<?php

class jpgrapherror
{

	function install( $aErrObject )
	{
		global $__jpg_err;
		$__jpg_err = $aErrObject;
	}

	function raise( $aMsg, $aHalt = true )
	{
		global $__jpg_err;
		$tmp = new $__jpg_err( );
		$tmp->raise( $aMsg, $aHalt );
	}

}

class jpgrapherrobject
{

	var $iTitle = "JpGraph Error";
	var $iDest = false;

	function jpgrapherrobject( )
	{
	}

	function settitle( $aTitle )
	{
		$this->iTitle = $aTitle;
	}

	function setstrokedest( $aDest )
	{
		$this->iDest = $aDest;
	}

	function raise( $aMsg, $aHalt = true )
	{
		$aMsg = $this->iTitle." ".$aMsg;
		if ( $this->iDest )
		{
			$f = @fopen( $this->iDest, "a" );
			if ( $f )
			{
				@fwrite( $f, $aMsg );
				@fclose( $f );
			}
		}
		if ( $aHalt )
		{
			exit( );
		}
	}

}

class jpgrapherrobjectimg extends jpgrapherrobject
{

	var $iTitle = "JpGraph Error";
	var $iDest = false;

	function raise( $aMsg, $aHalt = true )
	{
		$img_iconerror = "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";
		if ( function_exists( "imagetypes" ) )
		{
			$supported = imagetypes( );
		}
		else
		{
			$supported = 0;
		}
		if ( !function_exists( "imagecreatefromstring" ) )
		{
			$supported = 0;
		}
		if ( ob_get_length( ) || headers_sent( ) || !( $supported & IMG_PNG ) )
		{
			exit( $this->iTitle." ".$aMsg );
		}
		$aMsg = wordwrap( $aMsg, 55 );
		$lines = substr_count( $aMsg, "\n" );
		$erricon = image::createfromstring( base64_decode( $img_iconerror ) );
		$w = 400;
		$h = 100 + 15 * max( 0, $lines - 3 );
		$img = new image( $w, $h );
		$img->setcolor( "gray" );
		$img->filledrectangle( 5, 5, $w - 1, $h - 1, 10 );
		$img->setcolor( "gray:0.7" );
		$img->filledrectangle( 5, 5, $w - 3, $h - 3, 10 );
		$img->setcolor( "lightblue" );
		$img->filledrectangle( 1, 1, $w - 5, $h - 5 );
		$img->copycanvash( $img->img, $erricon, 5, 30, 0, 0, 40, 40 );
		$img->setcolor( "black" );
		$img->rectangle( 1, 1, $w - 5, $h - 5 );
		$img->rectangle( 0, 0, $w - 4, $h - 4 );
		$img->setcolor( "darkred" );
		$y = 3;
		for ( ;	$y < 18;	$y += 2	)
		{
			$img->line( 1, $y, $w - 6, $y );
		}
		$img->setcolor( "white" );
		$img->line( 2, 2, 2, $h - 5 );
		$img->line( 2, 2, $w - 6, 2 );
		$img->setcolor( "darkgray" );
		$img->line( 2, $h - 6, $w - 5, $h - 6 );
		$img->line( 3, $h - 7, $w - 5, $h - 7 );
		$m = floor( $w / 2 - 5 );
		$l = 100;
		$img->setcolor( "lightgray:1.3" );
		$img->filledrectangle( $m - $l, 2, $m + $l, 16 );
		$img->setcolor( "darkred" );
		$img->setfont( FF_FONT2, FS_BOLD );
		$img->stroketext( $m - 50, 15, $this->iTitle );
		$img->setcolor( "black" );
		$img->setfont( FF_FONT1, FS_NORMAL );
		$txt = new text( $aMsg, 52, 25 );
		$txt->align( "left", "top" );
		$txt->stroke( $img );
		if ( $this->iDest )
		{
			$img->stream( $this->iDest );
		}
		else
		{
			$img->headers( );
			$img->stream( );
		}
		if ( $aHalt )
		{
			exit( );
		}
	}

