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This commit is contained in:
wangjinlei
2024-12-31 10:28:40 +08:00
parent 145b0ab8a5
commit a54a837670
1179 changed files with 2686 additions and 230376 deletions
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122
vendor/topthink/think-image/src/Image.php vendored
View File

@@ -140,6 +140,31 @@ class Image
return $this;
}
/**
* http输出图片
* @return void
*/
public function output()
{
$type = $this->info['type'];
header("content-type: image/{$type}");
switch ($type) {
case 'png':
imagepng($this->im);
break;
case 'gif':
imagegif($this->im);
break;
case 'jpeg':
imagejpeg($this->im);
break;
case 'wbmp':
imagewbmp($this->im);
break;
}
exit;
}
/**
* 返回图像宽度
* @return int 图像宽度
@@ -257,16 +282,17 @@ class Image
public function crop($w, $h, $x = 0, $y = 0, $width = null, $height = null)
{
//设置保存尺寸
empty($width) && $width = $w;
empty($height) && $height = $h;
do {
//创建新图像
$img = imagecreatetruecolor($width, $height);
$img = imagecreatetruecolor((int) $width, (int) $height);
// 调整默认颜色
$color = imagecolorallocate($img, 255, 255, 255);
imagefill($img, 0, 0, $color);
//裁剪
imagecopyresampled($img, $this->im, 0, 0, $x, $y, $width, $height, $w, $h);
imagecopyresampled($img, $this->im, 0, 0, (int) $x, (int) $y, (int) $width, (int) $height, $w, $h);
imagedestroy($this->im); //销毁原图
//设置新图像
$this->im = $img;
@@ -302,18 +328,18 @@ class Image
$scale = min($width / $w, $height / $h);
//设置缩略图的坐标及宽度和高度
$x = $y = 0;
$width = $w * $scale;
$height = $h * $scale;
$width = (int) ($w * $scale);
$height = (int) ($h * $scale);
break;
/* 居中裁剪 */
case self::THUMB_CENTER:
//计算缩放比例
$scale = max($width / $w, $height / $h);
//设置缩略图的坐标及宽度和高度
$w = $width / $scale;
$h = $height / $scale;
$x = ($this->info['width'] - $w) / 2;
$y = ($this->info['height'] - $h) / 2;
$w = (int) ($width / $scale);
$h = (int) ($height / $scale);
$x = (int) (($this->info['width'] - $w) / 2);
$y = (int) (($this->info['height'] - $h) / 2);
break;
/* 左上角裁剪 */
case self::THUMB_NORTHWEST:
@@ -321,18 +347,18 @@ class Image
$scale = max($width / $w, $height / $h);
//设置缩略图的坐标及宽度和高度
$x = $y = 0;
$w = $width / $scale;
$h = $height / $scale;
$w = (int) ($width / $scale);
$h = (int) ($height / $scale);
break;
/* 右下角裁剪 */
case self::THUMB_SOUTHEAST:
//计算缩放比例
$scale = max($width / $w, $height / $h);
//设置缩略图的坐标及宽度和高度
$w = $width / $scale;
$h = $height / $scale;
$x = $this->info['width'] - $w;
$y = $this->info['height'] - $h;
$w = (int) ($width / $scale);
$h = (int) ($height / $scale);
$x = (int) ($this->info['width'] - $w);
$y = (int) ($this->info['height'] - $h);
break;
/* 填充 */
case self::THUMB_FILLED:
@@ -343,12 +369,12 @@ class Image
$scale = min($width / $w, $height / $h);
}
//设置缩略图的坐标及宽度和高度
$neww = $w * $scale;
$newh = $h * $scale;
$neww = (int) ($w * $scale);
$newh = (int) ($h * $scale);
$x = $this->info['width'] - $w;
$y = $this->info['height'] - $h;
$posx = ($width - $w * $scale) / 2;
$posy = ($height - $h * $scale) / 2;
$posx = (int) (($width - $w * $scale) / 2);
$posy = (int) (($height - $h * $scale) / 2);
do {
//创建新图像
$img = imagecreatetruecolor($width, $height);
@@ -377,9 +403,9 @@ class Image
/**
* 添加水印
*
* @param string $source 水印图片路径
* @param int $locate 水印位置
* @param int $alpha 透明度
* @param string $source 水印图片路径
* @param int|array $locate 水印位置
* @param int $alpha 透明度
* @return $this
*/
public function water($source, $locate = self::WATER_SOUTHEAST, $alpha = 100)
@@ -457,10 +483,10 @@ class Image
// 调整默认颜色
$color = imagecolorallocate($src, 255, 255, 255);
imagefill($src, 0, 0, $color);
imagecopy($src, $this->im, 0, 0, $x, $y, $info[0], $info[1]);
imagecopy($src, $this->im, 0, 0, (int) $x, (int) $y, $info[0], $info[1]);
imagecopy($src, $water, 0, 0, 0, 0, $info[0], $info[1]);
imagecopymerge($this->im, $src, $x, $y, 0, 0, $info[0], $info[1], $alpha);
//销毁零时图片资源
imagecopymerge($this->im, $src, (int) $x, (int) $y, 0, 0, $info[0], $info[1], $alpha);
//销毁临时图片资源
imagedestroy($src);
} while (!empty($this->gif) && $this->gifNext());
//销毁水印资源
@@ -471,13 +497,13 @@ class Image
/**
* 图像添加文字
*
* @param string $text 添加的文字
* @param string $font 字体路径
* @param integer $size 字号
* @param string $color 文字颜色
* @param int $locate 文字写入位置
* @param integer $offset 文字相对当前位置的偏移量
* @param integer $angle 文字倾斜角度
* @param string $text 添加的文字
* @param string $font 字体路径
* @param integer $size 字号
* @param string $color 文字颜色
* @param int|array $locate 文字写入位置
* @param integer|array $offset 文字相对当前位置的偏移量
* @param integer $angle 文字倾斜角度
*
* @return $this
* @throws ImageException
@@ -559,6 +585,24 @@ class Image
$offset = intval($offset);
$ox = $oy = $offset;
}
/* 图片黑白检测 */
if ("auto" == $color) {
//X方向采集宽度：单英文字符占据宽度约为字体大小/1.6，单中文字符占据宽度约为字体大小*4/3；Y方向采集宽度：英文字符高度约为字体大小，中文会高一些。
//使用保守宽度，以免在纯英文情况下采集区域超出图像范围，并且精度完全可以满足本功能。
$pickX = intval(mb_strwidth($text) * ($size / 1.6));
$pickY = $size;
$brightness = 0;
for ($i = $x + $ox; $i < $pickX + $x + $ox; $i++) {
//根据文字基线确定要进行遍历的像素
for ($j = $y + $oy - $pickY; $j < $y + $oy; $j++) {
//基线修正
$brightness += self::getBrightnessOfPixel($i, $j);
}
}
$color = $brightness / ($pickX * $pickY) > 127 ? '#00000000' : '#ffffffff';
}
/* 设置颜色 */
if (is_string($color) && 0 === strpos($color, '#')) {
$color = str_split(substr($color, 1), 2);
@@ -577,6 +621,22 @@ class Image
return $this;
}
/**
* 获取图片指定像素点的亮度值
*/
private function getBrightnessOfPixel($x, $y)
{
$rgb = imagecolorat($this->im, $x, $y);
$r = ($rgb >> 16) & 0xFF;
$g = ($rgb >> 8) & 0xFF;
$b = $rgb & 0xFF;
//红绿蓝能量不同，亮度不同，对应系数也不同（参考https://www.w3.org/TR/AERT/#color-contrast）
$brightness = intval($r * 0.299 + $g * 0.587 + $b * 0.114);
return $brightness;
}
/**
* 切换到GIF的下一帧并保存当前帧
*/

