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<?php
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/*
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* This work is hereby released into the Public Domain.
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* To view a copy of the public domain dedication,
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* visit http://creativecommons.org/licenses/publicdomain/ or send a letter to
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* Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.
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*
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*/
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require_once dirname(__FILE__)."/../Driver.class.php";
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/**
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* Draw your objects
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*
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* @package Artichow
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*/
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class awGDDriver extends Driver {
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/**
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* A GD resource
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*
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* @var $resource
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*/
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public $resource;
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public function __construct() {
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parent::__construct();
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$this->driverString = 'gd';
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}
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public function init(awImage $image) {
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if($this->resource === NULL) {
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$this->setImageSize($image->width, $image->height);
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// Create image
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$this->resource = imagecreatetruecolor($this->imageWidth, $this->imageHeight);
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if(!$this->resource) {
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awImage::drawError("Class Image: Unable to create a graph.");
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}
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imagealphablending($this->resource, TRUE);
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// Antialiasing is now handled by the Driver object
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$this->setAntiAliasing($image->getAntiAliasing());
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// Original color
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$this->filledRectangle(
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new awWhite,
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new awLine(
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new awPoint(0, 0),
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new awPoint($this->imageWidth, $this->imageHeight)
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)
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);
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$shadow = $image->shadow;
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if($shadow !== NULL) {
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$shadow = $shadow->getSpace();
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$p1 = new awPoint($shadow->left, $shadow->top);
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$p2 = new awPoint($this->imageWidth - $shadow->right - 1, $this->imageHeight - $shadow->bottom - 1);
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// Draw image background
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$this->filledRectangle($image->getBackground(), new awLine($p1, $p2));
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// Draw image border
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$image->border->rectangle($this, $p1, $p2);
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}
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}
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}
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public function initFromFile(awFileImage $fileImage, $file) {
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$image = @getimagesize((string)$file);
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if($image and in_array($image[2], array(2, 3))) {
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$fileImage->setSize($image[0], $image[1]);
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switch($image[2]) {
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case 2 :
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$this->resource = imagecreatefromjpeg($file);
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break;
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case 3 :
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$this->resource = imagecreatefrompng($file);
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break;
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}
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$this->setImageSize($fileImage->width, $fileImage->height);
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} else {
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awImage::drawError("Class FileImage: Artichow does not support the format of this image (must be in PNG or JPEG)");
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}
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}
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public function setImageSize($width, $height) {
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$this->imageWidth = $width;
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$this->imageHeight = $height;
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}
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public function setPosition($x, $y) {
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// Calculate absolute position
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$this->x = round($x * $this->imageWidth - $this->w / 2);
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$this->y = round($y * $this->imageHeight - $this->h / 2);
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}
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public function setAbsPosition($x, $y) {
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$this->x = $x;
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$this->y = $y;
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}
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public function movePosition($x, $y) {
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$this->x += (int)$x;
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$this->y += (int)$y;
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}
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public function setSize($w, $h) {
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// Calcul absolute size
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$this->w = round($w * $this->imageWidth);
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$this->h = round($h * $this->imageHeight);
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return $this->getSize();
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}
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public function setAbsSize($w, $h) {
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$this->w = $w;
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$this->h = $h;
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return $this->getSize();
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}
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public function getSize() {
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return array($this->w, $this->h);
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}
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public function setAntiAliasing($bool) {
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if(function_exists('imageantialias')) {
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imageantialias($this->resource, (bool)$bool);
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$this->antiAliasing = (bool)$bool;
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} else {
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awImage::drawErrorFile('missing-anti-aliasing');
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}
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}
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public function getColor(awColor $color) {
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if($color->alpha === 0 or function_exists('imagecolorallocatealpha') === FALSE) {
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$gdColor = imagecolorallocate($this->resource, $color->red, $color->green, $color->blue);
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} else {
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$gdColor = imagecolorallocatealpha($this->resource, $color->red, $color->green, $color->blue, $color->alpha);
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}
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return $gdColor;
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}
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public function copyImage(awImage $image, awPoint $p1, awPoint $p2) {
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list($x1, $y1) = $p1->getLocation();
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list($x2, $y2) = $p2->getLocation();
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$driver = $image->getDriver();
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imagecopy($this->resource, $driver->resource, $this->x + $x1, $this->y + $y1, 0, 0, $x2 - $x1, $y2 - $y1);
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}
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public function copyResizeImage(awImage $image, awPoint $d1, awPoint $d2, awPoint $s1, awPoint $s2, $resample = TRUE) {
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if($resample) {
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$function = 'imagecopyresampled';
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} else {
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$function = 'imagecopyresized';
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}
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$driver = $image->getDriver();
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$function(
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$this->resource,
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$driver->resource,
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$this->x + $d1->x, $this->y + $d1->y,
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$s1->x, $s1->y,
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$d2->x - $d1->x, $d2->y - $d1->y,
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$s2->x - $s1->x, $s2->y - $s1->y
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);
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}
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public function string(awText $text, awPoint $point, $width = NULL) {
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$font = $text->getFont();
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// Can we deal with that font?
