导读:
!--?php ** *基本图片处理,用于完成图片缩入,水印添加 *当水印图超过目标图片尺寸时,水印图能自动适应目标图片而缩小 *水印图可以...
PHP多功能图片处理类
- setSrcImg("img/test.jpg");
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class ThumbHandler
- {
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var $dst_img;
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var $h_src;
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var $h_dst;
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var $h_mask;
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var $img_create_quality = 100;
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var $img_display_quality = 80;
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var $img_scale = 0;
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var $src_w = 0;
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var $src_h = 0;
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var $dst_w = 0;
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var $dst_h = 0;
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var $fill_w;
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var $fill_h;
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var $copy_w;
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var $copy_h;
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var $src_x = 0;
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var $src_y = 0;
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var $start_x;
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var $start_y;
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var $mask_word;
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var $mask_img;
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var $mask_pos_x = 0;
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var $mask_pos_y = 0;
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var $mask_offset_x = 5;
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var $mask_offset_y = 5;
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var $font_w;
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var $font_h;
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var $mask_w;
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var $mask_h;
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var $mask_font_color = "#ffffff";
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var $mask_font = 2;
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var $font_size;
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var $mask_position = 0;
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var $mask_img_pct = 50;
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var $mask_txt_pct = 50;
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var $img_border_size = 0;
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var $img_border_color;
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var $_flip_x=0;
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var $_flip_y=0;
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var $cut_type=0;
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-
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var $img_type;
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-
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var $all_type = array(
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"jpg" => array("output"=>"imagejpeg"),
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"gif" => array("output"=>"imagegif"),
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"png" => array("output"=>"imagepng"),
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"wbmp" => array("output"=>"image2wbmp"),
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"jpeg" => array("output"=>"imagejpeg"));
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function ThumbHandler()
- {
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$this->mask_font_color = "#ffffff";
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$this->font = 2;
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$this->font_size = 12;
- }
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-
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function getImgWidth($src)
- {
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return imagesx($src);
- }
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function getImgHeight($src)
- {
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return imagesy($src);
- }
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function setSrcImg($src_img, $img_type=null)
- {
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if(!file_exists($src_img))
- {
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die("图片不存在");
- }
-
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if(!emptyempty($img_type))
- {
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$this->img_type = $img_type;
- }
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else
- {
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$this->img_type = $this->_getImgType($src_img);
- }
-
