Returns the scaling to be applied to the widget.

TGUI_NODISCARD Vector2f	getScaleOrigin () const
	Returns the origin used for scaling.

void	setRotation (float angle)
	Sets the rotation to be applied to the widget.

void	setRotation (float angle, Vector2f origin)
	Sets the rotation to be applied to the widget.

TGUI_NODISCARD float	getRotation () const
	Returns the rotation to be applied to the widget.

TGUI_NODISCARD Vector2f	getRotationOrigin () const
	Returns the origin used for rotations.

void	showWithEffect (ShowEffectType type, Duration duration)
	Shows the widget by introducing it with an animation.

void	hideWithEffect (ShowEffectType type, Duration duration)
	Hides the widget by making it leave with an animation.

void	moveWithAnimation (Layout2d position, Duration duration)
	Moves the widget from its current position to the given position, over a given duration.

void	resizeWithAnimation (Layout2d size, Duration duration)
	Resizes the widget from its current size to the given size, over a given duration.

virtual void	setVisible (bool visible)
	Shows or hides a widget.

TGUI_NODISCARD bool	isVisible () const
	Returns true when the widget is visible.

virtual void	setEnabled (bool enabled)
	Enables or disables the widget.

TGUI_NODISCARD bool	isEnabled () const
	Returns true when the widget is enabled.

virtual void	setFocused (bool focused)
	Focus or unfocus the widget.

TGUI_NODISCARD bool	isFocused () const
	Returns true when the widget is focused and false otherwise.

TGUI_NODISCARD const String &	getWidgetType () const
	Returns the type of the widget.

TGUI_NODISCARD Container *	getParent () const
	Returns a pointer to the parent widget.

TGUI_NODISCARD BackendGui *	getParentGui () const
	Returns a pointer to the gui to which this widget belongs.

TGUI_NODISCARD bool	isAnimationPlaying () const
	Returns whether there is an active animation (started with showWithEffect or hideWithEffect)

void	moveToFront ()
	Places the widget before all other widgets.

void	moveToBack ()
	Places the widget behind all other widgets.

void	setUserData (Any userData)
	Stores some data into the widget.

template<typename DataType >
TGUI_NODISCARD DataType	getUserData () const
	Returns data stored in the widget.

TGUI_NODISCARD bool	hasUserData () const
	Returns whether data stored in the widget.

void	setInheritedFont (const Font &font)
	Sets the font of the widget that is used when no font is set in the renderer.

TGUI_NODISCARD const Font &	getInheritedFont () const
	Returns the font of the widget that is used when no font is set in the renderer.

void	setInheritedOpacity (float opacity)
	Sets the opacity of the widget that will be multiplied with the opacity set in the renderer.

TGUI_NODISCARD float	getInheritedOpacity () const
	Returns the opacity of the widget that is multiplied with the opacity set in the renderer.

void	setTextSize (unsigned int size)
	Changes the character size of text in this widget if it uses text.

TGUI_NODISCARD unsigned int	getTextSize () const
	Returns the character size of text in this widget.

void	setToolTip (Widget::Ptr toolTip)
	Sets the tool tip that should be displayed when hovering over the widget.

TGUI_NODISCARD Widget::Ptr	getToolTip () const
	Returns the tool tip that is displayed when hovering over the widget.

void	setWidgetName (const String &name)
	Changes the name of a widget.

TGUI_NODISCARD String	getWidgetName () const
	Returns the name of a widget.

void	setMouseCursor (Cursor::Type cursor)
	Changes which mouse cursor is shown when hovering over the widget.

TGUI_NODISCARD Cursor::Type	getMouseCursor () const
	Returns which mouse cursor is shown when hovering over the widget.

void	setFocusable (bool focusable)
	Changes whether a widget could be focused.

TGUI_NODISCARD bool	isFocusable () const
	Returns whether a widget could be focused.

void	setNavigationUp (const Widget::Ptr &widgetAbove)
	Changes which widget should become focused when navigating upwards from this widget.

TGUI_NODISCARD Widget::Ptr	getNavigationUp () const
	Returns which widget would become focused when navigating upwards from this widget.

void	setNavigationDown (const Widget::Ptr &widgetBelow)
	Changes which widget should become focused when navigating downwards from this widget.

TGUI_NODISCARD Widget::Ptr	getNavigationDown () const
	Returns which widget would become focused when navigating downwards from this widget.

void	setNavigationLeft (const Widget::Ptr &widgetLeft)
	Changes which widget should become focused when navigating to the left from this widget.

TGUI_NODISCARD Widget::Ptr	getNavigationLeft () const
	Returns which widget would become focused when navigating to the left from this widget.

void	setNavigationRight (const Widget::Ptr &widgetRight)
	Changes which widget should become focused when navigating to the right from this widget.

TGUI_NODISCARD Widget::Ptr	getNavigationRight () const
	Returns which widget would become focused when navigating to the right from this widget.

void	finishAllAnimations ()
	Makes all animations of the widget finish immediately.

virtual TGUI_NODISCARD bool	canGainFocus () const
	Returns whether the widget can currently gain focus.

