<?php

// Pandora FMS - http://pandorafms.com
// ==================================================
// Copyright (c) 2005-2011 Artica Soluciones Tecnologicas
// Please see http://pandorafms.org for full contribution list

// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation for version 2.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

include_once('functions_utils.php');
include_once('../functions.php');
include_once('../functions_html.php');

/* pChart library inclusions */
include_once("pChart/pData.class.php");
include_once("pChart/pDraw.class.php");
include_once("pChart/pImage.class.php");
include_once("pChart/pPie.class.php");
include_once("pChart/pScatter.class.php");
include_once("pChart/pRadar.class.php");

$graph_type = get_parameter('graph_type', '');
$width = get_parameter('width', 700);
$height = get_parameter('height', 300);
$xaxisname = get_parameter('xaxisname', '');
$yaxisname = get_parameter('yaxisname', '');
$title = get_parameter('title', '');
$data = json_decode(safe_output(get_parameter('data')), true);
$legend = json_decode(safe_output(get_parameter('legend')), true);

$id_graph = get_parameter('id_graph', false);

if ($id_graph) {
	$graph = unserialize_in_temp($id_graph, false);

	if (isset($graph)) {
		$data = $graph['data'];
		$width = $graph['width'];
		$height = $graph['height'];
		$colors = $graph['color'];
		$legend = $graph['legend'];
/*
	$colors = array();
	$colors['pep1'] = array('border' => '#000000', 'color' => '#000000', 'alpha' => 50);
	$colors['pep2'] = array('border' => '#ff7f00', 'color' => '#ff0000', 'alpha' => 50);
	$colors['pep3'] = array('border' => '#ff0000', 'color' => '#00ff00', 'alpha' => 50);
	$colors['pep4'] = array('border' => '#000000', 'color' => '#0000ff', 'alpha' => 50);
*/
		$rgb_color = array();
		foreach($colors as $i => $color) {		
			$rgb['border'] = html2rgb($color['border']);
			$rgb_color[$i]['border']['R'] = $rgb['border'][0];
			$rgb_color[$i]['border']['G'] = $rgb['border'][1];
			$rgb_color[$i]['border']['B'] = $rgb['border'][2];
			
			$rgb['color'] = html2rgb($color['color']);
			$rgb_color[$i]['color']['R'] = $rgb['color'][0];
			$rgb_color[$i]['color']['G'] = $rgb['color'][1];
			$rgb_color[$i]['color']['B'] = $rgb['color'][2];
			
			$rgb_color[$i]['alpha'] = $color['alpha'];
		}
	}
}


if($graph_type != 'pie3d' && $graph_type != 'pie2d') {
	
	$pixels_between_xdata = 25;
	$max_xdata_display = round($width / $pixels_between_xdata);
	$ndata = count($data);
	if($max_xdata_display > $ndata) {
		$xdata_display = $ndata;
	}
	else {
		$xdata_display = $max_xdata_display;
	}
	
	$step = round($ndata/$xdata_display);
	$c = 0;
	
	foreach($data as $i => $d) {
		$data_values[] = $d;
		
		
		if (($c % $step) == 0) {
			$data_keys[] = $i;
		}
		else {
			$data_keys[] = "";
		}
		
		$c++;
	}
	//debugPrint($data_values);
}

switch($graph_type) {
	case 'pie3d':
	case 'pie2d':
			pch_pie_graph($graph_type, array_values($data), array_keys($data), $width, $height);
			break;
	case 'polar':
	case 'radar':
			pch_radar_graph($graph_type, $data_values, $data_keys, $width, $height);
			break;
	case 'hbar':
			pch_horizontal_graph($graph_type, $data_keys, $data_values, $width, $height, $xaxisname, $yaxisname);
			break;
	case 'progress':
			pch_progress_graph($graph_type, $data_keys, $data_values, $width, $height, $xaxisname, $yaxisname);
			break;
	case 'vbar':
			pch_bar_graph($graph_type, $data_keys, $data_values, $width, $height, $rgb_color, $xaxisname, $yaxisname);
			break;
	case 'area':
	case 'spline':
			pch_vertical_graph($graph_type, $data_keys, $data_values, $width, $height, $rgb_color, $xaxisname, $yaxisname, false, $legend);
			break;
	case 'threshold':
			pch_threshold_graph($graph_type, $data_keys, $data_values, $width, $height, $xaxisname, $yaxisname, $title);
			break;
	case 'scatter':
			pch_scatter_graph($data_keys, $data_values, $width, $height, $xaxisname, $yaxisname);
			break;
}

function pch_pie_graph ($graph_type, $data_values, $legend_values, $width, $height) {
	 /* CAT:Pie charts */

	 /* Create and populate the pData object */
	 $MyData = new pData();   
	 $MyData->addPoints($data_values,"ScoreA");  
	 $MyData->setSerieDescription("ScoreA","Application A");

	 $legend_values = array('日本語', '九州', '訓読み', '北海道');
	 /* Define the absissa serie */
	 $MyData->addPoints($legend_values,"Labels");
	 $MyData->setAbscissa("Labels");
	 
	 /* Create the pChart object */
	 $myPicture = new pImage($width,$height,$MyData,TRUE);

	 /* Set the default font properties */ 
	 $myPicture->setFontProperties(array("FontName"=>"../fonts/code.ttf","FontSize"=>8,"R"=>80,"G"=>80,"B"=>80));

	 /* Create the pPie object */ 
	 $PieChart = new pPie($myPicture,$MyData);

	 /* Draw an AA pie chart */
	 switch($graph_type) {
		 case "pie2d":
			    $PieChart->draw2DPie($width/4,$height/2,array("DataGapAngle"=>0,"DataGapRadius"=>0, "Border"=>FALSE, "BorderR"=>200, "BorderG"=>200, "BorderB"=>200, "Radius"=>$width/4, "ValueR"=>0, "ValueG"=>0, "ValueB"=>0));
				break;
		 case "pie3d":
			    $PieChart->draw3DPie($width/4,$height/2,array("DataGapAngle"=>10,"DataGapRadius"=>6, "Border"=>TRUE, "Radius"=>$width/4, "ValueR"=>0, "ValueG"=>0, "ValueB"=>0, "WriteValues"=>FALSE));
				break;
	 }