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$this->_checkValid($this->img_type);
-
-
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$src = '';
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if(function_exists("file_get_contents"))
- {
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$src = file_get_contents($src_img);
- }
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else
- {
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$handle = fopen ($src_img, "r");
-
while (!feof ($handle))
- {
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$src .= fgets($fd, 4096);
- }
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fclose ($handle);
- }
-
if(emptyempty($src))
- {
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die("图片源为空");
- }
-
$this->h_src = @ImageCreateFromString($src);
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$this->src_w = $this->getImgWidth($this->h_src);
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$this->src_h = $this->getImgHeight($this->h_src);
- }
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-
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function setDstImg($dst_img)
- {
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$arr = explode('/',$dst_img);
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$last = array_pop($arr);
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$path = implode('/',$arr);
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$this->_mkdirs($path);
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$this->dst_img = $dst_img;
- }
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function setImgDisplayQuality($n)
- {
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$this->img_display_quality = (int)$n;
- }
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function setImgCreateQuality($n)
- {
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$this->img_create_quality = (int)$n;
- }
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function setMaskWord($word)
- {
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$this->mask_word .= $word;
- }
-
-
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-
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function setMaskFontColor($color="#ffffff")
- {
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$this->mask_font_color = $color;
- }
-
-
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-
-
-
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function setMaskFont($font=2)
- {
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if(!is_numeric($font) && !file_exists($font))
- {
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die("字体文件不存在");
- }
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$this->font = $font;
- }
-
-
-
-
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function setMaskFontSize($size = "12")
- {
-
$this->font_size = $size;
- }
-
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function setMaskImg($img)
- {
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$this->mask_img = $img;
- }
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function setMaskOffsetX($x)
- {
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$this->mask_offset_x = (int)$x;
- }
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function setMaskOffsetY($y)
- {
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$this->mask_offset_y = (int)$y;
- }
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function setMaskPosition($position=0)
- {
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$this->mask_position = (int)$position;
- }
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function setMaskImgPct($n)
- {
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$this->mask_img_pct = (int)$n;
- }
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function setMaskTxtPct($n)
- {
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$this->mask_txt_pct = (int)$n;
- }
-
-
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function setDstImgBorder($size=1, $color="#000000")
- {
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$this->img_border_size = (int)$size;
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$this->img_border_color = $color;
- }
-
-
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function flipH()
- {
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$this->_flip_x++;
- }
-
-
-
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function flipV()
- {
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$this->_flip_y++;
- }
-
-
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function setCutType($type)
- {
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$this->cut_type = (int)$type;
- }
-
-
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-
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function setRectangleCut($width, $height)
- {
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$this->fill_w = (int)$width;
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$this->fill_h = (int)$height;
- }
-
-
-
