jpgraph.php

一个基于web的开源项目管理工具

	$this->footer->iBottomMargin += $aShadowWidth;
	$this->footer->iRightMargin += $aShadowWidth;
    }

    // Specify x,y scale. Note that if you manually specify the scale
    // you must also specify the tick distance with a call to Ticks::Set()
    function SetScale($aAxisType,$aYMin=1,$aYMax=1,$aXMin=1,$aXMax=1) {
	$this->axtype = $aAxisType;

	if( $aYMax < $aYMin || $aXMax < $aXMin )
	    JpGraphError::RaiseL(25020);//('Graph::SetScale(): Specified Max value must be larger than the specified Min value.');

	$yt=substr($aAxisType,-3,3);
	if( $yt=="lin" )
	    $this->yscale = new LinearScale($aYMin,$aYMax);
	elseif( $yt == "int" ) {
	    $this->yscale = new LinearScale($aYMin,$aYMax);
	    $this->yscale->SetIntScale();
	}
	elseif( $yt=="log" )
	    $this->yscale = new LogScale($aYMin,$aYMax);
	else
	    JpGraphError::RaiseL(25021,$aAxisType);//("Unknown scale specification for Y-scale. ($aAxisType)");
			
	$xt=substr($aAxisType,0,3);
	if( $xt == "lin" || $xt == "tex" ) {
	    $this->xscale = new LinearScale($aXMin,$aXMax,"x");
	    $this->xscale->textscale = ($xt == "tex");
	}
	elseif( $xt == "int" ) {
	    $this->xscale = new LinearScale($aXMin,$aXMax,"x");
	    $this->xscale->SetIntScale();
	}
	elseif( $xt == "dat" ) {
	    $this->xscale = new DateScale($aXMin,$aXMax,"x");
	}
	elseif( $xt == "log" )
	    $this->xscale = new LogScale($aXMin,$aXMax,"x");
	else
	    JpGraphError::RaiseL(25022,$aAxisType);//(" Unknown scale specification for X-scale. ($aAxisType)");

	$this->xaxis = new Axis($this->img,$this->xscale);
	$this->yaxis = new Axis($this->img,$this->yscale);
	$this->xgrid = new Grid($this->xaxis);
	$this->ygrid = new Grid($this->yaxis);	
	$this->ygrid->Show();			
    }
	
    // Specify secondary Y scale
    function SetY2Scale($aAxisType="lin",$aY2Min=1,$aY2Max=1) {
	if( $aAxisType=="lin" ) 
	    $this->y2scale = new LinearScale($aY2Min,$aY2Max);
	elseif( $aAxisType == "int" ) {
	    $this->y2scale = new LinearScale($aY2Min,$aY2Max);
	    $this->y2scale->SetIntScale();
	}
	elseif( $aAxisType=="log" ) {
	    $this->y2scale = new LogScale($aY2Min,$aY2Max);
	}
	else JpGraphError::RaiseL(25023,$aAxisType);//("JpGraph: Unsupported Y2 axis type: $aAxisType\nMust be one of (lin,log,int)");
			
	$this->y2axis = new Axis($this->img,$this->y2scale);
	$this->y2axis->scale->ticks->SetDirection(SIDE_LEFT); 
	$this->y2axis->SetLabelSide(SIDE_RIGHT); 
	$this->y2axis->SetPos('max');
	$this->y2axis->SetTitleSide(SIDE_RIGHT);
		
	// Deafult position is the max x-value
	$this->y2grid = new Grid($this->y2axis);							
    }

    // Set the delta position (in pixels) between the multiple Y-axis
    function SetYDeltaDist($aDist) {
	$this->iYAxisDeltaPos = $aDist;
    }
	
    // Specify secondary Y scale
    function SetYScale($aN,$aAxisType="lin",$aYMin=1,$aYMax=1) {

	if( $aAxisType=="lin" ) 
	    $this->ynscale[$aN] = new LinearScale($aYMin,$aYMax);
	elseif( $aAxisType == "int" ) {
	    $this->ynscale[$aN] = new LinearScale($aYMin,$aYMax);
	    $this->ynscale[$aN]->SetIntScale();
	}
	elseif( $aAxisType=="log" ) {
	    $this->ynscale[$aN] = new LogScale($aYMin,$aYMax);
	}
	else JpGraphError::RaiseL(25024,$aAxisType);//("JpGraph: Unsupported Y axis type: $aAxisType\nMust be one of (lin,log,int)");
			