3
vendor/topthink/think-image/src/image/Exception.php vendored
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@@ -11,8 +11,7 @@
namespace think\image;
class Exception extends \RuntimeException
{
}
}

3
vendor/topthink/think-image/src/image/gif/Decoder.php vendored
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@@ -11,7 +11,6 @@
namespace think\image\gif;
class Decoder
{
public $GIF_buffer = [];
@@ -204,4 +203,4 @@ class Decoder
{
return ($this->GIF_delays);
}
}
}

6
vendor/topthink/think-image/src/image/gif/Encoder.php vendored
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@@ -48,7 +48,7 @@ class Encoder
for ($i = 0; $i < count($GIF_src); $i++) {
if (strtolower($GIF_mod) == "url") {
$this->BUF[] = fread(fopen($GIF_src[$i], "rb"), filesize($GIF_src[$i]));
} else if (strtolower($GIF_mod) == "bin") {
} elseif (strtolower($GIF_mod) == "bin") {
$this->BUF[] = $GIF_src[$i];
} else {
printf("%s: %s ( %s )!", $this->VER, $this->ERR['ERR02'], $GIF_mod);
@@ -74,7 +74,7 @@ class Encoder
}
$this->addHeader();
for ($i = 0; $i < count($this->BUF); $i++) {
$this->addFrames($i, $GIF_dly[$i]);
isset($GIF_dly[$i]) && $this->addFrames($i, $GIF_dly[$i]);
}
$this->addFooter();
}
@@ -219,4 +219,4 @@ class Encoder
{
return ($this->GIF);
}
}
}

2
vendor/topthink/think-image/src/image/gif/Gif.php vendored
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@@ -85,4 +85,4 @@ class Gif
$gif = new Encoder($this->frames, $this->delays, 0, 2, 0, 0, 0, 'bin');
file_put_contents($pathname, $gif->getAnimation());
}
}
}