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-<?php
-/*=======================================================================
- // File: JPGRAPH_CANVTOOLS.PHP
- // Description: Some utilities for text and shape drawing on a canvas
- // Created: 2002-08-23
- // Ver: $Id: jpgraph_canvtools.php 1857 2009-09-28 14:38:14Z ljp $
- //
- // Copyright (c) Asial Corporation. All rights reserved.
- //========================================================================
- */
-
-define('CORNER_TOPLEFT',0);
-define('CORNER_TOPRIGHT',1);
-define('CORNER_BOTTOMRIGHT',2);
-define('CORNER_BOTTOMLEFT',3);
-
-
-//===================================================
-// CLASS CanvasScale
-// Description: Define a scale for canvas so we
-// can abstract away with absolute pixels
-//===================================================
-
-class CanvasScale {
- private $g;
- private $w,$h;
- private $ixmin=0,$ixmax=10,$iymin=0,$iymax=10;
-
- function __construct($graph,$xmin=0,$xmax=10,$ymin=0,$ymax=10) {
- $this->g = $graph;
- $this->w = $graph->img->width;
- $this->h = $graph->img->height;
- $this->ixmin = $xmin;
- $this->ixmax = $xmax;
- $this->iymin = $ymin;
- $this->iymax = $ymax;
- }
-
- function Set($xmin=0,$xmax=10,$ymin=0,$ymax=10) {
- $this->ixmin = $xmin;
- $this->ixmax = $xmax;
- $this->iymin = $ymin;
- $this->iymax = $ymax;
- }
-
- function Get() {
- return array($this->ixmin,$this->ixmax,$this->iymin,$this->iymax);
- }
-
- function Translate($x,$y) {
- $xp = round(($x-$this->ixmin)/($this->ixmax - $this->ixmin) * $this->w);
- $yp = round(($y-$this->iymin)/($this->iymax - $this->iymin) * $this->h);
- return array($xp,$yp);
- }
-
- function TranslateX($x) {
- $xp = round(($x-$this->ixmin)/($this->ixmax - $this->ixmin) * $this->w);
- return $xp;
- }
-
- function TranslateY($y) {
- $yp = round(($y-$this->iymin)/($this->iymax - $this->iymin) * $this->h);
- return $yp;
- }
-
-}
-
-
-//===================================================
-// CLASS Shape
-// Description: Methods to draw shapes on canvas
-//===================================================
-class Shape {
- private $img,$scale;
-
- function __construct($aGraph,$scale) {
- $this->img = $aGraph->img;
- $this->img->SetColor('black');
- $this->scale = $scale;
- }
-
- function SetColor($aColor) {
- $this->img->SetColor($aColor);
- }
-
- function Line($x1,$y1,$x2,$y2) {
- list($x1,$y1) = $this->scale->Translate($x1,$y1);
- list($x2,$y2) = $this->scale->Translate($x2,$y2);
- $this->img->Line($x1,$y1,$x2,$y2);
- }
-
- function SetLineWeight($aWeight) {
- $this->img->SetLineWeight($aWeight);
- }
-
- function Polygon($p,$aClosed=false) {
- $n=count($p);
- for($i=0; $i < $n; $i+=2 ) {
- $p[$i] = $this->scale->TranslateX($p[$i]);
- $p[$i+1] = $this->scale->TranslateY($p[$i+1]);
- }
- $this->img->Polygon($p,$aClosed);
- }
-
- function FilledPolygon($p) {
- $n=count($p);
- for($i=0; $i < $n; $i+=2 ) {
- $p[$i] = $this->scale->TranslateX($p[$i]);
- $p[$i+1] = $this->scale->TranslateY($p[$i+1]);
- }
- $this->img->FilledPolygon($p);
- }
-
-
- // Draw a bezier curve with defining points in the $aPnts array
- // using $aSteps steps.
