GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: gx_line_chart_y_scale_calculate.c Lines: 10 10 100.0 %
Date: 2024-12-05 08:52:37 Branches: 2 2 100.0 %

Line Branch Exec Source
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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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    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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