	 /* Write down the legend next to the 2nd chart*/
	 $PieChart->drawPieLegend($width/1.5,$height/4, array("R"=>255,"G"=>255,"B"=>255)); 
 
	 /* Enable shadow computing */ 
	 $myPicture->setShadow(TRUE,array("X"=>3,"Y"=>3,"R"=>0,"G"=>0,"B"=>0,"Alpha"=>10));
		 
	 /* Render the picture */
	 $myPicture->stroke(); 
}

function pch_radar_graph ($graph_type, $data_values, $legend_values, $width, $height) {
	 /* CAT:Radar/Polar charts */

	 /* Create and populate the pData object */
	 $MyData = new pData();   
	 $MyData->addPoints($data_values,"ScoreA");  
	 $MyData->setSerieDescription("ScoreA","Application A");

	 /* Define the absissa serie */
	 $MyData->addPoints($legend_values,"Labels");
	 $MyData->setAbscissa("Labels");
	 
	 /* Create the pChart object */
	 $myPicture = new pImage($width,$height,$MyData,TRUE);

	 /* Set the default font properties */ 
	 $myPicture->setFontProperties(array("FontName"=>"../fonts/code.ttf","FontSize"=>8,"R"=>80,"G"=>80,"B"=>80));

	 /* Create the pRadar object */ 
	 $SplitChart = new pRadar();

	 /* Draw a radar chart */ 
	 $myPicture->setGraphArea(20,25,$width-10,$height-10);
 
	 /* Draw an AA pie chart */
	 switch($graph_type) {
		 case "radar":
				$Options = array("SkipLabels"=>0,"LabelPos"=>RADAR_LABELS_HORIZONTAL, "LabelMiddle"=>FALSE,"Layout"=>RADAR_LAYOUT_STAR,"BackgroundGradient"=>array("StartR"=>255,"StartG"=>255,"StartB"=>255,"StartAlpha"=>100,"EndR"=>207,"EndG"=>227,"EndB"=>125,"EndAlpha"=>50), "FontName"=>"../fonts/code.ttf","FontSize"=>6);
			    $SplitChart->drawRadar($myPicture,$MyData,$Options); 
				break;
		 case "polar":
				$Options = array("Layout"=>RADAR_LAYOUT_CIRCLE,"BackgroundGradient"=>array("StartR"=>255,"StartG"=>255,"StartB"=>255,"StartAlpha"=>100,"EndR"=>207,"EndG"=>227,"EndB"=>125,"EndAlpha"=>50), "FontName"=>"../fonts/code.ttf","FontSize"=>6); 
 			    $SplitChart->drawRadar($myPicture,$MyData,$Options); 
				break;
	 }
		 
	 /* Render the picture */
	 $myPicture->stroke(); 
}

/* TOFIX */
function pch_bar_graph ($graph_type, $index, $data, $width, $height, $rgb_color = false, $xaxisname = "", $yaxisname = "", $show_values = false, $show_legend = true) {
	/* CAT: Vertical Bar Chart */
     if(is_array($data[0])) {
	 	$data2 = array();
		foreach($data as $i =>$values) {
			$c = 0;
			foreach($values as $value) {
				$data2[$index[$c]][$i] = $value;
				$c++;
			}
		}
		$data = $data2;
	 }
	 else {
		$data = array($data);
	 }

	 /* Create and populate the pData object */
	 $MyData = new pData();
	 foreach($data as $i => $values) {
		$MyData->addPoints($values,"bar");
		if($rgb_color !== false) {
			$MyData->setPalette($i, 
					array("R" => $rgb_color[$i]['color']["R"], 
						"G" => $rgb_color[$i]['color']["G"], 
						"B" => $rgb_color[$i]['color']["B"],
						"BorderR" => $rgb_color[$i]['border']["R"], 
						"BorderG" => $rgb_color[$i]['border']["G"], 
						"BorderB" => $rgb_color[$i]['border']["B"], 
						"Alpha" => $rgb_color[$i]['alpha']));	
		}
	 }

	 $MyData->setAxisName(0,$yaxisname);
	 $MyData->addPoints($index,"Xaxis");
	 $MyData->setSerieDescription("Xaxis", $xaxisname);
	 $MyData->setAbscissa("Xaxis");

	 /* Create the pChart object */
	 $myPicture = new pImage($width,$height,$MyData);

	 /* Turn of Antialiasing */
	 $myPicture->Antialias = FALSE;

	 /* Add a border to the picture */
	 //$myPicture->drawRectangle(0,0,$width,$height,array("R"=>0,"G"=>0,"B"=>0));

	 /* Set the default font */
	 $myPicture->setFontProperties(array("FontName"=>"../fonts/code.ttf","FontSize"=>10));

	 /* Define the chart area */
	 $myPicture->setGraphArea(30,20,$width,$height-100);

	 /* Draw the scale */
	 // TODO: AvoidTickWhenEmpty = FALSE When the distance between two ticks will be less than 50 px
	 // TODO: AvoidTickWhenEmpty = TRUE When the distance between two ticks will be greater than 50 px
	 $scaleSettings = array("AvoidTickWhenEmpty" => FALSE, "AvoidGridWhenEmpty" => FALSE, "GridR"=>200,"GridG"=>200,"GridB"=>200,"DrawSubTicks"=>TRUE,"CycleBackground"=>TRUE, "Mode"=>SCALE_MODE_START0, "XMargin" => 40, "LabelRotation" => 90);
	 $myPicture->drawScale($scaleSettings);

	 if($show_legend) {
		/* Write the chart legend */
		$myPicture->drawLegend($height/2,$width/1.8,array("Style"=>LEGEND_NOBORDER,"Mode"=>LEGEND_HORIZONTAL));
	 }
	 