- // 0=x0, 1=y0
- // 2=x1, 3=y1
- // 4=x2, 5=y2
- // 6=x3, 7=y3
- function Bezier($p,$aSteps=40) {
- $x0 = $p[0];
- $y0 = $p[1];
- // Calculate coefficients
- $cx = 3*($p[2]-$p[0]);
- $bx = 3*($p[4]-$p[2])-$cx;
- $ax = $p[6]-$p[0]-$cx-$bx;
- $cy = 3*($p[3]-$p[1]);
- $by = 3*($p[5]-$p[3])-$cy;
- $ay = $p[7]-$p[1]-$cy-$by;
-
- // Step size
- $delta = 1.0/$aSteps;
-
- $x_old = $x0;
- $y_old = $y0;
- for($t=$delta; $t<=1.0; $t+=$delta) {
- $tt = $t*$t; $ttt=$tt*$t;
- $x = $ax*$ttt + $bx*$tt + $cx*$t + $x0;
- $y = $ay*$ttt + $by*$tt + $cy*$t + $y0;
- $this->Line($x_old,$y_old,$x,$y);
- $x_old = $x;
- $y_old = $y;
- }
- $this->Line($x_old,$y_old,$p[6],$p[7]);
- }
-
- function Rectangle($x1,$y1,$x2,$y2) {
- list($x1,$y1) = $this->scale->Translate($x1,$y1);
- list($x2,$y2) = $this->scale->Translate($x2,$y2);
- $this->img->Rectangle($x1,$y1,$x2,$y2);
- }
-
- function FilledRectangle($x1,$y1,$x2,$y2) {
- list($x1,$y1) = $this->scale->Translate($x1,$y1);
- list($x2,$y2) = $this->scale->Translate($x2,$y2);
- $this->img->FilledRectangle($x1,$y1,$x2,$y2);
- }
-
- function Circle($x1,$y1,$r) {
- list($x1,$y1) = $this->scale->Translate($x1,$y1);
- if( $r >= 0 )
- $r = $this->scale->TranslateX($r);
- else
- $r = -$r;
- $this->img->Circle($x1,$y1,$r);
- }
-
- function FilledCircle($x1,$y1,$r) {
- list($x1,$y1) = $this->scale->Translate($x1,$y1);
- if( $r >= 0 )
- $r = $this->scale->TranslateX($r);
- else
- $r = -$r;
- $this->img->FilledCircle($x1,$y1,$r);
- }
-
- function RoundedRectangle($x1,$y1,$x2,$y2,$r=null) {
- list($x1,$y1) = $this->scale->Translate($x1,$y1);
- list($x2,$y2) = $this->scale->Translate($x2,$y2);
-
- if( $r == null )
- $r = 5;
- elseif( $r >= 0 )
- $r = $this->scale->TranslateX($r);
- else
- $r = -$r;
- $this->img->RoundedRectangle($x1,$y1,$x2,$y2,$r);
- }
-
- function FilledRoundedRectangle($x1,$y1,$x2,$y2,$r=null) {
- list($x1,$y1) = $this->scale->Translate($x1,$y1);
- list($x2,$y2) = $this->scale->Translate($x2,$y2);
-
- if( $r == null )
- $r = 5;
- elseif( $r > 0 )
- $r = $this->scale->TranslateX($r);
- else
- $r = -$r;
- $this->img->FilledRoundedRectangle($x1,$y1,$x2,$y2,$r);
- }
-
- function ShadowRectangle($x1,$y1,$x2,$y2,$fcolor=false,$shadow_width=null,$shadow_color=array(102,102,102)) {
- list($x1,$y1) = $this->scale->Translate($x1,$y1);
- list($x2,$y2) = $this->scale->Translate($x2,$y2);
- if( $shadow_width == null )
- $shadow_width=4;
- else
- $shadow_width=$this->scale->TranslateX($shadow_width);
- $this->img->ShadowRectangle($x1,$y1,$x2,$y2,$fcolor,$shadow_width,$shadow_color);
- }
-
- function SetTextAlign($halign,$valign="bottom") {
- $this->img->SetTextAlign($halign,$valign="bottom");
- }
-
- function StrokeText($x1,$y1,$txt,$dir=0,$paragraph_align="left") {
- list($x1,$y1) = $this->scale->Translate($x1,$y1);
- $this->img->StrokeText($x1,$y1,$txt,$dir,$paragraph_align);
- }
-
- // A rounded rectangle where one of the corner has been moved "into" the
- // rectangle 'iw' width and 'ih' height. Corners:
- // 0=Top left, 1=top right, 2=bottom right, 3=bottom left
- function IndentedRectangle($xt,$yt,$w,$h,$iw=0,$ih=0,$aCorner=3,$aFillColor="",$r=4) {
-
