Subversion Repositories Applications.annuaire

<?php

/*=======================================================================

 // File:        JPGRAPH_MGRAPH.PHP

 // Description: Class to handle multiple graphs in the same image

 // Created:     2006-01-15

 // Ver:         $Id: jpgraph_mgraph.php 1770 2009-08-17 06:10:22Z ljp $

 //

 // Copyright (c) Aditus Consulting. All rights reserved.

 //========================================================================

 */

//=============================================================================

// CLASS MGraph

// Description: Create a container image that can hold several graph

//=============================================================================

class MGraph {

    public $title = null, $subtitle = null, $subsubtitle = null;

    protected $img=NULL;

    protected $iCnt=0,$iGraphs = array(); // image_handle, x, y, fx, fy, sizex, sizey

    protected $iFillColor='white', $iCurrentColor=0;

    protected $lm=4,$rm=4,$tm=4,$bm=4;

    protected $iDoFrame = FALSE, $iFrameColor = 'black', $iFrameWeight = 1;

    protected $iLineWeight = 1;

    protected $expired=false;

    protected $cache=null,$cache_name = '',$inline=true;

    protected $image_format='png',$image_quality=75;

    protected $iWidth=NULL,$iHeight=NULL;

    protected $background_image='',$background_image_center=true,

    $backround_image_format='',$background_image_mix=100,

    $background_image_y=NULL, $background_image_x=NULL;

    private $doshadow=false, $shadow_width=4, $shadow_color='gray@0.5';

    public $footer;

    // Create a new instane of the combined graph

    function __construct($aWidth=NULL,$aHeight=NULL,$aCachedName='',$aTimeOut=0,$aInline=true) {

        $this->iWidth = $aWidth;

        $this->iHeight = $aHeight;

        // If the cached version exist just read it directly from the

        // cache, stream it back to browser and exit

        if( $aCachedName!='' && READ_CACHE && $aInline ) {

            $this->cache = new ImgStreamCache();

            $this->cache->SetTimeOut($aTimeOut);

            $image = new Image();

            if( $this->cache->GetAndStream($image,$aCachedName) ) {

                exit();

            }

        }

        $this->inline = $aInline;

        $this->cache_name = $aCachedName;

        $this->title = new Text();

        $this->title->ParagraphAlign('center');

        $this->title->SetFont(FF_FONT2,FS_BOLD);

        $this->title->SetMargin(3);

        $this->title->SetAlign('center');

        $this->subtitle = new Text();

        $this->subtitle->ParagraphAlign('center');

        $this->subtitle->SetFont(FF_FONT1,FS_BOLD);

        $this->subtitle->SetMargin(3);

        $this->subtitle->SetAlign('center');

        $this->subsubtitle = new Text();

        $this->subsubtitle->ParagraphAlign('center');

        $this->subsubtitle->SetFont(FF_FONT1,FS_NORMAL);

        $this->subsubtitle->SetMargin(3);

        $this->subsubtitle->SetAlign('center');

        $this->footer = new Footer();

    }

    // Specify background fill color for the combined graph

    function SetFillColor($aColor) {

        $this->iFillColor = $aColor;

    }

    // Add a frame around the combined graph

    function SetFrame($aFlg,$aColor='black',$aWeight=1) {

        $this->iDoFrame = $aFlg;

        $this->iFrameColor = $aColor;

        $this->iFrameWeight = $aWeight;

    }

    // Specify a background image blend

    function SetBackgroundImageMix($aMix) {

        $this->background_image_mix = $aMix ;

    }

    // Specify a background image

    function SetBackgroundImage($aFileName,$aCenter_aX=NULL,$aY=NULL) {

        // Second argument can be either a boolean value or

        // a numeric

        $aCenter=TRUE;

        $aX=NULL;

        if( is_numeric($aCenter_aX) ) {

            $aX=$aCenter_aX;

        }

        // Get extension to determine image type

        $e = explode('.',$aFileName);

        if( !$e ) {

            JpGraphError::RaiseL(12002,$aFileName);

            //('Incorrect file name for MGraph::SetBackgroundImage() : '.$aFileName.' Must have a valid image extension (jpg,gif,png) when using autodetection of image type');

        }

        $valid_formats = array('png', 'jpg', 'gif');