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if($this->isCompatibleWithFont($font) === FALSE) {
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awImage::drawError('Class GDDriver: Incompatible font type (\''.get_class($font).'\')');
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}
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// Check which FontDriver to use
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if($font instanceof awPHPFont) {
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$fontDriver = $this->phpFontDriver;
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} else {
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$fontDriver = $this->fileFontDriver;
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}
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if($text->getBackground() !== NULL or $text->border->visible()) {
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list($left, $right, $top, $bottom) = $text->getPadding();
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$textWidth = $fontDriver->getTextWidth($text, $this);
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$textHeight = $fontDriver->getTextHeight($text, $this);
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$x1 = floor($point->x - $left);
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$y1 = floor($point->y - $top);
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$x2 = $x1 + $textWidth + $left + $right;
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$y2 = $y1 + $textHeight + $top + $bottom;
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$this->filledRectangle(
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$text->getBackground(),
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awLine::build($x1, $y1, $x2, $y2)
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);
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$text->border->rectangle(
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$this,
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new awPoint($x1 - 1, $y1 - 1),
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new awPoint($x2 + 1, $y2 + 1)
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);
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}
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$fontDriver->string($this, $text, $point, $width);
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}
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public function point(awColor $color, awPoint $p) {
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if($p->isHidden() === FALSE) {
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$rgb = $this->getColor($color);
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imagesetpixel($this->resource, $this->x + round($p->x), $this->y + round($p->y), $rgb);
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}
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}
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public function line(awColor $color, awLine $line) {
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if($line->thickness > 0 and $line->isHidden() === FALSE) {
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$rgb = $this->getColor($color);
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$thickness = $line->thickness;
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list($p1, $p2) = $line->getLocation();
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$this->startThickness($thickness);
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switch($line->getStyle()) {
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case awLine::SOLID :
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imageline($this->resource, $this->x + round($p1->x), $this->y + round($p1->y), $this->x + round($p2->x), $this->y + round($p2->y), $rgb);
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break;
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case awLine::DOTTED :
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$size = sqrt(pow($p2->y - $p1->y, 2) + pow($p2->x - $p1->x, 2));
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$cos = ($p2->x - $p1->x) / $size;
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$sin = ($p2->y - $p1->y) / $size;
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for($i = 0; $i <= $size; $i += 2) {
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$p = new awPoint(
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round($i * $cos + $p1->x),
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round($i * $sin + $p1->y)
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);
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$this->point($color, $p);
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}
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break;
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case awLine::DASHED :
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$width = $p2->x - $p1->x;
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$height = $p2->y - $p1->y;
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$size = sqrt(pow($height, 2) + pow($width, 2));
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if($size == 0) {
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return;
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}
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$cos = $width / $size;
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$sin = $height / $size;