	 /* Turn on shadow computing */ 
	 $myPicture->setShadow(TRUE,array("X"=>0,"Y"=>1,"R"=>0,"G"=>0,"B"=>0,"Alpha"=>10));

	 /* Draw the chart */
	 $settings = array("ForceTransparency"=>"-1", "Gradient"=>TRUE,"GradientMode"=>GRADIENT_EFFECT_CAN,"DisplayValues"=>$show_values,"DisplayZeroValues"=>FALSE,"DisplayR"=>100,"DisplayG"=>100,"DisplayB"=>100,"DisplayShadow"=>TRUE,"Surrounding"=>5,"AroundZero"=>FALSE);
	 
	 switch($graph_type) {
		case "vbar":
				$myPicture->drawBarChart($settings);
				break;
	 }

	 /* Render the picture */
	 $myPicture->stroke(); 
}

function pch_vertical_graph ($graph_type, $index, $data, $width, $height, $rgb_color = false, $xaxisname = "", $yaxisname = "", $show_values = false, $legend = array()) {
	/* CAT:Vertical Charts */
	if(!is_array($legend) || empty($legend)) {
		unset($legend);
	}
	 /*$legend=array('pep1' => 'pep1','pep2' => 'pep2','pep3' => 'pep3','pep4' => 'pep4');
	 $data=array(array('pep1' => 1, 'pep2' => 1, 'pep3' => 3, 'pep4' => 3), array('pep1' => 1, 'pep2' => 3, 'pep3' => 1,'pep4' => 4), array('pep1' => 3, 'pep2' => 1, 'pep3' => 1,'pep4' =>1), array('pep1' => 1, 'pep2' =>1, 'pep3' =>1,'pep4' =>0));
	 $index=array(1,2,3,4);
     */
     if(is_array(reset($data))) {
	 	$data2 = array();
		foreach($data as $i =>$values) {
			$c = 0;
			foreach($values as $i2 => $value) {
				$data2[$i2][$i] = $value;
				$c++;
			}
		}
		$data = $data2;
	 }
	 else {
		$data = array($data);
	 }

	 /* Create and populate the pData object */
	 $MyData = new pData();
	 //debugPrint($data);
	 foreach($data as $i => $values) {
		 if(isset($legend)) {
			$point_id = $legend[$i];
		 }
		 else {
			$point_id = $i;
		 }
		 
		$MyData->addPoints($values,$point_id);
		if($rgb_color !== false) {
			$MyData->setPalette($point_id, 
					array("R" => $rgb_color[$i]['color']["R"], 
						"G" => $rgb_color[$i]['color']["G"], 
						"B" => $rgb_color[$i]['color']["B"],
						"BorderR" => $rgb_color[$i]['border']["R"], 
						"BorderG" => $rgb_color[$i]['border']["G"], 
						"BorderB" => $rgb_color[$i]['border']["B"], 
						"Alpha" => $rgb_color[$i]['alpha']));	
		}
	 }

	 //$MyData->addPoints($data,"Yaxis");
	 $MyData->setAxisName(0,$yaxisname);
	 $MyData->addPoints($index,"Xaxis");
	 $MyData->setSerieDescription("Xaxis", $xaxisname);
	 $MyData->setAbscissa("Xaxis");

	 /* Create the pChart object */
	 $myPicture = new pImage($width,$height,$MyData);

	 /* Turn of Antialiasing */
	 $myPicture->Antialias = FALSE;

	 /* Add a border to the picture */
	 //$myPicture->drawRectangle(0,0,$width,$height,array("R"=>0,"G"=>0,"B"=>0));

	 /* Set the default font */
	 $myPicture->setFontProperties(array("FontName"=>"../fonts/code.ttf","FontSize"=>7));

	 /* Define the chart area */
	 $myPicture->setGraphArea(30,20,$width,$height-100);

	 /* Draw the scale */
	 $scaleSettings = array("GridR"=>200,"GridG"=>200,"GridB"=>200,"DrawSubTicks"=>TRUE,"CycleBackground"=>TRUE, "Mode"=>SCALE_MODE_START0, "XMargin" => 40, "LabelRotation" => 90);
	 $myPicture->drawScale($scaleSettings);
	
	 if(isset($legend)) {
		/* Write the chart legend */
		$myPicture->drawLegend($height/2,$height-20,array("Style"=>LEGEND_NOBORDER,"Mode"=>LEGEND_HORIZONTAL));
	 }
	 
	 /* Turn on shadow computing */ 
	 //$myPicture->setShadow(TRUE,array("X"=>0,"Y"=>1,"R"=>0,"G"=>0,"B"=>0,"Alpha"=>10));

	 /* Draw the chart */
	 $settings = array("ForceTransparency"=>"-1",
	 	"Gradient"=>TRUE,
	 	"GradientMode"=>GRADIENT_EFFECT_CAN,
	 	"DisplayValues"=>$show_values,
	 	"DisplayZeroValues"=>FALSE,
	 	"DisplayR"=>100,
	 	"DisplayZeros"=> FALSE,
	 	"DisplayG"=>100,"DisplayB"=>100,"DisplayShadow"=>TRUE,"Surrounding"=>5,"AroundZero"=>FALSE);
	 
	 switch($graph_type) {
		case "area":
				$myPicture->drawAreaChart($settings);
				break;
		case "line":
				$myPicture->drawLineChart($settings);
				break;
	 }
	 
	 /* Render the picture */
	 $myPicture->stroke(); 
}

function pch_threshold_graph ($graph_type, $index, $data, $width, $height, $xaxisname = "", $yaxisname = "", $title = "", $show_values = false, $show_legend = false) {
	 /* CAT:Threshold Chart */

	/* Create and populate the pData object */
	 $MyData = new pData();  
	 $MyData->addPoints($data,"DEFCA");
	 $MyData->setAxisName(0,$yaxisname);
	 $MyData->setAxisDisplay(0,AXIS_FORMAT_CURRENCY);
	 $MyData->addPoints($index,"Labels");
	 $MyData->setSerieDescription("Labels",$xaxisname);
	 $MyData->setAbscissa("Labels");
	 $MyData->setPalette("DEFCA",array("R"=>55,"G"=>91,"B"=>127));

