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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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/** Line Chart Management (Line Chart) */ |
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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_window.h" |
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#include "gx_line_chart.h" |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gx_line_chart_y_scale_calculate 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 calculates chart y axis scale value */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* chart Line chart */ |
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/* return_value location to pass return value */ |
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/* */ |
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/* OUTPUT */ |
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/* */ |
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/* Completion Status */ |
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/* */ |
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/* CALLS */ |
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/* */ |
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/* none */ |
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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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/* 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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UINT _gx_line_chart_y_scale_calculate(GX_LINE_CHART *chart, INT *return_value) |
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{ |
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INT y_scale; |
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GX_LINE_CHART_INFO *chart_info; |
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chart_info = &chart -> gx_line_chart_info; |
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y_scale = chart -> gx_widget_size.gx_rectangle_bottom - chart -> gx_widget_size.gx_rectangle_top + 1; |
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y_scale -= chart_info -> gx_line_chart_top_margin + chart_info -> gx_line_chart_bottom_margin; |
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y_scale -= chart_info -> gx_line_chart_axis_line_width; |
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y_scale = GX_FIXED_VAL_MAKE(y_scale); |
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✓✓ |
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if (chart_info -> gx_line_chart_max_val != chart_info -> gx_line_chart_min_val) |
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{ |
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y_scale /= (chart_info -> gx_line_chart_max_val - chart_info -> gx_line_chart_min_val); |
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} |
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*return_value = y_scale; |
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return GX_SUCCESS; |
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} |
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