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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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/** PIXELMAP Management (PIXELMAP) */ |
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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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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gx_widget_transparent_pixelmap_detect 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 detects whether or not a pixelmap contains */ |
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/* transparency. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* pixelmap_id Pixelmap ID */ |
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/* */ |
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/* OUTPUT */ |
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/* */ |
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/* GX_TRUE or GX_FALSE */ |
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/* */ |
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/* CALLS */ |
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/* */ |
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/* _gx_widget_canvas_get Retrieve canvas */ |
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/* */ |
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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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GX_BOOL _gx_widget_transparent_pixelmap_detect(GX_WIDGET *widget, GX_RESOURCE_ID pixelmap_id) |
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{ |
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GX_PIXELMAP *map; |
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GX_CANVAS *canvas; |
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GX_DISPLAY *display; |
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✓✓ |
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if (widget -> gx_widget_status & GX_STATUS_VISIBLE) |
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{ |
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_gx_widget_canvas_get(widget, &canvas); |
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✓✓ |
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if (canvas) |
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{ |
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display = canvas -> gx_canvas_display; |
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✓✓ |
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if (pixelmap_id < display -> gx_display_pixelmap_table_size) |
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{ |
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map = display -> gx_display_pixelmap_table[pixelmap_id]; |
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✓✓ |
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if (map) |
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{ |
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✓✓ |
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if (map -> gx_pixelmap_flags & (GX_PIXELMAP_TRANSPARENT | GX_PIXELMAP_ALPHA)) |
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{ |
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return GX_TRUE; |
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} |
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} |
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} |
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} |
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} |
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return GX_FALSE; |
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} |
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