| 1 | <?php
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| 2 | /*=======================================================================
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| 3 | // File: JPGRAPH_MGRAPH.PHP
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| 4 | // Description: Class to handle multiple graphs in the same image
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| 5 | // Created: 2006-01-15
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| 6 | // Ver: $Id: jpgraph_mgraph.php 1770 2009-08-17 06:10:22Z ljp $
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| 7 | //
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| 8 | // Copyright (c) Asial Corporation. All rights reserved.
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| 9 | //========================================================================
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| 10 | */
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| 11 |
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| 12 | //=============================================================================
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| 13 | // CLASS MGraph
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| 14 | // Description: Create a container image that can hold several graph
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| 15 | //=============================================================================
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| 16 | class MGraph {
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| 17 |
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| 18 | public $title = null, $subtitle = null, $subsubtitle = null;
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| 19 |
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| 20 | protected $img=NULL;
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| 21 | protected $iCnt=0,$iGraphs = array(); // image_handle, x, y, fx, fy, sizex, sizey
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| 22 | protected $iFillColor='white', $iCurrentColor=0;
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| 23 | protected $lm=4,$rm=4,$tm=4,$bm=4;
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| 24 | protected $iDoFrame = FALSE, $iFrameColor = 'black', $iFrameWeight = 1;
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| 25 | protected $iLineWeight = 1;
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| 26 | protected $expired=false;
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| 27 | protected $cache=null,$cache_name = '',$inline=true;
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| 28 | protected $image_format='png',$image_quality=75;
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| 29 | protected $iWidth=NULL,$iHeight=NULL;
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| 30 | protected $background_image='',$background_image_center=true,
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| 31 | $backround_image_format='',$background_image_mix=100,
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| 32 | $background_image_y=NULL, $background_image_x=NULL;
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| 33 | private $doshadow=false, $shadow_width=4, $shadow_color='gray@0.5';
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| 34 | public $footer;
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| 35 |
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| 36 |
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| 37 | // Create a new instane of the combined graph
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| 38 | function __construct($aWidth=NULL,$aHeight=NULL,$aCachedName='',$aTimeOut=0,$aInline=true) {
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| 39 | $this->iWidth = $aWidth;
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| 40 | $this->iHeight = $aHeight;
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| 41 |
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| 42 | // If the cached version exist just read it directly from the
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| 43 | // cache, stream it back to browser and exit
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| 44 | if( $aCachedName!='' && READ_CACHE && $aInline ) {
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| 45 | $this->cache = new ImgStreamCache();
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| 46 | $this->cache->SetTimeOut($aTimeOut);
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| 47 | $image = new Image();
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| 48 | if( $this->cache->GetAndStream($image,$aCachedName) ) {
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| 49 | exit();
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| 50 | }
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| 51 | }
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| 52 | $this->inline = $aInline;
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| 53 | $this->cache_name = $aCachedName;
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| 54 |
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| 55 | $this->title = new Text();
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| 56 | $this->title->ParagraphAlign('center');
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| 57 | $this->title->SetFont(FF_FONT2,FS_BOLD);
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| 58 | $this->title->SetMargin(3);
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| 59 | $this->title->SetAlign('center');
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| 60 |
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| 61 | $this->subtitle = new Text();
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| 62 | $this->subtitle->ParagraphAlign('center');
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| 63 | $this->subtitle->SetFont(FF_FONT1,FS_BOLD);
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| 64 | $this->subtitle->SetMargin(3);
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| 65 | $this->subtitle->SetAlign('center');
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| 66 |
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| 67 | $this->subsubtitle = new Text();
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| 68 | $this->subsubtitle->ParagraphAlign('center');
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| 69 | $this->subsubtitle->SetFont(FF_FONT1,FS_NORMAL);
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| 70 | $this->subsubtitle->SetMargin(3);
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| 71 | $this->subsubtitle->SetAlign('center');
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| 72 |
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| 73 | $this->footer = new Footer();
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| 74 |
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| 75 | }
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| 76 |
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| 77 | // Specify background fill color for the combined graph
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| 78 | function SetFillColor($aColor) {
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| 79 | $this->iFillColor = $aColor;
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| 80 | }
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| 81 |
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| 82 | // Add a frame around the combined graph
