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<?php
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/*=======================================================================
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// File: JPGRAPH_CANVTOOLS.PHP
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// Description: Some utilities for text and shape drawing on a canvas
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// Created: 2002-08-23
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// Author: Johan Persson (johanp@aditus.nu)
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// Ver: $Id: jpgraph_canvtools.php,v 1.1 2004/06/15 10:13:19 jpm Exp $
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//
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// License: This code is released under QPL
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// Copyright (C) 2001,2002 Johan Persson
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//========================================================================
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*/
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DEFINE('CORNER_TOPLEFT',0);
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DEFINE('CORNER_TOPRIGHT',1);
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DEFINE('CORNER_BOTTOMRIGHT',2);
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DEFINE('CORNER_BOTTOMLEFT',3);
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//===================================================
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// CLASS CanvasScale
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// Description: Define a scale for canvas so we
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// can abstract away with absolute pixels
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//===================================================
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class CanvasScale {
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var $g;
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var $w,$h;
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var $ixmin=0,$ixmax=10,$iymin=0,$iymax=10;
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function CanvasScale(&$graph,$xmin=0,$xmax=10,$ymin=0,$ymax=10) {
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$this->g = &$graph;
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$this->w = $graph->img->width;
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$this->h = $graph->img->height;
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$this->ixmin = $xmin;
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$this->ixmax = $xmax;
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$this->iymin = $ymin;
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$this->iymax = $ymax;
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}
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function Set($xmin=0,$xmax=10,$ymin=0,$ymax=10) {
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$this->ixmin = $xmin;
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$this->ixmax = $xmax;
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$this->iymin = $ymin;
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$this->iymax = $ymax;
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}
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function Translate($x,$y) {
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$xp = round(($x-$this->ixmin)/($this->ixmax - $this->ixmin) * $this->w);
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$yp = round(($y-$this->iymin)/($this->iymax - $this->iymin) * $this->h);
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return array($xp,$yp);
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}
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function TranslateX($x) {
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$xp = round(($x-$this->ixmin)/($this->ixmax - $this->ixmin) * $this->w);
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return $xp;
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}
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function TranslateY($y) {
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$yp = round(($y-$this->iymin)/($this->iymax - $this->iymin) * $this->h);
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return $yp;
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}
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}
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//===================================================
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// CLASS Shape
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// Description: Methods to draw shapes on canvas
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//===================================================
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class Shape {
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var $img,$scale;
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function Shape(&$aGraph,&$scale) {
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$this->img = &$aGraph->img;
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$this->img->SetColor('black');
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$this->scale = &$scale;
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}
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function SetColor($aColor) {
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$this->img->SetColor($aColor);
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}
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function Line($x1,$y1,$x2,$y2) {
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list($x1,$y1) = $this->scale->Translate($x1,$y1);
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list($x2,$y2) = $this->scale->Translate($x2,$y2);
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$this->img->Line($x1,$y1,$x2,$y2);
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}
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function Polygon($p,$aClosed=false) {
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$n=count($p);
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for($i=0; $i < $n; $i+=2 ) {
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$p[$i] = $this->scale->TranslateX($p[$i]);
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$p[$i+1] = $this->scale->TranslateY($p[$i+1]);
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}
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$this->img->Polygon($p,$aClosed);
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}
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function FilledPolygon($p) {
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$n=count($p);
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for($i=0; $i < $n; $i+=2 ) {
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$p[$i] = $this->scale->TranslateX($p[$i]);
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$p[$i+1] = $this->scale->TranslateY($p[$i+1]);
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}
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$this->img->FilledPolygon($p);
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}
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// Draw a bezier curve with defining points in the $aPnts array
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// using $aSteps steps.