        $aImgFormat = strtolower($e[count($e)-1]);

        if ($aImgFormat == 'jpeg')  {

            $aImgFormat = 'jpg';

        }

        elseif (!in_array($aImgFormat, $valid_formats) )  {

            JpGraphError::RaiseL(12003,$aImgFormat,$aFileName);

            //('Unknown file extension ($aImgFormat) in MGraph::SetBackgroundImage() for filename: '.$aFileName);

        }

        $this->background_image = $aFileName;

        $this->background_image_center=$aCenter;

        $this->background_image_format=$aImgFormat;

        $this->background_image_x = $aX;

        $this->background_image_y = $aY;

    }

    function _strokeBackgroundImage() {

        if( $this->background_image == '' ) return;

        $bkgimg = Graph::LoadBkgImage('',$this->background_image);

        // Background width & Heoght

        $bw = imagesx($bkgimg);

        $bh = imagesy($bkgimg);

        // Canvas width and height

        $cw = imagesx($this->img);

        $ch = imagesy($this->img);

        if( $this->doshadow ) {

            $cw -= $this->shadow_width;

            $ch -= $this->shadow_width;

        }

        if( $this->background_image_x === NULL || $this->background_image_y === NULL ) {

            if( $this->background_image_center ) {

                // Center original image in the plot area

                $x = round($cw/2-$bw/2); $y = round($ch/2-$bh/2);

            }

            else {

                // Just copy the image from left corner, no resizing

                $x=0; $y=0;

            }

        }

        else {

            $x = $this->background_image_x;

            $y = $this->background_image_y;

        }

        imagecopymerge($this->img,$bkgimg,$x,$y,0,0,$bw,$bh,$this->background_image_mix);

    }

    function AddMix($aGraph,$x=0,$y=0,$mix=100,$fx=0,$fy=0,$w=0,$h=0) {

        $this->_gdImgHandle($aGraph->Stroke( _IMG_HANDLER),$x,$y,$fx=0,$fy=0,$w,$h,$mix);

    }

    function Add($aGraph,$x=0,$y=0,$fx=0,$fy=0,$w=0,$h=0) {

        $this->_gdImgHandle($aGraph->Stroke( _IMG_HANDLER),$x,$y,$fx=0,$fy=0,$w,$h);

    }

    function _gdImgHandle($agdCanvas,$x,$y,$fx=0,$fy=0,$w=0,$h=0,$mix=100) {

        if( $w == 0 ) {

            $w = @imagesx($agdCanvas);

        }

        if( $w === NULL ) {

            JpGraphError::RaiseL(12007);

            //('Argument to MGraph::Add() is not a valid GD image handle.');

            return;

        }

        if( $h == 0 ) {

            $h = @imagesy($agdCanvas);

        }

        $this->iGraphs[$this->iCnt++] = array($agdCanvas,$x,$y,$fx,$fy,$w,$h,$mix);

    }

    function SetMargin($lm,$rm,$tm,$bm) {

        $this->lm = $lm;

        $this->rm = $rm;

        $this->tm = $tm;

        $this->bm = $bm;

    }

    function SetExpired($aFlg=true) {

        $this->expired = $aFlg;

    }

    function SetImgFormat($aFormat,$aQuality=75) {

        $this->image_format = $aFormat;

        $this->image_quality = $aQuality;

    }

    // Set the shadow around the whole image

    function SetShadow($aShowShadow=true,$aShadowWidth=4,$aShadowColor='gray@0.3') {

        $this->doshadow = $aShowShadow;

        $this->shadow_color = $aShadowColor;

        $this->shadow_width = $aShadowWidth;

        $this->footer->iBottomMargin += $aShadowWidth;

        $this->footer->iRightMargin += $aShadowWidth;

    }

    function StrokeTitle($image,$w,$h) {

        // Stroke title

        if( $this->title->t !== '' ) {

            $margin = 3;

            $y = $this->title->margin;

            if( $this->title->halign == 'center' ) {

                $this->title->Center(0,$w,$y);

            }

            elseif( $this->title->halign == 'left' ) {

                $this->title->SetPos($this->title->margin+2,$y);

            }

            elseif( $this->title->halign == 'right' ) {

                $indent = 0;

                if( $this->doshadow ) {

                    $indent = $this->shadow_width+2;

