function addText($source_name, $string, $save_name = "", $font_height = 30, $text_align = "center", $color = "#ff0000", $font = "Arial", $Antialias = true)
{
$resource = NewMagickWand();
$drw_wnd = NewDrawingWand();
MagickReadImage($resource, $source_name);
//MagickResizeImage( $resource, 160, 120 ,MW_BoxFilter,1);
DrawSetFillColor($drw_wnd, $color);
DrawSetFontSize($drw_wnd, $font_height);
DrawSetFont($drw_wnd, $font);
DrawSetTextAntialias($drw_wnd, $Antialias);
$src_image_x = MagickGetImageWidth($resource);
$src_image_y = MagickGetImageHeight($resource);
$string_width = MagickGetStringWidth($resource, $drw_wnd, $string, FALSE);
$string_height = MagickGetStringHeight($resource, $drw_wnd, $string, FALSE);
switch ($text_align) {
case "center":
$text_x = $src_image_x / 2 - $string_width / 2;
$text_y = $src_image_y / 2 - $string_height / 2;
break;
default:
break;
}
DrawAnnotation($drw_wnd, $text_x, $text_y, $string);
MagickDrawImage($resource, $drw_wnd);
if ($save_name) {
MagickWriteImage($resource, $save_name);
} else {
header('Content-Type: image/jpeg');
MagickEchoImageBlob($resource);
}
DestroyDrawingWand($drw_wnd);
DestroymagickWand($resource);
}
/**
* 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 $imgFont;
}
function createWaterMark($src_image = "")
{
if (!IsMagickWand($src_image)) {
$src_image = NewMagickWand();
MagickReadImage($src_image, $this->src_image_name);
}
if (!$src_image) {
return false;
}
$src_image_w = MagickGetImageWidth($src_image);
$src_image_h = MagickGetImageHeight($src_image);
if ($this->wm_image_name) {
$wm_image_info = $this->getInfo($this->wm_image_name);
if (!$wm_image_info) {
return false;
}
$wm_image = NewMagickWand();
MagickReadImage($wm_image, $this->wm_image_name);
$wm_image_w = MagickGetImageWidth($wm_image);
$wm_image_h = MagickGetImageHeight($wm_image);
$temp_wm_image = $this->getPos($src_image_w, $src_image_h, $this->wm_image_pos, $wm_image);
$wm_image_x = $temp_wm_image["dest_x"];
$wm_image_y = $temp_wm_image["dest_y"];
$opacity0 = MagickGetQuantumRange();
$opacity100 = 0;
$opacitypercent = $this->wm_image_transition;
$opacity = $opacity0 - $opacity0 * $opacitypercent / 100;
if ($opacity > $opacity0) {
$opacity = $opacity0;
} elseif ($opacity < 0) {
$opacity = 0;
}
MagickSetImageIndex($wm_image, 0);
MagickSetImageType($wm_image, MW_TrueColorMatteType);
MagickEvaluateImage($wm_image, MW_SubtractEvaluateOperator, $opacity, MW_OpacityChannel);
MagickCompositeImage($src_image, $wm_image, MW_OverCompositeOp, $wm_image_x, $wm_image_y);
}
if ($this->wm_text) {
$this->wm_text = $this->wm_text;
$temp_wm_text = $this->getPos($src_image_w, $src_image_h, $this->wm_image_pos);
$wm_text_x = $temp_wm_text["dest_x"];
$wm_text_y = $temp_wm_text["dest_y"];
$drawing_wand = NewDrawingWand();
if ($this->wm_text_font != "") {
DrawSetFont($drawing_wand, $this->wm_text_font);
}
DrawSetFontSize($drawing_wand, $this->wm_text_size);
switch ($this->wm_image_pos) {
case 0:
DrawSetGravity($drawing_wand, MW_CenterGravity);
break;
case 1:
DrawSetGravity($drawing_wand, MW_NorthWestGravity);
break;
case 2:
DrawSetGravity($drawing_wand, MW_NorthEastGravity);
break;
case 3:
DrawSetGravity($drawing_wand, MW_SouthEastGravity);
break;
case 4:
DrawSetGravity($drawing_wand, MW_SouthWestGravity);
break;
case 5:
DrawSetGravity($drawing_wand, MW_NorthGravity);
break;
case 6:
DrawSetGravity($drawing_wand, MW_EastGravity);
break;
case 7:
DrawSetGravity($drawing_wand, MW_SouthGravity);
break;
case 8:
DrawSetGravity($drawing_wand, MW_WestGravity);
break;
default:
DrawSetGravity($drawing_wand, MW_CenterGravity);
break;
}
$pixel_wand = NewPixelWand();
if (preg_match("/([a-f0-9][a-f0-9])([a-f0-9][a-f0-9])([a-f0-9][a-f0-9])/i", $this->wm_text_color, $color)) {
$red = hexdec($color[1]);
$green = hexdec($color[2]);
$blue = hexdec($color[3]);
PixelSetColor($pixel_wand, "rgb({$red},{$green},{$blue})");
} else {
PixelSetColor($pixel_wand, "rgb(255,255,255)");
}
DrawSetFillColor($drawing_wand, $pixel_wand);
MagickAnnotateImage($src_image, $drawing_wand, 0, 0, $this->wm_angle, $this->wm_text);
}
return $src_image;
}