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$functionX = ($width > 0) ? 'min' : 'max';
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$functionY = ($height > 0) ? 'min' : 'max';
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for($i = 0; $i <= $size; $i += 6) {
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$t1 = new awPoint(
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round($i * $cos + $p1->x),
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round($i * $sin + $p1->y)
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);
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$t2 = new awPoint(
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round($functionX(($i + 3) * $cos, $width) + $p1->x),
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round($functionY(($i + 3) * $sin, $height) + $p1->y)
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);
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$this->line($color, new awLine($t1, $t2));
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}
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break;
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}
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$this->stopThickness($thickness);
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}
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}
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public function arc(awColor $color, awPoint $center, $width, $height, $from, $to) {
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imagefilledarc(
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$this->resource,
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$this->x + $center->x, $this->y + $center->y,
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$width, $height,
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$from, $to,
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$this->getColor($color),
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IMG_ARC_EDGED | IMG_ARC_NOFILL
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);
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}
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public function filledArc(awColor $color, awPoint $center, $width, $height, $from, $to) {
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imagefilledarc(
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$this->resource,
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$this->x + $center->x, $this->y + $center->y,
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$width, $height,
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$from, $to,
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$this->getColor($color),
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IMG_ARC_PIE
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);
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}
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358 |
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public function ellipse(awColor $color, awPoint $center, $width, $height) {
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360 |
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list($x, $y) = $center->getLocation();
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362 |
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$rgb = $this->getColor($color);
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imageellipse(
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$this->resource,
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$this->x + $x,
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$this->y + $y,
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$width,
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$height,
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$rgb
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);
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}
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374 |
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375 |
public function filledEllipse($background, awPoint $center, $width, $height) {
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376 |
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377 |
if($background instanceof awColor) {
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378 |
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379 |
list($x, $y) = $center->getLocation();
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380 |
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381 |
$rgb = $this->getColor($background);
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382 |
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383 |
imagefilledellipse(
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384 |
$this->resource,
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385 |
$this->x + $x,
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|
|
386 |
$this->y + $y,
|
|
|
387 |
$width,
|
|
|
388 |
$height,
|
|
|
389 |
$rgb
|
|
|
390 |
);
|
|
|
391 |
|
|
|
392 |
} else if($background instanceof awGradient) {
|
|
|
393 |
|
|
|
394 |
list($x, $y) = $center->getLocation();
|
|
|
395 |
|
|
|
396 |
$x1 = $x - round($width / 2);
|
|
|
397 |
$y1 = $y - round($height / 2);
|
|
|
398 |
$x2 = $x1 + $width;
|
|
|
399 |
$y2 = $y1 + $height;
|
|
|
400 |
|
|
|
401 |
$gradientDriver = new awGDGradientDriver($this);
|
|
|
402 |
$gradientDriver->filledEllipse(
|
|
|
403 |
$background,
|
|
|
404 |
$x1, $y1,
|
|
|
405 |
$x2, $y2
|
|
|
406 |
);
|
|
|
407 |
|
|
|
408 |
}
|
|
|
409 |
|
|
|
410 |
}
|
|
|
411 |
|