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function setSrcCutPosition($x, $y)
- {
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$this->src_x = (int)$x;
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$this->src_y = (int)$y;
- }
-
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function createImg($a, $b=null)
- {
-
$num = func_num_args();
-
if(1 == $num)
- {
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$r = (int)$a;
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if($r < 1)
- {
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die("图片缩放比例不得小于1");
- }
-
$this->img_scale = $r;
-
$this->_setNewImgSize($r);
- }
-
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if(2 == $num)
- {
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$w = (int)$a;
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$h = (int)$b;
-
if(0 == $w)
- {
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die("目标宽度不能为0");
- }
-
if(0 == $h)
- {
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die("目标高度不能为0");
- }
-
$this->_setNewImgSize($w, $h);
- }
-
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if($this->_flip_x%2!=0)
- {
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$this->_flipH($this->h_src);
- }
-
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if($this->_flip_y%2!=0)
- {
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$this->_flipV($this->h_src);
- }
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$this->_createMask();
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$this->_output();
-
-
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if(imagedestroy($this->h_src) && imagedestroy($this->h_dst))
- {
- Return true;
- }
-
else
- {
- Return false;
- }
- }
-
-
-
-
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function _createMask()
- {
-
if($this->mask_word)
- {
-
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$this->_setFontInfo();
-
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if($this->_isFull())
- {
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die("水印文字过大");
- }
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else
- {
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$this->h_dst = imagecreatetruecolor($this->dst_w, $this->dst_h);
-
$white = ImageColorAllocate($this->h_dst,255,255,255);
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imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);
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$this->_drawBorder();
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imagecopyresampled( $this->h_dst, $this->h_src,
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$this->start_x, $this->start_y,
-
$this->src_x, $this->src_y,
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$this->fill_w, $this->fill_h,
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$this->copy_w, $this->copy_h);
-
$this->_createMaskWord($this->h_dst);
- }
- }
-
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if($this->mask_img)
- {
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$this->_loadMaskImg();
-
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if($this->_isFull())
- {
-
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$this->_createMaskImg($this->h_src);
-
$this->h_dst = imagecreatetruecolor($this->dst_w, $this->dst_h);
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$white = ImageColorAllocate($this->h_dst,255,255,255);
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imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);
-
$this->_drawBorder();
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imagecopyresampled( $this->h_dst, $this->h_src,
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$this->start_x, $this->start_y,
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$this->src_x, $this->src_y,
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$this->fill_w, $this->start_y,
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$this->copy_w, $this->copy_h);
- }
-
else
- {
-
-
$this->h_dst = imagecreatetruecolor($this->dst_w, $this->dst_h);
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$white = ImageColorAllocate($this->h_dst,255,255,255);
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imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);
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$this->_drawBorder();
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imagecopyresampled( $this->h_dst, $this->h_src,
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$this->start_x, $this->start_y,
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$this->src_x, $this->src_y,
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$this->fill_w, $this->fill_h,
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$this->copy_w, $this->copy_h);
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$this->_createMaskImg($this->h_dst);
- }
- }
-
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if(emptyempty($this->mask_word) && emptyempty($this->mask_img))
- {