	$this->ynaxis[$aN] = new Axis($this->img,$this->ynscale[$aN]);
	$this->ynaxis[$aN]->scale->ticks->SetDirection(SIDE_LEFT); 
	$this->ynaxis[$aN]->SetLabelSide(SIDE_RIGHT); 
    }

	
    // Specify density of ticks when autoscaling 'normal', 'dense', 'sparse', 'verysparse'
    // The dividing factor have been determined heuristically according to my aesthetic 
    // sense (or lack off) y.m.m.v !
    function SetTickDensity($aYDensity=TICKD_NORMAL,$aXDensity=TICKD_NORMAL) {
	$this->xtick_factor=30;
	$this->ytick_factor=25;		
	switch( $aYDensity ) {
	    case TICKD_DENSE:
		$this->ytick_factor=12;			
		break;
	    case TICKD_NORMAL:
		$this->ytick_factor=25;			
		break;
	    case TICKD_SPARSE:
		$this->ytick_factor=40;			
		break;
	    case TICKD_VERYSPARSE:
		$this->ytick_factor=100;			
		break;		
	    default:
		JpGraphError::RaiseL(25025,$densy);//("JpGraph: Unsupported Tick density: $densy");
	}
	switch( $aXDensity ) {
	    case TICKD_DENSE:
		$this->xtick_factor=15;							
		break;
	    case TICKD_NORMAL:
		$this->xtick_factor=30;			
		break;
	    case TICKD_SPARSE:
		$this->xtick_factor=45;					
		break;
	    case TICKD_VERYSPARSE:
		$this->xtick_factor=60;								
		break;		
	    default:
		JpGraphError::RaiseL(25025,$densx);//("JpGraph: Unsupported Tick density: $densx");
	}		
    }
	

    // Get a string of all image map areas	
    function GetCSIMareas() {
	if( !$this->iHasStroked )
	    $this->Stroke(_CSIM_SPECIALFILE);

	$csim = $this->title->GetCSIMAreas();
	$csim .= $this->subtitle->GetCSIMAreas();
	$csim .= $this->subsubtitle->GetCSIMAreas();
	$csim .= $this->legend->GetCSIMAreas();

	if( $this->y2axis != NULL ) {
	    $csim .= $this->y2axis->title->GetCSIMAreas();
	}

	if( $this->texts != null ) {
	    $n = count($this->texts);
	    for($i=0; $i < $n; ++$i ) {
		$csim .= $this->texts[$i]->GetCSIMAreas();
	    }
	}

	if( $this->y2texts != null && $this->y2scale != null ) {
	    $n = count($this->y2texts);
	    for($i=0; $i < $n; ++$i ) {
		$csim .= $this->y2texts[$i]->GetCSIMAreas();
	    }
	}

	if( $this->yaxis != null && $this->xaxis != null ) {
	    $csim .= $this->yaxis->title->GetCSIMAreas();	
	    $csim .= $this->xaxis->title->GetCSIMAreas();
	}

	$n = count($this->plots);
	for( $i=0; $i < $n; ++$i ) 
	    $csim .= $this->plots[$i]->GetCSIMareas();

	$n = count($this->y2plots);
	for( $i=0; $i < $n; ++$i ) 
	    $csim .= $this->y2plots[$i]->GetCSIMareas();

	$n = count($this->ynaxis);
	for( $i=0; $i < $n; ++$i ) {
	    $m = count($this->ynplots[$i]); 
	    for($j=0; $j < $m; ++$j ) {
		$csim .= $this->ynplots[$i][$j]->GetCSIMareas();
	    }
	}

