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c4se記:さっちゃんですよ☆

.。oO(さっちゃんですよヾ(〃l _ l)ノ゙☆)

.。oO(此のblogは、主に音樂考察Programmingに分類されますよ。ヾ(〃l _ l)ノ゙♬♪♡

音樂はSoundCloud等バラバラの場所に公開中です。申し訳ないがlinkをたどるなどして探してください。

考察は現在は主に此のblogで公表中です。

programmingは、ひろくみせるものはGitHubで、個人的なものはBitBucketで開発中です。

c4se

GD (libgd) を使いPHPで画像を生成する

Programming PHP

ImageMagick素晴らしいけど、入ってなかったりするので。それにImageMagickは以前やった。
cf. ImageMagicで影付き文字を入れるRuby scriptを増強しました http://c4se.hatenablog.com/entry/2012/12/02/005226

GD module (libgd) を使って画像を生成する。GDが使へるかは、phpinfo()gd_info()を見れば判る。
cf. PHP: GD および Image 関数 - Manual http://www.php.net/manual/ja/ref.image.php

randomな四角を十個描く。

<?php
// license: Public Domain

$type = empty($_GET['type']) ? 'png' : $_GET['type'];
$image = new ArtImage(600, 600);
foreach(range(1, 10) as $i)
    $image->fillRandomRect(200);
$image->echo($type);

class ArtImage
{
    /** @type integer */
    public $width;

    /** @type integer */
    public $height;

    /** @type integer */
    private $image;

    /**
     * @param integer $width
     * @param integer $height
     */
    function __construct($width, $height)
    {
        $this->width = $width;
        $this->height = $height;
        $this->image = imagecreatetruecolor($width, $height);
        $white = imagecolorallocate($this->image, 255, 255, 255);
        imagefilledrectangle($this->image, 0, 0, $width, $height, $white);
        imagecolordeallocate($this->image, $white);
    }

    /**
     * @param integer $max_size
     */
    public function fillRandomRect($max_size)
    {
        $color = imagecolorallocate($this->image, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
        $x = mt_rand(50, $this->width - 50);
        $y = mt_rand(50, $this->height - 50);
        imagefilledrectangle($this->image, $x, $y, $x + mt_rand(1, $max_size), $y + mt_rand(1, $max_size), $color);
        imagecolordeallocate($this->image, $color);
    }

    /**
     * @param string $type
     */
    public function echo($type)
    {
        switch ($type) {
        case 'jpeg':
            $this->echoJpeg();
            break;
        case 'png':
        default:
            $this->echoPng();
        }
    }

    private function echoJpeg()
    {
        header('Content-Type: image/jpeg');
        imagejpeg($this->image, null, 95);
        imagedestroy($this->image);
    }

    private function echoPng()
    {
        header('Content-Type: image/png');
        imagepng($this->image, null, 9);
        imagedestroy($this->image);
    }
}
// vim:set et sw=4 sts=4 ff=unix:

その後

<?php
// license: Public Domain

/**
 * http://www.php.net/manual/ja/function.mb-split.php#80046
 *
 * @param string $string
 * @return array
 */
function mbStringToArray($string) {
    $strlen = mb_strlen($string);
    while ($strlen) {
        $array[] = mb_substr($string, 0, 1, 'UTF-8');
        $string = mb_substr($string, 1, $strlen, 'UTF-8');
        $strlen = mb_strlen($string);
    }
    return $array;
}

class ArtImage
{
    /**
     * @param string $path
     * @return ArtImage
     */
    public static function fromJpeg($path)
    {
        $size = getimagesize($path);
        $image = new self($size[0], $size[1]);
        $image->image = imagecreatefromjpeg($path);
        return $image;
    }

    /**
     * @param string $path
     * @return ArtImage
     */
    public static function fromPng($path)
    {
        $size = getimagesize($path);
        $image = new self($size[0], $size[1]);
        $image->image = imagecreatefrompng($path);
        return $image;
    }

    /** @type integer */
    public $width;

    /** @type integer */
    public $height;

    /** @type integer */
    public $image;