	 /* Create the pChart object */
	 $myPicture = new pImage(700,230,$MyData);
	 $myPicture->drawGradientArea(0,0,700,230,DIRECTION_VERTICAL,array("StartR"=>220,"StartG"=>220,"StartB"=>220,"EndR"=>255,"EndG"=>255,"EndB"=>255,"Alpha"=>100));
	 $myPicture->drawRectangle(0,0,699,229,array("R"=>200,"G"=>200,"B"=>200));
	 
	 /* Write the picture title */ 
	 $myPicture->setFontProperties(array("FontName"=>"../fonts/code.ttf","FontSize"=>11));
	 $myPicture->drawText(60,35,$title,array("FontSize"=>20,"Align"=>TEXT_ALIGN_BOTTOMLEFT));

	 /* Do some cosmetic and draw the chart */
	 $myPicture->setGraphArea(60,40,670,190);
	 $myPicture->drawFilledRectangle(60,40,670,190,array("R"=>255,"G"=>255,"B"=>255,"Surrounding"=>-200,"Alpha"=>10));
	 $myPicture->drawScale(array("GridR"=>180,"GridG"=>180,"GridB"=>180, "Mode" => SCALE_MODE_START0));
	 $myPicture->setShadow(TRUE,array("X"=>2,"Y"=>2,"R"=>0,"G"=>0,"B"=>0,"Alpha"=>10));
	 $myPicture->setFontProperties(array("FontName"=>"../fonts/code.ttf","FontSize"=>6));
	 $settings = array("Gradient"=>TRUE,"GradientMode"=>GRADIENT_EFFECT_CAN,"DisplayValues"=>$show_values,"DisplayZeroValues"=>FALSE,"DisplayR"=>100,"DisplayG"=>100,"DisplayB"=>100,"DisplayShadow"=>TRUE,"Surrounding"=>5,"AroundZero"=>FALSE);
	 $myPicture->drawSplineChart($settings);
	 $myPicture->setShadow(FALSE);

	 if($show_legend) {
		/* Write the chart legend */ 
		$myPicture->drawLegend(643,210,array("Style"=>LEGEND_NOBORDER,"Mode"=>LEGEND_HORIZONTAL)); 
	 }
	 
	 /* Render the picture */
	 $myPicture->stroke(); 
}

function pch_horizontal_graph ($graph_type, $index, $data, $width, $height, $xaxisname = "", $yaxisname = "", $show_values = false, $show_legend = false) {
	 /* CAT:Horizontal Charts */

	 /* Create and populate the pData object */
	 $MyData = new pData();  
	 $MyData->addPoints($data,"Xaxis");
	 $MyData->setAxisName(0,$yaxisname);
	 $MyData->addPoints($index,"Yaxis");
	 $MyData->setSerieDescription("Yaxis", $xaxisname);
	 $MyData->setAbscissa("Yaxis");

	 /* Create the pChart object */
	 $myPicture = new pImage($width,$height,$MyData);
	 $myPicture->drawGradientArea(0,0,$width,500,DIRECTION_VERTICAL,array("StartR"=>240,"StartG"=>240,"StartB"=>240,"EndR"=>180,"EndG"=>180,"EndB"=>180,"Alpha"=>100));
	 $myPicture->drawGradientArea(0,0,$width,500,DIRECTION_HORIZONTAL,array("StartR"=>240,"StartG"=>240,"StartB"=>240,"EndR"=>180,"EndG"=>180,"EndB"=>180,"Alpha"=>20));

	 /* Add a border to the picture */
	 //$myPicture->drawRectangle(0,0,$width,$height,array("R"=>0,"G"=>0,"B"=>0));

	 /* Set the default font */
	 $myPicture->setFontProperties(array("FontName"=>"../fonts/code.ttf","FontSize"=>7));

	 /* Define the chart area */
	 $myPicture->setGraphArea(75,20,$width,$height);

	 if(count($data) == 1) {
		 $xmargin = 110;
	 }
	 elseif(count($data) == 2) {
		$xmargin = 70;
	 }
	 else {
		$xmargin = 45;
	 }
	 /* Draw the scale */
	 $scaleSettings = array("GridR"=>200,"GridG"=>200,"GridB"=>200,"DrawSubTicks"=>TRUE,"CycleBackground"=>TRUE, "Mode"=>SCALE_MODE_START0, "XMargin" => $xmargin,"Pos"=>SCALE_POS_TOPBOTTOM);
	 $myPicture->drawScale($scaleSettings);

	 if($show_legend) {
		/* Write the chart legend */
		$myPicture->drawLegend(580,12,array("Style"=>LEGEND_NOBORDER,"Mode"=>LEGEND_HORIZONTAL));
	 }
	 
	 /* Turn on shadow computing */ 
	 $myPicture->setShadow(TRUE,array("X"=>0,"Y"=>1,"R"=>0,"G"=>0,"B"=>0,"Alpha"=>10));

	 /* Draw the chart */
	 $settings = array("Gradient"=>TRUE,"GradientMode"=>GRADIENT_EFFECT_CAN,"DisplayValues"=>$show_values,"DisplayZeroValues"=>FALSE,"DisplayR"=>100,"DisplayG"=>100,"DisplayB"=>100,"DisplayShadow"=>TRUE,"Surrounding"=>5,"AroundZero"=>FALSE);
	 $settings = array("DisplayPos"=>LABEL_POS_INSIDE,"DisplayValues"=>TRUE,"Rounded"=>TRUE,"Surrounding"=>30);
	 switch($graph_type) {
		case "hbar":
				$myPicture->drawBarChart($settings);
				break;
		case "area":
				$myPicture->drawAreaChart($settings);
				break;
		case "line":
				$myPicture->drawLineChart($settings);
				break;
	 }

