echarts SliderTimelineView 源码
echarts SliderTimelineView 代码
文件路径：/src/component/timeline/SliderTimelineView.ts
/*
* 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 BoundingRect, { RectLike } from 'zrender/src/core/BoundingRect';
import * as matrix from 'zrender/src/core/matrix';
import * as graphic from '../../util/graphic';
import { createTextStyle } from '../../label/labelStyle';
import * as layout from '../../util/layout';
import TimelineView from './TimelineView';
import TimelineAxis from './TimelineAxis';
import {createSymbol, normalizeSymbolOffset, normalizeSymbolSize} from '../../util/symbol';
import * as numberUtil from '../../util/number';
import GlobalModel from '../../model/Global';
import ExtensionAPI from '../../core/ExtensionAPI';
import { merge, each, extend, isString, bind, defaults, retrieve2 } from 'zrender/src/core/util';
import SliderTimelineModel from './SliderTimelineModel';
import { LayoutOrient, ZRTextAlign, ZRTextVerticalAlign, ZRElementEvent, ScaleTick } from '../../util/types';
import TimelineModel, { TimelineDataItemOption, TimelineCheckpointStyle } from './TimelineModel';
import { TimelineChangePayload, TimelinePlayChangePayload } from './timelineAction';
import Model from '../../model/Model';
import { PathProps, PathStyleProps } from 'zrender/src/graphic/Path';
import Scale from '../../scale/Scale';
import OrdinalScale from '../../scale/Ordinal';
import TimeScale from '../../scale/Time';
import IntervalScale from '../../scale/Interval';
import { VectorArray } from 'zrender/src/core/vector';
import { parsePercent } from 'zrender/src/contain/text';
import { makeInner } from '../../util/model';
import { getECData } from '../../util/innerStore';
import { enableHoverEmphasis } from '../../util/states';
import { createTooltipMarkup } from '../tooltip/tooltipMarkup';
import Displayable from 'zrender/src/graphic/Displayable';
const PI = Math.PI;
type TimelineSymbol = ReturnType<typeof createSymbol>;
type RenderMethodName = '_renderAxisLine' | '_renderAxisTick' | '_renderControl' | '_renderCurrentPointer';
type ControlName = 'play' | 'stop' | 'next' | 'prev';
type ControlIconName = 'playIcon' | 'stopIcon' | 'nextIcon' | 'prevIcon';
const labelDataIndexStore = makeInner<{
dataIndex: number
}, graphic.Text>();
interface LayoutInfo {
viewRect: BoundingRect
mainLength: number
orient: LayoutOrient
rotation: number
labelRotation: number
labelPosOpt: number | '+' | '-'
labelAlign: ZRTextAlign
labelBaseline: ZRTextVerticalAlign
playPosition: number[]
prevBtnPosition: number[]
nextBtnPosition: number[]
axisExtent: number[]
controlSize: number
controlGap: number
}
class SliderTimelineView extends TimelineView {
static type = 'timeline.slider';
type = SliderTimelineView.type;
api: ExtensionAPI;
model: SliderTimelineModel;
ecModel: GlobalModel;
private _axis: TimelineAxis;
private _viewRect: BoundingRect;
private _timer: number;
private _currentPointer: TimelineSymbol;
private _progressLine: graphic.Line;
private _mainGroup: graphic.Group;
private _labelGroup: graphic.Group;
private _tickSymbols: graphic.Path[];
private _tickLabels: graphic.Text[];
init(ecModel: GlobalModel, api: ExtensionAPI) {
this.api = api;
}
/**
