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| <?php |
| /*======================================================================= |
| // File: JPGRAPH_MGRAPH.PHP |
| // Description: Class to handle multiple graphs in the same image |
| // Created: 2006-01-15 |
| // Ver: $Id: jpgraph_mgraph.php 1770 2009-08-17 06:10:22Z ljp $ |
| // |
| // Copyright (c) Aditus Consulting. All rights reserved. |
| //======================================================================== |
| */ |
| |
| //============================================================================= |
| // CLASS MGraph |
| // Description: Create a container image that can hold several graph |
| //============================================================================= |
| class MGraph { |
| |
| public $title = null, $subtitle = null, $subsubtitle = null; |
| |
| protected $img=NULL; |
| protected $iCnt=0,$iGraphs = array(); // image_handle, x, y, fx, fy, sizex, sizey |
| protected $iFillColor='white', $iCurrentColor=0; |
| protected $lm=4,$rm=4,$tm=4,$bm=4; |
| protected $iDoFrame = FALSE, $iFrameColor = 'black', $iFrameWeight = 1; |
| protected $iLineWeight = 1; |
| protected $expired=false; |
| protected $cache=null,$cache_name = '',$inline=true; |
| protected $image_format='png',$image_quality=75; |
| protected $iWidth=NULL,$iHeight=NULL; |
| protected $background_image='',$background_image_center=true, |
| $backround_image_format='',$background_image_mix=100, |
| $background_image_y=NULL, $background_image_x=NULL; |
| private $doshadow=false, $shadow_width=4, $shadow_color='gray@0.5'; |
| public $footer; |
| |
| |
| // Create a new instane of the combined graph |
| function __construct($aWidth=NULL,$aHeight=NULL,$aCachedName='',$aTimeOut=0,$aInline=true) { |
| $this->iWidth = $aWidth; |
| $this->iHeight = $aHeight; |
| |
| // If the cached version exist just read it directly from the |
| // cache, stream it back to browser and exit |
| if( $aCachedName!='' && READ_CACHE && $aInline ) { |
| $this->cache = new ImgStreamCache(); |
| $this->cache->SetTimeOut($aTimeOut); |
| $image = new Image(); |
| if( $this->cache->GetAndStream($image,$aCachedName) ) { |
| exit(); |
| } |
| } |
| $this->inline = $aInline; |
| $this->cache_name = $aCachedName; |
| |
| $this->title = new Text(); |
| $this->title->ParagraphAlign('center'); |
| $this->title->SetFont(FF_FONT2,FS_BOLD); |
| $this->title->SetMargin(3); |
| $this->title->SetAlign('center'); |
| |
| $this->subtitle = new Text(); |
| $this->subtitle->ParagraphAlign('center'); |
| $this->subtitle->SetFont(FF_FONT1,FS_BOLD); |
| $this->subtitle->SetMargin(3); |
| $this->subtitle->SetAlign('center'); |
| |
| $this->subsubtitle = new Text(); |
| $this->subsubtitle->ParagraphAlign('center'); |
| $this->subsubtitle->SetFont(FF_FONT1,FS_NORMAL); |
| $this->subsubtitle->SetMargin(3); |
| $this->subsubtitle->SetAlign('center'); |
| |
| $this->footer = new Footer(); |
| |
| } |
| |
| // Specify background fill color for the combined graph |
| function SetFillColor($aColor) { |
| $this->iFillColor = $aColor; |
| } |
| |
| // Add a frame around the combined graph |
| function SetFrame($aFlg,$aColor='black',$aWeight=1) { |
| $this->iDoFrame = $aFlg; |
| $this->iFrameColor = $aColor; |
| $this->iFrameWeight = $aWeight; |
| } |
| |
| // Specify a background image blend |
| function SetBackgroundImageMix($aMix) { |
| $this->background_image_mix = $aMix ; |
| } |
| |
| // Specify a background image |
| function SetBackgroundImage($aFileName,$aCenter_aX=NULL,$aY=NULL) { |
| // Second argument can be either a boolean value or |
| // a numeric |
| $aCenter=TRUE; |
| $aX=NULL; |
| |
| if( is_numeric($aCenter_aX) ) { |
| $aX=$aCenter_aX; |
