hi::v1::default_text_field_delegate< T > Class Template Reference

#include <hikogui/widgets/text_field_delegate.hpp>

Inheritance diagram for hi::v1::default_text_field_delegate< T >:

Public Types
using	value_type = T
using	value_type = T
Public Types inherited from hi::v1::text_field_delegate
using	notifier_type = notifier<>
using	callback_token = notifier_type::callback_token
using	callback_proto = notifier_type::callback_proto

Public Member Functions
	default_text_field_delegate (forward_of< observer< value_type > > auto &&value) noexcept
std::optional< label >	validate (text_field_widget &sender, gstring const &text) noexcept override
	Validate the text field.
gstring	text (text_field_widget &sender) noexcept override
	Get the text to show in the text field.
void	set_text (text_field_widget &sender, gstring text) noexcept override
	default_text_field_delegate (forward_of< observer< value_type > > auto &&value) noexcept
label	validate (text_field_widget &sender, gstring const &text) noexcept override
	Validate the text field.
gstring	text (text_field_widget &sender) noexcept override
	Get the text to show in the text field.
void	set_text (text_field_widget &sender, gstring const &text) noexcept override
	Set the text as entered by the user.
Public Member Functions inherited from hi::v1::text_field_delegate
virtual void	init (text_field_widget const &sender) noexcept
virtual void	deinit (text_field_widget const &sender) noexcept
callback_token	subscribe (forward_of< callback_proto > auto &&callback, callback_flags flags=callback_flags::synchronous) noexcept

Data Fields
observer< value_type >	value

Detailed Description

template<std::integral T>
class hi::v1::default_text_field_delegate< T >

A default text delegate specialization for std::integral<T>.

A default text delegate specialization for std::floating_point<T>.

This delegate makes it possible for a text-field to edit an integral value. It will automatically validate and convert between the integral value and the text representation.

Template Parameters

T	An integral type

This delegate makes it possible for a text-field to edit an floating point value. It will automatically validate and convert between the floating point value and the text representation.

Template Parameters

T	An floating point type

Member Function Documentation

set_text()

template<std::integral T>

void hi::v1::default_text_field_delegate< T >::set_text ( text_field_widget & sender, gstring const & text )

inlineoverridevirtualnoexcept

Set the text as entered by the user.

When the user causes a text field to commit, by pressing enter, tab, or clicking outside the field and when the text was validated the widget will call this function to commit the text with the delegate.

Precondition

text Must have been validated as correct.

Parameters

sender	The widget that called this function.
text	The text entered by the user.

Reimplemented from hi::v1::text_field_delegate.

text() [1/2]

template<std::integral T>

gstring hi::v1::default_text_field_delegate< T >::text ( text_field_widget & sender )

inlineoverridevirtualnoexcept

Get the text to show in the text field.

When the user is not editing the text the text-field will request what to show using this function.

Parameters

sender

The widget that called this function.

Returns

The text to show in the text field.

Reimplemented from hi::v1::text_field_delegate.

text() [2/2]

template<std::integral T>

gstring hi::v1::default_text_field_delegate< T >::text ( text_field_widget & sender )

inlineoverridevirtualnoexcept

Get the text to show in the text field.

When the user is not editing the text the text-field will request what to show using this function.

Parameters

sender

The widget that called this function.

Returns

The text to show in the text field.

Reimplemented from hi::v1::text_field_delegate.

validate() [1/2]

template<std::integral T>

std::optional< label > hi::v1::default_text_field_delegate< T >::validate ( text_field_widget & sender, gstring const & text )

inlineoverridevirtualnoexcept

Validate the text field.

Parameters

sender	The widget that called this function.
text	The text entered by the user into the text field.

Returns

no-value when valid, or a label to display to the user when invalid.

Reimplemented from hi::v1::text_field_delegate.

validate() [2/2]

template<std::integral T>

label hi::v1::default_text_field_delegate< T >::validate ( text_field_widget & sender, gstring const & text )

inlineoverridevirtualnoexcept

Validate the text field.

Parameters

sender	The widget that called this function.
text	The text entered by the user into the text field.

Returns

no-value when valid, or a label to display to the user when invalid.

Reimplemented from hi::v1::text_field_delegate.

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

• hikogui/src/hikogui/widgets/text_field_delegate.hpp