* @override
*/
render(timelineModel: SliderTimelineModel, ecModel: GlobalModel, api: ExtensionAPI) {
this.model = timelineModel;
this.api = api;
this.ecModel = ecModel;
this.group.removeAll();
if (timelineModel.get('show', true)) {
const layoutInfo = this._layout(timelineModel, api);
const mainGroup = this._createGroup('_mainGroup');
const labelGroup = this._createGroup('_labelGroup');
const axis = this._axis = this._createAxis(layoutInfo, timelineModel);
timelineModel.formatTooltip = function (dataIndex: number) {
const name = axis.scale.getLabel({value: dataIndex});
return createTooltipMarkup('nameValue', { noName: true, value: name });
};
each(
['AxisLine', 'AxisTick', 'Control', 'CurrentPointer'] as const,
function (name) {
this['_render' + name as RenderMethodName](layoutInfo, mainGroup, axis, timelineModel);
},
this
);
this._renderAxisLabel(layoutInfo, labelGroup, axis, timelineModel);
this._position(layoutInfo, timelineModel);
}
this._doPlayStop();
this._updateTicksStatus();
}
/**
* @override
*/
remove() {
this._clearTimer();
this.group.removeAll();
}
/**
* @override
*/
dispose() {
this._clearTimer();
}
private _layout(timelineModel: SliderTimelineModel, api: ExtensionAPI): LayoutInfo {
const labelPosOpt = timelineModel.get(['label', 'position']);
const orient = timelineModel.get('orient');
const viewRect = getViewRect(timelineModel, api);
let parsedLabelPos: number | '+' | '-';
// Auto label offset.
if (labelPosOpt == null || labelPosOpt === 'auto') {
parsedLabelPos = orient === 'horizontal'
? ((viewRect.y + viewRect.height / 2) < api.getHeight() / 2 ? '-' : '+')
: ((viewRect.x + viewRect.width / 2) < api.getWidth() / 2 ? '+' : '-');
}
else if (isString(labelPosOpt)) {
parsedLabelPos = ({
horizontal: {top: '-', bottom: '+'},
vertical: {left: '-', right: '+'}
} as const)[orient][labelPosOpt];
}
else {
// is number
parsedLabelPos = labelPosOpt;
}
const labelAlignMap = {
horizontal: 'center',
vertical: (parsedLabelPos >= 0 || parsedLabelPos === '+') ? 'left' : 'right'
};
const labelBaselineMap = {
horizontal: (parsedLabelPos >= 0 || parsedLabelPos === '+') ? 'top' : 'bottom',
vertical: 'middle'
};
const rotationMap = {
horizontal: 0,
vertical: PI / 2
};
// Position
const mainLength = orient === 'vertical' ? viewRect.height : viewRect.width;
const controlModel = timelineModel.getModel('controlStyle');
const showControl = controlModel.get('show', true);
const controlSize = showControl ? controlModel.get('itemSize') : 0;
const controlGap = showControl ? controlModel.get('itemGap') : 0;
const sizePlusGap = controlSize + controlGap;
// Special label rotate.
let labelRotation = timelineModel.get(['label', 'rotate']) || 0;
labelRotation = labelRotation * PI / 180; // To radian.
let playPosition: number[];
let prevBtnPosition: number[];
let nextBtnPosition: number[];
const controlPosition = controlModel.get('position', true);
const showPlayBtn = showControl && controlModel.get('showPlayBtn', true);
const showPrevBtn = showControl && controlModel.get('showPrevBtn', true);
const showNextBtn = showControl && controlModel.get('showNextBtn', true);
let xLeft = 0;
let xRight = mainLength;
// position[0] means left, position[1] means middle.
