Abstract class for box layout containers. More...

#include <TGUI/Widgets/BoxLayout.hpp>

Inheritance diagram for tgui::BoxLayout:

Public Types
typedef std::shared_ptr< BoxLayout >	Ptr
	Shared widget pointer.

typedef std::shared_ptr< const BoxLayout >	ConstPtr
	Shared constant widget pointer.

Public Types inherited from tgui::Group
typedef std::shared_ptr< Group >	Ptr
	Shared widget pointer.

typedef std::shared_ptr< const Group >	ConstPtr
	Shared constant widget pointer.

Public Types inherited from tgui::Container
typedef std::shared_ptr< Container >	Ptr
	Shared widget pointer.

typedef std::shared_ptr< const Container >	ConstPtr
	Shared constant widget pointer.

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

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

Public Member Functions
	BoxLayout (const char *typeName, bool initRenderer)

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

const BoxLayoutRenderer *	getSharedRenderer () const

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

const BoxLayoutRenderer *	getRenderer () const

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

void	add (const Widget::Ptr &widget, const String &widgetName="") override
	Adds a widget at the end of the layout.

virtual void	insert (std::size_t index, const Widget::Ptr &widget, const String &widgetName="")
	Inserts a widget to the layout.

bool	remove (const Widget::Ptr &widget) override
	Removes a single widget that was added to the container.

virtual bool	remove (std::size_t index)
	Removes a single widget that was added to the container.

Widget::Ptr	get (std::size_t index) const
	Returns the widget at the given index in the layout.

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

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

Widget::Ptr	get (const String &widgetName) const
	Returns a pointer to a widget that was added earlier.

template<class T >
T::Ptr	get (const String &widgetName) const
	Returns a pointer to a widget that was added earlier.

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

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

const GroupRenderer *	getSharedRenderer () const

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

const GroupRenderer *	getRenderer () const

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

Vector2f	getInnerSize () const override
	Returns the space available for widgets inside the container.

Vector2f	getChildWidgetsOffset () const override
	Returns the distance between the position of the container and a widget that would be drawn inside this container on relative position (0,0)

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

void	draw (BackendRenderTargetBase &target, RenderStates states) const override
	Draw the child widgets to a render target.

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::Container
	Container (const char *typeName, bool initRenderer)

	Container (const Container &copy)
	Copy constructor.

	Container (Container &&copy) noexcept
	Move constructor.

	~Container ()
	Destructor.

Container &	operator= (const Container &right)
	Overload of copy assignment operator.

Container &	operator= (Container &&right) noexcept
	Overload of move assignment operator.

const std::vector< Widget::Ptr > &	getWidgets () const
	Returns a list of all the widgets in this container.

template<typename Function >
void	sortWidgets (Function &&function)
	Sorts a list of all the widgets in this container.

Widget::Ptr	get (const String &widgetName) const
	Returns a pointer to a widget that was added earlier.

template<class T >
T::Ptr	get (const String &widgetName) const
	Returns a pointer to a widget that was added earlier.

virtual void	removeAllWidgets ()
	Removes all widgets that were added to the container.

void	setTextSize (unsigned int size) override
	Changes the character size of all existing and future child widgets.

void	loadWidgetsFromFile (const String &filename, bool replaceExisting=true)
	Loads the child widgets from a text file.

void	saveWidgetsToFile (const String &filename)
	Saves the child widgets to a text file.

void	loadWidgetsFromStream (std::stringstream &stream, bool replaceExisting=true)
	Loads the child widgets from a string stream.

void	loadWidgetsFromStream (std::stringstream &&stream, bool replaceExisting=true)
	Loads the child widgets from a string stream.

void	saveWidgetsToStream (std::stringstream &stream, const String &rootDirectory="") const
	Saves the child widgets to a text file.

void	loadWidgetsFromNodeTree (const std::unique_ptr< DataIO::Node > &rootNode, bool replaceExisting=true)
	Loads the child widgets from a tree of nodes that contain all information about the widgets.