|
|
412 |
public function rectangle(awColor $color, awLine $line) {
|
|
|
413 |
|
|
|
414 |
list($p1, $p2) = $line->getLocation();
|
|
|
415 |
|
|
|
416 |
switch($line->getStyle()) {
|
|
|
417 |
|
|
|
418 |
case awLine::SOLID :
|
|
|
419 |
$thickness = $line->getThickness();
|
|
|
420 |
$this->startThickness($thickness);
|
|
|
421 |
$rgb = $this->getColor($color);
|
|
|
422 |
imagerectangle($this->resource, $this->x + $p1->x, $this->y + $p1->y, $this->x + $p2->x, $this->y + $p2->y, $rgb);
|
|
|
423 |
$this->stopThickness($thickness);
|
|
|
424 |
break;
|
|
|
425 |
|
|
|
426 |
default :
|
|
|
427 |
|
|
|
428 |
$side = clone $line;
|
|
|
429 |
|
|
|
430 |
|
|
|
431 |
|
|
|
432 |
// Top side
|
|
|
433 |
$side->setLocation(
|
|
|
434 |
new awPoint($p1->x, $p1->y),
|
|
|
435 |
new awPoint($p2->x, $p1->y)
|
|
|
436 |
);
|
|
|
437 |
$this->line($color, $side);
|
|
|
438 |
|
|
|
439 |
// Right side
|
|
|
440 |
$side->setLocation(
|
|
|
441 |
new awPoint($p2->x, $p1->y),
|
|
|
442 |
new awPoint($p2->x, $p2->y)
|
|
|
443 |
);
|
|
|
444 |
$this->line($color, $side);
|
|
|
445 |
|
|
|
446 |
// Bottom side
|
|
|
447 |
$side->setLocation(
|
|
|
448 |
new awPoint($p1->x, $p2->y),
|
|
|
449 |
new awPoint($p2->x, $p2->y)
|
|
|
450 |
);
|
|
|
451 |
$this->line($color, $side);
|
|
|
452 |
|
|
|
453 |
// Left side
|
|
|
454 |
$side->setLocation(
|
|
|
455 |
new awPoint($p1->x, $p1->y),
|
|
|
456 |
new awPoint($p1->x, $p2->y)
|
|
|
457 |
);
|
|
|
458 |
$this->line($color, $side);
|
|
|
459 |
|
|
|
460 |
break;
|
|
|
461 |
|
|
|
462 |
}
|
|
|
463 |
|
|
|
464 |
}
|
|
|
465 |
|
|
|
466 |
public function filledRectangle($background, awLine $line) {
|
|
|
467 |
|
|
|
468 |
$p1 = $line->p1;
|
|
|
469 |
$p2 = $line->p2;
|
|
|
470 |
|
|
|
471 |
if($background instanceof awColor) {
|
|
|
472 |
$rgb = $this->getColor($background);
|
|
|
473 |
imagefilledrectangle($this->resource, $this->x + $p1->x, $this->y + $p1->y, $this->x + $p2->x, $this->y + $p2->y, $rgb);
|
|
|
474 |
} else if($background instanceof awGradient) {
|
|
|
475 |
$gradientDriver = new awGDGradientDriver($this);
|
|
|
476 |
$gradientDriver->filledRectangle($background, $p1, $p2);
|
|
|
477 |
}
|
|
|
478 |
|
|
|
479 |
}
|
|
|
480 |
|
|
|
481 |
public function polygon(awColor $color, awPolygon $polygon) {
|
|
|
482 |
|
|
|
483 |
switch($polygon->getStyle()) {
|
|
|
484 |
|
|
|
485 |
case awPolygon::SOLID :
|
|
|
486 |
$thickness = $polygon->getThickness();
|
|
|
487 |
$this->startThickness($thickness);
|
|
|
488 |
$points = $this->getPolygonPoints($polygon);
|
|
|
489 |
$rgb = $this->getColor($color);
|
|
|
490 |
imagepolygon($this->resource, $points, $polygon->count(), $rgb);
|
|
|
491 |
$this->stopThickness($thickness);
|
|
|
492 |
break;
|
|
|
493 |
|
|
|
494 |
default :
|
|
|
495 |
|
|
|
496 |
if($polygon->count() > 1) {
|
|
|
497 |
|
|
|
498 |
$prev = $polygon->get(0);
|
|
|
499 |
|
|
|
500 |
$line = new awLine;
|
|
|
501 |
$line->setStyle($polygon->getStyle());
|
|
|
502 |
$line->setThickness($polygon->getThickness());
|
|
|
503 |
|
|
|
504 |
for($i = 1; $i < $polygon->count(); $i++) {
|
|
|
505 |
$current = $polygon->get($i);
|
|
|
506 |
$line->setLocation($prev, $current);
|
|
|
507 |
$this->line($color, $line);
|
|
|
508 |
$prev = $current;
|
|
|
509 |
}
|
|
|
510 |
|
|
|
511 |
// Close the polygon
|
|
|
512 |
$line->setLocation($prev, $polygon->get(0));
|
|
|
513 |
$this->line($color, $line);
|
|
|
514 |
|
|
|
515 |
}
|
|
|
516 |
|
|
|
517 |
}
|
|
|
518 |
|
|
|
519 |
}
|
|
|
520 |
|
|
|
521 |
public function filledPolygon($background, awPolygon $polygon) {
|
|
|
522 |
|
|
|
523 |
if($background instanceof awColor) {
|
|
|
524 |
|
|
|
525 |
$points = $this->getPolygonPoints($polygon);
|
|
|
526 |
$rgb = $this->getColor($background);
|
|
|
527 |
|
|
|
528 |
imagefilledpolygon($this->resource, $points, $polygon->count(), $rgb);
|
|
|
529 |
|
|
|
530 |
} else if($background instanceof awGradient) {
|
|
|
531 |
|
|
|
532 |
$gradientDriver = new awGDGradientDriver($this);
|
|
|
533 |
$gradientDriver->filledPolygon($background, $polygon);
|
|
|
534 |
|
|
|
535 |
}
|
|
|
536 |
|
|
|
537 |
}
|
|
|
538 |
|
|
|
539 |
public function send(awImage $image) {
|
|
|
540 |
|
|
|
541 |
$this->drawImage($image);
|
|
|
542 |
|
|
|
543 |
}
|
|
|
544 |
|
|
|
545 |
public function get(awImage $image) {
|
|
|
546 |
|
|
|
547 |
return $this->drawImage($image, TRUE, FALSE);
|
|
|
548 |
|
|
|
549 |
}
|
|
|
550 |
|
|
|
551 |
public function getTextWidth(awText $text) {
|
|
|
552 |
$font = $text->getFont();
|
|
|
553 |
|
|
|
554 |
if($font instanceof awPHPFont) {
|
|
|
555 |
$fontDriver = $this->phpFontDriver;
|
|
|
556 |
} else {
|
|
|
557 |
$fontDriver = $this->fileFontDriver;
|
|
|
558 |
}
|
|
|
559 |
|
|
|
560 |
return $fontDriver->getTextWidth($text, $this);
|
|
|
561 |
}
|
|
|
562 |
|
|
|
563 |
public function getTextHeight(awText $text) {
|
|
|
564 |
$font = $text->getFont();
|
|
|
565 |
|
|
|
566 |
if($font instanceof awPHPFont) {
|
|
|
567 |
$fontDriver = $this->phpFontDriver;
|
|
|
568 |
} else {
|
|
|
569 |
$fontDriver = $this->fileFontDriver;
|
|
|
570 |
}
|
|
|
571 |
|
|
|
572 |
return $fontDriver->getTextHeight($text, $this);
|
|
|
573 |
}
|
|
|
574 |
|
|
|
575 |
protected function isCompatibleWithFont(awFont $font) {
|
|
|
576 |
if($font instanceof awFDBFont) {
|
|
|
577 |
return FALSE;
|
|
|
578 |
} else {
|
|
|
579 |
return TRUE;
|
|
|
580 |
}
|
|
|
581 |
}
|
|
|
582 |
|
|
|
583 |
private function drawImage(awImage $image, $return = FALSE, $header = TRUE) {
|
|
|
584 |
|
|
|
585 |
$format = $image->getFormatString();
|
|
|
586 |
|
|
|
587 |
// Test if format is available
