OpenTTD Source  20241121-master-g67a0fccfad
NWidgetNewGRFDisplay Class Reference

Custom nested widget container for the NewGRF gui. More...

Inheritance diagram for NWidgetNewGRFDisplay:
NWidgetBase ZeroedMemoryAllocator

Public Member Functions

 NWidgetNewGRFDisplay (std::unique_ptr< NWidgetBase > &&avs, std::unique_ptr< NWidgetBase > &&acs, std::unique_ptr< NWidgetBase > &&inf)
 
void SetupSmallestSize (Window *w) override
 Compute smallest size needed by the widget. More...
 
void AssignSizePosition (SizingType sizing, int x, int y, uint given_width, uint given_height, bool rtl) override
 Assign size and position to the widget. More...
 
void FillWidgetLookup (WidgetLookup &widget_lookup) override
 Fill the Window::widget_lookup with pointers to nested widgets in the tree. More...
 
NWidgetCoreGetWidgetFromPos (int x, int y) override
 Retrieve a widget by its position. More...
 
void Draw (const Window *w) override
 Draw the widgets of the tree. More...
 
- Public Member Functions inherited from NWidgetBase
 NWidgetBase (WidgetType tp)
 Base class constructor. More...
 
void ApplyAspectRatio ()
 
virtual void AdjustPaddingForZoom ()
 
virtual NWidgetBaseGetWidgetOfType (WidgetType tp)
 Retrieve a widget by its type. More...
 
template<class NWID >
NWID * GetParentWidget ()
 Get parent widget of type NWID. More...
 
template<class NWID >
const NWID * GetParentWidget () const
 Get parent widget of type NWID. More...
 
virtual bool IsHighlighted () const
 
virtual TextColour GetHighlightColour () const
 
virtual void SetHighlighted ([[maybe_unused]] TextColour highlight_colour)
 
void SetPadding (uint8_t top, uint8_t right, uint8_t bottom, uint8_t left)
 Set additional space (padding) around the widget. More...
 
void SetPadding (const RectPadding &padding)
 Set additional space (padding) around the widget. More...
 
uint GetHorizontalStepSize (SizingType sizing) const
 Get the horizontal sizing step. More...
 
uint GetVerticalStepSize (SizingType sizing) const
 Get the vertical sizing step. More...
 
virtual void SetDirty (const Window *w) const
 Mark the widget as 'dirty' (in need of repaint). More...
 
Rect GetCurrentRect () const
 
- Public Member Functions inherited from ZeroedMemoryAllocator
void * operator new (size_t size)
 Memory allocator for a single class instance. More...
 
void * operator new[] (size_t size)
 Memory allocator for an array of class instances. More...
 
void operator delete (void *ptr)
 Memory release for a single class instance. More...
 
void operator delete[] (void *ptr)
 Memory release for an array of class instances. More...
 

Data Fields

std::unique_ptr< NWidgetBaseavs
 Widget with the available grfs list and buttons.
 
std::unique_ptr< NWidgetBaseacs
 Widget with the active grfs list and buttons.
 
std::unique_ptr< NWidgetBaseinf
 Info panel.
 
bool editable
 Editable status of the parent NewGRF window (if false, drop all widgets that make the window editable).
 
- 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.
 
NWidgetBaseparent
 Parent widget of this widget, automatically filled in when added to container.
 

Static Public Attributes

static const uint MAX_EXTRA_INFO_WIDTH = 150
 Maximal additional width given to the panel.
 
static const uint MIN_EXTRA_FOR_3_COLUMNS = 50
 Minimal additional width needed before switching to 3 columns.
 

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. More...
 

Detailed Description

Custom nested widget container for the NewGRF gui.

Depending on the space in the gui, it uses either

  • two column mode, put the acs and the avs underneath each other and the inf next to it, or
  • three column mode, put the avs, acs, and inf each in its own column.

Definition at line 1602 of file newgrf_gui.cpp.

Member Function Documentation

◆ AssignSizePosition()

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

Assign size and position to the widget.

Parameters
sizingType of resizing to perform.
xHorizontal offset of the widget relative to the left edge of the window.
yVertical offset of the widget relative to the top edge of the window.
given_widthWidth allocated to the widget.
given_heightHeight allocated to the widget.
rtlAdapt 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 1663 of file newgrf_gui.cpp.

◆ Draw()

void NWidgetNewGRFDisplay::Draw ( const Window w)
inlineoverridevirtual

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
wWindow that owns the tree.

Implements NWidgetBase.

Definition at line 1799 of file newgrf_gui.cpp.

◆ FillWidgetLookup()

void NWidgetNewGRFDisplay::FillWidgetLookup ( WidgetLookup widget_lookup)
inlineoverridevirtual

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

Parameters
widget_lookupThe WidgetLookup.

Implements NWidgetBase.

Definition at line 1782 of file newgrf_gui.cpp.

◆ GetWidgetFromPos()

NWidgetCore* NWidgetNewGRFDisplay::GetWidgetFromPos ( int  x,
int  y 
)
inlineoverridevirtual

Retrieve a widget by its position.

Parameters
xHorizontal position relative to the left edge of the window.
yVertical 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.

Implements NWidgetBase.

Definition at line 1789 of file newgrf_gui.cpp.

◆ SetupSmallestSize()

void NWidgetNewGRFDisplay::SetupSmallestSize ( Window w)
inlineoverridevirtual

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
wWindow 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 1620 of file newgrf_gui.cpp.

References ComputeMaxSize(), NewGRFWindow::editable, NWidgetBase::fill_x, NWidgetBase::fill_y, WidgetDimensions::hsep_wide, NWidgetBase::resize_x, NWidgetBase::resize_y, WidgetDimensions::scaled, NWidgetBase::smallest_x, and NWidgetBase::smallest_y.


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