/**
* Tencent is pleased to support the open source community by making
* WeUI-WXSS available.
*
* Copyright (C) 2017 THL A29 Limited, a Tencent company.
* All rights reserved.
*
* Licensed under the MIT License (the "License"); you may not use
* this file except in compliance with the License. You may obtain a copy of
* the License at
*
*       http://opensource.org/licenses/MIT
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

._setArrow(@arrowsize, @borderColor, @borderWidth){
  display: inline-block;
  height: @arrowsize;
  width: @arrowsize;
  border-width: @borderWidth @borderWidth 0 0;
  border-color: @borderColor;
  border-style: solid;
}

.setArrow(@direction, @arrowsize, @borderColor, @borderWidth) when (@direction = top) {
  ._setArrow(@arrowsize, @borderColor, @borderWidth);
  transform: matrix(0.71,-0.71,0.71,0.71,0,0); // rotate(-45deg)
}

.setArrow(@direction, @arrowsize, @borderColor,@borderWidth) when (@direction = right) {
  ._setArrow(@arrowsize, @borderColor, @borderWidth);
  transform: matrix(0.71,0.71,-0.71,0.71,0,0); // rotate(45deg);

  position: relative;
  top: -2px;
}

.setArrow(@direction, @arrowsize, @borderColor,@borderWidth) when (@direction = down) {
  ._setArrow(@arrowsize, @borderColor, @borderWidth);
  transform: matrix(-0.71,0.71,-0.71,-0.71,0,0); // rotate(135deg);

  position: relative;
  top: -3px;
}

.setArrow(@direction, @arrowsize, @borderColor,@borderWidth) when (@direction = left) {
  ._setArrow(@arrowsize, @borderColor, @borderWidth);
  transform: matrix(-0.71,-0.71,0.71,-0.71,0,0); // rotate(-135deg);

  position: relative;
  top: -2px;
}