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<?php

//=======================================================================

// File:        JPGRAPH_PLOTMARK.PHP

// Description: Class file. Handles plotmarks

// Created:     2003-03-21

// Ver:         $Id: jpgraph_plotmark.inc.php 1106 2009-02-22 20:16:35Z ljp $

//

// Copyright (c) Aditus Consulting. All rights reserved.

//========================================================================

//===================================================

// CLASS PlotMark

// Description: Handles the plot marks in graphs

//===================================================

class PlotMark {

    public $title, $show=true;

    public $type,$weight=1;

    public $iFormatCallback="", $iFormatCallback2="";

    public $fill_color="blue";

    public $color="black", $width=4;

    private $yvalue,$xvalue='',$csimtarget,$csimwintarget='',$csimalt,$csimareas;

    private $markimg='',$iScale=1.0;

    private $oldfilename='',$iFileName='';

    private $imgdata_balls = null;

    private $imgdata_diamonds = null;

    private $imgdata_squares = null;

    private $imgdata_bevels = null;

    private $imgdata_stars = null;

    private $imgdata_pushpins = null;

    //--------------

    // CONSTRUCTOR

    function __construct() {

        $this->title = new Text();

        $this->title->Hide();

        $this->csimareas = '';

        $this->type=-1;

    }

    //---------------

    // PUBLIC METHODS

    function SetType($aType,$aFileName='',$aScale=1.0) {

        $this->type = $aType;

        if( $aType == MARK_IMG && $aFileName=='' ) {

            JpGraphError::RaiseL(23003);//('A filename must be specified if you set the mark type to MARK_IMG.');

        }

        $this->iFileName = $aFileName;

        $this->iScale = $aScale;

    }

    function SetCallback($aFunc) {

        $this->iFormatCallback = $aFunc;

    }

    function SetCallbackYX($aFunc) {

        $this->iFormatCallback2 = $aFunc;

    }

    function GetType() {

        return $this->type;

    }

    function SetColor($aColor) {

        $this->color=$aColor;

    }

    function SetFillColor($aFillColor) {

        $this->fill_color = $aFillColor;

    }

    function SetWeight($aWeight) {

        $this->weight = $aWeight;

    }

    // Synonym for SetWidth()

    function SetSize($aWidth) {

        $this->width=$aWidth;

    }

    function SetWidth($aWidth) {

        $this->width=$aWidth;

    }

    function SetDefaultWidth() {

        switch( $this->type ) {

            case MARK_CIRCLE:

            case MARK_FILLEDCIRCLE:

                $this->width=4;

                break;

            default:

                $this->width=7;

        }

    }

    function GetWidth() {

        return $this->width;

    }

    function Hide($aHide=true) {

        $this->show = !$aHide;

    }

    function Show($aShow=true) {

        $this->show = $aShow;

    }

    function SetCSIMAltVal($aY,$aX='') {

        $this->yvalue=$aY;

        $this->xvalue=$aX;

    }

    function SetCSIMTarget($aTarget,$aWinTarget='') {

        $this->csimtarget=$aTarget;

        $this->csimwintarget=$aWinTarget;

    }

    function SetCSIMAlt($aAlt) {

        $this->csimalt=$aAlt;

    }

    function GetCSIMAreas(){

        return $this->csimareas;

    }

    function AddCSIMPoly($aPts) {

        $coords = round($aPts[0]).", ".round($aPts[1]);

        $n = count($aPts)/2;

        for( $i=1; $i < $n; ++$i){

            $coords .= ", ".round($aPts[2*$i]).", ".round($aPts[2*$i+1]);

        }

        $this->csimareas="";

        if( !empty($this->csimtarget) ) {

            $this->csimareas .= "<area shape=\"poly\" coords=\"$coords\" href=\"".htmlentities($this->csimtarget)."\"";

            if( !empty($this->csimwintarget) ) {

                $this->csimareas .= " target=\"".$this->csimwintarget."\" ";

            }

            if( !empty($this->csimalt) ) {

                $tmp=sprintf($this->csimalt,$this->yvalue,$this->xvalue);

                $this->csimareas .= " title=\"$tmp\" alt=\"$tmp\"";

            }

            $this->csimareas .= " />\n";

        }

    }

    function AddCSIMCircle($x,$y,$r) {

        $x = round($x); $y=round($y); $r=round($r);

        $this->csimareas="";

        if( !empty($this->csimtarget) ) {

            $this->csimareas .= "<area shape=\"circle\" coords=\"$x,$y,$r\" href=\"".htmlentities($this->csimtarget)."\"";

            if( !empty($this->csimwintarget) ) {

                $this->csimareas .= " target=\"".$this->csimwintarget."\" ";

