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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 22:12:48 +0000