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/*************************************************************************** |
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* Copyright (c) 2024 Microsoft Corporation |
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* Copyright (c) 2026-present Eclipse ThreadX contributors |
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* |
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* This program and the accompanying materials are made available under the |
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* terms of the MIT License which is available at |
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* https://opensource.org/licenses/MIT. |
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* |
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* SPDX-License-Identifier: MIT |
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**************************************************************************/ |
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/**************************************************************************/ |
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/**************************************************************************/ |
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/** */ |
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/** GUIX Component */ |
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/** */ |
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/** Numeric Scroll Wheel Management (Scroll Wheel) */ |
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/** */ |
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/**************************************************************************/ |
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#define GX_SOURCE_CODE |
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/* Include necessary system files. */ |
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#include "gx_api.h" |
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#include "gx_scroll_wheel.h" |
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#include "gx_utility.h" |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gx_numeric_scroll_wheel_text_get PORTABLE C */ |
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/* 6.1 */ |
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/* AUTHOR */ |
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/* */ |
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/* Kenneth Maxwell, Microsoft Corporation */ |
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/* */ |
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/* DESCRIPTION */ |
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/* */ |
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/* This function returns pointer to numeric text. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* wheel Scroll wheel control block */ |
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/* row Desired text row */ |
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/* */ |
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/* OUTPUT */ |
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/* */ |
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/* status Completion status */ |
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/* */ |
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/* CALLS */ |
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/* */ |
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/* _gx_utility_ltoa Convert integer to string */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* _gx_text_scroll_wheel_draw */ |
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/* */ |
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/**************************************************************************/ |
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UINT _gx_numeric_scroll_wheel_text_get(GX_NUMERIC_SCROLL_WHEEL *wheel, INT row, GX_STRING *string) |
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{ |
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INT step; |
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INT val; |
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✓✓ |
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if (row < wheel -> gx_scroll_wheel_total_rows) |
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{ |
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step = wheel -> gx_numeric_scroll_wheel_end_val - wheel -> gx_numeric_scroll_wheel_start_val; |
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✓✓ |
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if (step == (wheel -> gx_scroll_wheel_total_rows - 1)) |
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{ |
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step = 1; |
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} |
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✓✓ |
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else if (step == (1 - wheel -> gx_scroll_wheel_total_rows)) |
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{ |
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step = -1; |
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} |
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✓✓ |
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else if (wheel -> gx_scroll_wheel_total_rows > 1) |
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{ |
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step /= (wheel -> gx_scroll_wheel_total_rows - 1); |
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} |
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val = wheel -> gx_numeric_scroll_wheel_start_val + (step * row); |
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_gx_utility_ltoa(val, wheel -> gx_numeric_scroll_wheel_string_buffer, GX_NUMERIC_SCROLL_WHEEL_STRING_BUFFER_SIZE); |
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string -> gx_string_ptr = wheel -> gx_numeric_scroll_wheel_string_buffer; |
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_gx_utility_string_length_check(string -> gx_string_ptr, &string -> gx_string_length, GX_NUMERIC_SCROLL_WHEEL_STRING_BUFFER_SIZE - 1); |
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} |
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else |
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{ |
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string -> gx_string_ptr = GX_NULL; |
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string -> gx_string_length = 0; |
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} |
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return(GX_SUCCESS); |
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} |
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