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✏️ Editing: Indicator.php

<?php

namespace CpChart\Chart;

use CpChart\Image;

/**
 *  Indicator - class to draw indicators
 *
 *  Version     : 2.1.4
 *  Made by     : Jean-Damien POGOLOTTI
 *  Last Update : 19/01/2014
 *
 *  This file can be distributed under the license you can find at :
 *
 *  http://www.pchart.net/license
 *
 *  You can find the whole class documentation on the pChart web site.
 */
class Indicator
{
    /**
     * @var Image
     */
    public $pChartObject;

/**
     * @param Image $pChartObject
     */
    public function __construct(Image $pChartObject)
    {
        $this->pChartObject = $pChartObject;
    }

/**
     * Draw an indicator
     *
     * @param int $X
     * @param int $Y
     * @param int $Width
     * @param int $Height
     * @param array $Format
     * @return null|int
     */
    public function draw($X, $Y, $Width, $Height, array $Format = [])
    {
        $Values = isset($Format["Values"]) ? $Format["Values"] : VOID;
        $IndicatorSections = isset($Format["IndicatorSections"]) ? $Format["IndicatorSections"] : null;
        $ValueDisplay = isset($Format["ValueDisplay"]) ? $Format["ValueDisplay"] : INDICATOR_VALUE_BUBBLE;
        $SectionsMargin = isset($Format["SectionsMargin"]) ? $Format["SectionsMargin"] : 4;
        $DrawLeftHead = isset($Format["DrawLeftHead"]) ? $Format["DrawLeftHead"] : true;
        $DrawRightHead = isset($Format["DrawRightHead"]) ? $Format["DrawRightHead"] : true;
        $HeadSize = isset($Format["HeadSize"]) ? $Format["HeadSize"] : floor($Height / 4);
        $TextPadding = isset($Format["TextPadding"]) ? $Format["TextPadding"] : 4;
        $CaptionLayout = isset($Format["CaptionLayout"]) ? $Format["CaptionLayout"] : INDICATOR_CAPTION_EXTENDED;
        $CaptionPosition = isset($Format["CaptionPosition"]) ? $Format["CaptionPosition"] : INDICATOR_CAPTION_INSIDE;
        $CaptionColorFactor = isset($Format["CaptionColorFactor"]) ? $Format["CaptionColorFactor"] : null;
        $CaptionR = isset($Format["CaptionR"]) ? $Format["CaptionR"] : 255;
        $CaptionG = isset($Format["CaptionG"]) ? $Format["CaptionG"] : 255;
        $CaptionB = isset($Format["CaptionB"]) ? $Format["CaptionB"] : 255;
        $CaptionAlpha = isset($Format["CaptionAlpha"]) ? $Format["CaptionAlpha"] : 100;
        $SubCaptionColorFactor = isset($Format["SubCaptionColorFactor"]) ? $Format["SubCaptionColorFactor"] : null;
        $SubCaptionR = isset($Format["SubCaptionR"]) ? $Format["SubCaptionR"] : 50;
        $SubCaptionG = isset($Format["SubCaptionG"]) ? $Format["SubCaptionG"] : 50;
        $SubCaptionB = isset($Format["SubCaptionB"]) ? $Format["SubCaptionB"] : 50;
        $SubCaptionAlpha = isset($Format["SubCaptionAlpha"]) ? $Format["SubCaptionAlpha"] : 100;
        $ValueFontName = isset($Format["ValueFontName"]) ? $Format["ValueFontName"] : $this->pChartObject->FontName;
        $ValueFontSize = isset($Format["ValueFontSize"]) ? $Format["ValueFontSize"] : $this->pChartObject->FontSize;
        $CaptionFontName = isset($Format["CaptionFontName"])
            ? $Format["CaptionFontName"] : $this->pChartObject->FontName
        ;
        $CaptionFontSize = isset($Format["CaptionFontSize"])
            ? $Format["CaptionFontSize"] : $this->pChartObject->FontSize
        ;
        $Unit = isset($Format["Unit"]) ? $Format["Unit"] : "";

/* Convert the Values to display to an array if needed */
        if (!is_array($Values)) {
            $Values = [$Values];
        }

/* No section, let's die */
        if ($IndicatorSections == null) {
            return 0;
        }

/* Determine indicator visual configuration */
        $OverallMin = $IndicatorSections[0]["End"];
        $OverallMax = $IndicatorSections[0]["Start"];
        foreach ($IndicatorSections as $Key => $Settings) {
            if ($Settings["End"] > $OverallMax) {
                $OverallMax = $Settings["End"];
            }
            if ($Settings["Start"] < $OverallMin) {
                $OverallMin = $Settings["Start"];
            }
        }
        $RealWidth = $Width - (count($IndicatorSections) - 1) * $SectionsMargin;
        $XScale = $RealWidth / ($OverallMax - $OverallMin);

$X1 = $X;
        $ValuesPos = [];
        foreach ($IndicatorSections as $Key => $Settings) {
            $Color = ["R" => $Settings["R"], "G" => $Settings["G"], "B" => $Settings["B"]];
            $Caption = $Settings["Caption"];
            $SubCaption = $Settings["Start"] . " - " . $Settings["End"];

