/** * 追加对象存储自动裁剪/压缩参数 * * @return string */ export function append_thumbnail_params(url, params) { const filesystem = $store('app').info.filesystem; if (filesystem === 'public') { return url; } let width = params.width || '200'; // 宽度 let height = params.height || '200'; // 高度 let mode = params.mode || 'lfit'; // 缩放模式 let quality = params.quality || 90; // 压缩质量 let gravity = params.gravity || 'center'; // 剪裁质量 let suffix = ''; let crop_str = ''; let quality_str = ''; let size = width + 'x' + height; switch (filesystem) { case 'aliyun': // 裁剪 if (!gravity && gravity != 'center') { // 指定了裁剪区域 mode = 'mfit'; crop_str = '/crop,g_' + gravityFormat('aliyun', gravity) + ',w_' + width + ',h_' + height; } // 质量压缩 if (quality > 0 && quality < 100) { quality_str = '/quality,q_' + quality; } // 缩放参数 suffix = 'x-oss-process=image/resize,m_' + mode + ',w_' + width + ',h_' + height; // 拼接裁剪和质量压缩 suffix += crop_str + quality_str; break; case 'qcloud': let mode_str = 'thumbnail'; if (mode == 'fill' || (!gravity && gravity != 'center')) { // 指定了裁剪区域 mode_str = 'crop'; mode = 'fill'; crop_str = '/gravity/' + gravityFormat('qcloud', gravity); } // 质量压缩 if (quality > 0 && quality < 100) { quality_str = '/rquality/' + quality; } switch (mode) { case 'lfit': size = '' + size + '>'; break; case 'mfit': size = '!' + size + 'r'; case 'fill': break; case 'pad': size = size + '/pad/1'; break; case 'fixed': size = size + '!'; break; } suffix = 'imageMogr2/' + mode_str + '/' + size + crop_str + quality_str; break; case 'qiniu': if (mode == 'fill' || (!gravity && gravity != 'center')) { // 指定了裁剪区域,全部转为 mfit mode = 'mfit'; crop_str = '/gravity/' + gravityFormat('qiniu', gravity) + '/crop/' + size; } // 质量压缩 if (quality > 0 && quality < 100) { quality_str = '/quality/' + quality; } switch (mode) { case 'lfit': case 'pad': // 七牛不支持在缩放之后,尺寸不足时,填充背景色,所以这里和 lfit 模式一样 size = size + '>'; break; case 'mfit': size = '!' + size + 'r'; break; case 'fill': // 会被转为 mfit break; case 'fixed': size = size + '!'; break; } suffix = 'imageMogr2/thumbnail/' + size + crop_str + quality_str; break; } return url + '?' + suffix; } /** * 裁剪区域格式转换 * * @param string $type aliyun|qcloud|qiniu * @param string $gravity 统一的裁剪区域字符 * * @return string */ export function gravityFormatMap(type, gravity) { let gravityFormat = { aliyun: { north_west: 'nw', // 左上 north: 'north', // 中上 north_east: 'ne', // 右上 west: 'west', // 左中 center: 'center', // 中部 east: 'east', // 右中 south_west: 'sw', // 左下 south: 'south', // 中下 south_east: 'se', // 右下 }, qcloud: { northwest: 'nw', // 左上 north: 'north', // 中上 northeast: 'ne', // 右上 west: 'west', // 左中 center: 'center', // 中部 east: 'east', // 右中 southwest: 'sw', // 左下 south: 'south', // 中下 southeast: 'se', // 右下 }, qiniu: { NorthWest: 'nw', // 左上 North: 'north', // 中上 NorthEast: 'ne', // 右上 West: 'west', // 左中 Center: 'center', // 中部 East: 'east', // 右中 SouthWest: 'sw', // 左下 South: 'south', // 中下 SouthEast: 'se', // 右下 }, }; return gravityFormat[type][gravity]; }