/********************************************************************* * * $Id: yocto_segmenteddisplay.h 59978 2024-03-18 15:04:46Z mvuilleu $ * * Declares yFindSegmentedDisplay(), the high-level API for SegmentedDisplay functions * * - - - - - - - - - License information: - - - - - - - - - * * Copyright (C) 2011 and beyond by Yoctopuce Sarl, Switzerland. * * Yoctopuce Sarl (hereafter Licensor) grants to you a perpetual * non-exclusive license to use, modify, copy and integrate this * file into your software for the sole purpose of interfacing * with Yoctopuce products. * * You may reproduce and distribute copies of this file in * source or object form, as long as the sole purpose of this * code is to interface with Yoctopuce products. You must retain * this notice in the distributed source file. * * You should refer to Yoctopuce General Terms and Conditions * for additional information regarding your rights and * obligations. * * THE SOFTWARE AND DOCUMENTATION ARE PROVIDED 'AS IS' WITHOUT * WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING * WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, FITNESS * FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO * EVENT SHALL LICENSOR BE LIABLE FOR ANY INCIDENTAL, SPECIAL, * INDIRECT OR CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST DATA, * COST OF PROCUREMENT OF SUBSTITUTE GOODS, TECHNOLOGY OR * SERVICES, ANY CLAIMS BY THIRD PARTIES (INCLUDING BUT NOT * LIMITED TO ANY DEFENSE THEREOF), ANY CLAIMS FOR INDEMNITY OR * CONTRIBUTION, OR OTHER SIMILAR COSTS, WHETHER ASSERTED ON THE * BASIS OF CONTRACT, TORT (INCLUDING NEGLIGENCE), BREACH OF * WARRANTY, OR OTHERWISE. * *********************************************************************/ #ifndef YOCTO_SEGMENTEDDISPLAY_H #define YOCTO_SEGMENTEDDISPLAY_H #include #include #include "yocto_api.h" #ifdef YOCTOLIB_NAMESPACE namespace YOCTOLIB_NAMESPACE { #endif //--- (YSegmentedDisplay return codes) //--- (end of YSegmentedDisplay return codes) //--- (YSegmentedDisplay yapiwrapper) //--- (end of YSegmentedDisplay yapiwrapper) //--- (YSegmentedDisplay definitions) class YSegmentedDisplay; // forward declaration typedef void (*YSegmentedDisplayValueCallback)(YSegmentedDisplay *func, const string& functionValue); #ifndef _Y_DISPLAYMODE_ENUM #define _Y_DISPLAYMODE_ENUM typedef enum { Y_DISPLAYMODE_DISCONNECTED = 0, Y_DISPLAYMODE_MANUAL = 1, Y_DISPLAYMODE_AUTO1 = 2, Y_DISPLAYMODE_AUTO60 = 3, Y_DISPLAYMODE_INVALID = -1, } Y_DISPLAYMODE_enum; #endif #define Y_DISPLAYEDTEXT_INVALID (YAPI_INVALID_STRING) //--- (end of YSegmentedDisplay definitions) //--- (YSegmentedDisplay declaration) /** * YSegmentedDisplay Class: segmented display control interface * * The SegmentedDisplay class allows you to drive segmented displays. */ class YOCTO_CLASS_EXPORT YSegmentedDisplay: public YFunction { #ifdef __BORLANDC__ #pragma option push -w-8022 #endif //--- (end of YSegmentedDisplay declaration) protected: //--- (YSegmentedDisplay attributes) // Attributes (function value cache) string _displayedText; Y_DISPLAYMODE_enum _displayMode; YSegmentedDisplayValueCallback _valueCallbackSegmentedDisplay; friend YSegmentedDisplay *yFindSegmentedDisplay(const string& func); friend YSegmentedDisplay *yFirstSegmentedDisplay(void); // Function-specific method for parsing of JSON output and caching result virtual int _parseAttr(YJSONObject *json_val); // Constructor is protected, use yFindSegmentedDisplay factory function to instantiate YSegmentedDisplay(const string& func); //--- (end of YSegmentedDisplay attributes) public: virtual ~YSegmentedDisplay(); //--- (YSegmentedDisplay accessors declaration) static const string DISPLAYEDTEXT_INVALID; static const Y_DISPLAYMODE_enum DISPLAYMODE_DISCONNECTED = Y_DISPLAYMODE_DISCONNECTED; static const Y_DISPLAYMODE_enum DISPLAYMODE_MANUAL = Y_DISPLAYMODE_MANUAL; static const Y_DISPLAYMODE_enum DISPLAYMODE_AUTO1 = Y_DISPLAYMODE_AUTO1; static const Y_DISPLAYMODE_enum DISPLAYMODE_AUTO60 = Y_DISPLAYMODE_AUTO60; static const Y_DISPLAYMODE_enum DISPLAYMODE_INVALID = Y_DISPLAYMODE_INVALID; /** * Returns the text currently displayed on the screen. * * @return a string corresponding to the text currently displayed on the screen * * On failure, throws an exception or returns YSegmentedDisplay::DISPLAYEDTEXT_INVALID. */ string get_displayedText(void); inline string displayedText(void) { return this->get_displayedText(); } /** * Changes the text currently displayed on the screen. * * @param newval : a string corresponding to the text currently displayed on the screen * * @return YAPI::SUCCESS if the call succeeds. * * On failure, throws an exception or returns a negative error code. */ int set_displayedText(const string& newval); inline int setDisplayedText(const string& newval) { return this->set_displayedText(newval); } Y_DISPLAYMODE_enum get_displayMode(void); inline Y_DISPLAYMODE_enum displayMode(void) { return this->get_displayMode(); } int set_displayMode(Y_DISPLAYMODE_enum newval); inline int setDisplayMode(Y_DISPLAYMODE_enum newval) { return this->set_displayMode(newval); } /** * Retrieves a segmented display for a given identifier. * The identifier can be specified using several