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// 0=x0, 1=y0
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// 2=x1, 3=y1
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// 4=x2, 5=y2
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// 6=x3, 7=y3
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function Bezier($p,$aSteps=40) {
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$x0 = $p[0];
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$y0 = $p[1];
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// Calculate coefficients
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$cx = 3*($p[2]-$p[0]);
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$bx = 3*($p[4]-$p[2])-$cx;
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$ax = $p[6]-$p[0]-$cx-$bx;
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$cy = 3*($p[3]-$p[1]);
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$by = 3*($p[5]-$p[3])-$cy;
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$ay = $p[7]-$p[1]-$cy-$by;
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// Step size
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$delta = 1.0/$aSteps;
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$x_old = $x0;
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$y_old = $y0;
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for($t=$delta; $t<=1.0; $t+=$delta) {
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$tt = $t*$t; $ttt=$tt*$t;
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$x = $ax*$ttt + $bx*$tt + $cx*$t + $x0;
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$y = $ay*$ttt + $by*$tt + $cy*$t + $y0;
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$this->Line($x_old,$y_old,$x,$y);
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$x_old = $x;
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$y_old = $y;
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}
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$this->Line($x_old,$y_old,$p[6],$p[7]);
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}
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function Rectangle($x1,$y1,$x2,$y2) {
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list($x1,$y1) = $this->scale->Translate($x1,$y1);
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list($x2,$y2) = $this->scale->Translate($x2,$y2);
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$this->img->Rectangle($x1,$y1,$x2,$y2);
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}
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function FilledRectangle($x1,$y1,$x2,$y2) {
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list($x1,$y1) = $this->scale->Translate($x1,$y1);
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list($x2,$y2) = $this->scale->Translate($x2,$y2);
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$this->img->FilledRectangle($x1,$y1,$x2,$y2);
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}
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function Circle($x1,$y1,$r) {
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list($x1,$y1) = $this->scale->Translate($x1,$y1);
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if( $r >= 0 )
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$r = $this->scale->TranslateX($r);
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else
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$r = -$r;
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$this->img->Circle($x1,$y1,$r);
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}
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function FilledCircle($x1,$y1,$r) {
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list($x1,$y1) = $this->scale->Translate($x1,$y1);
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if( $r >= 0 )
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$r = $this->scale->TranslateX($r);
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else
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$r = -$r;
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$this->img->FilledCircle($x1,$y1,$r);
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}
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function RoundedRectangle($x1,$y1,$x2,$y2,$r=null) {
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list($x1,$y1) = $this->scale->Translate($x1,$y1);
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list($x2,$y2) = $this->scale->Translate($x2,$y2);
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if( $r == null )
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$r = 5;
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elseif( $r >= 0 )
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$r = $this->scale->TranslateX($r);
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else
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$r = -$r;
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$this->img->RoundedRectangle($x1,$y1,$x2,$y2,$r);
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}
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function FilledRoundedRectangle($x1,$y1,$x2,$y2,$r=null) {
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list($x1,$y1) = $this->scale->Translate($x1,$y1);
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list($x2,$y2) = $this->scale->Translate($x2,$y2);
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if( $r == null )
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$r = 5;
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elseif( $r > 0 )
