541 lines
18 KiB
JavaScript
541 lines
18 KiB
JavaScript
|
|
||
|
|
/*
|
||
|
|
* 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 { Point, Path, Polyline } from '../util/graphic.js';
|
||
|
|
import PathProxy from 'zrender/lib/core/PathProxy.js';
|
||
|
|
import { normalizeRadian } from 'zrender/lib/contain/util.js';
|
||
|
|
import { cubicProjectPoint, quadraticProjectPoint } from 'zrender/lib/core/curve.js';
|
||
|
|
import { defaults, retrieve2 } from 'zrender/lib/core/util.js';
|
||
|
|
import { invert } from 'zrender/lib/core/matrix.js';
|
||
|
|
import * as vector from 'zrender/lib/core/vector.js';
|
||
|
|
import { DISPLAY_STATES, SPECIAL_STATES } from '../util/states.js';
|
||
|
|
var PI2 = Math.PI * 2;
|
||
|
|
var CMD = PathProxy.CMD;
|
||
|
|
var DEFAULT_SEARCH_SPACE = ['top', 'right', 'bottom', 'left'];
|
||
|
|
function getCandidateAnchor(pos, distance, rect, outPt, outDir) {
|
||
|
|
var width = rect.width;
|
||
|
|
var height = rect.height;
|
||
|
|
switch (pos) {
|
||
|
|
case 'top':
|
||
|
|
outPt.set(rect.x + width / 2, rect.y - distance);
|
||
|
|
outDir.set(0, -1);
|
||
|
|
break;
|
||
|
|
case 'bottom':
|
||
|
|
outPt.set(rect.x + width / 2, rect.y + height + distance);
|
||
|
|
outDir.set(0, 1);
|
||
|
|
break;
|
||
|
|
case 'left':
|
||
|
|
outPt.set(rect.x - distance, rect.y + height / 2);
|
||
|
|
outDir.set(-1, 0);
|
||
|
|
break;
|
||
|
|
case 'right':
|
||
|
|
outPt.set(rect.x + width + distance, rect.y + height / 2);
|
||
|
|
outDir.set(1, 0);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
function projectPointToArc(cx, cy, r, startAngle, endAngle, anticlockwise, x, y, out) {
|
||
|
|
x -= cx;
|
||
|
|
y -= cy;
|
||
|
|
var d = Math.sqrt(x * x + y * y);
|
||
|
|
x /= d;
|
||
|
|
y /= d;
|
||
|
|
// Intersect point.
|
||
|
|
var ox = x * r + cx;
|
||
|
|
var oy = y * r + cy;
|
||
|
|
if (Math.abs(startAngle - endAngle) % PI2 < 1e-4) {
|
||
|
|
// Is a circle
|
||
|
|
out[0] = ox;
|
||
|
|
out[1] = oy;
|
||
|
|
return d - r;
|
||
|
|
}
|
||
|
|
if (anticlockwise) {
|
||
|
|
var tmp = startAngle;
|
||
|
|
startAngle = normalizeRadian(endAngle);
|
||
|
|
endAngle = normalizeRadian(tmp);
|
||
|
|
} else {
|
||
|
|
startAngle = normalizeRadian(startAngle);
|
||
|
|
endAngle = normalizeRadian(endAngle);
|
||
|
|
}
|
||
|
|
if (startAngle > endAngle) {
|
||
|
|
endAngle += PI2;
|
||
|
|
}
|
||
|
|
var angle = Math.atan2(y, x);
|
||
|
|
if (angle < 0) {
|
||
|
|
angle += PI2;
|
||
|
|
}
|
||
|
|
if (angle >= startAngle && angle <= endAngle || angle + PI2 >= startAngle && angle + PI2 <= endAngle) {
|
||
|
|
// Project point is on the arc.
