<?php //======================================================================= // File: JPGRAPH_ICONPLOT.PHP // Description: PHP4 Graph Plotting library. Extension module. // Created: 2004-02-18 // Author: Johan Persson (johanp@aditus.nu) // Ver: $Id: jpgraph_iconplot.php,v 1.1 2006/07/07 13:37:14 powles Exp $ // // Copyright (c) Aditus Consulting. All rights reserved. //======================================================================== //=================================================== // CLASS IconPlot // Description: Make it possible to add a (small) image // to the graph //=================================================== class IconPlot { var $iHorAnchor='left',$iVertAnchor='top'; var $iX=0,$iY=0; var $iFile=''; var $iScale=1.0,$iMix=100; var $iAnchors = array('left','right','top','bottom','center'); var $iCountryFlag='',$iCountryStdSize=3; var $iScalePosY=null,$iScalePosX=null; var $iImgString=''; function IconPlot($aFile="",$aX=0,$aY=0,$aScale=1.0,$aMix=100) { $this->iFile = $aFile; $this->iX=$aX; $this->iY=$aY; $this->iScale= $aScale; if( $aMix < 0 || $aMix > 100 ) { JpGraphError::RaiseL(8001); //('Mix value for icon must be between 0 and 100.'); } $this->iMix = $aMix ; } function CreateFromString($aStr) { $this->iImgString = $aStr; } function SetCountryFlag($aFlag,$aX=0,$aY=0,$aScale=1.0,$aMix=100,$aStdSize=3) { $this->iCountryFlag = $aFlag; $this->iX=$aX; $this->iY=$aY; $this->iScale= $aScale; if( $aMix < 0 || $aMix > 100 ) { JpGraphError::RaiseL(8001);//'Mix value for icon must be between 0 and 100.'); } $this->iMix = $aMix; $this->iCountryStdSize = $aStdSize; } function SetPos($aX,$aY) { $this->iX=$aX; $this->iY=$aY; } function SetScalePos($aX,$aY) { $this->iScalePosX = $aX; $this->iScalePosY = $aY; } function SetScale($aScale) { $this->iScale = $aScale; } function SetMix($aMix) { if( $aMix < 0 || $aMix > 100 ) { JpGraphError::RaiseL(8001);//('Mix value for icon must be between 0 and 100.'); } $this->iMix = $aMix ; } function SetAnchor($aXAnchor='left',$aYAnchor='center') { if( !in_array($aXAnchor,$this->iAnchors) || !in_array($aYAnchor,$this->iAnchors) ) { JpGraphError::RaiseL(8002);//("Anchor position for icons must be one of 'top', 'bottom', 'left', 'right' or 'center'"); } $this->iHorAnchor=$aXAnchor; $this->iVertAnchor=$aYAnchor; } function PreStrokeAdjust($aGraph) { // Nothing to do ... } function DoLegend($aGraph) { // Nothing to do ... } function Max() { return array(false,false); } // The next four function are framework function tht gets called // from Gantt and is not menaiungfull in the context of Icons but // they must be implemented to avoid errors. function GetMaxDate() { return false; } function GetMinDate() { return false; } function GetLineNbr() { return 0; } function GetAbsHeight() {return 0; } function Min() { return array(false,false); } function StrokeMargin(&$aImg) { return true; } function Stroke(&$aImg,$axscale,$ayscale) { $this->StrokeWithScale($aImg,$axscale,$ayscale); } function StrokeWithScale(&$aImg,$axscale,$ayscale) { if( $this->iScalePosX === null || $this->iScalePosY === null ) { $this->_Stroke($aImg); } else { $this->_Stroke($aImg, round($axscale->Translate($this->iScalePosX)), round($ayscale->Translate($this->iScalePosY))); } } function GetWidthHeight() { $dummy=0; return $this->_Stroke($dummy,null,null,true); } function _Stroke(&$aImg,$x=null,$y=null,$aReturnWidthHeight=false) { if( $this->iFile != '' && $this->iCountryFlag != '' ) { JpGraphError::RaiseL(8003);//('It is not possible to specify both an image file and a country flag for the same icon.'); } if( $this->iFile != '' ) { $gdimg = Graph::LoadBkgImage('',$this->iFile); } elseif( $this->iImgString != '') { $gdimg = Image::CreateFromString($this->iImgString); } else { if( ! class_exists('FlagImages') ) { JpGraphError::RaiseL(8004);//('In order to use Country flags as icons you must include the "jpgraph_flags.php" file.'); } $fobj = new FlagImages($this->iCountryStdSize); $dummy=''; $gdimg = $fobj->GetImgByName($this->iCountryFlag,$dummy); } $iconw = imagesx($gdimg); $iconh = imagesy($gdimg); if( $aReturnWidthHeight ) { return array(round($iconw*$this->iScale),round($iconh*$this->iScale)); } if( $x !== null && $y !== null ) { $this->iX = $x; $this->iY = $y; } if( $this->iX >= 0 && $this->iX <= 1.0 ) { $w = imagesx($aImg->img); $this->iX = round($w*$this->iX); } if( $this->iY >= 0 && $this->iY <= 1.0 ) { $h = imagesy($aImg->img); $this->iY = round($h*$this->iY); } if( $this->iHorAnchor == 'center' ) $this->iX -= round($iconw*$this->iScale/2); if( $this->iHorAnchor == 'right' ) $this->iX -= round($iconw*$this->iScale); if( $this->iVertAnchor == 'center' ) $this->iY -= round($iconh*$this->iScale/2); if( $this->iVertAnchor == 'bottom' ) $this->iY -= round($iconh*$this->iScale); $aImg->CopyMerge($gdimg,$this->iX,$this->iY,0,0, round($iconw*$this->iScale),round($iconh*$this->iScale), $iconw,$iconh, $this->iMix); } } ?>