if (controlPosition === 'left' || controlPosition === 'bottom') {
showPlayBtn && (playPosition = [0, 0], xLeft += sizePlusGap);
showPrevBtn && (prevBtnPosition = [xLeft, 0], xLeft += sizePlusGap);
showNextBtn && (nextBtnPosition = [xRight - controlSize, 0], xRight -= sizePlusGap);
}
else { // 'top' 'right'
showPlayBtn && (playPosition = [xRight - controlSize, 0], xRight -= sizePlusGap);
showPrevBtn && (prevBtnPosition = [0, 0], xLeft += sizePlusGap);
showNextBtn && (nextBtnPosition = [xRight - controlSize, 0], xRight -= sizePlusGap);
}
const axisExtent = [xLeft, xRight];
if (timelineModel.get('inverse')) {
axisExtent.reverse();
}
return {
viewRect: viewRect,
mainLength: mainLength,
orient: orient,
rotation: rotationMap[orient],
labelRotation: labelRotation,
labelPosOpt: parsedLabelPos,
labelAlign: timelineModel.get(['label', 'align']) || labelAlignMap[orient] as ZRTextAlign,
labelBaseline: timelineModel.get(['label', 'verticalAlign'])
|| timelineModel.get(['label', 'baseline'])
|| labelBaselineMap[orient] as ZRTextVerticalAlign,
// Based on mainGroup.
playPosition: playPosition,
prevBtnPosition: prevBtnPosition,
nextBtnPosition: nextBtnPosition,
axisExtent: axisExtent,
controlSize: controlSize,
controlGap: controlGap
};
}
private _position(layoutInfo: LayoutInfo, timelineModel: SliderTimelineModel) {
// Position is be called finally, because bounding rect is needed for
// adapt content to fill viewRect (auto adapt offset).
// Timeline may be not all in the viewRect when 'offset' is specified
// as a number, because it is more appropriate that label aligns at
// 'offset' but not the other edge defined by viewRect.
const mainGroup = this._mainGroup;
const labelGroup = this._labelGroup;
let viewRect = layoutInfo.viewRect;
if (layoutInfo.orient === 'vertical') {
// transform to horizontal, inverse rotate by left-top point.
const m = matrix.create();
const rotateOriginX = viewRect.x;
const rotateOriginY = viewRect.y + viewRect.height;
matrix.translate(m, m, [-rotateOriginX, -rotateOriginY]);
matrix.rotate(m, m, -PI / 2);
matrix.translate(m, m, [rotateOriginX, rotateOriginY]);
viewRect = viewRect.clone();
viewRect.applyTransform(m);
}
const viewBound = getBound(viewRect);
const mainBound = getBound(mainGroup.getBoundingRect());
const labelBound = getBound(labelGroup.getBoundingRect());
const mainPosition = [mainGroup.x, mainGroup.y];
const labelsPosition = [labelGroup.x, labelGroup.y];
labelsPosition[0] = mainPosition[0] = viewBound[0][0];
const labelPosOpt = layoutInfo.labelPosOpt;
if (labelPosOpt == null || isString(labelPosOpt)) { // '+' or '-'
const mainBoundIdx = labelPosOpt === '+' ? 0 : 1;
toBound(mainPosition, mainBound, viewBound, 1, mainBoundIdx);
toBound(labelsPosition, labelBound, viewBound, 1, 1 - mainBoundIdx);
}
else {
const mainBoundIdx = labelPosOpt >= 0 ? 0 : 1;
toBound(mainPosition, mainBound, viewBound, 1, mainBoundIdx);
labelsPosition[1] = mainPosition[1] + labelPosOpt;
}
mainGroup.setPosition(mainPosition);
labelGroup.setPosition(labelsPosition);
mainGroup.rotation = labelGroup.rotation = layoutInfo.rotation;
setOrigin(mainGroup);
setOrigin(labelGroup);
function setOrigin(targetGroup: graphic.Group) {
targetGroup.originX = viewBound[0][0] - targetGroup.x;
targetGroup.originY = viewBound[1][0] - targetGroup.y;
}
function getBound(rect: RectLike) {
// [[xmin, xmax], [ymin, ymax]]
return [
[rect.x, rect.x + rect.width],
[rect.y, rect.y + rect.height]
];
}
function toBound(fromPos: VectorArray, from: number[][], to: number[][], dimIdx: number, boundIdx: number) {
fromPos[dimIdx] += to[dimIdx][boundIdx] - from[dimIdx][boundIdx];
}
}
private _createAxis(layoutInfo: LayoutInfo, timelineModel: SliderTimelineModel) {
const data = timelineModel.getData();
const axisType = timelineModel.get('axisType');
const scale = createScaleByModel(timelineModel, axisType);
// Customize scale. The `tickValue` is `dataIndex`.
