90 lines
3.2 KiB
C
90 lines
3.2 KiB
C
/*
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ChibiOS/GFX - Copyright (C) 2012
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Joel Bodenmann aka Tectu <joel@unormal.org>
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This file is part of ChibiOS/GFX.
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ChibiOS/GFX is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/GFX is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file ginput/ginput_dial.h
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* @brief GINPUT GFX User Input subsystem header file.
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*
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* @addtogroup GINPUT
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* @{
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*/
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#ifndef _GINPUT_DIAL_H
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#define _GINPUT_DIAL_H
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/**
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* @name GINPUT more complex functionality to be compiled
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* @{
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*/
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/**
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* @brief Should analog dial functions be included.
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* @details Defaults to FALSE
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*/
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#ifndef GINPUT_NEED_DIAL
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#define GINPUT_NEED_DIAL FALSE
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#endif
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/** @} */
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#if GINPUT_NEED_DIAL || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Low Level Driver details and error checks. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Type definitions */
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/*===========================================================================*/
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// Event types for various ginput sources
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#define GEVENT_DIAL (GEVENT_GINPUT_FIRST+4)
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typedef struct GEventDial_t {
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GEventType type; // The type of this event (GEVENT_DIAL)
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uint16_t instance; // The dial instance
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uint16_t value; // The dial value
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} GEventDial;
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/*===========================================================================*/
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/* External declarations. */
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/*===========================================================================*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Dial Functions */
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GSourceHandle ginputGetDial(uint16_t instance); // Instance = 0 to n-1
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void ginputResetDialRange(uint16_t instance); // Reset the maximum value back to the hardware default.
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uint16_t ginputGetDialRange(uint16_t instance); // Get the maximum value. The readings are scaled to be 0...max-1. 0 means over the full uint16_t range.
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void ginputSetDialRange(uint16_t instance, uint16_t max); // Set the maximum value.
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void ginputSetDialSensitivity(uint16_t instance, uint16_t diff); // Set the level change required before a dial event is generated.
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// - This is done after range scaling
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/* Get the current keyboard button status.
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* Returns FALSE on error (eg invalid instance)
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*/
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bool_t ginputGetDialStatus(uint16_t instance, GEventDial *pdial);
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#ifdef __cplusplus
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}
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#endif
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#endif /* GINPUT_NEED_DIAL */
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#endif /* _GINPUT_DIAL_H */
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/** @} */
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