helper.js 3.4 KB

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  1. /*
  2. * Licensed to the Apache Software Foundation (ASF) under one
  3. * or more contributor license agreements. See the NOTICE file
  4. * distributed with this work for additional information
  5. * regarding copyright ownership. The ASF licenses this file
  6. * to you under the Apache License, Version 2.0 (the
  7. * "License"); you may not use this file except in compliance
  8. * with the License. You may obtain a copy of the License at
  9. *
  10. * http://www.apache.org/licenses/LICENSE-2.0
  11. *
  12. * Unless required by applicable law or agreed to in writing,
  13. * software distributed under the License is distributed on an
  14. * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  15. * KIND, either express or implied. See the License for the
  16. * specific language governing permissions and limitations
  17. * under the License.
  18. */
  19. var zrUtil = require("zrender/lib/core/util");
  20. var _layout = require("../../util/layout");
  21. var getLayoutRect = _layout.getLayoutRect;
  22. /*
  23. * Licensed to the Apache Software Foundation (ASF) under one
  24. * or more contributor license agreements. See the NOTICE file
  25. * distributed with this work for additional information
  26. * regarding copyright ownership. The ASF licenses this file
  27. * to you under the Apache License, Version 2.0 (the
  28. * "License"); you may not use this file except in compliance
  29. * with the License. You may obtain a copy of the License at
  30. *
  31. * http://www.apache.org/licenses/LICENSE-2.0
  32. *
  33. * Unless required by applicable law or agreed to in writing,
  34. * software distributed under the License is distributed on an
  35. * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  36. * KIND, either express or implied. See the License for the
  37. * specific language governing permissions and limitations
  38. * under the License.
  39. */
  40. /**
  41. * @param {module:echarts/component/visualMap/VisualMapModel} visualMapModel\
  42. * @param {module:echarts/ExtensionAPI} api
  43. * @param {Array.<number>} itemSize always [short, long]
  44. * @return {string} 'left' or 'right' or 'top' or 'bottom'
  45. */
  46. function getItemAlign(visualMapModel, api, itemSize) {
  47. var modelOption = visualMapModel.option;
  48. var itemAlign = modelOption.align;
  49. if (itemAlign != null && itemAlign !== 'auto') {
  50. return itemAlign;
  51. } // Auto decision align.
  52. var ecSize = {
  53. width: api.getWidth(),
  54. height: api.getHeight()
  55. };
  56. var realIndex = modelOption.orient === 'horizontal' ? 1 : 0;
  57. var paramsSet = [['left', 'right', 'width'], ['top', 'bottom', 'height']];
  58. var reals = paramsSet[realIndex];
  59. var fakeValue = [0, null, 10];
  60. var layoutInput = {};
  61. for (var i = 0; i < 3; i++) {
  62. layoutInput[paramsSet[1 - realIndex][i]] = fakeValue[i];
  63. layoutInput[reals[i]] = i === 2 ? itemSize[0] : modelOption[reals[i]];
  64. }
  65. var rParam = [['x', 'width', 3], ['y', 'height', 0]][realIndex];
  66. var rect = getLayoutRect(layoutInput, ecSize, modelOption.padding);
  67. return reals[(rect.margin[rParam[2]] || 0) + rect[rParam[0]] + rect[rParam[1]] * 0.5 < ecSize[rParam[1]] * 0.5 ? 0 : 1];
  68. }
  69. /**
  70. * Prepare dataIndex for outside usage, where dataIndex means rawIndex, and
  71. * dataIndexInside means filtered index.
  72. */
  73. function makeHighDownBatch(batch, visualMapModel) {
  74. zrUtil.each(batch || [], function (batchItem) {
  75. if (batchItem.dataIndex != null) {
  76. batchItem.dataIndexInside = batchItem.dataIndex;
  77. batchItem.dataIndex = null;
  78. }
  79. batchItem.highlightKey = 'visualMap' + (visualMapModel ? visualMapModel.componentIndex : '');
  80. });
  81. return batch;
  82. }
  83. exports.getItemAlign = getItemAlign;
  84. exports.makeHighDownBatch = makeHighDownBatch;