583 lines
18 KiB
PHP
583 lines
18 KiB
PHP
<?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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// Ver: $Id: jpgraph_canvtools.php 1857 2009-09-28 14:38:14Z ljp $
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//
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// Copyright (c) Asial Corporation. All rights reserved.
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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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{
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private $g;
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private $w;
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private $h;
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private $ixmin=0;
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private $ixmax=10;
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private $iymin=0;
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private $iymax=10;
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public function __construct($graph, $xmin=0, $xmax=10, $ymin=0, $ymax=10)
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{
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$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 = $ymax;
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}
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public function Set($xmin=0, $xmax=10, $ymin=0, $ymax=10)
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{
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$this->ixmin = $xmin;
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$this->ixmax = $xmax;
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$this->iymin = $ymin;
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$this->iymax = $ymax;
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}
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public function Get()
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{
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return array($this->ixmin,$this->ixmax,$this->iymin,$this->iymax);
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}
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public function Translate($x, $y)
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{
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$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,$yp);
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}
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public function TranslateX($x)
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{
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$xp = round(($x-$this->ixmin)/($this->ixmax - $this->ixmin) * $this->w);
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return $xp;
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}
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public function TranslateY($y)
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{
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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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{
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private $img;
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private $scale;
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public function __construct($aGraph, $scale)
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{
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$this->img = $aGraph->img;
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$this->img->SetColor('black');
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$this->scale = $scale;
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}
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public function SetColor($aColor)
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{
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$this->img->SetColor($aColor);
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}
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public function Line($x1, $y1, $x2, $y2)
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{
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list($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, $y2);
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}
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public function SetLineWeight($aWeight)
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{
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$this->img->SetLineWeight($aWeight);
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}
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public function Polygon($p, $aClosed=false)
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{
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$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, $aClosed);
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}
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public function FilledPolygon($p)
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{
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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 $aSteps steps.
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// 0=x0, 1=y0
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// 2=x1, 3=y1
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// 4=x2, 5=y2
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// 6=x3, 7=y3
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public function Bezier($p, $aSteps=40)
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{
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$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;
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$ttt=$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], $p[7]);
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}
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public function Rectangle($x1, $y1, $x2, $y2)
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{
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list($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, $y2);
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}
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public function FilledRectangle($x1, $y1, $x2, $y2)
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{
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list($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, $y2);
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}
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public function Circle($x1, $y1, $r)
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{
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list($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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}
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$this->img->Circle($x1, $y1, $r);
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}
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public function FilledCircle($x1, $y1, $r)
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{
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list($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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}
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$this->img->FilledCircle($x1, $y1, $r);
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}
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public function RoundedRectangle($x1, $y1, $x2, $y2, $r=null)
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{
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list($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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}
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$this->img->RoundedRectangle($x1, $y1, $x2, $y2, $r);
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}
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public function FilledRoundedRectangle($x1, $y1, $x2, $y2, $r=null)
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{
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list($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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}
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$this->img->FilledRoundedRectangle($x1, $y1, $x2, $y2, $r);
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}
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public function ShadowRectangle($x1, $y1, $x2, $y2, $fcolor=false, $shadow_width=null, $shadow_color=array(102,102,102))
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{
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list($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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}
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$this->img->ShadowRectangle($x1, $y1, $x2, $y2, $fcolor, $shadow_width, $shadow_color);
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}
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public function SetTextAlign($halign, $valign="bottom")
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{
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$this->img->SetTextAlign($halign, $valign="bottom");
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}
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public function StrokeText($x1, $y1, $txt, $dir=0, $paragraph_align="left")
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{
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list($x1, $y1) = $this->scale->Translate($x1, $y1);
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$this->img->StrokeText($x1, $y1, $txt, $dir, $paragraph_align);
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}
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// A rounded rectangle where one of the corner has been moved "into" the
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// rectangle 'iw' width and 'ih' height. Corners:
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// 0=Top left, 1=top right, 2=bottom right, 3=bottom left
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public function IndentedRectangle($xt, $yt, $w, $h, $iw=0, $ih=0, $aCorner=3, $aFillColor="", $r=4)
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{
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list($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, $r*2, 0, 90);
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// Indent vertical, Indent arc
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$this->img->Line($xr-$iw, $yl-$r, $xr-$iw, $yl-$ih+$r);
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$this->img->Arc($xr-$iw+$r, $yl-$ih+$r, $r*2, $r*2, 180, 270);
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if ($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, $yt+$r, $bc);
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$this->img->PopColor();
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}
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break;
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case 3: // Lower left
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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, $r*2, 270, 360);
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// Right line, Bottom right arc
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$this->img->Line($xr, $yt+$r, $xr, $yl-$r);
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$this->img->Arc($xr-$r, $yl-$r, $r*2, $r*2, 0, 90);
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// Bottom line, Bottom left arc
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$this->img->Line($xt+$iw+$r, $yl, $xr-$r, $yl);
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$this->img->Arc($xt+$iw+$r, $yl-$r, $r*2, $r*2, 90, 180);
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// Left line
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$this->img->Line($xt, $yt+$r, $xt, $yl-$ih-$r);
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// Indent horizontal, Lower left arc
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$this->img->Line($xt+$r, $yl-$ih, $xt+$iw-$r, $yl-$ih);
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$this->img->Arc($xt+$r, $yl-$ih-$r, $r*2, $r*2, 90, 180);
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// Indent vertical, Indent arc
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$this->img->Line($xt+$iw, $yl-$ih+$r, $xt+$iw, $yl-$r);
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$this->img->Arc($xt+$iw-$r, $yl-$ih+$r, $r*2, $r*2, 270, 360);
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if ($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, $yt+$r, $bc);
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$this->img->PopColor();
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}
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break;
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}
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}
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}
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//===================================================
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// CLASS RectangleText
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// Description: Draws a text paragraph inside a
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// rounded, possible filled, rectangle.