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$r = $this->scale->TranslateX($r);
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else
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$r = -$r;
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$this->img->FilledRoundedRectangle($x1,$y1,$x2,$y2,$r);
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}
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function ShadowRectangle($x1,$y1,$x2,$y2,$fcolor=false,$shadow_width=null,$shadow_color=array(102,102,102)) {
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list($x1,$y1) = $this->scale->Translate($x1,$y1);
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list($x2,$y2) = $this->scale->Translate($x2,$y2);
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if( $shadow_width == null )
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$shadow_width=4;
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else
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$shadow_width=$this->scale->TranslateX($shadow_width);
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$this->img->ShadowRectangle($x1,$y1,$x2,$y2,$fcolor,$shadow_width,$shadow_color);
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}
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function SetTextAlign($halign,$valign="bottom") {
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$this->img->SetTextAlign($halign,$valign="bottom");
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}
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function StrokeText($x1,$y1,$txt,$dir=0,$paragraph_align="left") {
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list($x1,$y1) = $this->scale->Translate($x1,$y1);
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$this->img->StrokeText($x1,$y1,$txt,$dir,$paragraph_align);
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}
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// A rounded rectangle where one of the corner has been moved "into" the
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// rectangle 'iw' width and 'ih' height. Corners:
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// 0=Top left, 1=top right, 2=bottom right, 3=bottom left
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function IndentedRectangle($xt,$yt,$w,$h,$iw=0,$ih=0,$aCorner=3,$aFillColor="",$r=4) {
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list($xt,$yt) = $this->scale->Translate($xt,$yt);
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list($w,$h) = $this->scale->Translate($w,$h);
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list($iw,$ih) = $this->scale->Translate($iw,$ih);
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$xr = $xt + $w - 0;
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$yl = $yt + $h - 0;
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switch( $aCorner ) {
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case 0: // Upper left
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// Bottom line, left & right arc
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$this->img->Line($xt+$r,$yl,$xr-$r,$yl);
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$this->img->Arc($xt+$r,$yl-$r,$r*2,$r*2,90,180);
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$this->img->Arc($xr-$r,$yl-$r,$r*2,$r*2,0,90);
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// Right line, Top right arc
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$this->img->Line($xr,$yt+$r,$xr,$yl-$r);
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$this->img->Arc($xr-$r,$yt+$r,$r*2,$r*2,270,360);
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// Top line, Top left arc
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$this->img->Line($xt+$iw+$r,$yt,$xr-$r,$yt);
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$this->img->Arc($xt+$iw+$r,$yt+$r,$r*2,$r*2,180,270);
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// Left line
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$this->img->Line($xt,$yt+$ih+$r,$xt,$yl-$r);
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// Indent horizontal, Lower left arc
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$this->img->Line($xt+$r,$yt+$ih,$xt+$iw-$r,$yt+$ih);
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$this->img->Arc($xt+$r,$yt+$ih+$r,$r*2,$r*2,180,270);
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// Indent vertical, Indent arc
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$this->img->Line($xt+$iw,$yt+$r,$xt+$iw,$yt+$ih-$r);
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$this->img->Arc($xt+$iw-$r,$yt+$ih-$r,$r*2,$r*2,0,90);
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if( $aFillColor != '' ) {
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$bc = $this->img->current_color_name;
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$this->img->PushColor($aFillColor);
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$this->img->FillToBorder($xr-$r,$yl-$r,$bc);
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$this->img->PopColor();
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}
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break;
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case 1: // Upper right
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// Bottom line, left & right arc
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$this->img->Line($xt+$r,$yl,$xr-$r,$yl);
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$this->img->Arc($xt+$r,$yl-$r,$r*2,$r*2,90,180);
