/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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import * as zrUtil from 'zrender/src/core/util';
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import GridModel from './GridModel';
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import CartesianAxisModel from './AxisModel';
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import SeriesModel from '../../model/Series';
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import { SINGLE_REFERRING } from '../../util/model';
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interface CartesianAxisLayout {
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position: [number, number];
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rotation: number;
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labelOffset: number;
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labelDirection: -1 | 1;
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tickDirection: -1 | 1;
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nameDirection: -1 | 1;
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labelRotate: number;
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z2: number;
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}
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/**
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* Can only be called after coordinate system creation stage.
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* (Can be called before coordinate system update stage).
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*/
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export function layout(
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gridModel: GridModel, axisModel: CartesianAxisModel, opt?: {labelInside?: boolean}
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): CartesianAxisLayout {
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opt = opt || {};
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const grid = gridModel.coordinateSystem;
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const axis = axisModel.axis;
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const layout = {} as CartesianAxisLayout;
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const otherAxisOnZeroOf = axis.getAxesOnZeroOf()[0];
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const rawAxisPosition = axis.position;
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const axisPosition: 'onZero' | typeof axis.position = otherAxisOnZeroOf ? 'onZero' : rawAxisPosition;
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const axisDim = axis.dim;
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const rect = grid.getRect();
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const rectBound = [rect.x, rect.x + rect.width, rect.y, rect.y + rect.height];
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const idx = {left: 0, right: 1, top: 0, bottom: 1, onZero: 2};
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const axisOffset = axisModel.get('offset') || 0;
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const posBound = axisDim === 'x'
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? [rectBound[2] - axisOffset, rectBound[3] + axisOffset]
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: [rectBound[0] - axisOffset, rectBound[1] + axisOffset];
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if (otherAxisOnZeroOf) {
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const onZeroCoord = otherAxisOnZeroOf.toGlobalCoord(otherAxisOnZeroOf.dataToCoord(0));
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posBound[idx.onZero] = Math.max(Math.min(onZeroCoord, posBound[1]), posBound[0]);
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}
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// Axis position
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layout.position = [
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axisDim === 'y' ? posBound[idx[axisPosition]] : rectBound[0],
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axisDim === 'x' ? posBound[idx[axisPosition]] : rectBound[3]
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];
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// Axis rotation
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layout.rotation = Math.PI / 2 * (axisDim === 'x' ? 0 : 1);
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// Tick and label direction, x y is axisDim
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const dirMap = {top: -1, bottom: 1, left: -1, right: 1} as const;
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layout.labelDirection = layout.tickDirection = layout.nameDirection = dirMap[rawAxisPosition];
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layout.labelOffset = otherAxisOnZeroOf ? posBound[idx[rawAxisPosition]] - posBound[idx.onZero] : 0;
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if (axisModel.get(['axisTick', 'inside'])) {
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layout.tickDirection = -layout.tickDirection as 1 | -1;
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}
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if (zrUtil.retrieve(opt.labelInside, axisModel.get(['axisLabel', 'inside']))) {
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layout.labelDirection = -layout.labelDirection as 1 | -1;
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}
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// Special label rotation
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const labelRotate = axisModel.get(['axisLabel', 'rotate']);
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layout.labelRotate = axisPosition === 'top' ? -labelRotate : labelRotate;
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// Over splitLine and splitArea
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layout.z2 = 1;
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return layout;
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}
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export function isCartesian2DSeries(seriesModel: SeriesModel): boolean {
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return seriesModel.get('coordinateSystem') === 'cartesian2d';
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}
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export function findAxisModels(seriesModel: SeriesModel): {
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xAxisModel: CartesianAxisModel;
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yAxisModel: CartesianAxisModel;
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} {
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const axisModelMap = {
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xAxisModel: null,
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yAxisModel: null
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} as ReturnType<typeof findAxisModels>;
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zrUtil.each(axisModelMap, function (v, key) {
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const axisType = key.replace(/Model$/, '');
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const axisModel = seriesModel.getReferringComponents(
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axisType, SINGLE_REFERRING
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).models[0] as CartesianAxisModel;
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if (__DEV__) {
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if (!axisModel) {
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throw new Error(axisType + ' "' + zrUtil.retrieve3(
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seriesModel.get(axisType + 'Index' as any),
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seriesModel.get(axisType + 'Id' as any),
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0
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) + '" not found');
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}
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}
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axisModelMap[key] = axisModel;
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});
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return axisModelMap;
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}
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