Rounded rectangle

Add-On Rounded rectangle

Informations

Author: Maxime Delorme
License: FPDF

Description

Allows to draw rounded rectangles. Parameters are:

x, y: top left corner of the rectangle.
w, h: width and height.
r: radius of the rounded corners.
style: same as Rect(): F, D (default value), FD or DF.

Remark: there's another version of this script that allows to choose what corners should be rounded.

Source

<?php
require('fpdf.php');

class PDF extends FPDF
{
    function RoundedRect($x, $y, $w, $h, $r, $style = '')
    {
        $k = $this->k;
        $hp = $this->h;
        if($style=='F')
            $op='f';
        elseif($style=='FD' || $style=='DF')
            $op='B';
        else
            $op='S';
        $MyArc = 4/3 * (sqrt(2) - 1);
        $this->_out(sprintf('%.2F %.2F m', ($x+$r)*$k, ($hp-$y)*$k ));
        $xc = $x+$w-$r ;
        $yc = $y+$r;
        $this->_out(sprintf('%.2F %.2F l', $xc*$k, ($hp-$y)*$k ));

        $this->_Arc($xc + $r*$MyArc, $yc - $r, $xc + $r, $yc - $r*$MyArc, $xc + $r, $yc);
        $xc = $x+$w-$r ;
        $yc = $y+$h-$r;
        $this->_out(sprintf('%.2F %.2F l', ($x+$w)*$k, ($hp-$yc)*$k));
        $this->_Arc($xc + $r, $yc + $r*$MyArc, $xc + $r*$MyArc, $yc + $r, $xc, $yc + $r);
        $xc = $x+$r ;
        $yc = $y+$h-$r;
        $this->_out(sprintf('%.2F %.2F l', $xc*$k, ($hp-($y+$h))*$k));
        $this->_Arc($xc - $r*$MyArc, $yc + $r, $xc - $r, $yc + $r*$MyArc, $xc - $r, $yc);
        $xc = $x+$r ;
        $yc = $y+$r;
        $this->_out(sprintf('%.2F %.2F l', ($x)*$k, ($hp-$yc)*$k ));
        $this->_Arc($xc - $r, $yc - $r*$MyArc, $xc - $r*$MyArc, $yc - $r, $xc, $yc - $r);
        $this->_out($op);
    }

    function _Arc($x1, $y1, $x2, $y2, $x3, $y3)
    {
        $h = $this->h;
        $this->_out(sprintf('%.2F %.2F %.2F %.2F %.2F %.2F c ', $x1*$this->k, ($h-$y1)*$this->k, 
            $x2*$this->k, ($h-$y2)*$this->k, $x3*$this->k, ($h-$y3)*$this->k));
    }
}
?>

Example

<?php
require('rounded_rect.php');

$pdf=new PDF();
$pdf->AddPage();
$pdf->SetLineWidth(0.5);
$pdf->SetFillColor(192);
$pdf->RoundedRect(70, 30, 68, 46, 3.5, 'DF');
$pdf->Output();
?>

View the result here.

Download

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