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$this->img->Arc($xr-$r,$yl-$r,$r*2,$r*2,0,90);
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// Left line, Top left arc
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$this->img->Line($xt,$yt+$r,$xt,$yl-$r);
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$this->img->Arc($xt+$r,$yt+$r,$r*2,$r*2,180,270);
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// Top line, Top right arc
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$this->img->Line($xt+$r,$yt,$xr-$iw-$r,$yt);
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$this->img->Arc($xr-$iw-$r,$yt+$r,$r*2,$r*2,270,360);
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// Right line
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$this->img->Line($xr,$yt+$ih+$r,$xr,$yl-$r);
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// Indent horizontal, Lower right arc
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$this->img->Line($xr-$iw+$r,$yt+$ih,$xr-$r,$yt+$ih);
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$this->img->Arc($xr-$r,$yt+$ih+$r,$r*2,$r*2,270,360);
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// Indent vertical, Indent arc
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$this->img->Line($xr-$iw,$yt+$r,$xr-$iw,$yt+$ih-$r);
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$this->img->Arc($xr-$iw+$r,$yt+$ih-$r,$r*2,$r*2,90,180);
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if( $aFillColor != '' ) {
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$bc = $this->img->current_color_name;
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$this->img->PushColor($aFillColor);
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$this->img->FillToBorder($xt+$r,$yl-$r,$bc);
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$this->img->PopColor();
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}
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break;
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case 2: // Lower right
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// Top line, Top left & Top right arc
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$this->img->Line($xt+$r,$yt,$xr-$r,$yt);
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$this->img->Arc($xt+$r,$yt+$r,$r*2,$r*2,180,270);
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$this->img->Arc($xr-$r,$yt+$r,$r*2,$r*2,270,360);
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// Left line, Bottom left arc
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$this->img->Line($xt,$yt+$r,$xt,$yl-$r);
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$this->img->Arc($xt+$r,$yl-$r,$r*2,$r*2,90,180);
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// Bottom line, Bottom right arc
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$this->img->Line($xt+$r,$yl,$xr-$iw-$r,$yl);
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$this->img->Arc($xr-$iw-$r,$yl-$r,$r*2,$r*2,0,90);
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// Right line
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$this->img->Line($xr,$yt+$r,$xr,$yl-$ih-$r);
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// Indent horizontal, Lower right arc
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$this->img->Line($xr-$r,$yl-$ih,$xr-$iw+$r,$yl-$ih);
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$this->img->Arc($xr-$r,$yl-$ih-$r,$r*2,$r*2,0,90);
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321 |
// Indent vertical, Indent arc
|
|
|
322 |
$this->img->Line($xr-$iw,$yl-$r,$xr-$iw,$yl-$ih+$r);
|
|
|
323 |
$this->img->Arc($xr-$iw+$r,$yl-$ih+$r,$r*2,$r*2,180,270);
|
|
|
324 |
|
|
|
325 |
if( $aFillColor != '' ) {
|
|
|
326 |
$bc = $this->img->current_color_name;
|
|
|
327 |
$this->img->PushColor($aFillColor);
|
|
|
328 |
$this->img->FillToBorder($xt+$r,$yt+$r,$bc);
|
|
|
329 |
$this->img->PopColor();
|
|
|
330 |
}
|
|
|
331 |
|
|
|
332 |
break;
|
|
|
333 |
|
|
|
334 |
case 3: // Lower left
|
|
|
335 |
// Top line, Top left & Top right arc
|
|
|
336 |
$this->img->Line($xt+$r,$yt,$xr-$r,$yt);
|
|
|
337 |
$this->img->Arc($xt+$r,$yt+$r,$r*2,$r*2,180,270);
|
|
|
338 |
$this->img->Arc($xr-$r,$yt+$r,$r*2,$r*2,270,360);
|
|
|
339 |
|
|
|
340 |
// Right line, Bottom right arc
|
|
|
341 |
$this->img->Line($xr,$yt+$r,$xr,$yl-$r);
|
|
|
342 |
$this->img->Arc($xr-$r,$yl-$r,$r*2,$r*2,0,90);
|
|
|
343 |
|
|
|
344 |
// Bottom line, Bottom left arc
|
|
|
345 |
$this->img->Line($xt+$iw+$r,$yl,$xr-$r,$yl);
|
|
|
346 |
$this->img->Arc($xt+$iw+$r,$yl-$r,$r*2,$r*2,90,180);
|
|
|
347 |
|
|
|
348 |
// Left line
|
|
|
349 |
$this->img->Line($xt,$yt+$r,$xt,$yl-$ih-$r);
|
|
|
350 |
|
|
|
351 |
// Indent horizontal, Lower left arc
|
|
|
352 |
$this->img->Line($xt+$r,$yl-$ih,$xt+$iw-$r,$yl-$ih);
|
|
|
353 |
$this->img->Arc($xt+$r,$yl-$ih-$r,$r*2,$r*2,90,180);
|
|
|
354 |
|
|
|
355 |
// Indent vertical, Indent arc
|
|
|
356 |
$this->img->Line($xt+$iw,$yl-$ih+$r,$xt+$iw,$yl-$r);
|
|
|
357 |
$this->img->Arc($xt+$iw-$r,$yl-$ih+$r,$r*2,$r*2,270,360);
|
|
|
358 |
|
|
|
359 |
if( $aFillColor != '' ) {
|
|
|
360 |
$bc = $this->img->current_color_name;
|
|
|
361 |
$this->img->PushColor($aFillColor);
|
|
|
362 |
$this->img->FillToBorder($xr-$r,$yt+$r,$bc);
|
|
|
363 |
$this->img->PopColor();
|
|
|
364 |
}
|
|
|
365 |
|
|
|
366 |
break;
|
|
|
367 |
}
|
|
|
368 |
}
|
|
|
369 |
}
|
|
|
370 |
|
|
|
371 |
|
|
|
372 |
//===================================================
|
|
|
373 |
// CLASS RectangleText
|
|
|
374 |
// Description: Draws a text paragraph inside a
|
|
|
375 |
// rounded, possible filled, rectangle.