std::unique_ptr< DataIO::Node >	saveWidgetsToNodeTree (const String &rootDirectory="") const
	Saves the child widgets to a tree of nodes that contain all information about the widgets.

void	moveWidgetToFront (const Widget::Ptr &widget)
	Places a widget before all other widgets, to the front of the z-order.

void	moveWidgetToBack (const Widget::Ptr &widget)
	Places a widget behind all other widgets, to the back of the z-order.

std::size_t	moveWidgetForward (const Widget::Ptr &widget)
	Places a widget one step forward in the z-order.

std::size_t	moveWidgetBackward (const Widget::Ptr &widget)
	Places a widget one step backward in the z-order.

bool	setWidgetIndex (const Widget::Ptr &widget, std::size_t index)
	Changes the index of a widget in this container.

int	getWidgetIndex (const Widget::Ptr &widget) const
	Returns the current index of a widget in this container.

Widget::Ptr	getFocusedChild () const
	Returns the child widget that is focused inside this container.

Widget::Ptr	getFocusedLeaf () const
	Returns the leaf child widget that is focused inside this container.

virtual Widget::Ptr	getWidgetAtPosition (Vector2f pos) const
	Returns the leaf child widget that is located at the given position.

bool	focusNextWidget (bool recursive=true)
	Focuses the next widget in this container.

bool	focusPreviousWidget (bool recursive=true)
	Focuses the previous widget in this container.

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

bool	processMouseMoveEvent (Vector2f pos)
	Inform the container about a mouse move event.

bool	processMousePressEvent (Event::MouseButton button, Vector2f pos)
	Inform the container about a mouse press event.

bool	processMouseReleaseEvent (Event::MouseButton button, Vector2f pos)
	Inform the container about a mouse release event.

bool	processMouseWheelScrollEvent (float delta, Vector2f pos)
	Inform the container about a mouse wheel scroll event.

bool	processKeyPressEvent (Event::KeyEvent event)
	Inform the container about a key press event.

bool	processTextEnteredEvent (char32_t key)
	Inform the container about a key press event.

void	childWidgetFocused (const Widget::Ptr &child)

void	leftMousePressed (Vector2f pos) override

void	rightMousePressed (Vector2f pos) override

void	leftMouseReleased (Vector2f pos) override

void	rightMouseReleased (Vector2f pos) override

void	mouseMoved (Vector2f pos) override

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

void	textEntered (char32_t key) override

bool	mouseWheelScrolled (float delta, Vector2f pos) override

void	mouseNoLongerOnWidget () override

void	leftMouseButtonNoLongerDown () override

void	rightMouseButtonNoLongerDown () override

Widget::Ptr	askToolTip (Vector2f mousePos) override

bool	updateTime (Duration elapsedTime) override

void	setParent (Container *parent) override

void	setParentGui (GuiBase *gui)

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 &&)
	Move constructor.

virtual	~Widget ()
	Destructor.

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

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

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

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

const WidgetRenderer *	getSharedRenderer () const

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

const WidgetRenderer *	getRenderer () const

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

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

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.

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

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

virtual Vector2f	getAbsolutePosition () const
	Get the absolute position of the top-left point of the widget instead of the relative position to its parent.

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

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.

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.

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

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.

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

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.

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

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

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

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

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

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

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

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

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 T >
T	getUserData () const
	Returns 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.

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.

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

virtual 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.

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.

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.

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.

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

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

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

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

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

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

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

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

const Layout2d &	getPositionLayout () const

const Layout2d &	getSizeLayout () const

void	bindPositionLayout (Layout *layout)

void	unbindPositionLayout (Layout *layout)

void	bindSizeLayout (Layout *layout)

void	unbindSizeLayout (Layout *layout)

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

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

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

virtual void	updateWidgets ()=0

Protected Member Functions inherited from tgui::Group
void	rendererChanged (const String &property) override
	Function called when one of the properties of the renderer is changed.

