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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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/** Widget Management (Widget) */ |
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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_canvas.h" |
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#include "gx_utility.h" |
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#include "gx_widget.h" |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gx_widget_child_clipping_update 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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/* Update the clipping members of each child widget to prevent them */ |
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/* from drawing outside their parent's area. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* parent Pointer to parent widget */ |
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/* */ |
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/* OUTPUT */ |
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/* */ |
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/* None */ |
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/* */ |
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/* CALLS */ |
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/* */ |
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/* _gx_utility_rectangle_overlap_detect Detect overlapping widgets */ |
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/* _gx_widget_child_clipping_update Updating child clipping area */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* GUIX Internal Code */ |
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/* GUIX 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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42377 |
VOID _gx_widget_child_clipping_update(GX_WIDGET *parent) |
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{ |
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GX_WIDGET *child; |
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GX_WIDGET *win; |
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child = parent -> gx_widget_first_child; |
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✓✓ |
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while (child) |
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{ |
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win = child -> gx_widget_parent; |
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_gx_utility_rectangle_overlap_detect(&win -> gx_widget_clip, |
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&child -> gx_widget_size, &child -> gx_widget_clip); |
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✓✓ |
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if (win -> gx_widget_type >= GX_TYPE_WINDOW && |
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✓✓ |
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!(child -> gx_widget_status & GX_STATUS_NONCLIENT)) |
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{ |
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_gx_utility_rectangle_overlap_detect(&((GX_WINDOW *)win) -> gx_window_client, |
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&child -> gx_widget_clip, &child -> gx_widget_clip); |
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} |
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✓✓ |
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if (child -> gx_widget_first_child) |
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{ |
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child = child -> gx_widget_first_child; |
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continue; |
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} |
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✓✓✓✓
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while ((child -> gx_widget_next == GX_NULL) && (child != parent)) |
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{ |
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child = child -> gx_widget_parent; |
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} |
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✓✓ |
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if (child == parent) |
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{ |
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break; |
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} |
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child = child -> gx_widget_next; |
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} |
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} |
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