TGUI_NODISCARD bool	isContainer () const
	Returns whether the widget is a container widget or not.

TGUI_NODISCARD bool	isDraggableWidget () const
	Returns whether the widget has something to drag (e.g. slider or scrollbar thumbs)

TGUI_NODISCARD bool	isMouseDown () const
	Returns whether the left mouse button has been pressed on top of the widget.

virtual void	setParent (Container *parent)

virtual bool	updateTime (Duration elapsedTime)

void	setAutoLayoutUpdateEnabled (bool enabled)

virtual void	rightMousePressed (Vector2f pos)

virtual void	rightMouseReleased (Vector2f pos)

virtual void	mouseReleased (Event::MouseButton button, Vector2f pos)

virtual void	keyPressed (const Event::KeyEvent &event)

virtual bool	canHandleKeyPress (const Event::KeyEvent &event)
	Called by the parent of the widget to check if keyPressed would process the event.

virtual void	textEntered (char32_t key)

virtual void	mouseNoLongerOnWidget ()

virtual void	rightMouseButtonNoLongerDown ()

virtual TGUI_NODISCARD Widget::Ptr	askToolTip (Vector2f mousePos)

TGUI_NODISCARD const Layout2d &	getPositionLayout () const

TGUI_NODISCARD const Layout2d &	getSizeLayout () const

void	bindPositionLayout (Layout *layout)

void	unbindPositionLayout (Layout *layout)

void	bindSizeLayout (Layout *layout)

void	unbindSizeLayout (Layout *layout)

template<typename WidgetType >
TGUI_NODISCARD std::shared_ptr< const WidgetType >	cast () const
	Downcast const widget.

template<typename WidgetType >
TGUI_NODISCARD std::shared_ptr< WidgetType >	cast ()
	Downcast widget.

void	rendererChangedCallback (const String &property)

virtual void	updateTextSize ()

Additional Inherited Members
Public Types inherited from tgui::Scrollbar
enum class	Policy { Automatic , Always , Never }
	Defines when the scrollbar shows up. More...

using	Ptr = std::shared_ptr< Scrollbar >
	Shared widget pointer.

using	ConstPtr = std::shared_ptr< const Scrollbar >
	Shared constant widget pointer.

Public Types inherited from tgui::Widget
using	Ptr = std::shared_ptr< Widget >
	Shared widget pointer.

using	ConstPtr = std::shared_ptr< const Widget >
	Shared constant widget pointer.

Static Public Member Functions inherited from tgui::Scrollbar
static TGUI_NODISCARD Scrollbar::Ptr	create ()
	Creates a new scrollbar widget.

static TGUI_NODISCARD Scrollbar::Ptr	copy (const Scrollbar::ConstPtr &scrollbar)
	Makes a copy of another scrollbar.

Public Attributes inherited from tgui::Scrollbar
SignalUInt	onValueChange = {"ValueChanged"}
	Value of the scrollbar changed. Optional parameter: new value.

Public Attributes inherited from tgui::Widget
SignalVector2f	onPositionChange = {"PositionChanged"}
	The position of the widget changed. Optional parameter: new position.

SignalVector2f	onSizeChange = {"SizeChanged"}
	The size of the widget changed. Optional parameter: new size.

Signal	onFocus = {"Focused"}
	The widget was focused.

Signal	onUnfocus = {"Unfocused"}
	The widget was unfocused.

Signal	onMouseEnter = {"MouseEntered"}
	The mouse entered the widget.

Signal	onMouseLeave = {"MouseLeft"}
	The mouse left the widget.

SignalShowEffect	onShowEffectFinish = {"ShowEffectFinished"}
	A show or hide effect finished. Optional parameters: effect type, new widget visibility or both.

SignalAnimationType	onAnimationFinish = {"AnimationFinished"}
	An animation has finished.

Static Public Attributes inherited from tgui::Scrollbar
static constexpr const char	StaticWidgetType [] = "Scrollbar"
	Type name of the widget.

Protected Types inherited from tgui::Scrollbar
enum class	Part { Track , Thumb , ArrowUp , ArrowDown }

Protected Types inherited from tgui::Widget
using	SavingRenderersMap = std::map< const Widget *, std::pair< std::unique_ptr< DataIO::Node >, String > >

using	LoadingRenderersMap = std::map< String, std::shared_ptr< RendererData > >

Protected Member Functions inherited from tgui::Scrollbar
void	updateSize ()

TGUI_NODISCARD Signal &	getSignal (String signalName) override
	Retrieves a signal based on its name.

void	rendererChanged (const String &property) override
	Function called when one of the properties of the renderer is changed.

