1 /**************************************************************************/ 2 /* */ 3 /* Copyright (c) Microsoft Corporation. All rights reserved. */ 4 /* */ 5 /* This software is licensed under the Microsoft Software License */ 6 /* Terms for Microsoft Azure RTOS. Full text of the license can be */ 7 /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */ 8 /* and in the root directory of this software. */ 9 /* */ 10 /**************************************************************************/ 11 12 13 /**************************************************************************/ 14 /**************************************************************************/ 15 /** */ 16 /** GUIX Component */ 17 /** */ 18 /** Slider Management (Slider) */ 19 /** */ 20 /**************************************************************************/ 21 22 #define GX_SOURCE_CODE 23 24 /* Include necessary system files. */ 25 26 #include "gx_api.h" 27 #include "gx_slider.h" 28 29 /* Bring in externs for caller checking code. */ 30 GX_CALLER_CHECKING_EXTERNS 31 32 /**************************************************************************/ 33 /* */ 34 /* FUNCTION RELEASE */ 35 /* */ 36 /* _gxe_slider_value_calculate PORTABLE C */ 37 /* 6.1 */ 38 /* AUTHOR */ 39 /* */ 40 /* Kenneth Maxwell, Microsoft Corporation */ 41 /* */ 42 /* DESCRIPTION */ 43 /* */ 44 /* This function checks for errors in slider value calculate call. */ 45 /* */ 46 /* INPUT */ 47 /* */ 48 /* slider Slider widget control block */ 49 /* info Pointer to slider info */ 50 /* new_position New slider position */ 51 /* */ 52 /* OUTPUT */ 53 /* */ 54 /* status Completion status */ 55 /* */ 56 /* CALLS */ 57 /* */ 58 /* _gx_slider_value_calculate Actual slider value calculate */ 59 /* call */ 60 /* CALLED BY */ 61 /* */ 62 /* Application Code */ 63 /* */ 64 /* RELEASE HISTORY */ 65 /* */ 66 /* DATE NAME DESCRIPTION */ 67 /* */ 68 /* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */ 69 /* 09-30-2020 Kenneth Maxwell Modified comment(s), */ 70 /* resulting in version 6.1 */ 71 /* */ 72 /**************************************************************************/ _gxe_slider_value_calculate(GX_SLIDER * slider,GX_SLIDER_INFO * info,INT new_position)73UINT _gxe_slider_value_calculate(GX_SLIDER *slider, GX_SLIDER_INFO *info, INT new_position) 74 { 75 UINT status; 76 77 /* Check for invalid caller. */ 78 GX_INIT_AND_THREADS_CALLER_CHECKING 79 80 /* Check for invalid pointer. */ 81 if ((slider == GX_NULL) || (info == GX_NULL)) 82 { 83 return(GX_PTR_ERROR); 84 } 85 86 /* Check for invalid widget. */ 87 if (slider -> gx_widget_type == 0) 88 { 89 return(GX_INVALID_WIDGET); 90 } 91 92 /* Check for invalid slider info. */ 93 if ((info -> gx_slider_info_current_val < info -> gx_slider_info_min_val) || 94 (info -> gx_slider_info_current_val > info -> gx_slider_info_max_val) || 95 (info -> gx_slider_info_min_val >= info -> gx_slider_info_max_val)) 96 { 97 return(GX_INVALID_VALUE); 98 } 99 100 /* Call actual slider value caculate function. */ 101 status = _gx_slider_value_calculate(slider, info, new_position); 102 103 return(status); 104 } 105 106
