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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 struct 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_Widgetewl_spinner_new (void)
 Allocate a new spinner widget.

Define Documentation

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

Returns TRUE if the widget is an Ewl_Spinner, FALSE otherwise


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_destroy ( Ewl_Widget w,
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 
)

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

References DCHECK_PARAM_PTR_RET, DCHECK_TYPE_RET, DENTER_FUNCTION, digits, DLEVEL_STABLE, DRETURN_INT, and EWL_SPINNER_TYPE.

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.

References DCHECK_PARAM_PTR, DCHECK_TYPE, DENTER_FUNCTION, digits, DLEAVE_FUNCTION, DLEVEL_STABLE, and EWL_SPINNER_TYPE.

Referenced by ewl_colorpicker_init().

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.

References DCHECK_PARAM_PTR_RET, decrement, DENTER_FUNCTION, digits, DLEVEL_STABLE, DRETURN_INT, entry, ewl_button_new(), ewl_callback_append(), EWL_CALLBACK_CONFIGURE, ewl_callback_del(), EWL_CALLBACK_DESTROY, EWL_CALLBACK_FOCUS_IN, EWL_CALLBACK_FOCUS_OUT, EWL_CALLBACK_KEY_DOWN, EWL_CALLBACK_MOUSE_DOWN, EWL_CALLBACK_MOUSE_UP, EWL_CALLBACK_MOUSE_WHEEL, ewl_callback_prepend(), EWL_CALLBACK_REALIZE, EWL_CALLBACK_VALUE_CHANGED, EWL_CONTAINER, ewl_container_cb_widget_focus_in(), ewl_container_cb_widget_focus_out(), ewl_container_child_append(), ewl_container_resize_notify_set(), ewl_container_show_notify_set(), ewl_entry_cb_key_down(), ewl_entry_new(), EWL_FLAG_ALIGN_CENTER, EWL_FLAG_ALIGN_LEFT, EWL_FLAG_FILL_HFILL, EWL_FLAG_FILL_HSHRINK, EWL_FLAG_FILL_NONE, EWL_OBJECT, ewl_object_alignment_set(), ewl_object_fill_policy_set(), EWL_RANGE, ewl_range_init(), ewl_spinner_cb_child_resize(), ewl_spinner_cb_child_show(), ewl_spinner_cb_configure(), ewl_spinner_cb_decrease_value(), ewl_spinner_cb_destroy(), ewl_spinner_cb_focus_out(), ewl_spinner_cb_increase_value(), ewl_spinner_cb_key_down(), ewl_spinner_cb_realize(), ewl_spinner_cb_value_changed(), ewl_spinner_cb_value_stop(), ewl_spinner_cb_wheel(), EWL_SPINNER_TYPE, EWL_TEXT, ewl_text_text_set(), ewl_vbox_new(), EWL_WIDGET, ewl_widget_appearance_set(), ewl_widget_inherit(), ewl_widget_internal_set(), ewl_widget_show(), increment, and vbox.

Referenced by ewl_spinner_new().

Ewl_Widget* ewl_spinner_new ( void   ) 

Allocate a new spinner widget.

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

References DENTER_FUNCTION, DLEVEL_STABLE, DRETURN_PTR, ewl_spinner_init(), EWL_WIDGET, ewl_widget_destroy(), and NEW.

Referenced by ewl_colorpicker_init().


Copyright © Enlightenment.org

Enlightened Widget Library Documentation Generated: Sat May 17 16:51:11 2008