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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 | <?php /*======================================================================= // File: JPGRAPH_CANVAS.PHP // Description: Canvas drawing extension for JpGraph // Created: 2001-01-08 // Ver: $Id: jpgraph_canvas.php 1106 2009-02-22 20:16:35Z ljp $ // // Copyright (c) Aditus Consulting. All rights reserved. //======================================================================== */ //=================================================== // CLASS CanvasGraph // Description: Creates a simple canvas graph which // might be used together with the basic Image drawing // primitives. Useful to auickoly produce some arbitrary // graphic which benefits from all the functionality in the // graph liek caching for example. //=================================================== class CanvasGraph extends Graph { //--------------- // CONSTRUCTOR function __construct($aWidth=300,$aHeight=200,$aCachedName="",$timeout=0,$inline=1) { parent::__construct($aWidth,$aHeight,$aCachedName,$timeout,$inline); } //--------------- // PUBLIC METHODS function InitFrame() { $this->StrokePlotArea(); } // Method description function Stroke($aStrokeFileName="") { if( $this->texts != null ) { for($i=0; $i < count($this->texts); ++$i) { $this->texts[$i]->Stroke($this->img); } } if( $this->iTables !== null ) { for($i=0; $i < count($this->iTables); ++$i) { $this->iTables[$i]->Stroke($this->img); } } $this->StrokeTitles(); // If the filename is the predefined value = '_csim_special_' // we assume that the call to stroke only needs to do enough // to correctly generate the CSIM maps. // We use this variable to skip things we don't strictly need // to do to generate the image map to improve performance // a best we can. Therefor you will see a lot of tests !$_csim in the // code below. $_csim = ($aStrokeFileName===_CSIM_SPECIALFILE); // We need to know if we have stroked the plot in the // GetCSIMareas. Otherwise the CSIM hasn't been generated // and in the case of GetCSIM called before stroke to generate // CSIM without storing an image to disk GetCSIM must call Stroke. $this->iHasStroked = true; if( !$_csim ) { // Should we do any final image transformation if( $this->iImgTrans ) { if( !class_exists('ImgTrans') ) { require_once('jpgraph_imgtrans.php'); } $tform = new ImgTrans($this->img->img); $this->img->img = $tform->Skew3D($this->iImgTransHorizon,$this->iImgTransSkewDist, $this->iImgTransDirection,$this->iImgTransHighQ, $this->iImgTransMinSize,$this->iImgTransFillColor, $this->iImgTransBorder); } // If the filename is given as the special _IMG_HANDLER // then the image handler is returned and the image is NOT // streamed back if( $aStrokeFileName == _IMG_HANDLER ) { return $this->img->img; } else { // Finally stream the generated picture $this->cache->PutAndStream($this->img,$this->cache_name,$this->inline,$aStrokeFileName); return true; } } } } // Class /* EOF */ ?> |