	 /* Render the picture */
	 $myPicture->stroke(); 
}

/*
class PchartGraph extends PandoraGraphAbstract {
	public $palette_path = false;
	private $graph = NULL;
	private $dataset = NULL;
	private $x1;
	private $x2;
	private $y1;
	private $y2;
	
	public function load_palette ($palette_path) {
		$this->palette_path = $palette_path;
	}
	
	public function pie_graph () {
		// dataset definition
		$this->dataset = new pData;
		$this->dataset->AddPoint ($this->data, "Serie1", $this->legend);
		$this->dataset->AddPoint ($this->legend, "Serie2");
		$this->dataset->AddAllSeries ();
		$this->dataset->SetAbsciseLabelSerie ("Serie2");
		
		// Initialise the graph
		$this->graph = new pChart ($this->width, $this->height);
		$this->graph->setFontProperties ($this->fontpath, 8);
		if ($this->palette_path) {
			$this->graph->loadColorPalette ($this->palette_path);
		}
		$this->add_background ();
		
		// Draw the pie chart
		if ($this->three_dimensions) {
			$this->graph->drawPieGraph ($this->dataset->GetData (),
				$this->dataset->GetDataDescription (),
				$this->width / 2,
				$this->height / 2 - 15, $this->zoom,
				PIE_PERCENTAGE_LABEL, 5, 70, 20, 5);
		} else {
			$this->graph->drawFlatPieGraph ($this->dataset->GetData (),
				$this->dataset->GetDataDescription (),
				$this->width / 2,
				$this->height / 2, $this->zoom,
				PIE_PERCENTAGE_LABEL, 5);
		}
		
		if ($this->show_legend) {
			$this->graph->drawPieLegend (10, 10, $this->dataset->GetData (),
				$this->dataset->GetDataDescription (), 255, 255, 255);
		}
		
		$this->graph->Stroke ();
	}
	
	public function horizontal_bar_graph () {
		// dataset definition 
		$this->dataset = new pData;
		foreach ($this->data as $x => $y) {
			$this->dataset->AddPoint ($y, "Serie1", $x);
		}
		$this->dataset->AddAllSeries ();
		$this->dataset->SetXAxisFormat ("label");
		$this->dataset->SetYAxisFormat ($this->yaxis_format);

		// Initialise the graph
		$this->graph = new pChart ($this->width, $this->height);
		if ($this->palette_path) {
			$this->graph->loadColorPalette ($this->palette_path);
		}
		$this->graph->setFontProperties ($this->fontpath, 8);
		$this->add_background ();
		$this->graph->drawGraphArea (255, 255, 255, true);
		if ($this->show_grid)
			$this->graph->drawGrid (4, true, 230, 230, 230, 50);
		
		// Draw the bar graph
		$this->graph->setFontProperties ($this->fontpath, 8);
		$this->graph->setFixedScale (0, max ($this->data));
		$this->graph->drawOverlayBarGraphH ($this->dataset->GetData (),
			$this->dataset->GetDataDescription (), 50);
		
		// Finish the graph
		$this->add_legend ();
		
		$this->graph->Stroke ();
	}
	
	public function single_graph () {
		// Dataset definition
		$this->dataset = new pData;
		$this->graph = new pChart ($this->width, $this->height+2);
		
		foreach ($this->data as $x => $y) {
			$this->dataset->AddPoint ($y, "Serie1", $x);
		}
		$color = $this->get_rgb_values ($this->graph_color[2]);
		$this->graph->setColorPalette (0, $color['r'], $color['g'], $color['b']);
		$this->dataset->AddAllSeries ();
		if ($this->legend !== false)
			$this->dataset->SetSerieName ($this->legend[0], "Serie1");
		
		if ($this->palette_path)
			$this->graph->loadColorPalette ($this->palette_path);
		
		$this->graph->setFontProperties ($this->fontpath, 8);
		
		// White background 
		$this->graph->drawFilledRoundedRectangle(1,1,$this->width,$this->height,0,254,254,254);
		$this->add_background ();
		$this->dataset->SetXAxisFormat ($this->xaxis_format);
		$this->dataset->SetYAxisFormat ($this->yaxis_format);
		$this->graph->drawGraphArea (254, 254, 254, true);
		
		if ($this->max_value == 0 || $this->max_value == 1)
			$this->graph->setFixedScale (0, 1, 1);
		
		$this->graph->drawScale ($this->dataset->GetData (),
			$this->dataset->GetDataDescription (),
			SCALE_START0, 80, 80, 80, $this->show_axis,
			0, 0, false,
			$this->xaxis_interval);
		
		if ($this->show_grid)
			$this->graph->drawGrid (1, false, 200, 200, 200);
		if ($this->max_value > 0) {
			// Draw the graph
			$this->graph->drawFilledLineGraph ($this->dataset->GetData (),
				$this->dataset->GetDataDescription (),
				50, true);
		}
		
		// Finish the graph
//		$this->add_legend ();
		$this->add_events ();
		$this->add_alert_levels ();
		
		$this->graph->Stroke ();
	}
	
	public function sparse_graph ($period, $avg_only, $min_value, $max_value, $unit_name, $baseline = 0) {
		// Dataset definition
		$this->dataset = new pData;
		$this->graph = new pChart ($this->width, $this->height+5);
		$this->graph->setFontProperties ($this->fontpath, 8);
		$this->legend = array ();
		
		if ($avg_only) {
			foreach ($this->data as $data) {
				$this->dataset->AddPoint ($data['sum'], "AVG", $data['timestamp_bottom']);
			}
			$color = $this->get_rgb_values ($this->graph_color[2]);
			$this->graph->setColorPalette (0, $color['r'], $color['g'], $color['b']);
		} else {
			foreach ($this->data as $data) {
				$this->dataset->AddPoint ($data['sum'], "AVG", $data['timestamp_bottom']);
				$this->dataset->AddPoint ($data['min'], "MIN");
				$this->dataset->AddPoint ($data['max'], "MAX");
			}
			$this->legend[1] = __("Min");
			$this->legend[0] = __("Avg");
			$this->legend[2] = __("Max");
			$this->dataset->SetSerieName (__("Min"), "MIN");
			$this->dataset->SetSerieName (__("Avg"), "AVG");
			$this->dataset->SetSerieName (__("Max"), "MAX");
			$this->set_colors ();
		}
		