TGUI_NODISCARD std::unique_ptr< DataIO::Node >	save (SavingRenderersMap &renderers) const override
	Saves the widget as a tree node in order to save it to a file.

void	load (const std::unique_ptr< DataIO::Node > &node, const LoadingRenderersMap &renderers) override
	Loads the widget from a tree of nodes.

void	updateThumbPosition ()

TGUI_NODISCARD Widget::Ptr	clone () const override
	Makes a copy of the widget if you don't know its exact type.

Protected Member Functions inherited from tgui::Widget
virtual void	mouseEnteredWidget ()
	This function is called when the mouse enters the widget.

virtual void	mouseLeftWidget ()
	This function is called when the mouse leaves the widget.

void	recalculateBoundPositionLayouts ()
	Calls recalculateValue() on each layout in m_boundPositionLayouts.

void	recalculateBoundSizeLayouts ()
	Calls recalculateValue() on each layout in m_boundSizeLayouts.

Protected Attributes inherited from tgui::Scrollbar
Part	m_mouseHoverOverPart = Part::Thumb

bool	m_mouseDownOnThumb = false

Vector2f	m_mouseDownOnThumbPos

unsigned int	m_maximum = 10

unsigned int	m_value = 0

unsigned int	m_viewportSize = 1

bool	m_verticalScroll = true

bool	m_verticalImage = true

unsigned int	m_scrollAmount = 1

bool	m_autoHide = true

bool	m_mouseDownOnArrow = false

bool	m_sizeSet = false

std::chrono::steady_clock::time_point	m_lastSuccessfulScrollTime

Vector2f	m_lastSuccessfulScrollPos

FloatRect	m_track

FloatRect	m_thumb

FloatRect	m_arrowUp

FloatRect	m_arrowDown

Sprite	m_spriteTrack

Sprite	m_spriteTrackHover

Sprite	m_spriteThumb

Sprite	m_spriteThumbHover

Sprite	m_spriteArrowUp

Sprite	m_spriteArrowUpHover

Sprite	m_spriteArrowDown

Sprite	m_spriteArrowDownHover

Color	m_thumbColorCached

Color	m_thumbColorHoverCached

Color	m_trackColorCached

Color	m_trackColorHoverCached

Color	m_arrowColorCached

Color	m_arrowColorHoverCached

Color	m_arrowBackgroundColorCached

Color	m_arrowBackgroundColorHoverCached

Protected Attributes inherited from tgui::Widget
String	m_type

String	m_name

Layout2d	m_position
	Stores the position of this widget.

Layout2d	m_size
	Stores the size of this widget.

unsigned int	m_textSize = 0

Vector2f	m_origin

Optional< Vector2f >	m_rotationOrigin

Optional< Vector2f >	m_scaleOrigin

Vector2f	m_scaleFactors = {1, 1}

float	m_rotationDeg = 0

Vector2f	m_prevPosition

Vector2f	m_prevSize

std::unordered_set< Layout * >	m_boundPositionLayouts

std::unordered_set< Layout * >	m_boundSizeLayouts

bool	m_enabled = true
	Stores the flag indicating whether this widget is enabled.

bool	m_visible = true
	Stores the flag indicating whether this widget is visible.

Container *	m_parent = nullptr

BackendGui *	m_parentGui = nullptr

bool	m_mouseHover = false

bool	m_mouseDown = false

bool	m_focused = false

bool	m_focusable = true

std::weak_ptr< Widget >	m_navWidgetUp

std::weak_ptr< Widget >	m_navWidgetDown

std::weak_ptr< Widget >	m_navWidgetRight

std::weak_ptr< Widget >	m_navWidgetLeft

Duration	m_animationTimeElapsed

bool	m_containerWidget = false

Widget::Ptr	m_toolTip = nullptr

aurora::CopiedPtr< WidgetRenderer >	m_renderer = nullptr

std::vector< std::unique_ptr< priv::Animation > >	m_showAnimations

Font	m_inheritedFont

float	m_inheritedOpacity = 1

Any	m_userData

Cursor::Type	m_mouseCursor = Cursor::Type::Arrow

AutoLayout	m_autoLayout = AutoLayout::Manual

bool	m_autoLayoutUpdateEnabled = true

Font	m_fontCached = Font::getGlobalFont()

float	m_opacityCached = 1

bool	m_transparentTextureCached = false

unsigned int	m_textSizeCached = 0

Detailed Description

Wrapper around scrollbar to be used inside widgets that need a scrollbar.

Member Function Documentation

◆ draw()

void tgui::ScrollbarChildWidget::draw	(	BackendRenderTarget &	target,
		RenderStates	states
	)		const

overridevirtual

Draw the widget to a render target.

Parameters

target	Render target to draw to
states	Current render states

Reimplemented from tgui::Scrollbar.

◆ isShown()

bool tgui::ScrollbarChildWidget::isShown ( ) const

Returns whether the scrollbar is currently visible.

Returns: Is the scrollbar visible?

The scrollbar is visible when auto hide is disabled or when the maximum is higher than the viewport size

The documentation for this class was generated from the following file:

include/TGUI/Widgets/Scrollbar.hpp

TGUI

Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ draw()

◆ isShown()