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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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/** Horizontal 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_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_horizontal_list_page_index_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 sets the index of first list item */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* horizontal_list Horizontal list widget */ |
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/* control block */ |
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/* list_entry Pointer to new list entry */ |
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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_widget_event_generate Creates a new GX_EVENT */ |
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/* _gx_system_dirty_mark Mark the widget dirty */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* _gx_horizontal_list_event_process */ |
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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_horizontal_list_page_index_set(GX_HORIZONTAL_LIST *list, INT index) |
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{ |
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GX_WIDGET *child; |
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GX_SCROLLBAR *pScroll; |
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INT scroll_value; |
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✓✓ |
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if ((list -> gx_horizontal_list_total_columns > 0) && |
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✓✓✓✓
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((index <= list -> gx_horizontal_list_total_columns - list -> gx_horizontal_list_visible_columns) || (list -> gx_widget_style & GX_STYLE_WRAP))) |
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{ |
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child = _gx_widget_first_client_child_get((GX_WIDGET *)list); |
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✓✗ |
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if (child) |
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{ |
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/* Calculate scroll value. */ |
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scroll_value = child -> gx_widget_size.gx_rectangle_left; |
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scroll_value += (index - list -> gx_horizontal_list_top_index) * list -> gx_horizontal_list_child_width; |
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scroll_value = list -> gx_window_client.gx_rectangle_left - scroll_value; |
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/* Scroll to make index as the first visible entry. */ |
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_gx_horizontal_list_scroll(list, scroll_value); |
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_gx_window_scrollbar_find((GX_WINDOW *)list, GX_TYPE_HORIZONTAL_SCROLL, &pScroll); |
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✓✓ |
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if (pScroll) |
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{ |
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_gx_scrollbar_reset(pScroll, GX_NULL); |
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} |
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} |
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} |
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return GX_SUCCESS; |
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} |
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