                }

                $this->title->SetPos($w-$this->title->margin-$indent,$y,'right');

            }

            $this->title->Stroke($image);

            // ... and subtitle

            $y += $this->title->GetTextHeight($image) + $margin + $this->subtitle->margin;

            if( $this->subtitle->halign == 'center' ) {

                $this->subtitle->Center(0,$w,$y);

            }

            elseif( $this->subtitle->halign == 'left' ) {

                $this->subtitle->SetPos($this->subtitle->margin+2,$y);

            }

            elseif( $this->subtitle->halign == 'right' ) {

                $indent = 0;

                if( $this->doshadow ) {

                    $indent = $this->shadow_width+2;

                }

                $this->subtitle->SetPos($this->img->width-$this->subtitle->margin-$indent,$y,'right');

            }

            $this->subtitle->Stroke($image);

            // ... and subsubtitle

            $y += $this->subtitle->GetTextHeight($image) + $margin + $this->subsubtitle->margin;

            if( $this->subsubtitle->halign == 'center' ) {

                $this->subsubtitle->Center(0,$w,$y);

            }

            elseif( $this->subsubtitle->halign == 'left' ) {

                $this->subsubtitle->SetPos($this->subsubtitle->margin+2,$y);

            }

            elseif( $this->subsubtitle->halign == 'right' ) {

                $indent = 0;

                if( $this->doshadow ) {

                    $indent = $this->shadow_width+2;

                }

                $this->subsubtitle->SetPos($w-$this->subsubtitle->margin-$indent,$y,'right');

            }

            $this->subsubtitle->Stroke($image);

        }

    }

    function Stroke($aFileName='') {

        // Find out the necessary size for the container image

        $w=0; $h=0;

        for($i=0; $i < $this->iCnt; ++$i ) {

            $maxw = $this->iGraphs[$i][1]+$this->iGraphs[$i][5];

            $maxh = $this->iGraphs[$i][2]+$this->iGraphs[$i][6];

            $w = max( $w, $maxw );

            $h = max( $h, $maxh );

        }

        $w += $this->lm+$this->rm;

        $h += $this->tm+$this->bm;

        // User specified width,height overrides

        if( $this->iWidth !== NULL && $this->iWidth !== 0 ) $w = $this->iWidth;

        if( $this->iHeight!== NULL && $this->iHeight !== 0) $h = $this->iHeight;

        if( $this->doshadow ) {

            $w += $this->shadow_width;

            $h += $this->shadow_width;

        }

        $image = new Image($w,$h);

        $image->SetImgFormat( $this->image_format,$this->image_quality);

        if( $this->doshadow ) {

            $image->SetColor($this->iFrameColor);

            $image->ShadowRectangle(0,0,$w-1,$h-1,$this->iFillColor,$this->shadow_width,$this->shadow_color);

            $w -= $this->shadow_width;

            $h -= $this->shadow_width;

        }

        else {

            $image->SetColor($this->iFillColor);

            $image->FilledRectangle(0,0,$w-1,$h-1);

        }

        $image->SetExpired($this->expired);

        $this->img = $image->img;

        $this->_strokeBackgroundImage();

        if( $this->iDoFrame && ! $this->doshadow ) {

           $image->SetColor($this->iFrameColor);

           $image->SetLineWeight($this->iFrameWeight);

           $image->Rectangle(0,0,$w-1,$h-1);

        }

        // Copy all sub graphs to the container

        for($i=0; $i < $this->iCnt; ++$i ) {

            $image->CopyMerge($this->iGraphs[$i][0],

                            $this->iGraphs[$i][1]+$this->lm,$this->iGraphs[$i][2]+$this->tm,

                            $this->iGraphs[$i][3],$this->iGraphs[$i][4],

                            $this->iGraphs[$i][5],$this->iGraphs[$i][6],

                            -1,-1, /* Full from width and height */

                            $this->iGraphs[$i][7]);

        }

        $this->StrokeTitle($image,$w,$h);

        $this->footer->Stroke($image);

        // Output image

        if( $aFileName == _IMG_HANDLER ) {

            return $image->img;

        }

        else {

            //Finally stream the generated picture

            $this->cache = new ImgStreamCache();

            $this->cache->PutAndStream($image,$this->cache_name,$this->inline,$aFileName);

        }

    }

}

// EOF

?>