NumericalEntry

NumericalEntry — Defines a widget to enter numerical values without any boundary or precision constrains.

Synopsis

                    NumericalEntry;
GtkWidget*          numericalEntry_new                  (double value);
double              numericalEntryGet_value             (NumericalEntry *numericalEntry);
void                numericalEntrySet_value             (NumericalEntry *numericalEntry,
                                                         double value);

Object Hierarchy

  GObject
   +----GInitiallyUnowned
         +----GtkObject
               +----GtkWidget
                     +----GtkEntry
                           +----NumericalEntry

Implemented Interfaces

NumericalEntry implements AtkImplementorIface, GtkBuildable, GtkCellEditable and GtkEditable.

Signals

  "value-changed"                                  : Run First / Action

Description

This widget is based on the GtkEntry widget but behaves more like a GtkSpinButton is fact. It is designed to enter numerical values, but without any boundary or precision constrains. One can use either plain or scientific notations.

Details

NumericalEntry

typedef struct _NumericalEntry NumericalEntry;

Short form for a NumericalEntry_struct structure.


numericalEntry_new ()

GtkWidget*          numericalEntry_new                  (double value);

A NumericalEntry widget is like a GtkEntry widget, but it only accepts double precision values (written in plain format, e.g. 1.23456, or scientific notation, e.g. 1.2345e6). The widget can't be blank and there is always a value printed in it. If the user erase the current value or enter something that is not a recognised double precision value, the widget returns to its previous valid value.

value :

the initial value.

Returns :

a newly created NumericalEntry widget.

numericalEntryGet_value ()

double              numericalEntryGet_value             (NumericalEntry *numericalEntry);

You can get the value contained in the given numericalEntry using this method.

numericalEntry :

a NumericalEntry widget.

Returns :

the double precision value printed in the NumericalEntry.

numericalEntrySet_value ()

void                numericalEntrySet_value             (NumericalEntry *numericalEntry,
                                                         double value);

Use this method to set the value for the given numericalEntry widget.

numericalEntry :

a NumericalEntry widget ;

value :

a double precision value.

Signal Details

The "value-changed" signal

void                user_function                      (NumericalEntry *entry,
                                                        gdouble         oldValue,
                                                        gpointer        user_data)      : Run First / Action

This signal is emitted when a new valid numerical value is entered.

entry :

the NumericalEntry that emits the signal ;

oldValue :

the previous value.

user_data :

user data set when the signal handler was connected.

Since 3.1