            }

            if( !empty($this->csimalt) ) {

                $tmp=sprintf($this->csimalt,$this->yvalue,$this->xvalue);

                $this->csimareas .= " title=\"$tmp\" alt=\"$tmp\" ";

            }

            $this->csimareas .= " />\n";

        }

    }

    function Stroke($img,$x,$y) {

        if( !$this->show ) return;

        if( $this->iFormatCallback != '' || $this->iFormatCallback2 != '' ) {

            if( $this->iFormatCallback != '' ) {

                $f = $this->iFormatCallback;

                list($width,$color,$fcolor) = call_user_func($f,$this->yvalue);

                $filename = $this->iFileName;

                $imgscale = $this->iScale;

            }

            else {

                $f = $this->iFormatCallback2;

                list($width,$color,$fcolor,$filename,$imgscale) = call_user_func($f,$this->yvalue,$this->xvalue);

                if( $filename=="" ) $filename = $this->iFileName;

                if( $imgscale=="" ) $imgscale = $this->iScale;

            }

            if( $width=="" ) $width = $this->width;

            if( $color=="" ) $color = $this->color;

            if( $fcolor=="" ) $fcolor = $this->fill_color;

        }

        else {

            $fcolor = $this->fill_color;

            $color = $this->color;

            $width = $this->width;

            $filename = $this->iFileName;

            $imgscale = $this->iScale;

        }

        if( $this->type == MARK_IMG ||

        ($this->type >= MARK_FLAG1 && $this->type <= MARK_FLAG4 ) ||

        $this->type >= MARK_IMG_PUSHPIN ) {

            // Note: For the builtin images we use the "filename" parameter

            // to denote the color

            $anchor_x = 0.5;

            $anchor_y = 0.5;

            switch( $this->type ) {

                case MARK_FLAG1:

                case MARK_FLAG2:

                case MARK_FLAG3:

                case MARK_FLAG4:

                    $this->markimg = FlagCache::GetFlagImgByName($this->type-MARK_FLAG1+1,$filename);

                    break;

                case MARK_IMG :

                    // Load an image and use that as a marker

                    // Small optimization, if we have already read an image don't

                    // waste time reading it again.

                    if( $this->markimg == '' || !($this->oldfilename === $filename) ) {

                        $this->markimg = Graph::LoadBkgImage('',$filename);

                        $this->oldfilename = $filename ;

                    }

                    break;

                case MARK_IMG_PUSHPIN:

                case MARK_IMG_SPUSHPIN:

                case MARK_IMG_LPUSHPIN:

                    if( $this->imgdata_pushpins == null ) {

                        require_once 'imgdata_pushpins.inc.php';

                        $this->imgdata_pushpins = new ImgData_PushPins();

                    }

                    $this->markimg = $this->imgdata_pushpins->GetImg($this->type,$filename);

                    list($anchor_x,$anchor_y) = $this->imgdata_pushpins->GetAnchor();

                    break;

                case MARK_IMG_SQUARE:

                    if( $this->imgdata_squares == null ) {

                        require_once 'imgdata_squares.inc.php';

                        $this->imgdata_squares = new ImgData_Squares();

                    }

                    $this->markimg = $this->imgdata_squares->GetImg($this->type,$filename);

                    list($anchor_x,$anchor_y) = $this->imgdata_squares->GetAnchor();

                    break;

                case MARK_IMG_STAR:

                    if( $this->imgdata_stars == null ) {

                        require_once 'imgdata_stars.inc.php';

                        $this->imgdata_stars = new ImgData_Stars();

                    }

                    $this->markimg = $this->imgdata_stars->GetImg($this->type,$filename);

                    list($anchor_x,$anchor_y) = $this->imgdata_stars->GetAnchor();

                    break;

                case MARK_IMG_BEVEL:

                    if( $this->imgdata_bevels == null ) {

                        require_once 'imgdata_bevels.inc.php';

                        $this->imgdata_bevels = new ImgData_Bevels();

                    }

                    $this->markimg = $this->imgdata_bevels->GetImg($this->type,$filename);

                    list($anchor_x,$anchor_y) = $this->imgdata_bevels->GetAnchor();

                    break;

                case MARK_IMG_DIAMOND:

                    if( $this->imgdata_diamonds == null ) {

                        require_once 'imgdata_diamonds.inc.php';

                        $this->imgdata_diamonds = new ImgData_Diamonds();

