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