scale.getTicks = function () {
return data.mapArray(['value'], function (value: number) {
return {value};
});
};
const dataExtent = data.getDataExtent('value');
scale.setExtent(dataExtent[0], dataExtent[1]);
scale.calcNiceTicks();
const axis = new TimelineAxis('value', scale, layoutInfo.axisExtent as [number, number], axisType);
axis.model = timelineModel;
return axis;
}
private _createGroup(key: '_mainGroup' | '_labelGroup') {
const newGroup = this[key] = new graphic.Group();
this.group.add(newGroup);
return newGroup;
}
private _renderAxisLine(
layoutInfo: LayoutInfo,
group: graphic.Group,
axis: TimelineAxis,
timelineModel: SliderTimelineModel
) {
const axisExtent = axis.getExtent();
if (!timelineModel.get(['lineStyle', 'show'])) {
return;
}
const line = new graphic.Line({
shape: {
x1: axisExtent[0], y1: 0,
x2: axisExtent[1], y2: 0
},
style: extend(
{lineCap: 'round'},
timelineModel.getModel('lineStyle').getLineStyle()
),
silent: true,
z2: 1
});
group.add(line);
const progressLine = this._progressLine = new graphic.Line({
shape: {
x1: axisExtent[0],
x2: this._currentPointer
? this._currentPointer.x : axisExtent[0],
y1: 0, y2: 0
},
style: defaults(
{ lineCap: 'round', lineWidth: line.style.lineWidth } as PathStyleProps,
timelineModel.getModel(['progress', 'lineStyle']).getLineStyle()
),
silent: true,
z2: 1
});
group.add(progressLine);
}
private _renderAxisTick(
layoutInfo: LayoutInfo,
group: graphic.Group,
axis: TimelineAxis,
timelineModel: SliderTimelineModel
) {
const data = timelineModel.getData();
// Show all ticks, despite ignoring strategy.
const ticks = axis.scale.getTicks();
this._tickSymbols = [];
// The value is dataIndex, see the customized scale.
each(ticks, (tick: ScaleTick) => {
const tickCoord = axis.dataToCoord(tick.value);
const itemModel = data.getItemModel<TimelineDataItemOption>(tick.value);
const itemStyleModel = itemModel.getModel('itemStyle');
const hoverStyleModel = itemModel.getModel(['emphasis', 'itemStyle']);
const progressStyleModel = itemModel.getModel(['progress', 'itemStyle']);
const symbolOpt = {
x: tickCoord,
y: 0,
onclick: bind(this._changeTimeline, this, tick.value)
};
const el = giveSymbol(itemModel, itemStyleModel, group, symbolOpt);
el.ensureState('emphasis').style = hoverStyleModel.getItemStyle();
el.ensureState('progress').style = progressStyleModel.getItemStyle();
enableHoverEmphasis(el);
const ecData = getECData(el);
if (itemModel.get('tooltip')) {
ecData.dataIndex = tick.value;
ecData.dataModel = timelineModel;
}
else {
ecData.dataIndex = ecData.dataModel = null;
}
this._tickSymbols.push(el);
});
}
private _renderAxisLabel(
layoutInfo: LayoutInfo,
group: graphic.Group,
axis: TimelineAxis,
timelineModel: SliderTimelineModel
) {
const labelModel = axis.getLabelModel();
if (!labelModel.get('show')) {
return;
}
const data = timelineModel.getData();
const labels = axis.getViewLabels();
this._tickLabels = [];
each(labels, (labelItem) => {
// The tickValue is dataIndex, see the customized scale.