		// Draw baseline
		if ($baseline == 1) {
			foreach ($this->data as $data) {
				$this->dataset->AddPoint ($data['baseline'], "BLINE");
			}
		}

		$this->dataset->SetXAxisFormat ('datetime');
		$this->graph->setDateFormat ("Y");
		$this->dataset->SetYAxisFormat ('metric');
		$this->dataset->AddAllSeries ();

		$this->dataset->SetSerieName (__("Avg"), "AVG");
		$this->legend[0] = __("Avg");
		
		if ($this->palette_path) {
			$this->graph->loadColorPalette ($this->palette_path);
		}

		// White background 
		$this->graph->drawFilledRoundedRectangle(1,1,$this->width,$this->height+2,0,254,254,254);
		
		// Graph border
		// Now graph border is in the style image attribute
		//$this->graph->drawRoundedRectangle(1,1,$this->width-1,$this->height+4,5,230,230,230);

			
		$this->add_background ();
		// If graph is small remove blank spaces
		if ($this->width < MIN_WIDTH || $this->height < MIN_HEIGHT)
			$this->graph->setGraphArea (5,5,$this->width-5,$this->height-5);		
		$this->graph->drawGraphArea (254, 254, 254, false);

		$this->xaxis_interval = ($this->xaxis_interval / 7 >= 1) ? ($this->xaxis_interval / 7) : 10;
		
		// Remove axis values if graph is small 
		if ($this->width > MIN_WIDTH && $this->height > MIN_HEIGHT){
			$this->graph->drawScale ($this->dataset->GetData (),
					$this->dataset->GetDataDescription (), SCALE_START0,
					80, 80, 80, $this->show_axis, 0, 50, false,
					$this->xaxis_interval);
		}else{
			$this->graph->drawScale ($this->dataset->GetData (),
					$this->dataset->GetDataDescription (), SCALE_START0,
					80, 80, 80, false, 0, 50, false,
					$this->xaxis_interval);
		}
				
		/// NOTICE: The final "false" is a Pandora modificaton of pChart to avoid showing vertical lines. 
		if ($this->show_grid)
			$this->graph->drawGrid (1, true, 225, 225, 225, 100, false);
			
		// Draw the graph
		$this->graph->drawFilledLineGraph ($this->dataset->GetData(), $this->dataset->GetDataDescription(), 50, true);
	
		// Remove legends if graph is small 		
		if ($this->width > MIN_WIDTH && $this->height > MIN_HEIGHT)
			$this->add_legend ();
		$this->add_events ("AVG");
		$this->add_alert_levels ();
		
		$this->graph->Stroke ();
	}
	
	public function vertical_bar_graph () {
		// dataset definition 
		$this->dataset = new pData;
		foreach ($this->data as $x => $y) {
			$this->dataset->AddPoint ($y, "Serie1", $x);
		}
		$this->dataset->AddAllSeries ();
		$this->dataset->SetAbsciseLabelSerie ();
		$this->dataset->SetXAxisFormat ($this->xaxis_format);
		$this->dataset->SetYAxisFormat ($this->yaxis_format);
		
		// Initialise the graph
		$this->graph = new pChart ($this->width, $this->height);
		if ($this->palette_path) {
			$this->graph->loadColorPalette ($this->palette_path);
		}
		$this->graph->setFontProperties ($this->fontpath, 8);
		$this->add_background ();
		$this->graph->drawGraphArea (255, 255, 255, true);
		if ($this->show_grid)
			$this->graph->drawGrid (4, true, 230, 230, 230, 50);

		// Draw the bar graph
		$this->graph->setFontProperties ($this->fontpath, 8);
		$this->graph->drawScale ($this->dataset->GetData (),
					$this->dataset->GetDataDescription (),
					SCALE_START0, 80, 80, 80,
					$this->show_axis, 0, 0, false,
					$this->xaxis_interval);
		$this->graph->drawOverlayBarGraph ($this->dataset->GetData (),
						$this->dataset->GetDataDescription (),
						50);
		$this->add_events ("Serie1");
		$this->add_alert_levels ();
		
		// Finish the graph
		$this->graph->Stroke ();
	}
	
	public function combined_graph ($values, $events, $alerts, $unit_name, $max_value, $stacked) {
		set_time_limit (0);
		// Dataset definition
		$this->dataset = new pData;
		$this->graph = new pChart ($this->width, $this->height+5);
		
		$graph_items = 0;		
		// $previo stores values from last series to made the stacked graph
		foreach ($this->data as $i => $data) {
			$graph_items++;
			$max = 0;
			$min = 10000000000000;
			$avg = 0;
			$count = 0;
			foreach ($data as $j => $value) {
				$count ++;
				$avg += $value;
				if ($value > $max )
					$max = $value;
				if ($value < $min )
					$min = $value;

				// New code for stacked. Due pchart doesnt not support stacked
				// area graph, we "made it", adding to a series the values of the
				// previous one consecutive sum.
				if ((($stacked == 1) OR ($stacked==3)) AND ($i >0)){
					$this->dataset->AddPoint ($value+$previo[$j], $this->legend[$i],
					$values[$j]['timestamp_bottom']);
				} else {
					$this->dataset->AddPoint ($value, $this->legend[$i],
					$values[$j]['timestamp_bottom']);
				}				
				if ($i == 0)
					$previo[$j] = $value;
				else
					$previo[$j] = $previo[$j] + $value;
				
			}
			if ($count > 0)
				$avgdata[$i] = $avg / $count;
			else
				$avgdata[$i] = 0;
			$maxdata[$i] = format_for_graph($max);
			$mindata[$i] = format_for_graph($min);
			$avgdata[$i] = format_for_graph($avgdata[$i]);
		}

		$i = 0;
		foreach ($this->legend as $name) {
			$legend = $name . " (".__("Max"). ":$maxdata[$i], ".__("Min"). ":$mindata[$i], ". __("Avg"). ": $avgdata[$i])"; 
			$this->dataset->setSerieName ($legend, $name);
			$this->dataset->AddSerie ($name);
			$i++;
		}
		
		// Set different colors for combined graphs because need to be
		// very different.
		
