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c3_chart_internal_fn.initBrush = function () {
var $$ = this, d3 = $$.d3;
$$.brush = d3.svg.brush().on("brush", function () { $$.redrawForBrush(); });
$$.brush.update = function () {
if ($$.context) { $$.context.select('.' + CLASS.brush).call(this); }
return this;
};
$$.brush.scale = function (scale) {
return $$.config.axis_rotated ? this.y(scale) : this.x(scale);
};
};
c3_chart_internal_fn.initSubchart = function () {
var $$ = this, config = $$.config,
context = $$.context = $$.svg.append("g").attr("transform", $$.getTranslate('context'));
context.style('visibility', config.subchart_show ? 'visible' : 'hidden');
// Define g for chart area
context.append('g')
.attr("clip-path", $$.clipPathForSubchart)
.attr('class', CLASS.chart);
// Define g for bar chart area
context.select('.' + CLASS.chart).append("g")
.attr("class", CLASS.chartBars);
// Define g for line chart area
context.select('.' + CLASS.chart).append("g")
.attr("class", CLASS.chartLines);
// Add extent rect for Brush
context.append("g")
.attr("clip-path", $$.clipPath)
.attr("class", CLASS.brush)
.call($$.brush);
// ATTENTION: This must be called AFTER chart added
// Add Axis
$$.axes.subx = context.append("g")
.attr("class", CLASS.axisX)
.attr("transform", $$.getTranslate('subx'))
.attr("clip-path", config.axis_rotated ? "" : $$.clipPathForXAxis);
};
c3_chart_internal_fn.updateTargetsForSubchart = function (targets) {
var $$ = this, context = $$.context, config = $$.config,
contextLineEnter, contextLineUpdate, contextBarEnter, contextBarUpdate,
classChartBar = $$.classChartBar.bind($$),
classBars = $$.classBars.bind($$),
classChartLine = $$.classChartLine.bind($$),
classLines = $$.classLines.bind($$),
classAreas = $$.classAreas.bind($$);
if (config.subchart_show) {
//-- Bar --//
contextBarUpdate = context.select('.' + CLASS.chartBars).selectAll('.' + CLASS.chartBar)
.data(targets)
.attr('class', classChartBar);
contextBarEnter = contextBarUpdate.enter().append('g')
.style('opacity', 0)
.attr('class', classChartBar);
// Bars for each data
contextBarEnter.append('g')
.attr("class", classBars);
//-- Line --//
contextLineUpdate = context.select('.' + CLASS.chartLines).selectAll('.' + CLASS.chartLine)
.data(targets)
.attr('class', classChartLine);
contextLineEnter = contextLineUpdate.enter().append('g')
.style('opacity', 0)
.attr('class', classChartLine);
// Lines for each data
contextLineEnter.append("g")
.attr("class", classLines);
// Area
contextLineEnter.append("g")
.attr("class", classAreas);
//-- Brush --//
context.selectAll('.' + CLASS.brush + ' rect')
.attr(config.axis_rotated ? "width" : "height", config.axis_rotated ? $$.width2 : $$.height2);
}
};
c3_chart_internal_fn.updateBarForSubchart = function (durationForExit) {
var $$ = this;
$$.contextBar = $$.context.selectAll('.' + CLASS.bars).selectAll('.' + CLASS.bar)
.data($$.barData.bind($$));
$$.contextBar.enter().append('path')
.attr("class", $$.classBar.bind($$))
.style("stroke", 'none')
.style("fill", $$.color);
$$.contextBar
.style("opacity", $$.initialOpacity.bind($$));
$$.contextBar.exit().transition().duration(durationForExit)
.style('opacity', 0)
.remove();
};
c3_chart_internal_fn.redrawBarForSubchart = function (drawBarOnSub, withTransition, duration) {
(withTransition ? this.contextBar.transition().duration(duration) : this.contextBar)
.attr('d', drawBarOnSub)
.style('opacity', 1);
};
c3_chart_internal_fn.updateLineForSubchart = function (durationForExit) {
var $$ = this;
$$.contextLine = $$.context.selectAll('.' + CLASS.lines).selectAll('.' + CLASS.line)
