Matrix container with implicitly equal sized (virtual) sub-widgets. More...

#include <widget_type.h>

Inheritance diagram for NWidgetMatrix:

Public Member Functions
	NWidgetMatrix (Colours colour, WidgetID index)

void	SetClicked (int clicked)
	Sets the clicked element in the matrix.

void	SetCount (int count)
	Set the number of elements in this matrix.

void	SetScrollbar (Scrollbar *sb)
	Assign a scrollbar to this matrix.

int	GetCurrentElement () const
	Get current element.

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	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.

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

Public Member Functions inherited from NWidgetPIPContainer
	NWidgetPIPContainer (WidgetType tp, NWidContainerFlags flags=NC_NONE)

void	AdjustPaddingForZoom () override

void	SetPIP (uint8_t pip_pre, uint8_t pip_inter, uint8_t pip_post)
	Set additional pre/inter/post space for the container.

void	SetPIPRatio (uint8_t pip_ratio_pre, uint8_t pip_ratio_inter, uint8_t pip_rato_post)
	Set additional pre/inter/post space for the container.

Public Member Functions inherited from NWidgetContainer
	NWidgetContainer (WidgetType tp)

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

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.

Protected Attributes
const WidgetID	index
	If non-negative, index in the Window::widget_lookup.

Colours	colour
	Colour of this widget.

int	clicked
	The currently clicked element.

int	count
	Amount of valid elements.

int	current_element
	The element currently being processed.

Scrollbar *	sb
	The scrollbar we're associated with.

Protected Attributes inherited from NWidgetPIPContainer
NWidContainerFlags	flags
	Flags of the container.

uint8_t	pip_pre
	Amount of space before first widget.

uint8_t	pip_inter
	Amount of space between widgets.

uint8_t	pip_post
	Amount of space after last widget.

uint8_t	pip_ratio_pre
	Ratio of remaining space before first widget.

uint8_t	pip_ratio_inter
	Ratio of remaining space between widgets.

uint8_t	pip_ratio_post
	Ratio of remaining space after last widget.

uint8_t	uz_pip_pre
	Unscaled space before first widget.

uint8_t	uz_pip_inter
	Unscaled space between widgets.

uint8_t	uz_pip_post
	Unscaled space after last widget.

uint8_t	gaps
	Number of gaps between widgets.

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

Private Member Functions
void	GetScrollOffsets (int &start_x, int &start_y, int &base_offs_x, int &base_offs_y)
	Get the different offsets that are influenced by scrolling.

Private Attributes
int	widget_w
	The width of the child widget including inter spacing.

int	widget_h
	The height of the child widget including inter spacing.

int	widgets_x
	The number of visible widgets in horizontal direction.

int	widgets_y
	The number of visible widgets in vertical direction.

Additional Inherited Members
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.

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

Detailed Description

Matrix container with implicitly equal sized (virtual) sub-widgets.

This widget must have exactly one sub-widget. After that this sub-widget is used to draw all of the data within the matrix piece by piece. DrawWidget and OnClick calls will be done to that sub-widget, where the 16 high bits are used to encode the index into the matrix.

Definition at line 597 of file widget_type.h.

Constructor & Destructor Documentation

◆ NWidgetMatrix()

NWidgetMatrix::NWidgetMatrix	(	Colours	colour,
		WidgetID	index
	)

Definition at line 1867 of file widget.cpp.

Member Function Documentation

◆ AssignSizePosition()

void NWidgetMatrix::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 1953 of file widget.cpp.

References CeilDiv(), NWidgetContainer::children, count, NWidgetBase::current_x, NWidgetBase::current_y, NWidgetPIPContainer::pip_inter, NWidgetPIPContainer::pip_post, NWidgetPIPContainer::pip_pre, NWidgetBase::pos_x, NWidgetBase::pos_y, SetCount(), NWidgetBase::smallest_x, NWidgetBase::smallest_y, widget_h, widget_w, widgets_x, and widgets_y.

◆ Draw()

void NWidgetMatrix::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 2013 of file widget.cpp.

