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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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/** 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_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_scroll_shift_helper 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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/* Internal helper function to change the position of a widget. */ |
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/* It also adds a dirty entry if required. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* widget Widget control block */ |
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/* xShift The x-axis shift amount */ |
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/* yShift The y-axis shift amount */ |
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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_utility_rectangle_shift Shift a rectangle */ |
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/* _gx_system_dirty_entry_shift Mark partial widget area dirty*/ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* _gx_widget_scroll_shift */ |
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/* */ |
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/**************************************************************************/ |
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static VOID _gx_widget_scroll_shift_helper(GX_WIDGET *widget, INT xShift, INT yShift) |
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{ |
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GX_WINDOW *win; |
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_gx_utility_rectangle_shift(&widget -> gx_widget_size, (GX_VALUE)xShift, (GX_VALUE)yShift); |
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✓✓ |
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if (widget -> gx_widget_type >= GX_TYPE_WINDOW) |
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{ |
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win = (GX_WINDOW *)widget; |
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_gx_utility_rectangle_shift(&win -> gx_window_client, (GX_VALUE)xShift, (GX_VALUE)yShift); |
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} |
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✓✓ |
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if (widget -> gx_widget_status & GX_STATUS_DIRTY) |
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{ |
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/* mark it dirty again so that the new position is recorded */ |
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_gx_system_dirty_entry_shift(widget, xShift, yShift); |
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} |
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} |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gx_widget_scroll_shift 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 changes the position of a widget. It also adds */ |
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/* a dirty entry if required */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* widget Widget control block */ |
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/* xShift The x-axis shift amount */ |
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/* yShift The y-axis shift amount */ |
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/* clip Flag, should we update child */ |
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/* widget clipping areas. */ |
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/* */ |
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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_scroll_shift_helper Scroll a widget */ |
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/* _gx_widget_clipping_update Update the clipping area */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* Application Code */ |
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/* GUIX Internal Code */ |
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/* */ |
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/**************************************************************************/ |
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UINT _gx_widget_scroll_shift(GX_WIDGET *widget, INT xShift, INT yShift, GX_BOOL clip) |
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{ |
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GX_WIDGET *child; |
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/* first, check to see if the old and new size are the same */ |
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✓✓✓✓
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if (xShift == 0 && yShift == 0) |
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{ |
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return GX_SUCCESS; |
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} |
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_gx_widget_scroll_shift_helper(widget, xShift, yShift); |
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/* pick up pointer to first child widget */ |
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child = widget -> gx_widget_first_child; |
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/* loop through and shift all my child widgets */ |
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✓✓ |
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while (child) |
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{ |
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_gx_widget_scroll_shift_helper(child, xShift, yShift); |
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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 != widget)) |
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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 == widget) |
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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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if (clip && (widget -> gx_widget_status & GX_STATUS_VISIBLE)) |
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{ |
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_gx_widget_clipping_update(widget); |
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} |
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return(GX_SUCCESS); |
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} |
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