/**
* 加水印
* @param string $text 要添加水印的文字
* @param int $size 字体大小
* @param int $opcity 水印透明度
* @param int $degree 要旋转的角度
* @param const $position 要添加的位置
* @param int $x 水平位移
* @param int $y 垂直位移
* @return bool 成功返回true，失败返回false
*/
public function addWaterMark($text, $size, $opacity = 1, $degree = 0, $position = self::Center, $x = 0, $y = 0)
{
$width = $this->getWidth();
$height = $this->getHeight();
$black = NewPixelWand('black');
$none = NewPixelWand('none');
$textWand = NewMagickWand();
MagickNewImage($textWand, $width, $height, $none);
$textDrawWand = NewDrawingWand();
DrawSetTextEncoding($textDrawWand, 'UTF-8');
DrawSetFont($textDrawWand, '/Library/Fonts/Hei.ttf');
DrawSetFontWeight($textDrawWand, 900);
DrawSetFillColor($textDrawWand, $black);
DrawSetFontSize($textDrawWand, $size);
if ($x == 0 && $y == 0) {
DrawSetGravity($textDrawWand, constant($position));
}
DrawSetFillAlpha($textDrawWand, $opacity);
$degree = intval($degree);
if ($degree !== 0) {
DrawRotate($textDrawWand, $degree);
}
DrawAnnotation($textDrawWand, $x, $y, $text);
MagickDrawImage($textWand, $textDrawWand);
return MagickCompositeImage(self::$resource, $textWand, MW_OverCompositeOp, $x, $y);
}
public function setFont($para = array())
{
$textColor = "#000000";
$textWeight = 120;
$textSize = 12;
$textFont = "simsun.ttc";
$textAlpha = 1;
$textAlign = 1;
$textStrokeColor = "#FFFFFF";
$textStrokeWidth = 1;
$textStrokeOpacity = 0.2;
if (count($para) > 1) {
extract($para, EXTR_OVERWRITE);
}
$imgFont = NewDrawingWand();
$fontColor = $this->getColor($textColor);
DrawSetTextEncoding($imgFont, "UTF-8");
DrawSetFont($imgFont, $textFont);
DrawSetFontWeight($imgFont, $textWeight);
DrawSetFillColor($imgFont, $fontColor);
DrawSetFontSize($imgFont, $textSize);
DrawSetGravity($imgFont, $textAlign);
DrawSetFillAlpha($imgFont, $textAlpha);
if ($textStrokeWidth > 0 && $textStrokeOpacity > 0) {
$strokeColor = $this->getColor($textStrokeColor);
DrawSetStrokeColor($imgFont, $strokeColor);
DrawSetStrokeWidth($imgFont, $textStrokeWidth);
DrawSetStrokeOpacity($imgFont, $textStrokeOpacity);
}
if (WandHasException($imgFont)) {
$this->Error($imgFont);
}
$this->destoryWand($fontColor);
return $imgFont;
}