|
|
|
588 |
if((imagetypes() & $image->getFormat()) === FALSE) {
|
|
|
589 |
awImage::drawError("Class Image: Format '".$format."' is not available on your system. Check that your PHP has been compiled with the good libraries.");
|
|
|
590 |
}
|
|
|
591 |
|
|
|
592 |
// Get some infos about this image
|
|
|
593 |
switch($format) {
|
|
|
594 |
case 'jpeg' :
|
|
|
595 |
$function = 'imagejpeg';
|
|
|
596 |
break;
|
|
|
597 |
case 'png' :
|
|
|
598 |
$function = 'imagepng';
|
|
|
599 |
break;
|
|
|
600 |
case 'gif' :
|
|
|
601 |
$function = 'imagegif';
|
|
|
602 |
break;
|
|
|
603 |
}
|
|
|
604 |
|
|
|
605 |
// Send headers to the browser
|
|
|
606 |
if($header === TRUE) {
|
|
|
607 |
$image->sendHeaders();
|
|
|
608 |
}
|
|
|
609 |
|
|
|
610 |
if($return) {
|
|
|
611 |
ob_start();
|
|
|
612 |
}
|
|
|
613 |
|
|
|
614 |
$function($this->resource);
|
|
|
615 |
|
|
|
616 |
if($return) {
|
|
|
617 |
return ob_get_clean();
|
|
|
618 |
}
|
|
|
619 |
}
|
|
|
620 |
|
|
|
621 |
private function getPolygonPoints(awPolygon $polygon) {
|
|
|
622 |
|
|
|
623 |
$points = array();
|
|
|
624 |
|
|
|
625 |
foreach($polygon->all() as $point) {
|
|
|
626 |
$points[] = $point->x + $this->x;
|
|
|
627 |
$points[] = $point->y + $this->y;
|
|
|
628 |
}
|
|
|
629 |
|
|
|
630 |
return $points;
|
|
|
631 |
|
|
|
632 |
}
|
|
|
633 |
|
|
|
634 |
private function startThickness($thickness) {
|
|
|
635 |
|
|
|
636 |
if($thickness > 1) {
|
|
|
637 |
|
|
|
638 |
// Beurk :'(
|
|
|
639 |
if($this->antiAliasing and function_exists('imageantialias')) {
|
|
|
640 |
imageantialias($this->resource, FALSE);
|
|
|
641 |
}
|
|
|
642 |
imagesetthickness($this->resource, $thickness);
|
|
|
643 |
|
|
|
644 |
}
|
|
|
645 |
|
|
|
646 |
}
|
|
|
647 |
|
|
|
648 |
private function stopThickness($thickness) {
|
|
|
649 |
|
|
|
650 |
if($thickness > 1) {
|
|
|
651 |
|
|
|
652 |
if($this->antiAliasing and function_exists('imageantialias')) {
|
|
|
653 |
imageantialias($this->resource, TRUE);
|
|
|
654 |
}
|
|
|
655 |
imagesetthickness($this->resource, 1);
|
|
|
656 |
|
|
|
657 |
}
|
|
|
658 |
|
|
|
659 |
}
|
|
|
660 |
|
|
|
661 |
|
|
|
662 |
}
|
|
|
663 |
|
|
|
664 |
registerClass('GDDriver');
|
|
|
665 |
|
|
|
666 |
/**
|
|
|
667 |
* To your gradients
|
|
|
668 |
*
|
|
|
669 |
* @package Artichow
|
|
|
670 |
*/
|
|
|
671 |
|
|
|
672 |
class awGDGradientDriver {
|
|
|
673 |
|
|
|
674 |
/**
|
|
|
675 |
* A driver
|
|
|
676 |
*
|
|
|
677 |
* @var awGDDriver
|
|
|
678 |
*/
|
|
|
679 |
protected $driver;
|
|
|
680 |
|
|
|
681 |
/**
|
|
|
682 |
* Build your GDGradientDriver
|
|
|
683 |
*
|
|
|
684 |
* @var awGDDriver $driver
|
|
|
685 |
*/
|
|
|
686 |
public function __construct(awGDDriver $driver) {
|
|
|
687 |
|
|
|
688 |
$this->driver = $driver;
|
|
|
689 |
|
|
|
690 |
}
|
|
|
691 |
|
|
|
692 |
public function drawFilledFlatTriangle(awGradient $gradient, awPoint $a, awPoint $b, awPoint $c) {
|
|
|
693 |
|
|
|
694 |
if($gradient->angle !== 0) {
|
|
|
695 |
awImage::drawError("Class GDGradientDriver: Flat triangles can only be used with 0 degree gradients.");
|
|
|
696 |
}
|
|
|
697 |
|
|
|
698 |
// Look for right-angled triangle
|
|
|
699 |
if($a->x !== $b->x and $b->x !== $c->x) {
|
|
|
700 |
awImage::drawError("Class GDGradientDriver: Not right-angled flat triangles are not supported yet.");
|
|
|
701 |
}
|
|
|
702 |
|
|
|
703 |
if($a->x === $b->x) {
|
|
|
704 |
$d = $a;
|
|
|
705 |
$e = $c;
|
|
|
706 |
} else {
|
|
|
707 |
$d = $c;
|
|
|
708 |
$e = $a;
|
|
|
709 |
}
|
|
|
710 |
|
|
|
711 |
$this->init($gradient, $b->y - $d->y);
|
|
|
712 |
|
|
|
713 |
for($i = $c->y + 1; $i < $b->y; $i++) {
|
|
|
714 |
|
|
|
715 |
$color = $this->color($i - $d->y);
|
|
|
716 |
$pos = ($i - $d->y) / ($b->y - $d->y);
|
|
|
717 |
|
|
|
718 |
$p1 = new awPoint($e->x, $i);
|
|
|
719 |
$p2 = new awPoint(1 + floor($e->x - $pos * ($e->x - $d->x)), $i);
|
|
|
720 |
|
|
|
721 |
$this->driver->filledRectangle($color, new awLine($p1, $p2));
|
|
|
722 |
|
|
|
723 |
unset($color);
|
|
|
724 |
|
|
|
725 |
}
|
|
|
726 |
|
|
|
727 |
}
|
|
|
728 |
|
|
|
729 |
protected function drawFilledTriangle(awGradient $gradient, awPolygon $polygon) {
|
|
|
730 |
|
|
|
731 |
if($gradient->angle === 0) {
|
|
|
732 |
$this->drawFilledTriangleVertically($gradient, $polygon);
|
|
|
733 |
} elseif($gradient->angle === 90) {
|
|
|
734 |
$this->drawFilledTriangleHorizontally($gradient, $polygon);
|
|
|
735 |
}
|
|
|
736 |
|
|
|
737 |
}
|
|
|
738 |
|
|
|
739 |
private function drawFilledTriangleVertically(awGradient $gradient, awPolygon $polygon) {
|
|
|
740 |
list($yMin, $yMax) = $polygon->getBoxYRange();
|
|
|
741 |
|
|
|
742 |
$this->init($gradient, $yMax - $yMin);
|
|
|
743 |
|
|
|
744 |
// Get the triangle line we will draw our lines from
|
|
|
745 |
$fromLine = NULL;
|
|
|
746 |
$lines = $polygon->getLines();
|
|
|
747 |
|
|
|
748 |
$count = count($lines);
|
|
|
749 |
|
|
|
750 |
// Pick the side of the triangle going from the top
|
|
|
751 |
// to the bottom of the surrounding box
|
|
|
752 |
for($i = 0; $i < $count; $i++) {
|
|
|
753 |
if($lines[$i]->isTopToBottom($polygon)) {
|
|
|
754 |
list($fromLine) = array_splice($lines, $i, 1);
|
|
|
755 |
break;
|
|
|
756 |
}
|
|
|
757 |
}
|
|
|
758 |
|
|
|
759 |
// If for some reason the three points are aligned,
|
|
|
760 |
// $fromLine will still be NULL
|
|
|
761 |
if($fromLine === NULL) {
|
|
|
762 |
return;
|
|
|
763 |
}
|
|
|
764 |
|
|
|
765 |
$fillLine = NULL;
|
|
|
766 |
for($y = round($yMin); $y < round($yMax); $y++) {
|
|
|
767 |
|
|
|
768 |
$fromX = $fromLine->getXFrom($y);
|
|
|
769 |
|
|
|
770 |
$toX = array();
|
|
|
771 |