    /**
     * @param integer $width
     * @param integer $height
     */
    function __construct($width, $height)
    {
        $this->width = $width;
        $this->height = $height;
        $this->image = imagecreatetruecolor($width, $height);
        $white = imagecolorallocate($this->image, 255, 255, 255);
        imagefilledrectangle($this->image, 0, 0, $width, $height, $white);
        imagecolordeallocate($this->image, $white);
    }

    /**
     * @param integer $x
     * @param integer $y
     * @param integer $width
     * @param integer $height
     * @param integer $red
     * @param integer $green
     * @param integer $blue
     */
    public function fillRect($x, $y, $width, $height, $red, $green, $blue) {
        $color = imagecolorallocate($this->image, $red, $green, $blue);
        imagefilledrectangle($this->image,
            $x, $y, $x + $width, $y + $height,
            $color);
        imagecolordeallocate($this->image, $color);
    }

    /**
     * @param integer $max_size
     */
    public function fillRandomRect($max_size)
    {
        $x = mt_rand(1, $this->width - 1);
        $y = mt_rand(1, $this->height - 1);
        $width = mt_rand(1, $max_size);
        $height = mt_rand(1, $max_size);
        $red = mt_rand(0, 255);
        $green = mt_rand(0, 255);
        $blue = mt_rand(0, 255);
        $this->fillRect($x, $y, $width, $height, $red, $green, $blue);
    }

    /**
     * @param string $text
     * @param integer $size
     * @param integer $x
     * @param integer $y
     * @param integer $red
     * @param integer $green
     * @param integer $blue
     * @param string $font_path
     */
    public function fillTextUp($text, $size, $x, $y, $red, $green, $blue, $font_path)
    {
        $color = imagecolorallocate($this->image, $red, $green, $blue);
        $y -= 6;
        foreach(mbStringToArray($text) as $char) {
            $box = imagettfbbox($size, 0, $font_path, $char);
            $y += $box[2] + 6;
            imagettftext($this->image, $size, 0, $x, $y, $color, $font_path, $char);
        }
        imagecolordeallocate($this->image, $color);
    }

    /**
     * @param ArtImage $image
     * @param integer $x
     * @param integer $y
     */
    public function drawImage($image, $x, $y)
    {
        imagecopy($this->image, $image->image,
            $x, $y,
            0, 0, $image->width, $image->height);
    }

    /**
     * @param float $deg
     */
    public function rotate($deg)
    {
        $transparent = imagecolorallocatealpha($this->image, 0, 0, 0, 127);
        $image = imagerotate($this->image, $deg, $transparent);
        imagecolordeallocate($this->image, $transparent);
        $this->image = $image;
        $this->width = imagesx($this->image);
        $this->height = imagesy($this->image);
    }

    /**
     * @param float $ratio_x
     * @param float $ratio_y
     */
    public function scale($ratio_x, $ratio_y)
    {
        $image = new ArtImage($this->width * $ratio_x, $this->height * $ratio_y);
        imagecopyresampled($image->image, $this->image,
            0, 0, 0, 0,
            $image->width, $image->height, $this->width, $this->height);
        $this->image = $image->image;
        $this->width = $image->width;
        $this->height = $image->height;
    }

    public function echoJpeg()
    {
        header('Content-Type: image/jpeg');
        imagejpeg($this->image, null, 95);
        imagedestroy($this->image);
    }

    public function echoPng()
    {
        header('Content-Type: image/png');
        imagepng($this->image, null, 9);
        imagedestroy($this->image);
    }

    public function echoWebp()
    {
        header('Content-Type: image/webp');
        imagewebp($this->image, null);
        imagedestroy($this->image);
    }
}
// vim:set et sw=4 sts=4 ff=unix:
<?php
require_once 'lib/ArtImage.php';

$image = ArtImage::fromPng(__DIR__ . '/img/756078151.png');
$fukidashi = ArtImage::fromPng(__DIR__ . '/img/fukidashi.png');
$image->scale(0.43, 0.43);
$image->drawImage($fukidashi, 80, 30);
$image->fillTextUp('ももんがに', 10, 145, 50, 0, 0, 0, __DIR__ . '/font/TakaoExGothic.ttf');
$image->fillTextUp('救いは無い', 10, 125, 50, 0, 0, 0, __DIR__ . '/font/TakaoExGothic.ttf');
$image->echoPng();
// vim:set et sw=4 sts=4 ff=unix:

ももんがに救いは無い(〃l _ l)