const dataIndex = labelItem.tickValue;
const itemModel = data.getItemModel<TimelineDataItemOption>(dataIndex);
const normalLabelModel = itemModel.getModel('label');
const hoverLabelModel = itemModel.getModel(['emphasis', 'label']);
const progressLabelModel = itemModel.getModel(['progress', 'label']);
const tickCoord = axis.dataToCoord(labelItem.tickValue);
const textEl = new graphic.Text({
x: tickCoord,
y: 0,
rotation: layoutInfo.labelRotation - layoutInfo.rotation,
onclick: bind(this._changeTimeline, this, dataIndex),
silent: false,
style: createTextStyle(normalLabelModel, {
text: labelItem.formattedLabel,
align: layoutInfo.labelAlign,
verticalAlign: layoutInfo.labelBaseline
})
});
textEl.ensureState('emphasis').style = createTextStyle(hoverLabelModel);
textEl.ensureState('progress').style = createTextStyle(progressLabelModel);
group.add(textEl);
enableHoverEmphasis(textEl);
labelDataIndexStore(textEl).dataIndex = dataIndex;
this._tickLabels.push(textEl);
});
}
private _renderControl(
layoutInfo: LayoutInfo,
group: graphic.Group,
axis: TimelineAxis,
timelineModel: SliderTimelineModel
) {
const controlSize = layoutInfo.controlSize;
const rotation = layoutInfo.rotation;
const itemStyle = timelineModel.getModel('controlStyle').getItemStyle();
const hoverStyle = timelineModel.getModel(['emphasis', 'controlStyle']).getItemStyle();
const playState = timelineModel.getPlayState();
const inverse = timelineModel.get('inverse', true);
makeBtn(
layoutInfo.nextBtnPosition,
'next',
bind(this._changeTimeline, this, inverse ? '-' : '+')
);
makeBtn(
layoutInfo.prevBtnPosition,
'prev',
bind(this._changeTimeline, this, inverse ? '+' : '-')
);
makeBtn(
layoutInfo.playPosition,
(playState ? 'stop' : 'play'),
bind(this._handlePlayClick, this, !playState),
true
);
function makeBtn(
position: number[],
iconName: ControlName,
onclick: () => void,
willRotate?: boolean
) {
if (!position) {
return;
}
const iconSize = parsePercent(
retrieve2(timelineModel.get(['controlStyle', iconName + 'BtnSize' as any]), controlSize),
controlSize
);
const rect = [0, -iconSize / 2, iconSize, iconSize];
const btn = makeControlIcon(timelineModel, iconName + 'Icon' as ControlIconName, rect, {
x: position[0],
y: position[1],
originX: controlSize / 2,
originY: 0,
rotation: willRotate ? -rotation : 0,
rectHover: true,
style: itemStyle,
onclick: onclick
});
btn.ensureState('emphasis').style = hoverStyle;
group.add(btn);
enableHoverEmphasis(btn);
}
}
private _renderCurrentPointer(
layoutInfo: LayoutInfo,
group: graphic.Group,
axis: TimelineAxis,
timelineModel: SliderTimelineModel
) {
const data = timelineModel.getData();
const currentIndex = timelineModel.getCurrentIndex();
const pointerModel = data.getItemModel<TimelineDataItemOption>(currentIndex)
.getModel('checkpointStyle');
const me = this;
const callback = {
onCreate(pointer: TimelineSymbol) {
pointer.draggable = true;
pointer.drift = bind(me._handlePointerDrag, me);
pointer.ondragend = bind(me._handlePointerDragend, me);
pointerMoveTo(pointer, me._progressLine, currentIndex, axis, timelineModel, true);
},
onUpdate(pointer: TimelineSymbol) {
pointerMoveTo(pointer, me._progressLine, currentIndex, axis, timelineModel);
}
};
// Reuse when exists, for animation and drag.
