Ewl_Spinner: A Numerical Value Entry

Detailed Description

Provides a field for entering numerical values, along with buttons to increment and decrement the value.

Remarks:: Inherits from Ewl_Range.

Tutorial


Data Structures
struct	Ewl_Spinner
	Inherits from Ewl_Range and extends to provide a spinner widget. More...
Defines
#define	EWL_SPINNER(spinner) ((Ewl_Spinner *) spinner)
#define	EWL_SPINNER_IS(w) (ewl_widget_type_is(EWL_WIDGET(w), EWL_SPINNER_TYPE))
#define	EWL_SPINNER_TYPE "spinner"
Typedefs
typedef Ewl_Spinner	Ewl_Spinner
Functions
void	ewl_spinner_cb_child_resize (Ewl_Container c, Ewl_Widget w, int size, Ewl_Orientation o)
void	ewl_spinner_cb_child_show (Ewl_Container c, Ewl_Widget w)
void	ewl_spinner_cb_configure (Ewl_Widget widget, void ev_data, void *user_data)
void	ewl_spinner_cb_decrease_value (Ewl_Widget widget, void ev_data, void *user_data)
void	ewl_spinner_cb_destroy (Ewl_Widget w, void ev_data, void *user_data)
void	ewl_spinner_cb_focus_out (Ewl_Widget w, void ev_data, void *user_data)
void	ewl_spinner_cb_increase_value (Ewl_Widget widget, void ev_data, void *user_data)
void	ewl_spinner_cb_key_down (Ewl_Widget widget, void ev_data, void *user_data)
void	ewl_spinner_cb_realize (Ewl_Widget widget, void ev_data, void *user_data)
void	ewl_spinner_cb_value_changed (Ewl_Widget widget, void ev_data, void *user_data)
void	ewl_spinner_cb_value_stop (Ewl_Widget w, void ev_data, void *user_data)
void	ewl_spinner_cb_wheel (Ewl_Widget w, void ev_data, void *user_data)
unsigned char	ewl_spinner_digits_get (Ewl_Spinner *s)
	This will retrieve the number of digits displayed by the spinner.
void	ewl_spinner_digits_set (Ewl_Spinner *s, unsigned char digits)
	Set the number of digits displayed by a spinner.
int	ewl_spinner_init (Ewl_Spinner *s)
	Initialize a spinner to default values and callbacks.
Ewl_Widget *	ewl_spinner_new (void)
	Allocate a new spinner widget.

Define Documentation

#define EWL_SPINNER ( spinner ) ((Ewl_Spinner *) spinner)

Typecasts a pointer to an Ewl_Spinner pointer.

#define EWL_SPINNER_IS ( w ) (ewl_widget_type_is(EWL_WIDGET(w), EWL_SPINNER_TYPE))

Returns TRUE if the widget is an Ewl_Spinner, FALSE otherwise

#define EWL_SPINNER_TYPE "spinner"

The type name for the Ewl_Spinner widget

Typedef Documentation

typedef struct Ewl_Spinner Ewl_Spinner

A combination of entry and increment/decrement buttons for adjusting numerical values.

Function Documentation

void ewl_spinner_cb_child_resize	(	Ewl_Container *	c,
		Ewl_Widget *	w,
		int	size,
		Ewl_Orientation	o
	)

void ewl_spinner_cb_child_show	(	Ewl_Container *	c,
		Ewl_Widget *	w
	)

void ewl_spinner_cb_configure	(	Ewl_Widget *	widget,
		void *	ev_data,
		void *	user_data
	)

void ewl_spinner_cb_decrease_value	(	Ewl_Widget *	widget,
		void *	ev_data,
		void *	user_data
	)

void ewl_spinner_cb_destroy	(	Ewl_Widget *	w,
		void *	ev_data,
		void *	user_data
	)

void ewl_spinner_cb_focus_out	(	Ewl_Widget *	w,
		void *	ev_data,
		void *	user_data
	)

void ewl_spinner_cb_increase_value	(	Ewl_Widget *	widget,
		void *	ev_data,
		void *	user_data
	)

void ewl_spinner_cb_key_down	(	Ewl_Widget *	widget,
		void *	ev_data,
		void *	user_data
	)

void ewl_spinner_cb_realize	(	Ewl_Widget *	widget,
		void *	ev_data,
		void *	user_data
	)

void ewl_spinner_cb_value_changed	(	Ewl_Widget *	widget,
		void *	ev_data,
		void *	user_data
	)

void ewl_spinner_cb_value_stop	(	Ewl_Widget *	w,
		void *	ev_data,
		void *	user_data
	)

void ewl_spinner_cb_wheel	(	Ewl_Widget *	w,
		void *	ev_data,
		void *	user_data
	)

unsigned char ewl_spinner_digits_get ( Ewl_Spinner * s )

This will retrieve the number of digits displayed by the spinner.

Parameters:

s,:

The spinnner to get the number of digits displayed

Returns:: Returns the number of digits displayed by the spinner

void ewl_spinner_digits_set	(	Ewl_Spinner *	s,
		unsigned char	digits
	)

Set the number of digits displayed by a spinner.

Parameters:

	s,:	the widget to change the number of digits displayed
	digits,:	the number of digits to display for the spinner s

Returns:: Returns no value.

Changes the digits displayed by s to digits.

int ewl_spinner_init ( Ewl_Spinner * s )

Initialize a spinner to default values and callbacks.

Parameters:

s,:

the spinner to initialize

Returns:: Returns TRUE on success or FALSE on failure

Sets the fields and callbacks of the spinner s their default values.

Ewl_Widget* ewl_spinner_new ( void )

Allocate a new spinner widget.

Returns:: Returns a new spinner widget on success, NULL on failure.

Ewl_Spinner: A Numerical Value Entry

Detailed Description

Tutorial

Data Structures

Defines

Typedefs

Functions

Define Documentation

Typedef Documentation

Function Documentation