hi::v1::tab_widget Class Reference

#include <hikogui/widgets/tab_widget.hpp>

Inheritance diagram for hi::v1::tab_widget:

Public Types
using	super = widget
using	delegate_type = tab_delegate

Public Member Functions
	tab_widget (widget *parent, std::shared_ptr< delegate_type > delegate) noexcept
	Construct a tab widget with a delegate.
	tab_widget (widget *parent, different_from< std::shared_ptr< delegate_type > > auto &&value) noexcept
	Construct a tab widget with an observer value.
template<typename WidgetType, typename Key, typename... Args>
WidgetType &	make_widget (Key const &key, Args &&...args)
	Make and add a child widget.
Public Member Functions inherited from hi::v1::widget
	widget (widget *parent) noexcept
	widget (const widget &)=delete
widget &	operator= (const widget &)=delete
	widget (widget &&)=delete
widget &	operator= (widget &&)=delete
generator< widget_intf & >	children (bool include_invisible) noexcept override
	Get a list of child widgets.
hitbox	hitbox_test (point2 position) const noexcept override
	Find the widget that is under the mouse cursor.
virtual hitbox	hitbox_test_from_parent (point2 position) const noexcept
	Call hitbox_test from a parent widget.
virtual hitbox	hitbox_test_from_parent (point2 position, hitbox sibling_hitbox) const noexcept
	Call hitbox_test from a parent widget.
bool	accepts_keyboard_focus (keyboard_focus_group group) const noexcept override
	Check if the widget will accept keyboard focus.
box_constraints	update_constraints () noexcept override
	Update the constraints of the widget.
void	set_layout (widget_layout const &context) noexcept override
	Update the internal layout of the widget.
widget_layout const &	layout () const noexcept override
	Get the current layout for this widget.
void	draw (draw_context const &context) noexcept override
	Draw the widget.
bool	process_event (gui_event const &event) const noexcept override
	Send a event to the window.
void	request_redraw () const noexcept override
	Request the widget to be redrawn on the next frame.
bool	handle_event (gui_event const &event) noexcept override
	Handle command.
bool	handle_event_recursive (gui_event const &event, std::vector< widget_id > const &reject_list=std::vector< widget_id >{}) noexcept override
	Handle command recursive.
widget_id	find_first_widget (keyboard_focus_group group) const noexcept override
widget_id	find_last_widget (keyboard_focus_group group) const noexcept override
bool	is_first (keyboard_focus_group group) const noexcept
	Is this widget the first widget in the parent container.
bool	is_last (keyboard_focus_group group) const noexcept
	Is this widget the last widget in the parent container.
void	scroll_to_show (hi::aarectangle rectangle) noexcept override
	Scroll to show the given rectangle on the window.
void	set_window (gui_window *window) noexcept override
	Set the window for this tree of widgets.
gui_window *	window () const noexcept override
	Get the window that the widget is owned by.
hi::theme const &	theme () const noexcept
gfx_surface const *	surface () const noexcept
virtual color	background_color () const noexcept
virtual color	foreground_color () const noexcept
virtual color	focus_color () const noexcept
virtual color	accent_color () const noexcept
virtual color	label_color () const noexcept
virtual generator< widget_intf const & >	children (bool include_invisible) const noexcept final
	Get a list of child widgets.
void	scroll_to_show () noexcept
	Scroll to show the important part of the widget.
Public Member Functions inherited from hi::v1::widget_intf
	widget_intf (widget_intf *parent) noexcept
std::vector< widget_id >	parent_chain () const noexcept
	Get a list of parents of a given widget.
void	scroll_to_show () noexcept
	Scroll to show the important part of the widget.

Data Fields
std::shared_ptr< delegate_type >	delegate
Data Fields inherited from hi::v1::widget
observer< widget_mode >	mode = widget_mode::enabled
	The widget mode.
observer< bool >	hover = false
	Mouse cursor is hovering over the widget.
observer< bool >	focus = false
	The widget has keyboard focus.
int	semantic_layer = 0
	The draw layer of the widget.
int	logical_layer = 0
	The logical layer of the widget.
observer< extent2 >	minimum = extent2{}
	The minimum size this widget is allowed to be.
observer< extent2 >	maximum = extent2::large()
	The maximum size this widget is allowed to be.
Data Fields inherited from hi::v1::widget_intf
widget_id	id = {}
	The numeric identifier of a widget.
widget_intf *	parent = nullptr
	Pointer to the parent widget.

Detailed Description

A graphical element that shows only one of a predefined set of mutually exclusive child widgets.

A tab widget is generally controlled by a toolbar_tab_button_widget or another selection widget.

In the following example we create three tabs on the window which observes a value controlled by a set of toolbar tab buttons. Each tab is configured with a different value: 0, 1 and 2.

    auto& tab_view = widget->content().make_widget<tab_widget>("A1", value);
    tab_view.make_widget<label_widget>(0, txt("one"), alignment::middle_center());
    tab_view.make_widget<label_widget>(1, txt("two"), alignment::middle_center());
    tab_view.make_widget<label_widget>(2, txt("three"), alignment::middle_center());

Note

A tab_button is not directly controlled by a toolbar_tab_button_widget. This is accomplished by sharing a delegate or a observer between the toolbar tab button and the tab widget.

Constructor & Destructor Documentation

tab_widget() [1/2]

hi::v1::tab_widget::tab_widget ( widget * parent, std::shared_ptr< delegate_type > delegate )

inlinenoexcept

Construct a tab widget with a delegate.

Parameters

parent	The owner of this widget.
delegate	The delegate that will control this widget.

tab_widget() [2/2]

hi::v1::tab_widget::tab_widget ( widget * parent, different_from< std::shared_ptr< delegate_type > > auto && value )

inlinenoexcept

Construct a tab widget with an observer value.

Parameters

parent	The owner of this widget.
value	The value or observer value to monitor for which child widget to display.

Member Function Documentation

make_widget()

template<typename WidgetType, typename Key, typename... Args>

WidgetType & hi::v1::tab_widget::make_widget ( Key const & key, Args &&... args )

inline

Make and add a child widget.

Precondition

A widget with the same value must not have been added before.

Template Parameters

WidgetType	The type of the widget to create.
Key	The type of the key, must be convertible to std::size_t.

Parameters

key	The value used as a key to select this newly added widget.
args	The arguments to pass to the constructor of widget to add.

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

• hikogui/src/hikogui/widgets/tab_widget.hpp