|
||
|
|
out[0] = ox;
|
||
|
|
out[1] = oy;
|
||
|
|
return d - r;
|
||
|
|
}
|
||
|
|
var x1 = r * Math.cos(startAngle) + cx;
|
||
|
|
var y1 = r * Math.sin(startAngle) + cy;
|
||
|
|
var x2 = r * Math.cos(endAngle) + cx;
|
||
|
|
var y2 = r * Math.sin(endAngle) + cy;
|
||
|
|
var d1 = (x1 - x) * (x1 - x) + (y1 - y) * (y1 - y);
|
||
|
|
var d2 = (x2 - x) * (x2 - x) + (y2 - y) * (y2 - y);
|
||
|
|
if (d1 < d2) {
|
||
|
|
out[0] = x1;
|
||
|
|
out[1] = y1;
|
||
|
|
return Math.sqrt(d1);
|
||
|
|
} else {
|
||
|
|
out[0] = x2;
|
||
|
|
out[1] = y2;
|
||
|
|
return Math.sqrt(d2);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
function projectPointToLine(x1, y1, x2, y2, x, y, out, limitToEnds) {
|
||
|
|
var dx = x - x1;
|
||
|
|
var dy = y - y1;
|
||
|
|
var dx1 = x2 - x1;
|
||
|
|
var dy1 = y2 - y1;
|
||
|
|
var lineLen = Math.sqrt(dx1 * dx1 + dy1 * dy1);
|
||
|
|
dx1 /= lineLen;
|
||
|
|
dy1 /= lineLen;
|
||
|
|
// dot product
|
||
|
|
var projectedLen = dx * dx1 + dy * dy1;
|
||
|
|
var t = projectedLen / lineLen;
|
||
|
|
if (limitToEnds) {
|
||
|
|
t = Math.min(Math.max(t, 0), 1);
|
||
|
|
}
|
||
|
|
t *= lineLen;
|
||
|
|
var ox = out[0] = x1 + t * dx1;
|
||
|
|
var oy = out[1] = y1 + t * dy1;
|
||
|
|
return Math.sqrt((ox - x) * (ox - x) + (oy - y) * (oy - y));
|
||
|
|
}
|
||
|
|
function projectPointToRect(x1, y1, width, height, x, y, out) {
|
||
|
|
if (width < 0) {
|
||
|
|
x1 = x1 + width;
|
||
|
|
width = -width;
|
||
|
|
}
|
||
|
|
if (height < 0) {
|
||
|
|
y1 = y1 + height;
|
||
|
|
height = -height;
|
||
|
|
}
|
||
|
|
var x2 = x1 + width;
|
||
|
|
var y2 = y1 + height;
|
||
|
|
var ox = out[0] = Math.min(Math.max(x, x1), x2);
|
||
|
|
var oy = out[1] = Math.min(Math.max(y, y1), y2);
|
||
|
|
return Math.sqrt((ox - x) * (ox - x) + (oy - y) * (oy - y));
|
||
|
|
}
|
||
|
|
var tmpPt = [];
|
||
|
|
function nearestPointOnRect(pt, rect, out) {
|
||
|
|
var dist = projectPointToRect(rect.x, rect.y, rect.width, rect.height, pt.x, pt.y, tmpPt);
|
||
|
|
out.set(tmpPt[0], tmpPt[1]);
|
||
|
|
return dist;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Calculate min distance corresponding point.
|
||
|
|
* This method won't evaluate if point is in the path.
