File Source for Shadow.class.php

<?php
/*
* This work is hereby released into the Public Domain.
* To view a copy of the public domain dedication,
* visit http://creativecommons.org/licenses/publicdomain/ or send a letter to
* Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.
*
*/
/**
* @package linea21.externals
* @subpackage artichow
*/
require_once dirname(__FILE__)."/../Graph.class.php";
/* <php4> */
define("SHADOW_LEFT_TOP", 1);
define("SHADOW_LEFT_BOTTOM", 2);
define("SHADOW_RIGHT_TOP", 3);
define("SHADOW_RIGHT_BOTTOM", 4);
define("SHADOW_IN", 1);
define("SHADOW_OUT", 2);
/* </php4> */
/**
* Draw shadows
*
*/
class awShadow {
/**
* Shadow on left and top sides
*
* @var int
*/
const LEFT_TOP = 1;
/**
* Shadow on left and bottom sides
*
* @var int
*/
const LEFT_BOTTOM = 2;
/**
* Shadow on right and top sides
*
* @var int
*/
const RIGHT_TOP = 3;
/**
* Shadow on right and bottom sides
*
* @var int
*/
const RIGHT_BOTTOM = 4;
/**
* In mode
*
* @var int
*/
const IN = 1;
/**
* Out mode
*
* @var int
*/
const OUT = 2;
/**
* Shadow size
*
* @var int
*/
private $size = 0;
/**
* Hide shadow ?
*
* @var bool
*/
protected $hide = FALSE;
/**
* Shadow color
*
* @var Color
*/
private $color;
/**
* Shadow position
*
* @var int
*/
private $position;
/**
* Smooth shadow ?
*
* @var bool
*/
private $smooth = FALSE;
/**
* Shadow constructor
*
* @param int $position Shadow position
*/
public function __construct($position) {
$this->setPosition($position);
}
/**
* Hide shadow ?
*
* @param bool $hide
*/
public function hide($hide = TRUE) {
$this->hide = (bool)$hide;
}
/**
* Show shadow ?
*
* @param bool $show
*/
public function show($show = TRUE) {
$this->hide = (bool)!$show;
}
/**
* Change shadow size
*
* @param int $size
* @param bool $smooth Smooth the shadow (facultative argument)
*/
public function setSize($size, $smooth = NULL) {
$this->size = (int)$size;
if($smooth !== NULL) {
$this->smooth($smooth);
}
}
/**
* Change shadow color
*
* @param awColor $color
*/
public function setColor(awColor $color) {
$this->color = $color;
}
/**
* Change shadow position
*
* @param int $position
*/
public function setPosition($position) {
$this->position = (int)$position;
}
/**
* Smooth shadow ?
*
* @param bool $smooth
*/
public function smooth($smooth) {
$this->smooth = (bool)$smooth;
}
/**
* Get the space taken by the shadow
*
* @return Side
*/
public function getSpace() {
return new awSide(
($this->position === awShadow::LEFT_TOP or $this->position === awShadow::LEFT_BOTTOM) ? $this->size : 0,
($this->position === awShadow::RIGHT_TOP or $this->position === awShadow::RIGHT_BOTTOM) ? $this->size : 0,
($this->position === awShadow::LEFT_TOP or $this->position === awShadow::RIGHT_TOP) ? $this->size : 0,
($this->position === awShadow::LEFT_BOTTOM or $this->position === awShadow::RIGHT_BOTTOM) ? $this->size : 0
);
}
/**
* Draw shadow
*
* @param awDriver $driver
* @param awPoint $p1 Top-left point
* @param awPoint $p2 Right-bottom point
* @param int Drawing mode
*/
public function draw(awDriver $driver, awPoint $p1, awPoint $p2, $mode) {
if($this->hide) {
return;
}
if($this->size <= 0) {
return;
}
$driver = clone $driver;
$color = ($this->color instanceof awColor) ? $this->color : new awColor(125, 125, 125);
switch($this->position) {
case awShadow::RIGHT_BOTTOM :
if($mode === awShadow::OUT) {
$t1 = $p1->move(0, 0);
$t2 = $p2->move($this->size + 1, $this->size + 1);
} else { // PHP 4 compatibility
