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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 Management (Scroll) */ |
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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_widget.h" |
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#include "gx_button.h" |
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#include "gx_scrollbar.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_thumb_create 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 creates a bitmap prompt, which is a special type of */ |
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/* widget. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* scroll_thumb Scroll thumb control block */ |
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/* parent Pointer to parent scrollbar */ |
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/* style Style of scroll bar */ |
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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_button_create Create a button */ |
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/* _gx_widget_status_remove Clear the widget status flag */ |
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/* _gx_widget_link Link the widget to its parent */ |
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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_scroll_thumb_create(GX_SCROLL_THUMB *scroll_thumb, GX_SCROLLBAR *parent, |
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ULONG style) |
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{ |
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GX_RECTANGLE size; |
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✓✓ |
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if (parent) |
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{ |
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size = parent -> gx_widget_size; |
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} |
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else |
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{ |
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size.gx_rectangle_bottom = size.gx_rectangle_left = size.gx_rectangle_right = size.gx_rectangle_top = 0; |
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} |
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/* Clear the scroll control block. */ |
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_gx_button_create((GX_BUTTON *)scroll_thumb, GX_NULL, GX_NULL, style, GX_ID_SCROLL_THUMB, &size); |
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_gx_widget_status_remove((GX_WIDGET *)scroll_thumb, GX_STATUS_ACCEPTS_FOCUS); |
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scroll_thumb -> gx_widget_draw_function = (VOID (*)(struct GX_WIDGET_STRUCT *))_gx_scroll_thumb_draw; |
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scroll_thumb -> gx_widget_event_process_function = (UINT (*)(GX_WIDGET *, GX_EVENT *))_gx_scroll_thumb_event_process; |
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scroll_thumb -> gx_widget_normal_fill_color = GX_COLOR_ID_SCROLL_BUTTON; |
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scroll_thumb -> gx_widget_selected_fill_color = GX_COLOR_ID_SCROLL_BUTTON; |
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scroll_thumb -> gx_scroll_thumb_border_color = GX_COLOR_ID_SCROLL_BUTTON; |
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/* Determine if a parent widget was provided. */ |
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✓✓ |
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if (parent) |
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{ |
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scroll_thumb -> gx_scroll_thumb_border_color = parent -> gx_scrollbar_appearance.gx_scroll_thumb_border_color; |
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scroll_thumb -> gx_widget_normal_fill_color = parent -> gx_scrollbar_appearance.gx_scroll_thumb_color; |
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scroll_thumb -> gx_widget_selected_fill_color = parent -> gx_scrollbar_appearance.gx_scroll_thumb_color; |
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scroll_thumb -> gx_scroll_thumb_pixelmap = parent -> gx_scrollbar_appearance.gx_scroll_thumb_pixelmap; |
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_gx_widget_link((GX_WIDGET *)parent, (GX_WIDGET *)scroll_thumb); |
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} |
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return GX_SUCCESS; |
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} |
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