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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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/** Circular Gauge Management (Circular Gauge) */ |
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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_utility.h" |
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#include "gx_circular_gauge.h" |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gx_circular_gauge_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 function calculates needle rectangle. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* circular_gauge Circular gauge control block */ |
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/* angle The rotation angle */ |
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/* rect return rectangle pointer */ |
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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_math_sin Compute sin value */ |
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/* _gx_utility_math_cos Compute cos value */ |
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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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UINT _gx_circular_gauge_needle_rectangle_calculate(GX_CIRCULAR_GAUGE *gauge, INT angle, GX_RECTANGLE *rect) |
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{ |
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GX_CIRCULAR_GAUGE_INFO *info; |
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INT mx[4] = { -1, 1, 1, -1 }; |
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INT my[4] = { 1, 1, -1, -1 }; |
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INT idxminx; |
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INT idxmaxx; |
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INT idxmaxy; |
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GX_PIXELMAP *needle_map; |
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INT srcxres; |
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INT srcyres; |
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INT cosv; |
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INT sinv; |
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INT xres; |
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INT yres; |
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INT width; |
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INT height; |
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INT rot_cx; |
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INT rot_cy; |
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INT x; |
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INT y; |
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/* Pick up needle pixelmap. */ |
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needle_map = gauge -> gx_circular_gauge_needle_source; |
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✓✓ |
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if (needle_map == GX_NULL) |
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{ |
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return GX_FAILURE; |
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} |
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info = &gauge -> gx_circular_gauge_info; |
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✓✓ |
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while (angle < 0) |
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{ |
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angle += 360; |
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} |
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idxminx = (angle / 90) & 0x3; |
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idxmaxx = (idxminx + 2) & 0x3; |
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idxmaxy = (idxminx + 1) & 0x3; |
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/* Calculate the source x and y center. */ |
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srcxres = needle_map -> gx_pixelmap_width >> 1; |
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srcyres = needle_map -> gx_pixelmap_height >> 1; |
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cosv = _gx_utility_math_cos(GX_FIXED_VAL_MAKE(angle)); |
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sinv = _gx_utility_math_sin(GX_FIXED_VAL_MAKE(angle)); |
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xres = GX_FIXED_VAL_TO_INT(mx[idxmaxx] * (srcxres + 2) * cosv - my[idxmaxx] * (srcyres + 2) * sinv); |
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yres = GX_FIXED_VAL_TO_INT(my[idxmaxy] * (srcyres + 2) * cosv + mx[idxmaxy] * (srcxres + 2) * sinv); |
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/* Calculate destination width and height. */ |
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width = (xres << 1); |
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height = (yres << 1); |
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rot_cx = info -> gx_circular_gauge_info_needle_xcor; |
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rot_cy = info -> gx_circular_gauge_info_needle_ycor; |
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/* Calculate the new rotation axis. */ |
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x = (rot_cx - srcxres) * cosv - (rot_cy - srcyres) * sinv; |
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y = (rot_cy - srcyres) * cosv + (rot_cx - srcxres) * sinv; |
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x = GX_FIXED_VAL_TO_INT(x) + xres; |
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y = GX_FIXED_VAL_TO_INT(y) + yres; |
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/* Calculate new needle rectangle */ |
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rect -> gx_rectangle_left = (GX_VALUE)(gauge -> gx_widget_size.gx_rectangle_left + |
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info -> gx_circular_gauge_info_needle_xpos - x); |
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rect -> gx_rectangle_top = (GX_VALUE)(gauge -> gx_widget_size.gx_rectangle_top + |
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info -> gx_circular_gauge_info_needle_ypos - y); |
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rect -> gx_rectangle_right = (GX_VALUE)(rect -> gx_rectangle_left + width); |
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rect -> gx_rectangle_bottom = (GX_VALUE)(rect -> gx_rectangle_top + height); |
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/* Mark the combine area as dirty. */ |
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return(GX_SUCCESS); |
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} |
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