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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.
*/
import BaseAxisPointer, { AxisPointerElementOptions } from './BaseAxisPointer';
import * as viewHelper from './viewHelper';
import * as singleAxisHelper from '../../coord/single/singleAxisHelper';
import SingleAxis from '../../coord/single/SingleAxis';
import Single from '../../coord/single/Single';
import { PathProps } from 'zrender/src/graphic/Path';
import { ScaleDataValue, VerticalAlign, CommonAxisPointerOption } from '../../util/types';
import ExtensionAPI from '../../core/ExtensionAPI';
import SingleAxisModel from '../../coord/single/AxisModel';
import Model from '../../model/Model';
const XY = ['x', 'y'] as const;
const WH = ['width', 'height'] as const;
// Not use top level axisPointer model
type AxisPointerModel = Model<CommonAxisPointerOption>;
class SingleAxisPointer extends BaseAxisPointer {
/**
* @override
*/
makeElOption(
elOption: AxisPointerElementOptions,
value: ScaleDataValue,
axisModel: SingleAxisModel,
axisPointerModel: AxisPointerModel,
api: ExtensionAPI
) {
const axis = axisModel.axis;
const coordSys = axis.coordinateSystem;
const otherExtent = getGlobalExtent(coordSys, 1 - getPointDimIndex(axis));
const pixelValue = coordSys.dataToPoint(value)[0];
const axisPointerType = axisPointerModel.get('type');
if (axisPointerType && axisPointerType !== 'none') {
const elStyle = viewHelper.buildElStyle(axisPointerModel);
const pointerOption = pointerShapeBuilder[axisPointerType](
axis, pixelValue, otherExtent
);
pointerOption.style = elStyle;
elOption.graphicKey = pointerOption.type;
elOption.pointer = pointerOption;
}
const layoutInfo = singleAxisHelper.layout(axisModel);
viewHelper.buildCartesianSingleLabelElOption(
// @ts-ignore
value, elOption, layoutInfo, axisModel, axisPointerModel, api
);
}
/**
* @override
*/
getHandleTransform(
value: ScaleDataValue,
axisModel: SingleAxisModel,
axisPointerModel: AxisPointerModel
) {
const layoutInfo = singleAxisHelper.layout(axisModel, {labelInside: false});
// @ts-ignore
layoutInfo.labelMargin = axisPointerModel.get(['handle', 'margin']);
const position = viewHelper.getTransformedPosition(axisModel.axis, value, layoutInfo);
return {
x: position[0],
y: position[1],
rotation: layoutInfo.rotation + (layoutInfo.labelDirection < 0 ? Math.PI : 0)
};
}
/**
* @override
*/
updateHandleTransform(
transform: {
x: number,
y: number,
rotation: number
},
delta: number[],
axisModel: SingleAxisModel,
axisPointerModel: AxisPointerModel
) {
const axis = axisModel.axis;
const coordSys = axis.coordinateSystem;
const dimIndex = getPointDimIndex(axis);
const axisExtent = getGlobalExtent(coordSys, dimIndex);
const currPosition = [transform.x, transform.y];
currPosition[dimIndex] += delta[dimIndex];
currPosition[dimIndex] = Math.min(axisExtent[1], currPosition[dimIndex]);
currPosition[dimIndex] = Math.max(axisExtent[0], currPosition[dimIndex]);
const otherExtent = getGlobalExtent(coordSys, 1 - dimIndex);
const cursorOtherValue = (otherExtent[1] + otherExtent[0]) / 2;
const cursorPoint = [cursorOtherValue, cursorOtherValue];
cursorPoint[dimIndex] = currPosition[dimIndex];
return {
x: currPosition[0],
y: currPosition[1],
rotation: transform.rotation,
cursorPoint: cursorPoint,
tooltipOption: {
verticalAlign: 'middle' as VerticalAlign
}
};
}
}
const pointerShapeBuilder = {
line: function (axis: SingleAxis, pixelValue: number, otherExtent: number[]): PathProps & {
type: 'Line'
} {
const targetShape = viewHelper.makeLineShape(
[pixelValue, otherExtent[0]],
[pixelValue, otherExtent[1]],
getPointDimIndex(axis)
);
return {
type: 'Line',
subPixelOptimize: true,
shape: targetShape
};
},
shadow: function (axis: SingleAxis, pixelValue: number, otherExtent: number[]): PathProps & {
type: 'Rect'
} {
const bandWidth = axis.getBandWidth();
const span = otherExtent[1] - otherExtent[0];
return {
type: 'Rect',
shape: viewHelper.makeRectShape(
[pixelValue - bandWidth / 2, otherExtent[0]],
[bandWidth, span],
getPointDimIndex(axis)
)
};
}
};
function getPointDimIndex(axis: SingleAxis): number {
return axis.isHorizontal() ? 0 : 1;
}
function getGlobalExtent(coordSys: Single, dimIndex: number) {
const rect = coordSys.getRect();
return [rect[XY[dimIndex]], rect[XY[dimIndex]] + rect[WH[dimIndex]]];
}
export default SingleAxisPointer;
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