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$this->h_dst = imagecreatetruecolor($this->dst_w, $this->dst_h);
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$white = ImageColorAllocate($this->h_dst,255,255,255);
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imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);
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$this->_drawBorder();
-
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imagecopyresampled( $this->h_dst, $this->h_src,
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$this->start_x, $this->start_y,
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$this->src_x, $this->src_y,
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$this->fill_w, $this->fill_h,
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$this->copy_w, $this->copy_h);
- }
- }
-
-
-
-
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function _drawBorder()
- {
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if(!emptyempty($this->img_border_size))
- {
-
$c = $this->_parseColor($this->img_border_color);
-
$color = ImageColorAllocate($this->h_src,$c[0], $c[1], $c[2]);
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imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$color);
- }
- }
-
-
-
-
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function _createMaskWord($src)
- {
-
$this->_countMaskPos();
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$this->_checkMaskValid();
-
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$c = $this->_parseColor($this->mask_font_color);
-
$color = imagecolorallocatealpha($src, $c[0], $c[1], $c[2], $this->mask_txt_pct);
-
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if(is_numeric($this->font))
- {
-
imagestring($src,
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$this->font,
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$this->mask_pos_x, $this->mask_pos_y,
-
$this->mask_word,
-
$color);
- }
-
else
- {
-
imagettftext($src,
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$this->font_size, 0,
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$this->mask_pos_x, $this->mask_pos_y,
-
$color,
-
$this->font,
-
$this->mask_word);
- }
- }
-
-
-
-
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function _createMaskImg($src)
- {
-
$this->_countMaskPos();
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$this->_checkMaskValid();
-
imagecopymerge($src,
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$this->h_mask,
-
$this->mask_pos_x ,$this->mask_pos_y,
- 0, 0,
-
$this->mask_w, $this->mask_h,
-
$this->mask_img_pct);
-
-
imagedestroy($this->h_mask);
- }
-
-
-
-
-
function _loadMaskImg()
- {
-
$mask_type = $this->_getImgType($this->mask_img);
-
$this->_checkValid($mask_type);
-
-
-
$src = '';
-
if(function_exists("file_get_contents"))
- {
-
$src = file_get_contents($this->mask_img);
- }
-
else
- {
-
$handle = fopen ($this->mask_img, "r");
-
while (!feof ($handle))
- {
-
$src .= fgets($fd, 4096);
- }
-
fclose ($handle);
- }
-
if(emptyempty($this->mask_img))
- {
-
die("水印图片为空");
- }
-
$this->h_mask = ImageCreateFromString($src);
-
$this->mask_w = $this->getImgWidth($this->h_mask);
-
$this->mask_h = $this->getImgHeight($this->h_mask);
- }
-
-
-
-
-
function _output()
- {
-
$img_type = $this->img_type;
-
$func_name = $this->all_type[$img_type]['output'];
-
if(function_exists($func_name))
- {
-
-
if(isset($_SERVER['HTTP_USER_AGENT']))
- {
-
$ua = strtoupper($_SERVER['HTTP_USER_AGENT']);
-
if(!preg_match('/^.*MSIE.*)$/i',$ua))
- {
-
header("Content-type:$img_type");
- }
- }
-
$func_name($this->h_dst, $this->dst_img, $this->img_display_quality);
- }
-
else
- {
- Return false;
- }
- }
-
-
-
-
-
-
-
function _parseColor($color)
- {
-
$arr = array();
-
for($ii=1; $ii<strlen function="" return="" this-="">_isFull())
- {
-
switch($this->mask_position)
- {
-
case 1:
-
-
$this->mask_pos_x = $this->mask_offset_x + $this->img_border_size;
-
$this->mask_pos_y = $this->mask_offset_y + $this->img_border_size;
-
break;
-
-
case 2:
-
-
$this->mask_pos_x = $this->mask_offset_x + $this->img_border_size;
-
$this->mask_pos_y = $this->src_h - $this->mask_h - $this->mask_offset_y;
-
break;
-
-
case 3:
-
-
$this->mask_pos_x = $this->src_w - $this->mask_w - $this->mask_offset_x;
-
$this->mask_pos_y = $this->mask_offset_y + $this->img_border_size;
-
break;
-
-
case 4:
-
-
$this->mask_pos_x = $this->src_w - $this->mask_w - $this->mask_offset_x;
-
$this->mask_pos_y = $this->src_h - $this->mask_h - $this->mask_offset_y;
-
break;
-
-
default:
-
-
$this->mask_pos_x = $this->src_w - $this->mask_w - $this->mask_offset_x;
-
$this->mask_pos_y = $this->src_h - $this->mask_h - $this->mask_offset_y;
-
break;
- }
- }
-
else
- {
-
switch($this->mask_position)
- {
-
case 1:
-
-
$this->mask_pos_x = $this->mask_offset_x + $this->img_border_size;
-
$this->mask_pos_y = $this->mask_offset_y + $this->img_border_size;
-
break;
-
-
case 2:
-
-
$this->mask_pos_x = $this->mask_offset_x + $this->img_border_size;
-
$this->mask_pos_y = $this->dst_h - $this->mask_h - $this->mask_offset_y - $this->img_border_size;