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| 83 | function SetFrame($aFlg,$aColor='black',$aWeight=1) {
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| 84 | $this->iDoFrame = $aFlg;
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| 85 | $this->iFrameColor = $aColor;
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| 86 | $this->iFrameWeight = $aWeight;
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| 87 | }
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| 88 |
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| 89 | // Specify a background image blend
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| 90 | function SetBackgroundImageMix($aMix) {
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| 91 | $this->background_image_mix = $aMix ;
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| 92 | }
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| 93 |
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| 94 | // Specify a background image
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| 95 | function SetBackgroundImage($aFileName,$aCenter_aX=NULL,$aY=NULL) {
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| 96 | // Second argument can be either a boolean value or
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| 97 | // a numeric
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| 98 | $aCenter=TRUE;
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| 99 | $aX=NULL;
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| 100 |
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| 101 | if( is_numeric($aCenter_aX) ) {
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| 102 | $aX=$aCenter_aX;
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| 103 | }
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| 104 |
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| 105 | // Get extension to determine image type
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| 106 | $e = explode('.',$aFileName);
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| 107 | if( !$e ) {
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| 108 | JpGraphError::RaiseL(12002,$aFileName);
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| 109 | //('Incorrect file name for MGraph::SetBackgroundImage() : '.$aFileName.' Must have a valid image extension (jpg,gif,png) when using autodetection of image type');
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| 110 | }
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| 111 |
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| 112 | $valid_formats = array('png', 'jpg', 'gif');
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| 113 | $aImgFormat = strtolower($e[count($e)-1]);
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| 114 | if ($aImgFormat == 'jpeg') {
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| 115 | $aImgFormat = 'jpg';
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| 116 | }
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| 117 | elseif (!in_array($aImgFormat, $valid_formats) ) {
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| 118 | JpGraphError::RaiseL(12003,$aImgFormat,$aFileName);
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| 119 | //('Unknown file extension ($aImgFormat) in MGraph::SetBackgroundImage() for filename: '.$aFileName);
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| 120 | }
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| 121 |
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| 122 | $this->background_image = $aFileName;
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| 123 | $this->background_image_center=$aCenter;
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| 124 | $this->background_image_format=$aImgFormat;
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| 125 | $this->background_image_x = $aX;
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| 126 | $this->background_image_y = $aY;
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| 127 | }
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| 128 |
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| 129 | function _strokeBackgroundImage() {
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| 130 | if( $this->background_image == '' ) return;
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| 131 |
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| 132 | $bkgimg = Graph::LoadBkgImage('',$this->background_image);
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| 133 |
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| 134 | // Background width & Heoght
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| 135 | $bw = imagesx($bkgimg);
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| 136 | $bh = imagesy($bkgimg);
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| 137 |
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| 138 | // Canvas width and height
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| 139 | $cw = imagesx($this->img);
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| 140 | $ch = imagesy($this->img);
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| 141 |
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| 142 | if( $this->doshadow ) {
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| 143 | $cw -= $this->shadow_width;
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| 144 | $ch -= $this->shadow_width;
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| 145 | }
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| 146 |
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| 147 | if( $this->background_image_x === NULL || $this->background_image_y === NULL ) {
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| 148 | if( $this->background_image_center ) {
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| 149 | // Center original image in the plot area
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| 150 | $x = round($cw/2-$bw/2); $y = round($ch/2-$bh/2);
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| 151 | }
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| 152 | else {
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| 153 | // Just copy the image from left corner, no resizing
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| 154 | $x=0; $y=0;
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| 155 | }
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| 156 | }
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| 157 | else {
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| 158 | $x = $this->background_image_x;
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| 159 | $y = $this->background_image_y;
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| 160 | }
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| 161 | imagecopymerge($this->img,$bkgimg,$x,$y,0,0,$bw,$bh,$this->background_image_mix);
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| 162 | }
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| 163 |
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| 164 | function AddMix($aGraph,$x=0,$y=0,$mix=100,$fx=0,$fy=0,$w=0,$h=0) {
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| 165 | $this->_gdImgHandle($aGraph->Stroke( _IMG_HANDLER),$x,$y,$fx=0,$fy=0,$w,$h,$mix);
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| 166 | }
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| 167 |
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| 168 | function Add($aGraph,$x=0,$y=0,$fx=0,$fy=0,$w=0,$h=0) {
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| 169 | $this->_gdImgHandle($aGraph->Stroke( _IMG_HANDLER),$x,$y,$fx=0,$fy=0,$w,$h);
