/**
* 对本地图片做缩略图处理
* @param string $path
* @param array $server_meta
* @return array
*/
private function makeThumbnail($path, $server_meta)
{
$rt = [];
if (isset($server_meta['server_root_path'])) {
$root = $server_meta['server_root_path'];
$img_path = $root . "/" . $path;
if (is_file($img_path) && is_readable($img_path)) {
try {
c_lib()->load('image');
$img = new Image(Image::IMAGE_GD, $img_path);
$img_w = $img->width();
$img_h = $img->height();
$x = $img_w / $img_h;
//创建高清图
if ($img_w > image_hd_width()) {
$img->thumb(image_hd_width(), image_hd_width() / $x, Image::IMAGE_THUMB_SCALE);
$t_path = "hd/" . dirname($path);
$this->createPath($root . "/" . $t_path);
$img->save($root . "/hd/" . $path);
$rt['pic_hd_path'] = "hd/" . $path;
$rt['pic_hd_width'] = $img->width();
$rt['pic_hd_height'] = $img->height();
} else {
$rt['pic_hd_path'] = $path;
}
//创建显示图
if ($img_w > image_display_width()) {
$img->thumb(image_display_width(), image_display_width() / $x, Image::IMAGE_THUMB_SCALE);
$t_path = "display/" . dirname($path);
$this->createPath($root . "/" . $t_path);
$img->save($root . "/display/" . $path);
$rt['pic_display_path'] = "display/" . $path;
$rt['pic_display_width'] = $img->width();
$rt['pic_display_height'] = $img->height();
} else {
$rt['pic_display_path'] = $path;
}
//创建缩略图
$img_w = $img->width();
$c_w = image_thumbnail_width();
$c_h = image_thumbnail_height();
$img_h = $img->height();
if ($img_w < $c_w) {
//目标图片宽度小于缩略图
$img_w = $c_w;
$img_h = $img_h * $c_w / $img_w;
}
if ($img_h < $c_h) {
//目标图片高度小于缩略图
$img_h = $c_h;
$img_w = $img_w * $c_h / $img_h;
}
//if($img_w / $img_h < $c_w / $c_h){
if ($img_w * $c_h < $c_w * $img_h) {
//化简表达
$x_w = $img_w;
$x_h = ceil($x_w * $c_h / $c_w);
} else {
$x_h = $img_h;
$x_w = ceil($x_h * $c_w / $c_h);
}
Log::write(print_r(get_defined_vars(), true));
$img->thumb($x_w, $x_h, Image::IMAGE_THUMB_CENTER);
Log::write(print_r(get_defined_vars(), true));
//$img->thumb($c_w, $c_h, Image::IMAGE_THUMB_SCALE);
$t_path = "thumbnail/" . dirname($path);
$this->createPath($root . "/" . $t_path);
$img->save($root . "/thumbnail/" . $path);
$rt['pic_thumbnails_path'] = "thumbnail/" . $path;
$rt['pic_thumbnails_width'] = $c_w;
$rt['pic_thumbnails_height'] = $c_h;
} catch (\Exception $ex) {
return [];
}
}
}
return $rt;
}
</div> </div> <div class="form-group"> <label class="control-label col-sm-2" for="InputThumbnailHeight">默认缩略高度</label> <div class="col-sm-10"> <input type="number" name="image_thumbnail_height" placeholder="默认宽度300" id="InputThumbnailHeight" value="<?php echo image_thumbnail_height(); ?> " class="form-control"> </div> </div> <div class="form-group"> <label class="control-label col-sm-2" for="InputHdWidth">默认高清图宽</label> <div class="col-sm-10"> <input type="number" name="image_hd_width" placeholder="默认宽度1600" id="InputHdWidth" value="<?php echo image_hd_width(); ?> " class="form-control"> <p class="help-block">这里关于高清图只有一个选项，就是最小宽度，根据最小宽度生成高清图。</p> </div> </div> <div class="form-group"> <label class="control-label col-sm-2" for="InputDisplayWidth">默认显示图宽</label> <div class="col-sm-10"> <input type="number" name="image_display_width" placeholder="默认宽度900" id="InputDisplayWidth" value="<?php echo image_display_width(); ?> " class="form-control"> <p class="help-block">和高清图类似，依据该宽度生成默认大小图片，小于此尺寸不做修改。</p> </div> </div>