-
break;
-
-
case 3:
-
-
$this->mask_pos_x = $this->dst_w - $this->mask_w - $this->mask_offset_x - $this->img_border_size;
-
$this->mask_pos_y = $this->mask_offset_y + $this->img_border_size;
-
break;
-
-
case 4:
-
-
$this->mask_pos_x = $this->dst_w - $this->mask_w - $this->mask_offset_x - $this->img_border_size;
-
$this->mask_pos_y = $this->dst_h - $this->mask_h - $this->mask_offset_y - $this->img_border_size;
-
break;
-
-
default:
-
-
$this->mask_pos_x = $this->dst_w - $this->mask_w - $this->mask_offset_x - $this->img_border_size;
-
$this->mask_pos_y = $this->dst_h - $this->mask_h - $this->mask_offset_y - $this->img_border_size;
-
break;
- }
- }
- }
-
-
-
-
-
function _setFontInfo()
- {
-
if(is_numeric($this->font))
- {
-
$this->font_w = imagefontwidth($this->font);
-
$this->font_h = imagefontheight($this->font);
-
-
-
$word_length = strlen($this->mask_word);
-
$this->mask_w = $this->font_w*$word_length;
-
$this->mask_h = $this->font_h;
- }
-
else
- {
-
$arr = imagettfbbox ($this->font_size,0, $this->font,$this->mask_word);
-
$this->mask_w = abs($arr[0] - $arr[2]);
-
$this->mask_h = abs($arr[7] - $arr[1]);
- }
- }
-
-
-
-
-
-
-
-
function _setNewImgSize($img_w, $img_h=null)
- {
-
$num = func_num_args();
-
if(1 == $num)
- {
-
$this->img_scale = $img_w;
-
$this->fill_w = round($this->src_w * $this->img_scale / 100) - $this->img_border_size*2;
-
$this->fill_h = round($this->src_h * $this->img_scale / 100) - $this->img_border_size*2;
-
-
-
$this->src_x = 0;
-
$this->src_y = 0;
-
$this->copy_w = $this->src_w;
-
$this->copy_h = $this->src_h;
-
-
-
$this->dst_w = $this->fill_w + $this->img_border_size*2;
-
$this->dst_h = $this->fill_h + $this->img_border_size*2;
- }
-
-
if(2 == $num)
- {
-
$fill_w = (int)$img_w - $this->img_border_size*2;
-
$fill_h = (int)$img_h - $this->img_border_size*2;
-
if($fill_w < 0 || $fill_h < 0)
- {
-
die("图片边框过大,已超过了图片的宽度");
- }
-
$rate_w = $this->src_w/$fill_w;
-
$rate_h = $this->src_h/$fill_h;
-
-
switch($this->cut_type)
- {
-
case 0:
-
-
if($rate_w < 1 && $rate_h < 1)
- {
-
$this->fill_w = (int)$this->src_w;
-
$this->fill_h = (int)$this->src_h;
- }
-
else
- {
-
if($rate_w >= $rate_h)
- {
-
$this->fill_w = (int)$fill_w;
-
$this->fill_h = round($this->src_h/$rate_w);
- }
-
else
- {
-
$this->fill_w = round($this->src_w/$rate_h);
-
$this->fill_h = (int)$fill_h;
- }
- }
-
-
$this->src_x = 0;
-
$this->src_y = 0;
-
-
$this->copy_w = $this->src_w;
-
$this->copy_h = $this->src_h;
-
-
-
$this->dst_w = $this->fill_w + $this->img_border_size*2;
-
$this->dst_h = $this->fill_h + $this->img_border_size*2;
-
break;
-
-
-
case 1:
-
-
if($rate_w >= 1 && $rate_h >=1)
- {
-
if($this->src_w > $this->src_h)
- {
-
$src_x = round($this->src_w-$this->src_h)/2;
-
$this->setSrcCutPosition($src_x, 0);
-
$this->setRectangleCut($fill_h, $fill_h);
-
-
$this->copy_w = $this->src_h;
-
$this->copy_h = $this->src_h;
-
- }
-
elseif($this->src_w < $this->src_h)
- {
-
$src_y = round($this->src_h-$this->src_w)/2;
-
$this->setSrcCutPosition(0, $src_y);
-
$this->setRectangleCut($fill_w, $fill_h);
-
-
$this->copy_w = $this->src_w;
-
$this->copy_h = $this->src_w;
- }
-
else
- {
-
$this->setSrcCutPosition(0, 0);
-
$this->copy_w = $this->src_w;
-
$this->copy_h = $this->src_w;
-
$this->setRectangleCut($fill_w, $fill_h);
- }
- }
-
else
- {
-
$this->setSrcCutPosition(0, 0);
-
$this->setRectangleCut($this->src_w, $this->src_h);
-
-
$this->copy_w = $this->src_w;
-
$this->copy_h = $this->src_h;
- }
-
-
-
$this->dst_w = $this->fill_w + $this->img_border_size*2;
-
$this->dst_h = $this->fill_h + $this->img_border_size*2;
-
-
break;
-
-
-
case 2:
-
$this->copy_w = $this->fill_w;
-
$this->copy_h = $this->fill_h;
-
-
-
$this->dst_w = $this->fill_w + $this->img_border_size*2;
-
$this->dst_h = $this->fill_h + $this->img_border_size*2;
-
-
break;
-
default:
-
break;
-
- }
- }
-
-
-
$this->start_x = $this->img_border_size;
-
$this->start_y = $this->img_border_size;
- }
-
-
-
-
-
function _isFull()
- {
-
Return ( $this->mask_w + $this->mask_offset_x > $this->fill_w
-
|| $this->mask_h + $this->mask_offset_y > $this->fill_h)
- ?true:false;
- }
-
-
-
-
-
function _checkMaskValid()
- {
-
if( $this->mask_w + $this->mask_offset_x > $this->src_w
-
|| $this->mask_h + $this->mask_offset_y > $this->src_h)
- {
-
die("水印图片尺寸大于原图,请缩小水印图");
- }
- }
-
-
-
-
-
-
-
function _getImgType($file_path)
- {
-
$type_list = array("1"=>"gif","2"=>"jpg","3"=>"png","4"=>"swf","5" => "psd","6"=>"bmp","15"=>"wbmp");
-
if(file_exists($file_path))
- {
-
$img_info = @getimagesize ($file_path);
-
if(isset($type_list[$img_info[2]]))
- {
-
Return $type_list[$img_info[2]];
- }
- }
-
else
- {
-
die("文件不存在,不能取得文件类型!");
- }
- }
-
-
-
-
-
-
-
-
function _checkValid($img_type)
- {
-
if(!array_key_exists($img_type, $this->all_type))
- {
- Return false;
- }
- }
-
-
-
-
-
-
-
function _mkdirs($path)
- {
-
$adir = explode('/',$path);
-
$dirlist = '';
-
$rootdir = array_shift($adir);
-
if(($rootdir!='.'||$rootdir!='..')&&!file_exists($rootdir))
- {
-
@mkdir($rootdir);
- }
-
foreach($adir as $key=>$val)
- {
-
if($val!='.'&&$val!='..')