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| 170 | }
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| 171 |
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| 172 | function _gdImgHandle($agdCanvas,$x,$y,$fx=0,$fy=0,$w=0,$h=0,$mix=100) {
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| 173 | if( $w == 0 ) {
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| 174 | $w = @imagesx($agdCanvas);
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| 175 | }
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| 176 | if( $w === NULL ) {
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| 177 | JpGraphError::RaiseL(12007);
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| 178 | //('Argument to MGraph::Add() is not a valid GD image handle.');
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| 179 | return;
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| 180 | }
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| 181 | if( $h == 0 ) {
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| 182 | $h = @imagesy($agdCanvas);
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| 183 | }
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| 184 | $this->iGraphs[$this->iCnt++] = array($agdCanvas,$x,$y,$fx,$fy,$w,$h,$mix);
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| 185 | }
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| 186 |
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| 187 | function SetMargin($lm,$rm,$tm,$bm) {
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| 188 | $this->lm = $lm;
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| 189 | $this->rm = $rm;
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| 190 | $this->tm = $tm;
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| 191 | $this->bm = $bm;
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| 192 | }
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| 193 |
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| 194 | function SetExpired($aFlg=true) {
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| 195 | $this->expired = $aFlg;
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| 196 | }
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| 197 |
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| 198 | function SetImgFormat($aFormat,$aQuality=75) {
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| 199 | $this->image_format = $aFormat;
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| 200 | $this->image_quality = $aQuality;
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| 201 | }
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| 202 |
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| 203 | // Set the shadow around the whole image
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| 204 | function SetShadow($aShowShadow=true,$aShadowWidth=4,$aShadowColor='gray@0.3') {
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| 205 | $this->doshadow = $aShowShadow;
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| 206 | $this->shadow_color = $aShadowColor;
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| 207 | $this->shadow_width = $aShadowWidth;
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| 208 | $this->footer->iBottomMargin += $aShadowWidth;
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| 209 | $this->footer->iRightMargin += $aShadowWidth;
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| 210 | }
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| 211 |
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| 212 | function StrokeTitle($image,$w,$h) {
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| 213 | // Stroke title
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| 214 | if( $this->title->t !== '' ) {
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| 215 |
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| 216 | $margin = 3;
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| 217 |
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| 218 | $y = $this->title->margin;
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| 219 | if( $this->title->halign == 'center' ) {
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| 220 | $this->title->Center(0,$w,$y);
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| 221 | }
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| 222 | elseif( $this->title->halign == 'left' ) {
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| 223 | $this->title->SetPos($this->title->margin+2,$y);
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| 224 | }
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| 225 | elseif( $this->title->halign == 'right' ) {
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| 226 | $indent = 0;
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| 227 | if( $this->doshadow ) {
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| 228 | $indent = $this->shadow_width+2;
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| 229 | }
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| 230 | $this->title->SetPos($w-$this->title->margin-$indent,$y,'right');
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| 231 | }
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| 232 | $this->title->Stroke($image);
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| 233 |
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| 234 | // ... and subtitle
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| 235 | $y += $this->title->GetTextHeight($image) + $margin + $this->subtitle->margin;
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| 236 | if( $this->subtitle->halign == 'center' ) {
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| 237 | $this->subtitle->Center(0,$w,$y);
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| 238 | }
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| 239 | elseif( $this->subtitle->halign == 'left' ) {
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| 240 | $this->subtitle->SetPos($this->subtitle->margin+2,$y);
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| 241 | }
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| 242 | elseif( $this->subtitle->halign == 'right' ) {
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| 243 | $indent = 0;
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| 244 | if( $this->doshadow ) {
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| 245 | $indent = $this->shadow_width+2;
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| 246 | }
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| 247 | $this->subtitle->SetPos($this->img->width-$this->subtitle->margin-$indent,$y,'right');
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| 248 | }
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| 249 | $this->subtitle->Stroke($image);
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| 250 |
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| 251 | // ... and subsubtitle
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| 252 | $y += $this->subtitle->GetTextHeight($image) + $margin + $this->subsubtitle->margin;
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| 253 | if( $this->subsubtitle->halign == 'center' ) {
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| 254 | $this->subsubtitle->Center(0,$w,$y);
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| 255 | }
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| 256 | elseif( $this->subsubtitle->halign == 'left' ) {