|
|
|
376 |
//===================================================
|
|
|
377 |
class CanvasRectangleText {
|
|
|
378 |
var $ix,$iy,$iw,$ih,$ir=4;
|
|
|
379 |
var $iTxt,$iColor='black',$iFillColor='',$iFontColor='black';
|
|
|
380 |
var $iParaAlign='center';
|
|
|
381 |
var $iAutoBoxMargin=5;
|
|
|
382 |
var $iShadowWidth=3,$iShadowColor='';
|
|
|
383 |
|
|
|
384 |
function CanvasRectangleText($aTxt='',$xl=0,$yt=0,$w=0,$h=0) {
|
|
|
385 |
$this->iTxt = new Text($aTxt);
|
|
|
386 |
$this->ix = $xl;
|
|
|
387 |
$this->iy = $yt;
|
|
|
388 |
$this->iw = $w;
|
|
|
389 |
$this->ih = $h;
|
|
|
390 |
}
|
|
|
391 |
|
|
|
392 |
function SetShadow($aColor='gray',$aWidth=3) {
|
|
|
393 |
$this->iShadowColor = $aColor;
|
|
|
394 |
$this->iShadowWidth = $aWidth;
|
|
|
395 |
}
|
|
|
396 |
|
|
|
397 |
function SetFont($FontFam,$aFontStyle,$aFontSize=12) {
|
|
|
398 |
$this->iTxt->SetFont($FontFam,$aFontStyle,$aFontSize);
|
|
|
399 |
}
|
|
|
400 |
|
|
|
401 |
function SetTxt($aTxt) {
|
|
|
402 |
$this->iTxt->Set($aTxt);
|
|
|
403 |
}
|
|
|
404 |
|
|
|
405 |
function ParagraphAlign($aParaAlign) {
|
|
|
406 |
$this->iParaAlign = $aParaAlign;
|
|
|
407 |
}
|
|
|
408 |
|
|
|
409 |
function SetFillColor($aFillColor) {
|
|
|
410 |
$this->iFillColor = $aFillColor;
|
|
|
411 |
}
|
|
|
412 |
|
|
|
413 |
function SetAutoMargin($aMargin) {
|
|
|
414 |
$this->iAutoBoxMargin=$aMargin;
|
|
|
415 |
}
|
|
|
416 |
|
|
|
417 |
function SetColor($aColor) {
|
|
|
418 |
$this->iColor = $aColor;
|
|
|
419 |
}
|
|
|
420 |
|
|
|
421 |
function SetFontColor($aColor) {
|
|
|
422 |
$this->iFontColor = $aColor;
|
|
|
423 |
}
|
|
|
424 |
|
|
|
425 |
function SetPos($xl=0,$yt=0,$w=0,$h=0) {
|
|
|
426 |
$this->ix = $xl;
|
|
|
427 |
$this->iy = $yt;
|
|
|
428 |
$this->iw = $w;
|
|
|
429 |
$this->ih = $h;
|
|
|
430 |
}
|
|
|
431 |
|
|
|
432 |
function Pos($xl=0,$yt=0,$w=0,$h=0) {
|
|
|
433 |
$this->ix = $xl;
|
|
|
434 |
$this->iy = $yt;
|
|
|
435 |
$this->iw = $w;
|
|
|
436 |
$this->ih = $h;
|
|
|
437 |
}
|
|
|
438 |
|
|
|
439 |
function Set($aTxt,$xl,$yt,$w=0,$h=0) {
|
|
|
440 |
$this->iTxt->Set($aTxt);
|
|
|
441 |
$this->ix = $xl;
|
|
|
442 |
$this->iy = $yt;
|
|
|
443 |
$this->iw = $w;
|
|
|
444 |
$this->ih = $h;
|
|
|
445 |
}
|
|
|
446 |
|
|
|
447 |
function SetCornerRadius($aRad=5) {
|
|
|
448 |
$this->ir = $aRad;
|
|
|
449 |
}
|
|
|
450 |