}

class languageconv
{

	var $g2312 = null;

	function convert( $aTxt, $aFF )
	{
		if ( LANGUAGE_CYRILLIC )
		{
			if ( CYRILLIC_FROM_WINDOWS )
			{
				$aTxt = convert_cyr_string( $aTxt, "w", "k" );
			}
			$isostring = convert_cyr_string( $aTxt, "k", "i" );
			$unistring = languageconv::iso2uni( $isostring );
			return $unistring;
		}
		else if ( $aFF === FF_SIMSUN )
		{
			if ( $this->g2312 == null )
			{
				include_once( "jpgraph_gb2312.php" );
				$this->g2312 = new gb2312toutf8( );
			}
			return $this->g2312->gb2utf8( $aTxt );
		}
		else if ( $aFF === FF_CHINESE )
		{
			if ( !function_exists( "iconv" ) )
			{
				jpgrapherror::raise( "Usage of FF_CHINESE (FF_BIG5) font family requires that your PHP setup has the iconv() function. By default this is not compiled into PHP (needs the \"--width-iconv\" when configured)." );
			}
			return iconv( "BIG5", "UTF-8", $aTxt );
		}
		else
		{
			return $aTxt;
		}
	}

	function iso2uni( $isoline )
	{
		$uniline = "";
		$i = 0;
		for ( ;	$i < strlen( $isoline );	++$i	)
		{
			$thischar = substr( $isoline, $i, 1 );
			$charcode = ord( $thischar );
			$uniline .= 175 < $charcode ? "&#".( 1040 + ( $charcode - 176 ) ).";" : $thischar;
		}
		return $uniline;
	}

}

class jpgtimer
{

	var $start;
	var $idx;

	function jpgtimer( )
	{
		$this->idx = 0;
	}

	function push( )
	{
		list( $ms, $s ) = explode( " ", microtime( ) );
		$this->start[$this->idx++] = floor( $ms * 1000 ) + 1000 * $s;
	}

	function pop( )
	{
		assert( 0 < $this->idx );
		list( $ms, $s ) = explode( " ", microtime( ) );
		$etime = floor( $ms * 1000 ) + 1000 * $s;
		--$this->idx;
		return $etime - $this->start[$this->idx];
	}

}

class datelocale
{

	var $iLocale = "C";
	var $iDayAbb = null;
	var $iShortDay = null;
	var $iShortMonth = null;
	var $iMonthName = null;

	function datelocale( )
	{
		settype( $this->iDayAbb, "array" );
		settype( $this->iShortDay, "array" );
		settype( $this->iShortMonth, "array" );
		settype( $this->iMonthName, "array" );
		$this->set( "C" );
	}

	function set( $aLocale )
	{
		if ( in_array( $aLocale, array_keys( $this->iDayAbb ) ) )
		{
			$this->iLocale = $aLocale;
			return TRUE;
		}
		$pLocale = setlocale( LC_TIME, 0 );
		$res = @setlocale( LC_TIME, $aLocale );
		if ( !$res )
		{
			jpgrapherror::raise( "You are trying to use the locale ({$aLocale}) which your PHP installation does not support. Hint: Use '' to indicate the default locale for this geographic region." );
			return FALSE;
		}
		$this->iLocale = $aLocale;
		$i = 0;
		$ofs = 0 - strftime( "%w" );
		for ( ;	$i < 7;	++$i,	++$ofs	)
		{
			$day = strftime( "%a", strtotime( "{$ofs} day" ) );
			$day[0] = strtoupper( $day[0] );
			$this->iDayAbb[$aLocale][] = $day[0];
			$this->iShortDay[$aLocale][] = $day;
		}
		$i = 1;
		for ( ;	$i <= 12;	++$i	)
		{
			list( $short, $full ) = explode( "|", strftime( "%b|%B", strtotime( "2001-{$i}-01" ) ) );
			$this->iShortMonth[$aLocale][] = ucfirst( $short );
			$this->iMonthName[$aLocale][] = ucfirst( $full );
		}
		setlocale( LC_TIME, $pLocale );
		return TRUE;
	}

	function getdayabb( )
	{
		return $this->iDayAbb[$this->iLocale];
	}

	function getshortday( )
	{
		return $this->iShortDay[$this->iLocale];
	}

	function getshortmonth( )
	{
		return $this->iShortMonth[$this->iLocale];
	}

	function getshortmonthname( $aNbr )
	{
		return $this->iShortMonth[$this->iLocale][$aNbr];
	}

	function getlongmonthname( $aNbr )
	{
		return $this->iMonthName[$this->iLocale][$aNbr];
	}

	function getmonth( )
	{
		return $this->iMonthName[$this->iLocale];
	}

}

class funcgenerator
{

	var $iFunc = "";
	var $iXFunc = "";
	var $iMin;
	var $iMax;
	var $iStepSize;

	function funcgenerator( $aFunc, $aXFunc = "" )
	{
		$this->iFunc = $aFunc;
		$this->iXFunc = $aXFunc;
	}