                    }

                    $this->markimg = $this->imgdata_diamonds->GetImg($this->type,$filename);

                    list($anchor_x,$anchor_y) = $this->imgdata_diamonds->GetAnchor();

                    break;

                case MARK_IMG_BALL:

                case MARK_IMG_SBALL:

                case MARK_IMG_MBALL:

                case MARK_IMG_LBALL:

                    if( $this->imgdata_balls == null ) {

                        require_once 'imgdata_balls.inc.php';

                        $this->imgdata_balls = new ImgData_Balls();

                    }

                    $this->markimg = $this->imgdata_balls->GetImg($this->type,$filename);

                    list($anchor_x,$anchor_y) = $this->imgdata_balls->GetAnchor();

                    break;

            }

            $w = $img->GetWidth($this->markimg);

            $h = $img->GetHeight($this->markimg);

            $dw = round($imgscale * $w );

            $dh = round($imgscale * $h );

            // Do potential rotation

            list($x,$y) = $img->Rotate($x,$y);

            $dx = round($x-$dw*$anchor_x);

            $dy = round($y-$dh*$anchor_y);

            $this->width = max($dx,$dy);

            $img->Copy($this->markimg,$dx,$dy,0,0,$dw,$dh,$w,$h);

            if( !empty($this->csimtarget) ) {

                $this->csimareas = "<area shape=\"rect\" coords=\"".

                $dx.','.$dy.','.round($dx+$dw).','.round($dy+$dh).'" '.

      "href=\"".htmlentities($this->csimtarget)."\"";

                if( !empty($this->csimwintarget) ) {

                    $this->csimareas .= " target=\"".$this->csimwintarget."\" ";

                }

                if( !empty($this->csimalt) ) {

                    $tmp=sprintf($this->csimalt,$this->yvalue,$this->xvalue);

                    $this->csimareas .= " title=\"$tmp\" alt=\"$tmp\" ";

                }

                $this->csimareas .= " />\n";

            }

            // Stroke title

            $this->title->Align("center","top");

            $this->title->Stroke($img,$x,$y+round($dh/2));

            return;

        }

        $weight = $this->weight;

        $dx=round($width/2,0);

        $dy=round($width/2,0);

        $pts=0;

        switch( $this->type ) {

            case MARK_SQUARE:

                $c[]=$x-$dx;$c[]=$y-$dy;

                $c[]=$x+$dx;$c[]=$y-$dy;

                $c[]=$x+$dx;$c[]=$y+$dy;

                $c[]=$x-$dx;$c[]=$y+$dy;

                $c[]=$x-$dx;$c[]=$y-$dy;

                $pts=5;

                break;

            case MARK_UTRIANGLE:

                ++$dx;++$dy;

                $c[]=$x-$dx;$c[]=$y+0.87*$dy; // tan(60)/2*$dx

                $c[]=$x;$c[]=$y-0.87*$dy;

                $c[]=$x+$dx;$c[]=$y+0.87*$dy;

                $c[]=$x-$dx;$c[]=$y+0.87*$dy; // tan(60)/2*$dx

                $pts=4;

                break;

            case MARK_DTRIANGLE:

                ++$dx;++$dy;

                $c[]=$x;$c[]=$y+0.87*$dy; // tan(60)/2*$dx

                $c[]=$x-$dx;$c[]=$y-0.87*$dy;

                $c[]=$x+$dx;$c[]=$y-0.87*$dy;

                $c[]=$x;$c[]=$y+0.87*$dy; // tan(60)/2*$dx

                $pts=4;

                break;

            case MARK_DIAMOND:

                $c[]=$x;$c[]=$y+$dy;

                $c[]=$x-$dx;$c[]=$y;

                $c[]=$x;$c[]=$y-$dy;

                $c[]=$x+$dx;$c[]=$y;

                $c[]=$x;$c[]=$y+$dy;

                $pts=5;

                break;

            case MARK_LEFTTRIANGLE:

                $c[]=$x;$c[]=$y;

                $c[]=$x;$c[]=$y+2*$dy;

                $c[]=$x+$dx*2;$c[]=$y;

                $c[]=$x;$c[]=$y;

                $pts=4;

                break;

            case MARK_RIGHTTRIANGLE:

                $c[]=$x-$dx*2;$c[]=$y;

                $c[]=$x;$c[]=$y+2*$dy;

                $c[]=$x;$c[]=$y;

                $c[]=$x-$dx*2;$c[]=$y;

                $pts=4;

                break;

            case MARK_FLASH:

                $dy *= 2;

                $c[]=$x+$dx/2; $c[]=$y-$dy;

                $c[]=$x-$dx+$dx/2; $c[]=$y+$dy*0.7-$dy;

                $c[]=$x+$dx/2; $c[]=$y+$dy*1.3-$dy;