this._currentPointer = giveSymbol(
pointerModel, pointerModel, this._mainGroup, {}, this._currentPointer, callback
);
}
private _handlePlayClick(nextState: boolean) {
this._clearTimer();
this.api.dispatchAction({
type: 'timelinePlayChange',
playState: nextState,
from: this.uid
} as TimelinePlayChangePayload);
}
private _handlePointerDrag(dx: number, dy: number, e: ZRElementEvent) {
this._clearTimer();
this._pointerChangeTimeline([e.offsetX, e.offsetY]);
}
private _handlePointerDragend(e: ZRElementEvent) {
this._pointerChangeTimeline([e.offsetX, e.offsetY], true);
}
private _pointerChangeTimeline(mousePos: number[], trigger?: boolean) {
let toCoord = this._toAxisCoord(mousePos)[0];
const axis = this._axis;
const axisExtent = numberUtil.asc(axis.getExtent().slice());
toCoord > axisExtent[1] && (toCoord = axisExtent[1]);
toCoord < axisExtent[0] && (toCoord = axisExtent[0]);
this._currentPointer.x = toCoord;
this._currentPointer.markRedraw();
const progressLine = this._progressLine;
if (progressLine) {
progressLine.shape.x2 = toCoord;
progressLine.dirty();
}
const targetDataIndex = this._findNearestTick(toCoord);
const timelineModel = this.model;
if (trigger || (
targetDataIndex !== timelineModel.getCurrentIndex()
&& timelineModel.get('realtime')
)) {
this._changeTimeline(targetDataIndex);
}
}
private _doPlayStop() {
this._clearTimer();
if (this.model.getPlayState()) {
this._timer = setTimeout(
() => {
// Do not cache
const timelineModel = this.model;
this._changeTimeline(
timelineModel.getCurrentIndex()
+ (timelineModel.get('rewind', true) ? -1 : 1)
);
},
this.model.get('playInterval')
) as any;
}
}
private _toAxisCoord(vertex: number[]) {
const trans = this._mainGroup.getLocalTransform();
return graphic.applyTransform(vertex, trans, true);
}
private _findNearestTick(axisCoord: number) {
const data = this.model.getData();
let dist = Infinity;
let targetDataIndex;
const axis = this._axis;
data.each(['value'], function (value, dataIndex) {
const coord = axis.dataToCoord(value);
const d = Math.abs(coord - axisCoord);
if (d < dist) {
dist = d;
targetDataIndex = dataIndex;
}
});
return targetDataIndex;
}
private _clearTimer() {
if (this._timer) {
clearTimeout(this._timer);
this._timer = null;
}
}
private _changeTimeline(nextIndex: number | '+' | '-') {
const currentIndex = this.model.getCurrentIndex();
if (nextIndex === '+') {
nextIndex = currentIndex + 1;
}
else if (nextIndex === '-') {
nextIndex = currentIndex - 1;
}
this.api.dispatchAction({
type: 'timelineChange',
currentIndex: nextIndex,
from: this.uid
} as TimelineChangePayload);
}
private _updateTicksStatus() {
const currentIndex = this.model.getCurrentIndex();
const tickSymbols = this._tickSymbols;
const tickLabels = this._tickLabels;
if (tickSymbols) {
for (let i = 0; i < tickSymbols.length; i++) {
tickSymbols && tickSymbols[i]
&& tickSymbols[i].toggleState('progress', i < currentIndex);
}
}
if (tickLabels) {
for (let i = 0; i < tickLabels.length; i++) {
tickLabels && tickLabels[i]
&& tickLabels[i].toggleState(
'progress', labelDataIndexStore(tickLabels[i]).dataIndex <= currentIndex
);
}
}
}
}
function createScaleByModel(model: SliderTimelineModel, axisType?: string): Scale {
axisType = axisType || model.get('type');
if (axisType) {
switch (axisType) {
// Buildin scale
case 'category':
return new OrdinalScale({
ordinalMeta: model.getCategories(),
extent: [Infinity, -Infinity]
});
case 'time':
return new TimeScale({
locale: model.ecModel.getLocaleModel(),
useUTC: model.ecModel.get('useUTC')
});
default:
// default to be value
return new IntervalScale();
}
}
}
function getViewRect(model: SliderTimelineModel, api: ExtensionAPI) {
return layout.getLayoutRect(
model.getBoxLayoutParams(),
{
width: api.getWidth(),
height: api.getHeight()
},
model.get('padding')
);
}
function makeControlIcon(
timelineModel: TimelineModel,
objPath: ControlIconName,
rect: number[],
opts: PathProps
) {
const style = opts.style;
const icon = graphic.createIcon(
timelineModel.get(['controlStyle', objPath]),
opts || {},
new BoundingRect(rect[0], rect[1], rect[2], rect[3])
);
// TODO createIcon won't use style in opt.
