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);
}
/**
* Function addText() performs several operations on the DrawingWand
* $drw_wnd:
* 1) sets the fill color (the color in which shapes, text, etc. will be
* drawn) from the PixelWand (or Imagemagick color string) $pxl_wnd with
* DrawSetFillColor()
* 2) sets the font size of text to be drawn to $font_size, using
* DrawSetFontSize()
* 3) sets the position where text will be drawn with DrawSetGravity();
* position is set to MW_CenterGravity by default, which automatically
* centers text horizontally and vertically
* 4) sets text to be drawn later to $text, which will be drawn at
* coordinate ($x, $y), (relative to the position indicated by
* $gravity), with DrawAnnotation()
*
* If no font is set prior to this function being called, the MagickWand API
* uses the default font (seems to be Arial).
*
* @param resource DrawingWand resource
* @param mixed PixelWand resource or imagemagick color string
* @param float desired text font size
* @param float string to be drawn
* @param int the desired text gravity, indicating the desired text
* position; must be a MagickWand API GravityType
* @param int x ordinate, relative to the chosen text gravity where
* text will be drawn
* @param int y ordinate, relative to the chosen text gravity where
* text will be drawn
*
* @return void No return value, as all functions used return void.
*/
function addText($drw_wnd, $pxl_wnd, $font_size, $text, $gravity = MW_CenterGravity, $x = 0, $y = 0)
{
DrawSetFillColor($drw_wnd, $pxl_wnd);
DrawSetFontSize($drw_wnd, $font_size);
DrawSetGravity($drw_wnd, $gravity);
DrawAnnotation($drw_wnd, $x, $y, $text);
}
/**
* Function addText() performs several operations on the DrawingWand
* $drw_wnd:
* 1) sets the fill color (the color in which shapes, text, etc. will be
* drawn) from the PixelWand (or Imagemagick color string) $pxl_wnd with
* DrawSetFillColor()
* 2) sets the font size of text to be drawn to $font_size, using
* DrawSetFontSize()
* 3) sets the position where text will be drawn with DrawSetGravity();
* position is set to MW_CenterGravity by default, which automatically
* centers text horizontally and vertically
* 4) sets text to be drawn later to $text, which will be drawn at
* coordinate ($x, $y), (relative to the position indicated by
* $gravity), with DrawAnnotation()
*
* If no font is set prior to this function being called, the MagickWand API
* uses the default font (seems to be Arial).
*
* @param resource DrawingWand resource
* @param mixed PixelWand resource or imagemagick color string
* @param float desired text font size
* @param float string to be drawn
* @param int the desired text gravity, indicating the desired text
* position; must be a MagickWand API GravityType
* @param int x ordinate, relative to the chosen text gravity where
* text will be drawn
* @param int y ordinate, relative to the chosen text gravity where
* text will be drawn
*
* @return void No return value, as all functions used return void.
*/
function addText($drw_wnd, $pxl_wnd, $font_size, $text, $gravity = MW_CenterGravity, $x = 0, $y = 0)
{
/* Set the color used to draw shapes and text with $drw_wnd to $pxl_wnd's
color
*/
DrawSetFillColor($drw_wnd, $pxl_wnd);
/* Set the text font size used by $drw_wnd to $font_size */
DrawSetFontSize($drw_wnd, $font_size);
/* Set $drw_wnd text gravity (automatic text positioning setting), to
$gravity
*/
DrawSetGravity($drw_wnd, $gravity);
/* Add a command to the $drw_wnd DrawingWand to draw the $text string at
point ($x, $y) (relative to $drw_wnd's gravity setting).
*/
DrawAnnotation($drw_wnd, $x, $y, $text);
}