foreach($lines as $line) {
|
|
|
772 |
$xValue = $line->getXFrom($y);
|
|
|
773 |
|
|
|
774 |
if(!is_null($xValue)) {
|
|
|
775 |
$toX[] = $xValue;
|
|
|
776 |
}
|
|
|
777 |
}
|
|
|
778 |
|
|
|
779 |
if(count($toX) === 1) {
|
|
|
780 |
$fillLine = new Line(
|
|
|
781 |
new Point($fromX, $y),
|
|
|
782 |
new Point($toX[0], $y)
|
|
|
783 |
);
|
|
|
784 |
} else {
|
|
|
785 |
|
|
|
786 |
$line1 = new Line(
|
|
|
787 |
new Point($fromX, $y),
|
|
|
788 |
new Point($toX[0], $y)
|
|
|
789 |
);
|
|
|
790 |
$line2 = new Line(
|
|
|
791 |
new Point($fromX, $y),
|
|
|
792 |
new Point($toX[1], $y)
|
|
|
793 |
);
|
|
|
794 |
|
|
|
795 |
if($line1->getSize() < $line2->getSize()) {
|
|
|
796 |
$fillLine = $line1;
|
|
|
797 |
} else {
|
|
|
798 |
$fillLine = $line2;
|
|
|
799 |
}
|
|
|
800 |
}
|
|
|
801 |
|
|
|
802 |
if(!$fillLine->isPoint()) {
|
|
|
803 |
$color = $this->color($y - $yMin);
|
|
|
804 |
$this->driver->line($color, $fillLine);
|
|
|
805 |
|
|
|
806 |
unset($color);
|
|
|
807 |
}
|
|
|
808 |
}
|
|
|
809 |
|
|
|
810 |
}
|
|
|
811 |
|
|
|
812 |
private function drawFilledTriangleHorizontally(awGradient $gradient, awPolygon $polygon) {
|
|
|
813 |
list($xMin, $xMax) = $polygon->getBoxXRange();
|
|
|
814 |
|
|
|
815 |
$this->init($gradient, $xMax - $xMin);
|
|
|
816 |
|
|
|
817 |
// Get the triangle line we will draw our lines from
|
|
|
818 |
$fromLine = NULL;
|
|
|
819 |
$lines = $polygon->getLines();
|
|
|
820 |
|
|
|
821 |
$count = count($lines);
|
|
|
822 |
|
|
|
823 |
// Pick the side of the triangle going all the way
|
|
|
824 |
// from the left side to the right side of the surrounding box
|
|
|
825 |
for($i = 0; $i < $count; $i++) {
|
|
|
826 |
if($lines[$i]->isLeftToRight($polygon)) {
|
|
|
827 |
list($fromLine) = array_splice($lines, $i, 1);
|
|
|
828 |
break;
|
|
|
829 |
}
|
|
|
830 |
}
|
|
|
831 |
|
|
|
832 |
// If for some reason the three points are aligned,
|
|
|
833 |
// $fromLine will still be NULL
|
|
|
834 |
if($fromLine === NULL) {
|
|
|
835 |
return;
|
|
|
836 |
}
|
|
|
837 |
|
|
|
838 |
$fillLine = NULL;
|
|
|
839 |
for($x = round($xMin); $x < round($xMax); $x++) {
|
|
|
840 |
|
|
|
841 |
$fromY = floor($fromLine->getYFrom($x));
|
|
|
842 |
|
|
|
843 |
$toY = array();
|
|
|
844 |
foreach($lines as $line) {
|
|
|
845 |
$yValue = $line->getYFrom($x);
|
|
|
846 |
|
|
|
847 |
if(!is_null($yValue)) {
|
|
|
848 |
$toY[] = floor($yValue);
|
|
|
849 |
}
|
|
|
850 |
}
|
|
|
851 |
|
|
|
852 |
if(count($toY) === 1) {
|
|
|
853 |
$fillLine = new Line(
|
|
|
854 |
new Point($x, $fromY),
|
|
|
855 |
new Point($x, $toY[0])
|
|
|
856 |
);
|
|
|
857 |
} else {
|
|
|
858 |
|
|
|
859 |
$line1 = new Line(
|
|
|
860 |
new Point($x, $fromY),
|
|
|
861 |
new Point($x, $toY[0])
|
|
|
862 |
);
|
|
|
863 |
$line2 = new Line(
|
|
|
864 |
new Point($x, $fromY),
|
|
|
865 |
new Point($x, $toY[1])
|
|
|
866 |
);
|
|
|
867 |
|
|
|
868 |
if($line1->getSize() < $line2->getSize()) {
|
|
|
869 |
$fillLine = $line1;
|
|
|
870 |
} else {
|
|
|
871 |
$fillLine = $line2;
|
|
|
872 |
}
|
|
|
873 |
}
|
|
|
874 |
|
|
|
875 |
$color = $this->color($x - $xMin);
|
|
|
876 |
if($fillLine->isPoint()) {
|
|
|
877 |
$this->driver->point($color, $fillLine->p1);
|
|
|
878 |
} elseif($fillLine->getSize() >= 1) {
|
|
|
879 |
$this->driver->line($color, $fillLine);
|
|
|
880 |
}
|
|
|
881 |
unset($color);
|
|
|
882 |
}
|
|
|
883 |
|
|
|
884 |
}
|
|
|
885 |
|
|
|
886 |
public function filledRectangle(awGradient $gradient, awPoint $p1, awPoint $p2) {
|
|
|
887 |
|
|
|
888 |
list($x1, $y1) = $p1->getLocation();
|
|
|
889 |
list($x2, $y2) = $p2->getLocation();
|
|
|
890 |
|
|
|
891 |
if($y1 < $y2) {
|
|
|
892 |
$y1 ^= $y2 ^= $y1 ^= $y2;
|
|
|
893 |
}
|
|
|
894 |
|
|
|
895 |
if($x2 < $x1) {
|
|
|
896 |
$x1 ^= $x2 ^= $x1 ^= $x2;
|
|
|
897 |
}
|
|
|
898 |
|
|
|
899 |
if($gradient instanceof awLinearGradient) {
|
|
|
900 |
$this->rectangleLinearGradient($gradient, new awPoint($x1, $y1), new awPoint($x2, $y2));
|
|
|
901 |
} else {
|
|
|
902 |
awImage::drawError("Class GDGradientDriver: This gradient is not supported by rectangles.");
|
|
|
903 |
}
|
|
|
904 |
|
|
|
905 |
}
|
|
|
906 |
|
|
|
907 |
public function filledPolygon(awGradient $gradient, awPolygon $polygon) {
|
|
|
908 |
|
|
|
909 |
if($gradient instanceof awLinearGradient) {
|
|
|
910 |
$this->polygonLinearGradient($gradient, $polygon);
|
|
|
911 |
} else {
|
|
|
912 |
awImage::drawError("Class GDGradientDriver: This gradient is not supported by polygons.");
|
|
|
913 |
}
|
|
|
914 |
|
|
|
915 |
}
|
|
|
916 |
|
|
|
917 |
protected function rectangleLinearGradient(awLinearGradient $gradient, awPoint $p1, awPoint $p2) {
|
|
|
918 |
|
|
|
919 |
list($x1, $y1) = $p1->getLocation();
|
|
|
920 |
list($x2, $y2) = $p2->getLocation();
|
|
|
921 |
|
|
|
922 |
if($y1 - $y2 > 0) {
|
|
|
923 |
|
|
|
924 |
if($gradient->angle === 0) {
|
|
|
925 |
|
|
|
926 |
$this->init($gradient, $y1 - $y2);
|
|
|
927 |
|
|
|
928 |
for($i = $y2; $i <= $y1; $i++) {
|
|
|
929 |
|
|
|
930 |
$color = $this->color($i - $y2);
|
|
|
931 |
|
|
|
932 |
$p1 = new awPoint($x1, $i);
|
|
|
933 |
$p2 = new awPoint($x2, $i);
|
|
|
934 |
|
|
|
935 |
$this->driver->filledRectangle($color, new awLine($p1, $p2));
|
|
|
936 |
|
|
|
937 |
unset($color);
|
|
|
938 |
|
|
|
939 |
}
|
|
|
940 |
|
|
|
941 |
} else if($gradient->angle === 90) {
|
|
|
942 |
|
|
|
943 |
$this->init($gradient, $x2 - $x1);
|
|
|
944 |
|
|
|
945 |
for($i = $x1; $i <= $x2; $i++) {
|
|
|
946 |
|
|
|
947 |
$color = $this->color($i - $x1);
|
|
|
948 |
|
|
|
949 |
$p1 = new awPoint($i, $y2);
|
|
|
950 |
$p2 = new awPoint($i, $y1);
|
|
|
951 |
|
|
|
952 |