if (style) {
(icon as Displayable).setStyle(style);
}
return icon;
}
/**
* Create symbol or update symbol
* opt: basic position and event handlers
*/
function giveSymbol(
hostModel: Model<TimelineDataItemOption | TimelineCheckpointStyle>,
itemStyleModel: Model<TimelineDataItemOption['itemStyle'] | TimelineCheckpointStyle>,
group: graphic.Group,
opt: PathProps,
symbol?: TimelineSymbol,
callback?: {
onCreate?: (symbol: TimelineSymbol) => void
onUpdate?: (symbol: TimelineSymbol) => void
}
) {
const color = itemStyleModel.get('color');
if (!symbol) {
const symbolType = hostModel.get('symbol');
symbol = createSymbol(symbolType, -1, -1, 2, 2, color);
symbol.setStyle('strokeNoScale', true);
group.add(symbol);
callback && callback.onCreate(symbol);
}
else {
symbol.setColor(color);
group.add(symbol); // Group may be new, also need to add.
callback && callback.onUpdate(symbol);
}
// Style
const itemStyle = itemStyleModel.getItemStyle(['color']);
symbol.setStyle(itemStyle);
// Transform and events.
opt = merge({
rectHover: true,
z2: 100
}, opt, true);
const symbolSize = normalizeSymbolSize(hostModel.get('symbolSize'));
opt.scaleX = symbolSize[0] / 2;
opt.scaleY = symbolSize[1] / 2;
const symbolOffset = normalizeSymbolOffset(hostModel.get('symbolOffset'), symbolSize);
if (symbolOffset) {
opt.x = (opt.x || 0) + symbolOffset[0];
opt.y = (opt.y || 0) + symbolOffset[1];
}
const symbolRotate = hostModel.get('symbolRotate');
opt.rotation = (symbolRotate || 0) * Math.PI / 180 || 0;
symbol.attr(opt);
// FIXME
// (1) When symbol.style.strokeNoScale is true and updateTransform is not performed,
// getBoundingRect will return wrong result.
// (This is supposed to be resolved in zrender, but it is a little difficult to
// leverage performance and auto updateTransform)
// (2) All of ancesters of symbol do not scale, so we can just updateTransform symbol.
symbol.updateTransform();
return symbol;
}
function pointerMoveTo(
pointer: TimelineSymbol,
progressLine: graphic.Line,
dataIndex: number,
axis: TimelineAxis,
timelineModel: SliderTimelineModel,
noAnimation?: boolean
) {
if (pointer.dragging) {
return;
}
const pointerModel = timelineModel.getModel('checkpointStyle');
const toCoord = axis.dataToCoord(timelineModel.getData().get('value', dataIndex));
if (noAnimation || !pointerModel.get('animation', true)) {
pointer.attr({
x: toCoord,
y: 0
});
progressLine && progressLine.attr({
shape: { x2: toCoord }
});
}
else {
const animationCfg = {
duration: pointerModel.get('animationDuration', true),
easing: pointerModel.get('animationEasing', true)
};
pointer.stopAnimation(null, true);
pointer.animateTo({
x: toCoord,
y: 0
}, animationCfg);
progressLine && progressLine.animateTo({
shape: { x2: toCoord }
}, animationCfg);
}
}
export default SliderTimelineView;
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