.data($$.lineData.bind($$));
$$.contextLine.enter().append('path')
.attr('class', $$.classLine.bind($$))
.style('stroke', $$.color);
$$.contextLine
.style("opacity", $$.initialOpacity.bind($$));
$$.contextLine.exit().transition().duration(durationForExit)
.style('opacity', 0)
.remove();
};
c3_chart_internal_fn.redrawLineForSubchart = function (drawLineOnSub, withTransition, duration) {
(withTransition ? this.contextLine.transition().duration(duration) : this.contextLine)
.attr("d", drawLineOnSub)
.style('opacity', 1);
};
c3_chart_internal_fn.updateAreaForSubchart = function (durationForExit) {
var $$ = this, d3 = $$.d3;
$$.contextArea = $$.context.selectAll('.' + CLASS.areas).selectAll('.' + CLASS.area)
.data($$.lineData.bind($$));
$$.contextArea.enter().append('path')
.attr("class", $$.classArea.bind($$))
.style("fill", $$.color)
.style("opacity", function () { $$.orgAreaOpacity = +d3.select(this).style('opacity'); return 0; });
$$.contextArea
.style("opacity", 0);
$$.contextArea.exit().transition().duration(durationForExit)
.style('opacity', 0)
.remove();
};
c3_chart_internal_fn.redrawAreaForSubchart = function (drawAreaOnSub, withTransition, duration) {
(withTransition ? this.contextArea.transition().duration(duration) : this.contextArea)
.attr("d", drawAreaOnSub)
.style("fill", this.color)
.style("opacity", this.orgAreaOpacity);
};
c3_chart_internal_fn.redrawSubchart = function (withSubchart, transitions, duration, durationForExit, areaIndices, barIndices, lineIndices) {
var $$ = this, d3 = $$.d3, config = $$.config,
drawAreaOnSub, drawBarOnSub, drawLineOnSub;
$$.context.style('visibility', config.subchart_show ? 'visible' : 'hidden');
// subchart
if (config.subchart_show) {
// reflect main chart to extent on subchart if zoomed
if (d3.event && d3.event.type === 'zoom') {
$$.brush.extent($$.x.orgDomain()).update();
}
// update subchart elements if needed
if (withSubchart) {
// extent rect
if (!$$.brush.empty()) {
$$.brush.extent($$.x.orgDomain()).update();
}
// setup drawer - MEMO: this must be called after axis updated
drawAreaOnSub = $$.generateDrawArea(areaIndices, true);
drawBarOnSub = $$.generateDrawBar(barIndices, true);
drawLineOnSub = $$.generateDrawLine(lineIndices, true);
$$.updateBarForSubchart(duration);
$$.updateLineForSubchart(duration);
$$.updateAreaForSubchart(duration);
$$.redrawBarForSubchart(drawBarOnSub, duration, duration);
$$.redrawLineForSubchart(drawLineOnSub, duration, duration);
$$.redrawAreaForSubchart(drawAreaOnSub, duration, duration);
}
}
};
c3_chart_internal_fn.redrawForBrush = function () {
var $$ = this, x = $$.x;
$$.redraw({
withTransition: false,
withY: $$.config.zoom_rescale,
withSubchart: false,
withUpdateXDomain: true,
withDimension: false
});
$$.config.subchart_onbrush.call($$.api, x.orgDomain());
};
c3_chart_internal_fn.transformContext = function (withTransition, transitions) {
var $$ = this, subXAxis;
if (transitions && transitions.axisSubX) {
subXAxis = transitions.axisSubX;
} else {
subXAxis = $$.context.select('.' + CLASS.axisX);
if (withTransition) { subXAxis = subXAxis.transition(); }
}
$$.context.attr("transform", $$.getTranslate('context'));
subXAxis.attr("transform", $$.getTranslate('subx'));
};
c3_chart_internal_fn.getDefaultExtent = function () {
var $$ = this, config = $$.config,
extent = isFunction(config.axis_x_extent) ? config.axis_x_extent($$.getXDomain($$.data.targets)) : config.axis_x_extent;
if ($$.isTimeSeries()) {
extent = [$$.parseDate(extent[0]), $$.parseDate(extent[1])];
}
return extent;
};
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