ref: a0056875827f1e6efb74834cc8ac051ecc2d765c
dir: /textscreen/txt_checkbox.h/
//
// Copyright(C) 2005-2014 Simon Howard
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
#ifndef TXT_CHECKBOX_H
#define TXT_CHECKBOX_H
/**
* @file txt_checkbox.h
*
* Checkbox widget.
*/
/**
* Checkbox widget.
*
* A checkbox is used to control boolean values that may be either on
* or off. The widget has a label that is displayed to the right of
* the checkbox indicator. The widget tracks an integer variable;
* if the variable is non-zero, the checkbox is checked, while if it
* is zero, the checkbox is unchecked. It is also possible to
* create "inverted" checkboxes where this logic is reversed.
*
* When a checkbox is changed, it emits the "changed" signal.
*/
typedef struct txt_checkbox_s txt_checkbox_t;
#include "txt_widget.h"
struct txt_checkbox_s
{
txt_widget_t widget;
char *label;
int *variable;
int inverted;
};
/**
* Create a new checkbox.
*
* @param label The label for the new checkbox (UTF-8 format).
* @param variable Pointer to the variable containing this checkbox's
* value.
* @return Pointer to the new checkbox.
*/
txt_checkbox_t *TXT_NewCheckBox(const char *label, int *variable);
/**
* Create a new inverted checkbox.
*
* An inverted checkbox displays the opposite of a normal checkbox;
* where it would be checked, it appears unchecked, and vice-versa.
*
* @param label The label for the new checkbox (UTF-8 format).
* @param variable Pointer to the variable containing this checkbox's
* value.
* @return Pointer to the new checkbox.
*/
txt_checkbox_t *TXT_NewInvertedCheckBox(const char *label, int *variable);
#endif /* #ifndef TXT_CHECKBOX_H */