bin Struct Reference

Inheritance diagram for bin:

Collaboration diagram for bin:

Public Member Functions
	bin (widget_ptr child)
void	on_draw (draw_context &dc, selection_context const &sc) const override
void	on_mouse_down_event (mouse_down_event const &me) override
void	on_mouse_up_event (mouse_up_event const &me) override
void	on_mouse_move_event (mouse_move_event const &e) override
void	on_box_allocated () override=0
widget *	find_selectable (navigation_type nt, point center) override
widget *	navigate_selectable_from_children (navigation_type nt, widget *w, point center) override
size_hint	get_size_hint (int width, int height) const override
std::vector< widget * >	get_children () override
std::vector< widget const * >	get_children () const override
Public Member Functions inherited from widget
	widget (widget const &)=delete
widget &	operator= (widget const &)=delete
SDL_Rect const &	get_box () const
context_info const &	get_context_info () const
void	set_context_info (context_info const &ci)
void	set_parent (widget *parent)
virtual void	on_child_dirty (widget *child)
virtual std::vector< widget * >	get_visible_children ()
virtual std::vector< widget const * >	get_visible_children () const
void	clear_dirty ()
void	mark_dirty ()
void	mark_child_dirty (widget *child)
void	draw (draw_context &dc, selection_context const &sc) const
void	draw_dirty (draw_context &dc, selection_context const &sc) const
virtual void	on_key_event (key_event const &e)
virtual void	on_activate ()
void	apply_layout (SDL_Rect box)
virtual bool	can_use_intermediate_size () const
virtual widget *	navigate_selectable (navigation_type nt, point center)
virtual void	on_select ()
virtual void	on_unselect ()

Protected Attributes
widget_ptr	_child
Protected Attributes inherited from widget
widget *	_parent

Additional Inherited Members
Protected Member Functions inherited from widget
std::optional< swipe_info >	get_swipe_info_with_context_info (mouse_up_event const &e)
widget *	navigate_selectable_parent (navigation_type nt, point center)

Member Function Documentation

find_selectable()

widget* bin::find_selectable ( navigation_type  nt, point  center  )

overridevirtual

Should return the first selectable widget according to the navigation type. If a widget is selectable it should return itself. Containers should return the first selectable child widget. Otherwise nullptr is returned.

The point may serve as a hint to provide a more accurate selection.

Reimplemented from widget.

get_children()

std::vector<widget *> bin::get_children ( )

overridevirtual

Return child widgets in Z-order. Should be implemented by containers.

Reimplemented from widget.

get_size_hint()

size_hint bin::get_size_hint ( int  width, int  height  ) const

overridevirtual

Computes the widgets preferred minimal and natural size. When given a specific width or height the widget might use that to give a more accurate size.

Implements widget.

Reimplemented in padding.

navigate_selectable_from_children()

widget* bin::navigate_selectable_from_children ( navigation_type  nt, widget *  w, point  center  )

overridevirtual

When a child widget has exhausted its selectable widgets it may ask its parent for the next widget according to the navigation. The coordinates of the widget are provided to get a more accurate result for some navigation types (i.e. 2-dimensional). The widget passed has to be the direct child, otherwise the parent is not able to find it.

Only containers should implement this.

Reimplemented from widget.

on_box_allocated()

void bin::on_box_allocated ( )

overridepure virtual

Refresh layout with existing box. This should not be called if the widget does not have a box already. Otherwise no space is allocated.

Reimplemented from widget.

Implemented in padding.

on_draw()

void bin::on_draw ( draw_context &  dc, selection_context const &  sc  ) const

overridevirtual

Draw the widget. No children should be drawn here.

Implements widget.

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

• /home/moritz/Programmieren/C++/libwtk-sdl2/include/bin.hpp