$this->driver->filledRectangle($color, new awLine($p1, $p2));
|
|
|
953 |
|
|
|
954 |
unset($color);
|
|
|
955 |
|
|
|
956 |
}
|
|
|
957 |
|
|
|
958 |
}
|
|
|
959 |
|
|
|
960 |
}
|
|
|
961 |
|
|
|
962 |
}
|
|
|
963 |
|
|
|
964 |
public function filledEllipse(awGradient $gradient, $x1, $y1, $x2, $y2) {
|
|
|
965 |
|
|
|
966 |
if($y1 < $y2) {
|
|
|
967 |
$y1 ^= $y2 ^= $y1 ^= $y2;
|
|
|
968 |
}
|
|
|
969 |
|
|
|
970 |
if($x2 < $x1) {
|
|
|
971 |
$x1 ^= $x2 ^= $x1 ^= $x2;
|
|
|
972 |
}
|
|
|
973 |
|
|
|
974 |
if($gradient instanceof awRadialGradient) {
|
|
|
975 |
$this->ellipseRadialGradient($gradient, $x1, $y1, $x2, $y2);
|
|
|
976 |
} else if($gradient instanceof awLinearGradient) {
|
|
|
977 |
$this->ellipseLinearGradient($gradient, $x1, $y1, $x2, $y2);
|
|
|
978 |
} else {
|
|
|
979 |
awImage::drawError("Class GDGradientDriver: This gradient is not supported by ellipses.");
|
|
|
980 |
}
|
|
|
981 |
|
|
|
982 |
}
|
|
|
983 |
|
|
|
984 |
protected function ellipseRadialGradient(awGradient $gradient, $x1, $y1, $x2, $y2) {
|
|
|
985 |
|
|
|
986 |
if($y1 - $y2 > 0) {
|
|
|
987 |
|
|
|
988 |
if($y1 - $y2 != $x2 - $x1) {
|
|
|
989 |
awImage::drawError("Class GDGradientDriver: Radial gradients are only implemented on circle, not ellipses.");
|
|
|
990 |
}
|
|
|
991 |
|
|
|
992 |
$c = new awPoint($x1 + ($x2 - $x1) / 2, $y1 + ($y2 - $y1) / 2);
|
|
|
993 |
$r = ($x2 - $x1) / 2;
|
|
|
994 |
$ok = array();
|
|
|
995 |
|
|
|
996 |
// Init gradient
|
|
|
997 |
$this->init($gradient, $r);
|
|
|
998 |
|
|
|
999 |
for($i = 0; $i <= $r; $i += 0.45) {
|
|
|
1000 |
|
|
|
1001 |
$p = ceil((2 * M_PI * $i));
|
|
|
1002 |
|
|
|
1003 |
if($p > 0) {
|
|
|
1004 |
$interval = 360 / $p;
|
|
|
1005 |
} else {
|
|
|
1006 |
$interval = 360;
|
|
|
1007 |
}
|
|
|
1008 |
|
|
|
1009 |
$color = $this->color($i);
|
|
|
1010 |
|
|
|
1011 |
for($j = 0; $j < 360; $j += $interval) {
|
|
|
1012 |
|
|
|
1013 |
$rad = ($j / 360) * (2 * M_PI);
|
|
|
1014 |
|
|
|
1015 |
$x = round($i * cos($rad));
|
|
|
1016 |
$y = round($i * sin($rad));
|
|
|
1017 |
|
|
|
1018 |
$l = sqrt($x * $x + $y * $y);
|
|
|
1019 |
|
|
|
1020 |
if($l <= $r) {
|
|
|
1021 |
|
|
|
1022 |
if(
|
|
|
1023 |
array_key_exists((int)$x, $ok) === FALSE or
|
|
|
1024 |
array_key_exists((int)$y, $ok[$x]) === FALSE
|
|
|
1025 |
) {
|
|
|
1026 |
|
|
|
1027 |
// Print the point
|
|
|
1028 |
$this->driver->point($color, new awPoint($c->x + $x, $c->y + $y));
|
|
|
1029 |
|
|
|
1030 |
$ok[(int)$x][(int)$y] = TRUE;
|
|
|
1031 |
|
|
|
1032 |
}
|
|
|
1033 |
|
|
|
1034 |
}
|
|
|
1035 |
|
|
|
1036 |
}
|
|
|
1037 |
|
|
|
1038 |
unset($color);
|
|
|
1039 |
|
|
|
1040 |
}
|
|
|
1041 |
|
|
|
1042 |
}
|
|
|
1043 |
|
|
|
1044 |
}
|
|
|
1045 |
|
|
|
1046 |
protected function ellipseLinearGradient(awGradient $gradient, $x1, $y1, $x2, $y2) {
|
|
|
1047 |
|
|
|
1048 |
// Gauche->droite : 90°
|
|
|
1049 |
|
|
|
1050 |
if($y1 - $y2 > 0) {
|
|
|
1051 |
|
|
|
1052 |
if($y1 - $y2 != $x2 - $x1) {
|
|
|
1053 |
awImage::drawError("Class GDGradientDriver: Linear gradients are only implemented on circle, not ellipses.");
|
|
|
1054 |
}
|
|
|
1055 |
|
|
|
1056 |
$r = ($x2 - $x1) / 2;
|
|
|
1057 |
|
|
|
1058 |
// Init gradient
|
|
|
1059 |
$this->init($gradient, $x2 - $x1);
|
|
|
1060 |
|
|
|
1061 |
for($i = -$r; $i <= $r; $i++) {
|
|
|
1062 |
|
|
|
1063 |
$h = sin(acos($i / $r)) * $r;
|
|
|
1064 |
|
|
|
1065 |
$color = $this->color($i + $r);
|
|
|
1066 |
|
|
|
1067 |
if($gradient->angle === 90) {
|
|
|
1068 |
|
|
|
1069 |
// Print the line
|
|
|
1070 |
$p1 = new awPoint(
|
|
|
1071 |
$x1 + $i + $r,
|
|
|
1072 |
round(max($y2 + $r - $h + 1, $y2))
|
|
|
1073 |
);
|
|
|
1074 |
|
|
|
1075 |
$p2 = new awPoint(
|
|
|
1076 |
$x1 + $i + $r,
|
|
|
1077 |
round(min($y1 - $r + $h - 1, $y1))
|
|
|
1078 |
);
|
|
|
1079 |
|
|
|
1080 |
} else {
|
|
|
1081 |
|
|
|
1082 |
// Print the line
|
|
|
1083 |
$p1 = new awPoint(
|
|
|
1084 |
round(max($x1 + $r - $h + 1, $x1)),
|
|
|
1085 |
$y2 + $i + $r
|
|
|
1086 |
);
|
|
|
1087 |
|
|
|
1088 |
$p2 = new awPoint(
|
|
|
1089 |
round(min($x2 - $r + $h - 1, $x2)),
|
|
|
1090 |
$y2 + $i + $r
|
|
|
1091 |
);
|
|
|
1092 |
|
|
|
1093 |
}
|
|
|
1094 |
|
|
|
1095 |
$this->driver->filledRectangle($color, new awLine($p1, $p2));
|
|
|
1096 |
|
|
|
1097 |
unset($color);
|
|
|
1098 |
|
|
|
1099 |
}
|
|
|
1100 |
|
|
|
1101 |
}
|
|
|
1102 |
|
|
|
1103 |
}
|
|
|
1104 |
|
|
|
1105 |
protected function polygonLinearGradient(awLinearGradient $gradient, awPolygon $polygon) {
|
|
|
1106 |
|
|
|
1107 |
$count = $polygon->count();
|
|
|
1108 |
|
|
|
1109 |
if($count >= 4) {
|
|
|
1110 |
|
|
|
1111 |
$left = $polygon->get(0);
|
|
|
1112 |
$right = $polygon->get($count - 1);
|
|
|
1113 |
|
|
|
1114 |
if($gradient->angle === 0) {
|
|
|
1115 |
|
|
|
1116 |
// Get polygon maximum and minimum
|
|
|
1117 |
$offset = $polygon->get(0);
|
|
|
1118 |
$max = $min = $offset->y;
|
|
|
1119 |
for($i = 1; $i < $count - 1; $i++) {
|
|
|
1120 |
$offset = $polygon->get($i);
|
|
|
1121 |
$max = max($max, $offset->y);
|
|
|
1122 |
$min = min($min, $offset->y);
|
|
|
1123 |
}
|
|
|
1124 |
|
|
|
1125 |
$this->init($gradient, $max - $min);
|
|
|
1126 |
|
|
|
1127 |
$prev = $polygon->get(1);
|
|
|
1128 |
|
|
|
1129 |
$sum = 0;
|
|
|
1130 |
|
|
|
1131 |
for($i = 2; $i < $count - 1; $i++) {
|
|
|
1132 |
|
|
|
1133 |
$current = $polygon->get($i);
|
|
|
1134 |
|
|
|
1135 |
$interval = 1;
|
|
|
1136 |
|
|
|
1137 |
if($i !== $count - 2) {
|
|
|
1138 |
$current->x -= $interval;
|
|
|
1139 |
}
|
|
|
1140 |
|
|
|
1141 |
if($current->x - $prev->x > 0) {
|
|
|
1142 |
|
|
|
1143 |
// Draw rectangle
|
|
|
1144 |
$x1 = $prev->x;
|
|
|
1145 |