|
||
|
|
*/
|
||
|
|
function nearestPointOnPath(pt, path, out) {
|
||
|
|
var xi = 0;
|
||
|
|
var yi = 0;
|
||
|
|
var x0 = 0;
|
||
|
|
var y0 = 0;
|
||
|
|
var x1;
|
||
|
|
var y1;
|
||
|
|
var minDist = Infinity;
|
||
|
|
var data = path.data;
|
||
|
|
var x = pt.x;
|
||
|
|
var y = pt.y;
|
||
|
|
for (var i = 0; i < data.length;) {
|
||
|
|
var cmd = data[i++];
|
||
|
|
if (i === 1) {
|
||
|
|
xi = data[i];
|
||
|
|
yi = data[i + 1];
|
||
|
|
x0 = xi;
|
||
|
|
y0 = yi;
|
||
|
|
}
|
||
|
|
var d = minDist;
|
||
|
|
switch (cmd) {
|
||
|
|
case CMD.M:
|
||
|
|
// moveTo 命令重新创建一个新的 subpath, 并且更新新的起点
|
||
|
|
// 在 closePath 的时候使用
|
||
|
|
x0 = data[i++];
|
||
|
|
y0 = data[i++];
|
||
|
|
xi = x0;
|
||
|
|
yi = y0;
|
||
|
|
break;
|
||
|
|
case CMD.L:
|
||
|
|
d = projectPointToLine(xi, yi, data[i], data[i + 1], x, y, tmpPt, true);
|
||
|
|
xi = data[i++];
|
||
|
|
yi = data[i++];
|
||
|
|
break;
|
||
|
|
case CMD.C:
|
||
|
|
d = cubicProjectPoint(xi, yi, data[i++], data[i++], data[i++], data[i++], data[i], data[i + 1], x, y, tmpPt);
|
||
|
|
xi = data[i++];
|
||
|
|
yi = data[i++];
|
||
|
|
break;
|
||
|
|
case CMD.Q:
|
||
|
|
d = quadraticProjectPoint(xi, yi, data[i++], data[i++], data[i], data[i + 1], x, y, tmpPt);
|
||
|
|
xi = data[i++];
|
||
|
|
yi = data[i++];
|
||
|
|
break;
|
||
|
|
case CMD.A:
|
||
|
|
// TODO Arc 判断的开销比较大
|
||
|
|
var cx = data[i++];
|
||
|
|
var cy = data[i++];
|
||
|
|
var rx = data[i++];
|
||
|
|
var ry = data[i++];
|
||
|
|
var theta = data[i++];
|
||
|
|
var dTheta = data[i++];
|
||
|
|
// TODO Arc 旋转
|
||
|
|
i += 1;
|
||
|
|
var anticlockwise = !!(1 - data[i++]);
|
||
|
|
x1 = Math.cos(theta) * rx + cx;
|
||
|
|
y1 = Math.sin(theta) * ry + cy;
|
||
|
|
// 不是直接使用 arc 命令
|
||
|
|
if (i <= 1) {
|
||
|
|
// 第一个命令起点还未定义
|
||
|
|
x0 = x1;
|
||
|
|
y0 = y1;
|
||
|
|
}
|
||
|
|
// zr 使用scale来模拟椭圆, 这里也对x做一定的缩放
|
||
|
|
var _x = (x - cx) * ry / rx + cx;
|
||
|
|
d = projectPointToArc(cx, cy, ry, theta, theta + dTheta, anticlockwise, _x, y, tmpPt);
|
||
|
|
xi = Math.cos(theta + dTheta) * rx + cx;
|
||
|
|
yi = Math.sin(theta + dTheta) * ry + cy;
|
||
|
|
break;
|
||
|
|
case CMD.R:
|
||
|
|
x0 = xi = data[i++];
|
||
|
|
y0 = yi = data[i++];
|
||
|
|
var width = data[i++];
|
||
|
|
var height = data[i++];
|
||
|
|
d = projectPointToRect(x0, y0, width, height, x, y, tmpPt);
|
||
|
|
break;
|
||
|
|
case CMD.Z:
|
||
|
|
d = projectPointToLine(xi, yi, x0, y0, x, y, tmpPt, true);
|
||
|
|
xi = x0;
|
||
|
|
yi = y0;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (d < minDist) {
|
||
|
|
minDist = d;
|
||
|
|
out.set(tmpPt[0], tmpPt[1]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return minDist;
|
||
|
|
}
|
||
|
|
// Temporal variable for intermediate usage.
