/**
* 获取文字的描绘对象
* @param string $font 字体名称或字体路径
* @param integer $size 字体大小
* @param string | ImagickPixel $color 字颜色
* @param float $opacity 文字的透明度，取值范围0（全透明）-1（不透明）
* @param string | ImagickPixel $underColor 字的背景颜色
* @return ImagickDraw | false
*/
public function getDrawForText($font = null, $size = 8, $color = 'transparent', $opacity = 0.58, $underColor = null)
{
$draw = new ImagickDraw();
// $draw->setGravity(Imagick::GRAVITY_CENTER);
// 特别注意这里了，如果这里设置了文字水印的位置的话，那么在其写入别到文件时就会起作用，且其他设置的坐标都没有用
if ($font !== null) {
if (is_file($font)) {
$draw->setfont($font);
} else {
$this->_error = '字体文件不存在';
return false;
}
}
$draw->setfontsize($size);
$draw->setFillColor($color);
$draw->setfillopacity($opacity);
// 貌似和这个是一样的： $draw->setFillAlpha(0.5);
if ($underColor !== null) {
$draw->settextundercolor($underColor);
}
// $draw->settextalignment(2); //文字对齐方式，2为居中
return $draw;
}
/**
* Watermars the image with the viewer's IP
* @return boolean
*/
public function watermark()
{
$text = $_SERVER['REMOTE_ADDR'];
$font = $_SERVER['DOCUMENT_ROOT'] . '/pixel.ttf';
$image = $this->getImagick();
$width = $image->getimagewidth();
$watermark = new Imagick();
$watermark->newImage(1000, 1000, new ImagickPixel('none'));
$draw = new ImagickDraw();
$draw->setFont($font);
$draw->setfontsize(30);
$draw->setFillColor('gray');
$draw->setFillOpacity(0.3);
$watermark->annotateimage($draw, 100, 200, -45, $text);
$watermark->annotateimage($draw, 550, 550, 45, $text);
$this->iMagick = $image->textureimage($watermark);
return true;
}
function psychedelicFontGif($name = 'Danack')
{
set_time_limit(3000);
$aniGif = new \Imagick();
$aniGif->setFormat("gif");
$maxFrames = 11;
$scale = 0.25;
for ($frame = 0; $frame < $maxFrames; $frame++) {
$draw = new \ImagickDraw();
$draw->setStrokeOpacity(1);
$draw->setFont("../fonts/CANDY.TTF");
$draw->setfontsize(150 * $scale);
for ($strokeWidth = 25; $strokeWidth > 0; $strokeWidth--) {
$hue = intval(fmod($frame * 360 / $maxFrames + 170 + $strokeWidth * 360 / 25, 360));
$color = "hsl({$hue}, 255, 128)";
$draw->setStrokeColor($color);
$draw->setFillColor($color);
$draw->setStrokeWidth($strokeWidth * 3 * $scale);
$draw->annotation(60 * $scale, 165 * $scale, $name);
}
$draw->setStrokeColor('none');
$draw->setFillColor('black');
$draw->setStrokeWidth(0);
$draw->annotation(60 * $scale, 165 * $scale, $name);
//Create an image object which the draw commands can be rendered into
$imagick = new \Imagick();
$imagick->newImage(650 * $scale, 230 * $scale, "#eee");
$imagick->setImageFormat("png");
//Render the draw commands in the ImagickDraw object
//into the image.
$imagick->drawImage($draw);
$imagick->setImageDelay(5);
$aniGif->addImage($imagick);
$imagick->destroy();
}
$aniGif->setImageIterations(0);
//loop forever
$aniGif->deconstructImages();
header("Content-Type: image/gif");
echo $aniGif->getImagesBlob();
}
/**
*
* 文字水印
* @param unknown_type $data
*/
public function addWaterText($data)
{
$draw = new ImagickDraw();
$this->ImagickPixel = new ImagickPixel();
$draw->clear();
$draw->setfont($data['font']);
$draw->setfontsize($data['size']);
$this->ImagickPixel->setcolor($data['color']);
$draw->setfillcolor($data['color']);
$draw->setfillalpha($data['alpha']);
$draw->settextalignment(imagick::GRAVITY_NORTHWEST);
//左对齐
$draw->annotation($data['pos_x'], $data['pos_y'], $data['literal']);
$this->srcImg_source->drawimage($draw);
$draw->destroy();
return $this->srcImg_source;
}