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::Container
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.

Widget::Ptr	getWidgetBelowMouse (Vector2f mousePos) const

Widget::Ptr	updateWidgetBelowMouse (Vector2f mousePos)

std::size_t	getFocusedWidgetIndex () const

bool	tryFocusWidget (const tgui::Widget::Ptr &widget, bool reverseWidgetOrder, bool recursive)

Vector2f	transformMousePos (const Widget::Ptr &widget, Vector2f mousePos) const

void	widgetAdded (Widget::Ptr widgetPtr)

void	injectFormFilePath (const std::unique_ptr< DataIO::Node > &node, const String &path, std::map< String, bool > &checkedFilenames) const

void	loadWidgetsImpl (const std::unique_ptr< DataIO::Node > &rootNode, bool replaceExisting)

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.

Protected Attributes
float	m_spaceBetweenWidgetsCached = 0

Protected Attributes inherited from tgui::Group
Padding	m_paddingCached

Protected Attributes inherited from tgui::Container
std::vector< Widget::Ptr >	m_widgets

Widget::Ptr	m_widgetBelowMouse

Widget::Ptr	m_widgetWithLeftMouseDown

Widget::Ptr	m_widgetWithRightMouseDown

Widget::Ptr	m_focusedWidget

Vector2f	m_prevInnerSize

bool	m_isolatedFocus = false

Protected Attributes inherited from tgui::Widget
String	m_type

String	m_name

Layout2d	m_position

Layout2d	m_size

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

bool	m_visible = true

Container *	m_parent = nullptr

GuiBase *	m_parentGui = nullptr

bool	m_mouseHover = false

bool	m_mouseDown = false

bool	m_focused = false

bool	m_focusable = true

Duration	m_animationTimeElapsed

bool	m_draggableWidget = false

bool	m_containerWidget = false

Widget::Ptr	m_toolTip = nullptr

aurora::CopiedPtr< WidgetRenderer >	m_renderer = nullptr

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

Font	m_inheritedFont

float	m_inheritedOpacity = 1

Font	m_fontCached = Font::getGlobalFont()

float	m_opacityCached = 1

bool	m_transparentTextureCached = false

Any	m_userData

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

std::function< void(const String &property)>	m_rendererChangedCallback = [this](const String& property){ rendererChangedCallback(property); }

Additional Inherited Members
Static Public Member Functions inherited from tgui::Group
static Group::Ptr	create (const Layout2d &size={"100%", "100%"})
	Creates a new group.

static Group::Ptr	copy (Group::ConstPtr group)
	Makes a copy of another group.

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	onAnimationFinish = {"AnimationFinished"}

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

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 > >

Detailed Description

Abstract class for box layout containers.

Member Function Documentation

◆ add()

void tgui::BoxLayout::add	(	const Widget::Ptr &	widget,
		const String &	widgetName = `""`
	)

overridevirtual

Adds a widget at the end of the layout.

Parameters

widget	Pointer to the widget you would like to add
widgetName	An identifier to access to the widget later

Reimplemented from tgui::Container.

Reimplemented in tgui::BoxLayoutRatios.

◆ get() [1/3]

Widget::Ptr tgui::Container::get ( const String & widgetName ) const

Returns a pointer to a widget that was added earlier.

Parameters

widgetName The name that was given to the widget when it was added to the container

The container will first search for widgets that are direct children of it, but when none of the child widgets match the given name, a recursive search will be performed.

Returns: Pointer to the earlier added widget

Warning: This function will return nullptr when an unknown widget name was passed

◆ get() [2/3]

template<class T >

T::Ptr tgui::Container::get ( const String & widgetName ) const

inline

Returns a pointer to a widget that was added earlier.

Parameters

widgetName The name that was given to the widget when it was added to the container

Returns: Pointer to the earlier added widget. The pointer will already be casted to the desired type

The container will first search for widgets that are direct children of it, but when none of the child widgets match the given name, a recursive search will be performed.

