| <?php | <?php |
| /*======================================================================= | /*======================================================================= |
| // File: JPGRAPH_CANVAS.PHP | // File: JPGRAPH_CANVAS.PHP |
| // Description: Canvas drawing extension for JpGraph | // Description: Canvas drawing extension for JpGraph |
| // Created: 2001-01-08 | // Created: 2001-01-08 |
| // Ver: $Id: jpgraph_canvas.php 1106 2009-02-22 20:16:35Z ljp $ | // Ver: $Id: jpgraph_canvas.php 1106 2009-02-22 20:16:35Z ljp $ |
| // | // |
| // Copyright (c) Aditus Consulting. All rights reserved. | // Copyright (c) Aditus Consulting. All rights reserved. |
| //======================================================================== | //======================================================================== |
| */ | */ |
| //=================================================== | //=================================================== |
| // CLASS CanvasGraph | // CLASS CanvasGraph |
| // Description: Creates a simple canvas graph which | // Description: Creates a simple canvas graph which |
| // might be used together with the basic Image drawing | // might be used together with the basic Image drawing |
| // primitives. Useful to auickoly produce some arbitrary | // primitives. Useful to auickoly produce some arbitrary |
| // graphic which benefits from all the functionality in the | // graphic which benefits from all the functionality in the |
| // graph liek caching for example. | // graph liek caching for example. |
| //=================================================== | //=================================================== |
| class CanvasGraph extends Graph { | class CanvasGraph extends Graph { |
| //--------------- | //--------------- |
| // CONSTRUCTOR | // CONSTRUCTOR |
| function __construct($aWidth=300,$aHeight=200,$aCachedName="",$timeout=0,$inline=1) { | function __construct($aWidth=300,$aHeight=200,$aCachedName="",$timeout=0,$inline=1) { |
| parent::__construct($aWidth,$aHeight,$aCachedName,$timeout,$inline); | parent::__construct($aWidth,$aHeight,$aCachedName,$timeout,$inline); |
| } | } |
| //--------------- | //--------------- |
| // PUBLIC METHODS | // PUBLIC METHODS |
| function InitFrame() { | function InitFrame() { |
| $this->StrokePlotArea(); | $this->StrokePlotArea(); |
| } | } |
| // Method description | // Method description |
| function Stroke($aStrokeFileName="") { | function Stroke($aStrokeFileName="") { |
| if( $this->texts != null ) { | if( $this->texts != null ) { |
| for($i=0; $i < count($this->texts); ++$i) { | for($i=0; $i < count($this->texts); ++$i) { |
| $this->texts[$i]->Stroke($this->img); | $this->texts[$i]->Stroke($this->img); |
| } | } |
| } | } |
| if( $this->iTables !== null ) { | if( $this->iTables !== null ) { |
| for($i=0; $i < count($this->iTables); ++$i) { | for($i=0; $i < count($this->iTables); ++$i) { |
| $this->iTables[$i]->Stroke($this->img); | $this->iTables[$i]->Stroke($this->img); |
| } | } |
| } | } |
| $this->StrokeTitles(); | $this->StrokeTitles(); |
| // If the filename is the predefined value = '_csim_special_' | // If the filename is the predefined value = '_csim_special_' |
| // we assume that the call to stroke only needs to do enough | // we assume that the call to stroke only needs to do enough |
| // to correctly generate the CSIM maps. | // to correctly generate the CSIM maps. |
| // We use this variable to skip things we don't strictly need | // We use this variable to skip things we don't strictly need |
| // to do to generate the image map to improve performance | // to do to generate the image map to improve performance |
| // a best we can. Therefor you will see a lot of tests !$_csim in the | // a best we can. Therefor you will see a lot of tests !$_csim in the |
| // code below. | // code below. |
| $_csim = ($aStrokeFileName===_CSIM_SPECIALFILE); | $_csim = ($aStrokeFileName===_CSIM_SPECIALFILE); |
| // We need to know if we have stroked the plot in the | // We need to know if we have stroked the plot in the |
| // GetCSIMareas. Otherwise the CSIM hasn't been generated | // GetCSIMareas. Otherwise the CSIM hasn't been generated |
| // and in the case of GetCSIM called before stroke to generate | // and in the case of GetCSIM called before stroke to generate |
| // CSIM without storing an image to disk GetCSIM must call Stroke. | // CSIM without storing an image to disk GetCSIM must call Stroke. |
| $this->iHasStroked = true; | $this->iHasStroked = true; |
| if( !$_csim ) { | if( !$_csim ) { |
| // Should we do any final image transformation | // Should we do any final image transformation |
| if( $this->iImgTrans ) { | if( $this->iImgTrans ) { |
| if( !class_exists('ImgTrans') ) { | if( !class_exists('ImgTrans') ) { |
| require_once('jpgraph_imgtrans.php'); | require_once('jpgraph_imgtrans.php'); |
| } | } |
| $tform = new ImgTrans($this->img->img); | $tform = new ImgTrans($this->img->img); |
| $this->img->img = $tform->Skew3D($this->iImgTransHorizon,$this->iImgTransSkewDist, | $this->img->img = $tform->Skew3D($this->iImgTransHorizon,$this->iImgTransSkewDist, |
| $this->iImgTransDirection,$this->iImgTransHighQ, | $this->iImgTransDirection,$this->iImgTransHighQ, |
| $this->iImgTransMinSize,$this->iImgTransFillColor, | $this->iImgTransMinSize,$this->iImgTransFillColor, |
| $this->iImgTransBorder); | $this->iImgTransBorder); |
| } | } |
| // If the filename is given as the special _IMG_HANDLER | // If the filename is given as the special _IMG_HANDLER |
| // then the image handler is returned and the image is NOT | // then the image handler is returned and the image is NOT |
| // streamed back | // streamed back |
| if( $aStrokeFileName == _IMG_HANDLER ) { | if( $aStrokeFileName == _IMG_HANDLER ) { |
| return $this->img->img; | return $this->img->img; |
| } | } |
| else { | else { |
| // Finally stream the generated picture | // Finally stream the generated picture |
| $this->cache->PutAndStream($this->img,$this->cache_name,$this->inline,$aStrokeFileName); | $this->cache->PutAndStream($this->img,$this->cache_name,$this->inline,$aStrokeFileName); |
| return true; | return true; |
| } | } |
| } | } |
| } | } |
| } // Class | } // Class |
| /* EOF */ | /* EOF */ |
| ?> | ?> |