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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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/** Radial Slider Management (Slider) */ |
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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_utility.h" |
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#include "gx_radial_slider.h" |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gx_radial_slider_needle_rectangle_calculate PORTABLE C */ |
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/* 6.1.10 */ |
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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 calculates the bounding rectangle of the radial slider */ |
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/* needle. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* slider Radial slider control block */ |
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/* rectangle Rectangle to be retrieved */ |
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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_pixelmap_get Retrieve pixelmap with */ |
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/* specified resource id */ |
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/* _gx_utility_rectangle_define Define a rectangle */ |
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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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/* */ |
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/**************************************************************************/ |
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UINT _gx_radial_slider_needle_rectangle_calculate(GX_RADIAL_SLIDER *slider, GX_RECTANGLE *rectangle) |
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{ |
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GX_PIXELMAP *map; |
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GX_RADIAL_SLIDER_INFO *info = &slider -> gx_radial_slider_info; |
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INT xpos; |
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INT ypos; |
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_gx_widget_pixelmap_get((GX_WIDGET *)slider, info -> gx_radial_slider_info_needle_pixelmap, &map); |
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✓✓ |
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if (map) |
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{ |
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xpos = _gx_utility_math_cos(GX_FIXED_VAL_MAKE(info -> gx_radial_slider_info_current_angle)); |
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ypos = _gx_utility_math_sin(GX_FIXED_VAL_MAKE(info -> gx_radial_slider_info_current_angle)); |
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/* calculate sin and cos value of current angle value. */ |
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xpos = GX_FIXED_VAL_RND((info -> gx_radial_slider_info_radius + info -> gx_radial_slider_info_needle_offset) * xpos); |
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ypos = GX_FIXED_VAL_RND((info -> gx_radial_slider_info_radius + info -> gx_radial_slider_info_needle_offset) * ypos); |
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/* calculate needle position. */ |
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xpos += info -> gx_radial_slider_info_xcenter; |
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ypos = info -> gx_radial_slider_info_ycenter - ypos; |
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xpos -= map -> gx_pixelmap_width >> 1; |
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ypos -= map -> gx_pixelmap_height >> 1; |
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xpos += slider -> gx_widget_size.gx_rectangle_left; |
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ypos += slider -> gx_widget_size.gx_rectangle_top; |
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/* define needle rectangle. */ |
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_gx_utility_rectangle_define(rectangle, (GX_VALUE)xpos, (GX_VALUE)ypos, |
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(GX_VALUE)(xpos + map -> gx_pixelmap_width), |
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(GX_VALUE)(ypos + map -> gx_pixelmap_height)); |
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} |
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else |
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{ |
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_gx_utility_rectangle_define(rectangle, 0, 0, 0, 0); |
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} |
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return GX_SUCCESS; |
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} |
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