References _current_text_dir, NWidgetResizeBase::AssignSizePosition(), NWidgetContainer::children, clicked, colour, count, current_element, NWidgetBase::current_x, NWidgetBase::current_y, NWidgetBase::Draw(), FillDrawPixelInfo(), GetColourGradient(), GetScrollOffsets(), GfxFillRect(), NWidgetPIPContainer::pip_post, NWidgetPIPContainer::pip_pre, NWidgetBase::pos_x, NWidgetBase::pos_y, NWidgetCore::SetLowered(), NWidgetBase::smallest_x, NWidgetBase::smallest_y, ST_RESIZE, TD_RTL, widget_h, widget_w, widgets_x, and widgets_y.

◆ FillWidgetLookup()

void NWidgetMatrix::FillWidgetLookup ( WidgetLookup & widget_lookup )

overridevirtual

Fill the Window::widget_lookup with pointers to nested widgets in the tree.

Parameters

widget_lookup The WidgetLookup.

Reimplemented from NWidgetContainer.

Definition at line 1977 of file widget.cpp.

References NWidgetContainer::FillWidgetLookup(), and index.

◆ GetCurrentElement()

int NWidgetMatrix::GetCurrentElement ( ) const

Get current element.

Returns: index of current element.

Definition at line 1926 of file widget.cpp.

References current_element.

Referenced by BuildObjectWindow::DrawWidget().

◆ GetScrollOffsets()

void NWidgetMatrix::GetScrollOffsets	(	int &	start_x,
		int &	start_y,
		int &	base_offs_x,
		int &	base_offs_y
	)

private

Get the different offsets that are influenced by scrolling.

Parameters

[out]	start_x	The start position in columns (index of the left-most column, swapped in RTL).
[out]	start_y	The start position in rows.
[out]	base_offs_x	The base horizontal offset in pixels (X position of the column start_x).
[out]	base_offs_y	The base vertical offset in pixels (Y position of the column start_y).

Definition at line 2068 of file widget.cpp.

References _current_text_dir, Scrollbar::GetPosition(), Scrollbar::IsVertical(), sb, TD_RTL, widget_h, widget_w, and widgets_x.

Referenced by Draw(), and GetWidgetFromPos().

◆ GetWidgetFromPos()

NWidgetCore * NWidgetMatrix::GetWidgetFromPos	(	int	x,
		int	y
	)

overridevirtual

Retrieve a widget by its position.

Parameters

x	Horizontal position relative to the left edge of the window.
y	Vertical position relative to the top edge of the window.

Returns: Returns the deepest nested widget that covers the given position, or nullptr if no widget can be found.

Reimplemented from NWidgetContainer.

Definition at line 1983 of file widget.cpp.

References _current_text_dir, NWidgetResizeBase::AssignSizePosition(), NWidgetContainer::children, count, current_element, NWidgetBase::current_x, NWidgetBase::current_y, GetScrollOffsets(), NWidgetCore::GetWidgetFromPos(), IsInsideBS(), NWidgetPIPContainer::pip_inter, NWidgetPIPContainer::pip_post, NWidgetPIPContainer::pip_pre, NWidgetBase::pos_x, NWidgetBase::pos_y, NWidgetBase::smallest_x, NWidgetBase::smallest_y, ST_RESIZE, TD_RTL, widget_h, widget_w, and widgets_x.

◆ SetClicked()

void NWidgetMatrix::SetClicked ( int clicked )

Sets the clicked element in the matrix.

Parameters

clicked The clicked element.

Definition at line 1876 of file widget.cpp.

References clicked, Scrollbar::GetPosition(), NWidgetPIPContainer::pip_inter, sb, Scrollbar::ScrollTowards(), widget_h, and widgets_x.

◆ SetCount()

void NWidgetMatrix::SetCount ( int count )

Set the number of elements in this matrix.

Note: Updates the number of elements/capacity of the real scrollbar.

Parameters

count The number of elements.

Definition at line 1893 of file widget.cpp.

