Viewing File: /home/cienp/public_html/portal/vendors/echarts/src/component/visualMap/PiecewiseView.js
define(function(require) {
var VisualMapView = require('./VisualMapView');
var zrUtil = require('zrender/core/util');
var graphic = require('../../util/graphic');
var symbolCreators = require('../../util/symbol');
var layout = require('../../util/layout');
var helper = require('./helper');
var PiecewiseVisualMapView = VisualMapView.extend({
type: 'visualMap.piecewise',
/**
* @protected
* @override
*/
doRender: function () {
var thisGroup = this.group;
thisGroup.removeAll();
var visualMapModel = this.visualMapModel;
var textGap = visualMapModel.get('textGap');
var textStyleModel = visualMapModel.textStyleModel;
var textFont = textStyleModel.getFont();
var textFill = textStyleModel.getTextColor();
var itemAlign = this._getItemAlign();
var itemSize = visualMapModel.itemSize;
var viewData = this._getViewData();
var showLabel = !viewData.endsText;
var showEndsText = !showLabel;
showEndsText && this._renderEndsText(thisGroup, viewData.endsText[0], itemSize);
zrUtil.each(viewData.viewPieceList, renderItem, this);
showEndsText && this._renderEndsText(thisGroup, viewData.endsText[1], itemSize);
layout.box(
visualMapModel.get('orient'), thisGroup, visualMapModel.get('itemGap')
);
this.renderBackground(thisGroup);
this.positionGroup(thisGroup);
function renderItem(item) {
var piece = item.piece;
var itemGroup = new graphic.Group();
itemGroup.onclick = zrUtil.bind(this._onItemClick, this, piece);
this._enableHoverLink(itemGroup, item.indexInModelPieceList);
var representValue = this._getRepresentValue(piece);
this._createItemSymbol(
itemGroup, representValue, [0, 0, itemSize[0], itemSize[1]]
);
if (showLabel) {
var visualState = this.visualMapModel.getValueState(representValue);
itemGroup.add(new graphic.Text({
style: {
x: itemAlign === 'right' ? -textGap : itemSize[0] + textGap,
y: itemSize[1] / 2,
text: piece.text,
textVerticalAlign: 'middle',
textAlign: itemAlign,
textFont: textFont,
fill: textFill,
opacity: visualState === 'outOfRange' ? 0.5 : 1
}
}));
}
thisGroup.add(itemGroup);
}
},
/**
* @private
*/
_enableHoverLink: function (itemGroup, pieceIndex) {
itemGroup
.on('mouseover', zrUtil.bind(onHoverLink, this, 'highlight'))
.on('mouseout', zrUtil.bind(onHoverLink, this, 'downplay'));
function onHoverLink(method) {
var visualMapModel = this.visualMapModel;
visualMapModel.option.hoverLink && this.api.dispatchAction({
type: method,
batch: helper.convertDataIndicesToBatch(
visualMapModel.findTargetDataIndices(pieceIndex)
)
});
}
},
/**
* @private
*/
_getItemAlign: function () {
var visualMapModel = this.visualMapModel;
var modelOption = visualMapModel.option;
if (modelOption.orient === 'vertical') {
return helper.getItemAlign(
visualMapModel, this.api, visualMapModel.itemSize
);
}
else { // horizontal, most case left unless specifying right.
var align = modelOption.align;
if (!align || align === 'auto') {
align = 'left';
}
return align;
}
},
/**
* @private
*/
_renderEndsText: function (group, text, itemSize) {
if (!text) {
return;
}
var itemGroup = new graphic.Group();
var textStyleModel = this.visualMapModel.textStyleModel;
itemGroup.add(new graphic.Text({
style: {
x: itemSize[0] / 2,
y: itemSize[1] / 2,
textVerticalAlign: 'middle',
textAlign: 'center',
text: text,
textFont: textStyleModel.getFont(),
fill: textStyleModel.getTextColor()
}
}));
group.add(itemGroup);
},
/**
* @private
* @return {Object} {peiceList, endsText} The order is the same as screen pixel order.
*/
_getViewData: function () {
var visualMapModel = this.visualMapModel;
var viewPieceList = zrUtil.map(visualMapModel.getPieceList(), function (piece, index) {
return {piece: piece, indexInModelPieceList: index};
});
var endsText = visualMapModel.get('text');
// Consider orient and inverse.
var orient = visualMapModel.get('orient');
var inverse = visualMapModel.get('inverse');
// Order of model pieceList is always [low, ..., high]
if (orient === 'horizontal' ? inverse : !inverse) {
viewPieceList.reverse();
}
// Origin order of endsText is [high, low]
else if (endsText) {
endsText = endsText.slice().reverse();
}
return {viewPieceList: viewPieceList, endsText: endsText};
},
/**
* @private
*/
_getRepresentValue: function (piece) {
var representValue;
if (this.visualMapModel.isCategory()) {
representValue = piece.value;
}
else {
if (piece.value != null) {
representValue = piece.value;
}
else {
var pieceInterval = piece.interval || [];
representValue = (pieceInterval[0] + pieceInterval[1]) / 2;
}
}
return representValue;
},
/**
* @private
*/
_createItemSymbol: function (group, representValue, shapeParam) {
group.add(symbolCreators.createSymbol(
this.getControllerVisual(representValue, 'symbol'),
shapeParam[0], shapeParam[1], shapeParam[2], shapeParam[3],
this.getControllerVisual(representValue, 'color')
));
},
/**
* @private
*/
_onItemClick: function (piece) {
var visualMapModel = this.visualMapModel;
var option = visualMapModel.option;
var selected = zrUtil.clone(option.selected);
var newKey = visualMapModel.getSelectedMapKey(piece);
if (option.selectedMode === 'single') {
selected[newKey] = true;
zrUtil.each(selected, function (o, key) {
selected[key] = key === newKey;
});
}
else {
selected[newKey] = !selected[newKey];
}
this.api.dispatchAction({
type: 'selectDataRange',
from: this.uid,
visualMapId: this.visualMapModel.id,
selected: selected
});
}
});
return PiecewiseVisualMapView;
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