Warning: This function will return nullptr when an unknown widget name was passed

◆ get() [3/3]

Widget::Ptr tgui::BoxLayout::get ( std::size_t index ) const

Returns the widget at the given index in the layout.

Parameters

index Index of the widget in the layout

Returns: Widget of given index, or nullptr if index was too high

◆ getRenderer()

BoxLayoutRenderer * tgui::BoxLayout::getRenderer ( )

Returns the renderer, which gives access to functions that determine how the widget is displayed.

Returns: Temporary pointer to the renderer

Warning: After calling this function, the widget has its own copy of the renderer and it will no longer be shared.

◆ getSharedRenderer()

BoxLayoutRenderer * tgui::BoxLayout::getSharedRenderer ( )

Returns the renderer, which gives access to functions that determine how the widget is displayed.

Returns: Temporary pointer to the renderer that may be shared with other widgets using the same renderer

◆ insert()

virtual void tgui::BoxLayout::insert	(	std::size_t	index,
		const Widget::Ptr &	widget,
		const String &	widgetName = `""`
	)

virtual

Inserts a widget to the layout.

Parameters

widget	Pointer to the widget you would like to add
index	Index of the widget in the container
widgetName	An identifier to access to the widget later

If the index is too high, the widget will simply be added at the end of the list.

Reimplemented in tgui::BoxLayoutRatios.

◆ remove() [1/2]

bool tgui::BoxLayout::remove ( const Widget::Ptr & widget )

overridevirtual

Removes a single widget that was added to the container.

Parameters

widget Pointer to the widget to remove

Returns: True if widget is removed, false if widget was not found

Reimplemented from tgui::Container.

Reimplemented in tgui::BoxLayoutRatios.

◆ remove() [2/2]

virtual bool tgui::BoxLayout::remove ( std::size_t index )

virtual

Removes a single widget that was added to the container.

Parameters

index Index in the layout of the widget to remove

Returns: False if the index was too high

Reimplemented in tgui::BoxLayoutRatios, and tgui::BoxLayoutRatios.

◆ rendererChanged()

void tgui::BoxLayout::rendererChanged ( const String & property )

overrideprotectedvirtual

Function called when one of the properties of the renderer is changed.

Parameters

property Name of the property that was changed

Reimplemented from tgui::Widget.

◆ setSize() [1/3]

virtual void tgui::Widget::setSize ( const Layout2d & size )

virtual

Changes the size of the widget.

Parameters

size	Size of the widget

Usage examples:

// Give the widget an exact size
widget->setSize({40, 30});
 
// Give the widget a size relative to the size of its parent
widget->setSize({"20%", "5%"});
 
// Make the widget 50 pixels higher than some other widget and automatically resize it when the other widget resizes
widget->setSize({200, tgui::bindHeight(otherWidget) + 50});

Reimplemented from tgui::Widget.

◆ setSize() [2/3]

void tgui::BoxLayout::setSize ( const Layout2d & size )

overridevirtual

Changes the size of the group.

Parameters

size	The new size of the group

Reimplemented from tgui::Widget.

◆ setSize() [3/3]

void tgui::Widget::setSize	(	Layout	width,
		Layout	height
	)

inline

Changes the size of the widget.

Parameters

width	Width of the widget
height	Height of the widget

Warning: This setSize overload must never be used from internal TGUI code or by custom widget implementations

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

include/TGUI/Widgets/BoxLayout.hpp

TGUI

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ add()

◆ get() [1/3]

◆ get() [2/3]

◆ get() [3/3]

◆ getRenderer()

◆ getSharedRenderer()

◆ insert()

◆ remove() [1/2]

◆ remove() [2/2]

◆ rendererChanged()

◆ setSize() [1/3]

◆ setSize() [2/3]

◆ setSize() [3/3]