$X2 = $X1 + ($Settings["End"] - $Settings["Start"]) * $XScale;

if ($Key == 0 && $DrawLeftHead) {
                $Poly = [];
                $Poly[] = $X1 - 1;
                $Poly[] = $Y;
                $Poly[] = $X1 - 1;
                $Poly[] = $Y + $Height;
                $Poly[] = $X1 - 1 - $HeadSize;
                $Poly[] = $Y + ($Height / 2);
                $this->pChartObject->drawPolygon($Poly, $Color);
                $this->pChartObject->drawLine($X1 - 2, $Y, $X1 - 2 - $HeadSize, $Y + ($Height / 2), $Color);
                $this->pChartObject->drawLine(
                    $X1 - 2,
                    $Y + $Height,
                    $X1 - 2 - $HeadSize,
                    $Y + ($Height / 2),
                    $Color
                );
            }

/* Determine the position of the breaks */
            $Break = [];
            foreach ($Values as $iKey => $Value) {
                if ($Value >= $Settings["Start"] && $Value <= $Settings["End"]) {
                    $XBreak = $X1 + ($Value - $Settings["Start"]) * $XScale;
                    $ValuesPos[$Value] = $XBreak;
                    $Break[] = floor($XBreak);
                }
            }

if ($ValueDisplay == INDICATOR_VALUE_LABEL) {
                if (!count($Break)) {
                    $this->pChartObject->drawFilledRectangle($X1, $Y, $X2, $Y + $Height, $Color);
                } else {
                    sort($Break);
                    $Poly = [];
                    $Poly[] = $X1;
                    $Poly[] = $Y;
                    $LastPointWritten = false;
                    foreach ($Break as $iKey => $Value) {
                        if ($Value - 5 >= $X1) {
                            $Poly[] = $Value - 5;
                            $Poly[] = $Y;
                        } elseif ($X1 - ($Value - 5) > 0) {
                            $Offset = $X1 - ($Value - 5);
                            $Poly = [$X1, $Y + $Offset];
                        }

$Poly[] = $Value;
                        $Poly[] = $Y + 5;

if ($Value + 5 <= $X2) {
                            $Poly[] = $Value + 5;
                            $Poly[] = $Y;
                        } elseif (($Value + 5) > $X2) {
                            $Offset = ($Value + 5) - $X2;
                            $Poly[] = $X2;
                            $Poly[] = $Y + $Offset;
                            $LastPointWritten = true;
                        }
                    }
                    if (!$LastPointWritten) {
                        $Poly[] = $X2;
                        $Poly[] = $Y;
                    }
                    $Poly[] = $X2;
                    $Poly[] = $Y + $Height;
                    $Poly[] = $X1;
                    $Poly[] = $Y + $Height;

$this->pChartObject->drawPolygon($Poly, $Color);
                }
            } else {
                $this->pChartObject->drawFilledRectangle($X1, $Y, $X2, $Y + $Height, $Color);
            }

if ($Key == count($IndicatorSections) - 1 && $DrawRightHead) {
                $Poly = [];
                $Poly[] = $X2 + 1;
                $Poly[] = $Y;
                $Poly[] = $X2 + 1;
                $Poly[] = $Y + $Height;
                $Poly[] = $X2 + 1 + $HeadSize;
                $Poly[] = $Y + ($Height / 2);
                $this->pChartObject->drawPolygon($Poly, $Color);
                $this->pChartObject->drawLine($X2 + 1, $Y, $X2 + 1 + $HeadSize, $Y + ($Height / 2), $Color);
                $this->pChartObject->drawLine(
                    $X2 + 1,
                    $Y + $Height,
                    $X2 + 1 + $HeadSize,
                    $Y + ($Height / 2),
                    $Color
                );
            }

$YOffset = 0;
            $XOffset = 0;
            if ($CaptionPosition == INDICATOR_CAPTION_INSIDE) {
                $TxtPos = $this->pChartObject->getTextBox(
                    $X1,
                    $Y + $Height + $TextPadding,
                    $CaptionFontName,
                    $CaptionFontSize,
                    0,
                    $Caption
                );
                $YOffset = ($TxtPos[0]["Y"] - $TxtPos[2]["Y"]) + $TextPadding;

if ($CaptionLayout == INDICATOR_CAPTION_EXTENDED) {
                    $TxtPos = $this->pChartObject->getTextBox(
                        $X1,
                        $Y + $Height + $TextPadding,
                        $CaptionFontName,
                        $CaptionFontSize,
                        0,
                        $SubCaption
                    );
                    $YOffset = $YOffset + ($TxtPos[0]["Y"] - $TxtPos[2]["Y"]) + $TextPadding * 2;
                }
                $XOffset = $TextPadding;
            }