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| 257 | $this->subsubtitle->SetPos($this->subsubtitle->margin+2,$y);
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| 258 | }
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| 259 | elseif( $this->subsubtitle->halign == 'right' ) {
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| 260 | $indent = 0;
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| 261 | if( $this->doshadow ) {
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| 262 | $indent = $this->shadow_width+2;
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| 263 | }
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| 264 | $this->subsubtitle->SetPos($w-$this->subsubtitle->margin-$indent,$y,'right');
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| 265 | }
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| 266 | $this->subsubtitle->Stroke($image);
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| 267 |
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| 268 | }
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| 269 | }
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| 270 |
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| 271 | function Stroke($aFileName='') {
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| 272 | // Find out the necessary size for the container image
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| 273 | $w=0; $h=0;
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| 274 | for($i=0; $i < $this->iCnt; ++$i ) {
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| 275 | $maxw = $this->iGraphs[$i][1]+$this->iGraphs[$i][5];
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| 276 | $maxh = $this->iGraphs[$i][2]+$this->iGraphs[$i][6];
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| 277 | $w = max( $w, $maxw );
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| 278 | $h = max( $h, $maxh );
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| 279 | }
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| 280 | $w += $this->lm+$this->rm;
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| 281 | $h += $this->tm+$this->bm;
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| 282 |
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| 283 | // User specified width,height overrides
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| 284 | if( $this->iWidth !== NULL && $this->iWidth !== 0 ) $w = $this->iWidth;
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| 285 | if( $this->iHeight!== NULL && $this->iHeight !== 0) $h = $this->iHeight;
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| 286 |
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| 287 | if( $this->doshadow ) {
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| 288 | $w += $this->shadow_width;
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| 289 | $h += $this->shadow_width;
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| 290 | }
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| 291 |
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| 292 | $image = new Image($w,$h);
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| 293 | $image->SetImgFormat( $this->image_format,$this->image_quality);
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| 294 |
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| 295 | if( $this->doshadow ) {
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| 296 | $image->SetColor($this->iFrameColor);
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| 297 | $image->ShadowRectangle(0,0,$w-1,$h-1,$this->iFillColor,$this->shadow_width,$this->shadow_color);
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| 298 | $w -= $this->shadow_width;
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| 299 | $h -= $this->shadow_width;
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| 300 | }
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| 301 | else {
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| 302 | $image->SetColor($this->iFillColor);
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| 303 | $image->FilledRectangle(0,0,$w-1,$h-1);
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| 304 | }
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| 305 | $image->SetExpired($this->expired);
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| 306 |
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| 307 | $this->img = $image->img;
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| 308 | $this->_strokeBackgroundImage();
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| 309 |
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| 310 | if( $this->iDoFrame && ! $this->doshadow ) {
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| 311 | $image->SetColor($this->iFrameColor);
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| 312 | $image->SetLineWeight($this->iFrameWeight);
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| 313 | $image->Rectangle(0,0,$w-1,$h-1);
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| 314 | }
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| 315 |
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| 316 | // Copy all sub graphs to the container
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| 317 | for($i=0; $i < $this->iCnt; ++$i ) {
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| 318 | $image->CopyMerge($this->iGraphs[$i][0],
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| 319 | $this->iGraphs[$i][1]+$this->lm,$this->iGraphs[$i][2]+$this->tm,
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| 320 | $this->iGraphs[$i][3],$this->iGraphs[$i][4],
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| 321 | $this->iGraphs[$i][5],$this->iGraphs[$i][6],
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| 322 | -1,-1, /* Full from width and height */
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| 323 | $this->iGraphs[$i][7]);
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| 324 |
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| 325 |
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| 326 | }
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| 327 |
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| 328 | $this->StrokeTitle($image,$w,$h);
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| 329 | $this->footer->Stroke($image);
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| 330 |
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| 331 | // Output image
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| 332 | if( $aFileName == _IMG_HANDLER ) {
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| 333 | return $image->img;
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| 334 | }
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| 335 | else {
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| 336 | //Finally stream the generated picture
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| 337 | $this->cache = new ImgStreamCache();
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| 338 | $this->cache->PutAndStream($image,$this->cache_name,$this->inline,$aFileName);
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| 339 | }
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| 340 | }
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| 341 | }
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| 342 |
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| 343 | // EOF
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| 344 |
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| 345 | ?>
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