| 1 | <?php
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| 2 | /*=======================================================================
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| 3 | // File: JPGRAPH_CANVAS.PHP
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| 4 | // Description: Canvas drawing extension for JpGraph
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| 5 | // Created: 2001-01-08
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| 6 | // Author: Johan Persson (johanp@aditus.nu)
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| 7 | // Ver: $Id: jpgraph_canvas.php,v 1.12 2003/01/09 12:56:56 aditus Exp $
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| 8 | //
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| 9 | // License: This code is released under QPL
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| 10 | // Copyright (C) 2001,2002 Johan Persson
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| 11 | //========================================================================
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| 12 | */
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| 13 |
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| 14 | //===================================================
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| 15 | // CLASS CanvasGraph
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| 16 | // Description: Creates a simple canvas graph which
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| 17 | // might be used together with the basic Image drawing
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| 18 | // primitives. Useful to auickoly produce some arbitrary
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| 19 | // graphic which benefits from all the functionality in the
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| 20 | // graph liek caching for example.
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| 21 | //===================================================
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| 22 | class CanvasGraph extends Graph {
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| 23 | //---------------
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| 24 | // CONSTRUCTOR
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| 25 | function CanvasGraph($aWidth=300,$aHeight=200,$aCachedName="",$timeout=0,$inline=1) {
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| 26 | $this->Graph($aWidth,$aHeight,$aCachedName,$timeout,$inline);
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| 27 | }
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| 28 |
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| 29 | //---------------
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| 30 | // PUBLIC METHODS
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| 31 |
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| 32 | function InitFrame() {
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| 33 | $this->StrokePlotArea();
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| 34 | }
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| 35 |
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| 36 | // Method description
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| 37 | function Stroke($aStrokeFileName="") {
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| 38 | if( $this->texts != null ) {
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| 39 | for($i=0; $i<count($this->texts); ++$i) {
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| 40 | $this->texts[$i]->Stroke($this->img);
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| 41 | }
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| 42 | }
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| 43 | $this->StrokeTitles();
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| 44 |
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| 45 | // If the filename is given as the special _IMG_HANDLER
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| 46 | // then the image handler is returned and the image is NOT
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| 47 | // streamed back
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| 48 | if( $aStrokeFileName == _IMG_HANDLER ) {
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| 49 | return $this->img->img;
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| 50 | }
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| 51 | else {
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| 52 | // Finally stream the generated picture
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| 53 | $this->cache->PutAndStream($this->img,$this->cache_name,$this->inline,
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| 54 | $aStrokeFileName);
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| 55 | }
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| 56 | }
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| 57 | } // Class
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| 58 | /* EOF */
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| 59 | ?>
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