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//===================================================
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class CanvasRectangleText
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{
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private $ix;
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private $iy;
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private $iw;
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private $ih;
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private $ir=4;
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private $iTxt;
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private $iColor='black';
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private $iFillColor='';
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private $iFontColor='black';
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private $iParaAlign='center';
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private $iAutoBoxMargin=5;
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private $iShadowWidth=3;
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private $iShadowColor='';
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public function __construct($aTxt='', $xl=0, $yt=0, $w=0, $h=0)
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{
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$this->iTxt = new Text($aTxt);
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$this->ix = $xl;
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$this->iy = $yt;
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$this->iw = $w;
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$this->ih = $h;
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}
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public function SetShadow($aColor='gray', $aWidth=3)
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{
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$this->iShadowColor = $aColor;
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$this->iShadowWidth = $aWidth;
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}
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public function SetFont($FontFam, $aFontStyle, $aFontSize=12)
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{
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$this->iTxt->SetFont($FontFam, $aFontStyle, $aFontSize);
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}
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public function SetTxt($aTxt)
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{
|
|
$this->iTxt->Set($aTxt);
|
|
}
|
|
|
|
public function ParagraphAlign($aParaAlign)
|
|
{
|
|
$this->iParaAlign = $aParaAlign;
|
|
}
|
|
|
|
public function SetFillColor($aFillColor)
|
|
{
|
|
$this->iFillColor = $aFillColor;
|
|
}
|
|
|
|
public function SetAutoMargin($aMargin)
|
|
{
|
|
$this->iAutoBoxMargin=$aMargin;
|
|
}
|
|
|
|
public function SetColor($aColor)
|
|
{
|
|
$this->iColor = $aColor;
|
|
}
|
|
|
|
public function SetFontColor($aColor)
|
|
{
|
|
$this->iFontColor = $aColor;
|
|
}
|
|
|
|
public function SetPos($xl=0, $yt=0, $w=0, $h=0)
|
|
{
|
|
$this->ix = $xl;
|
|
$this->iy = $yt;
|
|
$this->iw = $w;
|
|
$this->ih = $h;
|
|
}
|
|
|
|
public function Pos($xl=0, $yt=0, $w=0, $h=0)
|
|
{
|
|
$this->ix = $xl;
|
|
$this->iy = $yt;
|
|
$this->iw = $w;
|
|
$this->ih = $h;
|
|
}
|
|
|
|
public function Set($aTxt, $xl, $yt, $w=0, $h=0)
|
|
{
|
|
$this->iTxt->Set($aTxt);
|
|
$this->ix = $xl;
|
|
$this->iy = $yt;
|
|
$this->iw = $w;
|
|
$this->ih = $h;
|
|
}
|
|
|
|
public function SetCornerRadius($aRad=5)
|
|
{
|
|
$this->ir = $aRad;
|
|
}
|
|
|
|
public function Stroke($aImg, $scale)
|
|
{
|
|
|
|
// If coordinates are specifed as negative this means we should
|
|
// treat them as abolsute (pixels) coordinates
|
|
if ($this->ix > 0) {
|
|
$this->ix = $scale->TranslateX($this->ix) ;
|
|
} else {
|
|
$this->ix = -$this->ix;
|
|
}
|
|
|
|
if ($this->iy > 0) {
|
|
$this->iy = $scale->TranslateY($this->iy) ;
|
|
} else {
|
|
$this->iy = -$this->iy;
|
|
}
|
|
|
|
list($this->iw, $this->ih) = $scale->Translate($this->iw, $this->ih) ;
|
|
|
|
if ($this->iw == 0) {
|
|
$this->iw = round($this->iTxt->GetWidth($aImg) + $this->iAutoBoxMargin);
|
|
}
|
|
if ($this->ih == 0) {
|
|
$this->ih = round($this->iTxt->GetTextHeight($aImg) + $this->iAutoBoxMargin);
|
|
}
|
|
|
|
if ($this->iShadowColor != '') {
|
|
$aImg->PushColor($this->iShadowColor);
|
|
$aImg->FilledRoundedRectangle(
|
|
$this->ix+$this->iShadowWidth,
|
|
$this->iy+$this->iShadowWidth,
|
|
$this->ix+$this->iw-1+$this->iShadowWidth,
|
|
$this->iy+$this->ih-1+$this->iShadowWidth,
|
|
$this->ir
|
|
);
|
|
$aImg->PopColor();
|
|
}
|
|
|
|
if ($this->iFillColor != '') {
|
|
$aImg->PushColor($this->iFillColor);
|
|
$aImg->FilledRoundedRectangle(
|
|
$this->ix,
|
|
$this->iy,
|
|
$this->ix+$this->iw-1,
|
|
$this->iy+$this->ih-1,
|
|
$this->ir
|
|
);
|
|
$aImg->PopColor();
|
|
}
|
|
|
|
if ($this->iColor != '') {
|
|
$aImg->PushColor($this->iColor);
|
|
$aImg->RoundedRectangle(
|
|
$this->ix,
|
|
$this->iy,
|
|
$this->ix+$this->iw-1,
|
|
$this->iy+$this->ih-1,
|
|
$this->ir
|
|
);
|
|
$aImg->PopColor();
|
|
}
|
|
|
|
$this->iTxt->Align('center', 'center');
|
|
$this->iTxt->ParagraphAlign($this->iParaAlign);
|
|
$this->iTxt->SetColor($this->iFontColor);
|
|
$this->iTxt->Stroke($aImg, $this->ix+$this->iw/2, $this->iy+$this->ih/2);
|
|
|
|
return array($this->iw, $this->ih);
|
|
}
|
|
}
|