formats: * * - FunctionLogicalName * - ModuleSerialNumber.FunctionIdentifier * - ModuleSerialNumber.FunctionLogicalName * - ModuleLogicalName.FunctionIdentifier * - ModuleLogicalName.FunctionLogicalName * * * This function does not require that the segmented display is online at the time * it is invoked. The returned object is nevertheless valid. * Use the method isOnline() to test if the segmented display is * indeed online at a given time. In case of ambiguity when looking for * a segmented display by logical name, no error is notified: the first instance * found is returned. The search is performed first by hardware name, * then by logical name. * * If a call to this object's is_online() method returns FALSE although * you are certain that the matching device is plugged, make sure that you did * call registerHub() at application initialization time. * * @param func : a string that uniquely characterizes the segmented display, for instance * MyDevice.segmentedDisplay. * * @return a YSegmentedDisplay object allowing you to drive the segmented display. */ static YSegmentedDisplay* FindSegmentedDisplay(string func); /** * Registers the callback function that is invoked on every change of advertised value. * The callback is invoked only during the execution of ySleep or yHandleEvents. * This provides control over the time when the callback is triggered. For good responsiveness, remember to call * one of these two functions periodically. To unregister a callback, pass a NULL pointer as argument. * * @param callback : the callback function to call, or a NULL pointer. The callback function should take two * arguments: the function object of which the value has changed, and the character string describing * the new advertised value. * @noreturn */ virtual int registerValueCallback(YSegmentedDisplayValueCallback callback); using YFunction::registerValueCallback; virtual int _invokeValueCallback(string value); inline static YSegmentedDisplay *Find(string func) { return YSegmentedDisplay::FindSegmentedDisplay(func); } /** * Continues the enumeration of segmented displays started using yFirstSegmentedDisplay(). * Caution: You can't make any assumption about the returned segmented displays order. * If you want to find a specific a segmented display, use SegmentedDisplay.findSegmentedDisplay() * and a hardwareID or a logical name. * * @return a pointer to a YSegmentedDisplay object, corresponding to * a segmented display currently online, or a NULL pointer * if there are no more segmented displays to enumerate. */ YSegmentedDisplay *nextSegmentedDisplay(void); inline YSegmentedDisplay *next(void) { return this->nextSegmentedDisplay();} /** * Starts the enumeration of segmented displays currently accessible. * Use the method YSegmentedDisplay::nextSegmentedDisplay() to iterate on * next segmented displays. * * @return a pointer to a YSegmentedDisplay object, corresponding to * the first segmented display currently online, or a NULL pointer * if there are none. */ static YSegmentedDisplay *FirstSegmentedDisplay(void); inline static YSegmentedDisplay *First(void) { return YSegmentedDisplay::FirstSegmentedDisplay();} #ifdef __BORLANDC__ #pragma option pop #endif //--- (end of YSegmentedDisplay accessors declaration) }; //--- (YSegmentedDisplay functions declaration) /** * Retrieves a segmented display for a given identifier. * The identifier can be specified using several formats: * * - FunctionLogicalName * - ModuleSerialNumber.FunctionIdentifier * - ModuleSerialNumber.FunctionLogicalName * - ModuleLogicalName.FunctionIdentifier * - ModuleLogicalName.FunctionLogicalName * * * This function does not require that the segmented display is online at the time * it is invoked. The returned object is nevertheless valid. * Use the method isOnline() to test if the segmented display is * indeed online at a given time. In case of ambiguity when looking for * a segmented display by logical name, no error is notified: the first instance * found is returned. The search is performed first by hardware name, * then by logical name. * * If a call to this object's is_online() method returns FALSE although * you are certain that the matching device is plugged, make sure that you did * call registerHub() at application initialization time. * * @param func : a string that uniquely characterizes the segmented display, for instance * MyDevice.segmentedDisplay. * * @return a YSegmentedDisplay object allowing you to drive the segmented display. */ inline YSegmentedDisplay *yFindSegmentedDisplay(const string& func) { return YSegmentedDisplay::FindSegmentedDisplay(func);} /** * Starts the enumeration of segmented displays currently accessible. * Use the method YSegmentedDisplay::nextSegmentedDisplay() to iterate on * next segmented displays. * * @return a pointer to a YSegmentedDisplay object, corresponding to * the first segmented display currently online, or a NULL pointer * if there are none. */ inline YSegmentedDisplay *yFirstSegmentedDisplay(void) { return YSegmentedDisplay::FirstSegmentedDisplay();} //--- (end of YSegmentedDisplay functions declaration) #ifdef YOCTOLIB_NAMESPACE // end of namespace definition } #endif #endif