define(function (require) {
'use strict';
var zrUtil = require('zrender/core/util');
var graphic = require('../../util/graphic');
zrUtil.extend(require('../../model/Model').prototype, require('./barItemStyle'));
function fixLayoutWithLineWidth(layout, lineWidth) {
var signX = layout.width > 0 ? 1 : -1;
var signY = layout.height > 0 ? 1 : -1;
// In case width or height are too small.
lineWidth = Math.min(lineWidth, Math.abs(layout.width), Math.abs(layout.height));
layout.x += signX * lineWidth / 2;
layout.y += signY * lineWidth / 2;
layout.width -= signX * lineWidth;
layout.height -= signY * lineWidth;
}
return require('../../echarts').extendChartView({
type: 'bar',
render: function (seriesModel, ecModel, api) {
var coordinateSystemType = seriesModel.get('coordinateSystem');
if (coordinateSystemType === 'cartesian2d') {
this._renderOnCartesian(seriesModel, ecModel, api);
}
return this.group;
},
_renderOnCartesian: function (seriesModel, ecModel, api) {
var group = this.group;
var data = seriesModel.getData();
var oldData = this._data;
var cartesian = seriesModel.coordinateSystem;
var baseAxis = cartesian.getBaseAxis();
var isHorizontal = baseAxis.isHorizontal();
var enableAnimation = seriesModel.get('animation');
var barBorderWidthQuery = ['itemStyle', 'normal', 'barBorderWidth'];
function createRect(dataIndex, isUpdate) {
var layout = data.getItemLayout(dataIndex);
var lineWidth = data.getItemModel(dataIndex).get(barBorderWidthQuery) || 0;
fixLayoutWithLineWidth(layout, lineWidth);
var rect = new graphic.Rect({
shape: zrUtil.extend({}, layout)
});
// Animation
if (enableAnimation) {
var rectShape = rect.shape;
var animateProperty = isHorizontal ? 'height' : 'width';
var animateTarget = {};
rectShape[animateProperty] = 0;
animateTarget[animateProperty] = layout[animateProperty];
graphic[isUpdate? 'updateProps' : 'initProps'](rect, {
shape: animateTarget
}, seriesModel, dataIndex);
}
return rect;
}
data.diff(oldData)
.add(function (dataIndex) {
// ???
if (!data.hasValue(dataIndex)) {
return;
}
var rect = createRect(dataIndex);
data.setItemGraphicEl(dataIndex, rect);
group.add(rect);
})
.update(function (newIndex, oldIndex) {
var rect = oldData.getItemGraphicEl(oldIndex);
// ???
if (!data.hasValue(newIndex)) {
group.remove(rect);
return;
}
if (!rect) {
rect = createRect(newIndex, true);
}
var layout = data.getItemLayout(newIndex);
var lineWidth = data.getItemModel(newIndex).get(barBorderWidthQuery) || 0;
fixLayoutWithLineWidth(layout, lineWidth);
graphic.updateProps(rect, {
shape: layout
}, seriesModel, newIndex);
data.setItemGraphicEl(newIndex, rect);
// Add back
group.add(rect);
})
.remove(function (idx) {
var rect = oldData.getItemGraphicEl(idx);
if (rect) {
// Not show text when animating
rect.style.text = '';
graphic.updateProps(rect, {
shape: {
width: 0
}
}, seriesModel, idx, function () {
group.remove(rect);
});
}
})
.execute();
this._updateStyle(seriesModel, data, isHorizontal);
this._data = data;
},
_updateStyle: function (seriesModel, data, isHorizontal) {
function setLabel(style, model, color, labelText, labelPositionOutside) {
graphic.setText(style, model, color);
style.text = labelText;
if (style.textPosition === 'outside') {
style.textPosition = labelPositionOutside;
}
}
data.eachItemGraphicEl(function (rect, idx) {
var itemModel = data.getItemModel(idx);
var color = data.getItemVisual(idx, 'color');
var opacity = data.getItemVisual(idx, 'opacity');
var layout = data.getItemLayout(idx);
var itemStyleModel = itemModel.getModel('itemStyle.normal');
var hoverStyle = itemModel.getModel('itemStyle.emphasis').getBarItemStyle();
rect.setShape('r', itemStyleModel.get('barBorderRadius') || 0);
rect.useStyle(zrUtil.defaults(
{
fill: color,
opacity: opacity
},
itemStyleModel.getBarItemStyle()
));
var labelPositionOutside = isHorizontal
? (layout.height > 0 ? 'bottom' : 'top')
: (layout.width > 0 ? 'left' : 'right');
var labelModel = itemModel.getModel('label.normal');
var hoverLabelModel = itemModel.getModel('label.emphasis');
var rectStyle = rect.style;
if (labelModel.get('show')) {
setLabel(
rectStyle, labelModel, color,
zrUtil.retrieve(
seriesModel.getFormattedLabel(idx, 'normal'),
seriesModel.getRawValue(idx)
),
labelPositionOutside
);
}
else {
rectStyle.text = '';
}
if (hoverLabelModel.get('show')) {
setLabel(
hoverStyle, hoverLabelModel, color,
zrUtil.retrieve(
seriesModel.getFormattedLabel(idx, 'emphasis'),
seriesModel.getRawValue(idx)
),
labelPositionOutside
);
}
else {
hoverStyle.text = '';
}
graphic.setHoverStyle(rect, hoverStyle);
});
},
remove: function (ecModel, api) {
var group = this.group;
if (ecModel.get('animation')) {
if (this._data) {
this._data.eachItemGraphicEl(function (el) {
// Not show text when animating
el.style.text = '';
graphic.updateProps(el, {
shape: {
width: 0
}
}, ecModel, el.dataIndex, function () {
group.remove(el);
});
});
}
}
else {
group.removeAll();
}
}
});
});
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