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