用C实现PHP扩展 Image_Tool 图片常用处理工具类的使用

一、类文档说明

class Image_Tool{    /**     * 构造Image_Tool对象     * @param string|array $img_data     * $img_data可以为图片的路径     */ function __construct($img_data=""); /**  * 添加文字注解，或用于文字水印  * @access public  * @param string $txt UTF8编码的文本  * @param float $opacity 设置透明度  * @param constant $gravity   * 设置文字摆放位置:  * NorthWest,North,NorthEast,West, Center,East,SouthWest,South,SouthEast,Static  * @param array $font 字体数组可以设置如下属性:  * name,常量,字体名称，如果需要添加中文注解，请使用中文字体，否则中文会显示乱码。     *        支持的字体：SimSun(宋体,默认)、SimKai(楷体)、SimHei(正黑)、MicroHei(微米黑)、Arial     * weight,字体宽度,int     * size，字体大小,int     * color,字体颜色,例如："blue", "#0000ff", "rgb(0,0,255)"等，默认为"black";     * @return boolean  */ function annotate($txt, $opacity, $gravity, array $font); /**  * 将对象的数据重新初始化,用于多次重用一个Image_Tool对象  * @access public  * @return void  */ function clean(); *  * 图片合成，可以进行多张图片的合成，也可以做图片水印用  * @access public  * @param int $src_img 合成的目标图片，可以为ImageTool对象或图片二进制数据  * @param int $x 合成在画布的X坐标  * @param string $y 合成在画布的Y坐标  * @return boolean  *  function composite($src_img, $x, $y); /**  * 返回错误信息  * @access public  * @return string  */ function errmsg(); /**  * 返回错误编号  * @access public  * @return int  */ function errcode(); /**  * 进行图片处理操作  * @access public  * @param string $format  * @param boolean $display  * @return boolean|string 若设置$display为true，返回void，否则返回图片二进制数据。失败时返回false  */ function exec($format, $display=false); /**  * 水平翻转  * @access public  * @return boolean  */ function flipH(); /**  * 垂直翻转  * @access public  * @return boolean  */ function flipV(); /**  * 取得图片属性  * @access public  * @return array|boolean 错误返回false  */ function getImageAttr(); /**  * 去噪点,改善图片质量，通常用于exec之前  * @access public  * @return boolean  */ function improve(); /**  * 缩放图片,只指定width或者height时,将进行等比缩放  * @access public  * @param int $width  * @param int $height  * @param boolean $thumbnail 是否清除图片附加信息  * @return boolean  */ function resize($width, $height, $thumbnail=true); /**  * 按比例缩放.1为原大小  * @access public  * @param float $ratio  * @param boolean $thumbnail 是否清除图片附加信息  * @return boolean  */ function resizeRatio($ratio, $thumbnail=true); /**  * 顺时针旋转图片  * @access public  * @param int $degree 旋转度数（0 - 360）  * @return boolean  */ function rotate($degree=90); /**  * 设置要处理的图片二进制数据  * @access public  * @param string $img_blob  * @return boolean  */ function setData($img_blob);}

三、扩展实现
1.php_fetch_url.h

/*  +----------------------------------------------------------------------+  | PHP Version 5                                                        |  +----------------------------------------------------------------------+  | Copyright (c) 1997-2012 The PHP Group                                |  +----------------------------------------------------------------------+  | This source file is subject to version 3.01 of the PHP license,      |  | that is bundled with this package in the file LICENSE, and is        |  | available through the world-wide-web at the following url:           |  | http://www.php.net/license/3_01.txt                                  |  | If you did not receive a copy of the PHP license and are unable to   |  | obtain it through the world-wide-web, please send a note to          |  | [email protected] so we can mail you a copy immediately.               |  +----------------------------------------------------------------------+  | Author:                                                              |  +----------------------------------------------------------------------+*//* $Id$ */#ifndef PHP_IMAGE_TOOL_H#define PHP_IMAGE_TOOL_Hextern zend_module_entry image_tool_module_entry;#define phpext_image_tool_ptr &image_tool_module_entry#ifdef PHP_WIN32# define PHP_IMAGE_TOOL_API __declspec(dllexport)#elif defined(__GNUC__) && __GNUC__ >= 4# define PHP_IMAGE_TOOL_API __attribute__ ((visibility("default")))#else# define PHP_IMAGE_TOOL_API#endif#ifdef ZTS#include "TSRM.h"#endif#define FETCH_THIS Z_OBJCE_P(getThis()), getThis()#define IMAGETOOL_MAGICKWAND_RSRC_NAME "MagickWand"#define IMAGETOOL_PIXELWAND_RSRC_NAME "PixelWand"#define IMAGETOOL_NORTHWEST 1#define IMAGETOOL_NORTH     2#define IMAGETOOL_NORTHEAST 3#define IMAGETOOL_WEST      4#define IMAGETOOL_CENTER    5#define IMAGETOOL_EAST      6#define IMAGETOOL_SOUTHWEST 7#define IMAGETOOL_SOUTH     8#define IMAGETOOL_SOUTHEAST 9#define IMAGETOOL_STATIC    10#define IMAGETOOL_TOP_LEFT      1#define IMAGETOOL_TOP_CENTER    2#define IMAGETOOL_TOP_RIGHT     3#define IMAGETOOL_CENTER_LEFT   4#define IMAGETOOL_CENTER_CENTER 5#define IMAGETOOL_CENTER_RIGHT  6#define IMAGETOOL_BOTTOM_LEFT   7#define IMAGETOOL_BOTTOM_CENTER 8#define IMAGETOOL_BOTTOM_RIGHT  9#define GET_MAGICK_WAND(zval, magick_wand) zval = zend_read_property(FETCH_THIS, ZEND_STRL("magick_wand"), 0 TSRMLS_CC);\        ZEND_FETCH_RESOURCE_NO_RETURN(magick_wand, MagickWand*, &zval, -1, IMAGETOOL_MAGICKWAND_RSRC_NAME, le_image_wand);PHP_MINIT_FUNCTION(image_tool);PHP_MSHUTDOWN_FUNCTION(image_tool);PHP_RINIT_FUNCTION(image_tool);PHP_RSHUTDOWN_FUNCTION(image_tool);PHP_MINFO_FUNCTION(image_tool);#ifdef ZTS#define IMAGE_TOOL_G(v) TSRMG(image_tool_globals_id, zend_image_tool_globals *, v)#else#define IMAGE_TOOL_G(v) (image_tool_globals.v)#endif#endif /* PHP_IMAGE_TOOL_H *<a style="color:transparent">本@文来源gao($daima.com搞@代@#码(网5</a><strong>搞gaodaima代码</strong>/

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