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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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/** Drop List (List) */ |
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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_window.h" |
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#include "gx_system.h" |
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#include "gx_drop_list.h" |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gx_drop_list_open 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 opens a drop list. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* drop_list Drop list 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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/* _gx_window_root_find Find the root window */ |
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/* _gx_widget_resize Resize a widget */ |
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/* _gx_vertical_list_children_position Position the children for */ |
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/* the vertical list */ |
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/* _gx_widget_link Link the widget to its root */ |
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/* _gx_system_focus_claim Claim the input focus */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* _gx_drop_list_event_process */ |
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/* */ |
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/**************************************************************************/ |
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UINT _gx_drop_list_open(GX_DROP_LIST *drop_list) |
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{ |
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GX_WINDOW_ROOT *root; |
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GX_WIDGET *child; |
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GX_RECTANGLE size; |
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GX_VERTICAL_LIST *list = &drop_list -> gx_drop_list_popup.gx_popup_list_list; |
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✓✓ |
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if (list -> gx_widget_status & GX_STATUS_VISIBLE) |
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{ |
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drop_list -> gx_drop_list_popup_open = GX_TRUE; |
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return(GX_SUCCESS); |
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} |
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_gx_window_root_find((GX_WIDGET *)drop_list, &root); |
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size = drop_list -> gx_widget_size; |
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size.gx_rectangle_top = (GX_VALUE)(size.gx_rectangle_bottom + 1); |
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size.gx_rectangle_bottom = (GX_VALUE)(size.gx_rectangle_top + drop_list -> gx_drop_list_open_height); |
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_gx_widget_resize((GX_WIDGET *)list, &size); |
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_gx_vertical_list_children_position(list); |
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_gx_widget_link((GX_WIDGET *)drop_list -> gx_widget_parent, (GX_WIDGET *)list); |
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_gx_vertical_list_selected_widget_get(list, &child); |
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✓✓ |
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if (child) |
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{ |
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child -> gx_widget_style |= GX_STYLE_DRAW_SELECTED; |
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} |
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drop_list -> gx_drop_list_popup_open = GX_TRUE; |
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_gx_system_focus_claim((GX_WIDGET *)list); |
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return(GX_SUCCESS); |
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} |
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