|
||
|
|
var pt0 = new Point();
|
||
|
|
var pt1 = new Point();
|
||
|
|
var pt2 = new Point();
|
||
|
|
var dir = new Point();
|
||
|
|
var dir2 = new Point();
|
||
|
|
/**
|
||
|
|
* Calculate a proper guide line based on the label position and graphic element definition
|
||
|
|
* @param label
|
||
|
|
* @param labelRect
|
||
|
|
* @param target
|
||
|
|
* @param targetRect
|
||
|
|
*/
|
||
|
|
export function updateLabelLinePoints(target, labelLineModel) {
|
||
|
|
if (!target) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
var labelLine = target.getTextGuideLine();
|
||
|
|
var label = target.getTextContent();
|
||
|
|
// Needs to create text guide in each charts.
|
||
|
|
if (!(label && labelLine)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
var labelGuideConfig = target.textGuideLineConfig || {};
|
||
|
|
var points = [[0, 0], [0, 0], [0, 0]];
|
||
|
|
var searchSpace = labelGuideConfig.candidates || DEFAULT_SEARCH_SPACE;
|
||
|
|
var labelRect = label.getBoundingRect().clone();
|
||
|
|
labelRect.applyTransform(label.getComputedTransform());
|
||
|
|
var minDist = Infinity;
|
||
|
|
var anchorPoint = labelGuideConfig.anchor;
|
||
|
|
var targetTransform = target.getComputedTransform();
|
||
|
|
var targetInversedTransform = targetTransform && invert([], targetTransform);
|
||
|
|
var len = labelLineModel.get('length2') || 0;
|
||
|
|
if (anchorPoint) {
|
||
|
|
pt2.copy(anchorPoint);
|
||
|
|
}
|
||
|
|
for (var i = 0; i < searchSpace.length; i++) {
|
||
|
|
var candidate = searchSpace[i];
|
||
|
|
getCandidateAnchor(candidate, 0, labelRect, pt0, dir);
|
||
|
|
Point.scaleAndAdd(pt1, pt0, dir, len);
|
||
|
|
// Transform to target coord space.
|
||
|
|
pt1.transform(targetInversedTransform);
|
||
|
|
// Note: getBoundingRect will ensure the `path` being created.
|
||
|
|
var boundingRect = target.getBoundingRect();
|
||
|
|
var dist = anchorPoint ? anchorPoint.distance(pt1) : target instanceof Path ? nearestPointOnPath(pt1, target.path, pt2) : nearestPointOnRect(pt1, boundingRect, pt2);
|
||
|
|
// TODO pt2 is in the path
|
||
|
|
if (dist < minDist) {
|
||
|
|
minDist = dist;
|
||
|
|
// Transform back to global space.
|
||
|
|
pt1.transform(targetTransform);
|
||
|
|
pt2.transform(targetTransform);
|
||
|
|
pt2.toArray(points[0]);
|
||
|
|
pt1.toArray(points[1]);
|
||
|
|
pt0.toArray(points[2]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
limitTurnAngle(points, labelLineModel.get('minTurnAngle'));
|
||
|
|
labelLine.setShape({
|
||
|
|
points: points
|
||
|
|
});
|
||
|
|
}
|
||
|
|
// Temporal variable for the limitTurnAngle function
|
||
|
|
var tmpArr = [];
|
||
|
|
var tmpProjPoint = new Point();
|
||
|
|
/**
|
||
|
|
* Reduce the line segment attached to the label to limit the turn angle between two segments.