                $c[]=$x-$dx+$dx/2; $c[]=$y+2*$dy-$dy;

                $img->SetLineWeight($weight);

                $img->SetColor($color);

                $img->Polygon($c);

                $img->SetLineWeight(1);

                $this->AddCSIMPoly($c);

                break;

        }

        if( $pts>0 ) {

            $this->AddCSIMPoly($c);

            $img->SetLineWeight($weight);

            $img->SetColor($fcolor);

            $img->FilledPolygon($c);

            $img->SetColor($color);

            $img->Polygon($c);

            $img->SetLineWeight(1);

        }

        elseif( $this->type==MARK_CIRCLE ) {

            $img->SetColor($color);

            $img->Circle($x,$y,$width);

            $this->AddCSIMCircle($x,$y,$width);

        }

        elseif( $this->type==MARK_FILLEDCIRCLE ) {

            $img->SetColor($fcolor);

            $img->FilledCircle($x,$y,$width);

            $img->SetColor($color);

            $img->Circle($x,$y,$width);

            $this->AddCSIMCircle($x,$y,$width);

        }

        elseif( $this->type==MARK_CROSS ) {

            // Oversize by a pixel to match the X

            $img->SetColor($color);

            $img->SetLineWeight($weight);

            $img->Line($x,$y+$dy+1,$x,$y-$dy-1);

            $img->Line($x-$dx-1,$y,$x+$dx+1,$y);

            $this->AddCSIMCircle($x,$y,$dx);

        }

        elseif( $this->type==MARK_X ) {

            $img->SetColor($color);

            $img->SetLineWeight($weight);

            $img->Line($x+$dx,$y+$dy,$x-$dx,$y-$dy);

            $img->Line($x-$dx,$y+$dy,$x+$dx,$y-$dy);

            $this->AddCSIMCircle($x,$y,$dx+$dy);

        }

        elseif( $this->type==MARK_STAR ) {

            $img->SetColor($color);

            $img->SetLineWeight($weight);

            $img->Line($x+$dx,$y+$dy,$x-$dx,$y-$dy);

            $img->Line($x-$dx,$y+$dy,$x+$dx,$y-$dy);

            // Oversize by a pixel to match the X

            $img->Line($x,$y+$dy+1,$x,$y-$dy-1);

            $img->Line($x-$dx-1,$y,$x+$dx+1,$y);

            $this->AddCSIMCircle($x,$y,$dx+$dy);

        }

        // Stroke title

        $this->title->Align("center","center");

        $this->title->Stroke($img,$x,$y);

    }

} // Class

//========================================================================

// CLASS ImgData

// Description: Base class for all image data classes that contains the

// real image data.

//========================================================================

class ImgData {

    protected $name = '';  // Each subclass gives a name

    protected $an = array();  // Data array names

    protected $colors = array(); // Available colors

    protected $index  = array(); // Index for colors

    protected $maxidx = 0 ;  // Max color index

    protected $anchor_x=0.5, $anchor_y=0.5 ;    // Where is the center of the image

    function __construct() {

        // Empty

    }

    // Create a GD image from the data and return a GD handle

    function GetImg($aMark,$aIdx) {

        $n = $this->an[$aMark];

        if( is_string($aIdx) ) {

            if( !in_array($aIdx,$this->colors) ) {

                JpGraphError::RaiseL(23001,$this->name,$aIdx);//('This marker "'.($this->name).'" does not exist in color: '.$aIdx);

            }

            $idx = $this->index[$aIdx];

        }

        elseif( !is_integer($aIdx) ||

        (is_integer($aIdx) && $aIdx > $this->maxidx ) ) {

            JpGraphError::RaiseL(23002,$this->name);//('Mark color index too large for marker "'.($this->name).'"');

        }

        else

        $idx = $aIdx ;

        return Image::CreateFromString(base64_decode($this->{$n}[$idx][1]));

    }

    function GetAnchor() {

        return array($this->anchor_x,$this->anchor_y);

    }

}

// Keep a global flag cache to reduce memory usage

$_gFlagCache=array(

1 => null,

2 => null,

3 => null,

4 => null,

);

// Only supposed to b called as statics

class FlagCache {

    static function GetFlagImgByName($aSize,$aName) {

        global $_gFlagCache;

        require_once('jpgraph_flags.php');

        if( $_gFlagCache[$aSize] === null ) {

            $_gFlagCache[$aSize] = new FlagImages($aSize);

        }

        $f = $_gFlagCache[$aSize];

        $idx = $f->GetIdxByName($aName,$aFullName);

        return $f->GetImgByIdx($idx);

    }

}

?>