	$n = count($this->iTables);
	for( $i=0; $i < $n; ++$i ) {
	    $csim .= $this->iTables[$i]->GetCSIMareas();
	}

	return $csim;
    }
	
    // Get a complete <MAP>..</MAP> tag for the final image map
    function GetHTMLImageMap($aMapName) {
	//$im = "<map name=\"$aMapName\" id=\"$aMapName\">\n";
	$im = "<map name=\"$aMapName\" />\n";
	$im .= $this->GetCSIMareas();
	$im .= "</map>"; 
	return $im;
    }

    function CheckCSIMCache($aCacheName,$aTimeOut=60) {
	global $_SERVER;

	if( $aCacheName=='auto' )
	    $aCacheName=basename($_SERVER['PHP_SELF']);

	$this->csimcachename = CSIMCACHE_DIR.$aCacheName;
	$this->csimcachetimeout = $aTimeOut;

	// First determine if we need to check for a cached version
	// This differs from the standard cache in the sense that the
	// image and CSIM map HTML file is written relative to the directory
	// the script executes in and not the specified cache directory.
	// The reason for this is that the cache directory is not necessarily
	// accessible from the HTTP server.
	if( $this->csimcachename != '' ) {
	    $dir = dirname($this->csimcachename);
	    $base = basename($this->csimcachename);
	    $base = strtok($base,'.');
	    $suffix = strtok('.');
	    $basecsim = $dir.'/'.$base.'_csim_.html';
	    $baseimg = $dir.'/'.$base.'.'.$this->img->img_format;

	    $timedout=false;
		
	    // Does it exist at all ?
	    
	    if( file_exists($basecsim) && file_exists($baseimg) ) {
		// Check that it hasn't timed out
		$diff=time()-filemtime($basecsim);
		if( $this->csimcachetimeout>0 && ($diff > $this->csimcachetimeout*60) ) {
		    $timedout=true;
		    @unlink($basecsim);
		    @unlink($baseimg);
		}
		else {
		    if ($fh = @fopen($basecsim, "r")) {
			fpassthru($fh);
			return true;
		    }
		    else
			JpGraphError::RaiseL(25027,$basecsim);//(" Can't open cached CSIM \"$basecsim\" for reading.");
		}
	    }
	}
	return false;
    }

    function StrokeCSIM($aScriptName='auto',$aCSIMName='',$aBorder=0) {
	if( $aCSIMName=='' ) {
	    // create a random map name
	    srand ((double) microtime() * 1000000);
	    $r = rand(0,100000);
	    $aCSIMName='__mapname'.$r.'__';
	}

	if( $aScriptName=='auto' )
	    $aScriptName=basename($_SERVER['PHP_SELF']);

	if( empty($_GET[_CSIM_DISPLAY]) ) {
	    // First determine if we need to check for a cached version
	    // This differs from the standard cache in the sense that the
	    // image and CSIM map HTML file is written relative to the directory
	    // the script executes in and not the specified cache directory.
	    // The reason for this is that the cache directory is not necessarily
	    // accessible from the HTTP server.
	    if( $this->csimcachename != '' ) {
		$dir = dirname($this->csimcachename);
		$base = basename($this->csimcachename);
		$base = strtok($base,'.');
		$suffix = strtok('.');
		$basecsim = $dir.'/'.$base.'_csim_.html';
		$baseimg = $base.'.'.$this->img->img_format;

		// Check that apache can write to directory specified

		if( file_exists($dir) && !is_writeable($dir) ) {
		    JpgraphError::RaiseL(25028,$dir);//('Apache/PHP does not have permission to write to the CSIM cache directory ('.$dir.'). Check permissions.');
		}
		
		// Make sure directory exists
		$this->cache->MakeDirs($dir);

		// Write the image file
		$this->Stroke(CSIMCACHE_DIR.$baseimg);

		// Construct wrapper HTML and write to file and send it back to browser
		$htmlwrap = $this->GetHTMLImageMap($aCSIMName)."\n".
		    '<img src="'.htmlentities(CSIMCACHE_HTTP_DIR.$baseimg).'" ismap usemap="#'.$aCSIMName.'" border='.$aBorder.' width='.$this->img->width.' height='.$this->img->height." alt=\"\" />\n";
		if($fh =  @fopen($basecsim,'w') ) {
		    fwrite($fh,$htmlwrap);
		    fclose($fh);
		    echo $htmlwrap;
		}
		else
		    JpGraphError::RaiseL(25029,$basecsim);//(" Can't write CSIM \"$basecsim\" for writing. Check free space and permissions.");
	    }
	    else {

		if( $aScriptName=='' ) {
		    JpGraphError::RaiseL(25030);//('Missing script name in call to StrokeCSIM(). You must specify the name of the actual image script as the first parameter to StrokeCSIM().');
		    exit();
		}

