ref: bda24e56c062c08a1d0f885afd519e915c177f2a
dir: /textscreen/txt_spinctrl.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_SPINCONTROL_H
#define TXT_SPINCONTROL_H
/**
* @file txt_spinctrl.h
*
* Spin control widget.
*/
/**
* Spin control widget.
*
* A spin control widget works as an input box that can be used to
* set numeric values, but also has buttons that allow its value
* to be increased or decreased.
*/
typedef struct txt_spincontrol_s txt_spincontrol_t;
typedef enum
{
TXT_SPINCONTROL_INT,
TXT_SPINCONTROL_FLOAT,
} txt_spincontrol_type_t;
#include "txt_widget.h"
struct txt_spincontrol_s
{
txt_widget_t widget;
txt_spincontrol_type_t type;
union { float f; int i; } min, max, *value, step;
int editing;
char *buffer;
size_t buffer_len;
};
/**
* Create a new spin control widget tracking an integer value.
*
* @param value Pointer to the variable containing the value
* displayed in the widget.
* @param min Minimum value that may be set.
* @param max Maximum value that may be set.
* @return Pointer to the new spin control widget.
*/
txt_spincontrol_t *TXT_NewSpinControl(int *value, int min, int max);
/**
* Create a new spin control widget tracking a float value.
*
* @param value Pointer to the variable containing the value
* displayed in the widget.
* @param min Minimum value that may be set.
* @param max Maximum value that may be set.
* @return Pointer to the new spin control widget.
*/
txt_spincontrol_t *TXT_NewFloatSpinControl(float *value, float min, float max);
#endif /* #ifndef TXT_SPINCONTROL_H */