$x2 = $current->x;
|
|
|
1146 |
$y1 = max($prev->y, $current->y);
|
|
|
1147 |
$y2 = $left->y;
|
|
|
1148 |
|
|
|
1149 |
$gradient = new awLinearGradient(
|
|
|
1150 |
$this->color($max - $min - ($y2 - $y1)),
|
|
|
1151 |
$this->color($max - $min),
|
|
|
1152 |
|
|
|
1153 |
);
|
|
|
1154 |
|
|
|
1155 |
if($y1 > $y2) {
|
|
|
1156 |
$y2 = $y1;
|
|
|
1157 |
}
|
|
|
1158 |
|
|
|
1159 |
$this->driver->filledRectangle(
|
|
|
1160 |
$gradient,
|
|
|
1161 |
awLine::build($x1, $y1, $x2, $y2)
|
|
|
1162 |
);
|
|
|
1163 |
|
|
|
1164 |
$top = ($prev->y < $current->y) ? $current : $prev;
|
|
|
1165 |
$bottom = ($prev->y >= $current->y) ? $current : $prev;
|
|
|
1166 |
|
|
|
1167 |
$gradient = new awLinearGradient(
|
|
|
1168 |
$this->color($bottom->y - $min),
|
|
|
1169 |
$this->color($max - $min - ($y2 - $y1)),
|
|
|
1170 |
|
|
|
1171 |
);
|
|
|
1172 |
|
|
|
1173 |
|
|
|
1174 |
$gradientDriver = new awGDGradientDriver($this->driver);
|
|
|
1175 |
$gradientDriver->drawFilledFlatTriangle(
|
|
|
1176 |
$gradient,
|
|
|
1177 |
new awPoint($prev->x, min($prev->y, $current->y)),
|
|
|
1178 |
$top,
|
|
|
1179 |
new awPoint($current->x, min($prev->y, $current->y))
|
|
|
1180 |
);
|
|
|
1181 |
unset($gradientDriver);
|
|
|
1182 |
|
|
|
1183 |
$sum += $current->x - $prev->x;
|
|
|
1184 |
|
|
|
1185 |
}
|
|
|
1186 |
|
|
|
1187 |
$prev = $current;
|
|
|
1188 |
$prev->x += $interval;
|
|
|
1189 |
|
|
|
1190 |
}
|
|
|
1191 |
|
|
|
1192 |
} else if($gradient->angle === 90) {
|
|
|
1193 |
|
|
|
1194 |
$width = $right->x - $left->x;
|
|
|
1195 |
$this->init($gradient, $width);
|
|
|
1196 |
|
|
|
1197 |
$pos = 1;
|
|
|
1198 |
$next = $polygon->get($pos++);
|
|
|
1199 |
|
|
|
1200 |
$this->next($polygon, $pos, $prev, $next);
|
|
|
1201 |
|
|
|
1202 |
for($i = 0; $i <= $width; $i++) {
|
|
|
1203 |
|
|
|
1204 |
$x = $left->x + $i;
|
|
|
1205 |
|
|
|
1206 |
$y1 = round($prev->y + ($next->y - $prev->y) * (($i + $left->x - $prev->x) / ($next->x - $prev->x)));
|
|
|
1207 |
$y2 = $left->y;
|
|
|
1208 |
|
|
|
1209 |
// Draw line
|
|
|
1210 |
$color = $this->color($i);
|
|
|
1211 |
// YaPB : PHP does not handle alpha on lines
|
|
|
1212 |
$this->driver->filledRectangle($color, awLine::build($x, $y1, $x, $y2));
|
|
|
1213 |
|
|
|
1214 |
unset($color);
|
|
|
1215 |
|
|
|
1216 |
// Jump to next point
|
|
|
1217 |
if($next->x == $i + $left->x) {
|
|
|
1218 |
|
|
|
1219 |
$this->next($polygon, $pos, $prev, $next);
|
|
|
1220 |
|
|
|
1221 |
}
|
|
|
1222 |
|
|
|
1223 |
}
|
|
|
1224 |
|
|
|
1225 |
}
|
|
|
1226 |
|
|
|
1227 |
} else if($count === 3) {
|
|
|
1228 |
$this->drawFilledTriangle(
|
|
|
1229 |
$gradient,
|
|
|
1230 |
$polygon
|
|
|
1231 |
);
|
|
|
1232 |
}
|
|
|
1233 |
|
|
|
1234 |
}
|
|
|
1235 |
|
|
|
1236 |
private function next($polygon, &$pos, &$prev, &$next) {
|
|
|
1237 |
|
|
|
1238 |
do {
|
|
|
1239 |
$prev = $next;
|
|
|
1240 |
$next = $polygon->get($pos++);
|
|
|
1241 |
}
|
|
|
1242 |
while($next->x - $prev->x == 0 and $pos < $polygon->count());
|
|
|
1243 |
|
|
|
1244 |
}
|
|
|
1245 |
|
|
|
1246 |
/**
|
|
|
1247 |
* Start colors
|
|
|
1248 |
*
|
|
|
1249 |
* @var int
|
|
|
1250 |
*/
|
|
|
1251 |
private $r1, $g1, $b1, $a1;
|
|
|
1252 |
|
|
|
1253 |
/**
|
|
|
1254 |
* Stop colors
|
|
|
1255 |
*
|
|
|
1256 |
* @var int
|
|
|
1257 |
*/
|
|
|
1258 |
private $r2, $g2, $b2, $a2;
|
|
|
1259 |
|
|
|
1260 |
/**
|
|
|
1261 |
* Gradient size in pixels
|
|
|
1262 |
*
|
|
|
1263 |
* @var int
|
|
|
1264 |
*/
|
|
|
1265 |
private $size;
|
|
|
1266 |
|
|
|
1267 |
|
|
|
1268 |
private function init(awGradient $gradient, $size) {
|
|
|
1269 |
|
|
|
1270 |
list(
|
|
|
1271 |
$this->r1, $this->g1, $this->b1, $this->a1
|
|
|
1272 |
) = $gradient->from->rgba();
|
|
|
1273 |
|
|
|
1274 |
list(
|
|
|
1275 |
$this->r2, $this->g2, $this->b2, $this->a2
|
|
|
1276 |
) = $gradient->to->rgba();
|
|
|
1277 |
|
|
|
1278 |
$this->size = $size;
|
|
|
1279 |
}
|
|
|
1280 |
|
|
|
1281 |
private function color($pos) {
|
|
|
1282 |
|
|
|
1283 |
return new awColor(
|
|
|
1284 |
$this->getRed($pos),
|
|
|
1285 |
$this->getGreen($pos),
|
|
|
1286 |
$this->getBlue($pos),
|
|
|
1287 |
$this->getAlpha($pos)
|
|
|
1288 |
);
|
|
|
1289 |
|
|
|
1290 |
}
|
|
|
1291 |
|
|
|
1292 |
|
|
|
1293 |
private function getRed($pos) {
|
|
|
1294 |
if((float)$this->size !== 0.0) {
|
|
|
1295 |
return (int)round($this->r1 + ($pos / $this->size) * ($this->r2 - $this->r1));
|
|
|
1296 |
} else {
|
|
|
1297 |
return 0;
|
|
|
1298 |
}
|
|
|
1299 |
}
|
|
|
1300 |
|
|
|
1301 |
private function getGreen($pos) {
|
|
|
1302 |
if((float)$this->size !== 0.0) {
|
|
|
1303 |
return (int)round($this->g1 + ($pos / $this->size) * ($this->g2 - $this->g1));
|
|
|
1304 |
} else {
|
|
|
1305 |
return 0;
|
|
|
1306 |
}
|
|
|
1307 |
}
|
|
|
1308 |
|
|
|
1309 |
private function getBlue($pos) {
|
|
|
1310 |
if((float)$this->size !== 0.0) {
|
|
|
1311 |
return (int)round($this->b1 + ($pos / $this->size) * ($this->b2 - $this->b1));
|
|
|
1312 |
} else {
|
|
|
1313 |
return 0;
|
|
|
1314 |
}
|
|
|
1315 |
}
|
|
|
1316 |
|
|
|
1317 |
private function getAlpha($pos) {
|
|
|
1318 |
if((float)$this->size !== 0.0) {
|
|
|
1319 |
return (int)round(($this->a1 + ($pos / $this->size) * ($this->a2 - $this->a1)) / 127 * 100);
|
|
|
1320 |
} else {
|
|
|
1321 |
return 0;
|
|
|
1322 |
}
|
|
|
1323 |
}
|
|
|
1324 |
|
|
|
1325 |
}
|
|
|
1326 |
|
|
|
1327 |
registerClass('GDGradientDriver');
|
|
|
1328 |
|
|
|
1329 |
/*
|
|
|
1330 |
* Check for GD2
|
|
|
1331 |
*/
|
|
|
1332 |
if(function_exists('imagecreatetruecolor') === FALSE) {
|
|
|
1333 |
awImage::drawErrorFile('missing-gd2');
|
|
|
1334 |
}
|
|
|
1335 |
|
|
|
1336 |
?>
|