web/public_php/admin/jpgraph/jpgraph_canvas.php

   1 <?php
   2 /*=======================================================================
   3 // File:        JPGRAPH_CANVAS.PHP
   4 // Description: Canvas drawing extension for JpGraph
   5 // Created:     2001-01-08
   6 // Author:      Johan Persson (johanp@aditus.nu)
   7 // Ver:         $Id: jpgraph_canvas.php,v 1.1 2006/07/07 13:37:14 powles Exp $
   8 //
   9 // Copyright (c) Aditus Consulting. All rights reserved.
  10 //========================================================================
  11 */
  12
  13 //===================================================
  14 // CLASS CanvasGraph
  15 // Description: Creates a simple canvas graph which
  16 // might be used together with the basic Image drawing
  17 // primitives. Useful to auickoly produce some arbitrary
  18 // graphic which benefits from all the functionality in the
  19 // graph liek caching for example.
  20 //===================================================
  21 class CanvasGraph extends Graph {
  22 //---------------
  23 // CONSTRUCTOR
  24     function CanvasGraph($aWidth=300,$aHeight=200,$aCachedName="",$timeout=0,$inline=1) {
  25         $this->Graph($aWidth,$aHeight,$aCachedName,$timeout,$inline);
  26     }
  27
  28 //---------------
  29 // PUBLIC METHODS
  30
  31     function InitFrame() {
  32         $this->StrokePlotArea();
  33     }
  34
  35     // Method description
  36     function Stroke($aStrokeFileName="") {
  37         if( $this->texts != null ) {
  38             for($i=0; $i < count($this->texts); ++$i) {
  39                 $this->texts[$i]->Stroke($this->img);
  40             }
  41         }
  42         if( $this->iTables !== null ) {
  43             for($i=0; $i < count($this->iTables); ++$i) {
  44                 $this->iTables[$i]->Stroke($this->img);
  45             }
  46         }
  47         $this->StrokeTitles();
  48
  49         // Should we do any final image transformation
  50         if( $this->iImgTrans ) {
  51             if( !class_exists('ImgTrans') ) {
  52                 require_once('jpgraph_imgtrans.php');
  53             }
  54
  55             $tform = new ImgTrans($this->img->img);
  56             $this->img->img = $tform->Skew3D($this->iImgTransHorizon,$this->iImgTransSkewDist,
  57                                              $this->iImgTransDirection,$this->iImgTransHighQ,
  58                                              $this->iImgTransMinSize,$this->iImgTransFillColor,
  59                                              $this->iImgTransBorder);
  60         }
  61
  62
  63         // If the filename is given as the special _IMG_HANDLER
  64         // then the image handler is returned and the image is NOT
  65         // streamed back
  66         if( $aStrokeFileName == _IMG_HANDLER ) {
  67             return $this->img->img;
  68         }
  69         else {
  70             // Finally stream the generated picture
  71             $this->cache->PutAndStream($this->img,$this->cache_name,$this->inline,$aStrokeFileName);
  72             return true;
  73         }
  74     }
  75 } // Class
  76 /* EOF */
  77 ?>