| } |
| |
| // Get extension to determine image type |
| $e = explode('.',$aFileName); |
| if( !$e ) { |
| JpGraphError::RaiseL(12002,$aFileName); |
| //('Incorrect file name for MGraph::SetBackgroundImage() : '.$aFileName.' Must have a valid image extension (jpg,gif,png) when using autodetection of image type'); |
| } |
| |
| $valid_formats = array('png', 'jpg', 'gif'); |
| $aImgFormat = strtolower($e[count($e)-1]); |
| if ($aImgFormat == 'jpeg') { |
| $aImgFormat = 'jpg'; |
| } |
| elseif (!in_array($aImgFormat, $valid_formats) ) { |
| JpGraphError::RaiseL(12003,$aImgFormat,$aFileName); |
| //('Unknown file extension ($aImgFormat) in MGraph::SetBackgroundImage() for filename: '.$aFileName); |
| } |
| |
| $this->background_image = $aFileName; |
| $this->background_image_center=$aCenter; |
| $this->background_image_format=$aImgFormat; |
| $this->background_image_x = $aX; |
| $this->background_image_y = $aY; |
| } |
| |
| function _strokeBackgroundImage() { |
| if( $this->background_image == '' ) return; |
| |
| $bkgimg = Graph::LoadBkgImage('',$this->background_image); |
| |
| // Background width & Heoght |
| $bw = imagesx($bkgimg); |
| $bh = imagesy($bkgimg); |
| |
| // Canvas width and height |
| $cw = imagesx($this->img); |
| $ch = imagesy($this->img); |
| |
| if( $this->doshadow ) { |
| $cw -= $this->shadow_width; |
| $ch -= $this->shadow_width; |
| } |
| |
| if( $this->background_image_x === NULL || $this->background_image_y === NULL ) { |
| if( $this->background_image_center ) { |
| // Center original image in the plot area |
| $x = round($cw/2-$bw/2); $y = round($ch/2-$bh/2); |
| } |
| else { |
| // Just copy the image from left corner, no resizing |
| $x=0; $y=0; |
| } |
| } |
| else { |
| $x = $this->background_image_x; |
| $y = $this->background_image_y; |
| } |
| imagecopymerge($this->img,$bkgimg,$x,$y,0,0,$bw,$bh,$this->background_image_mix); |
| } |
| |
| function AddMix($aGraph,$x=0,$y=0,$mix=100,$fx=0,$fy=0,$w=0,$h=0) { |
| $this->_gdImgHandle($aGraph->Stroke( _IMG_HANDLER),$x,$y,$fx=0,$fy=0,$w,$h,$mix); |
| } |
| |
| function Add($aGraph,$x=0,$y=0,$fx=0,$fy=0,$w=0,$h=0) { |
| $this->_gdImgHandle($aGraph->Stroke( _IMG_HANDLER),$x,$y,$fx=0,$fy=0,$w,$h); |
| } |
| |
| function _gdImgHandle($agdCanvas,$x,$y,$fx=0,$fy=0,$w=0,$h=0,$mix=100) { |
| if( $w == 0 ) { |
| $w = @imagesx($agdCanvas); |
| } |
| if( $w === NULL ) { |
| JpGraphError::RaiseL(12007); |
| //('Argument to MGraph::Add() is not a valid GD image handle.'); |
| return; |
| } |
| if( $h == 0 ) { |
| $h = @imagesy($agdCanvas); |
| } |
| $this->iGraphs[$this->iCnt++] = array($agdCanvas,$x,$y,$fx,$fy,$w,$h,$mix); |
| } |
| |
| function SetMargin($lm,$rm,$tm,$bm) { |
| $this->lm = $lm; |
| $this->rm = $rm; |
| $this->tm = $tm; |
| $this->bm = $bm; |
| } |
| |
| function SetExpired($aFlg=true) { |
| $this->expired = $aFlg; |
| } |
| |
| function SetImgFormat($aFormat,$aQuality=75) { |
| $this->image_format = $aFormat; |
| $this->image_quality = $aQuality; |
| } |
| |
| // Set the shadow around the whole image |
| function SetShadow($aShowShadow=true,$aShadowWidth=4,$aShadowColor='gray@0.3') { |
| $this->doshadow = $aShowShadow; |
| $this->shadow_color = $aShadowColor; |
| $this->shadow_width = $aShadowWidth; |
| $this->footer->iBottomMargin += $aShadowWidth; |
| $this->footer->iRightMargin += $aShadowWidth; |
| } |
| |
| function StrokeTitle($image,$w,$h) { |
| // Stroke title |
| if( $this->title->t !== '' ) { |
| |
| $margin = 3; |
| |
| $y = $this->title->margin; |
| if( $this->title->halign == 'center' ) { |
| $this->title->Center(0,$w,$y); |
| } |
| elseif( $this->title->halign == 'left' ) { |
| $this->title->SetPos($this->title->margin+2,$y); |