|
||
|
|
* @param linePoints
|
||
|
|
* @param minTurnAngle Radian of minimum turn angle. 0 - 180
|
||
|
|
*/
|
||
|
|
export function limitTurnAngle(linePoints, minTurnAngle) {
|
||
|
|
if (!(minTurnAngle <= 180 && minTurnAngle > 0)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
minTurnAngle = minTurnAngle / 180 * Math.PI;
|
||
|
|
// The line points can be
|
||
|
|
// /pt1----pt2 (label)
|
||
|
|
// /
|
||
|
|
// pt0/
|
||
|
|
pt0.fromArray(linePoints[0]);
|
||
|
|
pt1.fromArray(linePoints[1]);
|
||
|
|
pt2.fromArray(linePoints[2]);
|
||
|
|
Point.sub(dir, pt0, pt1);
|
||
|
|
Point.sub(dir2, pt2, pt1);
|
||
|
|
var len1 = dir.len();
|
||
|
|
var len2 = dir2.len();
|
||
|
|
if (len1 < 1e-3 || len2 < 1e-3) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
dir.scale(1 / len1);
|
||
|
|
dir2.scale(1 / len2);
|
||
|
|
var angleCos = dir.dot(dir2);
|
||
|
|
var minTurnAngleCos = Math.cos(minTurnAngle);
|
||
|
|
if (minTurnAngleCos < angleCos) {
|
||
|
|
// Smaller than minTurnAngle
|
||
|
|
// Calculate project point of pt0 on pt1-pt2
|
||
|
|
var d = projectPointToLine(pt1.x, pt1.y, pt2.x, pt2.y, pt0.x, pt0.y, tmpArr, false);
|
||
|
|
tmpProjPoint.fromArray(tmpArr);
|
||
|
|
// Calculate new projected length with limited minTurnAngle and get the new connect point
|
||
|
|
tmpProjPoint.scaleAndAdd(dir2, d / Math.tan(Math.PI - minTurnAngle));
|
||
|
|
// Limit the new calculated connect point between pt1 and pt2.
|
||
|
|
var t = pt2.x !== pt1.x ? (tmpProjPoint.x - pt1.x) / (pt2.x - pt1.x) : (tmpProjPoint.y - pt1.y) / (pt2.y - pt1.y);
|
||
|
|
if (isNaN(t)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (t < 0) {
|
||
|
|
Point.copy(tmpProjPoint, pt1);
|
||
|
|
} else if (t > 1) {
|
||
|
|
Point.copy(tmpProjPoint, pt2);
|
||
|
|
}
|
||
|
|
tmpProjPoint.toArray(linePoints[1]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Limit the angle of line and the surface
|
||
|
|
* @param maxSurfaceAngle Radian of minimum turn angle. 0 - 180. 0 is same direction to normal. 180 is opposite
|
||
|
|
*/
|
||
|
|
export function limitSurfaceAngle(linePoints, surfaceNormal, maxSurfaceAngle) {
|
||
|
|
if (!(maxSurfaceAngle <= 180 && maxSurfaceAngle > 0)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
maxSurfaceAngle = maxSurfaceAngle / 180 * Math.PI;
|
||
|
|
pt0.fromArray(linePoints[0]);
|
||
|
|
pt1.fromArray(linePoints[1]);
|
||
|
|
pt2.fromArray(linePoints[2]);
|
||
|
|
Point.sub(dir, pt1, pt0);
|
||
|
|
Point.sub(dir2, pt2, pt1);
|
||
|
|
var len1 = dir.len();
|
||
|
|
var len2 = dir2.len();
|
||
|
|
if (len1 < 1e-3 || len2 < 1e-3) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
dir.scale(1 / len1);
|
||
|
|
dir2.scale(1 / len2);
|
||
|
|
var angleCos = dir.dot(surfaceNormal);
|
||
|
|
var maxSurfaceAngleCos = Math.cos(maxSurfaceAngle);
|
||
|
|
if (angleCos < maxSurfaceAngleCos) {
|
||
|
|
// Calculate project point of pt0 on pt1-pt2
|
||
|
|
var d = projectPointToLine(pt1.x, pt1.y, pt2.x, pt2.y, pt0.x, pt0.y, tmpArr, false);
|
||
|
|
tmpProjPoint.fromArray(tmpArr);
|
||
|
|
var HALF_PI = Math.PI / 2;
|
||
|
|
var angle2 = Math.acos(dir2.dot(surfaceNormal));
|
||
|
|
var newAngle = HALF_PI + angle2 - maxSurfaceAngle;
|
||
|
|
if (newAngle >= HALF_PI) {
|
||
|
|
// parallel
|
||
|
|
Point.copy(tmpProjPoint, pt2);
|
||
|
|
} else {
|
||
|
|
// Calculate new projected length with limited minTurnAngle and get the new connect point
|
||
|
|
tmpProjPoint.scaleAndAdd(dir2, d / Math.tan(Math.PI / 2 - newAngle));
|
||
|
|
// Limit the new calculated connect point between pt1 and pt2.
