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/*************************************************************************** |
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* Copyright (c) 2024 Microsoft Corporation |
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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 (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_system.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_scroll_wheel_gradient_alpha_set 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 sets the start and end alpha of gradient pixelmap that*/ |
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/* used to cover the top and bottom of a text scroll wheel widget. */ |
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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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/* start_alpha Start alpha */ |
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/* end_alpha End alpha */ |
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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_scroll_wheel_gradient_create Create a gradient pixelmap */ |
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/* _gx_system_dirty_mark Mark a widget as dirty */ |
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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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/* RELEASE HISTORY */ |
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/* */ |
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/* DATE NAME DESCRIPTION */ |
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/* */ |
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/* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */ |
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/* 09-30-2020 Kenneth Maxwell Modified comment(s), */ |
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/* resulting in version 6.1 */ |
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/* */ |
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/**************************************************************************/ |
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UINT _gx_scroll_wheel_gradient_alpha_set(GX_SCROLL_WHEEL *wheel, GX_UBYTE start_alpha, GX_UBYTE end_alpha) |
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{ |
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wheel -> gx_scroll_wheel_gradient.gx_gradient_alpha_start = start_alpha; |
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wheel -> gx_scroll_wheel_gradient.gx_gradient_alpha_end = end_alpha; |
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✓✓ |
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if (wheel -> gx_widget_status & GX_STATUS_VISIBLE) |
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{ |
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_gx_scroll_wheel_gradient_create(wheel); |
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_gx_system_dirty_mark((GX_WIDGET *)wheel); |
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} |
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return GX_SUCCESS; |
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} |
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