OpenTTD Source  20241120-master-g6d3adc6169
NWidgetSmallmapDisplay Class Reference

Custom container class for displaying smallmap with a vertically resizing legend panel. More...

Inheritance diagram for NWidgetSmallmapDisplay:
NWidgetContainer NWidgetBase ZeroedMemoryAllocator

Public Member Functions

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...
 
- Public Member Functions inherited from NWidgetContainer
 NWidgetContainer (WidgetType tp)
 
void AdjustPaddingForZoom () override
 
void Add (std::unique_ptr< NWidgetBase > &&wid)
 Append widget wid to container. More...
 
void FillWidgetLookup (WidgetLookup &widget_lookup) override
 Fill the Window::widget_lookup with pointers to nested widgets in the tree. More...
 
void Draw (const Window *w) override
 Draw the widgets of the tree. More...
 
NWidgetCoreGetWidgetFromPos (int x, int y) override
 Retrieve a widget by its position. More...
 
bool IsEmpty ()
 Return whether the container is empty.
 
NWidgetBaseGetWidgetOfType (WidgetType tp) override
 Retrieve a widget by its type. More...
 
- Public Member Functions inherited from NWidgetBase
 NWidgetBase (WidgetType tp)
 Base class constructor. More...
 
void ApplyAspectRatio ()
 
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...
 

Private Attributes

const SmallMapWindowsmallmap_window
 Window manager instance.
 

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

Detailed Description

Custom container class for displaying smallmap with a vertically resizing legend panel.

The legend panel has a smallest height that depends on its width. Standard containers cannot handle this case.

Note
The container assumes it has two children, the first is the display, the second is the bar with legends and selection image buttons. Both children should be both horizontally and vertically resizable and horizontally fillable. The bar should have a minimal size with a zero-size legends display. Child padding is not supported.

Definition at line 1909 of file smallmap_gui.cpp.

Member Function Documentation

◆ AssignSizePosition()

void NWidgetSmallmapDisplay::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 1937 of file smallmap_gui.cpp.

◆ SetupSmallestSize()

void NWidgetSmallmapDisplay::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 1917 of file smallmap_gui.cpp.

References NWidgetContainer::children, NWidgetBase::fill_x, NWidgetBase::fill_y, SmallMapWindow::GetLegendHeight(), SmallMapWindow::GetMinLegendWidth(), SmallMapWindow::min_number_of_columns, NWidgetBase::resize_x, NWidgetBase::resize_y, NWidgetBase::SetupSmallestSize(), NWidgetBase::smallest_x, NWidgetBase::smallest_y, and smallmap_window.


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