	function e( $aXMin, $aXMax, $aSteps = 50 )
	{
		$this->iMin = $aXMin;
		$this->iMax = $aXMax;
		$this->iStepSize = ( $aXMax - $aXMin ) / $aSteps;
		if ( $this->iXFunc != "" )
		{
			$t = "for(\$i=".$aXMin."; \$i<=".$aXMax."; \$i += ".$this->iStepSize.") {\$ya[]=".$this->iFunc.";\$xa[]=".$this->iXFunc.";}";
		}
		else if ( $this->iFunc != "" )
		{
			$t = "for(\$x=".$aXMin."; \$x<=".$aXMax."; \$x += ".$this->iStepSize.") {\$ya[]=".$this->iFunc.";\$xa[]=\$x;} \$x=".$aXMax.";\$ya[]=".$this->iFunc.";\$xa[]=\$x;";
		}
		else
		{
			jpgrapherror::raise( "FuncGenerator : No function specified. " );
		}
		@eval( $t );
		if ( empty( $xa ) || empty( $ya ) )
		{
			jpgrapherror::raise( "FuncGenerator : Syntax error in function specification " );
		}
		return array(
			$xa,
			$ya
		);
	}

}

class footer
{

	var $left;
	var $center;
	var $right;
	var $iLeftMargin = 3;
	var $iRightMargin = 3;
	var $iBottomMargin = 3;

	function footer( )
	{
		$this->left = new text( );
		$this->left->paragraphalign( "left" );
		$this->center = new text( );
		$this->center->paragraphalign( "center" );
		$this->right = new text( );
		$this->right->paragraphalign( "right" );
	}

	function stroke( $aImg )
	{
		$y = $aImg->height - $this->iBottomMargin;
		$x = $this->iLeftMargin;
		$this->left->align( "left", "bottom" );
		$this->left->stroke( $aImg, $x, $y );
		$x = ( $aImg->width - $this->iLeftMargin - $this->iRightMargin ) / 2;
		$this->center->align( "center", "bottom" );
		$this->center->stroke( $aImg, $x, $y );
		$x = $aImg->width - $this->iRightMargin;
		$this->right->align( "right", "bottom" );
		$this->right->stroke( $aImg, $x, $y );
	}

}

class graph
{

	var $cache = null;
	var $img = null;
	var $plots = array( );
	var $y2plots = array( );
	var $ynplots = array( );
	var $xscale = null;
	var $yscale = null;
	var $y2scale = null;
	var $ynscale = array( );
	var $iIcons = array( );
	var $cache_name;
	var $xgrid = null;
	var $ygrid = null;
	var $y2grid = null;
	var $yngrid = array( );
	var $doframe = true;
	var $frame_color = array
	(
		0 => 0,
		1 => 0,
		2 => 0
	);
	var $frame_weight = 1;
	var $boxed = false;
	var $box_color = array
	(
		0 => 0,
		1 => 0,
		2 => 0
	);
	var $box_weight = 1;
	var $doshadow = false;
	var $shadow_width = 4;
	var $shadow_color = array
	(
		0 => 102,
		1 => 102,
		2 => 102
	);
	var $xaxis = null;
	var $yaxis = null;
	var $y2axis = null;
	var $ynaxis = array( );
	var $margin_color = array
	(
		0 => 200,
		1 => 200,
		2 => 200
	);
	var $plotarea_color = array
	(
		0 => 255,
		1 => 255,
		2 => 255
	);
	var $title;
	var $subtitle;
	var $subsubtitle;
	var $axtype = "linlin";
	var $xtick_factor;
	var $texts = null;
	var $y2texts = null;
	var $lines = null;
	var $y2lines = null;
	var $bands = null;
	var $y2bands = null;
	var $text_scale_off = 0;
	var $text_scale_abscenteroff = -1;
	var $background_image = "";
	var $background_image_type = -1;
	var $background_image_format = "png";
	var $background_image_bright = 0;
	var $background_image_contr = 0;
	var $background_image_sat = 0;
	var $image_bright = 0;
	var $image_contr = 0;
	var $image_sat = 0;
	var $inline;
	var $showcsim = 0;
	var $csimcolor = "red";
	var $grid_depth = DEPTH_BACK;
	var $iAxisStyle = AXSTYLE_SIMPLE;
	var $iCSIMdisplay = false;
	var $iHasStroked = false;
	var $footer;
	var $csimcachename = "";
	var $csimcachetimeout = 0;
	var $iDoClipping = false;
	var $y2orderback = true;
	var $tabtitle;
	var $bkg_gradtype = -1;
	var $bkg_gradstyle = BGRAD_MARGIN;
	var $bkg_gradfrom = "navy";
	var $bkg_gradto = "silver";
	var $titlebackground = false;