|
|
|
451 |
function Stroke($aImg,$scale) {
|
|
|
452 |
|
|
|
453 |
// If coordinates are specifed as negative this means we should
|
|
|
454 |
// treat them as abolsute (pixels) coordinates
|
|
|
455 |
if( $this->ix > 0 ) {
|
|
|
456 |
$this->ix = $scale->TranslateX($this->ix) ;
|
|
|
457 |
}
|
|
|
458 |
else {
|
|
|
459 |
$this->ix = -$this->ix;
|
|
|
460 |
}
|
|
|
461 |
|
|
|
462 |
if( $this->iy > 0 ) {
|
|
|
463 |
$this->iy = $scale->TranslateY($this->iy) ;
|
|
|
464 |
}
|
|
|
465 |
else {
|
|
|
466 |
$this->iy = -$this->iy;
|
|
|
467 |
}
|
|
|
468 |
|
|
|
469 |
list($this->iw,$this->ih) = $scale->Translate($this->iw,$this->ih) ;
|
|
|
470 |
|
|
|
471 |
if( $this->iw == 0 )
|
|
|
472 |
$this->iw = round($this->iTxt->GetWidth($aImg) + $this->iAutoBoxMargin);
|
|
|
473 |
if( $this->ih == 0 ) {
|
|
|
474 |
$this->ih = round($this->iTxt->GetTextHeight($aImg) + $this->iAutoBoxMargin);
|
|
|
475 |
}
|
|
|
476 |
|
|
|
477 |
if( $this->iShadowColor != '' ) {
|
|
|
478 |
$aImg->PushColor($this->iShadowColor);
|
|
|
479 |
$aImg->FilledRoundedRectangle($this->ix+$this->iShadowWidth,
|
|
|
480 |
$this->iy+$this->iShadowWidth,
|
|
|
481 |
$this->ix+$this->iw-1+$this->iShadowWidth,
|
|
|
482 |
$this->iy+$this->ih-1+$this->iShadowWidth,
|
|
|
483 |
$this->ir);
|
|
|
484 |
$aImg->PopColor();
|
|
|
485 |
}
|
|
|
486 |
|
|
|
487 |
if( $this->iFillColor != '' ) {
|
|
|
488 |
$aImg->PushColor($this->iFillColor);
|
|
|
489 |
$aImg->FilledRoundedRectangle($this->ix,$this->iy,
|
|
|
490 |
$this->ix+$this->iw-1,
|
|
|
491 |
$this->iy+$this->ih-1,
|
|
|
492 |
$this->ir);
|
|
|
493 |
$aImg->PopColor();
|
|
|
494 |
}
|
|
|
495 |
|
|
|
496 |
if( $this->iColor != '' ) {
|
|
|
497 |
$aImg->PushColor($this->iColor);
|
|
|
498 |
$aImg->RoundedRectangle($this->ix,$this->iy,
|
|
|
499 |
$this->ix+$this->iw-1,
|
|
|
500 |
$this->iy+$this->ih-1,
|
|
|
501 |
$this->ir);
|
|
|
502 |
$aImg->PopColor();
|
|
|
503 |
}
|
|
|
504 |
|
|
|
505 |
$this->iTxt->Align('center','center');
|
|
|
506 |
$this->iTxt->ParagraphAlign($this->iParaAlign);
|
|
|
507 |
$this->iTxt->SetColor($this->iFontColor);
|
|
|
508 |
$this->iTxt->Stroke($aImg, $this->ix+$this->iw/2, $this->iy+$this->ih/2);
|
|
|
509 |
|
|
|
510 |
return array($this->iw, $this->ih);
|
|
|
511 |
|
|
|
512 |
}
|
|
|
513 |
|
|
|
514 |
}
|
|
|
515 |
|
|
|
516 |
|
|
|
517 |
?>
|