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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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/** Scrollbar Management (Scrollbar) */ |
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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_system.h" |
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#include "gx_scrollbar.h" |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gx_scrollbar_value_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 service resets the scrollbar. */ |
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/* */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* scrollbar Scrollbar control block */ |
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/* value New scrollbar value */ |
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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_scrollbar_limit_check Check value limits */ |
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/* _gx_scrollbar_thumb_position_calculate */ |
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/* Calculate the scrollbar thumb */ |
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/* position */ |
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/* _gx_system_dirty_mark Mark system block 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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/**************************************************************************/ |
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UINT _gx_scrollbar_value_set(GX_SCROLLBAR *scrollbar, INT value) |
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{ |
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GX_EVENT newevent; |
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INT old_value; |
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old_value = scrollbar -> gx_scrollbar_info.gx_scroll_value; |
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scrollbar -> gx_scrollbar_info.gx_scroll_value = value; |
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_gx_scrollbar_limit_check(scrollbar); |
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✓✓ |
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if (old_value != scrollbar ->gx_scrollbar_info.gx_scroll_value) |
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{ |
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_gx_scrollbar_thumb_position_calculate(scrollbar); |
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newevent.gx_event_payload.gx_event_intdata[0] = scrollbar -> gx_scrollbar_info.gx_scroll_value; |
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newevent.gx_event_payload.gx_event_intdata[1] = old_value; |
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newevent.gx_event_sender = scrollbar -> gx_widget_id; |
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✓✓ |
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if (scrollbar -> gx_widget_style & GX_SCROLLBAR_VERTICAL) |
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{ |
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newevent.gx_event_type = GX_EVENT_VERTICAL_SCROLL; |
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} |
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else |
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{ |
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newevent.gx_event_type = GX_EVENT_HORIZONTAL_SCROLL; |
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} |
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newevent.gx_event_target = scrollbar -> gx_widget_parent; |
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_gx_system_event_send(&newevent); |
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✓✓ |
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if (scrollbar -> gx_widget_status & GX_STATUS_VISIBLE) |
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{ |
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_gx_system_dirty_mark((GX_WIDGET *)scrollbar); |
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} |
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} |
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return(GX_SUCCESS); |
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} |
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