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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.
*/
/**
* AUTO-GENERATED FILE. DO NOT MODIFY.
*/
/*
* 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 { calculateTextPosition } from 'zrender/lib/contain/text.js';
import { isArray, isNumber } from 'zrender/lib/core/util.js';
export function createSectorCalculateTextPosition(positionMapping, opts) {
opts = opts || {};
var isRoundCap = opts.isRoundCap;
return function (out, opts, boundingRect) {
var textPosition = opts.position;
if (!textPosition || textPosition instanceof Array) {
return calculateTextPosition(out, opts, boundingRect);
}
var mappedSectorPosition = positionMapping(textPosition);
var distance = opts.distance != null ? opts.distance : 5;
var sector = this.shape;
var cx = sector.cx;
var cy = sector.cy;
var r = sector.r;
var r0 = sector.r0;
var middleR = (r + r0) / 2;
var startAngle = sector.startAngle;
var endAngle = sector.endAngle;
var middleAngle = (startAngle + endAngle) / 2;
var extraDist = isRoundCap ? Math.abs(r - r0) / 2 : 0;
var mathCos = Math.cos;
var mathSin = Math.sin;
// base position: top-left
var x = cx + r * mathCos(startAngle);
var y = cy + r * mathSin(startAngle);
var textAlign = 'left';
var textVerticalAlign = 'top';
switch (mappedSectorPosition) {
case 'startArc':
x = cx + (r0 - distance) * mathCos(middleAngle);
y = cy + (r0 - distance) * mathSin(middleAngle);
textAlign = 'center';
textVerticalAlign = 'top';
break;
case 'insideStartArc':
x = cx + (r0 + distance) * mathCos(middleAngle);
y = cy + (r0 + distance) * mathSin(middleAngle);
textAlign = 'center';
textVerticalAlign = 'bottom';
break;
case 'startAngle':
x = cx + middleR * mathCos(startAngle) + adjustAngleDistanceX(startAngle, distance + extraDist, false);
y = cy + middleR * mathSin(startAngle) + adjustAngleDistanceY(startAngle, distance + extraDist, false);
textAlign = 'right';
textVerticalAlign = 'middle';
break;
case 'insideStartAngle':
x = cx + middleR * mathCos(startAngle) + adjustAngleDistanceX(startAngle, -distance + extraDist, false);
y = cy + middleR * mathSin(startAngle) + adjustAngleDistanceY(startAngle, -distance + extraDist, false);
textAlign = 'left';
textVerticalAlign = 'middle';
break;
case 'middle':
x = cx + middleR * mathCos(middleAngle);
y = cy + middleR * mathSin(middleAngle);
textAlign = 'center';
textVerticalAlign = 'middle';
break;
case 'endArc':
x = cx + (r + distance) * mathCos(middleAngle);
y = cy + (r + distance) * mathSin(middleAngle);
textAlign = 'center';
textVerticalAlign = 'bottom';
break;
case 'insideEndArc':
x = cx + (r - distance) * mathCos(middleAngle);
y = cy + (r - distance) * mathSin(middleAngle);
textAlign = 'center';
textVerticalAlign = 'top';
break;
case 'endAngle':
x = cx + middleR * mathCos(endAngle) + adjustAngleDistanceX(endAngle, distance + extraDist, true);
y = cy + middleR * mathSin(endAngle) + adjustAngleDistanceY(endAngle, distance + extraDist, true);
textAlign = 'left';
textVerticalAlign = 'middle';
break;
case 'insideEndAngle':
x = cx + middleR * mathCos(endAngle) + adjustAngleDistanceX(endAngle, -distance + extraDist, true);
y = cy + middleR * mathSin(endAngle) + adjustAngleDistanceY(endAngle, -distance + extraDist, true);
textAlign = 'right';
textVerticalAlign = 'middle';
break;
default:
return calculateTextPosition(out, opts, boundingRect);
}
out = out || {};
out.x = x;
out.y = y;
out.align = textAlign;
out.verticalAlign = textVerticalAlign;
return out;
};
}
export function setSectorTextRotation(sector, textPosition, positionMapping, rotateType) {
if (isNumber(rotateType)) {
// user-set rotation
sector.setTextConfig({
rotation: rotateType
});
return;
} else if (isArray(textPosition)) {
// user-set position, use 0 as auto rotation
sector.setTextConfig({
rotation: 0
});
return;
}
var shape = sector.shape;
var startAngle = shape.clockwise ? shape.startAngle : shape.endAngle;
var endAngle = shape.clockwise ? shape.endAngle : shape.startAngle;
var middleAngle = (startAngle + endAngle) / 2;
var anchorAngle;
var mappedSectorPosition = positionMapping(textPosition);
switch (mappedSectorPosition) {
case 'startArc':
case 'insideStartArc':
case 'middle':
case 'insideEndArc':
case 'endArc':
anchorAngle = middleAngle;
break;
case 'startAngle':
case 'insideStartAngle':
anchorAngle = startAngle;
break;
case 'endAngle':
case 'insideEndAngle':
anchorAngle = endAngle;
break;
default:
sector.setTextConfig({
rotation: 0
});
return;
}
var rotate = Math.PI * 1.5 - anchorAngle;
/**
* TODO: labels with rotate > Math.PI / 2 should be rotate another
* half round flipped to increase readability. However, only middle
* position supports this for now, because in other positions, the
* anchor point is not at the center of the text, so the positions
* after rotating is not as expected.
*/
if (mappedSectorPosition === 'middle' && rotate > Math.PI / 2 && rotate < Math.PI * 1.5) {
rotate -= Math.PI;
}
sector.setTextConfig({
rotation: rotate
});
}
function adjustAngleDistanceX(angle, distance, isEnd) {
return distance * Math.sin(angle) * (isEnd ? -1 : 1);
}
function adjustAngleDistanceY(angle, distance, isEnd) {
return distance * Math.cos(angle) * (isEnd ? 1 : -1);
}