- list($xt,$yt) = $this->scale->Translate($xt,$yt);
- list($w,$h) = $this->scale->Translate($w,$h);
- list($iw,$ih) = $this->scale->Translate($iw,$ih);
-
- $xr = $xt + $w - 0;
- $yl = $yt + $h - 0;
-
- switch( $aCorner ) {
- case 0: // Upper left
-
- // Bottom line, left & right arc
- $this->img->Line($xt+$r,$yl,$xr-$r,$yl);
- $this->img->Arc($xt+$r,$yl-$r,$r*2,$r*2,90,180);
- $this->img->Arc($xr-$r,$yl-$r,$r*2,$r*2,0,90);
-
- // Right line, Top right arc
- $this->img->Line($xr,$yt+$r,$xr,$yl-$r);
- $this->img->Arc($xr-$r,$yt+$r,$r*2,$r*2,270,360);
-
- // Top line, Top left arc
- $this->img->Line($xt+$iw+$r,$yt,$xr-$r,$yt);
- $this->img->Arc($xt+$iw+$r,$yt+$r,$r*2,$r*2,180,270);
-
- // Left line
- $this->img->Line($xt,$yt+$ih+$r,$xt,$yl-$r);
-
- // Indent horizontal, Lower left arc
- $this->img->Line($xt+$r,$yt+$ih,$xt+$iw-$r,$yt+$ih);
- $this->img->Arc($xt+$r,$yt+$ih+$r,$r*2,$r*2,180,270);
-
- // Indent vertical, Indent arc
- $this->img->Line($xt+$iw,$yt+$r,$xt+$iw,$yt+$ih-$r);
- $this->img->Arc($xt+$iw-$r,$yt+$ih-$r,$r*2,$r*2,0,90);
-
- if( $aFillColor != '' ) {
- $bc = $this->img->current_color_name;
- $this->img->PushColor($aFillColor);
- $this->img->FillToBorder($xr-$r,$yl-$r,$bc);
- $this->img->PopColor();
- }
-
- break;
-
- case 1: // Upper right
-
- // Bottom line, left & right arc
- $this->img->Line($xt+$r,$yl,$xr-$r,$yl);
- $this->img->Arc($xt+$r,$yl-$r,$r*2,$r*2,90,180);
- $this->img->Arc($xr-$r,$yl-$r,$r*2,$r*2,0,90);
-
- // Left line, Top left arc
- $this->img->Line($xt,$yt+$r,$xt,$yl-$r);
- $this->img->Arc($xt+$r,$yt+$r,$r*2,$r*2,180,270);
-
- // Top line, Top right arc
- $this->img->Line($xt+$r,$yt,$xr-$iw-$r,$yt);
- $this->img->Arc($xr-$iw-$r,$yt+$r,$r*2,$r*2,270,360);
-
- // Right line
- $this->img->Line($xr,$yt+$ih+$r,$xr,$yl-$r);
-
- // Indent horizontal, Lower right arc
- $this->img->Line($xr-$iw+$r,$yt+$ih,$xr-$r,$yt+$ih);
- $this->img->Arc($xr-$r,$yt+$ih+$r,$r*2,$r*2,270,360);
-
- // Indent vertical, Indent arc
- $this->img->Line($xr-$iw,$yt+$r,$xr-$iw,$yt+$ih-$r);
- $this->img->Arc($xr-$iw+$r,$yt+$ih-$r,$r*2,$r*2,90,180);
-
- if( $aFillColor != '' ) {
- $bc = $this->img->current_color_name;
- $this->img->PushColor($aFillColor);
- $this->img->FillToBorder($xt+$r,$yl-$r,$bc);
- $this->img->PopColor();
- }
-
- break;
-
- case 2: // Lower right
- // Top line, Top left & Top right arc
- $this->img->Line($xt+$r,$yt,$xr-$r,$yt);
- $this->img->Arc($xt+$r,$yt+$r,$r*2,$r*2,180,270);
- $this->img->Arc($xr-$r,$yt+$r,$r*2,$r*2,270,360);
-
- // Left line, Bottom left arc
- $this->img->Line($xt,$yt+$r,$xt,$yl-$r);
- $this->img->Arc($xt+$r,$yl-$r,$r*2,$r*2,90,180);
-
- // Bottom line, Bottom right arc
- $this->img->Line($xt+$r,$yl,$xr-$iw-$r,$yl);
- $this->img->Arc($xr-$iw-$r,$yl-$r,$r*2,$r*2,0,90);
-
- // Right line
- $this->img->Line($xr,$yt+$r,$xr,$yl-$ih-$r);
-
- // Indent horizontal, Lower right arc
- $this->img->Line($xr-$r,$yl-$ih,$xr-$iw+$r,$yl-$ih);
- $this->img->Arc($xr-$r,$yl-$ih-$r,$r*2,$r*2,0,90);
-
- // Indent vertical, Indent arc
- $this->img->Line($xr-$iw,$yl-$r,$xr-$iw,$yl-$ih+$r);
- $this->img->Arc($xr-$iw+$r,$yl-$ih+$r,$r*2,$r*2,180,270);
-
- if( $aFillColor != '' ) {
