/**
* @file Data zoom processor
*/
define(function (require) {
var echarts = require('../../echarts');
echarts.registerProcessor('filter', function (ecModel, api) {
ecModel.eachComponent('dataZoom', function (dataZoomModel) {
// We calculate window and reset axis here but not in model
// init stage and not after action dispatch handler, because
// reset should be called after seriesData.restoreData.
dataZoomModel.eachTargetAxis(resetSingleAxis);
// Caution: data zoom filtering is order sensitive when using
// percent range and no min/max/scale set on axis.
// For example, we have dataZoom definition:
// [
// {xAxisIndex: 0, start: 30, end: 70},
// {yAxisIndex: 0, start: 20, end: 80}
// ]
// In this case, [20, 80] of y-dataZoom should be based on data
// that have filtered by x-dataZoom using range of [30, 70],
// but should not be based on full raw data. Thus sliding
// x-dataZoom will change both ranges of xAxis and yAxis,
// while sliding y-dataZoom will only change the range of yAxis.
// So we should filter x-axis after reset x-axis immediately,
// and then reset y-axis and filter y-axis.
dataZoomModel.eachTargetAxis(filterSingleAxis);
});
ecModel.eachComponent('dataZoom', function (dataZoomModel) {
// Fullfill all of the range props so that user
// is able to get them from chart.getOption().
var axisProxy = dataZoomModel.findRepresentativeAxisProxy();
var percentRange = axisProxy.getDataPercentWindow();
var valueRange = axisProxy.getDataValueWindow();
dataZoomModel.setRawRange({
start: percentRange[0],
end: percentRange[1],
startValue: valueRange[0],
endValue: valueRange[1]
});
});
});
function resetSingleAxis(dimNames, axisIndex, dataZoomModel) {
dataZoomModel.getAxisProxy(dimNames.name, axisIndex).reset(dataZoomModel);
}
function filterSingleAxis(dimNames, axisIndex, dataZoomModel) {
dataZoomModel.getAxisProxy(dimNames.name, axisIndex).filterData(dataZoomModel);
}
});
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