PHP classes that implement thumbnails and watermarks

/** * Picture shrinkage Water printing type * * @version 1.0; * */ Class Cls_photo { protected $waterrate = 0.2; The scale of the watermark icon on the picture protected $width = 300; Thumbnail default width protected $height = 200; Thumbnail default height protected $padding = 5; The distance from the watermark graph to the edge protected $water _mark = "./water.png"; protected $water _mark_pos = 5;//watermark Picture position (1= upper left corner, 2 = upper right corner, 3 = lower left corner, 4 = lower right corner, 5 center) Protected $watermode = 0;//0 thumbnail does not hit watermark 1 thumbnail when drawing water Protected $magick _handle;//Picture manipulation handle Protected $format = array (' jpg ', ' gif ', ' PNG ', ' jpeg '); Picture file format Qualification protected $smallpic _mode = 2;//default mode 0 is not to generate thumbnails, 1 for crop scaling, 2 for scaling 3 for scale fill mode /** * Set Picture class parameters * * @param $arg Picture parameters can be placed in the array several times as follows * @param $protected parameter values * Array ( * ' Waterrate ' =>0.2, * ' water_mark ' = './water.png ', * ' Water_mark_pos ' =>4, * ' Smallpic_mode ' =>1 * ); * @return Ture/false */ Public Function Set_args ($arg, $val = "") { $params = Array (' waterrate ', ' Water_mark ', ' water_mark_pos ', ' smallpic_mode ', ' watermode ', ' width ', ' height '); if (Is_array ($arg)) { foreach ($arg as $k = $v) { if (In_array ($k, $params)) { $this $k = $v; } } } Else { if (empty ($val)) { return false; } Else { if (In_array ($arg, $params)) { $this $arg = $val; } } } return true; } /** * Image Zoom * * @param $src _file source file path * @param $dst _file destination file path * @return thumbnail image path/false */ Public Function Scale ($src _file, $dst _file= "") { $DST _width = $this->width; $DST _height = $this->height; $mode = $this->smallpic_mode; $magic _water_handle = Newmagickwand (); if (! Magickreadimage ($magic _water_handle, $src _file)) return false; Type $srcext = Strtolower (Magickgetimageformat ($magic _water_handle)); if ($srcext = = ' bmp ') { $srcext = ' jpeg '; } if (!in_array ($srcext, $this->format)) return false; Size $src _width = magickgetimagewidth ($magic _water_handle); $src _height = magickgetimageheight ($magic _water_handle); Crop Zoom mode if ($mode = = 1) { $pos _x= $pos _y = 0;//trim Temporary position $src _widthc = $src _width;//Cut temporary width $src _HEIGHTC = $src _height;//Cut Temporary height if ($src _width/$src _height> $dst _width/$dst _height) { $src _widthc = $src _height* $dst _width/$dst _height; $pos _x = ($src _width-$src _widthc)/2; } Else { $src _HEIGHTC = $src _width* $dst _height/$dst _width; $pos _y = ($src _height-$src _heightc)/2; } Magickcropimage ($magic _water_handle, $src _widthc, $src _heightc, $pos _x, $pos _y);//Cut Because the Gif image changes after the Magickcropimage function, the canvas does not change $this->magick_handle = Newmagickwand (); Magicknewimage ($this->magick_handle, $src _widthc, $src _heightc, ' #ffffff '); Magicksetformat ($this->magick_handle, $srcext); Magickcompositeimage ($this->magick_handle, $magic _water_handle,mw_overcompositeop,0,0); Scaling Magickscaleimage ($this->magick_handle, $dst _width, $dst _height); } Proportional Zoom Mode if ($mode = = 2) { if ($src _width/$src _height> $dst _width/$dst _height) { $DST _height= $dst _width* $src _height/$src _width; } Else { $DST _width= $dst _height* $src _width/$src _height; } $this->magick_handle= $magic _water_handle;//Replacement Magickscaleimage ($this->magick_handle, $dst _width, $dst _height);//Zoom } Scale fill Mode if ($mode = = 3) { if ($src _width/$src _height> $dst _width/$dst _height) { $DST _heightc= $dst _width* $src _height/$src _width; $DST _widthc= $DST _width; } Else { $DST _widthc= $dst _height* $src _width/$src _height; $DST _heightc= $DST _height; } Magickscaleimage ($magic _water_handle, $dst _widthc, $dst _heightc);//Zoom $this->magick_handle = Newmagickwand (); Magicknewimage ($this->magick_handle, $dst _width, $dst _height, $this->smallpic_bgcolor); Magicksetformat ($this->magick_handle, $srcext); Magickcompositeimage ($this->magick_handle, $magic _water_handle,mw_overcompositeop, ($dst _width-$dst _widthc)/2 , ($dst _height-$dst _heightc)/2); } Play Watermark if ($this->watermode = = 1) { $this->set_mark (); } if (Empty ($dst _file)) { Create a temporary file $DST _file = Tempnam ($_server["Sinasrv_cache_dir"], "tmp_img"); } Magickwriteimage ($this->magick_handle, $dst _file); return $DST _file; } /** * Water Stamp * * @param $src _file The image path to be watermarked * @param $dst _file production watermark File save path, empty the production of random temporary files * @return Watermark File path/false */ Public Function Water_mark ($src _file, $dst _file= "") { $this->magick_handle = Newmagickwand (); if (! Magickreadimage ($this->magick_handle, $src _file)) return false; $this->set_mark (); if (Empty ($dst _file)) { Create a temporary file $DST _file = Tempnam ($_server["Sinasrv_cache_dir"], "tmp_img"); } Magickwriteimage ($this->magick_handle, $dst _file); return $DST _file; } /** * Internal interface * Give the picture a water stamp * */ protected function Set_mark () { Size $DST _width = magickgetimagewidth ($this->magick_handle); $DST _height = magickgetimageheight ($this->magick_handle); Working with Watermark Maps if ($this->water_mark && is_file ($this->water_mark)) { $magic _water_handle = Newmagickwand (); Magickremoveimage ($magic _water_handle); if (Magickreadimage ($magic _water_handle, $this->water_mark)) { Magickscaleimage ($magic _water_handle, $dst _width* $this->waterrate, $dst _width* $this->waterrate* Magickgetimageheight ($magic _water_handle)/magickgetimagewidth ($magic _water_handle)),//water release to the picture of 1/5 if ($this->water_mark_pos = = 1) { $left = $this->padding; $top = $this->padding; } ElseIf ($this->water_mark_pos = = 2) { $left = $dst _width-$this->padding-magickgetimagewidth ($magic _water_handle); $top = $this->padding; } ElseIf ($this->water_mark_pos = = 3) { $left = $this->padding; $top = $dst _height-$this->padding-magickgetimageheight ($magic _water_handle); } ElseIf ($this->water_mark_pos = = 4) { $left = $dst _width-$this->padding-magickgetimagewidth ($magic _water_handle); $top = $dst _height-$this->padding-magickgetimageheight ($magic _water_handle); } ElseIf ($this->water_mark_pos = = 5) { $left = ($dst _width-magickgetimagewidth ($magic _water_handle))/2; $top = ($dst _height-magickgetimageheight ($magic _water_handle))/2; } Magickcompositeimage ($this->magick_handle, $magic _water_handle,mw_overcompositeop, $left, $top); } } } } Copy Code

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