- $bc = $this->img->current_color_name;
- $this->img->PushColor($aFillColor);
- $this->img->FillToBorder($xt+$r,$yt+$r,$bc);
- $this->img->PopColor();
- }
-
- break;
-
- case 3: // Lower left
- // Top line, Top left & Top right arc
- $this->img->Line($xt+$r,$yt,$xr-$r,$yt);
- $this->img->Arc($xt+$r,$yt+$r,$r*2,$r*2,180,270);
- $this->img->Arc($xr-$r,$yt+$r,$r*2,$r*2,270,360);
-
- // Right line, Bottom right arc
- $this->img->Line($xr,$yt+$r,$xr,$yl-$r);
- $this->img->Arc($xr-$r,$yl-$r,$r*2,$r*2,0,90);
-
- // Bottom line, Bottom left arc
- $this->img->Line($xt+$iw+$r,$yl,$xr-$r,$yl);
- $this->img->Arc($xt+$iw+$r,$yl-$r,$r*2,$r*2,90,180);
-
- // Left line
- $this->img->Line($xt,$yt+$r,$xt,$yl-$ih-$r);
-
- // Indent horizontal, Lower left arc
- $this->img->Line($xt+$r,$yl-$ih,$xt+$iw-$r,$yl-$ih);
- $this->img->Arc($xt+$r,$yl-$ih-$r,$r*2,$r*2,90,180);
-
- // Indent vertical, Indent arc
- $this->img->Line($xt+$iw,$yl-$ih+$r,$xt+$iw,$yl-$r);
- $this->img->Arc($xt+$iw-$r,$yl-$ih+$r,$r*2,$r*2,270,360);
-
- if( $aFillColor != '' ) {
- $bc = $this->img->current_color_name;
- $this->img->PushColor($aFillColor);
- $this->img->FillToBorder($xr-$r,$yt+$r,$bc);
- $this->img->PopColor();
- }
-
- break;
- }
- }
-}
-
-
-//===================================================
-// CLASS RectangleText
-// Description: Draws a text paragraph inside a
-// rounded, possible filled, rectangle.
-//===================================================
-class CanvasRectangleText {
- private $ix,$iy,$iw,$ih,$ir=4;
- private $iTxt,$iColor='black',$iFillColor='',$iFontColor='black';
- private $iParaAlign='center';
- private $iAutoBoxMargin=5;
- private $iShadowWidth=3,$iShadowColor='';
-
- function __construct($aTxt='',$xl=0,$yt=0,$w=0,$h=0) {
- $this->iTxt = new Text($aTxt);
- $this->ix = $xl;
- $this->iy = $yt;
- $this->iw = $w;
- $this->ih = $h;
- }
-
- function SetShadow($aColor='gray',$aWidth=3) {
- $this->iShadowColor = $aColor;
- $this->iShadowWidth = $aWidth;
- }
-
- function SetFont($FontFam,$aFontStyle,$aFontSize=12) {
- $this->iTxt->SetFont($FontFam,$aFontStyle,$aFontSize);
- }
-
- function SetTxt($aTxt) {
- $this->iTxt->Set($aTxt);
- }
-
- function ParagraphAlign($aParaAlign) {
- $this->iParaAlign = $aParaAlign;
- }
-
- function SetFillColor($aFillColor) {
- $this->iFillColor = $aFillColor;
- }
-
- function SetAutoMargin($aMargin) {
- $this->iAutoBoxMargin=$aMargin;
- }
-
- function SetColor($aColor) {
- $this->iColor = $aColor;
- }
-
- function SetFontColor($aColor) {
- $this->iFontColor = $aColor;
- }
-
- function SetPos($xl=0,$yt=0,$w=0,$h=0) {
- $this->ix = $xl;
- $this->iy = $yt;
- $this->iw = $w;
- $this->ih = $h;
- }
-
- function Pos($xl=0,$yt=0,$w=0,$h=0) {
- $this->ix = $xl;
- $this->iy = $yt;
- $this->iw = $w;
- $this->ih = $h;
- }
-
- function Set($aTxt,$xl,$yt,$w=0,$h=0) {
- $this->iTxt->Set($aTxt);
- $this->ix = $xl;
- $this->iy = $yt;
- $this->iw = $w;
- $this->ih = $h;
- }
-
- function SetCornerRadius($aRad=5) {
- $this->ir = $aRad;
- }
-
- function Stroke($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);
-
- }
-
-}
-
-
-?>
generated by cgit (git 2.34.1) at 2025-06-15 22:05:29 +0000