$t1 = $p1->move(0, 0);
$t2 = $p2->move(0, 0);
}
$width = $t2->x - $t1->x;
$height = $t2->y - $t1->y;
$driver->setAbsPosition($t1->x + $driver->x, $t1->y + $driver->y);
$driver->filledRectangle(
$color,
new awLine(
new awPoint($width - $this->size, $this->size),
new awPoint($width - 1, $height - 1)
)
);
$driver->filledRectangle(
$color,
new awLine(
new awPoint($this->size, $height - $this->size),
new awPoint($width - $this->size - 1, $height - 1)
)
);
$this->smoothPast($driver, $color, $width, $height);
break;
case awShadow::LEFT_TOP :
if($mode === awShadow::OUT) {
$t1 = $p1->move(- $this->size, - $this->size);
$t2 = $p2->move(0, 0);
} else { // PHP 4 compatibility
$t1 = $p1->move(0, 0);
$t2 = $p2->move(0, 0);
}
$width = $t2->x - $t1->x;
$height = $t2->y - $t1->y;
$driver->setAbsPosition($t1->x + $driver->x, $t1->y + $driver->y);
$height = max($height + 1, $this->size);
$driver->filledRectangle(
$color,
new awLine(
new awPoint(0, 0),
new awPoint($this->size - 1, $height - $this->size - 1)
)
);
$driver->filledRectangle(
$color,
new awLine(
new awPoint($this->size, 0),
new awPoint($width - $this->size - 1, $this->size - 1)
)
);
$this->smoothPast($driver, $color, $width, $height);
break;
case awShadow::RIGHT_TOP :
if($mode === awShadow::OUT) {
$t1 = $p1->move(0, - $this->size);
$t2 = $p2->move($this->size + 1, 0);
} else { // PHP 4 compatibility
$t1 = $p1->move(0, 0);
$t2 = $p2->move(0, 0);
}
$width = $t2->x - $t1->x;
$height = $t2->y - $t1->y;
$driver->setAbsPosition($t1->x + $driver->x, $t1->y + $driver->y);
$height = max($height + 1, $this->size);
$driver->filledRectangle(
$color,
new awLine(
new awPoint($width - $this->size, 0),
new awPoint($width - 1, $height - $this->size - 1)
)
);
$driver->filledRectangle(
$color,
new awLine(
new awPoint($this->size, 0),
new awPoint($width - $this->size - 1, $this->size - 1)
)
);
$this->smoothFuture($driver, $color, $width, $height);
break;
case awShadow::LEFT_BOTTOM :
if($mode === awShadow::OUT) {
$t1 = $p1->move(- $this->size, 0);
$t2 = $p2->move(0, $this->size + 1);
} else { // PHP 4 compatibility
$t1 = $p1->move(0, 0);
$t2 = $p2->move(0, 0);
}
$width = $t2->x - $t1->x;
$height = $t2->y - $t1->y;
$driver->setAbsPosition($t1->x + $driver->x, $t1->y + $driver->y);
$driver->filledRectangle(
$color,
new awLine(
new awPoint(0, $this->size),
new awPoint($this->size - 1, $height - 1)
)
);
$driver->filledRectangle(
$color,
new awLine(
new awPoint($this->size, $height - $this->size),
new awPoint($width - $this->size - 1, $height - 1)
)
);
$this->smoothFuture($driver, $color, $width, $height);
break;
}
}
private function smoothPast(awDriver $driver, awColor $color, $width, $height) {
if($this->smooth) {
for($i = 0; $i < $this->size; $i++) {
for($j = 0; $j <= $i; $j++) {
$driver->point(
$color,
new awPoint($i, $j + $height - $this->size)
);
}
}
for($i = 0; $i < $this->size; $i++) {
for($j = 0; $j <= $i; $j++) {
$driver->point(
$color,
new awPoint($width - $this->size + $j, $i)
);
}
}
}
}
private function smoothFuture(awDriver $driver, awColor $color, $width, $height) {
if($this->smooth) {
for($i = 0; $i < $this->size; $i++) {
for($j = 0; $j <= $i; $j++) {
$driver->point(
$color,
new awPoint($i, $this->size - $j - 1)
);
}
}
for($i = 0; $i < $this->size; $i++) {
for($j = 0; $j <= $i; $j++) {
$driver->point(
$color,
new awPoint($width - $this->size + $j, $height - $i - 1)
);
}
}
}
}
}
registerClass('Shadow');
?>

Source for file Shadow.class.php