		
		// This is a JPGRAPH internal defined that prevents
		// us from recursively coming here again
		$urlarg='?'._CSIM_DISPLAY.'=1';

		// Now reconstruct any user URL argument
		reset($_GET);
		while( list($key,$value) = each($_GET) ) {
		    if( is_array($value) ) {
			$n = count($value);
			for( $i=0; $i < $n; ++$i ) {
			    $urlarg .= '&'.$key.'%5B%5D='.urlencode($value[$i]);
			}
		    }
		    else {
			$urlarg .= '&'.$key.'='.urlencode($value);
		    }
		}

		// It's not ideal to convert POST argument to GET arguments
		// but there is little else we can do. One idea for the 
		// future might be recreate the POST header in case.
		reset($_POST);
		while( list($key,$value) = each($_POST) ) {
		    if( is_array($value) ) {
			$n = count($value);
			for( $i=0; $i < $n; ++$i ) {
			    $urlarg .= '&'.$key.'%5B%5D='.urlencode($value[$i]);
			}
		    }
		    else {
			$urlarg .= '&'.$key.'='.urlencode($value);
		    }
		}

		echo $this->GetHTMLImageMap($aCSIMName);

		echo "<img src='".htmlentities($aScriptName.$urlarg)."' ismap usemap='#".$aCSIMName.'\' border='.$aBorder.'  width='.$this->img->width.' height='.$this->img->height." alt=\"\" />\n";
	    }
	}
	else {
	    $this->Stroke();
	}
    }

    function GetTextsYMinMax($aY2=false) {
	if( $aY2 ) 
	    $txts = $this->y2texts;
	else
	    $txts = $this->texts;
	$n = count($txts);
	$min=null;
	$max=null;
	for( $i=0; $i < $n; ++$i ) {
	    if( $txts[$i]->iScalePosY !== null && 
		$txts[$i]->iScalePosX !== null  ) {
		if( $min === null  ) {
		    $min = $max = $txts[$i]->iScalePosY ;
		}
		else {
		    $min = min($min,$txts[$i]->iScalePosY);
		    $max = max($max,$txts[$i]->iScalePosY);
		}
	    }
	}
	if( $min !== null ) {
	    return array($min,$max);
	}
	else
	    return null;
    }

    function GetTextsXMinMax($aY2=false) {
	if( $aY2 ) 
	    $txts = $this->y2texts;
	else
	    $txts = $this->texts;
	$n = count($txts);
	$min=null;
	$max=null;
	for( $i=0; $i < $n; ++$i ) {
	    if( $txts[$i]->iScalePosY !== null && 
		$txts[$i]->iScalePosX !== null  ) {
		if( $min === null  ) {
		    $min = $max = $txts[$i]->iScalePosX ;
		}
		else {
		    $min = min($min,$txts[$i]->iScalePosX);
		    $max = max($max,$txts[$i]->iScalePosX);
		}
	    }
	}
	if( $min !== null ) {
	    return array($min,$max);
	}
	else
	    return null;
    }

    function GetXMinMax() {
	list($min,$ymin) = $this->plots[0]->Min();
	list($max,$ymax) = $this->plots[0]->Max();
	foreach( $this->plots as $p ) {
	    list($xmin,$ymin) = $p->Min();
	    list($xmax,$ymax) = $p->Max();			
	    $min = Min($xmin,$min);
	    $max = Max($xmax,$max);
	}
	if( $this->y2axis != null ) {
	    foreach( $this->y2plots as $p ) {
		list($xmin,$ymin) = $p->Min();
		list($xmax,$ymax) = $p->Max();			
		$min = Min($xmin,$min);
		$max = Max($xmax,$max);
	    }		    
	}

	$n = count($this->ynaxis);
	for( $i=0; $i < $n; ++$i ) {