- {
-
$dirlist .= "/".$val;
-
$dirpath = $rootdir.$dirlist;
-
if(!file_exists($dirpath))
- {
-
@mkdir($dirpath);
-
@chmod($dirpath,0777);
- }
- }
- }
- }
-
-
-
-
-
-
-
function _flipV($src)
- {
-
$src_x = $this->getImgWidth($src);
-
$src_y = $this->getImgHeight($src);
-
-
$new_im = imagecreatetruecolor($src_x, $src_y);
-
for ($y = 0; $y < $src_y; $y++)
- {
-
imagecopy($new_im, $src, 0, $src_y - $y - 1, 0, $y, $src_x, 1);
- }
-
$this->h_src = $new_im;
- }
-
-
-
-
-
-
-
function _flipH($src)
- {
-
$src_x = $this->getImgWidth($src);
-
$src_y = $this->getImgHeight($src);
-
-
$new_im = imagecreatetruecolor($src_x, $src_y);
-
for ($x = 0; $x < $src_x; $x++)
- {
-
imagecopy($new_im, $src, $src_x - $x - 1, 0, $x, 0, 1, $src_y);
- }
-
$this->h_src = $new_im;
- }
- }
- ?>
-
- 函数描述及例子
-
- 使用实例:
-
- < ?php
-
require_once('lib/thumb.class.php');
-
-
$t = new ThumbHandler();
-
-
$t->setSrcImg("img/test.jpg");
-
$t->setDstImg("tmp/new_test.jpg");
-
$t->setMaskImg("img/test.gif");
-
$t->setMaskPosition(1);
-
$t->setMaskImgPct(80);
-
$t->setDstImgBorder(4,"#dddddd");
-
-
-
$t->createImg(300,200);
- ?>
- setSrcImg("img/test.jpg");
-
$t->setMaskWord("test");
-
$t->setDstImgBorder(10,"#dddddd");
-
-
-
$t->createImg(50);
- ?>
- setSrcImg("img/test.jpg");
-
$t->setMaskWord("test");
-
-
-
$t->createImg(200,200);
- ?>
- setSrcImg("img/test.jpg");
-
$t->setDstImg("tmp/new_test.jpg");
-
$t->setMaskWord("test");
-
-
-
$t->createImg(200,200);
- ?>
- setSrcImg("img/test.jpg");
-
-
-
$t->setMaskFont("c:/winnt/fonts/arial.ttf");
-
$t->setMaskFontSize(20);
-
$t->setMaskFontColor("#ffff00");
-
$t->setMaskWord("test3333333");
-
$t->setDstImgBorder(99,"#dddddd");
-
$t->createImg(50);
-
- ?>
- setSrcImg("img/test.jpg");
-
$t->setMaskOffsetX(55);
-
$t->setMaskOffsetY(55);
-
$t->setMaskPosition(1);
-
-
-
-
$t->setMaskFontColor("#ffff00");
-
$t->setMaskWord("test");
-
-
-
$t->createImg(50);
- ?>
- setSrcImg("img/test.jpg");
-
$t->setMaskFont("c:/winnt/fonts/simyou.ttf");
-
$t->setMaskFontSize(20);
-
$t->setMaskFontColor("#ffffff");
-
$t->setMaskTxtPct(20);
-
$t->setDstImgBorder(10,"#dddddd");
-
$text = "中文";
-
$str = mb_convert_encoding($text, "UTF-8", "gb2312");
-
$t->setMaskWord($str);
-
$t->setMaskWord("test");
-
-
-
$t->createImg(50);
-
?> strlen>