public function getImgWand($resource = "", $size = array())
{
$result = NewMagickWand();
if (count($size) == 2) {
MagickSetWandSize($result, $size[0], $size[1]);
}
if (IsMagickWand($resource)) {
$result = CloneMagickWand($resource);
} elseif (is_array($resource) && count($resource) == 3) {
MagickNewImage($result, $resource[1], $resource[2], $resource[0]);
} elseif (!empty($resource)) {
MagickReadImage($result, $resource);
}
return $result;
}
/**
* 读取图片
* @param string $image 图片路径
*/
public function setImage($image)
{
if (is_string($image)) {
$opts = array('http' => array('timeout' => 5));
$context = stream_context_create($opts);
$times = 0;
do {
self::$fd = fopen($image, 'r', $include_path = false, $context);
if (++$times >= 3) {
break;
}
} while (self::$fd === false);
MagickReadImageFile(self::$resource, self::$fd);
self::$resourcek = CloneMagickWand(self::$resource);
} else {
if (is_array($image)) {
MagickNewImage(self::$resource, $image['width'], $image['height'], $image['backgroundColor']);
MagickSetFormat(self::$resource, $image['format']);
}
}
}
/**
* Get canvas
*
* @param integer $width
* @param integer $height
* @param Asido_Color &$color
* @return Asido_TMP
* @access protected
*/
function __canvas($width, $height, &$color)
{
$t = new Asido_TMP();
$t->target = NewMagickWand();
list($r, $g, $b) = $color->get();
MagickNewImage($t->target, $width, $height, sprintf("#%02x%02x%02x", $r, $g, $b));
$t->image_width = $width;
$t->image_height = $height;
return $t;
}
function createThumb($objWidth, $objHeight, $nmw = "")
{
$srcImage = $this->src_image_name;
if (!IsMagickWand($nmw)) {
$nmw = NewMagickWand();
MagickReadImage($nmw, $srcImage);
}
$srcImageWidth = MagickGetImageWidth($nmw);
$srcImageHeight = MagickGetImageHeight($nmw);
if ($objWidth == 0 || $objHeight == 0) {
$objWidth = $srcImageWidth;
$objHeight = $srcImageHeight;
}
if ($objWidth < $objHeight) {
$mu = $srcImageWidth / $objWidth;
$objHeight = ceil($srcImageHeight / $mu);
} else {
$mu = $srcImageHeight / $objHeight;
$objWidth = ceil($srcImageWidth / $mu);
}
MagickScaleImage($nmw, $objWidth, $objHeight);
$ndw = NewDrawingWand();
DrawComposite($ndw, MW_AddCompositeOp, 0, 0, $objWidth, $objHeight, $nmw);
$res = NewMagickWand();
MagickNewImage($res, $objWidth, $objHeight);
MagickDrawImage($res, $ndw);
MagickSetImageFormat($res, MagickGetImageFormat($nmw));
return $res;
}
/**
* Function drawNewImage() creates a new image, using MagickNewImage(), of
* $width * $height area, filled with $bg_color (a PixelWand, or ImageMagick
* color string) color.
*
* It then uses MagickDrawImage() to draw the commands contained in the
* DrawingWand $drw_wnd on the newly reated image.
*
* @param resource MagickWand resource
* @param resource DrawingWand resource
* @param int width of new image
* @param int height of new image
* @param mixed PixelWand resource or imagemagick color string
* @param int Always __LINE__ (script current line number predefined
* PHP constant)
*
* @return void
*/
function drawNewImage($mgck_wnd, $drw_wnd, $width, $height, $bg_color, $line)
{
$line = 'program line ' . $line . ', function line ';
checkWandError(MagickNewImage($mgck_wnd, $width, $height, $bg_color), $mgck_wnd, $line . __LINE__);
checkWandError(MagickDrawImage($mgck_wnd, $drw_wnd), $mgck_wnd, $line . __LINE__);
}