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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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/** Scroll Wheel Management (Generic 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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GX_CALLER_CHECKING_EXTERNS |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gxe_generic_scroll_wheel_create PORTABLE C */ |
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/* 6.1.7 */ |
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/* AUTHOR */ |
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/* */ |
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/* Ting Zhu, Microsoft Corporation */ |
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/* */ |
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/* DESCRIPTION */ |
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/* */ |
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/* This function checks for errors in the generic scroll wheel create */ |
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/* function call. */ |
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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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/* name Name of widget */ |
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/* parent Parent widget control block */ |
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/* total_rows Total rows of the scroll wheel*/ |
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/* callback Callback function to create a */ |
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/* widget row */ |
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/* style Style of widget */ |
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/* id Application-defined ID of the */ |
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/* the widget */ |
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/* size Widget size */ |
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/* control_block_size Size of the widget scroll */ |
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/* wheel control block */ |
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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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/* _gxe_generic_scroll_wheel_create Actual generic scroll wheel */ |
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/* create function */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* Application Code */ |
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/* */ |
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/**************************************************************************/ |
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UINT _gxe_generic_scroll_wheel_create(GX_GENERIC_SCROLL_WHEEL *wheel, GX_CONST GX_CHAR *name, |
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GX_WIDGET *parent, INT total_rows, |
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VOID (*callback)(GX_GENERIC_SCROLL_WHEEL *, GX_WIDGET *, INT), |
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ULONG style, USHORT id, GX_CONST GX_RECTANGLE *size, |
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UINT control_block_size) |
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{ |
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/* Check for appropriate caller. */ |
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✓✓✓✓
✓✓ |
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GX_INIT_AND_THREADS_CALLER_CHECKING |
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/* Check for invalid input pointers. */ |
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✓✓✓✓
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if ((wheel == GX_NULL) || (size == GX_NULL)) |
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{ |
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return GX_PTR_ERROR; |
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} |
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✓✓ |
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if (control_block_size != sizeof(GX_GENERIC_SCROLL_WHEEL)) |
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{ |
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return(GX_INVALID_SIZE); |
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} |
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/* Check for id is created. */ |
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✓✓ |
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if (wheel -> gx_widget_type != 0) |
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{ |
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return(GX_ALREADY_CREATED); |
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} |
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/* Check for valid number of rows . */ |
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✓✓ |
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if (total_rows <= 0) |
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{ |
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return GX_INVALID_VALUE; |
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} |
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/* Check for invalid widget. */ |
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✓✓✓✓
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if (parent && (parent -> gx_widget_type == 0)) |
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{ |
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return GX_INVALID_WIDGET; |
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} |
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/* Call the actual generic scroll wheel create function. */ |
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return _gx_generic_scroll_wheel_create(wheel, name, parent, total_rows, callback, style, id, size); |
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} |
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