public function cropImg()
{
//图片裁剪数据
$params = I('post.');
//裁剪参数
if (!isset($params) && empty($params)) {
$this->error('参数错误！');
}
//头像目录地址
$path = 'Uploads/Avatar/';
//裁减后的地址
$crop_path = $path . session('user_auth')['username'] . '_crop.jpg';
//最终保存的地址
$final_path = $path . session('user_auth')['username'] . '.jpg';
//临时图片地址-- 刚才上传的头像地址
$pic_path = $path . get_avatar_name() . '.jpg';
//实例化裁剪类
$Think_img = new ThinkImage(THINKIMAGE_GD);
//裁剪原图得到选中区域
$Think_img->open($pic_path)->crop($params['w'], $params['h'], $params['x'], $params['y'])->save($crop_path);
//生成缩略图
$Think_img->open($crop_path)->thumb(150, 150, 1)->save($final_path);
//删除上传的图片和临时目录
unlink($crop_path);
unlink($pic_path);
//更新个人信息中的avatar的值为1 说明已经上传过头像
$data = array();
$data['uid'] = session('user_auth')['uid'];
$data['avatar'] = 'Uploads/Avatar/' . session('user_auth')['username'] . '.jpg';
M('User')->save($data);
$this->success('上传头像成功');
}
public function save()
{
$params = I('post.');
$tmp_url = $params['src'];
//得到真实图片的的路径
$old_real_url = str_replace('_tmp.', '.', $tmp_url);
$old_thumb_url = str_replace('Picture', 'Thumb', $old_real_url);
$file_name = pathinfo($old_real_url)['filename'];
$new_name = time() . rand(100000, 999999);
//给原图和缩略图都重新命名--避免缓存
$rand = rand();
$new_pic_path = str_replace($file_name, $new_name, $old_real_url);
$new_thumb_path = str_replace('Picture', 'Thumb', $new_pic_path);
//更新图片表(Pic)---更新缩略图表(Thumb)
$map = array('path' => $old_real_url);
M('Pic')->where($map)->setField('path', $new_pic_path);
$map = array('path' => $old_thumb_url);
M('Thumb')->where($map)->setField('path', $new_thumb_path);
//实例化裁剪类
$Think_img = new ThinkImage(THINKIMAGE_GD);
// 如果这些参数存在说明有裁减图片
if (isset($params['w']) && isset($params['h']) && isset($params['x']) && isset($params['y'])) {
//裁剪原图得到选中区域
$Think_img->open($tmp_url)->crop($params['w'], $params['h'], $params['x'], $params['y'])->save($tmp_url);
}
//同时重新生成缩略图
$Think_img->open($tmp_url)->thumb(150, 150, 3)->save($new_thumb_path);
// 复制一份缓存图片保存为原图，然后删除缓存图片
copy($tmp_url, $new_pic_path);
unlink($tmp_url);
$this->success('保存成功');
}
public function cropImg()
{
//图片裁剪数据
$params = I('post.');
//裁剪参数
if (!isset($params) && empty($params)) {
$this->error('参数错误！');
}
//头像目录地址
$path = './Avatar/';
//要保存的图片
$real_path = $path . $_SESSION['user']['id'] . 'avatar.jpg';
//临时图片地址
$pic_path = $path . 'temp.jpg';
//实例化裁剪类
$Think_img = new ThinkImage(THINKIMAGE_GD);
//裁剪原图得到选中区域
$Think_img->open($pic_path)->crop($params['w'], $params['h'], $params['x'], $params['y'])->save($real_path);
//生成缩略图
$Think_img->open($real_path)->thumb(250, 250, 1)->save($path . $_SESSION['user']['id'] . 'avatar_250.jpg');
$Think_img->open($real_path)->thumb(150, 150, 1)->save($path . $_SESSION['user']['id'] . 'avatar_150.jpg');
$Think_img->open($real_path)->thumb(40, 40, 1)->save($path . $_SESSION['user']['id'] . 'avatar_40.jpg');
//把头像传入数据表
//判断有无头像
$_POST['uid'] = $_SESSION['user']['id'];
$_POST['head_img_middle'] = $_SESSION['user']['id'] . 'avatar_150.jpg';
$_POST['head_img_small'] = $_SESSION['user']['id'] . 'avatar_40.jpg';
$_POST['head_img_big'] = $_SESSION['user']['id'] . 'avatar_250.jpg';
$headimg = $this->isUploadHead($_SESSION['user']['id']);
if (!$headimg) {
$headimg = D('head_img');
$headimg->create();
$headimg->add();
$this->success('上传头像成功');
} else {
$_POST['id'] = $headimg['id'];
$headimg = D('head_img');
$headimg->create();
$headimg->save();
$this->success('修改头像成功');
}
}