Inheritance diagram for NWidgetLayer:

Public Member Functions
	NWidgetLayer (WidgetID index)

void	SetupSmallestSize (Window *w) override
	Compute smallest size needed by the widget.

void	AssignSizePosition (SizingType sizing, int x, int y, uint given_width, uint given_height, bool rtl) override
	Assign size and position to the widget.

void	Draw (const Window *w) override
	Draw the widgets of the tree.

Public Member Functions inherited from NWidgetContainer
	NWidgetContainer (WidgetType tp)

void	AdjustPaddingForZoom () override

void	Add (std::unique_ptr< NWidgetBase > &&wid)
	Append widget wid to container.

void	FillWidgetLookup (WidgetLookup &widget_lookup) override
	Fill the Window::widget_lookup with pointers to nested widgets in the tree.

NWidgetCore *	GetWidgetFromPos (int x, int y) override
	Retrieve a widget by its position.

bool	IsEmpty ()
	Return whether the container is empty.

NWidgetBase *	GetWidgetOfType (WidgetType tp) override
	Retrieve a widget by its type.

Public Member Functions inherited from NWidgetBase
	NWidgetBase (WidgetType tp)
	Base class constructor.

void	ApplyAspectRatio ()

template<class NWID >
NWID *	GetParentWidget ()
	Get parent widget of type NWID.

template<class NWID >
const NWID *	GetParentWidget () const
	Get parent widget of type NWID.

virtual bool	IsHighlighted () const

virtual TextColour	GetHighlightColour () const

virtual void	SetHighlighted (TextColour highlight_colour)

void	SetPadding (uint8_t top, uint8_t right, uint8_t bottom, uint8_t left)
	Set additional space (padding) around the widget.

void	SetPadding (const RectPadding &padding)
	Set additional space (padding) around the widget.

uint	GetHorizontalStepSize (SizingType sizing) const
	Get the horizontal sizing step.

uint	GetVerticalStepSize (SizingType sizing) const
	Get the vertical sizing step.

virtual void	SetDirty (const Window *w) const
	Mark the widget as 'dirty' (in need of repaint).

Rect	GetCurrentRect () const

Public Member Functions inherited from ZeroedMemoryAllocator
void *	operator new (size_t size)
	Memory allocator for a single class instance.

void *	operator new[] (size_t size)
	Memory allocator for an array of class instances.

void	operator delete (void *ptr)
	Memory release for a single class instance.

void	operator delete[] (void *ptr)
	Memory release for an array of class instances.

Data Fields
const WidgetID	index
	If non-negative, index in the Window::widget_lookup.

Data Fields inherited from NWidgetBase
WidgetType	type
	Type of the widget / nested widget.

uint	fill_x
	Horizontal fill stepsize (from initial size, `0` means not resizable).

uint	fill_y
	Vertical fill stepsize (from initial size, `0` means not resizable).

uint	resize_x
	Horizontal resize step (`0` means not resizable).

uint	resize_y
	Vertical resize step (`0` means not resizable).

uint	smallest_x
	Smallest horizontal size of the widget in a filled window.

uint	smallest_y
	Smallest vertical size of the widget in a filled window.

uint	current_x
	Current horizontal size (after resizing).

uint	current_y
	Current vertical size (after resizing).

float	aspect_ratio = 0
	Desired aspect ratio of widget.

AspectFlags	aspect_flags = AspectFlags::ResizeX
	Which dimensions can be resized.

int	pos_x
	Horizontal position of top-left corner of the widget in the window.

int	pos_y
	Vertical position of top-left corner of the widget in the window.

RectPadding	padding
	Padding added to the widget. Managed by parent container widget. (parent container may swap left and right for RTL)

RectPadding	uz_padding
	Unscaled padding, for resize calculation.

NWidgetBase *	parent
	Parent widget of this widget, automatically filled in when added to container.

Additional Inherited Members
Protected Member Functions inherited from NWidgetBase
void	StoreSizePosition (SizingType sizing, int x, int y, uint given_width, uint given_height)
	Store size and position.

Protected Attributes inherited from NWidgetContainer
std::vector< std::unique_ptr< NWidgetBase > >	children
	Child widgets in contaier.

Detailed Description

Definition at line 1344 of file widget.cpp.

Constructor & Destructor Documentation

◆ NWidgetLayer()

NWidgetLayer::NWidgetLayer ( WidgetID index )

Definition at line 1356 of file widget.cpp.

Member Function Documentation

◆ AssignSizePosition()

void NWidgetLayer::AssignSizePosition	(	SizingType	sizing,
		int	x,
		int	y,
		uint	given_width,
		uint	given_height,
		bool	rtl
	)

overridevirtual

Assign size and position to the widget.

Parameters

sizing	Type of resizing to perform.
x	Horizontal offset of the widget relative to the left edge of the window.
y	Vertical offset of the widget relative to the top edge of the window.
given_width	Width allocated to the widget.
given_height	Height allocated to the widget.
rtl	Adapt for right-to-left languages (position contents of horizontal containers backwards).

Afterwards, pos_x and pos_y contain the top-left position of the widget, smallest_x and smallest_y contain the smallest size such that all widgets of the window are consistent, and current_x and current_y contain the current size.

Implements NWidgetBase.

Definition at line 1380 of file widget.cpp.

References NWidgetContainer::children, ComputeMaxSize(), NWidgetBase::smallest_x, NWidgetBase::smallest_y, ST_SMALLEST, and NWidgetBase::StoreSizePosition().

◆ Draw()

void NWidgetLayer::Draw ( const Window * w )

overridevirtual

Draw the widgets of the tree.

The function calls Window::DrawWidget for each widget with a non-negative index, after the widget itself is painted.

Parameters

w	Window that owns the tree.

Reimplemented from NWidgetContainer.

Definition at line 1398 of file widget.cpp.

References NWidgetContainer::children.

◆ SetupSmallestSize()

void NWidgetLayer::SetupSmallestSize ( Window * w )

overridevirtual

Compute smallest size needed by the widget.

The smallest size of a widget is the smallest size that a widget needs to display itself properly. In addition, filling and resizing of the widget are computed. The function calls Window::UpdateWidgetSize for each leaf widget and background widget without child with a non-negative index.

Parameters

w	Window owning the widget.

Note: After the computation, the results can be queried by accessing the smallest_x and smallest_y data members of the widget.

Implements NWidgetBase.

Definition at line 1358 of file widget.cpp.

References NWidgetContainer::children, NWidgetBase::fill_x, NWidgetBase::fill_y, NWidgetContainer::IsEmpty(), NWidgetBase::resize_x, NWidgetBase::resize_y, NWidgetBase::SetupSmallestSize(), NWidgetBase::smallest_x, and NWidgetBase::smallest_y.

Field Documentation

◆ index

const WidgetID NWidgetLayer::index

If non-negative, index in the Window::widget_lookup.

Definition at line 1353 of file widget.cpp.

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

src/widget.cpp

Public Member Functions

Data Fields

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ NWidgetLayer()

Member Function Documentation

◆ AssignSizePosition()

◆ Draw()

◆ SetupSmallestSize()

Field Documentation

◆ index