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523 lines
16 KiB
523 lines
16 KiB
<?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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private $g; |
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private $w,$h; |
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private $ixmin=0,$ixmax=10,$iymin=0,$iymax=10; |
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function __construct($graph,$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 = $ymax; |
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} |
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function Get() { |
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return array($this->ixmin,$this->ixmax,$this->iymin,$this->iymax); |
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} |
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function Translate($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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private $img,$scale; |
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function __construct($aGraph,$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 SetLineWeight($aWeight) { |
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$this->img->SetLineWeight($aWeight); |
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} |
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function Polygon($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,$r*2,0,90); |
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// Indent vertical, Indent arc |
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$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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private $ix,$iy,$iw,$ih,$ir=4; |
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private $iTxt,$iColor='black',$iFillColor='',$iFontColor='black'; |
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private $iParaAlign='center'; |
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private $iAutoBoxMargin=5; |
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private $iShadowWidth=3,$iShadowColor=''; |
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function __construct($aTxt='',$xl=0,$yt=0,$w=0,$h=0) { |
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$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 = $h; |
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} |
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function SetShadow($aColor='gray',$aWidth=3) { |
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$this->iShadowColor = $aColor; |
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$this->iShadowWidth = $aWidth; |
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} |
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function SetFont($FontFam,$aFontStyle,$aFontSize=12) { |
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$this->iTxt->SetFont($FontFam,$aFontStyle,$aFontSize); |
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} |
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function SetTxt($aTxt) { |
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$this->iTxt->Set($aTxt); |
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} |
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function ParagraphAlign($aParaAlign) { |
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$this->iParaAlign = $aParaAlign; |
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} |
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function SetFillColor($aFillColor) { |
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$this->iFillColor = $aFillColor; |
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} |
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function SetAutoMargin($aMargin) { |
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$this->iAutoBoxMargin=$aMargin; |
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} |
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function SetColor($aColor) { |
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$this->iColor = $aColor; |
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} |
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function SetFontColor($aColor) { |
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$this->iFontColor = $aColor; |
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} |
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function SetPos($xl=0,$yt=0,$w=0,$h=0) { |
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$this->ix = $xl; |
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$this->iy = $yt; |
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$this->iw = $w; |
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$this->ih = $h; |
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} |
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function Pos($xl=0,$yt=0,$w=0,$h=0) { |
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$this->ix = $xl; |
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$this->iy = $yt; |
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$this->iw = $w; |
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$this->ih = $h; |
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} |
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function Set($aTxt,$xl,$yt,$w=0,$h=0) { |
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$this->iTxt->Set($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 = $h; |
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} |
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function SetCornerRadius($aRad=5) { |
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$this->ir = $aRad; |
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} |
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function Stroke($aImg,$scale) { |
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// If coordinates are specifed as negative this means we should |
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// treat them as abolsute (pixels) coordinates |
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if( $this->ix > 0 ) { |
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$this->ix = $scale->TranslateX($this->ix) ; |
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} |
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else { |
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$this->ix = -$this->ix; |
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} |
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if( $this->iy > 0 ) { |
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$this->iy = $scale->TranslateY($this->iy) ; |
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} |
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else { |
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$this->iy = -$this->iy; |
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} |
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list($this->iw,$this->ih) = $scale->Translate($this->iw,$this->ih) ; |
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if( $this->iw == 0 ) |
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$this->iw = round($this->iTxt->GetWidth($aImg) + $this->iAutoBoxMargin); |
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if( $this->ih == 0 ) { |
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$this->ih = round($this->iTxt->GetTextHeight($aImg) + $this->iAutoBoxMargin); |
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} |
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if( $this->iShadowColor != '' ) { |
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$aImg->PushColor($this->iShadowColor); |
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$aImg->FilledRoundedRectangle($this->ix+$this->iShadowWidth, |
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$this->iy+$this->iShadowWidth, |
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$this->ix+$this->iw-1+$this->iShadowWidth, |
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$this->iy+$this->ih-1+$this->iShadowWidth, |
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$this->ir); |
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$aImg->PopColor(); |
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} |
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if( $this->iFillColor != '' ) { |
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$aImg->PushColor($this->iFillColor); |
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$aImg->FilledRoundedRectangle($this->ix,$this->iy, |
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$this->ix+$this->iw-1, |
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$this->iy+$this->ih-1, |
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$this->ir); |
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$aImg->PopColor(); |
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} |
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if( $this->iColor != '' ) { |
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$aImg->PushColor($this->iColor); |
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$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); |
|
|
|
} |
|
|
|
} |
|
|
|
|
|
?>
|
|
|