ref: 0cdd84e7f5ed6851eb8fdf46a270e22dce8178bf
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 */