|
||
|
|
var t = pt2.x !== pt1.x ? (tmpProjPoint.x - pt1.x) / (pt2.x - pt1.x) : (tmpProjPoint.y - pt1.y) / (pt2.y - pt1.y);
|
||
|
|
if (isNaN(t)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (t < 0) {
|
||
|
|
Point.copy(tmpProjPoint, pt1);
|
||
|
|
} else if (t > 1) {
|
||
|
|
Point.copy(tmpProjPoint, pt2);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
tmpProjPoint.toArray(linePoints[1]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
function setLabelLineState(labelLine, ignore, stateName, stateModel) {
|
||
|
|
var isNormal = stateName === 'normal';
|
||
|
|
var stateObj = isNormal ? labelLine : labelLine.ensureState(stateName);
|
||
|
|
// Make sure display.
|
||
|
|
stateObj.ignore = ignore;
|
||
|
|
// Set smooth
|
||
|
|
var smooth = stateModel.get('smooth');
|
||
|
|
if (smooth && smooth === true) {
|
||
|
|
smooth = 0.3;
|
||
|
|
}
|
||
|
|
stateObj.shape = stateObj.shape || {};
|
||
|
|
if (smooth > 0) {
|
||
|
|
stateObj.shape.smooth = smooth;
|
||
|
|
}
|
||
|
|
var styleObj = stateModel.getModel('lineStyle').getLineStyle();
|
||
|
|
isNormal ? labelLine.useStyle(styleObj) : stateObj.style = styleObj;
|
||
|
|
}
|
||
|
|
function buildLabelLinePath(path, shape) {
|
||
|
|
var smooth = shape.smooth;
|
||
|
|
var points = shape.points;
|
||
|
|
if (!points) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
path.moveTo(points[0][0], points[0][1]);
|
||
|
|
if (smooth > 0 && points.length >= 3) {
|
||
|
|
var len1 = vector.dist(points[0], points[1]);
|
||
|
|
var len2 = vector.dist(points[1], points[2]);
|
||
|
|
if (!len1 || !len2) {
|
||
|
|
path.lineTo(points[1][0], points[1][1]);
|
||
|
|
path.lineTo(points[2][0], points[2][1]);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
var moveLen = Math.min(len1, len2) * smooth;
|
||
|
|
var midPoint0 = vector.lerp([], points[1], points[0], moveLen / len1);
|
||
|
|
var midPoint2 = vector.lerp([], points[1], points[2], moveLen / len2);
|
||
|
|
var midPoint1 = vector.lerp([], midPoint0, midPoint2, 0.5);
|
||
|
|
path.bezierCurveTo(midPoint0[0], midPoint0[1], midPoint0[0], midPoint0[1], midPoint1[0], midPoint1[1]);
|
||
|
|
path.bezierCurveTo(midPoint2[0], midPoint2[1], midPoint2[0], midPoint2[1], points[2][0], points[2][1]);
|
||
|
|
} else {
|
||
|
|
for (var i = 1; i < points.length; i++) {
|
||
|
|
path.lineTo(points[i][0], points[i][1]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Create a label line if necessary and set it's style.