		$this->graph_color[1] = "#FF0000"; // Red
		$this->graph_color[2] = "#00FF00"; // Green
		$this->graph_color[3] = "#0000FF"; // Blue

		// White background 
		$this->graph->drawFilledRoundedRectangle(1,1,$this->width,$this->height,0,254,254,254);  
			
		$this->set_colors ();
		$this->graph->setFontProperties ($this->fontpath, 8);
		$this->dataset->SetXAxisFormat ('datetime');
		$this->dataset->SetYAxisFormat ('metric');
		$this->dataset->AddAllSeries ();
		$this->add_background ();


		$legend_offset = $this->height - 21 - ($graph_items*15);

		$this->graph->setGraphArea (35,10,$this->width-10, $legend_offset);
		$this->graph->drawGraphArea (254, 254, 254, false);
		
				
		// Fixed missing X-labels (6Ago09)
		$this->xaxis_interval = ($this->xaxis_interval / 7 >= 1) ? ($this->xaxis_interval / 7) : 10;
		$this->graph->drawScale ($this->dataset->GetData (),
		$this->dataset->GetDataDescription (), SCALE_START0,
			80, 80, 80, $this->show_axis, 0, 50, false,
			$this->xaxis_interval);
		
		$this->graph->drawGrid (1, true, 225, 225, 225, 100, false);
		
		// Draw the graph
		if ($stacked == 1) { // Stacked solid
			$this->graph->drawScale ($this->dataset->GetData (),
				$this->dataset->GetDataDescription (),
				SCALE_START0, 80, 80, 80, $this->show_axis, 0, 0, false,
				$this->xaxis_interval);
			$this->graph->drawFilledCubicCurve ($this->dataset->GetData(),
				$this->dataset->GetDataDescription(), 1, 30, true);
		}
		elseif ($stacked == 3) { // Stacked wired
			$this->graph->drawScale ($this->dataset->GetData (),
				$this->dataset->GetDataDescription (),
				SCALE_START0, 80, 80, 80, $this->show_axis, 0, 0, false,
				$this->xaxis_interval);
			$this->graph->drawFilledCubicCurve ($this->dataset->GetData(),
				$this->dataset->GetDataDescription(), 1, 0, true);
				
		}
		else if ($stacked == 2) { // Wired mode
			$this->graph->drawScale ($this->dataset->GetData (),
				$this->dataset->GetDataDescription (),
				SCALE_START0, 80, 80, 80, $this->show_axis, 0, 0, false,
				$this->xaxis_interval);
			$this->graph->drawLineGraph ($this->dataset->GetData (),
				$this->dataset->GetDataDescription ());
		}
		else { // Non-stacked, area overlapped
			$this->graph->drawScale ($this->dataset->GetData (),
				$this->dataset->GetDataDescription (),
				SCALE_START0, 80, 80, 80, $this->show_axis, 0, 0, false,
				$this->xaxis_interval);
			$this->graph->drawFilledCubicCurve ($this->dataset->GetData(),
				$this->dataset->GetDataDescription(), 1, 30, true);
		}

		$this->graph->setFontProperties($this->fontpath,7);
		$this->graph->drawLegend(15,$legend_offset+29,$this->dataset->GetDataDescription(),92,92,92,50,50,50,45,45,45,0); 

// Legend line separator
// $this->graph->drawFilledRoundedRectangle(35, $legend_offset + 30 ,$this->width-35,$legend_offset+30,0,220,220,220); 

		$this->add_events ($this->legend[0]);
		$this->add_alert_levels ();
		
		$this->graph->Stroke ();
	}
	
	public function progress_bar ($value, $color) {
		set_time_limit (0);
		// Dataset definition
		$this->graph = new pChart ($this->width, $this->height);
		$this->graph->setFontProperties ($this->fontpath, 8);

		// Round corners defined in global setup

		global $config;
		if ($config["round_corner"] != 0)
			$radius = ($this->height > 18) ? 8 : 0;
		else
			$radius = 0;

		$ratio = (int) $value / 100 * $this->width;
		
		// Color stuff 
		$bgcolor = $this->get_rgb_values ($this->background_color);
		$r = hexdec (substr ($this->background_color, 1, 2));
		$g = hexdec (substr ($this->background_color, 3, 2));
		$b = hexdec (substr ($this->background_color, 5, 2));
		
		// Actual percentage 
		if (! $this->show_title || $value > 0) {
			$color = $this->get_rgb_values ($color);
			$this->graph->drawFilledRoundedRectangle (0, 0, $ratio, 
				$this->height, $radius, $color['r'], $color['g'], $color['b']);
		}
		
		if ($config["round_corner"]) {
			// Under this value, the rounded rectangle is painted great 
			if ($ratio <= 16) {
				// Clean a bit of pixels 
				for ($i = 0; $i < 7; $i++) {
					$this->graph->drawLine (0, $i, 6 - $i, $i, 255, 255, 255);
				}
				$end = $this->height - 1;
				for ($i = 0; $i < 7; $i++) {
					$this->graph->drawLine (0, $end - $i, 5 - $i, $end - $i, 255, 255, 255);
				}
			}
		}
		
		if ($ratio <= 60) {
			if ($this->show_title) {
				$this->graph->drawTextBox (0, 0, $this->width, $this->height,
					$this->title, 0, 0, 0, 0, ALIGN_CENTER, false);
			}
		} else {
			if ($this->show_title) {
				$this->graph->drawTextBox (0, 0, $this->width, $this->height,
					$this->title, 0, 255, 255, 255, ALIGN_CENTER, false);
			}
		}
				
		if ($this->border) {
			$this->graph->drawRoundedRectangle (0, 0, $this->width - 1,
				$this->height - 1,
				$radius, 157, 157, 157);
		}
		
