CartesianAxisView.js

import * as zrUtil from 'zrender/core/util';
import * as graphic from '../../util/graphic';
import AxisBuilder from './AxisBuilder';
import AxisView from './AxisView';
import * as cartesianAxisHelper from './cartesianAxisHelper';

var ifIgnoreOnTick = AxisBuilder.ifIgnoreOnTick;
var getInterval = AxisBuilder.getInterval;

var axisBuilderAttrs = [
    'axisLine', 'axisTickLabel', 'axisName'
];
var selfBuilderAttrs = [
    'splitArea', 'splitLine'
];

// function getAlignWithLabel(model, axisModel) {
//     var alignWithLabel = model.get('alignWithLabel');
//     if (alignWithLabel === 'auto') {
//         alignWithLabel = axisModel.get('axisTick.alignWithLabel');
//     }
//     return alignWithLabel;
// }

var CartesianAxisView = AxisView.extend({

    type: 'cartesianAxis',

    axisPointerClass: 'CartesianAxisPointer',

    /**
     * @override
     */
    render: function (axisModel, ecModel, api, payload) {

        this.group.removeAll();

        var oldAxisGroup = this._axisGroup;
        this._axisGroup = new graphic.Group();

        this.group.add(this._axisGroup);

        if (!axisModel.get('show')) {
            return;
        }

        var gridModel = axisModel.getCoordSysModel();

        var layout = cartesianAxisHelper.layout(gridModel, axisModel);

        var axisBuilder = new AxisBuilder(axisModel, layout);

        zrUtil.each(axisBuilderAttrs, axisBuilder.add, axisBuilder);

        this._axisGroup.add(axisBuilder.getGroup());

        zrUtil.each(selfBuilderAttrs, function (name) {
            if (axisModel.get(name + '.show')) {
                this['_' + name](axisModel, gridModel, layout.labelInterval);
            }
        }, this);

        graphic.groupTransition(oldAxisGroup, this._axisGroup, axisModel);

        CartesianAxisView.superCall(this, 'render', axisModel, ecModel, api, payload);
    },

    /**
     * @param {module:echarts/coord/cartesian/AxisModel} axisModel
     * @param {module:echarts/coord/cartesian/GridModel} gridModel
     * @param {number|Function} labelInterval
     * @private
     */
    _splitLine: function (axisModel, gridModel, labelInterval) {
        var axis = axisModel.axis;

        if (axis.scale.isBlank()) {
            return;
        }

        var splitLineModel = axisModel.getModel('splitLine');
        var lineStyleModel = splitLineModel.getModel('lineStyle');
        var lineColors = lineStyleModel.get('color');

        var lineInterval = getInterval(splitLineModel, labelInterval);

        lineColors = zrUtil.isArray(lineColors) ? lineColors : [lineColors];

        var gridRect = gridModel.coordinateSystem.getRect();
        var isHorizontal = axis.isHorizontal();

        var lineCount = 0;

        var ticksCoords = axis.getTicksCoords(
            // splitLineModel.get('alignWithLabel')
        );
        var ticks = axis.scale.getTicks();

        var showMinLabel = axisModel.get('axisLabel.showMinLabel');
        var showMaxLabel = axisModel.get('axisLabel.showMaxLabel');

        var p1 = [];
        var p2 = [];
        // Simple optimization
        // Batching the lines if color are the same
        var lineStyle = lineStyleModel.getLineStyle();
        for (var i = 0; i < ticksCoords.length; i++) {
            if (ifIgnoreOnTick(
                axis, i, lineInterval, ticksCoords.length,
                showMinLabel, showMaxLabel
            )) {
                continue;
            }

            var tickCoord = axis.toGlobalCoord(ticksCoords[i]);

            if (isHorizontal) {
                p1[0] = tickCoord;
                p1[1] = gridRect.y;
                p2[0] = tickCoord;
                p2[1] = gridRect.y + gridRect.height;
            }
            else {
                p1[0] = gridRect.x;
                p1[1] = tickCoord;
                p2[0] = gridRect.x + gridRect.width;
                p2[1] = tickCoord;
            }

            var colorIndex = (lineCount++) % lineColors.length;
            this._axisGroup.add(new graphic.Line(graphic.subPixelOptimizeLine({
                anid: 'line_' + ticks[i],

                shape: {
                    x1: p1[0],
                    y1: p1[1],
                    x2: p2[0],
                    y2: p2[1]
                },
                style: zrUtil.defaults({
                    stroke: lineColors[colorIndex]
                }, lineStyle),
                silent: true
            })));
        }
    },

    /**
     * @param {module:echarts/coord/cartesian/AxisModel} axisModel
     * @param {module:echarts/coord/cartesian/GridModel} gridModel
     * @param {number|Function} labelInterval
     * @private
     */
    _splitArea: function (axisModel, gridModel, labelInterval) {
        var axis = axisModel.axis;

        if (axis.scale.isBlank()) {
            return;
        }

        var splitAreaModel = axisModel.getModel('splitArea');
        var areaStyleModel = splitAreaModel.getModel('areaStyle');
        var areaColors = areaStyleModel.get('color');

        var gridRect = gridModel.coordinateSystem.getRect();

        var ticksCoords = axis.getTicksCoords(
            // splitAreaModel.get('alignWithLabel')
        );
        var ticks = axis.scale.getTicks();

        var prevX = axis.toGlobalCoord(ticksCoords[0]);
        var prevY = axis.toGlobalCoord(ticksCoords[0]);

        var count = 0;

        var areaInterval = getInterval(splitAreaModel, labelInterval);

        var areaStyle = areaStyleModel.getAreaStyle();
        areaColors = zrUtil.isArray(areaColors) ? areaColors : [areaColors];

        var showMinLabel = axisModel.get('axisLabel.showMinLabel');
        var showMaxLabel = axisModel.get('axisLabel.showMaxLabel');

        for (var i = 1; i < ticksCoords.length; i++) {
            if (ifIgnoreOnTick(
                axis, i, areaInterval, ticksCoords.length,
                showMinLabel, showMaxLabel
            )) {
                continue;
            }

            var tickCoord = axis.toGlobalCoord(ticksCoords[i]);

            var x;
            var y;
            var width;
            var height;
            if (axis.isHorizontal()) {
                x = prevX;
                y = gridRect.y;
                width = tickCoord - x;
                height = gridRect.height;
            }
            else {
                x = gridRect.x;
                y = prevY;
                width = gridRect.width;
                height = tickCoord - y;
            }

            var colorIndex = (count++) % areaColors.length;
            this._axisGroup.add(new graphic.Rect({
                anid: 'area_' + ticks[i],

                shape: {
                    x: x,
                    y: y,
                    width: width,
                    height: height
                },
                style: zrUtil.defaults({
                    fill: areaColors[colorIndex]
                }, areaStyle),
                silent: true
            }));

            prevX = x + width;
            prevY = y + height;
        }
    }
});

CartesianAxisView.extend({
    type: 'xAxis'
});
CartesianAxisView.extend({
    type: 'yAxis'
});