|
||
|
|
*/
|
||
|
|
export function setLabelLineStyle(targetEl, statesModels, defaultStyle) {
|
||
|
|
var labelLine = targetEl.getTextGuideLine();
|
||
|
|
var label = targetEl.getTextContent();
|
||
|
|
if (!label) {
|
||
|
|
// Not show label line if there is no label.
|
||
|
|
if (labelLine) {
|
||
|
|
targetEl.removeTextGuideLine();
|
||
|
|
}
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
var normalModel = statesModels.normal;
|
||
|
|
var showNormal = normalModel.get('show');
|
||
|
|
var labelIgnoreNormal = label.ignore;
|
||
|
|
for (var i = 0; i < DISPLAY_STATES.length; i++) {
|
||
|
|
var stateName = DISPLAY_STATES[i];
|
||
|
|
var stateModel = statesModels[stateName];
|
||
|
|
var isNormal = stateName === 'normal';
|
||
|
|
if (stateModel) {
|
||
|
|
var stateShow = stateModel.get('show');
|
||
|
|
var isLabelIgnored = isNormal ? labelIgnoreNormal : retrieve2(label.states[stateName] && label.states[stateName].ignore, labelIgnoreNormal);
|
||
|
|
if (isLabelIgnored // Not show when label is not shown in this state.
|
||
|
|
|| !retrieve2(stateShow, showNormal) // Use normal state by default if not set.
|
||
|
|
) {
|
||
|
|
var stateObj = isNormal ? labelLine : labelLine && labelLine.states[stateName];
|
||
|
|
if (stateObj) {
|
||
|
|
stateObj.ignore = true;
|
||
|
|
}
|
||
|
|
if (!!labelLine) {
|
||
|
|
setLabelLineState(labelLine, true, stateName, stateModel);
|
||
|
|
}
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
// Create labelLine if not exists
|
||
|
|
if (!labelLine) {
|
||
|
|
labelLine = new Polyline();
|
||
|
|
targetEl.setTextGuideLine(labelLine);
|
||
|
|
// Reset state of normal because it's new created.
|
||
|
|
// NOTE: NORMAL should always been the first!
|
||
|
|
if (!isNormal && (labelIgnoreNormal || !showNormal)) {
|
||
|
|
setLabelLineState(labelLine, true, 'normal', statesModels.normal);
|
||
|
|
}
|
||
|
|
// Use same state proxy.
|
||
|
|
if (targetEl.stateProxy) {
|
||
|
|
labelLine.stateProxy = targetEl.stateProxy;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
setLabelLineState(labelLine, false, stateName, stateModel);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (labelLine) {
|
||
|
|
defaults(labelLine.style, defaultStyle);
|
||
|
|
// Not fill.
|
||
|
|
labelLine.style.fill = null;
|
||
|
|
var showAbove = normalModel.get('showAbove');
|
||
|
|
var labelLineConfig = targetEl.textGuideLineConfig = targetEl.textGuideLineConfig || {};
|
||
|
|
labelLineConfig.showAbove = showAbove || false;
|
||
|
|
// Custom the buildPath.
|
||
|
|
labelLine.buildPath = buildLabelLinePath;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
export function getLabelLineStatesModels(itemModel, labelLineName) {
|
||
|
|
labelLineName = labelLineName || 'labelLine';
|
||
|
|
var statesModels = {
|
||
|
|
normal: itemModel.getModel(labelLineName)
|
||
|
|
};
|
||
|
|
for (var i = 0; i < SPECIAL_STATES.length; i++) {
|
||
|
|
var stateName = SPECIAL_STATES[i];
|
||
|
|
statesModels[stateName] = itemModel.getModel([stateName, labelLineName]);
|
||
|
|
}
|
||
|
|
return statesModels;
|
||
|
|
}
|