		$this->graph->Stroke ();
	}
	
	// Gets an array with each the components of a RGB string 
	private static function get_rgb_values ($rgb_string) {
		$color = array ('r' => 0, 'g' => 0, 'b' => 0);
		$offset = 0;
		if ($rgb_string[0] == '#')
			$offset = 1;
		$color['r'] = hexdec (substr ($rgb_string, $offset, 2));
		$color['g'] = hexdec (substr ($rgb_string, $offset + 2, 2));
		$color['b'] = hexdec (substr ($rgb_string, $offset + 4, 2));
		return $color;
	}
	
	private function add_alert_levels () {
		if ($this->alert_top !== false) {
			$this->graph->drawTreshold ($this->alert_top, 57,
				96, 255, true, true, 4,
				"Alert top");
		}
		if ($this->alert_bottom !== false) {
			$this->graph->drawTreshold ($this->alert_bottom, 7,
				96, 255, true, true, 4,
				"Alert bottom");
		}
	}
	
	private function add_events ($serie = "Serie1") {
		if (! $this->events)
			return;
		
		// Unfortunatelly, the events must be draw manually 
		
		$first = $this->dataset->Data[0]["Name"];
		$len = count ($this->dataset->Data) - 1;
		
		$last = $this->dataset->Data[$len]["Name"];
		$ylen = $this->y2 - $this->y1;
		
		foreach ($this->data as $i => $data) {
			// Finally, check if there were events 
			if (! $data['events'])
				continue;
			
			if (!isset($this->dataset->Data[$i]))
				continue;
				
			$x1 = (int) ($this->x1 + $i * $this->graph->DivisionWidth);
			$y1 = (int) ($this->y2 - ($this->dataset->Data[$i][$serie] * $this->graph->DivisionRatio));
			$this->graph->drawFilledCircle ($x1, $y1, 1.5, 255, 0, 0);
			if ($y1 == $this->y2)
				// Lines in the same dot fails 
				continue;
			
			$this->graph->drawDottedLine ($x1 - 1, $y1,
				$x1 - 1, $this->y2,
				5, 255, 150, 150);
		}
	}
	
	private function add_background () {
		if ($this->graph == NULL)
			return;
		
		$this->graph->setDateFormat ($this->date_format);
		
		$this->x1 = ($this->width > 300) ? 30 : 35;
//		$this->y1 = ($this->height > 200) ? 25 : 10;
		$this->x2 = ($this->width > 300) ? $this->width - 15 : $this->width - 15;
		$this->y2 = ($this->height > 200) ? $this->height - 25 : $this->height - 25;
		
		if ($this->max_value > 10000 && $this->show_axis)
			$this->x1 += 20;

		$this->graph->drawGraphArea (255, 255, 255, true);
				
		$this->graph->setFontProperties ($this->fontpath, 7);
		$size = $this->graph->getLegendBoxSize ($this->dataset->GetDataDescription ());
		
		// Old resize code for graph area, discard, we need all area in pure mode
		//if (is_array ($size)) {
		//	while ($size[1] > $this->y1)
		//		$this->y1 += (int) $size[1] / 2;
		//	if ($this->y1 > $this->y2)
		//		$this->y1 = $this->y2;
		//}
		

		if ($this->show_title == 1){
			$this->y1=40;
		} else {
			$this->y1=10;
		}

		// No title for combined
		if ($this->stacked !== false){
			$this->y1=10;
		}
		
		
		$this->graph->setGraphArea ($this->x1, $this->y1, $this->x2, $this->y2);
		
		if ($this->show_title) {
			$this->graph->setFontProperties ($this->fontpath, 12);
			$this->graph->drawTextBox (2, 7, $this->width, 20, $this->title, 0, 0, 0, 0, ALIGN_LEFT, false);
			$this->graph->setFontProperties ($this->fontpath, 9);
			$this->graph->drawTextBox (0, 10, $this->width, 20, $this->subtitle,
				0, 0, 0, 0, ALIGN_CENTER, false);

			$this->graph->setFontProperties ($this->fontpath, 6);
		}
		
		// This is a tiny watermark 
		if ($this->watermark) {
			if ($this->show_title){
				$this->graph->setFontProperties ($this->fontpath, 7);
				$this->graph->drawTextBox ($this->width - 8, 40,
					$this->width - 240, 90, 'PANDORA FMS', 90,
					174, 214, 174, ALIGN_BOTTOM_LEFT, false);
			}
			else {
				$this->graph->setFontProperties ($this->fontpath, 7);
				$this->graph->drawTextBox ($this->width - 8, 50,
					$this->width - 240, 60, 'PANDORA FMS', 90,
					174, 214, 174, ALIGN_BOTTOM_LEFT, false);
		 	}
		}
	}
	
	private function add_legend () {
		if ((! $this->show_title || $this->legend === false) && ($this->stacked === false)) {
			return;
		}

		// Add legend 
		$this->graph->setFontProperties ($this->fontpath, 6);
		$size = $this->graph->getLegendBoxSize ($this->dataset->GetDataDescription ());
		
		// No title for combined, so legends goes up
		if ($this->stacked !== false)
			$this->graph->drawLegend ( 35, 12,
			$this->dataset->GetDataDescription (),
			245, 245, 245);
		else
			$this->graph->drawLegend ( 35, 52,
			$this->dataset->GetDataDescription (),
			245, 245, 245);
	}
	
	private function set_colors () {
		if ($this->graph == NULL)
			return;
		
		for ($a = 0; $a<9; $a++){
			$color = $this->get_rgb_values ($this->graph_color[$a+1]);
			$this->graph->setColorPalette ($a, $color['r'], $color['g'], $color['b']);
		}
	}
}
*/
?>