| } |
| elseif( $this->title->halign == 'right' ) { |
| $indent = 0; |
| if( $this->doshadow ) { |
| $indent = $this->shadow_width+2; |
| } |
| $this->title->SetPos($w-$this->title->margin-$indent,$y,'right'); |
| } |
| $this->title->Stroke($image); |
| |
| // ... and subtitle |
| $y += $this->title->GetTextHeight($image) + $margin + $this->subtitle->margin; |
| if( $this->subtitle->halign == 'center' ) { |
| $this->subtitle->Center(0,$w,$y); |
| } |
| elseif( $this->subtitle->halign == 'left' ) { |
| $this->subtitle->SetPos($this->subtitle->margin+2,$y); |
| } |
| elseif( $this->subtitle->halign == 'right' ) { |
| $indent = 0; |
| if( $this->doshadow ) { |
| $indent = $this->shadow_width+2; |
| } |
| $this->subtitle->SetPos($this->img->width-$this->subtitle->margin-$indent,$y,'right'); |
| } |
| $this->subtitle->Stroke($image); |
| |
| // ... and subsubtitle |
| $y += $this->subtitle->GetTextHeight($image) + $margin + $this->subsubtitle->margin; |
| if( $this->subsubtitle->halign == 'center' ) { |
| $this->subsubtitle->Center(0,$w,$y); |
| } |
| elseif( $this->subsubtitle->halign == 'left' ) { |
| $this->subsubtitle->SetPos($this->subsubtitle->margin+2,$y); |
| } |
| elseif( $this->subsubtitle->halign == 'right' ) { |
| $indent = 0; |
| if( $this->doshadow ) { |
| $indent = $this->shadow_width+2; |
| } |
| $this->subsubtitle->SetPos($w-$this->subsubtitle->margin-$indent,$y,'right'); |
| } |
| $this->subsubtitle->Stroke($image); |
| |
| } |
| } |
| |
| function Stroke($aFileName='') { |
| // Find out the necessary size for the container image |
| $w=0; $h=0; |
| for($i=0; $i < $this->iCnt; ++$i ) { |
| $maxw = $this->iGraphs[$i][1]+$this->iGraphs[$i][5]; |
| $maxh = $this->iGraphs[$i][2]+$this->iGraphs[$i][6]; |
| $w = max( $w, $maxw ); |
| $h = max( $h, $maxh ); |
| } |
| $w += $this->lm+$this->rm; |
| $h += $this->tm+$this->bm; |
| |
| // User specified width,height overrides |
| if( $this->iWidth !== NULL && $this->iWidth !== 0 ) $w = $this->iWidth; |
| if( $this->iHeight!== NULL && $this->iHeight !== 0) $h = $this->iHeight; |
| |
| if( $this->doshadow ) { |
| $w += $this->shadow_width; |
| $h += $this->shadow_width; |
| } |
| |
| $image = new Image($w,$h); |
| $image->SetImgFormat( $this->image_format,$this->image_quality); |
| |
| if( $this->doshadow ) { |
| $image->SetColor($this->iFrameColor); |
| $image->ShadowRectangle(0,0,$w-1,$h-1,$this->iFillColor,$this->shadow_width,$this->shadow_color); |
| $w -= $this->shadow_width; |
| $h -= $this->shadow_width; |
| } |
| else { |
| $image->SetColor($this->iFillColor); |
| $image->FilledRectangle(0,0,$w-1,$h-1); |
| } |
| $image->SetExpired($this->expired); |
| |
| $this->img = $image->img; |
| $this->_strokeBackgroundImage(); |
| |
| if( $this->iDoFrame && ! $this->doshadow ) { |
| $image->SetColor($this->iFrameColor); |
| $image->SetLineWeight($this->iFrameWeight); |
| $image->Rectangle(0,0,$w-1,$h-1); |
| } |
| |
| // Copy all sub graphs to the container |
| for($i=0; $i < $this->iCnt; ++$i ) { |
| $image->CopyMerge($this->iGraphs[$i][0], |
| $this->iGraphs[$i][1]+$this->lm,$this->iGraphs[$i][2]+$this->tm, |
| $this->iGraphs[$i][3],$this->iGraphs[$i][4], |
| $this->iGraphs[$i][5],$this->iGraphs[$i][6], |
| -1,-1, /* Full from width and height */ |
| $this->iGraphs[$i][7]); |
| |
| |
| } |
| |
| $this->StrokeTitle($image,$w,$h); |
| $this->footer->Stroke($image); |
| |
| // Output image |
| if( $aFileName == _IMG_HANDLER ) { |
| return $image->img; |
| } |
| else { |
| //Finally stream the generated picture |
| $this->cache = new ImgStreamCache(); |
| $this->cache->PutAndStream($image,$this->cache_name,$this->inline,$aFileName); |
| } |
| } |
| } |
| |
| // EOF |
| |
| ?> |