if ($CaptionColorFactor == null) {
                $CaptionColor = [
                    "Align" => TEXT_ALIGN_TOPLEFT,
                    "FontName" => $CaptionFontName,
                    "FontSize" => $CaptionFontSize,
                    "R" => $CaptionR,
                    "G" => $CaptionG,
                    "B" => $CaptionB,
                    "Alpha" => $CaptionAlpha
                ];
            } else {
                $CaptionColor = [
                    "Align" => TEXT_ALIGN_TOPLEFT,
                    "FontName" => $CaptionFontName,
                    "FontSize" => $CaptionFontSize,
                    "R" => $Settings["R"] + $CaptionColorFactor,
                    "G" => $Settings["G"] + $CaptionColorFactor,
                    "B" => $Settings["B"] + $CaptionColorFactor
                ];
            }

if ($SubCaptionColorFactor == null) {
                $SubCaptionColor = [
                    "Align" => TEXT_ALIGN_TOPLEFT,
                    "FontName" => $CaptionFontName,
                    "FontSize" => $CaptionFontSize,
                    "R" => $SubCaptionR,
                    "G" => $SubCaptionG,
                    "B" => $SubCaptionB,
                    "Alpha" => $SubCaptionAlpha
                ];
            } else {
                $SubCaptionColor = [
                    "Align" => TEXT_ALIGN_TOPLEFT,
                    "FontName" => $CaptionFontName,
                    "FontSize" => $CaptionFontSize,
                    "R" => $Settings["R"] + $SubCaptionColorFactor,
                    "G" => $Settings["G"] + $SubCaptionColorFactor,
                    "B" => $Settings["B"] + $SubCaptionColorFactor
                ];
            }

$RestoreShadow = $this->pChartObject->Shadow;
            $this->pChartObject->Shadow = false;

if ($CaptionLayout == INDICATOR_CAPTION_DEFAULT) {
                $this->pChartObject->drawText($X1, $Y + $Height + $TextPadding, $Caption, $CaptionColor);
            } elseif ($CaptionLayout == INDICATOR_CAPTION_EXTENDED) {
                $TxtPos = $this->pChartObject->getTextBox(
                    $X1,
                    $Y + $Height + $TextPadding,
                    $CaptionFontName,
                    $CaptionFontSize,
                    0,
                    $Caption
                );
                $CaptionHeight = $TxtPos[0]["Y"] - $TxtPos[2]["Y"];

$this->pChartObject->drawText(
                    $X1 + $XOffset,
                    $Y + $Height - $YOffset + $TextPadding,
                    $Caption,
                    $CaptionColor
                );
                $this->pChartObject->drawText(
                    $X1 + $XOffset,
                    $Y + $Height - $YOffset + $CaptionHeight + $TextPadding * 2,
                    $SubCaption,
                    $SubCaptionColor
                );
            }

$this->pChartObject->Shadow = $RestoreShadow;

$X1 = $X2 + $SectionsMargin;
        }

$RestoreShadow = $this->pChartObject->Shadow;
        $this->pChartObject->Shadow = false;

foreach ($Values as $Key => $Value) {
            if ($Value >= $OverallMin && $Value <= $OverallMax) {
                foreach ($IndicatorSections as $Key => $Settings) {
                    if ($Value >= $Settings["Start"] && $Value <= $Settings["End"]) {
                        $X1 = $ValuesPos[$Value]; //$X + $Key*$SectionsMargin + ($Value - $OverallMin) * $XScale;

if ($ValueDisplay == INDICATOR_VALUE_BUBBLE) {
                            $TxtPos = $this->pChartObject->getTextBox(
                                $X1,
                                $Y,
                                $ValueFontName,
                                $ValueFontSize,
                                0,
                                $Value . $Unit
                            );
                            $Radius = floor(($TxtPos[1]["X"] - $TxtPos[0]["X"] + $TextPadding * 4) / 2);

$this->pChartObject->drawFilledCircle(
                                $X1,
                                $Y,
                                $Radius + 4,
                                [
                                    "R" => $Settings["R"] + 20,
                                    "G" => $Settings["G"] + 20,
                                    "B" => $Settings["B"] + 20
                                ]
                            );
                            $this->pChartObject->drawFilledCircle(
                                $X1,
                                $Y,
                                $Radius,
                                ["R" => 255, "G" => 255, "B" => 255]
                            );

$TextSettings = [
                                "Align" => TEXT_ALIGN_MIDDLEMIDDLE,
                                "FontName" => $ValueFontName,
                                "FontSize" => $ValueFontSize
                            ];
                            $this->pChartObject->drawText($X1 - 1, $Y - 1, $Value . $Unit, $TextSettings);
                        } elseif ($ValueDisplay == INDICATOR_VALUE_LABEL) {
                            $Caption = [
                                [
                                    "Format" => [
                                        "R" => $Settings["R"],
                                        "G" => $Settings["G"],
                                        "B" => $Settings["B"],
                                        "Alpha" => 100
                                    ],
                                    "Caption" => $Value . $Unit
                                ]
                            ];
                            $this->pChartObject->drawLabelBox(
                                floor($X1),
                                floor($Y) + 2,
                                "Value - " . $Settings["Caption"],
                                $Caption
                            );
                        }
                    }
                    $X1 = $X2 + $SectionsMargin;
                }
            }
        }
        $this->pChartObject->Shadow = $RestoreShadow;
    }
}

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