References CeilDiv(), NWidgetContainer::children, count, NWidgetBase::current_x, NWidgetBase::current_y, Scrollbar::IsVertical(), NWidgetPIPContainer::pip_inter, NWidgetPIPContainer::pip_post, NWidgetPIPContainer::pip_pre, sb, Scrollbar::SetCapacity(), Scrollbar::SetCount(), Scrollbar::SetStepSize(), widget_h, widget_w, widgets_x, and widgets_y.

Referenced by AssignSizePosition().

◆ SetScrollbar()

void NWidgetMatrix::SetScrollbar ( Scrollbar * sb )

Assign a scrollbar to this matrix.

Parameters

sb	The scrollbar to assign to us.

Definition at line 1917 of file widget.cpp.

References sb.

◆ SetupSmallestSize()

void NWidgetMatrix::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 1931 of file widget.cpp.

References NWidgetContainer::children, NWidgetBase::fill_x, NWidgetBase::fill_y, index, NWidgetBase::padding, NWidgetPIPContainer::pip_inter, NWidgetPIPContainer::pip_post, NWidgetPIPContainer::pip_pre, NWidgetBase::resize_x, NWidgetBase::resize_y, NWidgetBase::smallest_x, NWidgetBase::smallest_y, and Window::UpdateWidgetSize().

Field Documentation

◆ clicked

int NWidgetMatrix::clicked

protected

The currently clicked element.

Definition at line 615 of file widget_type.h.

Referenced by Draw(), and SetClicked().

◆ colour

Colours NWidgetMatrix::colour

protected

Colour of this widget.

Definition at line 614 of file widget_type.h.

Referenced by Draw().

◆ count

int NWidgetMatrix::count

protected

Amount of valid elements.

Definition at line 616 of file widget_type.h.

Referenced by AssignSizePosition(), Draw(), GetWidgetFromPos(), and SetCount().

◆ current_element

int NWidgetMatrix::current_element

protected

The element currently being processed.

Definition at line 617 of file widget_type.h.

Referenced by Draw(), GetCurrentElement(), and GetWidgetFromPos().

◆ index

const WidgetID NWidgetMatrix::index

protected

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

Definition at line 613 of file widget_type.h.

Referenced by FillWidgetLookup(), and SetupSmallestSize().

◆ sb

Scrollbar* NWidgetMatrix::sb

protected

The scrollbar we're associated with.

Definition at line 618 of file widget_type.h.

Referenced by GetScrollOffsets(), SetClicked(), SetCount(), and SetScrollbar().

◆ widget_h

int NWidgetMatrix::widget_h

private

The height of the child widget including inter spacing.

Definition at line 621 of file widget_type.h.

Referenced by AssignSizePosition(), Draw(), GetScrollOffsets(), GetWidgetFromPos(), SetClicked(), and SetCount().

◆ widget_w

int NWidgetMatrix::widget_w

private

The width of the child widget including inter spacing.

Definition at line 620 of file widget_type.h.

Referenced by AssignSizePosition(), Draw(), GetScrollOffsets(), GetWidgetFromPos(), and SetCount().

◆ widgets_x

int NWidgetMatrix::widgets_x

private

The number of visible widgets in horizontal direction.

Definition at line 622 of file widget_type.h.

Referenced by AssignSizePosition(), Draw(), GetScrollOffsets(), GetWidgetFromPos(), SetClicked(), and SetCount().

◆ widgets_y

int NWidgetMatrix::widgets_y

private

The number of visible widgets in vertical direction.

Definition at line 623 of file widget_type.h.

Referenced by AssignSizePosition(), Draw(), and SetCount().

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

src/widget_type.h
src/widget.cpp

Public Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ NWidgetMatrix()

Member Function Documentation

◆ AssignSizePosition()

◆ Draw()

◆ FillWidgetLookup()

◆ GetCurrentElement()

◆ GetScrollOffsets()

◆ GetWidgetFromPos()

◆ SetClicked()

◆ SetCount()

◆ SetScrollbar()

◆ SetupSmallestSize()

Field Documentation

◆ clicked

◆ colour

◆ count

◆ current_element

◆ index

◆ sb

◆ widget_h

◆ widget_w

◆ widgets_x

◆ widgets_y